apps.c revision 337982
1/* apps/apps.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to.  The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 *    notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 *    notice, this list of conditions and the following disclaimer in the
30 *    documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 *    must display the following acknowledgement:
33 *    "This product includes cryptographic software written by
34 *     Eric Young (eay@cryptsoft.com)"
35 *    The word 'cryptographic' can be left out if the rouines from the library
36 *    being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 *    the apps directory (application code) you must include an acknowledgement:
39 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed.  i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58/* ====================================================================
59 * Copyright (c) 1998-2018 The OpenSSL Project.  All rights reserved.
60 *
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
63 * are met:
64 *
65 * 1. Redistributions of source code must retain the above copyright
66 *    notice, this list of conditions and the following disclaimer.
67 *
68 * 2. Redistributions in binary form must reproduce the above copyright
69 *    notice, this list of conditions and the following disclaimer in
70 *    the documentation and/or other materials provided with the
71 *    distribution.
72 *
73 * 3. All advertising materials mentioning features or use of this
74 *    software must display the following acknowledgment:
75 *    "This product includes software developed by the OpenSSL Project
76 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
77 *
78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79 *    endorse or promote products derived from this software without
80 *    prior written permission. For written permission, please contact
81 *    openssl-core@openssl.org.
82 *
83 * 5. Products derived from this software may not be called "OpenSSL"
84 *    nor may "OpenSSL" appear in their names without prior written
85 *    permission of the OpenSSL Project.
86 *
87 * 6. Redistributions of any form whatsoever must retain the following
88 *    acknowledgment:
89 *    "This product includes software developed by the OpenSSL Project
90 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
91 *
92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103 * OF THE POSSIBILITY OF SUCH DAMAGE.
104 * ====================================================================
105 *
106 * This product includes cryptographic software written by Eric Young
107 * (eay@cryptsoft.com).  This product includes software written by Tim
108 * Hudson (tjh@cryptsoft.com).
109 *
110 */
111
112#if !defined(_POSIX_C_SOURCE) && defined(OPENSSL_SYS_VMS)
113/*
114 * On VMS, you need to define this to get the declaration of fileno().  The
115 * value 2 is to make sure no function defined in POSIX-2 is left undefined.
116 */
117# define _POSIX_C_SOURCE 2
118#endif
119#include <stdio.h>
120#include <stdlib.h>
121#include <string.h>
122#include <sys/types.h>
123#include <ctype.h>
124#include <errno.h>
125#include <assert.h>
126#include <openssl/err.h>
127#include <openssl/x509.h>
128#include <openssl/x509v3.h>
129#include <openssl/pem.h>
130#include <openssl/pkcs12.h>
131#include <openssl/ui.h>
132#include <openssl/safestack.h>
133#ifndef OPENSSL_NO_ENGINE
134# include <openssl/engine.h>
135#endif
136#ifndef OPENSSL_NO_RSA
137# include <openssl/rsa.h>
138#endif
139#include <openssl/bn.h>
140#ifndef OPENSSL_NO_JPAKE
141# include <openssl/jpake.h>
142#endif
143
144#define NON_MAIN
145#include "apps.h"
146#undef NON_MAIN
147
148#ifdef _WIN32
149static int WIN32_rename(const char *from, const char *to);
150# define rename(from,to) WIN32_rename((from),(to))
151# ifdef fileno
152#  undef fileno
153# endif
154# define fileno(a) (int)_fileno(a)
155#endif
156
157typedef struct {
158    const char *name;
159    unsigned long flag;
160    unsigned long mask;
161} NAME_EX_TBL;
162
163static UI_METHOD *ui_method = NULL;
164
165static int set_table_opts(unsigned long *flags, const char *arg,
166                          const NAME_EX_TBL * in_tbl);
167static int set_multi_opts(unsigned long *flags, const char *arg,
168                          const NAME_EX_TBL * in_tbl);
169
170#if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
171/* Looks like this stuff is worth moving into separate function */
172static EVP_PKEY *load_netscape_key(BIO *err, BIO *key, const char *file,
173                                   const char *key_descrip, int format);
174#endif
175
176int app_init(long mesgwin);
177#ifdef undef                    /* never finished - probably never will be
178                                 * :-) */
179int args_from_file(char *file, int *argc, char **argv[])
180{
181    FILE *fp;
182    int num, i;
183    unsigned int len;
184    static char *buf = NULL;
185    static char **arg = NULL;
186    char *p;
187
188    fp = fopen(file, "r");
189    if (fp == NULL)
190        return (0);
191
192    if (fseek(fp, 0, SEEK_END) == 0)
193        len = ftell(fp), rewind(fp);
194    else
195        len = -1;
196    if (len <= 0) {
197        fclose(fp);
198        return (0);
199    }
200
201    *argc = 0;
202    *argv = NULL;
203
204    if (buf != NULL)
205        OPENSSL_free(buf);
206    buf = (char *)OPENSSL_malloc(len + 1);
207    if (buf == NULL)
208        return (0);
209
210    len = fread(buf, 1, len, fp);
211    if (len <= 1)
212        return (0);
213    buf[len] = '\0';
214
215    i = 0;
216    for (p = buf; *p; p++)
217        if (*p == '\n')
218            i++;
219    if (arg != NULL)
220        OPENSSL_free(arg);
221    arg = (char **)OPENSSL_malloc(sizeof(char *) * (i * 2));
222    if (arg == NULL)
223        return 0;
224    *argv = arg;
225    num = 0;
226    p = buf;
227    for (;;) {
228        if (!*p)
229            break;
230        if (*p == '#') {        /* comment line */
231            while (*p && (*p != '\n'))
232                p++;
233            continue;
234        }
235        /* else we have a line */
236        *(arg++) = p;
237        num++;
238        while (*p && ((*p != ' ') && (*p != '\t') && (*p != '\n')))
239            p++;
240        if (!*p)
241            break;
242        if (*p == '\n') {
243            *(p++) = '\0';
244            continue;
245        }
246        /* else it is a tab or space */
247        p++;
248        while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n')))
249            p++;
250        if (!*p)
251            break;
252        if (*p == '\n') {
253            p++;
254            continue;
255        }
256        *(arg++) = p++;
257        num++;
258        while (*p && (*p != '\n'))
259            p++;
260        if (!*p)
261            break;
262        /* else *p == '\n' */
263        *(p++) = '\0';
264    }
265    *argc = num;
266    return (1);
267}
268#endif
269
270int str2fmt(char *s)
271{
272    if (s == NULL)
273        return FORMAT_UNDEF;
274    if ((*s == 'D') || (*s == 'd'))
275        return (FORMAT_ASN1);
276    else if ((*s == 'T') || (*s == 't'))
277        return (FORMAT_TEXT);
278    else if ((*s == 'N') || (*s == 'n'))
279        return (FORMAT_NETSCAPE);
280    else if ((*s == 'S') || (*s == 's'))
281        return (FORMAT_SMIME);
282    else if ((*s == 'M') || (*s == 'm'))
283        return (FORMAT_MSBLOB);
284    else if ((*s == '1')
285             || (strcmp(s, "PKCS12") == 0) || (strcmp(s, "pkcs12") == 0)
286             || (strcmp(s, "P12") == 0) || (strcmp(s, "p12") == 0))
287        return (FORMAT_PKCS12);
288    else if ((*s == 'E') || (*s == 'e'))
289        return (FORMAT_ENGINE);
290    else if ((*s == 'H') || (*s == 'h'))
291        return FORMAT_HTTP;
292    else if ((*s == 'P') || (*s == 'p')) {
293        if (s[1] == 'V' || s[1] == 'v')
294            return FORMAT_PVK;
295        else
296            return (FORMAT_PEM);
297    } else
298        return (FORMAT_UNDEF);
299}
300
301#if defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16) || defined(OPENSSL_SYS_NETWARE)
302void program_name(char *in, char *out, int size)
303{
304    int i, n;
305    char *p = NULL;
306
307    n = strlen(in);
308    /* find the last '/', '\' or ':' */
309    for (i = n - 1; i > 0; i--) {
310        if ((in[i] == '/') || (in[i] == '\\') || (in[i] == ':')) {
311            p = &(in[i + 1]);
312            break;
313        }
314    }
315    if (p == NULL)
316        p = in;
317    n = strlen(p);
318
319# if defined(OPENSSL_SYS_NETWARE)
320    /* strip off trailing .nlm if present. */
321    if ((n > 4) && (p[n - 4] == '.') &&
322        ((p[n - 3] == 'n') || (p[n - 3] == 'N')) &&
323        ((p[n - 2] == 'l') || (p[n - 2] == 'L')) &&
324        ((p[n - 1] == 'm') || (p[n - 1] == 'M')))
325        n -= 4;
326# else
327    /* strip off trailing .exe if present. */
328    if ((n > 4) && (p[n - 4] == '.') &&
329        ((p[n - 3] == 'e') || (p[n - 3] == 'E')) &&
330        ((p[n - 2] == 'x') || (p[n - 2] == 'X')) &&
331        ((p[n - 1] == 'e') || (p[n - 1] == 'E')))
332        n -= 4;
333# endif
334
335    if (n > size - 1)
336        n = size - 1;
337
338    for (i = 0; i < n; i++) {
339        if ((p[i] >= 'A') && (p[i] <= 'Z'))
340            out[i] = p[i] - 'A' + 'a';
341        else
342            out[i] = p[i];
343    }
344    out[n] = '\0';
345}
346#else
347# ifdef OPENSSL_SYS_VMS
348void program_name(char *in, char *out, int size)
349{
350    char *p = in, *q;
351    char *chars = ":]>";
352
353    while (*chars != '\0') {
354        q = strrchr(p, *chars);
355        if (q > p)
356            p = q + 1;
357        chars++;
358    }
359
360    q = strrchr(p, '.');
361    if (q == NULL)
362        q = p + strlen(p);
363    strncpy(out, p, size - 1);
364    if (q - p >= size) {
365        out[size - 1] = '\0';
366    } else {
367        out[q - p] = '\0';
368    }
369}
370# else
371void program_name(char *in, char *out, int size)
372{
373    char *p;
374
375    p = strrchr(in, '/');
376    if (p != NULL)
377        p++;
378    else
379        p = in;
380    BUF_strlcpy(out, p, size);
381}
382# endif
383#endif
384
385int chopup_args(ARGS *arg, char *buf, int *argc, char **argv[])
386{
387    int num, i;
388    char *p;
389
390    *argc = 0;
391    *argv = NULL;
392
393    i = 0;
394    if (arg->count == 0) {
395        arg->count = 20;
396        arg->data = (char **)OPENSSL_malloc(sizeof(char *) * arg->count);
397        if (arg->data == NULL)
398            return 0;
399    }
400    for (i = 0; i < arg->count; i++)
401        arg->data[i] = NULL;
402
403    num = 0;
404    p = buf;
405    for (;;) {
406        /* first scan over white space */
407        if (!*p)
408            break;
409        while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n')))
410            p++;
411        if (!*p)
412            break;
413
414        /* The start of something good :-) */
415        if (num >= arg->count) {
416            char **tmp_p;
417            int tlen = arg->count + 20;
418            tmp_p = (char **)OPENSSL_realloc(arg->data,
419                                             sizeof(char *) * tlen);
420            if (tmp_p == NULL)
421                return 0;
422            arg->data = tmp_p;
423            arg->count = tlen;
424            /* initialize newly allocated data */
425            for (i = num; i < arg->count; i++)
426                arg->data[i] = NULL;
427        }
428        arg->data[num++] = p;
429
430        /* now look for the end of this */
431        if ((*p == '\'') || (*p == '\"')) { /* scan for closing quote */
432            i = *(p++);
433            arg->data[num - 1]++; /* jump over quote */
434            while (*p && (*p != i))
435                p++;
436            *p = '\0';
437        } else {
438            while (*p && ((*p != ' ') && (*p != '\t') && (*p != '\n')))
439                p++;
440
441            if (*p == '\0')
442                p--;
443            else
444                *p = '\0';
445        }
446        p++;
447    }
448    *argc = num;
449    *argv = arg->data;
450    return (1);
451}
452
453#ifndef APP_INIT
454int app_init(long mesgwin)
455{
456    return (1);
457}
458#endif
459
460int dump_cert_text(BIO *out, X509 *x)
461{
462    char *p;
463
464    p = X509_NAME_oneline(X509_get_subject_name(x), NULL, 0);
465    BIO_puts(out, "subject=");
466    BIO_puts(out, p);
467    OPENSSL_free(p);
468
469    p = X509_NAME_oneline(X509_get_issuer_name(x), NULL, 0);
470    BIO_puts(out, "\nissuer=");
471    BIO_puts(out, p);
472    BIO_puts(out, "\n");
473    OPENSSL_free(p);
474
475    return 0;
476}
477
478static int ui_open(UI *ui)
479{
480    return UI_method_get_opener(UI_OpenSSL())(ui);
481}
482
483static int ui_read(UI *ui, UI_STRING *uis)
484{
485    if (UI_get_input_flags(uis) & UI_INPUT_FLAG_DEFAULT_PWD
486        && UI_get0_user_data(ui)) {
487        switch (UI_get_string_type(uis)) {
488        case UIT_PROMPT:
489        case UIT_VERIFY:
490            {
491                const char *password =
492                    ((PW_CB_DATA *)UI_get0_user_data(ui))->password;
493                if (password && password[0] != '\0') {
494                    UI_set_result(ui, uis, password);
495                    return 1;
496                }
497            }
498        default:
499            break;
500        }
501    }
502    return UI_method_get_reader(UI_OpenSSL())(ui, uis);
503}
504
505static int ui_write(UI *ui, UI_STRING *uis)
506{
507    if (UI_get_input_flags(uis) & UI_INPUT_FLAG_DEFAULT_PWD
508        && UI_get0_user_data(ui)) {
509        switch (UI_get_string_type(uis)) {
510        case UIT_PROMPT:
511        case UIT_VERIFY:
512            {
513                const char *password =
514                    ((PW_CB_DATA *)UI_get0_user_data(ui))->password;
515                if (password && password[0] != '\0')
516                    return 1;
517            }
518        default:
519            break;
520        }
521    }
522    return UI_method_get_writer(UI_OpenSSL())(ui, uis);
523}
524
525static int ui_close(UI *ui)
526{
527    return UI_method_get_closer(UI_OpenSSL())(ui);
528}
529
530int setup_ui_method(void)
531{
532    ui_method = UI_create_method("OpenSSL application user interface");
533    UI_method_set_opener(ui_method, ui_open);
534    UI_method_set_reader(ui_method, ui_read);
535    UI_method_set_writer(ui_method, ui_write);
536    UI_method_set_closer(ui_method, ui_close);
537    return 0;
538}
539
540void destroy_ui_method(void)
541{
542    if (ui_method) {
543        UI_destroy_method(ui_method);
544        ui_method = NULL;
545    }
546}
547
548int password_callback(char *buf, int bufsiz, int verify, PW_CB_DATA *cb_tmp)
549{
550    UI *ui = NULL;
551    int res = 0;
552    const char *prompt_info = NULL;
553    const char *password = NULL;
554    PW_CB_DATA *cb_data = (PW_CB_DATA *)cb_tmp;
555
556    if (cb_data) {
557        if (cb_data->password)
558            password = cb_data->password;
559        if (cb_data->prompt_info)
560            prompt_info = cb_data->prompt_info;
561    }
562
563    if (password) {
564        res = strlen(password);
565        if (res > bufsiz)
566            res = bufsiz;
567        memcpy(buf, password, res);
568        return res;
569    }
570
571    ui = UI_new_method(ui_method);
572    if (ui) {
573        int ok = 0;
574        char *buff = NULL;
575        int ui_flags = 0;
576        char *prompt = NULL;
577
578        prompt = UI_construct_prompt(ui, "pass phrase", prompt_info);
579        if (!prompt) {
580            BIO_printf(bio_err, "Out of memory\n");
581            UI_free(ui);
582            return 0;
583        }
584
585        ui_flags |= UI_INPUT_FLAG_DEFAULT_PWD;
586        UI_ctrl(ui, UI_CTRL_PRINT_ERRORS, 1, 0, 0);
587
588        if (ok >= 0)
589            ok = UI_add_input_string(ui, prompt, ui_flags, buf,
590                                     PW_MIN_LENGTH, bufsiz - 1);
591        if (ok >= 0 && verify) {
592            buff = (char *)OPENSSL_malloc(bufsiz);
593            if (!buff) {
594                BIO_printf(bio_err, "Out of memory\n");
595                UI_free(ui);
596                OPENSSL_free(prompt);
597                return 0;
598            }
599            ok = UI_add_verify_string(ui, prompt, ui_flags, buff,
600                                      PW_MIN_LENGTH, bufsiz - 1, buf);
601        }
602        if (ok >= 0)
603            do {
604                ok = UI_process(ui);
605            }
606            while (ok < 0 && UI_ctrl(ui, UI_CTRL_IS_REDOABLE, 0, 0, 0));
607
608        if (buff) {
609            OPENSSL_cleanse(buff, (unsigned int)bufsiz);
610            OPENSSL_free(buff);
611        }
612
613        if (ok >= 0)
614            res = strlen(buf);
615        if (ok == -1) {
616            BIO_printf(bio_err, "User interface error\n");
617            ERR_print_errors(bio_err);
618            OPENSSL_cleanse(buf, (unsigned int)bufsiz);
619            res = 0;
620        }
621        if (ok == -2) {
622            BIO_printf(bio_err, "aborted!\n");
623            OPENSSL_cleanse(buf, (unsigned int)bufsiz);
624            res = 0;
625        }
626        UI_free(ui);
627        OPENSSL_free(prompt);
628    }
629    return res;
630}
631
632static char *app_get_pass(BIO *err, char *arg, int keepbio);
633
634int app_passwd(BIO *err, char *arg1, char *arg2, char **pass1, char **pass2)
635{
636    int same;
637    if (!arg2 || !arg1 || strcmp(arg1, arg2))
638        same = 0;
639    else
640        same = 1;
641    if (arg1) {
642        *pass1 = app_get_pass(err, arg1, same);
643        if (!*pass1)
644            return 0;
645    } else if (pass1)
646        *pass1 = NULL;
647    if (arg2) {
648        *pass2 = app_get_pass(err, arg2, same ? 2 : 0);
649        if (!*pass2)
650            return 0;
651    } else if (pass2)
652        *pass2 = NULL;
653    return 1;
654}
655
656static char *app_get_pass(BIO *err, char *arg, int keepbio)
657{
658    char *tmp, tpass[APP_PASS_LEN];
659    static BIO *pwdbio = NULL;
660    int i;
661    if (!strncmp(arg, "pass:", 5))
662        return BUF_strdup(arg + 5);
663    if (!strncmp(arg, "env:", 4)) {
664        tmp = getenv(arg + 4);
665        if (!tmp) {
666            BIO_printf(err, "Can't read environment variable %s\n", arg + 4);
667            return NULL;
668        }
669        return BUF_strdup(tmp);
670    }
671    if (!keepbio || !pwdbio) {
672        if (!strncmp(arg, "file:", 5)) {
673            pwdbio = BIO_new_file(arg + 5, "r");
674            if (!pwdbio) {
675                BIO_printf(err, "Can't open file %s\n", arg + 5);
676                return NULL;
677            }
678#if !defined(_WIN32)
679            /*
680             * Under _WIN32, which covers even Win64 and CE, file
681             * descriptors referenced by BIO_s_fd are not inherited
682             * by child process and therefore below is not an option.
683             * It could have been an option if bss_fd.c was operating
684             * on real Windows descriptors, such as those obtained
685             * with CreateFile.
686             */
687        } else if (!strncmp(arg, "fd:", 3)) {
688            BIO *btmp;
689            i = atoi(arg + 3);
690            if (i >= 0)
691                pwdbio = BIO_new_fd(i, BIO_NOCLOSE);
692            if ((i < 0) || !pwdbio) {
693                BIO_printf(err, "Can't access file descriptor %s\n", arg + 3);
694                return NULL;
695            }
696            /*
697             * Can't do BIO_gets on an fd BIO so add a buffering BIO
698             */
699            btmp = BIO_new(BIO_f_buffer());
700            pwdbio = BIO_push(btmp, pwdbio);
701#endif
702        } else if (!strcmp(arg, "stdin")) {
703            pwdbio = BIO_new_fp(stdin, BIO_NOCLOSE);
704            if (!pwdbio) {
705                BIO_printf(err, "Can't open BIO for stdin\n");
706                return NULL;
707            }
708        } else {
709            BIO_printf(err, "Invalid password argument \"%s\"\n", arg);
710            return NULL;
711        }
712    }
713    i = BIO_gets(pwdbio, tpass, APP_PASS_LEN);
714    if (keepbio != 1) {
715        BIO_free_all(pwdbio);
716        pwdbio = NULL;
717    }
718    if (i <= 0) {
719        BIO_printf(err, "Error reading password from BIO\n");
720        return NULL;
721    }
722    tmp = strchr(tpass, '\n');
723    if (tmp)
724        *tmp = 0;
725    return BUF_strdup(tpass);
726}
727
728int add_oid_section(BIO *err, CONF *conf)
729{
730    char *p;
731    STACK_OF(CONF_VALUE) *sktmp;
732    CONF_VALUE *cnf;
733    int i;
734    if (!(p = NCONF_get_string(conf, NULL, "oid_section"))) {
735        ERR_clear_error();
736        return 1;
737    }
738    if (!(sktmp = NCONF_get_section(conf, p))) {
739        BIO_printf(err, "problem loading oid section %s\n", p);
740        return 0;
741    }
742    for (i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
743        cnf = sk_CONF_VALUE_value(sktmp, i);
744        if (OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
745            BIO_printf(err, "problem creating object %s=%s\n",
746                       cnf->name, cnf->value);
747            return 0;
748        }
749    }
750    return 1;
751}
752
753static int load_pkcs12(BIO *err, BIO *in, const char *desc,
754                       pem_password_cb *pem_cb, void *cb_data,
755                       EVP_PKEY **pkey, X509 **cert, STACK_OF(X509) **ca)
756{
757    const char *pass;
758    char tpass[PEM_BUFSIZE];
759    int len, ret = 0;
760    PKCS12 *p12;
761    p12 = d2i_PKCS12_bio(in, NULL);
762    if (p12 == NULL) {
763        BIO_printf(err, "Error loading PKCS12 file for %s\n", desc);
764        goto die;
765    }
766    /* See if an empty password will do */
767    if (PKCS12_verify_mac(p12, "", 0) || PKCS12_verify_mac(p12, NULL, 0))
768        pass = "";
769    else {
770        if (!pem_cb)
771            pem_cb = (pem_password_cb *)password_callback;
772        len = pem_cb(tpass, PEM_BUFSIZE, 0, cb_data);
773        if (len < 0) {
774            BIO_printf(err, "Passpharse callback error for %s\n", desc);
775            goto die;
776        }
777        if (len < PEM_BUFSIZE)
778            tpass[len] = 0;
779        if (!PKCS12_verify_mac(p12, tpass, len)) {
780            BIO_printf(err,
781                       "Mac verify error (wrong password?) in PKCS12 file for %s\n",
782                       desc);
783            goto die;
784        }
785        pass = tpass;
786    }
787    ret = PKCS12_parse(p12, pass, pkey, cert, ca);
788 die:
789    if (p12)
790        PKCS12_free(p12);
791    return ret;
792}
793
794int load_cert_crl_http(const char *url, BIO *err,
795                       X509 **pcert, X509_CRL **pcrl)
796{
797    char *host = NULL, *port = NULL, *path = NULL;
798    BIO *bio = NULL;
799    OCSP_REQ_CTX *rctx = NULL;
800    int use_ssl, rv = 0;
801    if (!OCSP_parse_url(url, &host, &port, &path, &use_ssl))
802        goto err;
803    if (use_ssl) {
804        if (err)
805            BIO_puts(err, "https not supported\n");
806        goto err;
807    }
808    bio = BIO_new_connect(host);
809    if (!bio || !BIO_set_conn_port(bio, port))
810        goto err;
811    rctx = OCSP_REQ_CTX_new(bio, 1024);
812    if (!rctx)
813        goto err;
814    if (!OCSP_REQ_CTX_http(rctx, "GET", path))
815        goto err;
816    if (!OCSP_REQ_CTX_add1_header(rctx, "Host", host))
817        goto err;
818    if (pcert) {
819        do {
820            rv = X509_http_nbio(rctx, pcert);
821        }
822        while (rv == -1);
823    } else {
824        do {
825            rv = X509_CRL_http_nbio(rctx, pcrl);
826        } while (rv == -1);
827    }
828
829 err:
830    if (host)
831        OPENSSL_free(host);
832    if (path)
833        OPENSSL_free(path);
834    if (port)
835        OPENSSL_free(port);
836    if (bio)
837        BIO_free_all(bio);
838    if (rctx)
839        OCSP_REQ_CTX_free(rctx);
840    if (rv != 1) {
841        if (bio && err)
842            BIO_printf(bio_err, "Error loading %s from %s\n",
843                       pcert ? "certificate" : "CRL", url);
844        ERR_print_errors(bio_err);
845    }
846    return rv;
847}
848
849X509 *load_cert(BIO *err, const char *file, int format,
850                const char *pass, ENGINE *e, const char *cert_descrip)
851{
852    X509 *x = NULL;
853    BIO *cert;
854
855    if (format == FORMAT_HTTP) {
856        load_cert_crl_http(file, err, &x, NULL);
857        return x;
858    }
859
860    if ((cert = BIO_new(BIO_s_file())) == NULL) {
861        ERR_print_errors(err);
862        goto end;
863    }
864
865    if (file == NULL) {
866#ifdef _IONBF
867# ifndef OPENSSL_NO_SETVBUF_IONBF
868        setvbuf(stdin, NULL, _IONBF, 0);
869# endif                         /* ndef OPENSSL_NO_SETVBUF_IONBF */
870#endif
871        BIO_set_fp(cert, stdin, BIO_NOCLOSE);
872    } else {
873        if (BIO_read_filename(cert, file) <= 0) {
874            BIO_printf(err, "Error opening %s %s\n", cert_descrip, file);
875            ERR_print_errors(err);
876            goto end;
877        }
878    }
879
880    if (format == FORMAT_ASN1)
881        x = d2i_X509_bio(cert, NULL);
882    else if (format == FORMAT_NETSCAPE) {
883        NETSCAPE_X509 *nx;
884        nx = ASN1_item_d2i_bio(ASN1_ITEM_rptr(NETSCAPE_X509), cert, NULL);
885        if (nx == NULL)
886            goto end;
887
888        if ((strncmp(NETSCAPE_CERT_HDR, (char *)nx->header->data,
889                     nx->header->length) != 0)) {
890            NETSCAPE_X509_free(nx);
891            BIO_printf(err, "Error reading header on certificate\n");
892            goto end;
893        }
894        x = nx->cert;
895        nx->cert = NULL;
896        NETSCAPE_X509_free(nx);
897    } else if (format == FORMAT_PEM)
898        x = PEM_read_bio_X509_AUX(cert, NULL,
899                                  (pem_password_cb *)password_callback, NULL);
900    else if (format == FORMAT_PKCS12) {
901        if (!load_pkcs12(err, cert, cert_descrip, NULL, NULL, NULL, &x, NULL))
902            goto end;
903    } else {
904        BIO_printf(err, "bad input format specified for %s\n", cert_descrip);
905        goto end;
906    }
907 end:
908    if (x == NULL) {
909        BIO_printf(err, "unable to load certificate\n");
910        ERR_print_errors(err);
911    }
912    if (cert != NULL)
913        BIO_free(cert);
914    return (x);
915}
916
917X509_CRL *load_crl(const char *infile, int format)
918{
919    X509_CRL *x = NULL;
920    BIO *in = NULL;
921
922    if (format == FORMAT_HTTP) {
923        load_cert_crl_http(infile, bio_err, NULL, &x);
924        return x;
925    }
926
927    in = BIO_new(BIO_s_file());
928    if (in == NULL) {
929        ERR_print_errors(bio_err);
930        goto end;
931    }
932
933    if (infile == NULL)
934        BIO_set_fp(in, stdin, BIO_NOCLOSE);
935    else {
936        if (BIO_read_filename(in, infile) <= 0) {
937            perror(infile);
938            goto end;
939        }
940    }
941    if (format == FORMAT_ASN1)
942        x = d2i_X509_CRL_bio(in, NULL);
943    else if (format == FORMAT_PEM)
944        x = PEM_read_bio_X509_CRL(in, NULL, NULL, NULL);
945    else {
946        BIO_printf(bio_err, "bad input format specified for input crl\n");
947        goto end;
948    }
949    if (x == NULL) {
950        BIO_printf(bio_err, "unable to load CRL\n");
951        ERR_print_errors(bio_err);
952        goto end;
953    }
954
955 end:
956    BIO_free(in);
957    return (x);
958}
959
960EVP_PKEY *load_key(BIO *err, const char *file, int format, int maybe_stdin,
961                   const char *pass, ENGINE *e, const char *key_descrip)
962{
963    BIO *key = NULL;
964    EVP_PKEY *pkey = NULL;
965    PW_CB_DATA cb_data;
966
967    cb_data.password = pass;
968    cb_data.prompt_info = file;
969
970    if (file == NULL && (!maybe_stdin || format == FORMAT_ENGINE)) {
971        BIO_printf(err, "no keyfile specified\n");
972        goto end;
973    }
974#ifndef OPENSSL_NO_ENGINE
975    if (format == FORMAT_ENGINE) {
976        if (!e)
977            BIO_printf(err, "no engine specified\n");
978        else {
979            if (ENGINE_init(e)) {
980                pkey = ENGINE_load_private_key(e, file, ui_method, &cb_data);
981                ENGINE_finish(e);
982            }
983            if (!pkey) {
984                BIO_printf(err, "cannot load %s from engine\n", key_descrip);
985                ERR_print_errors(err);
986            }
987        }
988        goto end;
989    }
990#endif
991    key = BIO_new(BIO_s_file());
992    if (key == NULL) {
993        ERR_print_errors(err);
994        goto end;
995    }
996    if (file == NULL && maybe_stdin) {
997#ifdef _IONBF
998# ifndef OPENSSL_NO_SETVBUF_IONBF
999        setvbuf(stdin, NULL, _IONBF, 0);
1000# endif                         /* ndef OPENSSL_NO_SETVBUF_IONBF */
1001#endif
1002        BIO_set_fp(key, stdin, BIO_NOCLOSE);
1003    } else if (BIO_read_filename(key, file) <= 0) {
1004        BIO_printf(err, "Error opening %s %s\n", key_descrip, file);
1005        ERR_print_errors(err);
1006        goto end;
1007    }
1008    if (format == FORMAT_ASN1) {
1009        pkey = d2i_PrivateKey_bio(key, NULL);
1010    } else if (format == FORMAT_PEM) {
1011        pkey = PEM_read_bio_PrivateKey(key, NULL,
1012                                       (pem_password_cb *)password_callback,
1013                                       &cb_data);
1014    }
1015#if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
1016    else if (format == FORMAT_NETSCAPE || format == FORMAT_IISSGC)
1017        pkey = load_netscape_key(err, key, file, key_descrip, format);
1018#endif
1019    else if (format == FORMAT_PKCS12) {
1020        if (!load_pkcs12(err, key, key_descrip,
1021                         (pem_password_cb *)password_callback, &cb_data,
1022                         &pkey, NULL, NULL))
1023            goto end;
1024    }
1025#if !defined(OPENSSL_NO_RSA) && !defined(OPENSSL_NO_DSA) && !defined (OPENSSL_NO_RC4)
1026    else if (format == FORMAT_MSBLOB)
1027        pkey = b2i_PrivateKey_bio(key);
1028    else if (format == FORMAT_PVK)
1029        pkey = b2i_PVK_bio(key, (pem_password_cb *)password_callback,
1030                           &cb_data);
1031#endif
1032    else {
1033        BIO_printf(err, "bad input format specified for key file\n");
1034        goto end;
1035    }
1036 end:
1037    if (key != NULL)
1038        BIO_free(key);
1039    if (pkey == NULL) {
1040        BIO_printf(err, "unable to load %s\n", key_descrip);
1041        ERR_print_errors(err);
1042    }
1043    return (pkey);
1044}
1045
1046EVP_PKEY *load_pubkey(BIO *err, const char *file, int format, int maybe_stdin,
1047                      const char *pass, ENGINE *e, const char *key_descrip)
1048{
1049    BIO *key = NULL;
1050    EVP_PKEY *pkey = NULL;
1051    PW_CB_DATA cb_data;
1052
1053    cb_data.password = pass;
1054    cb_data.prompt_info = file;
1055
1056    if (file == NULL && (!maybe_stdin || format == FORMAT_ENGINE)) {
1057        BIO_printf(err, "no keyfile specified\n");
1058        goto end;
1059    }
1060#ifndef OPENSSL_NO_ENGINE
1061    if (format == FORMAT_ENGINE) {
1062        if (!e)
1063            BIO_printf(bio_err, "no engine specified\n");
1064        else
1065            pkey = ENGINE_load_public_key(e, file, ui_method, &cb_data);
1066        goto end;
1067    }
1068#endif
1069    key = BIO_new(BIO_s_file());
1070    if (key == NULL) {
1071        ERR_print_errors(err);
1072        goto end;
1073    }
1074    if (file == NULL && maybe_stdin) {
1075#ifdef _IONBF
1076# ifndef OPENSSL_NO_SETVBUF_IONBF
1077        setvbuf(stdin, NULL, _IONBF, 0);
1078# endif                         /* ndef OPENSSL_NO_SETVBUF_IONBF */
1079#endif
1080        BIO_set_fp(key, stdin, BIO_NOCLOSE);
1081    } else if (BIO_read_filename(key, file) <= 0) {
1082        BIO_printf(err, "Error opening %s %s\n", key_descrip, file);
1083        ERR_print_errors(err);
1084        goto end;
1085    }
1086    if (format == FORMAT_ASN1) {
1087        pkey = d2i_PUBKEY_bio(key, NULL);
1088    }
1089#ifndef OPENSSL_NO_RSA
1090    else if (format == FORMAT_ASN1RSA) {
1091        RSA *rsa;
1092        rsa = d2i_RSAPublicKey_bio(key, NULL);
1093        if (rsa) {
1094            pkey = EVP_PKEY_new();
1095            if (pkey)
1096                EVP_PKEY_set1_RSA(pkey, rsa);
1097            RSA_free(rsa);
1098        } else
1099            pkey = NULL;
1100    } else if (format == FORMAT_PEMRSA) {
1101        RSA *rsa;
1102        rsa = PEM_read_bio_RSAPublicKey(key, NULL,
1103                                        (pem_password_cb *)password_callback,
1104                                        &cb_data);
1105        if (rsa) {
1106            pkey = EVP_PKEY_new();
1107            if (pkey)
1108                EVP_PKEY_set1_RSA(pkey, rsa);
1109            RSA_free(rsa);
1110        } else
1111            pkey = NULL;
1112    }
1113#endif
1114    else if (format == FORMAT_PEM) {
1115        pkey = PEM_read_bio_PUBKEY(key, NULL,
1116                                   (pem_password_cb *)password_callback,
1117                                   &cb_data);
1118    }
1119#if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
1120    else if (format == FORMAT_NETSCAPE || format == FORMAT_IISSGC)
1121        pkey = load_netscape_key(err, key, file, key_descrip, format);
1122#endif
1123#if !defined(OPENSSL_NO_RSA) && !defined(OPENSSL_NO_DSA)
1124    else if (format == FORMAT_MSBLOB)
1125        pkey = b2i_PublicKey_bio(key);
1126#endif
1127    else {
1128        BIO_printf(err, "bad input format specified for key file\n");
1129        goto end;
1130    }
1131 end:
1132    if (key != NULL)
1133        BIO_free(key);
1134    if (pkey == NULL)
1135        BIO_printf(err, "unable to load %s\n", key_descrip);
1136    return (pkey);
1137}
1138
1139#if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
1140static EVP_PKEY *load_netscape_key(BIO *err, BIO *key, const char *file,
1141                                   const char *key_descrip, int format)
1142{
1143    EVP_PKEY *pkey;
1144    BUF_MEM *buf;
1145    RSA *rsa;
1146    const unsigned char *p;
1147    int size, i;
1148
1149    buf = BUF_MEM_new();
1150    pkey = EVP_PKEY_new();
1151    size = 0;
1152    if (buf == NULL || pkey == NULL)
1153        goto error;
1154    for (;;) {
1155        if (!BUF_MEM_grow_clean(buf, size + 1024 * 10))
1156            goto error;
1157        i = BIO_read(key, &(buf->data[size]), 1024 * 10);
1158        size += i;
1159        if (i == 0)
1160            break;
1161        if (i < 0) {
1162            BIO_printf(err, "Error reading %s %s", key_descrip, file);
1163            goto error;
1164        }
1165    }
1166    p = (unsigned char *)buf->data;
1167    rsa = d2i_RSA_NET(NULL, &p, (long)size, NULL,
1168                      (format == FORMAT_IISSGC ? 1 : 0));
1169    if (rsa == NULL)
1170        goto error;
1171    BUF_MEM_free(buf);
1172    EVP_PKEY_set1_RSA(pkey, rsa);
1173    return pkey;
1174 error:
1175    BUF_MEM_free(buf);
1176    EVP_PKEY_free(pkey);
1177    return NULL;
1178}
1179#endif                          /* ndef OPENSSL_NO_RC4 */
1180
1181static int load_certs_crls(BIO *err, const char *file, int format,
1182                           const char *pass, ENGINE *e, const char *desc,
1183                           STACK_OF(X509) **pcerts,
1184                           STACK_OF(X509_CRL) **pcrls)
1185{
1186    int i;
1187    BIO *bio;
1188    STACK_OF(X509_INFO) *xis = NULL;
1189    X509_INFO *xi;
1190    PW_CB_DATA cb_data;
1191    int rv = 0;
1192
1193    cb_data.password = pass;
1194    cb_data.prompt_info = file;
1195
1196    if (format != FORMAT_PEM) {
1197        BIO_printf(err, "bad input format specified for %s\n", desc);
1198        return 0;
1199    }
1200
1201    if (file == NULL)
1202        bio = BIO_new_fp(stdin, BIO_NOCLOSE);
1203    else
1204        bio = BIO_new_file(file, "r");
1205
1206    if (bio == NULL) {
1207        BIO_printf(err, "Error opening %s %s\n", desc, file ? file : "stdin");
1208        ERR_print_errors(err);
1209        return 0;
1210    }
1211
1212    xis = PEM_X509_INFO_read_bio(bio, NULL,
1213                                 (pem_password_cb *)password_callback,
1214                                 &cb_data);
1215
1216    BIO_free(bio);
1217
1218    if (pcerts) {
1219        *pcerts = sk_X509_new_null();
1220        if (!*pcerts)
1221            goto end;
1222    }
1223
1224    if (pcrls) {
1225        *pcrls = sk_X509_CRL_new_null();
1226        if (!*pcrls)
1227            goto end;
1228    }
1229
1230    for (i = 0; i < sk_X509_INFO_num(xis); i++) {
1231        xi = sk_X509_INFO_value(xis, i);
1232        if (xi->x509 && pcerts) {
1233            if (!sk_X509_push(*pcerts, xi->x509))
1234                goto end;
1235            xi->x509 = NULL;
1236        }
1237        if (xi->crl && pcrls) {
1238            if (!sk_X509_CRL_push(*pcrls, xi->crl))
1239                goto end;
1240            xi->crl = NULL;
1241        }
1242    }
1243
1244    if (pcerts && sk_X509_num(*pcerts) > 0)
1245        rv = 1;
1246
1247    if (pcrls && sk_X509_CRL_num(*pcrls) > 0)
1248        rv = 1;
1249
1250 end:
1251
1252    if (xis)
1253        sk_X509_INFO_pop_free(xis, X509_INFO_free);
1254
1255    if (rv == 0) {
1256        if (pcerts) {
1257            sk_X509_pop_free(*pcerts, X509_free);
1258            *pcerts = NULL;
1259        }
1260        if (pcrls) {
1261            sk_X509_CRL_pop_free(*pcrls, X509_CRL_free);
1262            *pcrls = NULL;
1263        }
1264        BIO_printf(err, "unable to load %s\n",
1265                   pcerts ? "certificates" : "CRLs");
1266        ERR_print_errors(err);
1267    }
1268    return rv;
1269}
1270
1271STACK_OF(X509) *load_certs(BIO *err, const char *file, int format,
1272                           const char *pass, ENGINE *e, const char *desc)
1273{
1274    STACK_OF(X509) *certs;
1275    if (!load_certs_crls(err, file, format, pass, e, desc, &certs, NULL))
1276        return NULL;
1277    return certs;
1278}
1279
1280STACK_OF(X509_CRL) *load_crls(BIO *err, const char *file, int format,
1281                              const char *pass, ENGINE *e, const char *desc)
1282{
1283    STACK_OF(X509_CRL) *crls;
1284    if (!load_certs_crls(err, file, format, pass, e, desc, NULL, &crls))
1285        return NULL;
1286    return crls;
1287}
1288
1289#define X509V3_EXT_UNKNOWN_MASK         (0xfL << 16)
1290/* Return error for unknown extensions */
1291#define X509V3_EXT_DEFAULT              0
1292/* Print error for unknown extensions */
1293#define X509V3_EXT_ERROR_UNKNOWN        (1L << 16)
1294/* ASN1 parse unknown extensions */
1295#define X509V3_EXT_PARSE_UNKNOWN        (2L << 16)
1296/* BIO_dump unknown extensions */
1297#define X509V3_EXT_DUMP_UNKNOWN         (3L << 16)
1298
1299#define X509_FLAG_CA (X509_FLAG_NO_ISSUER | X509_FLAG_NO_PUBKEY | \
1300                         X509_FLAG_NO_HEADER | X509_FLAG_NO_VERSION)
1301
1302int set_cert_ex(unsigned long *flags, const char *arg)
1303{
1304    static const NAME_EX_TBL cert_tbl[] = {
1305        {"compatible", X509_FLAG_COMPAT, 0xffffffffl},
1306        {"ca_default", X509_FLAG_CA, 0xffffffffl},
1307        {"no_header", X509_FLAG_NO_HEADER, 0},
1308        {"no_version", X509_FLAG_NO_VERSION, 0},
1309        {"no_serial", X509_FLAG_NO_SERIAL, 0},
1310        {"no_signame", X509_FLAG_NO_SIGNAME, 0},
1311        {"no_validity", X509_FLAG_NO_VALIDITY, 0},
1312        {"no_subject", X509_FLAG_NO_SUBJECT, 0},
1313        {"no_issuer", X509_FLAG_NO_ISSUER, 0},
1314        {"no_pubkey", X509_FLAG_NO_PUBKEY, 0},
1315        {"no_extensions", X509_FLAG_NO_EXTENSIONS, 0},
1316        {"no_sigdump", X509_FLAG_NO_SIGDUMP, 0},
1317        {"no_aux", X509_FLAG_NO_AUX, 0},
1318        {"no_attributes", X509_FLAG_NO_ATTRIBUTES, 0},
1319        {"ext_default", X509V3_EXT_DEFAULT, X509V3_EXT_UNKNOWN_MASK},
1320        {"ext_error", X509V3_EXT_ERROR_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1321        {"ext_parse", X509V3_EXT_PARSE_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1322        {"ext_dump", X509V3_EXT_DUMP_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1323        {NULL, 0, 0}
1324    };
1325    return set_multi_opts(flags, arg, cert_tbl);
1326}
1327
1328int set_name_ex(unsigned long *flags, const char *arg)
1329{
1330    static const NAME_EX_TBL ex_tbl[] = {
1331        {"esc_2253", ASN1_STRFLGS_ESC_2253, 0},
1332        {"esc_ctrl", ASN1_STRFLGS_ESC_CTRL, 0},
1333        {"esc_msb", ASN1_STRFLGS_ESC_MSB, 0},
1334        {"use_quote", ASN1_STRFLGS_ESC_QUOTE, 0},
1335        {"utf8", ASN1_STRFLGS_UTF8_CONVERT, 0},
1336        {"ignore_type", ASN1_STRFLGS_IGNORE_TYPE, 0},
1337        {"show_type", ASN1_STRFLGS_SHOW_TYPE, 0},
1338        {"dump_all", ASN1_STRFLGS_DUMP_ALL, 0},
1339        {"dump_nostr", ASN1_STRFLGS_DUMP_UNKNOWN, 0},
1340        {"dump_der", ASN1_STRFLGS_DUMP_DER, 0},
1341        {"compat", XN_FLAG_COMPAT, 0xffffffffL},
1342        {"sep_comma_plus", XN_FLAG_SEP_COMMA_PLUS, XN_FLAG_SEP_MASK},
1343        {"sep_comma_plus_space", XN_FLAG_SEP_CPLUS_SPC, XN_FLAG_SEP_MASK},
1344        {"sep_semi_plus_space", XN_FLAG_SEP_SPLUS_SPC, XN_FLAG_SEP_MASK},
1345        {"sep_multiline", XN_FLAG_SEP_MULTILINE, XN_FLAG_SEP_MASK},
1346        {"dn_rev", XN_FLAG_DN_REV, 0},
1347        {"nofname", XN_FLAG_FN_NONE, XN_FLAG_FN_MASK},
1348        {"sname", XN_FLAG_FN_SN, XN_FLAG_FN_MASK},
1349        {"lname", XN_FLAG_FN_LN, XN_FLAG_FN_MASK},
1350        {"align", XN_FLAG_FN_ALIGN, 0},
1351        {"oid", XN_FLAG_FN_OID, XN_FLAG_FN_MASK},
1352        {"space_eq", XN_FLAG_SPC_EQ, 0},
1353        {"dump_unknown", XN_FLAG_DUMP_UNKNOWN_FIELDS, 0},
1354        {"RFC2253", XN_FLAG_RFC2253, 0xffffffffL},
1355        {"oneline", XN_FLAG_ONELINE, 0xffffffffL},
1356        {"multiline", XN_FLAG_MULTILINE, 0xffffffffL},
1357        {"ca_default", XN_FLAG_MULTILINE, 0xffffffffL},
1358        {NULL, 0, 0}
1359    };
1360    if (set_multi_opts(flags, arg, ex_tbl) == 0)
1361        return 0;
1362    if (*flags != XN_FLAG_COMPAT
1363        && (*flags & XN_FLAG_SEP_MASK) == 0)
1364        *flags |= XN_FLAG_SEP_CPLUS_SPC;
1365    return 1;
1366}
1367
1368int set_ext_copy(int *copy_type, const char *arg)
1369{
1370    if (!strcasecmp(arg, "none"))
1371        *copy_type = EXT_COPY_NONE;
1372    else if (!strcasecmp(arg, "copy"))
1373        *copy_type = EXT_COPY_ADD;
1374    else if (!strcasecmp(arg, "copyall"))
1375        *copy_type = EXT_COPY_ALL;
1376    else
1377        return 0;
1378    return 1;
1379}
1380
1381int copy_extensions(X509 *x, X509_REQ *req, int copy_type)
1382{
1383    STACK_OF(X509_EXTENSION) *exts = NULL;
1384    X509_EXTENSION *ext, *tmpext;
1385    ASN1_OBJECT *obj;
1386    int i, idx, ret = 0;
1387    if (!x || !req || (copy_type == EXT_COPY_NONE))
1388        return 1;
1389    exts = X509_REQ_get_extensions(req);
1390
1391    for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
1392        ext = sk_X509_EXTENSION_value(exts, i);
1393        obj = X509_EXTENSION_get_object(ext);
1394        idx = X509_get_ext_by_OBJ(x, obj, -1);
1395        /* Does extension exist? */
1396        if (idx != -1) {
1397            /* If normal copy don't override existing extension */
1398            if (copy_type == EXT_COPY_ADD)
1399                continue;
1400            /* Delete all extensions of same type */
1401            do {
1402                tmpext = X509_get_ext(x, idx);
1403                X509_delete_ext(x, idx);
1404                X509_EXTENSION_free(tmpext);
1405                idx = X509_get_ext_by_OBJ(x, obj, -1);
1406            } while (idx != -1);
1407        }
1408        if (!X509_add_ext(x, ext, -1))
1409            goto end;
1410    }
1411
1412    ret = 1;
1413
1414 end:
1415
1416    sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
1417
1418    return ret;
1419}
1420
1421static int set_multi_opts(unsigned long *flags, const char *arg,
1422                          const NAME_EX_TBL * in_tbl)
1423{
1424    STACK_OF(CONF_VALUE) *vals;
1425    CONF_VALUE *val;
1426    int i, ret = 1;
1427    if (!arg)
1428        return 0;
1429    vals = X509V3_parse_list(arg);
1430    for (i = 0; i < sk_CONF_VALUE_num(vals); i++) {
1431        val = sk_CONF_VALUE_value(vals, i);
1432        if (!set_table_opts(flags, val->name, in_tbl))
1433            ret = 0;
1434    }
1435    sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
1436    return ret;
1437}
1438
1439static int set_table_opts(unsigned long *flags, const char *arg,
1440                          const NAME_EX_TBL * in_tbl)
1441{
1442    char c;
1443    const NAME_EX_TBL *ptbl;
1444    c = arg[0];
1445
1446    if (c == '-') {
1447        c = 0;
1448        arg++;
1449    } else if (c == '+') {
1450        c = 1;
1451        arg++;
1452    } else
1453        c = 1;
1454
1455    for (ptbl = in_tbl; ptbl->name; ptbl++) {
1456        if (!strcasecmp(arg, ptbl->name)) {
1457            *flags &= ~ptbl->mask;
1458            if (c)
1459                *flags |= ptbl->flag;
1460            else
1461                *flags &= ~ptbl->flag;
1462            return 1;
1463        }
1464    }
1465    return 0;
1466}
1467
1468void print_name(BIO *out, const char *title, X509_NAME *nm,
1469                unsigned long lflags)
1470{
1471    char *buf;
1472    char mline = 0;
1473    int indent = 0;
1474
1475    if (title)
1476        BIO_puts(out, title);
1477    if ((lflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
1478        mline = 1;
1479        indent = 4;
1480    }
1481    if (lflags == XN_FLAG_COMPAT) {
1482        buf = X509_NAME_oneline(nm, 0, 0);
1483        BIO_puts(out, buf);
1484        BIO_puts(out, "\n");
1485        OPENSSL_free(buf);
1486    } else {
1487        if (mline)
1488            BIO_puts(out, "\n");
1489        X509_NAME_print_ex(out, nm, indent, lflags);
1490        BIO_puts(out, "\n");
1491    }
1492}
1493
1494X509_STORE *setup_verify(BIO *bp, char *CAfile, char *CApath)
1495{
1496    X509_STORE *store;
1497    X509_LOOKUP *lookup;
1498    if (!(store = X509_STORE_new()))
1499        goto end;
1500    lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file());
1501    if (lookup == NULL)
1502        goto end;
1503    if (CAfile) {
1504        if (!X509_LOOKUP_load_file(lookup, CAfile, X509_FILETYPE_PEM)) {
1505            BIO_printf(bp, "Error loading file %s\n", CAfile);
1506            goto end;
1507        }
1508    } else
1509        X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
1510
1511    lookup = X509_STORE_add_lookup(store, X509_LOOKUP_hash_dir());
1512    if (lookup == NULL)
1513        goto end;
1514    if (CApath) {
1515        if (!X509_LOOKUP_add_dir(lookup, CApath, X509_FILETYPE_PEM)) {
1516            BIO_printf(bp, "Error loading directory %s\n", CApath);
1517            goto end;
1518        }
1519    } else
1520        X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
1521
1522    ERR_clear_error();
1523    return store;
1524 end:
1525    X509_STORE_free(store);
1526    return NULL;
1527}
1528
1529#ifndef OPENSSL_NO_ENGINE
1530/* Try to load an engine in a shareable library */
1531static ENGINE *try_load_engine(BIO *err, const char *engine, int debug)
1532{
1533    ENGINE *e = ENGINE_by_id("dynamic");
1534    if (e) {
1535        if (!ENGINE_ctrl_cmd_string(e, "SO_PATH", engine, 0)
1536            || !ENGINE_ctrl_cmd_string(e, "LOAD", NULL, 0)) {
1537            ENGINE_free(e);
1538            e = NULL;
1539        }
1540    }
1541    return e;
1542}
1543#endif
1544
1545ENGINE *setup_engine(BIO *err, const char *engine, int debug)
1546{
1547    ENGINE *e = NULL;
1548
1549#ifndef OPENSSL_NO_ENGINE
1550    if (engine) {
1551        if (strcmp(engine, "auto") == 0) {
1552            BIO_printf(err, "enabling auto ENGINE support\n");
1553            ENGINE_register_all_complete();
1554            return NULL;
1555        }
1556        if ((e = ENGINE_by_id(engine)) == NULL
1557            && (e = try_load_engine(err, engine, debug)) == NULL) {
1558            BIO_printf(err, "invalid engine \"%s\"\n", engine);
1559            ERR_print_errors(err);
1560            return NULL;
1561        }
1562        if (debug) {
1563            ENGINE_ctrl(e, ENGINE_CTRL_SET_LOGSTREAM, 0, err, 0);
1564        }
1565        ENGINE_ctrl_cmd(e, "SET_USER_INTERFACE", 0, ui_method, 0, 1);
1566        if (!ENGINE_set_default(e, ENGINE_METHOD_ALL)) {
1567            BIO_printf(err, "can't use that engine\n");
1568            ERR_print_errors(err);
1569            ENGINE_free(e);
1570            return NULL;
1571        }
1572
1573        BIO_printf(err, "engine \"%s\" set.\n", ENGINE_get_id(e));
1574    }
1575#endif
1576    return e;
1577}
1578
1579void release_engine(ENGINE *e)
1580{
1581#ifndef OPENSSL_NO_ENGINE
1582    if (e != NULL)
1583        /* Free our "structural" reference. */
1584        ENGINE_free(e);
1585#endif
1586}
1587
1588int load_config(BIO *err, CONF *cnf)
1589{
1590    static int load_config_called = 0;
1591    if (load_config_called)
1592        return 1;
1593    load_config_called = 1;
1594    if (!cnf)
1595        cnf = config;
1596    if (!cnf)
1597        return 1;
1598
1599    OPENSSL_load_builtin_modules();
1600
1601    if (CONF_modules_load(cnf, NULL, 0) <= 0) {
1602        BIO_printf(err, "Error configuring OpenSSL\n");
1603        ERR_print_errors(err);
1604        return 0;
1605    }
1606    return 1;
1607}
1608
1609char *make_config_name()
1610{
1611    const char *t = X509_get_default_cert_area();
1612    size_t len;
1613    char *p;
1614
1615    len = strlen(t) + strlen(OPENSSL_CONF) + 2;
1616    p = OPENSSL_malloc(len);
1617    if (p == NULL)
1618        return NULL;
1619    BUF_strlcpy(p, t, len);
1620#ifndef OPENSSL_SYS_VMS
1621    BUF_strlcat(p, "/", len);
1622#endif
1623    BUF_strlcat(p, OPENSSL_CONF, len);
1624
1625    return p;
1626}
1627
1628static unsigned long index_serial_hash(const OPENSSL_CSTRING *a)
1629{
1630    const char *n;
1631
1632    n = a[DB_serial];
1633    while (*n == '0')
1634        n++;
1635    return (lh_strhash(n));
1636}
1637
1638static int index_serial_cmp(const OPENSSL_CSTRING *a,
1639                            const OPENSSL_CSTRING *b)
1640{
1641    const char *aa, *bb;
1642
1643    for (aa = a[DB_serial]; *aa == '0'; aa++) ;
1644    for (bb = b[DB_serial]; *bb == '0'; bb++) ;
1645    return (strcmp(aa, bb));
1646}
1647
1648static int index_name_qual(char **a)
1649{
1650    return (a[0][0] == 'V');
1651}
1652
1653static unsigned long index_name_hash(const OPENSSL_CSTRING *a)
1654{
1655    return (lh_strhash(a[DB_name]));
1656}
1657
1658int index_name_cmp(const OPENSSL_CSTRING *a, const OPENSSL_CSTRING *b)
1659{
1660    return (strcmp(a[DB_name], b[DB_name]));
1661}
1662
1663static IMPLEMENT_LHASH_HASH_FN(index_serial, OPENSSL_CSTRING)
1664static IMPLEMENT_LHASH_COMP_FN(index_serial, OPENSSL_CSTRING)
1665static IMPLEMENT_LHASH_HASH_FN(index_name, OPENSSL_CSTRING)
1666static IMPLEMENT_LHASH_COMP_FN(index_name, OPENSSL_CSTRING)
1667#undef BSIZE
1668#define BSIZE 256
1669BIGNUM *load_serial(char *serialfile, int create, ASN1_INTEGER **retai)
1670{
1671    BIO *in = NULL;
1672    BIGNUM *ret = NULL;
1673    MS_STATIC char buf[1024];
1674    ASN1_INTEGER *ai = NULL;
1675
1676    ai = ASN1_INTEGER_new();
1677    if (ai == NULL)
1678        goto err;
1679
1680    if ((in = BIO_new(BIO_s_file())) == NULL) {
1681        ERR_print_errors(bio_err);
1682        goto err;
1683    }
1684
1685    if (BIO_read_filename(in, serialfile) <= 0) {
1686        if (!create) {
1687            perror(serialfile);
1688            goto err;
1689        } else {
1690            ret = BN_new();
1691            if (ret == NULL || !rand_serial(ret, ai))
1692                BIO_printf(bio_err, "Out of memory\n");
1693        }
1694    } else {
1695        if (!a2i_ASN1_INTEGER(in, ai, buf, 1024)) {
1696            BIO_printf(bio_err, "unable to load number from %s\n",
1697                       serialfile);
1698            goto err;
1699        }
1700        ret = ASN1_INTEGER_to_BN(ai, NULL);
1701        if (ret == NULL) {
1702            BIO_printf(bio_err,
1703                       "error converting number from bin to BIGNUM\n");
1704            goto err;
1705        }
1706    }
1707
1708    if (ret && retai) {
1709        *retai = ai;
1710        ai = NULL;
1711    }
1712 err:
1713    if (in != NULL)
1714        BIO_free(in);
1715    if (ai != NULL)
1716        ASN1_INTEGER_free(ai);
1717    return (ret);
1718}
1719
1720int save_serial(char *serialfile, char *suffix, BIGNUM *serial,
1721                ASN1_INTEGER **retai)
1722{
1723    char buf[1][BSIZE];
1724    BIO *out = NULL;
1725    int ret = 0;
1726    ASN1_INTEGER *ai = NULL;
1727    int j;
1728
1729    if (suffix == NULL)
1730        j = strlen(serialfile);
1731    else
1732        j = strlen(serialfile) + strlen(suffix) + 1;
1733    if (j >= BSIZE) {
1734        BIO_printf(bio_err, "file name too long\n");
1735        goto err;
1736    }
1737
1738    if (suffix == NULL)
1739        BUF_strlcpy(buf[0], serialfile, BSIZE);
1740    else {
1741#ifndef OPENSSL_SYS_VMS
1742        j = BIO_snprintf(buf[0], sizeof(buf[0]), "%s.%s", serialfile, suffix);
1743#else
1744        j = BIO_snprintf(buf[0], sizeof(buf[0]), "%s-%s", serialfile, suffix);
1745#endif
1746    }
1747#ifdef RL_DEBUG
1748    BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[0]);
1749#endif
1750    out = BIO_new(BIO_s_file());
1751    if (out == NULL) {
1752        ERR_print_errors(bio_err);
1753        goto err;
1754    }
1755    if (BIO_write_filename(out, buf[0]) <= 0) {
1756        perror(serialfile);
1757        goto err;
1758    }
1759
1760    if ((ai = BN_to_ASN1_INTEGER(serial, NULL)) == NULL) {
1761        BIO_printf(bio_err, "error converting serial to ASN.1 format\n");
1762        goto err;
1763    }
1764    i2a_ASN1_INTEGER(out, ai);
1765    BIO_puts(out, "\n");
1766    ret = 1;
1767    if (retai) {
1768        *retai = ai;
1769        ai = NULL;
1770    }
1771 err:
1772    if (out != NULL)
1773        BIO_free_all(out);
1774    if (ai != NULL)
1775        ASN1_INTEGER_free(ai);
1776    return (ret);
1777}
1778
1779int rotate_serial(char *serialfile, char *new_suffix, char *old_suffix)
1780{
1781    char buf[5][BSIZE];
1782    int i, j;
1783
1784    i = strlen(serialfile) + strlen(old_suffix);
1785    j = strlen(serialfile) + strlen(new_suffix);
1786    if (i > j)
1787        j = i;
1788    if (j + 1 >= BSIZE) {
1789        BIO_printf(bio_err, "file name too long\n");
1790        goto err;
1791    }
1792#ifndef OPENSSL_SYS_VMS
1793    j = BIO_snprintf(buf[0], sizeof(buf[0]), "%s.%s", serialfile, new_suffix);
1794#else
1795    j = BIO_snprintf(buf[0], sizeof(buf[0]), "%s-%s", serialfile, new_suffix);
1796#endif
1797#ifndef OPENSSL_SYS_VMS
1798    j = BIO_snprintf(buf[1], sizeof(buf[1]), "%s.%s", serialfile, old_suffix);
1799#else
1800    j = BIO_snprintf(buf[1], sizeof(buf[1]), "%s-%s", serialfile, old_suffix);
1801#endif
1802#ifdef RL_DEBUG
1803    BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1804               serialfile, buf[1]);
1805#endif
1806    if (rename(serialfile, buf[1]) < 0 && errno != ENOENT
1807#ifdef ENOTDIR
1808        && errno != ENOTDIR
1809#endif
1810        ) {
1811        BIO_printf(bio_err,
1812                   "unable to rename %s to %s\n", serialfile, buf[1]);
1813        perror("reason");
1814        goto err;
1815    }
1816#ifdef RL_DEBUG
1817    BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1818               buf[0], serialfile);
1819#endif
1820    if (rename(buf[0], serialfile) < 0) {
1821        BIO_printf(bio_err,
1822                   "unable to rename %s to %s\n", buf[0], serialfile);
1823        perror("reason");
1824        rename(buf[1], serialfile);
1825        goto err;
1826    }
1827    return 1;
1828 err:
1829    return 0;
1830}
1831
1832int rand_serial(BIGNUM *b, ASN1_INTEGER *ai)
1833{
1834    BIGNUM *btmp;
1835    int ret = 0;
1836    if (b)
1837        btmp = b;
1838    else
1839        btmp = BN_new();
1840
1841    if (!btmp)
1842        return 0;
1843
1844    if (!BN_pseudo_rand(btmp, SERIAL_RAND_BITS, 0, 0))
1845        goto error;
1846    if (ai && !BN_to_ASN1_INTEGER(btmp, ai))
1847        goto error;
1848
1849    ret = 1;
1850
1851 error:
1852
1853    if (!b)
1854        BN_free(btmp);
1855
1856    return ret;
1857}
1858
1859CA_DB *load_index(char *dbfile, DB_ATTR *db_attr)
1860{
1861    CA_DB *retdb = NULL;
1862    TXT_DB *tmpdb = NULL;
1863    BIO *in = BIO_new(BIO_s_file());
1864    CONF *dbattr_conf = NULL;
1865    char buf[1][BSIZE];
1866    long errorline = -1;
1867
1868    if (in == NULL) {
1869        ERR_print_errors(bio_err);
1870        goto err;
1871    }
1872    if (BIO_read_filename(in, dbfile) <= 0) {
1873        perror(dbfile);
1874        BIO_printf(bio_err, "unable to open '%s'\n", dbfile);
1875        goto err;
1876    }
1877    if ((tmpdb = TXT_DB_read(in, DB_NUMBER)) == NULL)
1878        goto err;
1879
1880#ifndef OPENSSL_SYS_VMS
1881    BIO_snprintf(buf[0], sizeof(buf[0]), "%s.attr", dbfile);
1882#else
1883    BIO_snprintf(buf[0], sizeof(buf[0]), "%s-attr", dbfile);
1884#endif
1885    dbattr_conf = NCONF_new(NULL);
1886    if (NCONF_load(dbattr_conf, buf[0], &errorline) <= 0) {
1887        if (errorline > 0) {
1888            BIO_printf(bio_err,
1889                       "error on line %ld of db attribute file '%s'\n",
1890                       errorline, buf[0]);
1891            goto err;
1892        } else {
1893            NCONF_free(dbattr_conf);
1894            dbattr_conf = NULL;
1895        }
1896    }
1897
1898    if ((retdb = OPENSSL_malloc(sizeof(CA_DB))) == NULL) {
1899        fprintf(stderr, "Out of memory\n");
1900        goto err;
1901    }
1902
1903    retdb->db = tmpdb;
1904    tmpdb = NULL;
1905    if (db_attr)
1906        retdb->attributes = *db_attr;
1907    else {
1908        retdb->attributes.unique_subject = 1;
1909    }
1910
1911    if (dbattr_conf) {
1912        char *p = NCONF_get_string(dbattr_conf, NULL, "unique_subject");
1913        if (p) {
1914#ifdef RL_DEBUG
1915            BIO_printf(bio_err,
1916                       "DEBUG[load_index]: unique_subject = \"%s\"\n", p);
1917#endif
1918            retdb->attributes.unique_subject = parse_yesno(p, 1);
1919        }
1920    }
1921
1922 err:
1923    if (dbattr_conf)
1924        NCONF_free(dbattr_conf);
1925    if (tmpdb)
1926        TXT_DB_free(tmpdb);
1927    if (in)
1928        BIO_free_all(in);
1929    return retdb;
1930}
1931
1932int index_index(CA_DB *db)
1933{
1934    if (!TXT_DB_create_index(db->db, DB_serial, NULL,
1935                             LHASH_HASH_FN(index_serial),
1936                             LHASH_COMP_FN(index_serial))) {
1937        BIO_printf(bio_err,
1938                   "error creating serial number index:(%ld,%ld,%ld)\n",
1939                   db->db->error, db->db->arg1, db->db->arg2);
1940        return 0;
1941    }
1942
1943    if (db->attributes.unique_subject
1944        && !TXT_DB_create_index(db->db, DB_name, index_name_qual,
1945                                LHASH_HASH_FN(index_name),
1946                                LHASH_COMP_FN(index_name))) {
1947        BIO_printf(bio_err, "error creating name index:(%ld,%ld,%ld)\n",
1948                   db->db->error, db->db->arg1, db->db->arg2);
1949        return 0;
1950    }
1951    return 1;
1952}
1953
1954int save_index(const char *dbfile, const char *suffix, CA_DB *db)
1955{
1956    char buf[3][BSIZE];
1957    BIO *out = BIO_new(BIO_s_file());
1958    int j;
1959
1960    if (out == NULL) {
1961        ERR_print_errors(bio_err);
1962        goto err;
1963    }
1964
1965    j = strlen(dbfile) + strlen(suffix);
1966    if (j + 6 >= BSIZE) {
1967        BIO_printf(bio_err, "file name too long\n");
1968        goto err;
1969    }
1970#ifndef OPENSSL_SYS_VMS
1971    j = BIO_snprintf(buf[2], sizeof(buf[2]), "%s.attr", dbfile);
1972#else
1973    j = BIO_snprintf(buf[2], sizeof(buf[2]), "%s-attr", dbfile);
1974#endif
1975#ifndef OPENSSL_SYS_VMS
1976    j = BIO_snprintf(buf[1], sizeof(buf[1]), "%s.attr.%s", dbfile, suffix);
1977#else
1978    j = BIO_snprintf(buf[1], sizeof(buf[1]), "%s-attr-%s", dbfile, suffix);
1979#endif
1980#ifndef OPENSSL_SYS_VMS
1981    j = BIO_snprintf(buf[0], sizeof(buf[0]), "%s.%s", dbfile, suffix);
1982#else
1983    j = BIO_snprintf(buf[0], sizeof(buf[0]), "%s-%s", dbfile, suffix);
1984#endif
1985#ifdef RL_DEBUG
1986    BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[0]);
1987#endif
1988    if (BIO_write_filename(out, buf[0]) <= 0) {
1989        perror(dbfile);
1990        BIO_printf(bio_err, "unable to open '%s'\n", dbfile);
1991        goto err;
1992    }
1993    j = TXT_DB_write(out, db->db);
1994    if (j <= 0)
1995        goto err;
1996
1997    BIO_free(out);
1998
1999    out = BIO_new(BIO_s_file());
2000#ifdef RL_DEBUG
2001    BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[1]);
2002#endif
2003    if (BIO_write_filename(out, buf[1]) <= 0) {
2004        perror(buf[2]);
2005        BIO_printf(bio_err, "unable to open '%s'\n", buf[2]);
2006        goto err;
2007    }
2008    BIO_printf(out, "unique_subject = %s\n",
2009               db->attributes.unique_subject ? "yes" : "no");
2010    BIO_free(out);
2011
2012    return 1;
2013 err:
2014    return 0;
2015}
2016
2017int rotate_index(const char *dbfile, const char *new_suffix,
2018                 const char *old_suffix)
2019{
2020    char buf[5][BSIZE];
2021    int i, j;
2022
2023    i = strlen(dbfile) + strlen(old_suffix);
2024    j = strlen(dbfile) + strlen(new_suffix);
2025    if (i > j)
2026        j = i;
2027    if (j + 6 >= BSIZE) {
2028        BIO_printf(bio_err, "file name too long\n");
2029        goto err;
2030    }
2031#ifndef OPENSSL_SYS_VMS
2032    j = BIO_snprintf(buf[4], sizeof(buf[4]), "%s.attr", dbfile);
2033#else
2034    j = BIO_snprintf(buf[4], sizeof(buf[4]), "%s-attr", dbfile);
2035#endif
2036#ifndef OPENSSL_SYS_VMS
2037    j = BIO_snprintf(buf[2], sizeof(buf[2]), "%s.attr.%s", dbfile, new_suffix);
2038#else
2039    j = BIO_snprintf(buf[2], sizeof(buf[2]), "%s-attr-%s", dbfile, new_suffix);
2040#endif
2041#ifndef OPENSSL_SYS_VMS
2042    j = BIO_snprintf(buf[0], sizeof(buf[0]), "%s.%s", dbfile, new_suffix);
2043#else
2044    j = BIO_snprintf(buf[0], sizeof(buf[0]), "%s-%s", dbfile, new_suffix);
2045#endif
2046#ifndef OPENSSL_SYS_VMS
2047    j = BIO_snprintf(buf[1], sizeof(buf[1]), "%s.%s", dbfile, old_suffix);
2048#else
2049    j = BIO_snprintf(buf[1], sizeof(buf[1]), "%s-%s", dbfile, old_suffix);
2050#endif
2051#ifndef OPENSSL_SYS_VMS
2052    j = BIO_snprintf(buf[3], sizeof(buf[3]), "%s.attr.%s", dbfile, old_suffix);
2053#else
2054    j = BIO_snprintf(buf[3], sizeof(buf[3]), "%s-attr-%s", dbfile, old_suffix);
2055#endif
2056#ifdef RL_DEBUG
2057    BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n", dbfile, buf[1]);
2058#endif
2059    if (rename(dbfile, buf[1]) < 0 && errno != ENOENT
2060#ifdef ENOTDIR
2061        && errno != ENOTDIR
2062#endif
2063        ) {
2064        BIO_printf(bio_err, "unable to rename %s to %s\n", dbfile, buf[1]);
2065        perror("reason");
2066        goto err;
2067    }
2068#ifdef RL_DEBUG
2069    BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n", buf[0], dbfile);
2070#endif
2071    if (rename(buf[0], dbfile) < 0) {
2072        BIO_printf(bio_err, "unable to rename %s to %s\n", buf[0], dbfile);
2073        perror("reason");
2074        rename(buf[1], dbfile);
2075        goto err;
2076    }
2077#ifdef RL_DEBUG
2078    BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n", buf[4], buf[3]);
2079#endif
2080    if (rename(buf[4], buf[3]) < 0 && errno != ENOENT
2081#ifdef ENOTDIR
2082        && errno != ENOTDIR
2083#endif
2084        ) {
2085        BIO_printf(bio_err, "unable to rename %s to %s\n", buf[4], buf[3]);
2086        perror("reason");
2087        rename(dbfile, buf[0]);
2088        rename(buf[1], dbfile);
2089        goto err;
2090    }
2091#ifdef RL_DEBUG
2092    BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n", buf[2], buf[4]);
2093#endif
2094    if (rename(buf[2], buf[4]) < 0) {
2095        BIO_printf(bio_err, "unable to rename %s to %s\n", buf[2], buf[4]);
2096        perror("reason");
2097        rename(buf[3], buf[4]);
2098        rename(dbfile, buf[0]);
2099        rename(buf[1], dbfile);
2100        goto err;
2101    }
2102    return 1;
2103 err:
2104    return 0;
2105}
2106
2107void free_index(CA_DB *db)
2108{
2109    if (db) {
2110        if (db->db)
2111            TXT_DB_free(db->db);
2112        OPENSSL_free(db);
2113    }
2114}
2115
2116int parse_yesno(const char *str, int def)
2117{
2118    int ret = def;
2119    if (str) {
2120        switch (*str) {
2121        case 'f':              /* false */
2122        case 'F':              /* FALSE */
2123        case 'n':              /* no */
2124        case 'N':              /* NO */
2125        case '0':              /* 0 */
2126            ret = 0;
2127            break;
2128        case 't':              /* true */
2129        case 'T':              /* TRUE */
2130        case 'y':              /* yes */
2131        case 'Y':              /* YES */
2132        case '1':              /* 1 */
2133            ret = 1;
2134            break;
2135        default:
2136            ret = def;
2137            break;
2138        }
2139    }
2140    return ret;
2141}
2142
2143/*
2144 * subject is expected to be in the format /type0=value0/type1=value1/type2=...
2145 * where characters may be escaped by \
2146 */
2147X509_NAME *parse_name(char *subject, long chtype, int multirdn)
2148{
2149    size_t buflen = strlen(subject) + 1; /* to copy the types and values
2150                                          * into. due to escaping, the copy
2151                                          * can only become shorter */
2152    char *buf = OPENSSL_malloc(buflen);
2153    size_t max_ne = buflen / 2 + 1; /* maximum number of name elements */
2154    char **ne_types = OPENSSL_malloc(max_ne * sizeof(char *));
2155    char **ne_values = OPENSSL_malloc(max_ne * sizeof(char *));
2156    int *mval = OPENSSL_malloc(max_ne * sizeof(int));
2157
2158    char *sp = subject, *bp = buf;
2159    int i, ne_num = 0;
2160
2161    X509_NAME *n = NULL;
2162    int nid;
2163
2164    if (!buf || !ne_types || !ne_values || !mval) {
2165        BIO_printf(bio_err, "malloc error\n");
2166        goto error;
2167    }
2168
2169    if (*subject != '/') {
2170        BIO_printf(bio_err, "Subject does not start with '/'.\n");
2171        goto error;
2172    }
2173    sp++;                       /* skip leading / */
2174
2175    /* no multivalued RDN by default */
2176    mval[ne_num] = 0;
2177
2178    while (*sp) {
2179        /* collect type */
2180        ne_types[ne_num] = bp;
2181        while (*sp) {
2182            if (*sp == '\\') {  /* is there anything to escape in the
2183                                 * type...? */
2184                if (*++sp)
2185                    *bp++ = *sp++;
2186                else {
2187                    BIO_printf(bio_err,
2188                               "escape character at end of string\n");
2189                    goto error;
2190                }
2191            } else if (*sp == '=') {
2192                sp++;
2193                *bp++ = '\0';
2194                break;
2195            } else
2196                *bp++ = *sp++;
2197        }
2198        if (!*sp) {
2199            BIO_printf(bio_err,
2200                       "end of string encountered while processing type of subject name element #%d\n",
2201                       ne_num);
2202            goto error;
2203        }
2204        ne_values[ne_num] = bp;
2205        while (*sp) {
2206            if (*sp == '\\') {
2207                if (*++sp)
2208                    *bp++ = *sp++;
2209                else {
2210                    BIO_printf(bio_err,
2211                               "escape character at end of string\n");
2212                    goto error;
2213                }
2214            } else if (*sp == '/') {
2215                sp++;
2216                /* no multivalued RDN by default */
2217                mval[ne_num + 1] = 0;
2218                break;
2219            } else if (*sp == '+' && multirdn) {
2220                /*
2221                 * a not escaped + signals a mutlivalued RDN
2222                 */
2223                sp++;
2224                mval[ne_num + 1] = -1;
2225                break;
2226            } else
2227                *bp++ = *sp++;
2228        }
2229        *bp++ = '\0';
2230        ne_num++;
2231    }
2232
2233    if (!(n = X509_NAME_new()))
2234        goto error;
2235
2236    for (i = 0; i < ne_num; i++) {
2237        if ((nid = OBJ_txt2nid(ne_types[i])) == NID_undef) {
2238            BIO_printf(bio_err,
2239                       "Subject Attribute %s has no known NID, skipped\n",
2240                       ne_types[i]);
2241            continue;
2242        }
2243
2244        if (!*ne_values[i]) {
2245            BIO_printf(bio_err,
2246                       "No value provided for Subject Attribute %s, skipped\n",
2247                       ne_types[i]);
2248            continue;
2249        }
2250
2251        if (!X509_NAME_add_entry_by_NID
2252            (n, nid, chtype, (unsigned char *)ne_values[i], -1, -1, mval[i]))
2253            goto error;
2254    }
2255
2256    OPENSSL_free(ne_values);
2257    OPENSSL_free(ne_types);
2258    OPENSSL_free(buf);
2259    OPENSSL_free(mval);
2260    return n;
2261
2262 error:
2263    X509_NAME_free(n);
2264    if (ne_values)
2265        OPENSSL_free(ne_values);
2266    if (ne_types)
2267        OPENSSL_free(ne_types);
2268    if (mval)
2269        OPENSSL_free(mval);
2270    if (buf)
2271        OPENSSL_free(buf);
2272    return NULL;
2273}
2274
2275int args_verify(char ***pargs, int *pargc,
2276                int *badarg, BIO *err, X509_VERIFY_PARAM **pm)
2277{
2278    ASN1_OBJECT *otmp = NULL;
2279    unsigned long flags = 0;
2280    int i;
2281    int purpose = 0, depth = -1;
2282    char **oldargs = *pargs;
2283    char *arg = **pargs, *argn = (*pargs)[1];
2284    time_t at_time = 0;
2285    char *hostname = NULL;
2286    char *email = NULL;
2287    char *ipasc = NULL;
2288    if (!strcmp(arg, "-policy")) {
2289        if (!argn)
2290            *badarg = 1;
2291        else {
2292            otmp = OBJ_txt2obj(argn, 0);
2293            if (!otmp) {
2294                BIO_printf(err, "Invalid Policy \"%s\"\n", argn);
2295                *badarg = 1;
2296            }
2297        }
2298        (*pargs)++;
2299    } else if (strcmp(arg, "-purpose") == 0) {
2300        X509_PURPOSE *xptmp;
2301        if (!argn)
2302            *badarg = 1;
2303        else {
2304            i = X509_PURPOSE_get_by_sname(argn);
2305            if (i < 0) {
2306                BIO_printf(err, "unrecognized purpose\n");
2307                *badarg = 1;
2308            } else {
2309                xptmp = X509_PURPOSE_get0(i);
2310                purpose = X509_PURPOSE_get_id(xptmp);
2311            }
2312        }
2313        (*pargs)++;
2314    } else if (strcmp(arg, "-verify_depth") == 0) {
2315        if (!argn)
2316            *badarg = 1;
2317        else {
2318            depth = atoi(argn);
2319            if (depth < 0) {
2320                BIO_printf(err, "invalid depth\n");
2321                *badarg = 1;
2322            }
2323        }
2324        (*pargs)++;
2325    } else if (strcmp(arg, "-attime") == 0) {
2326        if (!argn)
2327            *badarg = 1;
2328        else {
2329            long timestamp;
2330            /*
2331             * interpret the -attime argument as seconds since Epoch
2332             */
2333            if (sscanf(argn, "%li", &timestamp) != 1) {
2334                BIO_printf(bio_err, "Error parsing timestamp %s\n", argn);
2335                *badarg = 1;
2336            }
2337            /* on some platforms time_t may be a float */
2338            at_time = (time_t)timestamp;
2339        }
2340        (*pargs)++;
2341    } else if (strcmp(arg, "-verify_hostname") == 0) {
2342        if (!argn)
2343            *badarg = 1;
2344        hostname = argn;
2345        (*pargs)++;
2346    } else if (strcmp(arg, "-verify_email") == 0) {
2347        if (!argn)
2348            *badarg = 1;
2349        email = argn;
2350        (*pargs)++;
2351    } else if (strcmp(arg, "-verify_ip") == 0) {
2352        if (!argn)
2353            *badarg = 1;
2354        ipasc = argn;
2355        (*pargs)++;
2356    } else if (!strcmp(arg, "-ignore_critical"))
2357        flags |= X509_V_FLAG_IGNORE_CRITICAL;
2358    else if (!strcmp(arg, "-issuer_checks"))
2359        flags |= X509_V_FLAG_CB_ISSUER_CHECK;
2360    else if (!strcmp(arg, "-crl_check"))
2361        flags |= X509_V_FLAG_CRL_CHECK;
2362    else if (!strcmp(arg, "-crl_check_all"))
2363        flags |= X509_V_FLAG_CRL_CHECK | X509_V_FLAG_CRL_CHECK_ALL;
2364    else if (!strcmp(arg, "-policy_check"))
2365        flags |= X509_V_FLAG_POLICY_CHECK;
2366    else if (!strcmp(arg, "-explicit_policy"))
2367        flags |= X509_V_FLAG_EXPLICIT_POLICY;
2368    else if (!strcmp(arg, "-inhibit_any"))
2369        flags |= X509_V_FLAG_INHIBIT_ANY;
2370    else if (!strcmp(arg, "-inhibit_map"))
2371        flags |= X509_V_FLAG_INHIBIT_MAP;
2372    else if (!strcmp(arg, "-x509_strict"))
2373        flags |= X509_V_FLAG_X509_STRICT;
2374    else if (!strcmp(arg, "-extended_crl"))
2375        flags |= X509_V_FLAG_EXTENDED_CRL_SUPPORT;
2376    else if (!strcmp(arg, "-use_deltas"))
2377        flags |= X509_V_FLAG_USE_DELTAS;
2378    else if (!strcmp(arg, "-policy_print"))
2379        flags |= X509_V_FLAG_NOTIFY_POLICY;
2380    else if (!strcmp(arg, "-check_ss_sig"))
2381        flags |= X509_V_FLAG_CHECK_SS_SIGNATURE;
2382    else if (!strcmp(arg, "-trusted_first"))
2383        flags |= X509_V_FLAG_TRUSTED_FIRST;
2384    else if (!strcmp(arg, "-suiteB_128_only"))
2385        flags |= X509_V_FLAG_SUITEB_128_LOS_ONLY;
2386    else if (!strcmp(arg, "-suiteB_128"))
2387        flags |= X509_V_FLAG_SUITEB_128_LOS;
2388    else if (!strcmp(arg, "-suiteB_192"))
2389        flags |= X509_V_FLAG_SUITEB_192_LOS;
2390    else if (!strcmp(arg, "-partial_chain"))
2391        flags |= X509_V_FLAG_PARTIAL_CHAIN;
2392    else if (!strcmp(arg, "-no_alt_chains"))
2393        flags |= X509_V_FLAG_NO_ALT_CHAINS;
2394    else if (!strcmp(arg, "-allow_proxy_certs"))
2395        flags |= X509_V_FLAG_ALLOW_PROXY_CERTS;
2396    else
2397        return 0;
2398
2399    if (*badarg) {
2400        if (*pm)
2401            X509_VERIFY_PARAM_free(*pm);
2402        *pm = NULL;
2403        goto end;
2404    }
2405
2406    if (!*pm && !(*pm = X509_VERIFY_PARAM_new())) {
2407        *badarg = 1;
2408        goto end;
2409    }
2410
2411    if (otmp)
2412        X509_VERIFY_PARAM_add0_policy(*pm, otmp);
2413    if (flags)
2414        X509_VERIFY_PARAM_set_flags(*pm, flags);
2415
2416    if (purpose)
2417        X509_VERIFY_PARAM_set_purpose(*pm, purpose);
2418
2419    if (depth >= 0)
2420        X509_VERIFY_PARAM_set_depth(*pm, depth);
2421
2422    if (at_time)
2423        X509_VERIFY_PARAM_set_time(*pm, at_time);
2424
2425    if (hostname && !X509_VERIFY_PARAM_set1_host(*pm, hostname, 0))
2426        *badarg = 1;
2427
2428    if (email && !X509_VERIFY_PARAM_set1_email(*pm, email, 0))
2429        *badarg = 1;
2430
2431    if (ipasc && !X509_VERIFY_PARAM_set1_ip_asc(*pm, ipasc))
2432        *badarg = 1;
2433
2434 end:
2435
2436    (*pargs)++;
2437
2438    if (pargc)
2439        *pargc -= *pargs - oldargs;
2440
2441    return 1;
2442
2443}
2444
2445/*
2446 * Read whole contents of a BIO into an allocated memory buffer and return
2447 * it.
2448 */
2449
2450int bio_to_mem(unsigned char **out, int maxlen, BIO *in)
2451{
2452    BIO *mem;
2453    int len, ret;
2454    unsigned char tbuf[1024];
2455    mem = BIO_new(BIO_s_mem());
2456    if (!mem)
2457        return -1;
2458    for (;;) {
2459        if ((maxlen != -1) && maxlen < 1024)
2460            len = maxlen;
2461        else
2462            len = 1024;
2463        len = BIO_read(in, tbuf, len);
2464        if (len < 0) {
2465            BIO_free(mem);
2466            return -1;
2467        }
2468        if (len == 0)
2469            break;
2470        if (BIO_write(mem, tbuf, len) != len) {
2471            BIO_free(mem);
2472            return -1;
2473        }
2474        maxlen -= len;
2475
2476        if (maxlen == 0)
2477            break;
2478    }
2479    ret = BIO_get_mem_data(mem, (char **)out);
2480    BIO_set_flags(mem, BIO_FLAGS_MEM_RDONLY);
2481    BIO_free(mem);
2482    return ret;
2483}
2484
2485int pkey_ctrl_string(EVP_PKEY_CTX *ctx, const char *value)
2486{
2487    int rv;
2488    char *stmp, *vtmp = NULL;
2489    stmp = BUF_strdup(value);
2490    if (!stmp)
2491        return -1;
2492    vtmp = strchr(stmp, ':');
2493    if (vtmp) {
2494        *vtmp = 0;
2495        vtmp++;
2496    }
2497    rv = EVP_PKEY_CTX_ctrl_str(ctx, stmp, vtmp);
2498    OPENSSL_free(stmp);
2499    return rv;
2500}
2501
2502static void nodes_print(BIO *out, const char *name,
2503                        STACK_OF(X509_POLICY_NODE) *nodes)
2504{
2505    X509_POLICY_NODE *node;
2506    int i;
2507    BIO_printf(out, "%s Policies:", name);
2508    if (nodes) {
2509        BIO_puts(out, "\n");
2510        for (i = 0; i < sk_X509_POLICY_NODE_num(nodes); i++) {
2511            node = sk_X509_POLICY_NODE_value(nodes, i);
2512            X509_POLICY_NODE_print(out, node, 2);
2513        }
2514    } else
2515        BIO_puts(out, " <empty>\n");
2516}
2517
2518void policies_print(BIO *out, X509_STORE_CTX *ctx)
2519{
2520    X509_POLICY_TREE *tree;
2521    int explicit_policy;
2522    int free_out = 0;
2523    if (out == NULL) {
2524        out = BIO_new_fp(stderr, BIO_NOCLOSE);
2525        free_out = 1;
2526    }
2527    tree = X509_STORE_CTX_get0_policy_tree(ctx);
2528    explicit_policy = X509_STORE_CTX_get_explicit_policy(ctx);
2529
2530    BIO_printf(out, "Require explicit Policy: %s\n",
2531               explicit_policy ? "True" : "False");
2532
2533    nodes_print(out, "Authority", X509_policy_tree_get0_policies(tree));
2534    nodes_print(out, "User", X509_policy_tree_get0_user_policies(tree));
2535    if (free_out)
2536        BIO_free(out);
2537}
2538
2539#if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
2540
2541static JPAKE_CTX *jpake_init(const char *us, const char *them,
2542                             const char *secret)
2543{
2544    BIGNUM *p = NULL;
2545    BIGNUM *g = NULL;
2546    BIGNUM *q = NULL;
2547    BIGNUM *bnsecret = BN_new();
2548    JPAKE_CTX *ctx;
2549
2550    /* Use a safe prime for p (that we found earlier) */
2551    BN_hex2bn(&p,
2552              "F9E5B365665EA7A05A9C534502780FEE6F1AB5BD4F49947FD036DBD7E905269AF46EF28B0FC07487EE4F5D20FB3C0AF8E700F3A2FA3414970CBED44FEDFF80CE78D800F184BB82435D137AADA2C6C16523247930A63B85661D1FC817A51ACD96168E95898A1F83A79FFB529368AA7833ABD1B0C3AEDDB14D2E1A2F71D99F763F");
2553    g = BN_new();
2554    BN_set_word(g, 2);
2555    q = BN_new();
2556    BN_rshift1(q, p);
2557
2558    BN_bin2bn((const unsigned char *)secret, strlen(secret), bnsecret);
2559
2560    ctx = JPAKE_CTX_new(us, them, p, g, q, bnsecret);
2561    BN_free(bnsecret);
2562    BN_free(q);
2563    BN_free(g);
2564    BN_free(p);
2565
2566    return ctx;
2567}
2568
2569static void jpake_send_part(BIO *conn, const JPAKE_STEP_PART *p)
2570{
2571    BN_print(conn, p->gx);
2572    BIO_puts(conn, "\n");
2573    BN_print(conn, p->zkpx.gr);
2574    BIO_puts(conn, "\n");
2575    BN_print(conn, p->zkpx.b);
2576    BIO_puts(conn, "\n");
2577}
2578
2579static void jpake_send_step1(BIO *bconn, JPAKE_CTX *ctx)
2580{
2581    JPAKE_STEP1 s1;
2582
2583    JPAKE_STEP1_init(&s1);
2584    JPAKE_STEP1_generate(&s1, ctx);
2585    jpake_send_part(bconn, &s1.p1);
2586    jpake_send_part(bconn, &s1.p2);
2587    (void)BIO_flush(bconn);
2588    JPAKE_STEP1_release(&s1);
2589}
2590
2591static void jpake_send_step2(BIO *bconn, JPAKE_CTX *ctx)
2592{
2593    JPAKE_STEP2 s2;
2594
2595    JPAKE_STEP2_init(&s2);
2596    JPAKE_STEP2_generate(&s2, ctx);
2597    jpake_send_part(bconn, &s2);
2598    (void)BIO_flush(bconn);
2599    JPAKE_STEP2_release(&s2);
2600}
2601
2602static void jpake_send_step3a(BIO *bconn, JPAKE_CTX *ctx)
2603{
2604    JPAKE_STEP3A s3a;
2605
2606    JPAKE_STEP3A_init(&s3a);
2607    JPAKE_STEP3A_generate(&s3a, ctx);
2608    BIO_write(bconn, s3a.hhk, sizeof(s3a.hhk));
2609    (void)BIO_flush(bconn);
2610    JPAKE_STEP3A_release(&s3a);
2611}
2612
2613static void jpake_send_step3b(BIO *bconn, JPAKE_CTX *ctx)
2614{
2615    JPAKE_STEP3B s3b;
2616
2617    JPAKE_STEP3B_init(&s3b);
2618    JPAKE_STEP3B_generate(&s3b, ctx);
2619    BIO_write(bconn, s3b.hk, sizeof(s3b.hk));
2620    (void)BIO_flush(bconn);
2621    JPAKE_STEP3B_release(&s3b);
2622}
2623
2624static void readbn(BIGNUM **bn, BIO *bconn)
2625{
2626    char buf[10240];
2627    int l;
2628
2629    l = BIO_gets(bconn, buf, sizeof(buf));
2630    assert(l > 0);
2631    assert(buf[l - 1] == '\n');
2632    buf[l - 1] = '\0';
2633    BN_hex2bn(bn, buf);
2634}
2635
2636static void jpake_receive_part(JPAKE_STEP_PART *p, BIO *bconn)
2637{
2638    readbn(&p->gx, bconn);
2639    readbn(&p->zkpx.gr, bconn);
2640    readbn(&p->zkpx.b, bconn);
2641}
2642
2643static void jpake_receive_step1(JPAKE_CTX *ctx, BIO *bconn)
2644{
2645    JPAKE_STEP1 s1;
2646
2647    JPAKE_STEP1_init(&s1);
2648    jpake_receive_part(&s1.p1, bconn);
2649    jpake_receive_part(&s1.p2, bconn);
2650    if (!JPAKE_STEP1_process(ctx, &s1)) {
2651        ERR_print_errors(bio_err);
2652        exit(1);
2653    }
2654    JPAKE_STEP1_release(&s1);
2655}
2656
2657static void jpake_receive_step2(JPAKE_CTX *ctx, BIO *bconn)
2658{
2659    JPAKE_STEP2 s2;
2660
2661    JPAKE_STEP2_init(&s2);
2662    jpake_receive_part(&s2, bconn);
2663    if (!JPAKE_STEP2_process(ctx, &s2)) {
2664        ERR_print_errors(bio_err);
2665        exit(1);
2666    }
2667    JPAKE_STEP2_release(&s2);
2668}
2669
2670static void jpake_receive_step3a(JPAKE_CTX *ctx, BIO *bconn)
2671{
2672    JPAKE_STEP3A s3a;
2673    int l;
2674
2675    JPAKE_STEP3A_init(&s3a);
2676    l = BIO_read(bconn, s3a.hhk, sizeof(s3a.hhk));
2677    assert(l == sizeof(s3a.hhk));
2678    if (!JPAKE_STEP3A_process(ctx, &s3a)) {
2679        ERR_print_errors(bio_err);
2680        exit(1);
2681    }
2682    JPAKE_STEP3A_release(&s3a);
2683}
2684
2685static void jpake_receive_step3b(JPAKE_CTX *ctx, BIO *bconn)
2686{
2687    JPAKE_STEP3B s3b;
2688    int l;
2689
2690    JPAKE_STEP3B_init(&s3b);
2691    l = BIO_read(bconn, s3b.hk, sizeof(s3b.hk));
2692    assert(l == sizeof(s3b.hk));
2693    if (!JPAKE_STEP3B_process(ctx, &s3b)) {
2694        ERR_print_errors(bio_err);
2695        exit(1);
2696    }
2697    JPAKE_STEP3B_release(&s3b);
2698}
2699
2700void jpake_client_auth(BIO *out, BIO *conn, const char *secret)
2701{
2702    JPAKE_CTX *ctx;
2703    BIO *bconn;
2704
2705    BIO_puts(out, "Authenticating with JPAKE\n");
2706
2707    ctx = jpake_init("client", "server", secret);
2708
2709    bconn = BIO_new(BIO_f_buffer());
2710    BIO_push(bconn, conn);
2711
2712    jpake_send_step1(bconn, ctx);
2713    jpake_receive_step1(ctx, bconn);
2714    jpake_send_step2(bconn, ctx);
2715    jpake_receive_step2(ctx, bconn);
2716    jpake_send_step3a(bconn, ctx);
2717    jpake_receive_step3b(ctx, bconn);
2718
2719    BIO_puts(out, "JPAKE authentication succeeded, setting PSK\n");
2720
2721    if (psk_key)
2722        OPENSSL_free(psk_key);
2723
2724    psk_key = BN_bn2hex(JPAKE_get_shared_key(ctx));
2725
2726    BIO_pop(bconn);
2727    BIO_free(bconn);
2728
2729    JPAKE_CTX_free(ctx);
2730}
2731
2732void jpake_server_auth(BIO *out, BIO *conn, const char *secret)
2733{
2734    JPAKE_CTX *ctx;
2735    BIO *bconn;
2736
2737    BIO_puts(out, "Authenticating with JPAKE\n");
2738
2739    ctx = jpake_init("server", "client", secret);
2740
2741    bconn = BIO_new(BIO_f_buffer());
2742    BIO_push(bconn, conn);
2743
2744    jpake_receive_step1(ctx, bconn);
2745    jpake_send_step1(bconn, ctx);
2746    jpake_receive_step2(ctx, bconn);
2747    jpake_send_step2(bconn, ctx);
2748    jpake_receive_step3a(ctx, bconn);
2749    jpake_send_step3b(bconn, ctx);
2750
2751    BIO_puts(out, "JPAKE authentication succeeded, setting PSK\n");
2752
2753    if (psk_key)
2754        OPENSSL_free(psk_key);
2755
2756    psk_key = BN_bn2hex(JPAKE_get_shared_key(ctx));
2757
2758    BIO_pop(bconn);
2759    BIO_free(bconn);
2760
2761    JPAKE_CTX_free(ctx);
2762}
2763
2764#endif
2765
2766#ifndef OPENSSL_NO_TLSEXT
2767/*-
2768 * next_protos_parse parses a comma separated list of strings into a string
2769 * in a format suitable for passing to SSL_CTX_set_next_protos_advertised.
2770 *   outlen: (output) set to the length of the resulting buffer on success.
2771 *   err: (maybe NULL) on failure, an error message line is written to this BIO.
2772 *   in: a NUL termianted string like "abc,def,ghi"
2773 *
2774 *   returns: a malloced buffer or NULL on failure.
2775 */
2776unsigned char *next_protos_parse(unsigned short *outlen, const char *in)
2777{
2778    size_t len;
2779    unsigned char *out;
2780    size_t i, start = 0;
2781
2782    len = strlen(in);
2783    if (len >= 65535)
2784        return NULL;
2785
2786    out = OPENSSL_malloc(strlen(in) + 1);
2787    if (!out)
2788        return NULL;
2789
2790    for (i = 0; i <= len; ++i) {
2791        if (i == len || in[i] == ',') {
2792            if (i - start > 255) {
2793                OPENSSL_free(out);
2794                return NULL;
2795            }
2796            out[start] = (unsigned char)(i - start);
2797            start = i + 1;
2798        } else
2799            out[i + 1] = in[i];
2800    }
2801
2802    *outlen = (unsigned char)(len + 1);
2803    return out;
2804}
2805#endif                          /* ndef OPENSSL_NO_TLSEXT */
2806
2807void print_cert_checks(BIO *bio, X509 *x,
2808                       const char *checkhost,
2809                       const char *checkemail, const char *checkip)
2810{
2811    if (x == NULL)
2812        return;
2813    if (checkhost) {
2814        BIO_printf(bio, "Hostname %s does%s match certificate\n",
2815                   checkhost, X509_check_host(x, checkhost, 0, 0, NULL) == 1
2816                   ? "" : " NOT");
2817    }
2818
2819    if (checkemail) {
2820        BIO_printf(bio, "Email %s does%s match certificate\n",
2821                   checkemail, X509_check_email(x, checkemail, 0,
2822                                                0) ? "" : " NOT");
2823    }
2824
2825    if (checkip) {
2826        BIO_printf(bio, "IP %s does%s match certificate\n",
2827                   checkip, X509_check_ip_asc(x, checkip, 0) ? "" : " NOT");
2828    }
2829}
2830
2831/* Get first http URL from a DIST_POINT structure */
2832
2833static const char *get_dp_url(DIST_POINT *dp)
2834{
2835    GENERAL_NAMES *gens;
2836    GENERAL_NAME *gen;
2837    int i, gtype;
2838    ASN1_STRING *uri;
2839    if (!dp->distpoint || dp->distpoint->type != 0)
2840        return NULL;
2841    gens = dp->distpoint->name.fullname;
2842    for (i = 0; i < sk_GENERAL_NAME_num(gens); i++) {
2843        gen = sk_GENERAL_NAME_value(gens, i);
2844        uri = GENERAL_NAME_get0_value(gen, &gtype);
2845        if (gtype == GEN_URI && ASN1_STRING_length(uri) > 6) {
2846            char *uptr = (char *)ASN1_STRING_data(uri);
2847            if (!strncmp(uptr, "http://", 7))
2848                return uptr;
2849        }
2850    }
2851    return NULL;
2852}
2853
2854/*
2855 * Look through a CRLDP structure and attempt to find an http URL to
2856 * downloads a CRL from.
2857 */
2858
2859static X509_CRL *load_crl_crldp(STACK_OF(DIST_POINT) *crldp)
2860{
2861    int i;
2862    const char *urlptr = NULL;
2863    for (i = 0; i < sk_DIST_POINT_num(crldp); i++) {
2864        DIST_POINT *dp = sk_DIST_POINT_value(crldp, i);
2865        urlptr = get_dp_url(dp);
2866        if (urlptr)
2867            return load_crl(urlptr, FORMAT_HTTP);
2868    }
2869    return NULL;
2870}
2871
2872/*
2873 * Example of downloading CRLs from CRLDP: not usable for real world as it
2874 * always downloads, doesn't support non-blocking I/O and doesn't cache
2875 * anything.
2876 */
2877
2878static STACK_OF(X509_CRL) *crls_http_cb(X509_STORE_CTX *ctx, X509_NAME *nm)
2879{
2880    X509 *x;
2881    STACK_OF(X509_CRL) *crls = NULL;
2882    X509_CRL *crl;
2883    STACK_OF(DIST_POINT) *crldp;
2884    x = X509_STORE_CTX_get_current_cert(ctx);
2885    crldp = X509_get_ext_d2i(x, NID_crl_distribution_points, NULL, NULL);
2886    crl = load_crl_crldp(crldp);
2887    sk_DIST_POINT_pop_free(crldp, DIST_POINT_free);
2888    if (!crl)
2889        return NULL;
2890    crls = sk_X509_CRL_new_null();
2891    sk_X509_CRL_push(crls, crl);
2892    /* Try to download delta CRL */
2893    crldp = X509_get_ext_d2i(x, NID_freshest_crl, NULL, NULL);
2894    crl = load_crl_crldp(crldp);
2895    sk_DIST_POINT_pop_free(crldp, DIST_POINT_free);
2896    if (crl)
2897        sk_X509_CRL_push(crls, crl);
2898    return crls;
2899}
2900
2901void store_setup_crl_download(X509_STORE *st)
2902{
2903    X509_STORE_set_lookup_crls_cb(st, crls_http_cb);
2904}
2905
2906/*
2907 * Platform-specific sections
2908 */
2909#if defined(_WIN32)
2910# ifdef fileno
2911#  undef fileno
2912#  define fileno(a) (int)_fileno(a)
2913# endif
2914
2915# include <windows.h>
2916# include <tchar.h>
2917
2918static int WIN32_rename(const char *from, const char *to)
2919{
2920    TCHAR *tfrom = NULL, *tto;
2921    DWORD err;
2922    int ret = 0;
2923
2924    if (sizeof(TCHAR) == 1) {
2925        tfrom = (TCHAR *)from;
2926        tto = (TCHAR *)to;
2927    } else {                    /* UNICODE path */
2928
2929        size_t i, flen = strlen(from) + 1, tlen = strlen(to) + 1;
2930        tfrom = (TCHAR *)malloc(sizeof(TCHAR) * (flen + tlen));
2931        if (tfrom == NULL)
2932            goto err;
2933        tto = tfrom + flen;
2934# if !defined(_WIN32_WCE) || _WIN32_WCE>=101
2935        if (!MultiByteToWideChar(CP_ACP, 0, from, flen, (WCHAR *)tfrom, flen))
2936# endif
2937            for (i = 0; i < flen; i++)
2938                tfrom[i] = (TCHAR)from[i];
2939# if !defined(_WIN32_WCE) || _WIN32_WCE>=101
2940        if (!MultiByteToWideChar(CP_ACP, 0, to, tlen, (WCHAR *)tto, tlen))
2941# endif
2942            for (i = 0; i < tlen; i++)
2943                tto[i] = (TCHAR)to[i];
2944    }
2945
2946    if (MoveFile(tfrom, tto))
2947        goto ok;
2948    err = GetLastError();
2949    if (err == ERROR_ALREADY_EXISTS || err == ERROR_FILE_EXISTS) {
2950        if (DeleteFile(tto) && MoveFile(tfrom, tto))
2951            goto ok;
2952        err = GetLastError();
2953    }
2954    if (err == ERROR_FILE_NOT_FOUND || err == ERROR_PATH_NOT_FOUND)
2955        errno = ENOENT;
2956    else if (err == ERROR_ACCESS_DENIED)
2957        errno = EACCES;
2958    else
2959        errno = EINVAL;         /* we could map more codes... */
2960 err:
2961    ret = -1;
2962 ok:
2963    if (tfrom != NULL && tfrom != (TCHAR *)from)
2964        free(tfrom);
2965    return ret;
2966}
2967#endif
2968
2969/* app_tminterval section */
2970#if defined(_WIN32)
2971double app_tminterval(int stop, int usertime)
2972{
2973    FILETIME now;
2974    double ret = 0;
2975    static ULARGE_INTEGER tmstart;
2976    static int warning = 1;
2977# ifdef _WIN32_WINNT
2978    static HANDLE proc = NULL;
2979
2980    if (proc == NULL) {
2981        if (check_winnt())
2982            proc = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE,
2983                               GetCurrentProcessId());
2984        if (proc == NULL)
2985            proc = (HANDLE) - 1;
2986    }
2987
2988    if (usertime && proc != (HANDLE) - 1) {
2989        FILETIME junk;
2990        GetProcessTimes(proc, &junk, &junk, &junk, &now);
2991    } else
2992# endif
2993    {
2994        SYSTEMTIME systime;
2995
2996        if (usertime && warning) {
2997            BIO_printf(bio_err, "To get meaningful results, run "
2998                       "this program on idle system.\n");
2999            warning = 0;
3000        }
3001        GetSystemTime(&systime);
3002        SystemTimeToFileTime(&systime, &now);
3003    }
3004
3005    if (stop == TM_START) {
3006        tmstart.u.LowPart = now.dwLowDateTime;
3007        tmstart.u.HighPart = now.dwHighDateTime;
3008    } else {
3009        ULARGE_INTEGER tmstop;
3010
3011        tmstop.u.LowPart = now.dwLowDateTime;
3012        tmstop.u.HighPart = now.dwHighDateTime;
3013
3014        ret = (__int64)(tmstop.QuadPart - tmstart.QuadPart) * 1e-7;
3015    }
3016
3017    return (ret);
3018}
3019
3020#elif defined(OPENSSL_SYS_NETWARE)
3021# include <time.h>
3022
3023double app_tminterval(int stop, int usertime)
3024{
3025    double ret = 0;
3026    static clock_t tmstart;
3027    static int warning = 1;
3028
3029    if (usertime && warning) {
3030        BIO_printf(bio_err, "To get meaningful results, run "
3031                   "this program on idle system.\n");
3032        warning = 0;
3033    }
3034
3035    if (stop == TM_START)
3036        tmstart = clock();
3037    else
3038        ret = (clock() - tmstart) / (double)CLOCKS_PER_SEC;
3039
3040    return (ret);
3041}
3042
3043#elif defined(OPENSSL_SYSTEM_VXWORKS)
3044# include <time.h>
3045
3046double app_tminterval(int stop, int usertime)
3047{
3048    double ret = 0;
3049# ifdef CLOCK_REALTIME
3050    static struct timespec tmstart;
3051    struct timespec now;
3052# else
3053    static unsigned long tmstart;
3054    unsigned long now;
3055# endif
3056    static int warning = 1;
3057
3058    if (usertime && warning) {
3059        BIO_printf(bio_err, "To get meaningful results, run "
3060                   "this program on idle system.\n");
3061        warning = 0;
3062    }
3063# ifdef CLOCK_REALTIME
3064    clock_gettime(CLOCK_REALTIME, &now);
3065    if (stop == TM_START)
3066        tmstart = now;
3067    else
3068        ret = ((now.tv_sec + now.tv_nsec * 1e-9)
3069               - (tmstart.tv_sec + tmstart.tv_nsec * 1e-9));
3070# else
3071    now = tickGet();
3072    if (stop == TM_START)
3073        tmstart = now;
3074    else
3075        ret = (now - tmstart) / (double)sysClkRateGet();
3076# endif
3077    return (ret);
3078}
3079
3080#elif defined(OPENSSL_SYSTEM_VMS)
3081# include <time.h>
3082# include <times.h>
3083
3084double app_tminterval(int stop, int usertime)
3085{
3086    static clock_t tmstart;
3087    double ret = 0;
3088    clock_t now;
3089# ifdef __TMS
3090    struct tms rus;
3091
3092    now = times(&rus);
3093    if (usertime)
3094        now = rus.tms_utime;
3095# else
3096    if (usertime)
3097        now = clock();          /* sum of user and kernel times */
3098    else {
3099        struct timeval tv;
3100        gettimeofday(&tv, NULL);
3101        now = (clock_t)((unsigned long long)tv.tv_sec * CLK_TCK +
3102                        (unsigned long long)tv.tv_usec * (1000000 / CLK_TCK)
3103            );
3104    }
3105# endif
3106    if (stop == TM_START)
3107        tmstart = now;
3108    else
3109        ret = (now - tmstart) / (double)(CLK_TCK);
3110
3111    return (ret);
3112}
3113
3114#elif defined(_SC_CLK_TCK)      /* by means of unistd.h */
3115# include <sys/times.h>
3116
3117double app_tminterval(int stop, int usertime)
3118{
3119    double ret = 0;
3120    struct tms rus;
3121    clock_t now = times(&rus);
3122    static clock_t tmstart;
3123
3124    if (usertime)
3125        now = rus.tms_utime;
3126
3127    if (stop == TM_START)
3128        tmstart = now;
3129    else {
3130        long int tck = sysconf(_SC_CLK_TCK);
3131        ret = (now - tmstart) / (double)tck;
3132    }
3133
3134    return (ret);
3135}
3136
3137#else
3138# include <sys/time.h>
3139# include <sys/resource.h>
3140
3141double app_tminterval(int stop, int usertime)
3142{
3143    double ret = 0;
3144    struct rusage rus;
3145    struct timeval now;
3146    static struct timeval tmstart;
3147
3148    if (usertime)
3149        getrusage(RUSAGE_SELF, &rus), now = rus.ru_utime;
3150    else
3151        gettimeofday(&now, NULL);
3152
3153    if (stop == TM_START)
3154        tmstart = now;
3155    else
3156        ret = ((now.tv_sec + now.tv_usec * 1e-6)
3157               - (tmstart.tv_sec + tmstart.tv_usec * 1e-6));
3158
3159    return ret;
3160}
3161#endif
3162
3163/* app_isdir section */
3164#ifdef _WIN32
3165int app_isdir(const char *name)
3166{
3167    HANDLE hList;
3168    WIN32_FIND_DATA FileData;
3169# if defined(UNICODE) || defined(_UNICODE)
3170    size_t i, len_0 = strlen(name) + 1;
3171
3172    if (len_0 > sizeof(FileData.cFileName) / sizeof(FileData.cFileName[0]))
3173        return -1;
3174
3175#  if !defined(_WIN32_WCE) || _WIN32_WCE>=101
3176    if (!MultiByteToWideChar
3177        (CP_ACP, 0, name, len_0, FileData.cFileName, len_0))
3178#  endif
3179        for (i = 0; i < len_0; i++)
3180            FileData.cFileName[i] = (WCHAR)name[i];
3181
3182    hList = FindFirstFile(FileData.cFileName, &FileData);
3183# else
3184    hList = FindFirstFile(name, &FileData);
3185# endif
3186    if (hList == INVALID_HANDLE_VALUE)
3187        return -1;
3188    FindClose(hList);
3189    return ((FileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0);
3190}
3191#else
3192# include <sys/stat.h>
3193# ifndef S_ISDIR
3194#  if defined(_S_IFMT) && defined(_S_IFDIR)
3195#   define S_ISDIR(a)   (((a) & _S_IFMT) == _S_IFDIR)
3196#  else
3197#   define S_ISDIR(a)   (((a) & S_IFMT) == S_IFDIR)
3198#  endif
3199# endif
3200
3201int app_isdir(const char *name)
3202{
3203# if defined(S_ISDIR)
3204    struct stat st;
3205
3206    if (stat(name, &st) == 0)
3207        return S_ISDIR(st.st_mode);
3208    else
3209        return -1;
3210# else
3211    return -1;
3212# endif
3213}
3214#endif
3215
3216/* raw_read|write section */
3217#if defined(__VMS)
3218# include "vms_term_sock.h"
3219static int stdin_sock = -1;
3220
3221static void close_stdin_sock(void)
3222{
3223    TerminalSocket (TERM_SOCK_DELETE, &stdin_sock);
3224}
3225
3226int fileno_stdin(void)
3227{
3228    if (stdin_sock == -1) {
3229        TerminalSocket(TERM_SOCK_CREATE, &stdin_sock);
3230        atexit(close_stdin_sock);
3231    }
3232
3233    return stdin_sock;
3234}
3235#else
3236int fileno_stdin(void)
3237{
3238    return fileno(stdin);
3239}
3240#endif
3241
3242int fileno_stdout(void)
3243{
3244    return fileno(stdout);
3245}
3246
3247#if defined(_WIN32) && defined(STD_INPUT_HANDLE)
3248int raw_read_stdin(void *buf, int siz)
3249{
3250    DWORD n;
3251    if (ReadFile(GetStdHandle(STD_INPUT_HANDLE), buf, siz, &n, NULL))
3252        return (n);
3253    else
3254        return (-1);
3255}
3256#elif defined(__VMS)
3257#include <sys/socket.h>
3258
3259int raw_read_stdin(void *buf, int siz)
3260{
3261    return recv(fileno_stdin(), buf, siz, 0);
3262}
3263#else
3264int raw_read_stdin(void *buf, int siz)
3265{
3266    return read(fileno_stdin(), buf, siz);
3267}
3268#endif
3269
3270#if defined(_WIN32) && defined(STD_OUTPUT_HANDLE)
3271int raw_write_stdout(const void *buf, int siz)
3272{
3273    DWORD n;
3274    if (WriteFile(GetStdHandle(STD_OUTPUT_HANDLE), buf, siz, &n, NULL))
3275        return (n);
3276    else
3277        return (-1);
3278}
3279#else
3280int raw_write_stdout(const void *buf, int siz)
3281{
3282    return write(fileno_stdout(), buf, siz);
3283}
3284#endif
3285