apps.c revision 331638
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) 1998-2001 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_SEP_MASK) == 0)
1363        *flags |= XN_FLAG_SEP_CPLUS_SPC;
1364    return 1;
1365}
1366
1367int set_ext_copy(int *copy_type, const char *arg)
1368{
1369    if (!strcasecmp(arg, "none"))
1370        *copy_type = EXT_COPY_NONE;
1371    else if (!strcasecmp(arg, "copy"))
1372        *copy_type = EXT_COPY_ADD;
1373    else if (!strcasecmp(arg, "copyall"))
1374        *copy_type = EXT_COPY_ALL;
1375    else
1376        return 0;
1377    return 1;
1378}
1379
1380int copy_extensions(X509 *x, X509_REQ *req, int copy_type)
1381{
1382    STACK_OF(X509_EXTENSION) *exts = NULL;
1383    X509_EXTENSION *ext, *tmpext;
1384    ASN1_OBJECT *obj;
1385    int i, idx, ret = 0;
1386    if (!x || !req || (copy_type == EXT_COPY_NONE))
1387        return 1;
1388    exts = X509_REQ_get_extensions(req);
1389
1390    for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
1391        ext = sk_X509_EXTENSION_value(exts, i);
1392        obj = X509_EXTENSION_get_object(ext);
1393        idx = X509_get_ext_by_OBJ(x, obj, -1);
1394        /* Does extension exist? */
1395        if (idx != -1) {
1396            /* If normal copy don't override existing extension */
1397            if (copy_type == EXT_COPY_ADD)
1398                continue;
1399            /* Delete all extensions of same type */
1400            do {
1401                tmpext = X509_get_ext(x, idx);
1402                X509_delete_ext(x, idx);
1403                X509_EXTENSION_free(tmpext);
1404                idx = X509_get_ext_by_OBJ(x, obj, -1);
1405            } while (idx != -1);
1406        }
1407        if (!X509_add_ext(x, ext, -1))
1408            goto end;
1409    }
1410
1411    ret = 1;
1412
1413 end:
1414
1415    sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
1416
1417    return ret;
1418}
1419
1420static int set_multi_opts(unsigned long *flags, const char *arg,
1421                          const NAME_EX_TBL * in_tbl)
1422{
1423    STACK_OF(CONF_VALUE) *vals;
1424    CONF_VALUE *val;
1425    int i, ret = 1;
1426    if (!arg)
1427        return 0;
1428    vals = X509V3_parse_list(arg);
1429    for (i = 0; i < sk_CONF_VALUE_num(vals); i++) {
1430        val = sk_CONF_VALUE_value(vals, i);
1431        if (!set_table_opts(flags, val->name, in_tbl))
1432            ret = 0;
1433    }
1434    sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
1435    return ret;
1436}
1437
1438static int set_table_opts(unsigned long *flags, const char *arg,
1439                          const NAME_EX_TBL * in_tbl)
1440{
1441    char c;
1442    const NAME_EX_TBL *ptbl;
1443    c = arg[0];
1444
1445    if (c == '-') {
1446        c = 0;
1447        arg++;
1448    } else if (c == '+') {
1449        c = 1;
1450        arg++;
1451    } else
1452        c = 1;
1453
1454    for (ptbl = in_tbl; ptbl->name; ptbl++) {
1455        if (!strcasecmp(arg, ptbl->name)) {
1456            *flags &= ~ptbl->mask;
1457            if (c)
1458                *flags |= ptbl->flag;
1459            else
1460                *flags &= ~ptbl->flag;
1461            return 1;
1462        }
1463    }
1464    return 0;
1465}
1466
1467void print_name(BIO *out, const char *title, X509_NAME *nm,
1468                unsigned long lflags)
1469{
1470    char *buf;
1471    char mline = 0;
1472    int indent = 0;
1473
1474    if (title)
1475        BIO_puts(out, title);
1476    if ((lflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
1477        mline = 1;
1478        indent = 4;
1479    }
1480    if (lflags == XN_FLAG_COMPAT) {
1481        buf = X509_NAME_oneline(nm, 0, 0);
1482        BIO_puts(out, buf);
1483        BIO_puts(out, "\n");
1484        OPENSSL_free(buf);
1485    } else {
1486        if (mline)
1487            BIO_puts(out, "\n");
1488        X509_NAME_print_ex(out, nm, indent, lflags);
1489        BIO_puts(out, "\n");
1490    }
1491}
1492
1493X509_STORE *setup_verify(BIO *bp, char *CAfile, char *CApath)
1494{
1495    X509_STORE *store;
1496    X509_LOOKUP *lookup;
1497    if (!(store = X509_STORE_new()))
1498        goto end;
1499    lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file());
1500    if (lookup == NULL)
1501        goto end;
1502    if (CAfile) {
1503        if (!X509_LOOKUP_load_file(lookup, CAfile, X509_FILETYPE_PEM)) {
1504            BIO_printf(bp, "Error loading file %s\n", CAfile);
1505            goto end;
1506        }
1507    } else
1508        X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
1509
1510    lookup = X509_STORE_add_lookup(store, X509_LOOKUP_hash_dir());
1511    if (lookup == NULL)
1512        goto end;
1513    if (CApath) {
1514        if (!X509_LOOKUP_add_dir(lookup, CApath, X509_FILETYPE_PEM)) {
1515            BIO_printf(bp, "Error loading directory %s\n", CApath);
1516            goto end;
1517        }
1518    } else
1519        X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
1520
1521    ERR_clear_error();
1522    return store;
1523 end:
1524    X509_STORE_free(store);
1525    return NULL;
1526}
1527
1528#ifndef OPENSSL_NO_ENGINE
1529/* Try to load an engine in a shareable library */
1530static ENGINE *try_load_engine(BIO *err, const char *engine, int debug)
1531{
1532    ENGINE *e = ENGINE_by_id("dynamic");
1533    if (e) {
1534        if (!ENGINE_ctrl_cmd_string(e, "SO_PATH", engine, 0)
1535            || !ENGINE_ctrl_cmd_string(e, "LOAD", NULL, 0)) {
1536            ENGINE_free(e);
1537            e = NULL;
1538        }
1539    }
1540    return e;
1541}
1542#endif
1543
1544ENGINE *setup_engine(BIO *err, const char *engine, int debug)
1545{
1546    ENGINE *e = NULL;
1547
1548#ifndef OPENSSL_NO_ENGINE
1549    if (engine) {
1550        if (strcmp(engine, "auto") == 0) {
1551            BIO_printf(err, "enabling auto ENGINE support\n");
1552            ENGINE_register_all_complete();
1553            return NULL;
1554        }
1555        if ((e = ENGINE_by_id(engine)) == NULL
1556            && (e = try_load_engine(err, engine, debug)) == NULL) {
1557            BIO_printf(err, "invalid engine \"%s\"\n", engine);
1558            ERR_print_errors(err);
1559            return NULL;
1560        }
1561        if (debug) {
1562            ENGINE_ctrl(e, ENGINE_CTRL_SET_LOGSTREAM, 0, err, 0);
1563        }
1564        ENGINE_ctrl_cmd(e, "SET_USER_INTERFACE", 0, ui_method, 0, 1);
1565        if (!ENGINE_set_default(e, ENGINE_METHOD_ALL)) {
1566            BIO_printf(err, "can't use that engine\n");
1567            ERR_print_errors(err);
1568            ENGINE_free(e);
1569            return NULL;
1570        }
1571
1572        BIO_printf(err, "engine \"%s\" set.\n", ENGINE_get_id(e));
1573    }
1574#endif
1575    return e;
1576}
1577
1578void release_engine(ENGINE *e)
1579{
1580#ifndef OPENSSL_NO_ENGINE
1581    if (e != NULL)
1582        /* Free our "structural" reference. */
1583        ENGINE_free(e);
1584#endif
1585}
1586
1587int load_config(BIO *err, CONF *cnf)
1588{
1589    static int load_config_called = 0;
1590    if (load_config_called)
1591        return 1;
1592    load_config_called = 1;
1593    if (!cnf)
1594        cnf = config;
1595    if (!cnf)
1596        return 1;
1597
1598    OPENSSL_load_builtin_modules();
1599
1600    if (CONF_modules_load(cnf, NULL, 0) <= 0) {
1601        BIO_printf(err, "Error configuring OpenSSL\n");
1602        ERR_print_errors(err);
1603        return 0;
1604    }
1605    return 1;
1606}
1607
1608char *make_config_name()
1609{
1610    const char *t = X509_get_default_cert_area();
1611    size_t len;
1612    char *p;
1613
1614    len = strlen(t) + strlen(OPENSSL_CONF) + 2;
1615    p = OPENSSL_malloc(len);
1616    if (p == NULL)
1617        return NULL;
1618    BUF_strlcpy(p, t, len);
1619#ifndef OPENSSL_SYS_VMS
1620    BUF_strlcat(p, "/", len);
1621#endif
1622    BUF_strlcat(p, OPENSSL_CONF, len);
1623
1624    return p;
1625}
1626
1627static unsigned long index_serial_hash(const OPENSSL_CSTRING *a)
1628{
1629    const char *n;
1630
1631    n = a[DB_serial];
1632    while (*n == '0')
1633        n++;
1634    return (lh_strhash(n));
1635}
1636
1637static int index_serial_cmp(const OPENSSL_CSTRING *a,
1638                            const OPENSSL_CSTRING *b)
1639{
1640    const char *aa, *bb;
1641
1642    for (aa = a[DB_serial]; *aa == '0'; aa++) ;
1643    for (bb = b[DB_serial]; *bb == '0'; bb++) ;
1644    return (strcmp(aa, bb));
1645}
1646
1647static int index_name_qual(char **a)
1648{
1649    return (a[0][0] == 'V');
1650}
1651
1652static unsigned long index_name_hash(const OPENSSL_CSTRING *a)
1653{
1654    return (lh_strhash(a[DB_name]));
1655}
1656
1657int index_name_cmp(const OPENSSL_CSTRING *a, const OPENSSL_CSTRING *b)
1658{
1659    return (strcmp(a[DB_name], b[DB_name]));
1660}
1661
1662static IMPLEMENT_LHASH_HASH_FN(index_serial, OPENSSL_CSTRING)
1663static IMPLEMENT_LHASH_COMP_FN(index_serial, OPENSSL_CSTRING)
1664static IMPLEMENT_LHASH_HASH_FN(index_name, OPENSSL_CSTRING)
1665static IMPLEMENT_LHASH_COMP_FN(index_name, OPENSSL_CSTRING)
1666#undef BSIZE
1667#define BSIZE 256
1668BIGNUM *load_serial(char *serialfile, int create, ASN1_INTEGER **retai)
1669{
1670    BIO *in = NULL;
1671    BIGNUM *ret = NULL;
1672    MS_STATIC char buf[1024];
1673    ASN1_INTEGER *ai = NULL;
1674
1675    ai = ASN1_INTEGER_new();
1676    if (ai == NULL)
1677        goto err;
1678
1679    if ((in = BIO_new(BIO_s_file())) == NULL) {
1680        ERR_print_errors(bio_err);
1681        goto err;
1682    }
1683
1684    if (BIO_read_filename(in, serialfile) <= 0) {
1685        if (!create) {
1686            perror(serialfile);
1687            goto err;
1688        } else {
1689            ret = BN_new();
1690            if (ret == NULL || !rand_serial(ret, ai))
1691                BIO_printf(bio_err, "Out of memory\n");
1692        }
1693    } else {
1694        if (!a2i_ASN1_INTEGER(in, ai, buf, 1024)) {
1695            BIO_printf(bio_err, "unable to load number from %s\n",
1696                       serialfile);
1697            goto err;
1698        }
1699        ret = ASN1_INTEGER_to_BN(ai, NULL);
1700        if (ret == NULL) {
1701            BIO_printf(bio_err,
1702                       "error converting number from bin to BIGNUM\n");
1703            goto err;
1704        }
1705    }
1706
1707    if (ret && retai) {
1708        *retai = ai;
1709        ai = NULL;
1710    }
1711 err:
1712    if (in != NULL)
1713        BIO_free(in);
1714    if (ai != NULL)
1715        ASN1_INTEGER_free(ai);
1716    return (ret);
1717}
1718
1719int save_serial(char *serialfile, char *suffix, BIGNUM *serial,
1720                ASN1_INTEGER **retai)
1721{
1722    char buf[1][BSIZE];
1723    BIO *out = NULL;
1724    int ret = 0;
1725    ASN1_INTEGER *ai = NULL;
1726    int j;
1727
1728    if (suffix == NULL)
1729        j = strlen(serialfile);
1730    else
1731        j = strlen(serialfile) + strlen(suffix) + 1;
1732    if (j >= BSIZE) {
1733        BIO_printf(bio_err, "file name too long\n");
1734        goto err;
1735    }
1736
1737    if (suffix == NULL)
1738        BUF_strlcpy(buf[0], serialfile, BSIZE);
1739    else {
1740#ifndef OPENSSL_SYS_VMS
1741        j = BIO_snprintf(buf[0], sizeof(buf[0]), "%s.%s", serialfile, suffix);
1742#else
1743        j = BIO_snprintf(buf[0], sizeof(buf[0]), "%s-%s", serialfile, suffix);
1744#endif
1745    }
1746#ifdef RL_DEBUG
1747    BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[0]);
1748#endif
1749    out = BIO_new(BIO_s_file());
1750    if (out == NULL) {
1751        ERR_print_errors(bio_err);
1752        goto err;
1753    }
1754    if (BIO_write_filename(out, buf[0]) <= 0) {
1755        perror(serialfile);
1756        goto err;
1757    }
1758
1759    if ((ai = BN_to_ASN1_INTEGER(serial, NULL)) == NULL) {
1760        BIO_printf(bio_err, "error converting serial to ASN.1 format\n");
1761        goto err;
1762    }
1763    i2a_ASN1_INTEGER(out, ai);
1764    BIO_puts(out, "\n");
1765    ret = 1;
1766    if (retai) {
1767        *retai = ai;
1768        ai = NULL;
1769    }
1770 err:
1771    if (out != NULL)
1772        BIO_free_all(out);
1773    if (ai != NULL)
1774        ASN1_INTEGER_free(ai);
1775    return (ret);
1776}
1777
1778int rotate_serial(char *serialfile, char *new_suffix, char *old_suffix)
1779{
1780    char buf[5][BSIZE];
1781    int i, j;
1782
1783    i = strlen(serialfile) + strlen(old_suffix);
1784    j = strlen(serialfile) + strlen(new_suffix);
1785    if (i > j)
1786        j = i;
1787    if (j + 1 >= BSIZE) {
1788        BIO_printf(bio_err, "file name too long\n");
1789        goto err;
1790    }
1791#ifndef OPENSSL_SYS_VMS
1792    j = BIO_snprintf(buf[0], sizeof(buf[0]), "%s.%s", serialfile, new_suffix);
1793#else
1794    j = BIO_snprintf(buf[0], sizeof(buf[0]), "%s-%s", serialfile, new_suffix);
1795#endif
1796#ifndef OPENSSL_SYS_VMS
1797    j = BIO_snprintf(buf[1], sizeof(buf[1]), "%s.%s", serialfile, old_suffix);
1798#else
1799    j = BIO_snprintf(buf[1], sizeof(buf[1]), "%s-%s", serialfile, old_suffix);
1800#endif
1801#ifdef RL_DEBUG
1802    BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1803               serialfile, buf[1]);
1804#endif
1805    if (rename(serialfile, buf[1]) < 0 && errno != ENOENT
1806#ifdef ENOTDIR
1807        && errno != ENOTDIR
1808#endif
1809        ) {
1810        BIO_printf(bio_err,
1811                   "unable to rename %s to %s\n", serialfile, buf[1]);
1812        perror("reason");
1813        goto err;
1814    }
1815#ifdef RL_DEBUG
1816    BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1817               buf[0], serialfile);
1818#endif
1819    if (rename(buf[0], serialfile) < 0) {
1820        BIO_printf(bio_err,
1821                   "unable to rename %s to %s\n", buf[0], serialfile);
1822        perror("reason");
1823        rename(buf[1], serialfile);
1824        goto err;
1825    }
1826    return 1;
1827 err:
1828    return 0;
1829}
1830
1831int rand_serial(BIGNUM *b, ASN1_INTEGER *ai)
1832{
1833    BIGNUM *btmp;
1834    int ret = 0;
1835    if (b)
1836        btmp = b;
1837    else
1838        btmp = BN_new();
1839
1840    if (!btmp)
1841        return 0;
1842
1843    if (!BN_pseudo_rand(btmp, SERIAL_RAND_BITS, 0, 0))
1844        goto error;
1845    if (ai && !BN_to_ASN1_INTEGER(btmp, ai))
1846        goto error;
1847
1848    ret = 1;
1849
1850 error:
1851
1852    if (!b)
1853        BN_free(btmp);
1854
1855    return ret;
1856}
1857
1858CA_DB *load_index(char *dbfile, DB_ATTR *db_attr)
1859{
1860    CA_DB *retdb = NULL;
1861    TXT_DB *tmpdb = NULL;
1862    BIO *in = BIO_new(BIO_s_file());
1863    CONF *dbattr_conf = NULL;
1864    char buf[1][BSIZE];
1865    long errorline = -1;
1866
1867    if (in == NULL) {
1868        ERR_print_errors(bio_err);
1869        goto err;
1870    }
1871    if (BIO_read_filename(in, dbfile) <= 0) {
1872        perror(dbfile);
1873        BIO_printf(bio_err, "unable to open '%s'\n", dbfile);
1874        goto err;
1875    }
1876    if ((tmpdb = TXT_DB_read(in, DB_NUMBER)) == NULL)
1877        goto err;
1878
1879#ifndef OPENSSL_SYS_VMS
1880    BIO_snprintf(buf[0], sizeof(buf[0]), "%s.attr", dbfile);
1881#else
1882    BIO_snprintf(buf[0], sizeof(buf[0]), "%s-attr", dbfile);
1883#endif
1884    dbattr_conf = NCONF_new(NULL);
1885    if (NCONF_load(dbattr_conf, buf[0], &errorline) <= 0) {
1886        if (errorline > 0) {
1887            BIO_printf(bio_err,
1888                       "error on line %ld of db attribute file '%s'\n",
1889                       errorline, buf[0]);
1890            goto err;
1891        } else {
1892            NCONF_free(dbattr_conf);
1893            dbattr_conf = NULL;
1894        }
1895    }
1896
1897    if ((retdb = OPENSSL_malloc(sizeof(CA_DB))) == NULL) {
1898        fprintf(stderr, "Out of memory\n");
1899        goto err;
1900    }
1901
1902    retdb->db = tmpdb;
1903    tmpdb = NULL;
1904    if (db_attr)
1905        retdb->attributes = *db_attr;
1906    else {
1907        retdb->attributes.unique_subject = 1;
1908    }
1909
1910    if (dbattr_conf) {
1911        char *p = NCONF_get_string(dbattr_conf, NULL, "unique_subject");
1912        if (p) {
1913#ifdef RL_DEBUG
1914            BIO_printf(bio_err,
1915                       "DEBUG[load_index]: unique_subject = \"%s\"\n", p);
1916#endif
1917            retdb->attributes.unique_subject = parse_yesno(p, 1);
1918        }
1919    }
1920
1921 err:
1922    if (dbattr_conf)
1923        NCONF_free(dbattr_conf);
1924    if (tmpdb)
1925        TXT_DB_free(tmpdb);
1926    if (in)
1927        BIO_free_all(in);
1928    return retdb;
1929}
1930
1931int index_index(CA_DB *db)
1932{
1933    if (!TXT_DB_create_index(db->db, DB_serial, NULL,
1934                             LHASH_HASH_FN(index_serial),
1935                             LHASH_COMP_FN(index_serial))) {
1936        BIO_printf(bio_err,
1937                   "error creating serial number index:(%ld,%ld,%ld)\n",
1938                   db->db->error, db->db->arg1, db->db->arg2);
1939        return 0;
1940    }
1941
1942    if (db->attributes.unique_subject
1943        && !TXT_DB_create_index(db->db, DB_name, index_name_qual,
1944                                LHASH_HASH_FN(index_name),
1945                                LHASH_COMP_FN(index_name))) {
1946        BIO_printf(bio_err, "error creating name index:(%ld,%ld,%ld)\n",
1947                   db->db->error, db->db->arg1, db->db->arg2);
1948        return 0;
1949    }
1950    return 1;
1951}
1952
1953int save_index(const char *dbfile, const char *suffix, CA_DB *db)
1954{
1955    char buf[3][BSIZE];
1956    BIO *out = BIO_new(BIO_s_file());
1957    int j;
1958
1959    if (out == NULL) {
1960        ERR_print_errors(bio_err);
1961        goto err;
1962    }
1963
1964    j = strlen(dbfile) + strlen(suffix);
1965    if (j + 6 >= BSIZE) {
1966        BIO_printf(bio_err, "file name too long\n");
1967        goto err;
1968    }
1969#ifndef OPENSSL_SYS_VMS
1970    j = BIO_snprintf(buf[2], sizeof(buf[2]), "%s.attr", dbfile);
1971#else
1972    j = BIO_snprintf(buf[2], sizeof(buf[2]), "%s-attr", dbfile);
1973#endif
1974#ifndef OPENSSL_SYS_VMS
1975    j = BIO_snprintf(buf[1], sizeof(buf[1]), "%s.attr.%s", dbfile, suffix);
1976#else
1977    j = BIO_snprintf(buf[1], sizeof(buf[1]), "%s-attr-%s", dbfile, suffix);
1978#endif
1979#ifndef OPENSSL_SYS_VMS
1980    j = BIO_snprintf(buf[0], sizeof(buf[0]), "%s.%s", dbfile, suffix);
1981#else
1982    j = BIO_snprintf(buf[0], sizeof(buf[0]), "%s-%s", dbfile, suffix);
1983#endif
1984#ifdef RL_DEBUG
1985    BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[0]);
1986#endif
1987    if (BIO_write_filename(out, buf[0]) <= 0) {
1988        perror(dbfile);
1989        BIO_printf(bio_err, "unable to open '%s'\n", dbfile);
1990        goto err;
1991    }
1992    j = TXT_DB_write(out, db->db);
1993    if (j <= 0)
1994        goto err;
1995
1996    BIO_free(out);
1997
1998    out = BIO_new(BIO_s_file());
1999#ifdef RL_DEBUG
2000    BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[1]);
2001#endif
2002    if (BIO_write_filename(out, buf[1]) <= 0) {
2003        perror(buf[2]);
2004        BIO_printf(bio_err, "unable to open '%s'\n", buf[2]);
2005        goto err;
2006    }
2007    BIO_printf(out, "unique_subject = %s\n",
2008               db->attributes.unique_subject ? "yes" : "no");
2009    BIO_free(out);
2010
2011    return 1;
2012 err:
2013    return 0;
2014}
2015
2016int rotate_index(const char *dbfile, const char *new_suffix,
2017                 const char *old_suffix)
2018{
2019    char buf[5][BSIZE];
2020    int i, j;
2021
2022    i = strlen(dbfile) + strlen(old_suffix);
2023    j = strlen(dbfile) + strlen(new_suffix);
2024    if (i > j)
2025        j = i;
2026    if (j + 6 >= BSIZE) {
2027        BIO_printf(bio_err, "file name too long\n");
2028        goto err;
2029    }
2030#ifndef OPENSSL_SYS_VMS
2031    j = BIO_snprintf(buf[4], sizeof(buf[4]), "%s.attr", dbfile);
2032#else
2033    j = BIO_snprintf(buf[4], sizeof(buf[4]), "%s-attr", dbfile);
2034#endif
2035#ifndef OPENSSL_SYS_VMS
2036    j = BIO_snprintf(buf[2], sizeof(buf[2]), "%s.attr.%s", dbfile, new_suffix);
2037#else
2038    j = BIO_snprintf(buf[2], sizeof(buf[2]), "%s-attr-%s", dbfile, new_suffix);
2039#endif
2040#ifndef OPENSSL_SYS_VMS
2041    j = BIO_snprintf(buf[0], sizeof(buf[0]), "%s.%s", dbfile, new_suffix);
2042#else
2043    j = BIO_snprintf(buf[0], sizeof(buf[0]), "%s-%s", dbfile, new_suffix);
2044#endif
2045#ifndef OPENSSL_SYS_VMS
2046    j = BIO_snprintf(buf[1], sizeof(buf[1]), "%s.%s", dbfile, old_suffix);
2047#else
2048    j = BIO_snprintf(buf[1], sizeof(buf[1]), "%s-%s", dbfile, old_suffix);
2049#endif
2050#ifndef OPENSSL_SYS_VMS
2051    j = BIO_snprintf(buf[3], sizeof(buf[3]), "%s.attr.%s", dbfile, old_suffix);
2052#else
2053    j = BIO_snprintf(buf[3], sizeof(buf[3]), "%s-attr-%s", dbfile, old_suffix);
2054#endif
2055#ifdef RL_DEBUG
2056    BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n", dbfile, buf[1]);
2057#endif
2058    if (rename(dbfile, buf[1]) < 0 && errno != ENOENT
2059#ifdef ENOTDIR
2060        && errno != ENOTDIR
2061#endif
2062        ) {
2063        BIO_printf(bio_err, "unable to rename %s to %s\n", dbfile, buf[1]);
2064        perror("reason");
2065        goto err;
2066    }
2067#ifdef RL_DEBUG
2068    BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n", buf[0], dbfile);
2069#endif
2070    if (rename(buf[0], dbfile) < 0) {
2071        BIO_printf(bio_err, "unable to rename %s to %s\n", buf[0], dbfile);
2072        perror("reason");
2073        rename(buf[1], dbfile);
2074        goto err;
2075    }
2076#ifdef RL_DEBUG
2077    BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n", buf[4], buf[3]);
2078#endif
2079    if (rename(buf[4], buf[3]) < 0 && errno != ENOENT
2080#ifdef ENOTDIR
2081        && errno != ENOTDIR
2082#endif
2083        ) {
2084        BIO_printf(bio_err, "unable to rename %s to %s\n", buf[4], buf[3]);
2085        perror("reason");
2086        rename(dbfile, buf[0]);
2087        rename(buf[1], dbfile);
2088        goto err;
2089    }
2090#ifdef RL_DEBUG
2091    BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n", buf[2], buf[4]);
2092#endif
2093    if (rename(buf[2], buf[4]) < 0) {
2094        BIO_printf(bio_err, "unable to rename %s to %s\n", buf[2], buf[4]);
2095        perror("reason");
2096        rename(buf[3], buf[4]);
2097        rename(dbfile, buf[0]);
2098        rename(buf[1], dbfile);
2099        goto err;
2100    }
2101    return 1;
2102 err:
2103    return 0;
2104}
2105
2106void free_index(CA_DB *db)
2107{
2108    if (db) {
2109        if (db->db)
2110            TXT_DB_free(db->db);
2111        OPENSSL_free(db);
2112    }
2113}
2114
2115int parse_yesno(const char *str, int def)
2116{
2117    int ret = def;
2118    if (str) {
2119        switch (*str) {
2120        case 'f':              /* false */
2121        case 'F':              /* FALSE */
2122        case 'n':              /* no */
2123        case 'N':              /* NO */
2124        case '0':              /* 0 */
2125            ret = 0;
2126            break;
2127        case 't':              /* true */
2128        case 'T':              /* TRUE */
2129        case 'y':              /* yes */
2130        case 'Y':              /* YES */
2131        case '1':              /* 1 */
2132            ret = 1;
2133            break;
2134        default:
2135            ret = def;
2136            break;
2137        }
2138    }
2139    return ret;
2140}
2141
2142/*
2143 * subject is expected to be in the format /type0=value0/type1=value1/type2=...
2144 * where characters may be escaped by \
2145 */
2146X509_NAME *parse_name(char *subject, long chtype, int multirdn)
2147{
2148    size_t buflen = strlen(subject) + 1; /* to copy the types and values
2149                                          * into. due to escaping, the copy
2150                                          * can only become shorter */
2151    char *buf = OPENSSL_malloc(buflen);
2152    size_t max_ne = buflen / 2 + 1; /* maximum number of name elements */
2153    char **ne_types = OPENSSL_malloc(max_ne * sizeof(char *));
2154    char **ne_values = OPENSSL_malloc(max_ne * sizeof(char *));
2155    int *mval = OPENSSL_malloc(max_ne * sizeof(int));
2156
2157    char *sp = subject, *bp = buf;
2158    int i, ne_num = 0;
2159
2160    X509_NAME *n = NULL;
2161    int nid;
2162
2163    if (!buf || !ne_types || !ne_values || !mval) {
2164        BIO_printf(bio_err, "malloc error\n");
2165        goto error;
2166    }
2167
2168    if (*subject != '/') {
2169        BIO_printf(bio_err, "Subject does not start with '/'.\n");
2170        goto error;
2171    }
2172    sp++;                       /* skip leading / */
2173
2174    /* no multivalued RDN by default */
2175    mval[ne_num] = 0;
2176
2177    while (*sp) {
2178        /* collect type */
2179        ne_types[ne_num] = bp;
2180        while (*sp) {
2181            if (*sp == '\\') {  /* is there anything to escape in the
2182                                 * type...? */
2183                if (*++sp)
2184                    *bp++ = *sp++;
2185                else {
2186                    BIO_printf(bio_err,
2187                               "escape character at end of string\n");
2188                    goto error;
2189                }
2190            } else if (*sp == '=') {
2191                sp++;
2192                *bp++ = '\0';
2193                break;
2194            } else
2195                *bp++ = *sp++;
2196        }
2197        if (!*sp) {
2198            BIO_printf(bio_err,
2199                       "end of string encountered while processing type of subject name element #%d\n",
2200                       ne_num);
2201            goto error;
2202        }
2203        ne_values[ne_num] = bp;
2204        while (*sp) {
2205            if (*sp == '\\') {
2206                if (*++sp)
2207                    *bp++ = *sp++;
2208                else {
2209                    BIO_printf(bio_err,
2210                               "escape character at end of string\n");
2211                    goto error;
2212                }
2213            } else if (*sp == '/') {
2214                sp++;
2215                /* no multivalued RDN by default */
2216                mval[ne_num + 1] = 0;
2217                break;
2218            } else if (*sp == '+' && multirdn) {
2219                /*
2220                 * a not escaped + signals a mutlivalued RDN
2221                 */
2222                sp++;
2223                mval[ne_num + 1] = -1;
2224                break;
2225            } else
2226                *bp++ = *sp++;
2227        }
2228        *bp++ = '\0';
2229        ne_num++;
2230    }
2231
2232    if (!(n = X509_NAME_new()))
2233        goto error;
2234
2235    for (i = 0; i < ne_num; i++) {
2236        if ((nid = OBJ_txt2nid(ne_types[i])) == NID_undef) {
2237            BIO_printf(bio_err,
2238                       "Subject Attribute %s has no known NID, skipped\n",
2239                       ne_types[i]);
2240            continue;
2241        }
2242
2243        if (!*ne_values[i]) {
2244            BIO_printf(bio_err,
2245                       "No value provided for Subject Attribute %s, skipped\n",
2246                       ne_types[i]);
2247            continue;
2248        }
2249
2250        if (!X509_NAME_add_entry_by_NID
2251            (n, nid, chtype, (unsigned char *)ne_values[i], -1, -1, mval[i]))
2252            goto error;
2253    }
2254
2255    OPENSSL_free(ne_values);
2256    OPENSSL_free(ne_types);
2257    OPENSSL_free(buf);
2258    OPENSSL_free(mval);
2259    return n;
2260
2261 error:
2262    X509_NAME_free(n);
2263    if (ne_values)
2264        OPENSSL_free(ne_values);
2265    if (ne_types)
2266        OPENSSL_free(ne_types);
2267    if (mval)
2268        OPENSSL_free(mval);
2269    if (buf)
2270        OPENSSL_free(buf);
2271    return NULL;
2272}
2273
2274int args_verify(char ***pargs, int *pargc,
2275                int *badarg, BIO *err, X509_VERIFY_PARAM **pm)
2276{
2277    ASN1_OBJECT *otmp = NULL;
2278    unsigned long flags = 0;
2279    int i;
2280    int purpose = 0, depth = -1;
2281    char **oldargs = *pargs;
2282    char *arg = **pargs, *argn = (*pargs)[1];
2283    time_t at_time = 0;
2284    char *hostname = NULL;
2285    char *email = NULL;
2286    char *ipasc = NULL;
2287    if (!strcmp(arg, "-policy")) {
2288        if (!argn)
2289            *badarg = 1;
2290        else {
2291            otmp = OBJ_txt2obj(argn, 0);
2292            if (!otmp) {
2293                BIO_printf(err, "Invalid Policy \"%s\"\n", argn);
2294                *badarg = 1;
2295            }
2296        }
2297        (*pargs)++;
2298    } else if (strcmp(arg, "-purpose") == 0) {
2299        X509_PURPOSE *xptmp;
2300        if (!argn)
2301            *badarg = 1;
2302        else {
2303            i = X509_PURPOSE_get_by_sname(argn);
2304            if (i < 0) {
2305                BIO_printf(err, "unrecognized purpose\n");
2306                *badarg = 1;
2307            } else {
2308                xptmp = X509_PURPOSE_get0(i);
2309                purpose = X509_PURPOSE_get_id(xptmp);
2310            }
2311        }
2312        (*pargs)++;
2313    } else if (strcmp(arg, "-verify_depth") == 0) {
2314        if (!argn)
2315            *badarg = 1;
2316        else {
2317            depth = atoi(argn);
2318            if (depth < 0) {
2319                BIO_printf(err, "invalid depth\n");
2320                *badarg = 1;
2321            }
2322        }
2323        (*pargs)++;
2324    } else if (strcmp(arg, "-attime") == 0) {
2325        if (!argn)
2326            *badarg = 1;
2327        else {
2328            long timestamp;
2329            /*
2330             * interpret the -attime argument as seconds since Epoch
2331             */
2332            if (sscanf(argn, "%li", &timestamp) != 1) {
2333                BIO_printf(bio_err, "Error parsing timestamp %s\n", argn);
2334                *badarg = 1;
2335            }
2336            /* on some platforms time_t may be a float */
2337            at_time = (time_t)timestamp;
2338        }
2339        (*pargs)++;
2340    } else if (strcmp(arg, "-verify_hostname") == 0) {
2341        if (!argn)
2342            *badarg = 1;
2343        hostname = argn;
2344        (*pargs)++;
2345    } else if (strcmp(arg, "-verify_email") == 0) {
2346        if (!argn)
2347            *badarg = 1;
2348        email = argn;
2349        (*pargs)++;
2350    } else if (strcmp(arg, "-verify_ip") == 0) {
2351        if (!argn)
2352            *badarg = 1;
2353        ipasc = argn;
2354        (*pargs)++;
2355    } else if (!strcmp(arg, "-ignore_critical"))
2356        flags |= X509_V_FLAG_IGNORE_CRITICAL;
2357    else if (!strcmp(arg, "-issuer_checks"))
2358        flags |= X509_V_FLAG_CB_ISSUER_CHECK;
2359    else if (!strcmp(arg, "-crl_check"))
2360        flags |= X509_V_FLAG_CRL_CHECK;
2361    else if (!strcmp(arg, "-crl_check_all"))
2362        flags |= X509_V_FLAG_CRL_CHECK | X509_V_FLAG_CRL_CHECK_ALL;
2363    else if (!strcmp(arg, "-policy_check"))
2364        flags |= X509_V_FLAG_POLICY_CHECK;
2365    else if (!strcmp(arg, "-explicit_policy"))
2366        flags |= X509_V_FLAG_EXPLICIT_POLICY;
2367    else if (!strcmp(arg, "-inhibit_any"))
2368        flags |= X509_V_FLAG_INHIBIT_ANY;
2369    else if (!strcmp(arg, "-inhibit_map"))
2370        flags |= X509_V_FLAG_INHIBIT_MAP;
2371    else if (!strcmp(arg, "-x509_strict"))
2372        flags |= X509_V_FLAG_X509_STRICT;
2373    else if (!strcmp(arg, "-extended_crl"))
2374        flags |= X509_V_FLAG_EXTENDED_CRL_SUPPORT;
2375    else if (!strcmp(arg, "-use_deltas"))
2376        flags |= X509_V_FLAG_USE_DELTAS;
2377    else if (!strcmp(arg, "-policy_print"))
2378        flags |= X509_V_FLAG_NOTIFY_POLICY;
2379    else if (!strcmp(arg, "-check_ss_sig"))
2380        flags |= X509_V_FLAG_CHECK_SS_SIGNATURE;
2381    else if (!strcmp(arg, "-trusted_first"))
2382        flags |= X509_V_FLAG_TRUSTED_FIRST;
2383    else if (!strcmp(arg, "-suiteB_128_only"))
2384        flags |= X509_V_FLAG_SUITEB_128_LOS_ONLY;
2385    else if (!strcmp(arg, "-suiteB_128"))
2386        flags |= X509_V_FLAG_SUITEB_128_LOS;
2387    else if (!strcmp(arg, "-suiteB_192"))
2388        flags |= X509_V_FLAG_SUITEB_192_LOS;
2389    else if (!strcmp(arg, "-partial_chain"))
2390        flags |= X509_V_FLAG_PARTIAL_CHAIN;
2391    else if (!strcmp(arg, "-no_alt_chains"))
2392        flags |= X509_V_FLAG_NO_ALT_CHAINS;
2393    else if (!strcmp(arg, "-allow_proxy_certs"))
2394        flags |= X509_V_FLAG_ALLOW_PROXY_CERTS;
2395    else
2396        return 0;
2397
2398    if (*badarg) {
2399        if (*pm)
2400            X509_VERIFY_PARAM_free(*pm);
2401        *pm = NULL;
2402        goto end;
2403    }
2404
2405    if (!*pm && !(*pm = X509_VERIFY_PARAM_new())) {
2406        *badarg = 1;
2407        goto end;
2408    }
2409
2410    if (otmp)
2411        X509_VERIFY_PARAM_add0_policy(*pm, otmp);
2412    if (flags)
2413        X509_VERIFY_PARAM_set_flags(*pm, flags);
2414
2415    if (purpose)
2416        X509_VERIFY_PARAM_set_purpose(*pm, purpose);
2417
2418    if (depth >= 0)
2419        X509_VERIFY_PARAM_set_depth(*pm, depth);
2420
2421    if (at_time)
2422        X509_VERIFY_PARAM_set_time(*pm, at_time);
2423
2424    if (hostname && !X509_VERIFY_PARAM_set1_host(*pm, hostname, 0))
2425        *badarg = 1;
2426
2427    if (email && !X509_VERIFY_PARAM_set1_email(*pm, email, 0))
2428        *badarg = 1;
2429
2430    if (ipasc && !X509_VERIFY_PARAM_set1_ip_asc(*pm, ipasc))
2431        *badarg = 1;
2432
2433 end:
2434
2435    (*pargs)++;
2436
2437    if (pargc)
2438        *pargc -= *pargs - oldargs;
2439
2440    return 1;
2441
2442}
2443
2444/*
2445 * Read whole contents of a BIO into an allocated memory buffer and return
2446 * it.
2447 */
2448
2449int bio_to_mem(unsigned char **out, int maxlen, BIO *in)
2450{
2451    BIO *mem;
2452    int len, ret;
2453    unsigned char tbuf[1024];
2454    mem = BIO_new(BIO_s_mem());
2455    if (!mem)
2456        return -1;
2457    for (;;) {
2458        if ((maxlen != -1) && maxlen < 1024)
2459            len = maxlen;
2460        else
2461            len = 1024;
2462        len = BIO_read(in, tbuf, len);
2463        if (len < 0) {
2464            BIO_free(mem);
2465            return -1;
2466        }
2467        if (len == 0)
2468            break;
2469        if (BIO_write(mem, tbuf, len) != len) {
2470            BIO_free(mem);
2471            return -1;
2472        }
2473        maxlen -= len;
2474
2475        if (maxlen == 0)
2476            break;
2477    }
2478    ret = BIO_get_mem_data(mem, (char **)out);
2479    BIO_set_flags(mem, BIO_FLAGS_MEM_RDONLY);
2480    BIO_free(mem);
2481    return ret;
2482}
2483
2484int pkey_ctrl_string(EVP_PKEY_CTX *ctx, const char *value)
2485{
2486    int rv;
2487    char *stmp, *vtmp = NULL;
2488    stmp = BUF_strdup(value);
2489    if (!stmp)
2490        return -1;
2491    vtmp = strchr(stmp, ':');
2492    if (vtmp) {
2493        *vtmp = 0;
2494        vtmp++;
2495    }
2496    rv = EVP_PKEY_CTX_ctrl_str(ctx, stmp, vtmp);
2497    OPENSSL_free(stmp);
2498    return rv;
2499}
2500
2501static void nodes_print(BIO *out, const char *name,
2502                        STACK_OF(X509_POLICY_NODE) *nodes)
2503{
2504    X509_POLICY_NODE *node;
2505    int i;
2506    BIO_printf(out, "%s Policies:", name);
2507    if (nodes) {
2508        BIO_puts(out, "\n");
2509        for (i = 0; i < sk_X509_POLICY_NODE_num(nodes); i++) {
2510            node = sk_X509_POLICY_NODE_value(nodes, i);
2511            X509_POLICY_NODE_print(out, node, 2);
2512        }
2513    } else
2514        BIO_puts(out, " <empty>\n");
2515}
2516
2517void policies_print(BIO *out, X509_STORE_CTX *ctx)
2518{
2519    X509_POLICY_TREE *tree;
2520    int explicit_policy;
2521    int free_out = 0;
2522    if (out == NULL) {
2523        out = BIO_new_fp(stderr, BIO_NOCLOSE);
2524        free_out = 1;
2525    }
2526    tree = X509_STORE_CTX_get0_policy_tree(ctx);
2527    explicit_policy = X509_STORE_CTX_get_explicit_policy(ctx);
2528
2529    BIO_printf(out, "Require explicit Policy: %s\n",
2530               explicit_policy ? "True" : "False");
2531
2532    nodes_print(out, "Authority", X509_policy_tree_get0_policies(tree));
2533    nodes_print(out, "User", X509_policy_tree_get0_user_policies(tree));
2534    if (free_out)
2535        BIO_free(out);
2536}
2537
2538#if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
2539
2540static JPAKE_CTX *jpake_init(const char *us, const char *them,
2541                             const char *secret)
2542{
2543    BIGNUM *p = NULL;
2544    BIGNUM *g = NULL;
2545    BIGNUM *q = NULL;
2546    BIGNUM *bnsecret = BN_new();
2547    JPAKE_CTX *ctx;
2548
2549    /* Use a safe prime for p (that we found earlier) */
2550    BN_hex2bn(&p,
2551              "F9E5B365665EA7A05A9C534502780FEE6F1AB5BD4F49947FD036DBD7E905269AF46EF28B0FC07487EE4F5D20FB3C0AF8E700F3A2FA3414970CBED44FEDFF80CE78D800F184BB82435D137AADA2C6C16523247930A63B85661D1FC817A51ACD96168E95898A1F83A79FFB529368AA7833ABD1B0C3AEDDB14D2E1A2F71D99F763F");
2552    g = BN_new();
2553    BN_set_word(g, 2);
2554    q = BN_new();
2555    BN_rshift1(q, p);
2556
2557    BN_bin2bn((const unsigned char *)secret, strlen(secret), bnsecret);
2558
2559    ctx = JPAKE_CTX_new(us, them, p, g, q, bnsecret);
2560    BN_free(bnsecret);
2561    BN_free(q);
2562    BN_free(g);
2563    BN_free(p);
2564
2565    return ctx;
2566}
2567
2568static void jpake_send_part(BIO *conn, const JPAKE_STEP_PART *p)
2569{
2570    BN_print(conn, p->gx);
2571    BIO_puts(conn, "\n");
2572    BN_print(conn, p->zkpx.gr);
2573    BIO_puts(conn, "\n");
2574    BN_print(conn, p->zkpx.b);
2575    BIO_puts(conn, "\n");
2576}
2577
2578static void jpake_send_step1(BIO *bconn, JPAKE_CTX *ctx)
2579{
2580    JPAKE_STEP1 s1;
2581
2582    JPAKE_STEP1_init(&s1);
2583    JPAKE_STEP1_generate(&s1, ctx);
2584    jpake_send_part(bconn, &s1.p1);
2585    jpake_send_part(bconn, &s1.p2);
2586    (void)BIO_flush(bconn);
2587    JPAKE_STEP1_release(&s1);
2588}
2589
2590static void jpake_send_step2(BIO *bconn, JPAKE_CTX *ctx)
2591{
2592    JPAKE_STEP2 s2;
2593
2594    JPAKE_STEP2_init(&s2);
2595    JPAKE_STEP2_generate(&s2, ctx);
2596    jpake_send_part(bconn, &s2);
2597    (void)BIO_flush(bconn);
2598    JPAKE_STEP2_release(&s2);
2599}
2600
2601static void jpake_send_step3a(BIO *bconn, JPAKE_CTX *ctx)
2602{
2603    JPAKE_STEP3A s3a;
2604
2605    JPAKE_STEP3A_init(&s3a);
2606    JPAKE_STEP3A_generate(&s3a, ctx);
2607    BIO_write(bconn, s3a.hhk, sizeof(s3a.hhk));
2608    (void)BIO_flush(bconn);
2609    JPAKE_STEP3A_release(&s3a);
2610}
2611
2612static void jpake_send_step3b(BIO *bconn, JPAKE_CTX *ctx)
2613{
2614    JPAKE_STEP3B s3b;
2615
2616    JPAKE_STEP3B_init(&s3b);
2617    JPAKE_STEP3B_generate(&s3b, ctx);
2618    BIO_write(bconn, s3b.hk, sizeof(s3b.hk));
2619    (void)BIO_flush(bconn);
2620    JPAKE_STEP3B_release(&s3b);
2621}
2622
2623static void readbn(BIGNUM **bn, BIO *bconn)
2624{
2625    char buf[10240];
2626    int l;
2627
2628    l = BIO_gets(bconn, buf, sizeof(buf));
2629    assert(l > 0);
2630    assert(buf[l - 1] == '\n');
2631    buf[l - 1] = '\0';
2632    BN_hex2bn(bn, buf);
2633}
2634
2635static void jpake_receive_part(JPAKE_STEP_PART *p, BIO *bconn)
2636{
2637    readbn(&p->gx, bconn);
2638    readbn(&p->zkpx.gr, bconn);
2639    readbn(&p->zkpx.b, bconn);
2640}
2641
2642static void jpake_receive_step1(JPAKE_CTX *ctx, BIO *bconn)
2643{
2644    JPAKE_STEP1 s1;
2645
2646    JPAKE_STEP1_init(&s1);
2647    jpake_receive_part(&s1.p1, bconn);
2648    jpake_receive_part(&s1.p2, bconn);
2649    if (!JPAKE_STEP1_process(ctx, &s1)) {
2650        ERR_print_errors(bio_err);
2651        exit(1);
2652    }
2653    JPAKE_STEP1_release(&s1);
2654}
2655
2656static void jpake_receive_step2(JPAKE_CTX *ctx, BIO *bconn)
2657{
2658    JPAKE_STEP2 s2;
2659
2660    JPAKE_STEP2_init(&s2);
2661    jpake_receive_part(&s2, bconn);
2662    if (!JPAKE_STEP2_process(ctx, &s2)) {
2663        ERR_print_errors(bio_err);
2664        exit(1);
2665    }
2666    JPAKE_STEP2_release(&s2);
2667}
2668
2669static void jpake_receive_step3a(JPAKE_CTX *ctx, BIO *bconn)
2670{
2671    JPAKE_STEP3A s3a;
2672    int l;
2673
2674    JPAKE_STEP3A_init(&s3a);
2675    l = BIO_read(bconn, s3a.hhk, sizeof(s3a.hhk));
2676    assert(l == sizeof(s3a.hhk));
2677    if (!JPAKE_STEP3A_process(ctx, &s3a)) {
2678        ERR_print_errors(bio_err);
2679        exit(1);
2680    }
2681    JPAKE_STEP3A_release(&s3a);
2682}
2683
2684static void jpake_receive_step3b(JPAKE_CTX *ctx, BIO *bconn)
2685{
2686    JPAKE_STEP3B s3b;
2687    int l;
2688
2689    JPAKE_STEP3B_init(&s3b);
2690    l = BIO_read(bconn, s3b.hk, sizeof(s3b.hk));
2691    assert(l == sizeof(s3b.hk));
2692    if (!JPAKE_STEP3B_process(ctx, &s3b)) {
2693        ERR_print_errors(bio_err);
2694        exit(1);
2695    }
2696    JPAKE_STEP3B_release(&s3b);
2697}
2698
2699void jpake_client_auth(BIO *out, BIO *conn, const char *secret)
2700{
2701    JPAKE_CTX *ctx;
2702    BIO *bconn;
2703
2704    BIO_puts(out, "Authenticating with JPAKE\n");
2705
2706    ctx = jpake_init("client", "server", secret);
2707
2708    bconn = BIO_new(BIO_f_buffer());
2709    BIO_push(bconn, conn);
2710
2711    jpake_send_step1(bconn, ctx);
2712    jpake_receive_step1(ctx, bconn);
2713    jpake_send_step2(bconn, ctx);
2714    jpake_receive_step2(ctx, bconn);
2715    jpake_send_step3a(bconn, ctx);
2716    jpake_receive_step3b(ctx, bconn);
2717
2718    BIO_puts(out, "JPAKE authentication succeeded, setting PSK\n");
2719
2720    if (psk_key)
2721        OPENSSL_free(psk_key);
2722
2723    psk_key = BN_bn2hex(JPAKE_get_shared_key(ctx));
2724
2725    BIO_pop(bconn);
2726    BIO_free(bconn);
2727
2728    JPAKE_CTX_free(ctx);
2729}
2730
2731void jpake_server_auth(BIO *out, BIO *conn, const char *secret)
2732{
2733    JPAKE_CTX *ctx;
2734    BIO *bconn;
2735
2736    BIO_puts(out, "Authenticating with JPAKE\n");
2737
2738    ctx = jpake_init("server", "client", secret);
2739
2740    bconn = BIO_new(BIO_f_buffer());
2741    BIO_push(bconn, conn);
2742
2743    jpake_receive_step1(ctx, bconn);
2744    jpake_send_step1(bconn, ctx);
2745    jpake_receive_step2(ctx, bconn);
2746    jpake_send_step2(bconn, ctx);
2747    jpake_receive_step3a(ctx, bconn);
2748    jpake_send_step3b(bconn, ctx);
2749
2750    BIO_puts(out, "JPAKE authentication succeeded, setting PSK\n");
2751
2752    if (psk_key)
2753        OPENSSL_free(psk_key);
2754
2755    psk_key = BN_bn2hex(JPAKE_get_shared_key(ctx));
2756
2757    BIO_pop(bconn);
2758    BIO_free(bconn);
2759
2760    JPAKE_CTX_free(ctx);
2761}
2762
2763#endif
2764
2765#ifndef OPENSSL_NO_TLSEXT
2766/*-
2767 * next_protos_parse parses a comma separated list of strings into a string
2768 * in a format suitable for passing to SSL_CTX_set_next_protos_advertised.
2769 *   outlen: (output) set to the length of the resulting buffer on success.
2770 *   err: (maybe NULL) on failure, an error message line is written to this BIO.
2771 *   in: a NUL termianted string like "abc,def,ghi"
2772 *
2773 *   returns: a malloced buffer or NULL on failure.
2774 */
2775unsigned char *next_protos_parse(unsigned short *outlen, const char *in)
2776{
2777    size_t len;
2778    unsigned char *out;
2779    size_t i, start = 0;
2780
2781    len = strlen(in);
2782    if (len >= 65535)
2783        return NULL;
2784
2785    out = OPENSSL_malloc(strlen(in) + 1);
2786    if (!out)
2787        return NULL;
2788
2789    for (i = 0; i <= len; ++i) {
2790        if (i == len || in[i] == ',') {
2791            if (i - start > 255) {
2792                OPENSSL_free(out);
2793                return NULL;
2794            }
2795            out[start] = (unsigned char)(i - start);
2796            start = i + 1;
2797        } else
2798            out[i + 1] = in[i];
2799    }
2800
2801    *outlen = (unsigned char)(len + 1);
2802    return out;
2803}
2804#endif                          /* ndef OPENSSL_NO_TLSEXT */
2805
2806void print_cert_checks(BIO *bio, X509 *x,
2807                       const char *checkhost,
2808                       const char *checkemail, const char *checkip)
2809{
2810    if (x == NULL)
2811        return;
2812    if (checkhost) {
2813        BIO_printf(bio, "Hostname %s does%s match certificate\n",
2814                   checkhost, X509_check_host(x, checkhost, 0, 0, NULL) == 1
2815                   ? "" : " NOT");
2816    }
2817
2818    if (checkemail) {
2819        BIO_printf(bio, "Email %s does%s match certificate\n",
2820                   checkemail, X509_check_email(x, checkemail, 0,
2821                                                0) ? "" : " NOT");
2822    }
2823
2824    if (checkip) {
2825        BIO_printf(bio, "IP %s does%s match certificate\n",
2826                   checkip, X509_check_ip_asc(x, checkip, 0) ? "" : " NOT");
2827    }
2828}
2829
2830/* Get first http URL from a DIST_POINT structure */
2831
2832static const char *get_dp_url(DIST_POINT *dp)
2833{
2834    GENERAL_NAMES *gens;
2835    GENERAL_NAME *gen;
2836    int i, gtype;
2837    ASN1_STRING *uri;
2838    if (!dp->distpoint || dp->distpoint->type != 0)
2839        return NULL;
2840    gens = dp->distpoint->name.fullname;
2841    for (i = 0; i < sk_GENERAL_NAME_num(gens); i++) {
2842        gen = sk_GENERAL_NAME_value(gens, i);
2843        uri = GENERAL_NAME_get0_value(gen, &gtype);
2844        if (gtype == GEN_URI && ASN1_STRING_length(uri) > 6) {
2845            char *uptr = (char *)ASN1_STRING_data(uri);
2846            if (!strncmp(uptr, "http://", 7))
2847                return uptr;
2848        }
2849    }
2850    return NULL;
2851}
2852
2853/*
2854 * Look through a CRLDP structure and attempt to find an http URL to
2855 * downloads a CRL from.
2856 */
2857
2858static X509_CRL *load_crl_crldp(STACK_OF(DIST_POINT) *crldp)
2859{
2860    int i;
2861    const char *urlptr = NULL;
2862    for (i = 0; i < sk_DIST_POINT_num(crldp); i++) {
2863        DIST_POINT *dp = sk_DIST_POINT_value(crldp, i);
2864        urlptr = get_dp_url(dp);
2865        if (urlptr)
2866            return load_crl(urlptr, FORMAT_HTTP);
2867    }
2868    return NULL;
2869}
2870
2871/*
2872 * Example of downloading CRLs from CRLDP: not usable for real world as it
2873 * always downloads, doesn't support non-blocking I/O and doesn't cache
2874 * anything.
2875 */
2876
2877static STACK_OF(X509_CRL) *crls_http_cb(X509_STORE_CTX *ctx, X509_NAME *nm)
2878{
2879    X509 *x;
2880    STACK_OF(X509_CRL) *crls = NULL;
2881    X509_CRL *crl;
2882    STACK_OF(DIST_POINT) *crldp;
2883    x = X509_STORE_CTX_get_current_cert(ctx);
2884    crldp = X509_get_ext_d2i(x, NID_crl_distribution_points, NULL, NULL);
2885    crl = load_crl_crldp(crldp);
2886    sk_DIST_POINT_pop_free(crldp, DIST_POINT_free);
2887    if (!crl)
2888        return NULL;
2889    crls = sk_X509_CRL_new_null();
2890    sk_X509_CRL_push(crls, crl);
2891    /* Try to download delta CRL */
2892    crldp = X509_get_ext_d2i(x, NID_freshest_crl, NULL, NULL);
2893    crl = load_crl_crldp(crldp);
2894    sk_DIST_POINT_pop_free(crldp, DIST_POINT_free);
2895    if (crl)
2896        sk_X509_CRL_push(crls, crl);
2897    return crls;
2898}
2899
2900void store_setup_crl_download(X509_STORE *st)
2901{
2902    X509_STORE_set_lookup_crls_cb(st, crls_http_cb);
2903}
2904
2905/*
2906 * Platform-specific sections
2907 */
2908#if defined(_WIN32)
2909# ifdef fileno
2910#  undef fileno
2911#  define fileno(a) (int)_fileno(a)
2912# endif
2913
2914# include <windows.h>
2915# include <tchar.h>
2916
2917static int WIN32_rename(const char *from, const char *to)
2918{
2919    TCHAR *tfrom = NULL, *tto;
2920    DWORD err;
2921    int ret = 0;
2922
2923    if (sizeof(TCHAR) == 1) {
2924        tfrom = (TCHAR *)from;
2925        tto = (TCHAR *)to;
2926    } else {                    /* UNICODE path */
2927
2928        size_t i, flen = strlen(from) + 1, tlen = strlen(to) + 1;
2929        tfrom = (TCHAR *)malloc(sizeof(TCHAR) * (flen + tlen));
2930        if (tfrom == NULL)
2931            goto err;
2932        tto = tfrom + flen;
2933# if !defined(_WIN32_WCE) || _WIN32_WCE>=101
2934        if (!MultiByteToWideChar(CP_ACP, 0, from, flen, (WCHAR *)tfrom, flen))
2935# endif
2936            for (i = 0; i < flen; i++)
2937                tfrom[i] = (TCHAR)from[i];
2938# if !defined(_WIN32_WCE) || _WIN32_WCE>=101
2939        if (!MultiByteToWideChar(CP_ACP, 0, to, tlen, (WCHAR *)tto, tlen))
2940# endif
2941            for (i = 0; i < tlen; i++)
2942                tto[i] = (TCHAR)to[i];
2943    }
2944
2945    if (MoveFile(tfrom, tto))
2946        goto ok;
2947    err = GetLastError();
2948    if (err == ERROR_ALREADY_EXISTS || err == ERROR_FILE_EXISTS) {
2949        if (DeleteFile(tto) && MoveFile(tfrom, tto))
2950            goto ok;
2951        err = GetLastError();
2952    }
2953    if (err == ERROR_FILE_NOT_FOUND || err == ERROR_PATH_NOT_FOUND)
2954        errno = ENOENT;
2955    else if (err == ERROR_ACCESS_DENIED)
2956        errno = EACCES;
2957    else
2958        errno = EINVAL;         /* we could map more codes... */
2959 err:
2960    ret = -1;
2961 ok:
2962    if (tfrom != NULL && tfrom != (TCHAR *)from)
2963        free(tfrom);
2964    return ret;
2965}
2966#endif
2967
2968/* app_tminterval section */
2969#if defined(_WIN32)
2970double app_tminterval(int stop, int usertime)
2971{
2972    FILETIME now;
2973    double ret = 0;
2974    static ULARGE_INTEGER tmstart;
2975    static int warning = 1;
2976# ifdef _WIN32_WINNT
2977    static HANDLE proc = NULL;
2978
2979    if (proc == NULL) {
2980        if (check_winnt())
2981            proc = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE,
2982                               GetCurrentProcessId());
2983        if (proc == NULL)
2984            proc = (HANDLE) - 1;
2985    }
2986
2987    if (usertime && proc != (HANDLE) - 1) {
2988        FILETIME junk;
2989        GetProcessTimes(proc, &junk, &junk, &junk, &now);
2990    } else
2991# endif
2992    {
2993        SYSTEMTIME systime;
2994
2995        if (usertime && warning) {
2996            BIO_printf(bio_err, "To get meaningful results, run "
2997                       "this program on idle system.\n");
2998            warning = 0;
2999        }
3000        GetSystemTime(&systime);
3001        SystemTimeToFileTime(&systime, &now);
3002    }
3003
3004    if (stop == TM_START) {
3005        tmstart.u.LowPart = now.dwLowDateTime;
3006        tmstart.u.HighPart = now.dwHighDateTime;
3007    } else {
3008        ULARGE_INTEGER tmstop;
3009
3010        tmstop.u.LowPart = now.dwLowDateTime;
3011        tmstop.u.HighPart = now.dwHighDateTime;
3012
3013        ret = (__int64)(tmstop.QuadPart - tmstart.QuadPart) * 1e-7;
3014    }
3015
3016    return (ret);
3017}
3018
3019#elif defined(OPENSSL_SYS_NETWARE)
3020# include <time.h>
3021
3022double app_tminterval(int stop, int usertime)
3023{
3024    double ret = 0;
3025    static clock_t tmstart;
3026    static int warning = 1;
3027
3028    if (usertime && warning) {
3029        BIO_printf(bio_err, "To get meaningful results, run "
3030                   "this program on idle system.\n");
3031        warning = 0;
3032    }
3033
3034    if (stop == TM_START)
3035        tmstart = clock();
3036    else
3037        ret = (clock() - tmstart) / (double)CLOCKS_PER_SEC;
3038
3039    return (ret);
3040}
3041
3042#elif defined(OPENSSL_SYSTEM_VXWORKS)
3043# include <time.h>
3044
3045double app_tminterval(int stop, int usertime)
3046{
3047    double ret = 0;
3048# ifdef CLOCK_REALTIME
3049    static struct timespec tmstart;
3050    struct timespec now;
3051# else
3052    static unsigned long tmstart;
3053    unsigned long now;
3054# endif
3055    static int warning = 1;
3056
3057    if (usertime && warning) {
3058        BIO_printf(bio_err, "To get meaningful results, run "
3059                   "this program on idle system.\n");
3060        warning = 0;
3061    }
3062# ifdef CLOCK_REALTIME
3063    clock_gettime(CLOCK_REALTIME, &now);
3064    if (stop == TM_START)
3065        tmstart = now;
3066    else
3067        ret = ((now.tv_sec + now.tv_nsec * 1e-9)
3068               - (tmstart.tv_sec + tmstart.tv_nsec * 1e-9));
3069# else
3070    now = tickGet();
3071    if (stop == TM_START)
3072        tmstart = now;
3073    else
3074        ret = (now - tmstart) / (double)sysClkRateGet();
3075# endif
3076    return (ret);
3077}
3078
3079#elif defined(OPENSSL_SYSTEM_VMS)
3080# include <time.h>
3081# include <times.h>
3082
3083double app_tminterval(int stop, int usertime)
3084{
3085    static clock_t tmstart;
3086    double ret = 0;
3087    clock_t now;
3088# ifdef __TMS
3089    struct tms rus;
3090
3091    now = times(&rus);
3092    if (usertime)
3093        now = rus.tms_utime;
3094# else
3095    if (usertime)
3096        now = clock();          /* sum of user and kernel times */
3097    else {
3098        struct timeval tv;
3099        gettimeofday(&tv, NULL);
3100        now = (clock_t)((unsigned long long)tv.tv_sec * CLK_TCK +
3101                        (unsigned long long)tv.tv_usec * (1000000 / CLK_TCK)
3102            );
3103    }
3104# endif
3105    if (stop == TM_START)
3106        tmstart = now;
3107    else
3108        ret = (now - tmstart) / (double)(CLK_TCK);
3109
3110    return (ret);
3111}
3112
3113#elif defined(_SC_CLK_TCK)      /* by means of unistd.h */
3114# include <sys/times.h>
3115
3116double app_tminterval(int stop, int usertime)
3117{
3118    double ret = 0;
3119    struct tms rus;
3120    clock_t now = times(&rus);
3121    static clock_t tmstart;
3122
3123    if (usertime)
3124        now = rus.tms_utime;
3125
3126    if (stop == TM_START)
3127        tmstart = now;
3128    else {
3129        long int tck = sysconf(_SC_CLK_TCK);
3130        ret = (now - tmstart) / (double)tck;
3131    }
3132
3133    return (ret);
3134}
3135
3136#else
3137# include <sys/time.h>
3138# include <sys/resource.h>
3139
3140double app_tminterval(int stop, int usertime)
3141{
3142    double ret = 0;
3143    struct rusage rus;
3144    struct timeval now;
3145    static struct timeval tmstart;
3146
3147    if (usertime)
3148        getrusage(RUSAGE_SELF, &rus), now = rus.ru_utime;
3149    else
3150        gettimeofday(&now, NULL);
3151
3152    if (stop == TM_START)
3153        tmstart = now;
3154    else
3155        ret = ((now.tv_sec + now.tv_usec * 1e-6)
3156               - (tmstart.tv_sec + tmstart.tv_usec * 1e-6));
3157
3158    return ret;
3159}
3160#endif
3161
3162/* app_isdir section */
3163#ifdef _WIN32
3164int app_isdir(const char *name)
3165{
3166    HANDLE hList;
3167    WIN32_FIND_DATA FileData;
3168# if defined(UNICODE) || defined(_UNICODE)
3169    size_t i, len_0 = strlen(name) + 1;
3170
3171    if (len_0 > sizeof(FileData.cFileName) / sizeof(FileData.cFileName[0]))
3172        return -1;
3173
3174#  if !defined(_WIN32_WCE) || _WIN32_WCE>=101
3175    if (!MultiByteToWideChar
3176        (CP_ACP, 0, name, len_0, FileData.cFileName, len_0))
3177#  endif
3178        for (i = 0; i < len_0; i++)
3179            FileData.cFileName[i] = (WCHAR)name[i];
3180
3181    hList = FindFirstFile(FileData.cFileName, &FileData);
3182# else
3183    hList = FindFirstFile(name, &FileData);
3184# endif
3185    if (hList == INVALID_HANDLE_VALUE)
3186        return -1;
3187    FindClose(hList);
3188    return ((FileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0);
3189}
3190#else
3191# include <sys/stat.h>
3192# ifndef S_ISDIR
3193#  if defined(_S_IFMT) && defined(_S_IFDIR)
3194#   define S_ISDIR(a)   (((a) & _S_IFMT) == _S_IFDIR)
3195#  else
3196#   define S_ISDIR(a)   (((a) & S_IFMT) == S_IFDIR)
3197#  endif
3198# endif
3199
3200int app_isdir(const char *name)
3201{
3202# if defined(S_ISDIR)
3203    struct stat st;
3204
3205    if (stat(name, &st) == 0)
3206        return S_ISDIR(st.st_mode);
3207    else
3208        return -1;
3209# else
3210    return -1;
3211# endif
3212}
3213#endif
3214
3215/* raw_read|write section */
3216#if defined(__VMS)
3217# include "vms_term_sock.h"
3218static int stdin_sock = -1;
3219
3220static void close_stdin_sock(void)
3221{
3222    TerminalSocket (TERM_SOCK_DELETE, &stdin_sock);
3223}
3224
3225int fileno_stdin(void)
3226{
3227    if (stdin_sock == -1) {
3228        TerminalSocket(TERM_SOCK_CREATE, &stdin_sock);
3229        atexit(close_stdin_sock);
3230    }
3231
3232    return stdin_sock;
3233}
3234#else
3235int fileno_stdin(void)
3236{
3237    return fileno(stdin);
3238}
3239#endif
3240
3241int fileno_stdout(void)
3242{
3243    return fileno(stdout);
3244}
3245
3246#if defined(_WIN32) && defined(STD_INPUT_HANDLE)
3247int raw_read_stdin(void *buf, int siz)
3248{
3249    DWORD n;
3250    if (ReadFile(GetStdHandle(STD_INPUT_HANDLE), buf, siz, &n, NULL))
3251        return (n);
3252    else
3253        return (-1);
3254}
3255#elif defined(__VMS)
3256#include <sys/socket.h>
3257
3258int raw_read_stdin(void *buf, int siz)
3259{
3260    return recv(fileno_stdin(), buf, siz, 0);
3261}
3262#else
3263int raw_read_stdin(void *buf, int siz)
3264{
3265    return read(fileno_stdin(), buf, siz);
3266}
3267#endif
3268
3269#if defined(_WIN32) && defined(STD_OUTPUT_HANDLE)
3270int raw_write_stdout(const void *buf, int siz)
3271{
3272    DWORD n;
3273    if (WriteFile(GetStdHandle(STD_OUTPUT_HANDLE), buf, siz, &n, NULL))
3274        return (n);
3275    else
3276        return (-1);
3277}
3278#else
3279int raw_write_stdout(const void *buf, int siz)
3280{
3281    return write(fileno_stdout(), buf, siz);
3282}
3283#endif
3284