apps.c revision 312826
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#endif
152
153typedef struct {
154    const char *name;
155    unsigned long flag;
156    unsigned long mask;
157} NAME_EX_TBL;
158
159static UI_METHOD *ui_method = NULL;
160
161static int set_table_opts(unsigned long *flags, const char *arg,
162                          const NAME_EX_TBL * in_tbl);
163static int set_multi_opts(unsigned long *flags, const char *arg,
164                          const NAME_EX_TBL * in_tbl);
165
166#if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
167/* Looks like this stuff is worth moving into separate function */
168static EVP_PKEY *load_netscape_key(BIO *err, BIO *key, const char *file,
169                                   const char *key_descrip, int format);
170#endif
171
172int app_init(long mesgwin);
173#ifdef undef                    /* never finished - probably never will be
174                                 * :-) */
175int args_from_file(char *file, int *argc, char **argv[])
176{
177    FILE *fp;
178    int num, i;
179    unsigned int len;
180    static char *buf = NULL;
181    static char **arg = NULL;
182    char *p;
183
184    fp = fopen(file, "r");
185    if (fp == NULL)
186        return (0);
187
188    if (fseek(fp, 0, SEEK_END) == 0)
189        len = ftell(fp), rewind(fp);
190    else
191        len = -1;
192    if (len <= 0) {
193        fclose(fp);
194        return (0);
195    }
196
197    *argc = 0;
198    *argv = NULL;
199
200    if (buf != NULL)
201        OPENSSL_free(buf);
202    buf = (char *)OPENSSL_malloc(len + 1);
203    if (buf == NULL)
204        return (0);
205
206    len = fread(buf, 1, len, fp);
207    if (len <= 1)
208        return (0);
209    buf[len] = '\0';
210
211    i = 0;
212    for (p = buf; *p; p++)
213        if (*p == '\n')
214            i++;
215    if (arg != NULL)
216        OPENSSL_free(arg);
217    arg = (char **)OPENSSL_malloc(sizeof(char *) * (i * 2));
218    if (arg == NULL)
219        return 0;
220    *argv = arg;
221    num = 0;
222    p = buf;
223    for (;;) {
224        if (!*p)
225            break;
226        if (*p == '#') {        /* comment line */
227            while (*p && (*p != '\n'))
228                p++;
229            continue;
230        }
231        /* else we have a line */
232        *(arg++) = p;
233        num++;
234        while (*p && ((*p != ' ') && (*p != '\t') && (*p != '\n')))
235            p++;
236        if (!*p)
237            break;
238        if (*p == '\n') {
239            *(p++) = '\0';
240            continue;
241        }
242        /* else it is a tab or space */
243        p++;
244        while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n')))
245            p++;
246        if (!*p)
247            break;
248        if (*p == '\n') {
249            p++;
250            continue;
251        }
252        *(arg++) = p++;
253        num++;
254        while (*p && (*p != '\n'))
255            p++;
256        if (!*p)
257            break;
258        /* else *p == '\n' */
259        *(p++) = '\0';
260    }
261    *argc = num;
262    return (1);
263}
264#endif
265
266int str2fmt(char *s)
267{
268    if (s == NULL)
269        return FORMAT_UNDEF;
270    if ((*s == 'D') || (*s == 'd'))
271        return (FORMAT_ASN1);
272    else if ((*s == 'T') || (*s == 't'))
273        return (FORMAT_TEXT);
274    else if ((*s == 'N') || (*s == 'n'))
275        return (FORMAT_NETSCAPE);
276    else if ((*s == 'S') || (*s == 's'))
277        return (FORMAT_SMIME);
278    else if ((*s == 'M') || (*s == 'm'))
279        return (FORMAT_MSBLOB);
280    else if ((*s == '1')
281             || (strcmp(s, "PKCS12") == 0) || (strcmp(s, "pkcs12") == 0)
282             || (strcmp(s, "P12") == 0) || (strcmp(s, "p12") == 0))
283        return (FORMAT_PKCS12);
284    else if ((*s == 'E') || (*s == 'e'))
285        return (FORMAT_ENGINE);
286    else if ((*s == 'H') || (*s == 'h'))
287        return FORMAT_HTTP;
288    else if ((*s == 'P') || (*s == 'p')) {
289        if (s[1] == 'V' || s[1] == 'v')
290            return FORMAT_PVK;
291        else
292            return (FORMAT_PEM);
293    } else
294        return (FORMAT_UNDEF);
295}
296
297#if defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16) || defined(OPENSSL_SYS_NETWARE)
298void program_name(char *in, char *out, int size)
299{
300    int i, n;
301    char *p = NULL;
302
303    n = strlen(in);
304    /* find the last '/', '\' or ':' */
305    for (i = n - 1; i > 0; i--) {
306        if ((in[i] == '/') || (in[i] == '\\') || (in[i] == ':')) {
307            p = &(in[i + 1]);
308            break;
309        }
310    }
311    if (p == NULL)
312        p = in;
313    n = strlen(p);
314
315# if defined(OPENSSL_SYS_NETWARE)
316    /* strip off trailing .nlm if present. */
317    if ((n > 4) && (p[n - 4] == '.') &&
318        ((p[n - 3] == 'n') || (p[n - 3] == 'N')) &&
319        ((p[n - 2] == 'l') || (p[n - 2] == 'L')) &&
320        ((p[n - 1] == 'm') || (p[n - 1] == 'M')))
321        n -= 4;
322# else
323    /* strip off trailing .exe if present. */
324    if ((n > 4) && (p[n - 4] == '.') &&
325        ((p[n - 3] == 'e') || (p[n - 3] == 'E')) &&
326        ((p[n - 2] == 'x') || (p[n - 2] == 'X')) &&
327        ((p[n - 1] == 'e') || (p[n - 1] == 'E')))
328        n -= 4;
329# endif
330
331    if (n > size - 1)
332        n = size - 1;
333
334    for (i = 0; i < n; i++) {
335        if ((p[i] >= 'A') && (p[i] <= 'Z'))
336            out[i] = p[i] - 'A' + 'a';
337        else
338            out[i] = p[i];
339    }
340    out[n] = '\0';
341}
342#else
343# ifdef OPENSSL_SYS_VMS
344void program_name(char *in, char *out, int size)
345{
346    char *p = in, *q;
347    char *chars = ":]>";
348
349    while (*chars != '\0') {
350        q = strrchr(p, *chars);
351        if (q > p)
352            p = q + 1;
353        chars++;
354    }
355
356    q = strrchr(p, '.');
357    if (q == NULL)
358        q = p + strlen(p);
359    strncpy(out, p, size - 1);
360    if (q - p >= size) {
361        out[size - 1] = '\0';
362    } else {
363        out[q - p] = '\0';
364    }
365}
366# else
367void program_name(char *in, char *out, int size)
368{
369    char *p;
370
371    p = strrchr(in, '/');
372    if (p != NULL)
373        p++;
374    else
375        p = in;
376    BUF_strlcpy(out, p, size);
377}
378# endif
379#endif
380
381int chopup_args(ARGS *arg, char *buf, int *argc, char **argv[])
382{
383    int num, i;
384    char *p;
385
386    *argc = 0;
387    *argv = NULL;
388
389    i = 0;
390    if (arg->count == 0) {
391        arg->count = 20;
392        arg->data = (char **)OPENSSL_malloc(sizeof(char *) * arg->count);
393        if (arg->data == NULL)
394            return 0;
395    }
396    for (i = 0; i < arg->count; i++)
397        arg->data[i] = NULL;
398
399    num = 0;
400    p = buf;
401    for (;;) {
402        /* first scan over white space */
403        if (!*p)
404            break;
405        while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n')))
406            p++;
407        if (!*p)
408            break;
409
410        /* The start of something good :-) */
411        if (num >= arg->count) {
412            char **tmp_p;
413            int tlen = arg->count + 20;
414            tmp_p = (char **)OPENSSL_realloc(arg->data,
415                                             sizeof(char *) * tlen);
416            if (tmp_p == NULL)
417                return 0;
418            arg->data = tmp_p;
419            arg->count = tlen;
420            /* initialize newly allocated data */
421            for (i = num; i < arg->count; i++)
422                arg->data[i] = NULL;
423        }
424        arg->data[num++] = p;
425
426        /* now look for the end of this */
427        if ((*p == '\'') || (*p == '\"')) { /* scan for closing quote */
428            i = *(p++);
429            arg->data[num - 1]++; /* jump over quote */
430            while (*p && (*p != i))
431                p++;
432            *p = '\0';
433        } else {
434            while (*p && ((*p != ' ') && (*p != '\t') && (*p != '\n')))
435                p++;
436
437            if (*p == '\0')
438                p--;
439            else
440                *p = '\0';
441        }
442        p++;
443    }
444    *argc = num;
445    *argv = arg->data;
446    return (1);
447}
448
449#ifndef APP_INIT
450int app_init(long mesgwin)
451{
452    return (1);
453}
454#endif
455
456int dump_cert_text(BIO *out, X509 *x)
457{
458    char *p;
459
460    p = X509_NAME_oneline(X509_get_subject_name(x), NULL, 0);
461    BIO_puts(out, "subject=");
462    BIO_puts(out, p);
463    OPENSSL_free(p);
464
465    p = X509_NAME_oneline(X509_get_issuer_name(x), NULL, 0);
466    BIO_puts(out, "\nissuer=");
467    BIO_puts(out, p);
468    BIO_puts(out, "\n");
469    OPENSSL_free(p);
470
471    return 0;
472}
473
474static int ui_open(UI *ui)
475{
476    return UI_method_get_opener(UI_OpenSSL())(ui);
477}
478
479static int ui_read(UI *ui, UI_STRING *uis)
480{
481    if (UI_get_input_flags(uis) & UI_INPUT_FLAG_DEFAULT_PWD
482        && UI_get0_user_data(ui)) {
483        switch (UI_get_string_type(uis)) {
484        case UIT_PROMPT:
485        case UIT_VERIFY:
486            {
487                const char *password =
488                    ((PW_CB_DATA *)UI_get0_user_data(ui))->password;
489                if (password && password[0] != '\0') {
490                    UI_set_result(ui, uis, password);
491                    return 1;
492                }
493            }
494        default:
495            break;
496        }
497    }
498    return UI_method_get_reader(UI_OpenSSL())(ui, uis);
499}
500
501static int ui_write(UI *ui, UI_STRING *uis)
502{
503    if (UI_get_input_flags(uis) & UI_INPUT_FLAG_DEFAULT_PWD
504        && UI_get0_user_data(ui)) {
505        switch (UI_get_string_type(uis)) {
506        case UIT_PROMPT:
507        case UIT_VERIFY:
508            {
509                const char *password =
510                    ((PW_CB_DATA *)UI_get0_user_data(ui))->password;
511                if (password && password[0] != '\0')
512                    return 1;
513            }
514        default:
515            break;
516        }
517    }
518    return UI_method_get_writer(UI_OpenSSL())(ui, uis);
519}
520
521static int ui_close(UI *ui)
522{
523    return UI_method_get_closer(UI_OpenSSL())(ui);
524}
525
526int setup_ui_method(void)
527{
528    ui_method = UI_create_method("OpenSSL application user interface");
529    UI_method_set_opener(ui_method, ui_open);
530    UI_method_set_reader(ui_method, ui_read);
531    UI_method_set_writer(ui_method, ui_write);
532    UI_method_set_closer(ui_method, ui_close);
533    return 0;
534}
535
536void destroy_ui_method(void)
537{
538    if (ui_method) {
539        UI_destroy_method(ui_method);
540        ui_method = NULL;
541    }
542}
543
544int password_callback(char *buf, int bufsiz, int verify, PW_CB_DATA *cb_tmp)
545{
546    UI *ui = NULL;
547    int res = 0;
548    const char *prompt_info = NULL;
549    const char *password = NULL;
550    PW_CB_DATA *cb_data = (PW_CB_DATA *)cb_tmp;
551
552    if (cb_data) {
553        if (cb_data->password)
554            password = cb_data->password;
555        if (cb_data->prompt_info)
556            prompt_info = cb_data->prompt_info;
557    }
558
559    if (password) {
560        res = strlen(password);
561        if (res > bufsiz)
562            res = bufsiz;
563        memcpy(buf, password, res);
564        return res;
565    }
566
567    ui = UI_new_method(ui_method);
568    if (ui) {
569        int ok = 0;
570        char *buff = NULL;
571        int ui_flags = 0;
572        char *prompt = NULL;
573
574        prompt = UI_construct_prompt(ui, "pass phrase", prompt_info);
575        if (!prompt) {
576            BIO_printf(bio_err, "Out of memory\n");
577            UI_free(ui);
578            return 0;
579        }
580
581        ui_flags |= UI_INPUT_FLAG_DEFAULT_PWD;
582        UI_ctrl(ui, UI_CTRL_PRINT_ERRORS, 1, 0, 0);
583
584        if (ok >= 0)
585            ok = UI_add_input_string(ui, prompt, ui_flags, buf,
586                                     PW_MIN_LENGTH, bufsiz - 1);
587        if (ok >= 0 && verify) {
588            buff = (char *)OPENSSL_malloc(bufsiz);
589            if (!buff) {
590                BIO_printf(bio_err, "Out of memory\n");
591                UI_free(ui);
592                OPENSSL_free(prompt);
593                return 0;
594            }
595            ok = UI_add_verify_string(ui, prompt, ui_flags, buff,
596                                      PW_MIN_LENGTH, bufsiz - 1, buf);
597        }
598        if (ok >= 0)
599            do {
600                ok = UI_process(ui);
601            }
602            while (ok < 0 && UI_ctrl(ui, UI_CTRL_IS_REDOABLE, 0, 0, 0));
603
604        if (buff) {
605            OPENSSL_cleanse(buff, (unsigned int)bufsiz);
606            OPENSSL_free(buff);
607        }
608
609        if (ok >= 0)
610            res = strlen(buf);
611        if (ok == -1) {
612            BIO_printf(bio_err, "User interface error\n");
613            ERR_print_errors(bio_err);
614            OPENSSL_cleanse(buf, (unsigned int)bufsiz);
615            res = 0;
616        }
617        if (ok == -2) {
618            BIO_printf(bio_err, "aborted!\n");
619            OPENSSL_cleanse(buf, (unsigned int)bufsiz);
620            res = 0;
621        }
622        UI_free(ui);
623        OPENSSL_free(prompt);
624    }
625    return res;
626}
627
628static char *app_get_pass(BIO *err, char *arg, int keepbio);
629
630int app_passwd(BIO *err, char *arg1, char *arg2, char **pass1, char **pass2)
631{
632    int same;
633    if (!arg2 || !arg1 || strcmp(arg1, arg2))
634        same = 0;
635    else
636        same = 1;
637    if (arg1) {
638        *pass1 = app_get_pass(err, arg1, same);
639        if (!*pass1)
640            return 0;
641    } else if (pass1)
642        *pass1 = NULL;
643    if (arg2) {
644        *pass2 = app_get_pass(err, arg2, same ? 2 : 0);
645        if (!*pass2)
646            return 0;
647    } else if (pass2)
648        *pass2 = NULL;
649    return 1;
650}
651
652static char *app_get_pass(BIO *err, char *arg, int keepbio)
653{
654    char *tmp, tpass[APP_PASS_LEN];
655    static BIO *pwdbio = NULL;
656    int i;
657    if (!strncmp(arg, "pass:", 5))
658        return BUF_strdup(arg + 5);
659    if (!strncmp(arg, "env:", 4)) {
660        tmp = getenv(arg + 4);
661        if (!tmp) {
662            BIO_printf(err, "Can't read environment variable %s\n", arg + 4);
663            return NULL;
664        }
665        return BUF_strdup(tmp);
666    }
667    if (!keepbio || !pwdbio) {
668        if (!strncmp(arg, "file:", 5)) {
669            pwdbio = BIO_new_file(arg + 5, "r");
670            if (!pwdbio) {
671                BIO_printf(err, "Can't open file %s\n", arg + 5);
672                return NULL;
673            }
674#if !defined(_WIN32)
675            /*
676             * Under _WIN32, which covers even Win64 and CE, file
677             * descriptors referenced by BIO_s_fd are not inherited
678             * by child process and therefore below is not an option.
679             * It could have been an option if bss_fd.c was operating
680             * on real Windows descriptors, such as those obtained
681             * with CreateFile.
682             */
683        } else if (!strncmp(arg, "fd:", 3)) {
684            BIO *btmp;
685            i = atoi(arg + 3);
686            if (i >= 0)
687                pwdbio = BIO_new_fd(i, BIO_NOCLOSE);
688            if ((i < 0) || !pwdbio) {
689                BIO_printf(err, "Can't access file descriptor %s\n", arg + 3);
690                return NULL;
691            }
692            /*
693             * Can't do BIO_gets on an fd BIO so add a buffering BIO
694             */
695            btmp = BIO_new(BIO_f_buffer());
696            pwdbio = BIO_push(btmp, pwdbio);
697#endif
698        } else if (!strcmp(arg, "stdin")) {
699            pwdbio = BIO_new_fp(stdin, BIO_NOCLOSE);
700            if (!pwdbio) {
701                BIO_printf(err, "Can't open BIO for stdin\n");
702                return NULL;
703            }
704        } else {
705            BIO_printf(err, "Invalid password argument \"%s\"\n", arg);
706            return NULL;
707        }
708    }
709    i = BIO_gets(pwdbio, tpass, APP_PASS_LEN);
710    if (keepbio != 1) {
711        BIO_free_all(pwdbio);
712        pwdbio = NULL;
713    }
714    if (i <= 0) {
715        BIO_printf(err, "Error reading password from BIO\n");
716        return NULL;
717    }
718    tmp = strchr(tpass, '\n');
719    if (tmp)
720        *tmp = 0;
721    return BUF_strdup(tpass);
722}
723
724int add_oid_section(BIO *err, CONF *conf)
725{
726    char *p;
727    STACK_OF(CONF_VALUE) *sktmp;
728    CONF_VALUE *cnf;
729    int i;
730    if (!(p = NCONF_get_string(conf, NULL, "oid_section"))) {
731        ERR_clear_error();
732        return 1;
733    }
734    if (!(sktmp = NCONF_get_section(conf, p))) {
735        BIO_printf(err, "problem loading oid section %s\n", p);
736        return 0;
737    }
738    for (i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
739        cnf = sk_CONF_VALUE_value(sktmp, i);
740        if (OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
741            BIO_printf(err, "problem creating object %s=%s\n",
742                       cnf->name, cnf->value);
743            return 0;
744        }
745    }
746    return 1;
747}
748
749static int load_pkcs12(BIO *err, BIO *in, const char *desc,
750                       pem_password_cb *pem_cb, void *cb_data,
751                       EVP_PKEY **pkey, X509 **cert, STACK_OF(X509) **ca)
752{
753    const char *pass;
754    char tpass[PEM_BUFSIZE];
755    int len, ret = 0;
756    PKCS12 *p12;
757    p12 = d2i_PKCS12_bio(in, NULL);
758    if (p12 == NULL) {
759        BIO_printf(err, "Error loading PKCS12 file for %s\n", desc);
760        goto die;
761    }
762    /* See if an empty password will do */
763    if (PKCS12_verify_mac(p12, "", 0) || PKCS12_verify_mac(p12, NULL, 0))
764        pass = "";
765    else {
766        if (!pem_cb)
767            pem_cb = (pem_password_cb *)password_callback;
768        len = pem_cb(tpass, PEM_BUFSIZE, 0, cb_data);
769        if (len < 0) {
770            BIO_printf(err, "Passpharse callback error for %s\n", desc);
771            goto die;
772        }
773        if (len < PEM_BUFSIZE)
774            tpass[len] = 0;
775        if (!PKCS12_verify_mac(p12, tpass, len)) {
776            BIO_printf(err,
777                       "Mac verify error (wrong password?) in PKCS12 file for %s\n",
778                       desc);
779            goto die;
780        }
781        pass = tpass;
782    }
783    ret = PKCS12_parse(p12, pass, pkey, cert, ca);
784 die:
785    if (p12)
786        PKCS12_free(p12);
787    return ret;
788}
789
790int load_cert_crl_http(const char *url, BIO *err,
791                       X509 **pcert, X509_CRL **pcrl)
792{
793    char *host = NULL, *port = NULL, *path = NULL;
794    BIO *bio = NULL;
795    OCSP_REQ_CTX *rctx = NULL;
796    int use_ssl, rv = 0;
797    if (!OCSP_parse_url(url, &host, &port, &path, &use_ssl))
798        goto err;
799    if (use_ssl) {
800        if (err)
801            BIO_puts(err, "https not supported\n");
802        goto err;
803    }
804    bio = BIO_new_connect(host);
805    if (!bio || !BIO_set_conn_port(bio, port))
806        goto err;
807    rctx = OCSP_REQ_CTX_new(bio, 1024);
808    if (!rctx)
809        goto err;
810    if (!OCSP_REQ_CTX_http(rctx, "GET", path))
811        goto err;
812    if (!OCSP_REQ_CTX_add1_header(rctx, "Host", host))
813        goto err;
814    if (pcert) {
815        do {
816            rv = X509_http_nbio(rctx, pcert);
817        }
818        while (rv == -1);
819    } else {
820        do {
821            rv = X509_CRL_http_nbio(rctx, pcrl);
822        } while (rv == -1);
823    }
824
825 err:
826    if (host)
827        OPENSSL_free(host);
828    if (path)
829        OPENSSL_free(path);
830    if (port)
831        OPENSSL_free(port);
832    if (bio)
833        BIO_free_all(bio);
834    if (rctx)
835        OCSP_REQ_CTX_free(rctx);
836    if (rv != 1) {
837        if (bio && err)
838            BIO_printf(bio_err, "Error loading %s from %s\n",
839                       pcert ? "certificate" : "CRL", url);
840        ERR_print_errors(bio_err);
841    }
842    return rv;
843}
844
845X509 *load_cert(BIO *err, const char *file, int format,
846                const char *pass, ENGINE *e, const char *cert_descrip)
847{
848    X509 *x = NULL;
849    BIO *cert;
850
851    if (format == FORMAT_HTTP) {
852        load_cert_crl_http(file, err, &x, NULL);
853        return x;
854    }
855
856    if ((cert = BIO_new(BIO_s_file())) == NULL) {
857        ERR_print_errors(err);
858        goto end;
859    }
860
861    if (file == NULL) {
862#ifdef _IONBF
863# ifndef OPENSSL_NO_SETVBUF_IONBF
864        setvbuf(stdin, NULL, _IONBF, 0);
865# endif                         /* ndef OPENSSL_NO_SETVBUF_IONBF */
866#endif
867        BIO_set_fp(cert, stdin, BIO_NOCLOSE);
868    } else {
869        if (BIO_read_filename(cert, file) <= 0) {
870            BIO_printf(err, "Error opening %s %s\n", cert_descrip, file);
871            ERR_print_errors(err);
872            goto end;
873        }
874    }
875
876    if (format == FORMAT_ASN1)
877        x = d2i_X509_bio(cert, NULL);
878    else if (format == FORMAT_NETSCAPE) {
879        NETSCAPE_X509 *nx;
880        nx = ASN1_item_d2i_bio(ASN1_ITEM_rptr(NETSCAPE_X509), cert, NULL);
881        if (nx == NULL)
882            goto end;
883
884        if ((strncmp(NETSCAPE_CERT_HDR, (char *)nx->header->data,
885                     nx->header->length) != 0)) {
886            NETSCAPE_X509_free(nx);
887            BIO_printf(err, "Error reading header on certificate\n");
888            goto end;
889        }
890        x = nx->cert;
891        nx->cert = NULL;
892        NETSCAPE_X509_free(nx);
893    } else if (format == FORMAT_PEM)
894        x = PEM_read_bio_X509_AUX(cert, NULL,
895                                  (pem_password_cb *)password_callback, NULL);
896    else if (format == FORMAT_PKCS12) {
897        if (!load_pkcs12(err, cert, cert_descrip, NULL, NULL, NULL, &x, NULL))
898            goto end;
899    } else {
900        BIO_printf(err, "bad input format specified for %s\n", cert_descrip);
901        goto end;
902    }
903 end:
904    if (x == NULL) {
905        BIO_printf(err, "unable to load certificate\n");
906        ERR_print_errors(err);
907    }
908    if (cert != NULL)
909        BIO_free(cert);
910    return (x);
911}
912
913X509_CRL *load_crl(const char *infile, int format)
914{
915    X509_CRL *x = NULL;
916    BIO *in = NULL;
917
918    if (format == FORMAT_HTTP) {
919        load_cert_crl_http(infile, bio_err, NULL, &x);
920        return x;
921    }
922
923    in = BIO_new(BIO_s_file());
924    if (in == NULL) {
925        ERR_print_errors(bio_err);
926        goto end;
927    }
928
929    if (infile == NULL)
930        BIO_set_fp(in, stdin, BIO_NOCLOSE);
931    else {
932        if (BIO_read_filename(in, infile) <= 0) {
933            perror(infile);
934            goto end;
935        }
936    }
937    if (format == FORMAT_ASN1)
938        x = d2i_X509_CRL_bio(in, NULL);
939    else if (format == FORMAT_PEM)
940        x = PEM_read_bio_X509_CRL(in, NULL, NULL, NULL);
941    else {
942        BIO_printf(bio_err, "bad input format specified for input crl\n");
943        goto end;
944    }
945    if (x == NULL) {
946        BIO_printf(bio_err, "unable to load CRL\n");
947        ERR_print_errors(bio_err);
948        goto end;
949    }
950
951 end:
952    BIO_free(in);
953    return (x);
954}
955
956EVP_PKEY *load_key(BIO *err, const char *file, int format, int maybe_stdin,
957                   const char *pass, ENGINE *e, const char *key_descrip)
958{
959    BIO *key = NULL;
960    EVP_PKEY *pkey = NULL;
961    PW_CB_DATA cb_data;
962
963    cb_data.password = pass;
964    cb_data.prompt_info = file;
965
966    if (file == NULL && (!maybe_stdin || format == FORMAT_ENGINE)) {
967        BIO_printf(err, "no keyfile specified\n");
968        goto end;
969    }
970#ifndef OPENSSL_NO_ENGINE
971    if (format == FORMAT_ENGINE) {
972        if (!e)
973            BIO_printf(err, "no engine specified\n");
974        else {
975            if (ENGINE_init(e)) {
976                pkey = ENGINE_load_private_key(e, file, ui_method, &cb_data);
977                ENGINE_finish(e);
978            }
979            if (!pkey) {
980                BIO_printf(err, "cannot load %s from engine\n", key_descrip);
981                ERR_print_errors(err);
982            }
983        }
984        goto end;
985    }
986#endif
987    key = BIO_new(BIO_s_file());
988    if (key == NULL) {
989        ERR_print_errors(err);
990        goto end;
991    }
992    if (file == NULL && maybe_stdin) {
993#ifdef _IONBF
994# ifndef OPENSSL_NO_SETVBUF_IONBF
995        setvbuf(stdin, NULL, _IONBF, 0);
996# endif                         /* ndef OPENSSL_NO_SETVBUF_IONBF */
997#endif
998        BIO_set_fp(key, stdin, BIO_NOCLOSE);
999    } else if (BIO_read_filename(key, file) <= 0) {
1000        BIO_printf(err, "Error opening %s %s\n", key_descrip, file);
1001        ERR_print_errors(err);
1002        goto end;
1003    }
1004    if (format == FORMAT_ASN1) {
1005        pkey = d2i_PrivateKey_bio(key, NULL);
1006    } else if (format == FORMAT_PEM) {
1007        pkey = PEM_read_bio_PrivateKey(key, NULL,
1008                                       (pem_password_cb *)password_callback,
1009                                       &cb_data);
1010    }
1011#if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
1012    else if (format == FORMAT_NETSCAPE || format == FORMAT_IISSGC)
1013        pkey = load_netscape_key(err, key, file, key_descrip, format);
1014#endif
1015    else if (format == FORMAT_PKCS12) {
1016        if (!load_pkcs12(err, key, key_descrip,
1017                         (pem_password_cb *)password_callback, &cb_data,
1018                         &pkey, NULL, NULL))
1019            goto end;
1020    }
1021#if !defined(OPENSSL_NO_RSA) && !defined(OPENSSL_NO_DSA) && !defined (OPENSSL_NO_RC4)
1022    else if (format == FORMAT_MSBLOB)
1023        pkey = b2i_PrivateKey_bio(key);
1024    else if (format == FORMAT_PVK)
1025        pkey = b2i_PVK_bio(key, (pem_password_cb *)password_callback,
1026                           &cb_data);
1027#endif
1028    else {
1029        BIO_printf(err, "bad input format specified for key file\n");
1030        goto end;
1031    }
1032 end:
1033    if (key != NULL)
1034        BIO_free(key);
1035    if (pkey == NULL) {
1036        BIO_printf(err, "unable to load %s\n", key_descrip);
1037        ERR_print_errors(err);
1038    }
1039    return (pkey);
1040}
1041
1042EVP_PKEY *load_pubkey(BIO *err, const char *file, int format, int maybe_stdin,
1043                      const char *pass, ENGINE *e, const char *key_descrip)
1044{
1045    BIO *key = NULL;
1046    EVP_PKEY *pkey = NULL;
1047    PW_CB_DATA cb_data;
1048
1049    cb_data.password = pass;
1050    cb_data.prompt_info = file;
1051
1052    if (file == NULL && (!maybe_stdin || format == FORMAT_ENGINE)) {
1053        BIO_printf(err, "no keyfile specified\n");
1054        goto end;
1055    }
1056#ifndef OPENSSL_NO_ENGINE
1057    if (format == FORMAT_ENGINE) {
1058        if (!e)
1059            BIO_printf(bio_err, "no engine specified\n");
1060        else
1061            pkey = ENGINE_load_public_key(e, file, ui_method, &cb_data);
1062        goto end;
1063    }
1064#endif
1065    key = BIO_new(BIO_s_file());
1066    if (key == NULL) {
1067        ERR_print_errors(err);
1068        goto end;
1069    }
1070    if (file == NULL && maybe_stdin) {
1071#ifdef _IONBF
1072# ifndef OPENSSL_NO_SETVBUF_IONBF
1073        setvbuf(stdin, NULL, _IONBF, 0);
1074# endif                         /* ndef OPENSSL_NO_SETVBUF_IONBF */
1075#endif
1076        BIO_set_fp(key, stdin, BIO_NOCLOSE);
1077    } else if (BIO_read_filename(key, file) <= 0) {
1078        BIO_printf(err, "Error opening %s %s\n", key_descrip, file);
1079        ERR_print_errors(err);
1080        goto end;
1081    }
1082    if (format == FORMAT_ASN1) {
1083        pkey = d2i_PUBKEY_bio(key, NULL);
1084    }
1085#ifndef OPENSSL_NO_RSA
1086    else if (format == FORMAT_ASN1RSA) {
1087        RSA *rsa;
1088        rsa = d2i_RSAPublicKey_bio(key, NULL);
1089        if (rsa) {
1090            pkey = EVP_PKEY_new();
1091            if (pkey)
1092                EVP_PKEY_set1_RSA(pkey, rsa);
1093            RSA_free(rsa);
1094        } else
1095            pkey = NULL;
1096    } else if (format == FORMAT_PEMRSA) {
1097        RSA *rsa;
1098        rsa = PEM_read_bio_RSAPublicKey(key, NULL,
1099                                        (pem_password_cb *)password_callback,
1100                                        &cb_data);
1101        if (rsa) {
1102            pkey = EVP_PKEY_new();
1103            if (pkey)
1104                EVP_PKEY_set1_RSA(pkey, rsa);
1105            RSA_free(rsa);
1106        } else
1107            pkey = NULL;
1108    }
1109#endif
1110    else if (format == FORMAT_PEM) {
1111        pkey = PEM_read_bio_PUBKEY(key, NULL,
1112                                   (pem_password_cb *)password_callback,
1113                                   &cb_data);
1114    }
1115#if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
1116    else if (format == FORMAT_NETSCAPE || format == FORMAT_IISSGC)
1117        pkey = load_netscape_key(err, key, file, key_descrip, format);
1118#endif
1119#if !defined(OPENSSL_NO_RSA) && !defined(OPENSSL_NO_DSA)
1120    else if (format == FORMAT_MSBLOB)
1121        pkey = b2i_PublicKey_bio(key);
1122#endif
1123    else {
1124        BIO_printf(err, "bad input format specified for key file\n");
1125        goto end;
1126    }
1127 end:
1128    if (key != NULL)
1129        BIO_free(key);
1130    if (pkey == NULL)
1131        BIO_printf(err, "unable to load %s\n", key_descrip);
1132    return (pkey);
1133}
1134
1135#if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
1136static EVP_PKEY *load_netscape_key(BIO *err, BIO *key, const char *file,
1137                                   const char *key_descrip, int format)
1138{
1139    EVP_PKEY *pkey;
1140    BUF_MEM *buf;
1141    RSA *rsa;
1142    const unsigned char *p;
1143    int size, i;
1144
1145    buf = BUF_MEM_new();
1146    pkey = EVP_PKEY_new();
1147    size = 0;
1148    if (buf == NULL || pkey == NULL)
1149        goto error;
1150    for (;;) {
1151        if (!BUF_MEM_grow_clean(buf, size + 1024 * 10))
1152            goto error;
1153        i = BIO_read(key, &(buf->data[size]), 1024 * 10);
1154        size += i;
1155        if (i == 0)
1156            break;
1157        if (i < 0) {
1158            BIO_printf(err, "Error reading %s %s", key_descrip, file);
1159            goto error;
1160        }
1161    }
1162    p = (unsigned char *)buf->data;
1163    rsa = d2i_RSA_NET(NULL, &p, (long)size, NULL,
1164                      (format == FORMAT_IISSGC ? 1 : 0));
1165    if (rsa == NULL)
1166        goto error;
1167    BUF_MEM_free(buf);
1168    EVP_PKEY_set1_RSA(pkey, rsa);
1169    return pkey;
1170 error:
1171    BUF_MEM_free(buf);
1172    EVP_PKEY_free(pkey);
1173    return NULL;
1174}
1175#endif                          /* ndef OPENSSL_NO_RC4 */
1176
1177static int load_certs_crls(BIO *err, const char *file, int format,
1178                           const char *pass, ENGINE *e, const char *desc,
1179                           STACK_OF(X509) **pcerts,
1180                           STACK_OF(X509_CRL) **pcrls)
1181{
1182    int i;
1183    BIO *bio;
1184    STACK_OF(X509_INFO) *xis = NULL;
1185    X509_INFO *xi;
1186    PW_CB_DATA cb_data;
1187    int rv = 0;
1188
1189    cb_data.password = pass;
1190    cb_data.prompt_info = file;
1191
1192    if (format != FORMAT_PEM) {
1193        BIO_printf(err, "bad input format specified for %s\n", desc);
1194        return 0;
1195    }
1196
1197    if (file == NULL)
1198        bio = BIO_new_fp(stdin, BIO_NOCLOSE);
1199    else
1200        bio = BIO_new_file(file, "r");
1201
1202    if (bio == NULL) {
1203        BIO_printf(err, "Error opening %s %s\n", desc, file ? file : "stdin");
1204        ERR_print_errors(err);
1205        return 0;
1206    }
1207
1208    xis = PEM_X509_INFO_read_bio(bio, NULL,
1209                                 (pem_password_cb *)password_callback,
1210                                 &cb_data);
1211
1212    BIO_free(bio);
1213
1214    if (pcerts) {
1215        *pcerts = sk_X509_new_null();
1216        if (!*pcerts)
1217            goto end;
1218    }
1219
1220    if (pcrls) {
1221        *pcrls = sk_X509_CRL_new_null();
1222        if (!*pcrls)
1223            goto end;
1224    }
1225
1226    for (i = 0; i < sk_X509_INFO_num(xis); i++) {
1227        xi = sk_X509_INFO_value(xis, i);
1228        if (xi->x509 && pcerts) {
1229            if (!sk_X509_push(*pcerts, xi->x509))
1230                goto end;
1231            xi->x509 = NULL;
1232        }
1233        if (xi->crl && pcrls) {
1234            if (!sk_X509_CRL_push(*pcrls, xi->crl))
1235                goto end;
1236            xi->crl = NULL;
1237        }
1238    }
1239
1240    if (pcerts && sk_X509_num(*pcerts) > 0)
1241        rv = 1;
1242
1243    if (pcrls && sk_X509_CRL_num(*pcrls) > 0)
1244        rv = 1;
1245
1246 end:
1247
1248    if (xis)
1249        sk_X509_INFO_pop_free(xis, X509_INFO_free);
1250
1251    if (rv == 0) {
1252        if (pcerts) {
1253            sk_X509_pop_free(*pcerts, X509_free);
1254            *pcerts = NULL;
1255        }
1256        if (pcrls) {
1257            sk_X509_CRL_pop_free(*pcrls, X509_CRL_free);
1258            *pcrls = NULL;
1259        }
1260        BIO_printf(err, "unable to load %s\n",
1261                   pcerts ? "certificates" : "CRLs");
1262        ERR_print_errors(err);
1263    }
1264    return rv;
1265}
1266
1267STACK_OF(X509) *load_certs(BIO *err, const char *file, int format,
1268                           const char *pass, ENGINE *e, const char *desc)
1269{
1270    STACK_OF(X509) *certs;
1271    if (!load_certs_crls(err, file, format, pass, e, desc, &certs, NULL))
1272        return NULL;
1273    return certs;
1274}
1275
1276STACK_OF(X509_CRL) *load_crls(BIO *err, const char *file, int format,
1277                              const char *pass, ENGINE *e, const char *desc)
1278{
1279    STACK_OF(X509_CRL) *crls;
1280    if (!load_certs_crls(err, file, format, pass, e, desc, NULL, &crls))
1281        return NULL;
1282    return crls;
1283}
1284
1285#define X509V3_EXT_UNKNOWN_MASK         (0xfL << 16)
1286/* Return error for unknown extensions */
1287#define X509V3_EXT_DEFAULT              0
1288/* Print error for unknown extensions */
1289#define X509V3_EXT_ERROR_UNKNOWN        (1L << 16)
1290/* ASN1 parse unknown extensions */
1291#define X509V3_EXT_PARSE_UNKNOWN        (2L << 16)
1292/* BIO_dump unknown extensions */
1293#define X509V3_EXT_DUMP_UNKNOWN         (3L << 16)
1294
1295#define X509_FLAG_CA (X509_FLAG_NO_ISSUER | X509_FLAG_NO_PUBKEY | \
1296                         X509_FLAG_NO_HEADER | X509_FLAG_NO_VERSION)
1297
1298int set_cert_ex(unsigned long *flags, const char *arg)
1299{
1300    static const NAME_EX_TBL cert_tbl[] = {
1301        {"compatible", X509_FLAG_COMPAT, 0xffffffffl},
1302        {"ca_default", X509_FLAG_CA, 0xffffffffl},
1303        {"no_header", X509_FLAG_NO_HEADER, 0},
1304        {"no_version", X509_FLAG_NO_VERSION, 0},
1305        {"no_serial", X509_FLAG_NO_SERIAL, 0},
1306        {"no_signame", X509_FLAG_NO_SIGNAME, 0},
1307        {"no_validity", X509_FLAG_NO_VALIDITY, 0},
1308        {"no_subject", X509_FLAG_NO_SUBJECT, 0},
1309        {"no_issuer", X509_FLAG_NO_ISSUER, 0},
1310        {"no_pubkey", X509_FLAG_NO_PUBKEY, 0},
1311        {"no_extensions", X509_FLAG_NO_EXTENSIONS, 0},
1312        {"no_sigdump", X509_FLAG_NO_SIGDUMP, 0},
1313        {"no_aux", X509_FLAG_NO_AUX, 0},
1314        {"no_attributes", X509_FLAG_NO_ATTRIBUTES, 0},
1315        {"ext_default", X509V3_EXT_DEFAULT, X509V3_EXT_UNKNOWN_MASK},
1316        {"ext_error", X509V3_EXT_ERROR_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1317        {"ext_parse", X509V3_EXT_PARSE_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1318        {"ext_dump", X509V3_EXT_DUMP_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1319        {NULL, 0, 0}
1320    };
1321    return set_multi_opts(flags, arg, cert_tbl);
1322}
1323
1324int set_name_ex(unsigned long *flags, const char *arg)
1325{
1326    static const NAME_EX_TBL ex_tbl[] = {
1327        {"esc_2253", ASN1_STRFLGS_ESC_2253, 0},
1328        {"esc_ctrl", ASN1_STRFLGS_ESC_CTRL, 0},
1329        {"esc_msb", ASN1_STRFLGS_ESC_MSB, 0},
1330        {"use_quote", ASN1_STRFLGS_ESC_QUOTE, 0},
1331        {"utf8", ASN1_STRFLGS_UTF8_CONVERT, 0},
1332        {"ignore_type", ASN1_STRFLGS_IGNORE_TYPE, 0},
1333        {"show_type", ASN1_STRFLGS_SHOW_TYPE, 0},
1334        {"dump_all", ASN1_STRFLGS_DUMP_ALL, 0},
1335        {"dump_nostr", ASN1_STRFLGS_DUMP_UNKNOWN, 0},
1336        {"dump_der", ASN1_STRFLGS_DUMP_DER, 0},
1337        {"compat", XN_FLAG_COMPAT, 0xffffffffL},
1338        {"sep_comma_plus", XN_FLAG_SEP_COMMA_PLUS, XN_FLAG_SEP_MASK},
1339        {"sep_comma_plus_space", XN_FLAG_SEP_CPLUS_SPC, XN_FLAG_SEP_MASK},
1340        {"sep_semi_plus_space", XN_FLAG_SEP_SPLUS_SPC, XN_FLAG_SEP_MASK},
1341        {"sep_multiline", XN_FLAG_SEP_MULTILINE, XN_FLAG_SEP_MASK},
1342        {"dn_rev", XN_FLAG_DN_REV, 0},
1343        {"nofname", XN_FLAG_FN_NONE, XN_FLAG_FN_MASK},
1344        {"sname", XN_FLAG_FN_SN, XN_FLAG_FN_MASK},
1345        {"lname", XN_FLAG_FN_LN, XN_FLAG_FN_MASK},
1346        {"align", XN_FLAG_FN_ALIGN, 0},
1347        {"oid", XN_FLAG_FN_OID, XN_FLAG_FN_MASK},
1348        {"space_eq", XN_FLAG_SPC_EQ, 0},
1349        {"dump_unknown", XN_FLAG_DUMP_UNKNOWN_FIELDS, 0},
1350        {"RFC2253", XN_FLAG_RFC2253, 0xffffffffL},
1351        {"oneline", XN_FLAG_ONELINE, 0xffffffffL},
1352        {"multiline", XN_FLAG_MULTILINE, 0xffffffffL},
1353        {"ca_default", XN_FLAG_MULTILINE, 0xffffffffL},
1354        {NULL, 0, 0}
1355    };
1356    if (set_multi_opts(flags, arg, ex_tbl) == 0)
1357        return 0;
1358    if ((*flags & XN_FLAG_SEP_MASK) == 0)
1359        *flags |= XN_FLAG_SEP_CPLUS_SPC;
1360    return 1;
1361}
1362
1363int set_ext_copy(int *copy_type, const char *arg)
1364{
1365    if (!strcasecmp(arg, "none"))
1366        *copy_type = EXT_COPY_NONE;
1367    else if (!strcasecmp(arg, "copy"))
1368        *copy_type = EXT_COPY_ADD;
1369    else if (!strcasecmp(arg, "copyall"))
1370        *copy_type = EXT_COPY_ALL;
1371    else
1372        return 0;
1373    return 1;
1374}
1375
1376int copy_extensions(X509 *x, X509_REQ *req, int copy_type)
1377{
1378    STACK_OF(X509_EXTENSION) *exts = NULL;
1379    X509_EXTENSION *ext, *tmpext;
1380    ASN1_OBJECT *obj;
1381    int i, idx, ret = 0;
1382    if (!x || !req || (copy_type == EXT_COPY_NONE))
1383        return 1;
1384    exts = X509_REQ_get_extensions(req);
1385
1386    for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
1387        ext = sk_X509_EXTENSION_value(exts, i);
1388        obj = X509_EXTENSION_get_object(ext);
1389        idx = X509_get_ext_by_OBJ(x, obj, -1);
1390        /* Does extension exist? */
1391        if (idx != -1) {
1392            /* If normal copy don't override existing extension */
1393            if (copy_type == EXT_COPY_ADD)
1394                continue;
1395            /* Delete all extensions of same type */
1396            do {
1397                tmpext = X509_get_ext(x, idx);
1398                X509_delete_ext(x, idx);
1399                X509_EXTENSION_free(tmpext);
1400                idx = X509_get_ext_by_OBJ(x, obj, -1);
1401            } while (idx != -1);
1402        }
1403        if (!X509_add_ext(x, ext, -1))
1404            goto end;
1405    }
1406
1407    ret = 1;
1408
1409 end:
1410
1411    sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
1412
1413    return ret;
1414}
1415
1416static int set_multi_opts(unsigned long *flags, const char *arg,
1417                          const NAME_EX_TBL * in_tbl)
1418{
1419    STACK_OF(CONF_VALUE) *vals;
1420    CONF_VALUE *val;
1421    int i, ret = 1;
1422    if (!arg)
1423        return 0;
1424    vals = X509V3_parse_list(arg);
1425    for (i = 0; i < sk_CONF_VALUE_num(vals); i++) {
1426        val = sk_CONF_VALUE_value(vals, i);
1427        if (!set_table_opts(flags, val->name, in_tbl))
1428            ret = 0;
1429    }
1430    sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
1431    return ret;
1432}
1433
1434static int set_table_opts(unsigned long *flags, const char *arg,
1435                          const NAME_EX_TBL * in_tbl)
1436{
1437    char c;
1438    const NAME_EX_TBL *ptbl;
1439    c = arg[0];
1440
1441    if (c == '-') {
1442        c = 0;
1443        arg++;
1444    } else if (c == '+') {
1445        c = 1;
1446        arg++;
1447    } else
1448        c = 1;
1449
1450    for (ptbl = in_tbl; ptbl->name; ptbl++) {
1451        if (!strcasecmp(arg, ptbl->name)) {
1452            *flags &= ~ptbl->mask;
1453            if (c)
1454                *flags |= ptbl->flag;
1455            else
1456                *flags &= ~ptbl->flag;
1457            return 1;
1458        }
1459    }
1460    return 0;
1461}
1462
1463void print_name(BIO *out, const char *title, X509_NAME *nm,
1464                unsigned long lflags)
1465{
1466    char *buf;
1467    char mline = 0;
1468    int indent = 0;
1469
1470    if (title)
1471        BIO_puts(out, title);
1472    if ((lflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
1473        mline = 1;
1474        indent = 4;
1475    }
1476    if (lflags == XN_FLAG_COMPAT) {
1477        buf = X509_NAME_oneline(nm, 0, 0);
1478        BIO_puts(out, buf);
1479        BIO_puts(out, "\n");
1480        OPENSSL_free(buf);
1481    } else {
1482        if (mline)
1483            BIO_puts(out, "\n");
1484        X509_NAME_print_ex(out, nm, indent, lflags);
1485        BIO_puts(out, "\n");
1486    }
1487}
1488
1489X509_STORE *setup_verify(BIO *bp, char *CAfile, char *CApath)
1490{
1491    X509_STORE *store;
1492    X509_LOOKUP *lookup;
1493    if (!(store = X509_STORE_new()))
1494        goto end;
1495    lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file());
1496    if (lookup == NULL)
1497        goto end;
1498    if (CAfile) {
1499        if (!X509_LOOKUP_load_file(lookup, CAfile, X509_FILETYPE_PEM)) {
1500            BIO_printf(bp, "Error loading file %s\n", CAfile);
1501            goto end;
1502        }
1503    } else
1504        X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
1505
1506    lookup = X509_STORE_add_lookup(store, X509_LOOKUP_hash_dir());
1507    if (lookup == NULL)
1508        goto end;
1509    if (CApath) {
1510        if (!X509_LOOKUP_add_dir(lookup, CApath, X509_FILETYPE_PEM)) {
1511            BIO_printf(bp, "Error loading directory %s\n", CApath);
1512            goto end;
1513        }
1514    } else
1515        X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
1516
1517    ERR_clear_error();
1518    return store;
1519 end:
1520    X509_STORE_free(store);
1521    return NULL;
1522}
1523
1524#ifndef OPENSSL_NO_ENGINE
1525/* Try to load an engine in a shareable library */
1526static ENGINE *try_load_engine(BIO *err, const char *engine, int debug)
1527{
1528    ENGINE *e = ENGINE_by_id("dynamic");
1529    if (e) {
1530        if (!ENGINE_ctrl_cmd_string(e, "SO_PATH", engine, 0)
1531            || !ENGINE_ctrl_cmd_string(e, "LOAD", NULL, 0)) {
1532            ENGINE_free(e);
1533            e = NULL;
1534        }
1535    }
1536    return e;
1537}
1538#endif
1539
1540ENGINE *setup_engine(BIO *err, const char *engine, int debug)
1541{
1542    ENGINE *e = NULL;
1543
1544#ifndef OPENSSL_NO_ENGINE
1545    if (engine) {
1546        if (strcmp(engine, "auto") == 0) {
1547            BIO_printf(err, "enabling auto ENGINE support\n");
1548            ENGINE_register_all_complete();
1549            return NULL;
1550        }
1551        if ((e = ENGINE_by_id(engine)) == NULL
1552            && (e = try_load_engine(err, engine, debug)) == NULL) {
1553            BIO_printf(err, "invalid engine \"%s\"\n", engine);
1554            ERR_print_errors(err);
1555            return NULL;
1556        }
1557        if (debug) {
1558            ENGINE_ctrl(e, ENGINE_CTRL_SET_LOGSTREAM, 0, err, 0);
1559        }
1560        ENGINE_ctrl_cmd(e, "SET_USER_INTERFACE", 0, ui_method, 0, 1);
1561        if (!ENGINE_set_default(e, ENGINE_METHOD_ALL)) {
1562            BIO_printf(err, "can't use that engine\n");
1563            ERR_print_errors(err);
1564            ENGINE_free(e);
1565            return NULL;
1566        }
1567
1568        BIO_printf(err, "engine \"%s\" set.\n", ENGINE_get_id(e));
1569    }
1570#endif
1571    return e;
1572}
1573
1574void release_engine(ENGINE *e)
1575{
1576#ifndef OPENSSL_NO_ENGINE
1577    if (e != NULL)
1578        /* Free our "structural" reference. */
1579        ENGINE_free(e);
1580#endif
1581}
1582
1583int load_config(BIO *err, CONF *cnf)
1584{
1585    static int load_config_called = 0;
1586    if (load_config_called)
1587        return 1;
1588    load_config_called = 1;
1589    if (!cnf)
1590        cnf = config;
1591    if (!cnf)
1592        return 1;
1593
1594    OPENSSL_load_builtin_modules();
1595
1596    if (CONF_modules_load(cnf, NULL, 0) <= 0) {
1597        BIO_printf(err, "Error configuring OpenSSL\n");
1598        ERR_print_errors(err);
1599        return 0;
1600    }
1601    return 1;
1602}
1603
1604char *make_config_name()
1605{
1606    const char *t = X509_get_default_cert_area();
1607    size_t len;
1608    char *p;
1609
1610    len = strlen(t) + strlen(OPENSSL_CONF) + 2;
1611    p = OPENSSL_malloc(len);
1612    if (p == NULL)
1613        return NULL;
1614    BUF_strlcpy(p, t, len);
1615#ifndef OPENSSL_SYS_VMS
1616    BUF_strlcat(p, "/", len);
1617#endif
1618    BUF_strlcat(p, OPENSSL_CONF, len);
1619
1620    return p;
1621}
1622
1623static unsigned long index_serial_hash(const OPENSSL_CSTRING *a)
1624{
1625    const char *n;
1626
1627    n = a[DB_serial];
1628    while (*n == '0')
1629        n++;
1630    return (lh_strhash(n));
1631}
1632
1633static int index_serial_cmp(const OPENSSL_CSTRING *a,
1634                            const OPENSSL_CSTRING *b)
1635{
1636    const char *aa, *bb;
1637
1638    for (aa = a[DB_serial]; *aa == '0'; aa++) ;
1639    for (bb = b[DB_serial]; *bb == '0'; bb++) ;
1640    return (strcmp(aa, bb));
1641}
1642
1643static int index_name_qual(char **a)
1644{
1645    return (a[0][0] == 'V');
1646}
1647
1648static unsigned long index_name_hash(const OPENSSL_CSTRING *a)
1649{
1650    return (lh_strhash(a[DB_name]));
1651}
1652
1653int index_name_cmp(const OPENSSL_CSTRING *a, const OPENSSL_CSTRING *b)
1654{
1655    return (strcmp(a[DB_name], b[DB_name]));
1656}
1657
1658static IMPLEMENT_LHASH_HASH_FN(index_serial, OPENSSL_CSTRING)
1659static IMPLEMENT_LHASH_COMP_FN(index_serial, OPENSSL_CSTRING)
1660static IMPLEMENT_LHASH_HASH_FN(index_name, OPENSSL_CSTRING)
1661static IMPLEMENT_LHASH_COMP_FN(index_name, OPENSSL_CSTRING)
1662#undef BSIZE
1663#define BSIZE 256
1664BIGNUM *load_serial(char *serialfile, int create, ASN1_INTEGER **retai)
1665{
1666    BIO *in = NULL;
1667    BIGNUM *ret = NULL;
1668    MS_STATIC char buf[1024];
1669    ASN1_INTEGER *ai = NULL;
1670
1671    ai = ASN1_INTEGER_new();
1672    if (ai == NULL)
1673        goto err;
1674
1675    if ((in = BIO_new(BIO_s_file())) == NULL) {
1676        ERR_print_errors(bio_err);
1677        goto err;
1678    }
1679
1680    if (BIO_read_filename(in, serialfile) <= 0) {
1681        if (!create) {
1682            perror(serialfile);
1683            goto err;
1684        } else {
1685            ret = BN_new();
1686            if (ret == NULL || !rand_serial(ret, ai))
1687                BIO_printf(bio_err, "Out of memory\n");
1688        }
1689    } else {
1690        if (!a2i_ASN1_INTEGER(in, ai, buf, 1024)) {
1691            BIO_printf(bio_err, "unable to load number from %s\n",
1692                       serialfile);
1693            goto err;
1694        }
1695        ret = ASN1_INTEGER_to_BN(ai, NULL);
1696        if (ret == NULL) {
1697            BIO_printf(bio_err,
1698                       "error converting number from bin to BIGNUM\n");
1699            goto err;
1700        }
1701    }
1702
1703    if (ret && retai) {
1704        *retai = ai;
1705        ai = NULL;
1706    }
1707 err:
1708    if (in != NULL)
1709        BIO_free(in);
1710    if (ai != NULL)
1711        ASN1_INTEGER_free(ai);
1712    return (ret);
1713}
1714
1715int save_serial(char *serialfile, char *suffix, BIGNUM *serial,
1716                ASN1_INTEGER **retai)
1717{
1718    char buf[1][BSIZE];
1719    BIO *out = NULL;
1720    int ret = 0;
1721    ASN1_INTEGER *ai = NULL;
1722    int j;
1723
1724    if (suffix == NULL)
1725        j = strlen(serialfile);
1726    else
1727        j = strlen(serialfile) + strlen(suffix) + 1;
1728    if (j >= BSIZE) {
1729        BIO_printf(bio_err, "file name too long\n");
1730        goto err;
1731    }
1732
1733    if (suffix == NULL)
1734        BUF_strlcpy(buf[0], serialfile, BSIZE);
1735    else {
1736#ifndef OPENSSL_SYS_VMS
1737        j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s", serialfile, suffix);
1738#else
1739        j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s", serialfile, suffix);
1740#endif
1741    }
1742#ifdef RL_DEBUG
1743    BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[0]);
1744#endif
1745    out = BIO_new(BIO_s_file());
1746    if (out == NULL) {
1747        ERR_print_errors(bio_err);
1748        goto err;
1749    }
1750    if (BIO_write_filename(out, buf[0]) <= 0) {
1751        perror(serialfile);
1752        goto err;
1753    }
1754
1755    if ((ai = BN_to_ASN1_INTEGER(serial, NULL)) == NULL) {
1756        BIO_printf(bio_err, "error converting serial to ASN.1 format\n");
1757        goto err;
1758    }
1759    i2a_ASN1_INTEGER(out, ai);
1760    BIO_puts(out, "\n");
1761    ret = 1;
1762    if (retai) {
1763        *retai = ai;
1764        ai = NULL;
1765    }
1766 err:
1767    if (out != NULL)
1768        BIO_free_all(out);
1769    if (ai != NULL)
1770        ASN1_INTEGER_free(ai);
1771    return (ret);
1772}
1773
1774int rotate_serial(char *serialfile, char *new_suffix, char *old_suffix)
1775{
1776    char buf[5][BSIZE];
1777    int i, j;
1778
1779    i = strlen(serialfile) + strlen(old_suffix);
1780    j = strlen(serialfile) + strlen(new_suffix);
1781    if (i > j)
1782        j = i;
1783    if (j + 1 >= BSIZE) {
1784        BIO_printf(bio_err, "file name too long\n");
1785        goto err;
1786    }
1787#ifndef OPENSSL_SYS_VMS
1788    j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s", serialfile, new_suffix);
1789#else
1790    j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s", serialfile, new_suffix);
1791#endif
1792#ifndef OPENSSL_SYS_VMS
1793    j = BIO_snprintf(buf[1], sizeof buf[1], "%s.%s", serialfile, old_suffix);
1794#else
1795    j = BIO_snprintf(buf[1], sizeof buf[1], "%s-%s", serialfile, old_suffix);
1796#endif
1797#ifdef RL_DEBUG
1798    BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1799               serialfile, buf[1]);
1800#endif
1801    if (rename(serialfile, buf[1]) < 0 && errno != ENOENT
1802#ifdef ENOTDIR
1803        && errno != ENOTDIR
1804#endif
1805        ) {
1806        BIO_printf(bio_err,
1807                   "unable to rename %s to %s\n", serialfile, buf[1]);
1808        perror("reason");
1809        goto err;
1810    }
1811#ifdef RL_DEBUG
1812    BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1813               buf[0], serialfile);
1814#endif
1815    if (rename(buf[0], serialfile) < 0) {
1816        BIO_printf(bio_err,
1817                   "unable to rename %s to %s\n", buf[0], serialfile);
1818        perror("reason");
1819        rename(buf[1], serialfile);
1820        goto err;
1821    }
1822    return 1;
1823 err:
1824    return 0;
1825}
1826
1827int rand_serial(BIGNUM *b, ASN1_INTEGER *ai)
1828{
1829    BIGNUM *btmp;
1830    int ret = 0;
1831    if (b)
1832        btmp = b;
1833    else
1834        btmp = BN_new();
1835
1836    if (!btmp)
1837        return 0;
1838
1839    if (!BN_pseudo_rand(btmp, SERIAL_RAND_BITS, 0, 0))
1840        goto error;
1841    if (ai && !BN_to_ASN1_INTEGER(btmp, ai))
1842        goto error;
1843
1844    ret = 1;
1845
1846 error:
1847
1848    if (!b)
1849        BN_free(btmp);
1850
1851    return ret;
1852}
1853
1854CA_DB *load_index(char *dbfile, DB_ATTR *db_attr)
1855{
1856    CA_DB *retdb = NULL;
1857    TXT_DB *tmpdb = NULL;
1858    BIO *in = BIO_new(BIO_s_file());
1859    CONF *dbattr_conf = NULL;
1860    char buf[1][BSIZE];
1861    long errorline = -1;
1862
1863    if (in == NULL) {
1864        ERR_print_errors(bio_err);
1865        goto err;
1866    }
1867    if (BIO_read_filename(in, dbfile) <= 0) {
1868        perror(dbfile);
1869        BIO_printf(bio_err, "unable to open '%s'\n", dbfile);
1870        goto err;
1871    }
1872    if ((tmpdb = TXT_DB_read(in, DB_NUMBER)) == NULL)
1873        goto err;
1874
1875#ifndef OPENSSL_SYS_VMS
1876    BIO_snprintf(buf[0], sizeof buf[0], "%s.attr", dbfile);
1877#else
1878    BIO_snprintf(buf[0], sizeof buf[0], "%s-attr", dbfile);
1879#endif
1880    dbattr_conf = NCONF_new(NULL);
1881    if (NCONF_load(dbattr_conf, buf[0], &errorline) <= 0) {
1882        if (errorline > 0) {
1883            BIO_printf(bio_err,
1884                       "error on line %ld of db attribute file '%s'\n",
1885                       errorline, buf[0]);
1886            goto err;
1887        } else {
1888            NCONF_free(dbattr_conf);
1889            dbattr_conf = NULL;
1890        }
1891    }
1892
1893    if ((retdb = OPENSSL_malloc(sizeof(CA_DB))) == NULL) {
1894        fprintf(stderr, "Out of memory\n");
1895        goto err;
1896    }
1897
1898    retdb->db = tmpdb;
1899    tmpdb = NULL;
1900    if (db_attr)
1901        retdb->attributes = *db_attr;
1902    else {
1903        retdb->attributes.unique_subject = 1;
1904    }
1905
1906    if (dbattr_conf) {
1907        char *p = NCONF_get_string(dbattr_conf, NULL, "unique_subject");
1908        if (p) {
1909#ifdef RL_DEBUG
1910            BIO_printf(bio_err,
1911                       "DEBUG[load_index]: unique_subject = \"%s\"\n", p);
1912#endif
1913            retdb->attributes.unique_subject = parse_yesno(p, 1);
1914        }
1915    }
1916
1917 err:
1918    if (dbattr_conf)
1919        NCONF_free(dbattr_conf);
1920    if (tmpdb)
1921        TXT_DB_free(tmpdb);
1922    if (in)
1923        BIO_free_all(in);
1924    return retdb;
1925}
1926
1927int index_index(CA_DB *db)
1928{
1929    if (!TXT_DB_create_index(db->db, DB_serial, NULL,
1930                             LHASH_HASH_FN(index_serial),
1931                             LHASH_COMP_FN(index_serial))) {
1932        BIO_printf(bio_err,
1933                   "error creating serial number index:(%ld,%ld,%ld)\n",
1934                   db->db->error, db->db->arg1, db->db->arg2);
1935        return 0;
1936    }
1937
1938    if (db->attributes.unique_subject
1939        && !TXT_DB_create_index(db->db, DB_name, index_name_qual,
1940                                LHASH_HASH_FN(index_name),
1941                                LHASH_COMP_FN(index_name))) {
1942        BIO_printf(bio_err, "error creating name index:(%ld,%ld,%ld)\n",
1943                   db->db->error, db->db->arg1, db->db->arg2);
1944        return 0;
1945    }
1946    return 1;
1947}
1948
1949int save_index(const char *dbfile, const char *suffix, CA_DB *db)
1950{
1951    char buf[3][BSIZE];
1952    BIO *out = BIO_new(BIO_s_file());
1953    int j;
1954
1955    if (out == NULL) {
1956        ERR_print_errors(bio_err);
1957        goto err;
1958    }
1959
1960    j = strlen(dbfile) + strlen(suffix);
1961    if (j + 6 >= BSIZE) {
1962        BIO_printf(bio_err, "file name too long\n");
1963        goto err;
1964    }
1965#ifndef OPENSSL_SYS_VMS
1966    j = BIO_snprintf(buf[2], sizeof buf[2], "%s.attr", dbfile);
1967#else
1968    j = BIO_snprintf(buf[2], sizeof buf[2], "%s-attr", dbfile);
1969#endif
1970#ifndef OPENSSL_SYS_VMS
1971    j = BIO_snprintf(buf[1], sizeof buf[1], "%s.attr.%s", dbfile, suffix);
1972#else
1973    j = BIO_snprintf(buf[1], sizeof buf[1], "%s-attr-%s", dbfile, suffix);
1974#endif
1975#ifndef OPENSSL_SYS_VMS
1976    j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s", dbfile, suffix);
1977#else
1978    j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s", dbfile, suffix);
1979#endif
1980#ifdef RL_DEBUG
1981    BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[0]);
1982#endif
1983    if (BIO_write_filename(out, buf[0]) <= 0) {
1984        perror(dbfile);
1985        BIO_printf(bio_err, "unable to open '%s'\n", dbfile);
1986        goto err;
1987    }
1988    j = TXT_DB_write(out, db->db);
1989    if (j <= 0)
1990        goto err;
1991
1992    BIO_free(out);
1993
1994    out = BIO_new(BIO_s_file());
1995#ifdef RL_DEBUG
1996    BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[1]);
1997#endif
1998    if (BIO_write_filename(out, buf[1]) <= 0) {
1999        perror(buf[2]);
2000        BIO_printf(bio_err, "unable to open '%s'\n", buf[2]);
2001        goto err;
2002    }
2003    BIO_printf(out, "unique_subject = %s\n",
2004               db->attributes.unique_subject ? "yes" : "no");
2005    BIO_free(out);
2006
2007    return 1;
2008 err:
2009    return 0;
2010}
2011
2012int rotate_index(const char *dbfile, const char *new_suffix,
2013                 const char *old_suffix)
2014{
2015    char buf[5][BSIZE];
2016    int i, j;
2017
2018    i = strlen(dbfile) + strlen(old_suffix);
2019    j = strlen(dbfile) + strlen(new_suffix);
2020    if (i > j)
2021        j = i;
2022    if (j + 6 >= BSIZE) {
2023        BIO_printf(bio_err, "file name too long\n");
2024        goto err;
2025    }
2026#ifndef OPENSSL_SYS_VMS
2027    j = BIO_snprintf(buf[4], sizeof buf[4], "%s.attr", dbfile);
2028#else
2029    j = BIO_snprintf(buf[4], sizeof buf[4], "%s-attr", dbfile);
2030#endif
2031#ifndef OPENSSL_SYS_VMS
2032    j = BIO_snprintf(buf[2], sizeof buf[2], "%s.attr.%s", dbfile, new_suffix);
2033#else
2034    j = BIO_snprintf(buf[2], sizeof buf[2], "%s-attr-%s", dbfile, new_suffix);
2035#endif
2036#ifndef OPENSSL_SYS_VMS
2037    j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s", dbfile, new_suffix);
2038#else
2039    j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s", dbfile, new_suffix);
2040#endif
2041#ifndef OPENSSL_SYS_VMS
2042    j = BIO_snprintf(buf[1], sizeof buf[1], "%s.%s", dbfile, old_suffix);
2043#else
2044    j = BIO_snprintf(buf[1], sizeof buf[1], "%s-%s", dbfile, old_suffix);
2045#endif
2046#ifndef OPENSSL_SYS_VMS
2047    j = BIO_snprintf(buf[3], sizeof buf[3], "%s.attr.%s", dbfile, old_suffix);
2048#else
2049    j = BIO_snprintf(buf[3], sizeof buf[3], "%s-attr-%s", dbfile, old_suffix);
2050#endif
2051#ifdef RL_DEBUG
2052    BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n", dbfile, buf[1]);
2053#endif
2054    if (rename(dbfile, buf[1]) < 0 && errno != ENOENT
2055#ifdef ENOTDIR
2056        && errno != ENOTDIR
2057#endif
2058        ) {
2059        BIO_printf(bio_err, "unable to rename %s to %s\n", dbfile, buf[1]);
2060        perror("reason");
2061        goto err;
2062    }
2063#ifdef RL_DEBUG
2064    BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n", buf[0], dbfile);
2065#endif
2066    if (rename(buf[0], dbfile) < 0) {
2067        BIO_printf(bio_err, "unable to rename %s to %s\n", buf[0], dbfile);
2068        perror("reason");
2069        rename(buf[1], dbfile);
2070        goto err;
2071    }
2072#ifdef RL_DEBUG
2073    BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n", buf[4], buf[3]);
2074#endif
2075    if (rename(buf[4], buf[3]) < 0 && errno != ENOENT
2076#ifdef ENOTDIR
2077        && errno != ENOTDIR
2078#endif
2079        ) {
2080        BIO_printf(bio_err, "unable to rename %s to %s\n", buf[4], buf[3]);
2081        perror("reason");
2082        rename(dbfile, buf[0]);
2083        rename(buf[1], dbfile);
2084        goto err;
2085    }
2086#ifdef RL_DEBUG
2087    BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n", buf[2], buf[4]);
2088#endif
2089    if (rename(buf[2], buf[4]) < 0) {
2090        BIO_printf(bio_err, "unable to rename %s to %s\n", buf[2], buf[4]);
2091        perror("reason");
2092        rename(buf[3], buf[4]);
2093        rename(dbfile, buf[0]);
2094        rename(buf[1], dbfile);
2095        goto err;
2096    }
2097    return 1;
2098 err:
2099    return 0;
2100}
2101
2102void free_index(CA_DB *db)
2103{
2104    if (db) {
2105        if (db->db)
2106            TXT_DB_free(db->db);
2107        OPENSSL_free(db);
2108    }
2109}
2110
2111int parse_yesno(const char *str, int def)
2112{
2113    int ret = def;
2114    if (str) {
2115        switch (*str) {
2116        case 'f':              /* false */
2117        case 'F':              /* FALSE */
2118        case 'n':              /* no */
2119        case 'N':              /* NO */
2120        case '0':              /* 0 */
2121            ret = 0;
2122            break;
2123        case 't':              /* true */
2124        case 'T':              /* TRUE */
2125        case 'y':              /* yes */
2126        case 'Y':              /* YES */
2127        case '1':              /* 1 */
2128            ret = 1;
2129            break;
2130        default:
2131            ret = def;
2132            break;
2133        }
2134    }
2135    return ret;
2136}
2137
2138/*
2139 * subject is expected to be in the format /type0=value0/type1=value1/type2=...
2140 * where characters may be escaped by \
2141 */
2142X509_NAME *parse_name(char *subject, long chtype, int multirdn)
2143{
2144    size_t buflen = strlen(subject) + 1; /* to copy the types and values
2145                                          * into. due to escaping, the copy
2146                                          * can only become shorter */
2147    char *buf = OPENSSL_malloc(buflen);
2148    size_t max_ne = buflen / 2 + 1; /* maximum number of name elements */
2149    char **ne_types = OPENSSL_malloc(max_ne * sizeof(char *));
2150    char **ne_values = OPENSSL_malloc(max_ne * sizeof(char *));
2151    int *mval = OPENSSL_malloc(max_ne * sizeof(int));
2152
2153    char *sp = subject, *bp = buf;
2154    int i, ne_num = 0;
2155
2156    X509_NAME *n = NULL;
2157    int nid;
2158
2159    if (!buf || !ne_types || !ne_values || !mval) {
2160        BIO_printf(bio_err, "malloc error\n");
2161        goto error;
2162    }
2163
2164    if (*subject != '/') {
2165        BIO_printf(bio_err, "Subject does not start with '/'.\n");
2166        goto error;
2167    }
2168    sp++;                       /* skip leading / */
2169
2170    /* no multivalued RDN by default */
2171    mval[ne_num] = 0;
2172
2173    while (*sp) {
2174        /* collect type */
2175        ne_types[ne_num] = bp;
2176        while (*sp) {
2177            if (*sp == '\\') {  /* is there anything to escape in the
2178                                 * type...? */
2179                if (*++sp)
2180                    *bp++ = *sp++;
2181                else {
2182                    BIO_printf(bio_err,
2183                               "escape character at end of string\n");
2184                    goto error;
2185                }
2186            } else if (*sp == '=') {
2187                sp++;
2188                *bp++ = '\0';
2189                break;
2190            } else
2191                *bp++ = *sp++;
2192        }
2193        if (!*sp) {
2194            BIO_printf(bio_err,
2195                       "end of string encountered while processing type of subject name element #%d\n",
2196                       ne_num);
2197            goto error;
2198        }
2199        ne_values[ne_num] = bp;
2200        while (*sp) {
2201            if (*sp == '\\') {
2202                if (*++sp)
2203                    *bp++ = *sp++;
2204                else {
2205                    BIO_printf(bio_err,
2206                               "escape character at end of string\n");
2207                    goto error;
2208                }
2209            } else if (*sp == '/') {
2210                sp++;
2211                /* no multivalued RDN by default */
2212                mval[ne_num + 1] = 0;
2213                break;
2214            } else if (*sp == '+' && multirdn) {
2215                /*
2216                 * a not escaped + signals a mutlivalued RDN
2217                 */
2218                sp++;
2219                mval[ne_num + 1] = -1;
2220                break;
2221            } else
2222                *bp++ = *sp++;
2223        }
2224        *bp++ = '\0';
2225        ne_num++;
2226    }
2227
2228    if (!(n = X509_NAME_new()))
2229        goto error;
2230
2231    for (i = 0; i < ne_num; i++) {
2232        if ((nid = OBJ_txt2nid(ne_types[i])) == NID_undef) {
2233            BIO_printf(bio_err,
2234                       "Subject Attribute %s has no known NID, skipped\n",
2235                       ne_types[i]);
2236            continue;
2237        }
2238
2239        if (!*ne_values[i]) {
2240            BIO_printf(bio_err,
2241                       "No value provided for Subject Attribute %s, skipped\n",
2242                       ne_types[i]);
2243            continue;
2244        }
2245
2246        if (!X509_NAME_add_entry_by_NID
2247            (n, nid, chtype, (unsigned char *)ne_values[i], -1, -1, mval[i]))
2248            goto error;
2249    }
2250
2251    OPENSSL_free(ne_values);
2252    OPENSSL_free(ne_types);
2253    OPENSSL_free(buf);
2254    OPENSSL_free(mval);
2255    return n;
2256
2257 error:
2258    X509_NAME_free(n);
2259    if (ne_values)
2260        OPENSSL_free(ne_values);
2261    if (ne_types)
2262        OPENSSL_free(ne_types);
2263    if (mval)
2264        OPENSSL_free(mval);
2265    if (buf)
2266        OPENSSL_free(buf);
2267    return NULL;
2268}
2269
2270int args_verify(char ***pargs, int *pargc,
2271                int *badarg, BIO *err, X509_VERIFY_PARAM **pm)
2272{
2273    ASN1_OBJECT *otmp = NULL;
2274    unsigned long flags = 0;
2275    int i;
2276    int purpose = 0, depth = -1;
2277    char **oldargs = *pargs;
2278    char *arg = **pargs, *argn = (*pargs)[1];
2279    time_t at_time = 0;
2280    char *hostname = NULL;
2281    char *email = NULL;
2282    char *ipasc = NULL;
2283    if (!strcmp(arg, "-policy")) {
2284        if (!argn)
2285            *badarg = 1;
2286        else {
2287            otmp = OBJ_txt2obj(argn, 0);
2288            if (!otmp) {
2289                BIO_printf(err, "Invalid Policy \"%s\"\n", argn);
2290                *badarg = 1;
2291            }
2292        }
2293        (*pargs)++;
2294    } else if (strcmp(arg, "-purpose") == 0) {
2295        X509_PURPOSE *xptmp;
2296        if (!argn)
2297            *badarg = 1;
2298        else {
2299            i = X509_PURPOSE_get_by_sname(argn);
2300            if (i < 0) {
2301                BIO_printf(err, "unrecognized purpose\n");
2302                *badarg = 1;
2303            } else {
2304                xptmp = X509_PURPOSE_get0(i);
2305                purpose = X509_PURPOSE_get_id(xptmp);
2306            }
2307        }
2308        (*pargs)++;
2309    } else if (strcmp(arg, "-verify_depth") == 0) {
2310        if (!argn)
2311            *badarg = 1;
2312        else {
2313            depth = atoi(argn);
2314            if (depth < 0) {
2315                BIO_printf(err, "invalid depth\n");
2316                *badarg = 1;
2317            }
2318        }
2319        (*pargs)++;
2320    } else if (strcmp(arg, "-attime") == 0) {
2321        if (!argn)
2322            *badarg = 1;
2323        else {
2324            long timestamp;
2325            /*
2326             * interpret the -attime argument as seconds since Epoch
2327             */
2328            if (sscanf(argn, "%li", &timestamp) != 1) {
2329                BIO_printf(bio_err, "Error parsing timestamp %s\n", argn);
2330                *badarg = 1;
2331            }
2332            /* on some platforms time_t may be a float */
2333            at_time = (time_t)timestamp;
2334        }
2335        (*pargs)++;
2336    } else if (strcmp(arg, "-verify_hostname") == 0) {
2337        if (!argn)
2338            *badarg = 1;
2339        hostname = argn;
2340        (*pargs)++;
2341    } else if (strcmp(arg, "-verify_email") == 0) {
2342        if (!argn)
2343            *badarg = 1;
2344        email = argn;
2345        (*pargs)++;
2346    } else if (strcmp(arg, "-verify_ip") == 0) {
2347        if (!argn)
2348            *badarg = 1;
2349        ipasc = argn;
2350        (*pargs)++;
2351    } else if (!strcmp(arg, "-ignore_critical"))
2352        flags |= X509_V_FLAG_IGNORE_CRITICAL;
2353    else if (!strcmp(arg, "-issuer_checks"))
2354        flags |= X509_V_FLAG_CB_ISSUER_CHECK;
2355    else if (!strcmp(arg, "-crl_check"))
2356        flags |= X509_V_FLAG_CRL_CHECK;
2357    else if (!strcmp(arg, "-crl_check_all"))
2358        flags |= X509_V_FLAG_CRL_CHECK | X509_V_FLAG_CRL_CHECK_ALL;
2359    else if (!strcmp(arg, "-policy_check"))
2360        flags |= X509_V_FLAG_POLICY_CHECK;
2361    else if (!strcmp(arg, "-explicit_policy"))
2362        flags |= X509_V_FLAG_EXPLICIT_POLICY;
2363    else if (!strcmp(arg, "-inhibit_any"))
2364        flags |= X509_V_FLAG_INHIBIT_ANY;
2365    else if (!strcmp(arg, "-inhibit_map"))
2366        flags |= X509_V_FLAG_INHIBIT_MAP;
2367    else if (!strcmp(arg, "-x509_strict"))
2368        flags |= X509_V_FLAG_X509_STRICT;
2369    else if (!strcmp(arg, "-extended_crl"))
2370        flags |= X509_V_FLAG_EXTENDED_CRL_SUPPORT;
2371    else if (!strcmp(arg, "-use_deltas"))
2372        flags |= X509_V_FLAG_USE_DELTAS;
2373    else if (!strcmp(arg, "-policy_print"))
2374        flags |= X509_V_FLAG_NOTIFY_POLICY;
2375    else if (!strcmp(arg, "-check_ss_sig"))
2376        flags |= X509_V_FLAG_CHECK_SS_SIGNATURE;
2377    else if (!strcmp(arg, "-trusted_first"))
2378        flags |= X509_V_FLAG_TRUSTED_FIRST;
2379    else if (!strcmp(arg, "-suiteB_128_only"))
2380        flags |= X509_V_FLAG_SUITEB_128_LOS_ONLY;
2381    else if (!strcmp(arg, "-suiteB_128"))
2382        flags |= X509_V_FLAG_SUITEB_128_LOS;
2383    else if (!strcmp(arg, "-suiteB_192"))
2384        flags |= X509_V_FLAG_SUITEB_192_LOS;
2385    else if (!strcmp(arg, "-partial_chain"))
2386        flags |= X509_V_FLAG_PARTIAL_CHAIN;
2387    else if (!strcmp(arg, "-no_alt_chains"))
2388        flags |= X509_V_FLAG_NO_ALT_CHAINS;
2389    else if (!strcmp(arg, "-allow_proxy_certs"))
2390        flags |= X509_V_FLAG_ALLOW_PROXY_CERTS;
2391    else
2392        return 0;
2393
2394    if (*badarg) {
2395        if (*pm)
2396            X509_VERIFY_PARAM_free(*pm);
2397        *pm = NULL;
2398        goto end;
2399    }
2400
2401    if (!*pm && !(*pm = X509_VERIFY_PARAM_new())) {
2402        *badarg = 1;
2403        goto end;
2404    }
2405
2406    if (otmp)
2407        X509_VERIFY_PARAM_add0_policy(*pm, otmp);
2408    if (flags)
2409        X509_VERIFY_PARAM_set_flags(*pm, flags);
2410
2411    if (purpose)
2412        X509_VERIFY_PARAM_set_purpose(*pm, purpose);
2413
2414    if (depth >= 0)
2415        X509_VERIFY_PARAM_set_depth(*pm, depth);
2416
2417    if (at_time)
2418        X509_VERIFY_PARAM_set_time(*pm, at_time);
2419
2420    if (hostname && !X509_VERIFY_PARAM_set1_host(*pm, hostname, 0))
2421        *badarg = 1;
2422
2423    if (email && !X509_VERIFY_PARAM_set1_email(*pm, email, 0))
2424        *badarg = 1;
2425
2426    if (ipasc && !X509_VERIFY_PARAM_set1_ip_asc(*pm, ipasc))
2427        *badarg = 1;
2428
2429 end:
2430
2431    (*pargs)++;
2432
2433    if (pargc)
2434        *pargc -= *pargs - oldargs;
2435
2436    return 1;
2437
2438}
2439
2440/*
2441 * Read whole contents of a BIO into an allocated memory buffer and return
2442 * it.
2443 */
2444
2445int bio_to_mem(unsigned char **out, int maxlen, BIO *in)
2446{
2447    BIO *mem;
2448    int len, ret;
2449    unsigned char tbuf[1024];
2450    mem = BIO_new(BIO_s_mem());
2451    if (!mem)
2452        return -1;
2453    for (;;) {
2454        if ((maxlen != -1) && maxlen < 1024)
2455            len = maxlen;
2456        else
2457            len = 1024;
2458        len = BIO_read(in, tbuf, len);
2459        if (len < 0) {
2460            BIO_free(mem);
2461            return -1;
2462        }
2463        if (len == 0)
2464            break;
2465        if (BIO_write(mem, tbuf, len) != len) {
2466            BIO_free(mem);
2467            return -1;
2468        }
2469        maxlen -= len;
2470
2471        if (maxlen == 0)
2472            break;
2473    }
2474    ret = BIO_get_mem_data(mem, (char **)out);
2475    BIO_set_flags(mem, BIO_FLAGS_MEM_RDONLY);
2476    BIO_free(mem);
2477    return ret;
2478}
2479
2480int pkey_ctrl_string(EVP_PKEY_CTX *ctx, const char *value)
2481{
2482    int rv;
2483    char *stmp, *vtmp = NULL;
2484    stmp = BUF_strdup(value);
2485    if (!stmp)
2486        return -1;
2487    vtmp = strchr(stmp, ':');
2488    if (vtmp) {
2489        *vtmp = 0;
2490        vtmp++;
2491    }
2492    rv = EVP_PKEY_CTX_ctrl_str(ctx, stmp, vtmp);
2493    OPENSSL_free(stmp);
2494    return rv;
2495}
2496
2497static void nodes_print(BIO *out, const char *name,
2498                        STACK_OF(X509_POLICY_NODE) *nodes)
2499{
2500    X509_POLICY_NODE *node;
2501    int i;
2502    BIO_printf(out, "%s Policies:", name);
2503    if (nodes) {
2504        BIO_puts(out, "\n");
2505        for (i = 0; i < sk_X509_POLICY_NODE_num(nodes); i++) {
2506            node = sk_X509_POLICY_NODE_value(nodes, i);
2507            X509_POLICY_NODE_print(out, node, 2);
2508        }
2509    } else
2510        BIO_puts(out, " <empty>\n");
2511}
2512
2513void policies_print(BIO *out, X509_STORE_CTX *ctx)
2514{
2515    X509_POLICY_TREE *tree;
2516    int explicit_policy;
2517    int free_out = 0;
2518    if (out == NULL) {
2519        out = BIO_new_fp(stderr, BIO_NOCLOSE);
2520        free_out = 1;
2521    }
2522    tree = X509_STORE_CTX_get0_policy_tree(ctx);
2523    explicit_policy = X509_STORE_CTX_get_explicit_policy(ctx);
2524
2525    BIO_printf(out, "Require explicit Policy: %s\n",
2526               explicit_policy ? "True" : "False");
2527
2528    nodes_print(out, "Authority", X509_policy_tree_get0_policies(tree));
2529    nodes_print(out, "User", X509_policy_tree_get0_user_policies(tree));
2530    if (free_out)
2531        BIO_free(out);
2532}
2533
2534#if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
2535
2536static JPAKE_CTX *jpake_init(const char *us, const char *them,
2537                             const char *secret)
2538{
2539    BIGNUM *p = NULL;
2540    BIGNUM *g = NULL;
2541    BIGNUM *q = NULL;
2542    BIGNUM *bnsecret = BN_new();
2543    JPAKE_CTX *ctx;
2544
2545    /* Use a safe prime for p (that we found earlier) */
2546    BN_hex2bn(&p,
2547              "F9E5B365665EA7A05A9C534502780FEE6F1AB5BD4F49947FD036DBD7E905269AF46EF28B0FC07487EE4F5D20FB3C0AF8E700F3A2FA3414970CBED44FEDFF80CE78D800F184BB82435D137AADA2C6C16523247930A63B85661D1FC817A51ACD96168E95898A1F83A79FFB529368AA7833ABD1B0C3AEDDB14D2E1A2F71D99F763F");
2548    g = BN_new();
2549    BN_set_word(g, 2);
2550    q = BN_new();
2551    BN_rshift1(q, p);
2552
2553    BN_bin2bn((const unsigned char *)secret, strlen(secret), bnsecret);
2554
2555    ctx = JPAKE_CTX_new(us, them, p, g, q, bnsecret);
2556    BN_free(bnsecret);
2557    BN_free(q);
2558    BN_free(g);
2559    BN_free(p);
2560
2561    return ctx;
2562}
2563
2564static void jpake_send_part(BIO *conn, const JPAKE_STEP_PART *p)
2565{
2566    BN_print(conn, p->gx);
2567    BIO_puts(conn, "\n");
2568    BN_print(conn, p->zkpx.gr);
2569    BIO_puts(conn, "\n");
2570    BN_print(conn, p->zkpx.b);
2571    BIO_puts(conn, "\n");
2572}
2573
2574static void jpake_send_step1(BIO *bconn, JPAKE_CTX *ctx)
2575{
2576    JPAKE_STEP1 s1;
2577
2578    JPAKE_STEP1_init(&s1);
2579    JPAKE_STEP1_generate(&s1, ctx);
2580    jpake_send_part(bconn, &s1.p1);
2581    jpake_send_part(bconn, &s1.p2);
2582    (void)BIO_flush(bconn);
2583    JPAKE_STEP1_release(&s1);
2584}
2585
2586static void jpake_send_step2(BIO *bconn, JPAKE_CTX *ctx)
2587{
2588    JPAKE_STEP2 s2;
2589
2590    JPAKE_STEP2_init(&s2);
2591    JPAKE_STEP2_generate(&s2, ctx);
2592    jpake_send_part(bconn, &s2);
2593    (void)BIO_flush(bconn);
2594    JPAKE_STEP2_release(&s2);
2595}
2596
2597static void jpake_send_step3a(BIO *bconn, JPAKE_CTX *ctx)
2598{
2599    JPAKE_STEP3A s3a;
2600
2601    JPAKE_STEP3A_init(&s3a);
2602    JPAKE_STEP3A_generate(&s3a, ctx);
2603    BIO_write(bconn, s3a.hhk, sizeof s3a.hhk);
2604    (void)BIO_flush(bconn);
2605    JPAKE_STEP3A_release(&s3a);
2606}
2607
2608static void jpake_send_step3b(BIO *bconn, JPAKE_CTX *ctx)
2609{
2610    JPAKE_STEP3B s3b;
2611
2612    JPAKE_STEP3B_init(&s3b);
2613    JPAKE_STEP3B_generate(&s3b, ctx);
2614    BIO_write(bconn, s3b.hk, sizeof s3b.hk);
2615    (void)BIO_flush(bconn);
2616    JPAKE_STEP3B_release(&s3b);
2617}
2618
2619static void readbn(BIGNUM **bn, BIO *bconn)
2620{
2621    char buf[10240];
2622    int l;
2623
2624    l = BIO_gets(bconn, buf, sizeof buf);
2625    assert(l > 0);
2626    assert(buf[l - 1] == '\n');
2627    buf[l - 1] = '\0';
2628    BN_hex2bn(bn, buf);
2629}
2630
2631static void jpake_receive_part(JPAKE_STEP_PART *p, BIO *bconn)
2632{
2633    readbn(&p->gx, bconn);
2634    readbn(&p->zkpx.gr, bconn);
2635    readbn(&p->zkpx.b, bconn);
2636}
2637
2638static void jpake_receive_step1(JPAKE_CTX *ctx, BIO *bconn)
2639{
2640    JPAKE_STEP1 s1;
2641
2642    JPAKE_STEP1_init(&s1);
2643    jpake_receive_part(&s1.p1, bconn);
2644    jpake_receive_part(&s1.p2, bconn);
2645    if (!JPAKE_STEP1_process(ctx, &s1)) {
2646        ERR_print_errors(bio_err);
2647        exit(1);
2648    }
2649    JPAKE_STEP1_release(&s1);
2650}
2651
2652static void jpake_receive_step2(JPAKE_CTX *ctx, BIO *bconn)
2653{
2654    JPAKE_STEP2 s2;
2655
2656    JPAKE_STEP2_init(&s2);
2657    jpake_receive_part(&s2, bconn);
2658    if (!JPAKE_STEP2_process(ctx, &s2)) {
2659        ERR_print_errors(bio_err);
2660        exit(1);
2661    }
2662    JPAKE_STEP2_release(&s2);
2663}
2664
2665static void jpake_receive_step3a(JPAKE_CTX *ctx, BIO *bconn)
2666{
2667    JPAKE_STEP3A s3a;
2668    int l;
2669
2670    JPAKE_STEP3A_init(&s3a);
2671    l = BIO_read(bconn, s3a.hhk, sizeof s3a.hhk);
2672    assert(l == sizeof s3a.hhk);
2673    if (!JPAKE_STEP3A_process(ctx, &s3a)) {
2674        ERR_print_errors(bio_err);
2675        exit(1);
2676    }
2677    JPAKE_STEP3A_release(&s3a);
2678}
2679
2680static void jpake_receive_step3b(JPAKE_CTX *ctx, BIO *bconn)
2681{
2682    JPAKE_STEP3B s3b;
2683    int l;
2684
2685    JPAKE_STEP3B_init(&s3b);
2686    l = BIO_read(bconn, s3b.hk, sizeof s3b.hk);
2687    assert(l == sizeof s3b.hk);
2688    if (!JPAKE_STEP3B_process(ctx, &s3b)) {
2689        ERR_print_errors(bio_err);
2690        exit(1);
2691    }
2692    JPAKE_STEP3B_release(&s3b);
2693}
2694
2695void jpake_client_auth(BIO *out, BIO *conn, const char *secret)
2696{
2697    JPAKE_CTX *ctx;
2698    BIO *bconn;
2699
2700    BIO_puts(out, "Authenticating with JPAKE\n");
2701
2702    ctx = jpake_init("client", "server", secret);
2703
2704    bconn = BIO_new(BIO_f_buffer());
2705    BIO_push(bconn, conn);
2706
2707    jpake_send_step1(bconn, ctx);
2708    jpake_receive_step1(ctx, bconn);
2709    jpake_send_step2(bconn, ctx);
2710    jpake_receive_step2(ctx, bconn);
2711    jpake_send_step3a(bconn, ctx);
2712    jpake_receive_step3b(ctx, bconn);
2713
2714    BIO_puts(out, "JPAKE authentication succeeded, setting PSK\n");
2715
2716    if (psk_key)
2717        OPENSSL_free(psk_key);
2718
2719    psk_key = BN_bn2hex(JPAKE_get_shared_key(ctx));
2720
2721    BIO_pop(bconn);
2722    BIO_free(bconn);
2723
2724    JPAKE_CTX_free(ctx);
2725}
2726
2727void jpake_server_auth(BIO *out, BIO *conn, const char *secret)
2728{
2729    JPAKE_CTX *ctx;
2730    BIO *bconn;
2731
2732    BIO_puts(out, "Authenticating with JPAKE\n");
2733
2734    ctx = jpake_init("server", "client", secret);
2735
2736    bconn = BIO_new(BIO_f_buffer());
2737    BIO_push(bconn, conn);
2738
2739    jpake_receive_step1(ctx, bconn);
2740    jpake_send_step1(bconn, ctx);
2741    jpake_receive_step2(ctx, bconn);
2742    jpake_send_step2(bconn, ctx);
2743    jpake_receive_step3a(ctx, bconn);
2744    jpake_send_step3b(bconn, ctx);
2745
2746    BIO_puts(out, "JPAKE authentication succeeded, setting PSK\n");
2747
2748    if (psk_key)
2749        OPENSSL_free(psk_key);
2750
2751    psk_key = BN_bn2hex(JPAKE_get_shared_key(ctx));
2752
2753    BIO_pop(bconn);
2754    BIO_free(bconn);
2755
2756    JPAKE_CTX_free(ctx);
2757}
2758
2759#endif
2760
2761#ifndef OPENSSL_NO_TLSEXT
2762/*-
2763 * next_protos_parse parses a comma separated list of strings into a string
2764 * in a format suitable for passing to SSL_CTX_set_next_protos_advertised.
2765 *   outlen: (output) set to the length of the resulting buffer on success.
2766 *   err: (maybe NULL) on failure, an error message line is written to this BIO.
2767 *   in: a NUL termianted string like "abc,def,ghi"
2768 *
2769 *   returns: a malloced buffer or NULL on failure.
2770 */
2771unsigned char *next_protos_parse(unsigned short *outlen, const char *in)
2772{
2773    size_t len;
2774    unsigned char *out;
2775    size_t i, start = 0;
2776
2777    len = strlen(in);
2778    if (len >= 65535)
2779        return NULL;
2780
2781    out = OPENSSL_malloc(strlen(in) + 1);
2782    if (!out)
2783        return NULL;
2784
2785    for (i = 0; i <= len; ++i) {
2786        if (i == len || in[i] == ',') {
2787            if (i - start > 255) {
2788                OPENSSL_free(out);
2789                return NULL;
2790            }
2791            out[start] = i - start;
2792            start = i + 1;
2793        } else
2794            out[i + 1] = in[i];
2795    }
2796
2797    *outlen = len + 1;
2798    return out;
2799}
2800#endif                          /* ndef OPENSSL_NO_TLSEXT */
2801
2802void print_cert_checks(BIO *bio, X509 *x,
2803                       const char *checkhost,
2804                       const char *checkemail, const char *checkip)
2805{
2806    if (x == NULL)
2807        return;
2808    if (checkhost) {
2809        BIO_printf(bio, "Hostname %s does%s match certificate\n",
2810                   checkhost, X509_check_host(x, checkhost, 0, 0, NULL) == 1
2811                   ? "" : " NOT");
2812    }
2813
2814    if (checkemail) {
2815        BIO_printf(bio, "Email %s does%s match certificate\n",
2816                   checkemail, X509_check_email(x, checkemail, 0,
2817                                                0) ? "" : " NOT");
2818    }
2819
2820    if (checkip) {
2821        BIO_printf(bio, "IP %s does%s match certificate\n",
2822                   checkip, X509_check_ip_asc(x, checkip, 0) ? "" : " NOT");
2823    }
2824}
2825
2826/* Get first http URL from a DIST_POINT structure */
2827
2828static const char *get_dp_url(DIST_POINT *dp)
2829{
2830    GENERAL_NAMES *gens;
2831    GENERAL_NAME *gen;
2832    int i, gtype;
2833    ASN1_STRING *uri;
2834    if (!dp->distpoint || dp->distpoint->type != 0)
2835        return NULL;
2836    gens = dp->distpoint->name.fullname;
2837    for (i = 0; i < sk_GENERAL_NAME_num(gens); i++) {
2838        gen = sk_GENERAL_NAME_value(gens, i);
2839        uri = GENERAL_NAME_get0_value(gen, &gtype);
2840        if (gtype == GEN_URI && ASN1_STRING_length(uri) > 6) {
2841            char *uptr = (char *)ASN1_STRING_data(uri);
2842            if (!strncmp(uptr, "http://", 7))
2843                return uptr;
2844        }
2845    }
2846    return NULL;
2847}
2848
2849/*
2850 * Look through a CRLDP structure and attempt to find an http URL to
2851 * downloads a CRL from.
2852 */
2853
2854static X509_CRL *load_crl_crldp(STACK_OF(DIST_POINT) *crldp)
2855{
2856    int i;
2857    const char *urlptr = NULL;
2858    for (i = 0; i < sk_DIST_POINT_num(crldp); i++) {
2859        DIST_POINT *dp = sk_DIST_POINT_value(crldp, i);
2860        urlptr = get_dp_url(dp);
2861        if (urlptr)
2862            return load_crl(urlptr, FORMAT_HTTP);
2863    }
2864    return NULL;
2865}
2866
2867/*
2868 * Example of downloading CRLs from CRLDP: not usable for real world as it
2869 * always downloads, doesn't support non-blocking I/O and doesn't cache
2870 * anything.
2871 */
2872
2873static STACK_OF(X509_CRL) *crls_http_cb(X509_STORE_CTX *ctx, X509_NAME *nm)
2874{
2875    X509 *x;
2876    STACK_OF(X509_CRL) *crls = NULL;
2877    X509_CRL *crl;
2878    STACK_OF(DIST_POINT) *crldp;
2879    x = X509_STORE_CTX_get_current_cert(ctx);
2880    crldp = X509_get_ext_d2i(x, NID_crl_distribution_points, NULL, NULL);
2881    crl = load_crl_crldp(crldp);
2882    sk_DIST_POINT_pop_free(crldp, DIST_POINT_free);
2883    if (!crl)
2884        return NULL;
2885    crls = sk_X509_CRL_new_null();
2886    sk_X509_CRL_push(crls, crl);
2887    /* Try to download delta CRL */
2888    crldp = X509_get_ext_d2i(x, NID_freshest_crl, NULL, NULL);
2889    crl = load_crl_crldp(crldp);
2890    sk_DIST_POINT_pop_free(crldp, DIST_POINT_free);
2891    if (crl)
2892        sk_X509_CRL_push(crls, crl);
2893    return crls;
2894}
2895
2896void store_setup_crl_download(X509_STORE *st)
2897{
2898    X509_STORE_set_lookup_crls_cb(st, crls_http_cb);
2899}
2900
2901/*
2902 * Platform-specific sections
2903 */
2904#if defined(_WIN32)
2905# ifdef fileno
2906#  undef fileno
2907#  define fileno(a) (int)_fileno(a)
2908# endif
2909
2910# include <windows.h>
2911# include <tchar.h>
2912
2913static int WIN32_rename(const char *from, const char *to)
2914{
2915    TCHAR *tfrom = NULL, *tto;
2916    DWORD err;
2917    int ret = 0;
2918
2919    if (sizeof(TCHAR) == 1) {
2920        tfrom = (TCHAR *)from;
2921        tto = (TCHAR *)to;
2922    } else {                    /* UNICODE path */
2923
2924        size_t i, flen = strlen(from) + 1, tlen = strlen(to) + 1;
2925        tfrom = (TCHAR *)malloc(sizeof(TCHAR) * (flen + tlen));
2926        if (tfrom == NULL)
2927            goto err;
2928        tto = tfrom + flen;
2929# if !defined(_WIN32_WCE) || _WIN32_WCE>=101
2930        if (!MultiByteToWideChar(CP_ACP, 0, from, flen, (WCHAR *)tfrom, flen))
2931# endif
2932            for (i = 0; i < flen; i++)
2933                tfrom[i] = (TCHAR)from[i];
2934# if !defined(_WIN32_WCE) || _WIN32_WCE>=101
2935        if (!MultiByteToWideChar(CP_ACP, 0, to, tlen, (WCHAR *)tto, tlen))
2936# endif
2937            for (i = 0; i < tlen; i++)
2938                tto[i] = (TCHAR)to[i];
2939    }
2940
2941    if (MoveFile(tfrom, tto))
2942        goto ok;
2943    err = GetLastError();
2944    if (err == ERROR_ALREADY_EXISTS || err == ERROR_FILE_EXISTS) {
2945        if (DeleteFile(tto) && MoveFile(tfrom, tto))
2946            goto ok;
2947        err = GetLastError();
2948    }
2949    if (err == ERROR_FILE_NOT_FOUND || err == ERROR_PATH_NOT_FOUND)
2950        errno = ENOENT;
2951    else if (err == ERROR_ACCESS_DENIED)
2952        errno = EACCES;
2953    else
2954        errno = EINVAL;         /* we could map more codes... */
2955 err:
2956    ret = -1;
2957 ok:
2958    if (tfrom != NULL && tfrom != (TCHAR *)from)
2959        free(tfrom);
2960    return ret;
2961}
2962#endif
2963
2964/* app_tminterval section */
2965#if defined(_WIN32)
2966double app_tminterval(int stop, int usertime)
2967{
2968    FILETIME now;
2969    double ret = 0;
2970    static ULARGE_INTEGER tmstart;
2971    static int warning = 1;
2972# ifdef _WIN32_WINNT
2973    static HANDLE proc = NULL;
2974
2975    if (proc == NULL) {
2976        if (check_winnt())
2977            proc = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE,
2978                               GetCurrentProcessId());
2979        if (proc == NULL)
2980            proc = (HANDLE) - 1;
2981    }
2982
2983    if (usertime && proc != (HANDLE) - 1) {
2984        FILETIME junk;
2985        GetProcessTimes(proc, &junk, &junk, &junk, &now);
2986    } else
2987# endif
2988    {
2989        SYSTEMTIME systime;
2990
2991        if (usertime && warning) {
2992            BIO_printf(bio_err, "To get meaningful results, run "
2993                       "this program on idle system.\n");
2994            warning = 0;
2995        }
2996        GetSystemTime(&systime);
2997        SystemTimeToFileTime(&systime, &now);
2998    }
2999
3000    if (stop == TM_START) {
3001        tmstart.u.LowPart = now.dwLowDateTime;
3002        tmstart.u.HighPart = now.dwHighDateTime;
3003    } else {
3004        ULARGE_INTEGER tmstop;
3005
3006        tmstop.u.LowPart = now.dwLowDateTime;
3007        tmstop.u.HighPart = now.dwHighDateTime;
3008
3009        ret = (__int64)(tmstop.QuadPart - tmstart.QuadPart) * 1e-7;
3010    }
3011
3012    return (ret);
3013}
3014
3015#elif defined(OPENSSL_SYS_NETWARE)
3016# include <time.h>
3017
3018double app_tminterval(int stop, int usertime)
3019{
3020    double ret = 0;
3021    static clock_t tmstart;
3022    static int warning = 1;
3023
3024    if (usertime && warning) {
3025        BIO_printf(bio_err, "To get meaningful results, run "
3026                   "this program on idle system.\n");
3027        warning = 0;
3028    }
3029
3030    if (stop == TM_START)
3031        tmstart = clock();
3032    else
3033        ret = (clock() - tmstart) / (double)CLOCKS_PER_SEC;
3034
3035    return (ret);
3036}
3037
3038#elif defined(OPENSSL_SYSTEM_VXWORKS)
3039# include <time.h>
3040
3041double app_tminterval(int stop, int usertime)
3042{
3043    double ret = 0;
3044# ifdef CLOCK_REALTIME
3045    static struct timespec tmstart;
3046    struct timespec now;
3047# else
3048    static unsigned long tmstart;
3049    unsigned long now;
3050# endif
3051    static int warning = 1;
3052
3053    if (usertime && warning) {
3054        BIO_printf(bio_err, "To get meaningful results, run "
3055                   "this program on idle system.\n");
3056        warning = 0;
3057    }
3058# ifdef CLOCK_REALTIME
3059    clock_gettime(CLOCK_REALTIME, &now);
3060    if (stop == TM_START)
3061        tmstart = now;
3062    else
3063        ret = ((now.tv_sec + now.tv_nsec * 1e-9)
3064               - (tmstart.tv_sec + tmstart.tv_nsec * 1e-9));
3065# else
3066    now = tickGet();
3067    if (stop == TM_START)
3068        tmstart = now;
3069    else
3070        ret = (now - tmstart) / (double)sysClkRateGet();
3071# endif
3072    return (ret);
3073}
3074
3075#elif defined(OPENSSL_SYSTEM_VMS)
3076# include <time.h>
3077# include <times.h>
3078
3079double app_tminterval(int stop, int usertime)
3080{
3081    static clock_t tmstart;
3082    double ret = 0;
3083    clock_t now;
3084# ifdef __TMS
3085    struct tms rus;
3086
3087    now = times(&rus);
3088    if (usertime)
3089        now = rus.tms_utime;
3090# else
3091    if (usertime)
3092        now = clock();          /* sum of user and kernel times */
3093    else {
3094        struct timeval tv;
3095        gettimeofday(&tv, NULL);
3096        now = (clock_t)((unsigned long long)tv.tv_sec * CLK_TCK +
3097                        (unsigned long long)tv.tv_usec * (1000000 / CLK_TCK)
3098            );
3099    }
3100# endif
3101    if (stop == TM_START)
3102        tmstart = now;
3103    else
3104        ret = (now - tmstart) / (double)(CLK_TCK);
3105
3106    return (ret);
3107}
3108
3109#elif defined(_SC_CLK_TCK)      /* by means of unistd.h */
3110# include <sys/times.h>
3111
3112double app_tminterval(int stop, int usertime)
3113{
3114    double ret = 0;
3115    struct tms rus;
3116    clock_t now = times(&rus);
3117    static clock_t tmstart;
3118
3119    if (usertime)
3120        now = rus.tms_utime;
3121
3122    if (stop == TM_START)
3123        tmstart = now;
3124    else {
3125        long int tck = sysconf(_SC_CLK_TCK);
3126        ret = (now - tmstart) / (double)tck;
3127    }
3128
3129    return (ret);
3130}
3131
3132#else
3133# include <sys/time.h>
3134# include <sys/resource.h>
3135
3136double app_tminterval(int stop, int usertime)
3137{
3138    double ret = 0;
3139    struct rusage rus;
3140    struct timeval now;
3141    static struct timeval tmstart;
3142
3143    if (usertime)
3144        getrusage(RUSAGE_SELF, &rus), now = rus.ru_utime;
3145    else
3146        gettimeofday(&now, NULL);
3147
3148    if (stop == TM_START)
3149        tmstart = now;
3150    else
3151        ret = ((now.tv_sec + now.tv_usec * 1e-6)
3152               - (tmstart.tv_sec + tmstart.tv_usec * 1e-6));
3153
3154    return ret;
3155}
3156#endif
3157
3158/* app_isdir section */
3159#ifdef _WIN32
3160int app_isdir(const char *name)
3161{
3162    HANDLE hList;
3163    WIN32_FIND_DATA FileData;
3164# if defined(UNICODE) || defined(_UNICODE)
3165    size_t i, len_0 = strlen(name) + 1;
3166
3167    if (len_0 > sizeof(FileData.cFileName) / sizeof(FileData.cFileName[0]))
3168        return -1;
3169
3170#  if !defined(_WIN32_WCE) || _WIN32_WCE>=101
3171    if (!MultiByteToWideChar
3172        (CP_ACP, 0, name, len_0, FileData.cFileName, len_0))
3173#  endif
3174        for (i = 0; i < len_0; i++)
3175            FileData.cFileName[i] = (WCHAR)name[i];
3176
3177    hList = FindFirstFile(FileData.cFileName, &FileData);
3178# else
3179    hList = FindFirstFile(name, &FileData);
3180# endif
3181    if (hList == INVALID_HANDLE_VALUE)
3182        return -1;
3183    FindClose(hList);
3184    return ((FileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0);
3185}
3186#else
3187# include <sys/stat.h>
3188# ifndef S_ISDIR
3189#  if defined(_S_IFMT) && defined(_S_IFDIR)
3190#   define S_ISDIR(a)   (((a) & _S_IFMT) == _S_IFDIR)
3191#  else
3192#   define S_ISDIR(a)   (((a) & S_IFMT) == S_IFDIR)
3193#  endif
3194# endif
3195
3196int app_isdir(const char *name)
3197{
3198# if defined(S_ISDIR)
3199    struct stat st;
3200
3201    if (stat(name, &st) == 0)
3202        return S_ISDIR(st.st_mode);
3203    else
3204        return -1;
3205# else
3206    return -1;
3207# endif
3208}
3209#endif
3210
3211/* raw_read|write section */
3212#if defined(__VMS)
3213# include "vms_term_sock.h"
3214static int stdin_sock = -1;
3215
3216static void close_stdin_sock(void)
3217{
3218    TerminalSocket (TERM_SOCK_DELETE, &stdin_sock);
3219}
3220
3221int fileno_stdin(void)
3222{
3223    if (stdin_sock == -1) {
3224        TerminalSocket(TERM_SOCK_CREATE, &stdin_sock);
3225        atexit(close_stdin_sock);
3226    }
3227
3228    return stdin_sock;
3229}
3230#else
3231int fileno_stdin(void)
3232{
3233    return fileno(stdin);
3234}
3235#endif
3236
3237int fileno_stdout(void)
3238{
3239    return fileno(stdout);
3240}
3241
3242#if defined(_WIN32) && defined(STD_INPUT_HANDLE)
3243int raw_read_stdin(void *buf, int siz)
3244{
3245    DWORD n;
3246    if (ReadFile(GetStdHandle(STD_INPUT_HANDLE), buf, siz, &n, NULL))
3247        return (n);
3248    else
3249        return (-1);
3250}
3251#elif defined(__VMS)
3252#include <sys/socket.h>
3253
3254int raw_read_stdin(void *buf, int siz)
3255{
3256    return recv(fileno_stdin(), buf, siz, 0);
3257}
3258#else
3259int raw_read_stdin(void *buf, int siz)
3260{
3261    return read(fileno_stdin(), buf, siz);
3262}
3263#endif
3264
3265#if defined(_WIN32) && defined(STD_OUTPUT_HANDLE)
3266int raw_write_stdout(const void *buf, int siz)
3267{
3268    DWORD n;
3269    if (WriteFile(GetStdHandle(STD_OUTPUT_HANDLE), buf, siz, &n, NULL))
3270        return (n);
3271    else
3272        return (-1);
3273}
3274#else
3275int raw_write_stdout(const void *buf, int siz)
3276{
3277    return write(fileno_stdout(), buf, siz);
3278}
3279#endif
3280