apps.c revision 306196
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
219    *argv = arg;
220    num = 0;
221    p = buf;
222    for (;;) {
223        if (!*p)
224            break;
225        if (*p == '#') {        /* comment line */
226            while (*p && (*p != '\n'))
227                p++;
228            continue;
229        }
230        /* else we have a line */
231        *(arg++) = p;
232        num++;
233        while (*p && ((*p != ' ') && (*p != '\t') && (*p != '\n')))
234            p++;
235        if (!*p)
236            break;
237        if (*p == '\n') {
238            *(p++) = '\0';
239            continue;
240        }
241        /* else it is a tab or space */
242        p++;
243        while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n')))
244            p++;
245        if (!*p)
246            break;
247        if (*p == '\n') {
248            p++;
249            continue;
250        }
251        *(arg++) = p++;
252        num++;
253        while (*p && (*p != '\n'))
254            p++;
255        if (!*p)
256            break;
257        /* else *p == '\n' */
258        *(p++) = '\0';
259    }
260    *argc = num;
261    return (1);
262}
263#endif
264
265int str2fmt(char *s)
266{
267    if (s == NULL)
268        return FORMAT_UNDEF;
269    if ((*s == 'D') || (*s == 'd'))
270        return (FORMAT_ASN1);
271    else if ((*s == 'T') || (*s == 't'))
272        return (FORMAT_TEXT);
273    else if ((*s == 'N') || (*s == 'n'))
274        return (FORMAT_NETSCAPE);
275    else if ((*s == 'S') || (*s == 's'))
276        return (FORMAT_SMIME);
277    else if ((*s == 'M') || (*s == 'm'))
278        return (FORMAT_MSBLOB);
279    else if ((*s == '1')
280             || (strcmp(s, "PKCS12") == 0) || (strcmp(s, "pkcs12") == 0)
281             || (strcmp(s, "P12") == 0) || (strcmp(s, "p12") == 0))
282        return (FORMAT_PKCS12);
283    else if ((*s == 'E') || (*s == 'e'))
284        return (FORMAT_ENGINE);
285    else if ((*s == 'P') || (*s == 'p')) {
286        if (s[1] == 'V' || s[1] == 'v')
287            return FORMAT_PVK;
288        else
289            return (FORMAT_PEM);
290    } else
291        return (FORMAT_UNDEF);
292}
293
294#if defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16) || defined(OPENSSL_SYS_NETWARE)
295void program_name(char *in, char *out, int size)
296{
297    int i, n;
298    char *p = NULL;
299
300    n = strlen(in);
301    /* find the last '/', '\' or ':' */
302    for (i = n - 1; i > 0; i--) {
303        if ((in[i] == '/') || (in[i] == '\\') || (in[i] == ':')) {
304            p = &(in[i + 1]);
305            break;
306        }
307    }
308    if (p == NULL)
309        p = in;
310    n = strlen(p);
311
312# if defined(OPENSSL_SYS_NETWARE)
313    /* strip off trailing .nlm if present. */
314    if ((n > 4) && (p[n - 4] == '.') &&
315        ((p[n - 3] == 'n') || (p[n - 3] == 'N')) &&
316        ((p[n - 2] == 'l') || (p[n - 2] == 'L')) &&
317        ((p[n - 1] == 'm') || (p[n - 1] == 'M')))
318        n -= 4;
319# else
320    /* strip off trailing .exe if present. */
321    if ((n > 4) && (p[n - 4] == '.') &&
322        ((p[n - 3] == 'e') || (p[n - 3] == 'E')) &&
323        ((p[n - 2] == 'x') || (p[n - 2] == 'X')) &&
324        ((p[n - 1] == 'e') || (p[n - 1] == 'E')))
325        n -= 4;
326# endif
327
328    if (n > size - 1)
329        n = size - 1;
330
331    for (i = 0; i < n; i++) {
332        if ((p[i] >= 'A') && (p[i] <= 'Z'))
333            out[i] = p[i] - 'A' + 'a';
334        else
335            out[i] = p[i];
336    }
337    out[n] = '\0';
338}
339#else
340# ifdef OPENSSL_SYS_VMS
341void program_name(char *in, char *out, int size)
342{
343    char *p = in, *q;
344    char *chars = ":]>";
345
346    while (*chars != '\0') {
347        q = strrchr(p, *chars);
348        if (q > p)
349            p = q + 1;
350        chars++;
351    }
352
353    q = strrchr(p, '.');
354    if (q == NULL)
355        q = p + strlen(p);
356    strncpy(out, p, size - 1);
357    if (q - p >= size) {
358        out[size - 1] = '\0';
359    } else {
360        out[q - p] = '\0';
361    }
362}
363# else
364void program_name(char *in, char *out, int size)
365{
366    char *p;
367
368    p = strrchr(in, '/');
369    if (p != NULL)
370        p++;
371    else
372        p = in;
373    BUF_strlcpy(out, p, size);
374}
375# endif
376#endif
377
378int chopup_args(ARGS *arg, char *buf, int *argc, char **argv[])
379{
380    int num, i;
381    char *p;
382
383    *argc = 0;
384    *argv = NULL;
385
386    i = 0;
387    if (arg->count == 0) {
388        arg->count = 20;
389        arg->data = (char **)OPENSSL_malloc(sizeof(char *) * arg->count);
390        if (arg->data == NULL)
391            return 0;
392    }
393    for (i = 0; i < arg->count; i++)
394        arg->data[i] = NULL;
395
396    num = 0;
397    p = buf;
398    for (;;) {
399        /* first scan over white space */
400        if (!*p)
401            break;
402        while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n')))
403            p++;
404        if (!*p)
405            break;
406
407        /* The start of something good :-) */
408        if (num >= arg->count) {
409            char **tmp_p;
410            int tlen = arg->count + 20;
411            tmp_p = (char **)OPENSSL_realloc(arg->data,
412                                             sizeof(char *) * tlen);
413            if (tmp_p == NULL)
414                return 0;
415            arg->data = tmp_p;
416            arg->count = tlen;
417            /* initialize newly allocated data */
418            for (i = num; i < arg->count; i++)
419                arg->data[i] = NULL;
420        }
421        arg->data[num++] = p;
422
423        /* now look for the end of this */
424        if ((*p == '\'') || (*p == '\"')) { /* scan for closing quote */
425            i = *(p++);
426            arg->data[num - 1]++; /* jump over quote */
427            while (*p && (*p != i))
428                p++;
429            *p = '\0';
430        } else {
431            while (*p && ((*p != ' ') && (*p != '\t') && (*p != '\n')))
432                p++;
433
434            if (*p == '\0')
435                p--;
436            else
437                *p = '\0';
438        }
439        p++;
440    }
441    *argc = num;
442    *argv = arg->data;
443    return (1);
444}
445
446#ifndef APP_INIT
447int app_init(long mesgwin)
448{
449    return (1);
450}
451#endif
452
453int dump_cert_text(BIO *out, X509 *x)
454{
455    char *p;
456
457    p = X509_NAME_oneline(X509_get_subject_name(x), NULL, 0);
458    BIO_puts(out, "subject=");
459    BIO_puts(out, p);
460    OPENSSL_free(p);
461
462    p = X509_NAME_oneline(X509_get_issuer_name(x), NULL, 0);
463    BIO_puts(out, "\nissuer=");
464    BIO_puts(out, p);
465    BIO_puts(out, "\n");
466    OPENSSL_free(p);
467
468    return 0;
469}
470
471static int ui_open(UI *ui)
472{
473    return UI_method_get_opener(UI_OpenSSL())(ui);
474}
475
476static int ui_read(UI *ui, UI_STRING *uis)
477{
478    if (UI_get_input_flags(uis) & UI_INPUT_FLAG_DEFAULT_PWD
479        && UI_get0_user_data(ui)) {
480        switch (UI_get_string_type(uis)) {
481        case UIT_PROMPT:
482        case UIT_VERIFY:
483            {
484                const char *password =
485                    ((PW_CB_DATA *)UI_get0_user_data(ui))->password;
486                if (password && password[0] != '\0') {
487                    UI_set_result(ui, uis, password);
488                    return 1;
489                }
490            }
491        default:
492            break;
493        }
494    }
495    return UI_method_get_reader(UI_OpenSSL())(ui, uis);
496}
497
498static int ui_write(UI *ui, UI_STRING *uis)
499{
500    if (UI_get_input_flags(uis) & UI_INPUT_FLAG_DEFAULT_PWD
501        && UI_get0_user_data(ui)) {
502        switch (UI_get_string_type(uis)) {
503        case UIT_PROMPT:
504        case UIT_VERIFY:
505            {
506                const char *password =
507                    ((PW_CB_DATA *)UI_get0_user_data(ui))->password;
508                if (password && password[0] != '\0')
509                    return 1;
510            }
511        default:
512            break;
513        }
514    }
515    return UI_method_get_writer(UI_OpenSSL())(ui, uis);
516}
517
518static int ui_close(UI *ui)
519{
520    return UI_method_get_closer(UI_OpenSSL())(ui);
521}
522
523int setup_ui_method(void)
524{
525    ui_method = UI_create_method("OpenSSL application user interface");
526    UI_method_set_opener(ui_method, ui_open);
527    UI_method_set_reader(ui_method, ui_read);
528    UI_method_set_writer(ui_method, ui_write);
529    UI_method_set_closer(ui_method, ui_close);
530    return 0;
531}
532
533void destroy_ui_method(void)
534{
535    if (ui_method) {
536        UI_destroy_method(ui_method);
537        ui_method = NULL;
538    }
539}
540
541int password_callback(char *buf, int bufsiz, int verify, PW_CB_DATA *cb_tmp)
542{
543    UI *ui = NULL;
544    int res = 0;
545    const char *prompt_info = NULL;
546    const char *password = NULL;
547    PW_CB_DATA *cb_data = (PW_CB_DATA *)cb_tmp;
548
549    if (cb_data) {
550        if (cb_data->password)
551            password = cb_data->password;
552        if (cb_data->prompt_info)
553            prompt_info = cb_data->prompt_info;
554    }
555
556    if (password) {
557        res = strlen(password);
558        if (res > bufsiz)
559            res = bufsiz;
560        memcpy(buf, password, res);
561        return res;
562    }
563
564    ui = UI_new_method(ui_method);
565    if (ui) {
566        int ok = 0;
567        char *buff = NULL;
568        int ui_flags = 0;
569        char *prompt = NULL;
570
571        prompt = UI_construct_prompt(ui, "pass phrase", prompt_info);
572        if (!prompt) {
573            BIO_printf(bio_err, "Out of memory\n");
574            UI_free(ui);
575            return 0;
576        }
577
578        ui_flags |= UI_INPUT_FLAG_DEFAULT_PWD;
579        UI_ctrl(ui, UI_CTRL_PRINT_ERRORS, 1, 0, 0);
580
581        if (ok >= 0)
582            ok = UI_add_input_string(ui, prompt, ui_flags, buf,
583                                     PW_MIN_LENGTH, bufsiz - 1);
584        if (ok >= 0 && verify) {
585            buff = (char *)OPENSSL_malloc(bufsiz);
586            if (!buff) {
587                BIO_printf(bio_err, "Out of memory\n");
588                UI_free(ui);
589                OPENSSL_free(prompt);
590                return 0;
591            }
592            ok = UI_add_verify_string(ui, prompt, ui_flags, buff,
593                                      PW_MIN_LENGTH, bufsiz - 1, buf);
594        }
595        if (ok >= 0)
596            do {
597                ok = UI_process(ui);
598            }
599            while (ok < 0 && UI_ctrl(ui, UI_CTRL_IS_REDOABLE, 0, 0, 0));
600
601        if (buff) {
602            OPENSSL_cleanse(buff, (unsigned int)bufsiz);
603            OPENSSL_free(buff);
604        }
605
606        if (ok >= 0)
607            res = strlen(buf);
608        if (ok == -1) {
609            BIO_printf(bio_err, "User interface error\n");
610            ERR_print_errors(bio_err);
611            OPENSSL_cleanse(buf, (unsigned int)bufsiz);
612            res = 0;
613        }
614        if (ok == -2) {
615            BIO_printf(bio_err, "aborted!\n");
616            OPENSSL_cleanse(buf, (unsigned int)bufsiz);
617            res = 0;
618        }
619        UI_free(ui);
620        OPENSSL_free(prompt);
621    }
622    return res;
623}
624
625static char *app_get_pass(BIO *err, char *arg, int keepbio);
626
627int app_passwd(BIO *err, char *arg1, char *arg2, char **pass1, char **pass2)
628{
629    int same;
630    if (!arg2 || !arg1 || strcmp(arg1, arg2))
631        same = 0;
632    else
633        same = 1;
634    if (arg1) {
635        *pass1 = app_get_pass(err, arg1, same);
636        if (!*pass1)
637            return 0;
638    } else if (pass1)
639        *pass1 = NULL;
640    if (arg2) {
641        *pass2 = app_get_pass(err, arg2, same ? 2 : 0);
642        if (!*pass2)
643            return 0;
644    } else if (pass2)
645        *pass2 = NULL;
646    return 1;
647}
648
649static char *app_get_pass(BIO *err, char *arg, int keepbio)
650{
651    char *tmp, tpass[APP_PASS_LEN];
652    static BIO *pwdbio = NULL;
653    int i;
654    if (!strncmp(arg, "pass:", 5))
655        return BUF_strdup(arg + 5);
656    if (!strncmp(arg, "env:", 4)) {
657        tmp = getenv(arg + 4);
658        if (!tmp) {
659            BIO_printf(err, "Can't read environment variable %s\n", arg + 4);
660            return NULL;
661        }
662        return BUF_strdup(tmp);
663    }
664    if (!keepbio || !pwdbio) {
665        if (!strncmp(arg, "file:", 5)) {
666            pwdbio = BIO_new_file(arg + 5, "r");
667            if (!pwdbio) {
668                BIO_printf(err, "Can't open file %s\n", arg + 5);
669                return NULL;
670            }
671#if !defined(_WIN32)
672            /*
673             * Under _WIN32, which covers even Win64 and CE, file
674             * descriptors referenced by BIO_s_fd are not inherited
675             * by child process and therefore below is not an option.
676             * It could have been an option if bss_fd.c was operating
677             * on real Windows descriptors, such as those obtained
678             * with CreateFile.
679             */
680        } else if (!strncmp(arg, "fd:", 3)) {
681            BIO *btmp;
682            i = atoi(arg + 3);
683            if (i >= 0)
684                pwdbio = BIO_new_fd(i, BIO_NOCLOSE);
685            if ((i < 0) || !pwdbio) {
686                BIO_printf(err, "Can't access file descriptor %s\n", arg + 3);
687                return NULL;
688            }
689            /*
690             * Can't do BIO_gets on an fd BIO so add a buffering BIO
691             */
692            btmp = BIO_new(BIO_f_buffer());
693            pwdbio = BIO_push(btmp, pwdbio);
694#endif
695        } else if (!strcmp(arg, "stdin")) {
696            pwdbio = BIO_new_fp(stdin, BIO_NOCLOSE);
697            if (!pwdbio) {
698                BIO_printf(err, "Can't open BIO for stdin\n");
699                return NULL;
700            }
701        } else {
702            BIO_printf(err, "Invalid password argument \"%s\"\n", arg);
703            return NULL;
704        }
705    }
706    i = BIO_gets(pwdbio, tpass, APP_PASS_LEN);
707    if (keepbio != 1) {
708        BIO_free_all(pwdbio);
709        pwdbio = NULL;
710    }
711    if (i <= 0) {
712        BIO_printf(err, "Error reading password from BIO\n");
713        return NULL;
714    }
715    tmp = strchr(tpass, '\n');
716    if (tmp)
717        *tmp = 0;
718    return BUF_strdup(tpass);
719}
720
721int add_oid_section(BIO *err, CONF *conf)
722{
723    char *p;
724    STACK_OF(CONF_VALUE) *sktmp;
725    CONF_VALUE *cnf;
726    int i;
727    if (!(p = NCONF_get_string(conf, NULL, "oid_section"))) {
728        ERR_clear_error();
729        return 1;
730    }
731    if (!(sktmp = NCONF_get_section(conf, p))) {
732        BIO_printf(err, "problem loading oid section %s\n", p);
733        return 0;
734    }
735    for (i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
736        cnf = sk_CONF_VALUE_value(sktmp, i);
737        if (OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
738            BIO_printf(err, "problem creating object %s=%s\n",
739                       cnf->name, cnf->value);
740            return 0;
741        }
742    }
743    return 1;
744}
745
746static int load_pkcs12(BIO *err, BIO *in, const char *desc,
747                       pem_password_cb *pem_cb, void *cb_data,
748                       EVP_PKEY **pkey, X509 **cert, STACK_OF(X509) **ca)
749{
750    const char *pass;
751    char tpass[PEM_BUFSIZE];
752    int len, ret = 0;
753    PKCS12 *p12;
754    p12 = d2i_PKCS12_bio(in, NULL);
755    if (p12 == NULL) {
756        BIO_printf(err, "Error loading PKCS12 file for %s\n", desc);
757        goto die;
758    }
759    /* See if an empty password will do */
760    if (PKCS12_verify_mac(p12, "", 0) || PKCS12_verify_mac(p12, NULL, 0))
761        pass = "";
762    else {
763        if (!pem_cb)
764            pem_cb = (pem_password_cb *)password_callback;
765        len = pem_cb(tpass, PEM_BUFSIZE, 0, cb_data);
766        if (len < 0) {
767            BIO_printf(err, "Passpharse callback error for %s\n", desc);
768            goto die;
769        }
770        if (len < PEM_BUFSIZE)
771            tpass[len] = 0;
772        if (!PKCS12_verify_mac(p12, tpass, len)) {
773            BIO_printf(err,
774                       "Mac verify error (wrong password?) in PKCS12 file for %s\n",
775                       desc);
776            goto die;
777        }
778        pass = tpass;
779    }
780    ret = PKCS12_parse(p12, pass, pkey, cert, ca);
781 die:
782    if (p12)
783        PKCS12_free(p12);
784    return ret;
785}
786
787X509 *load_cert(BIO *err, const char *file, int format,
788                const char *pass, ENGINE *e, const char *cert_descrip)
789{
790    X509 *x = NULL;
791    BIO *cert;
792
793    if ((cert = BIO_new(BIO_s_file())) == NULL) {
794        ERR_print_errors(err);
795        goto end;
796    }
797
798    if (file == NULL) {
799#ifdef _IONBF
800# ifndef OPENSSL_NO_SETVBUF_IONBF
801        setvbuf(stdin, NULL, _IONBF, 0);
802# endif                         /* ndef OPENSSL_NO_SETVBUF_IONBF */
803#endif
804        BIO_set_fp(cert, stdin, BIO_NOCLOSE);
805    } else {
806        if (BIO_read_filename(cert, file) <= 0) {
807            BIO_printf(err, "Error opening %s %s\n", cert_descrip, file);
808            ERR_print_errors(err);
809            goto end;
810        }
811    }
812
813    if (format == FORMAT_ASN1)
814        x = d2i_X509_bio(cert, NULL);
815    else if (format == FORMAT_NETSCAPE) {
816        NETSCAPE_X509 *nx;
817        nx = ASN1_item_d2i_bio(ASN1_ITEM_rptr(NETSCAPE_X509), cert, NULL);
818        if (nx == NULL)
819            goto end;
820
821        if ((strncmp(NETSCAPE_CERT_HDR, (char *)nx->header->data,
822                     nx->header->length) != 0)) {
823            NETSCAPE_X509_free(nx);
824            BIO_printf(err, "Error reading header on certificate\n");
825            goto end;
826        }
827        x = nx->cert;
828        nx->cert = NULL;
829        NETSCAPE_X509_free(nx);
830    } else if (format == FORMAT_PEM)
831        x = PEM_read_bio_X509_AUX(cert, NULL,
832                                  (pem_password_cb *)password_callback, NULL);
833    else if (format == FORMAT_PKCS12) {
834        if (!load_pkcs12(err, cert, cert_descrip, NULL, NULL, NULL, &x, NULL))
835            goto end;
836    } else {
837        BIO_printf(err, "bad input format specified for %s\n", cert_descrip);
838        goto end;
839    }
840 end:
841    if (x == NULL) {
842        BIO_printf(err, "unable to load certificate\n");
843        ERR_print_errors(err);
844    }
845    if (cert != NULL)
846        BIO_free(cert);
847    return (x);
848}
849
850EVP_PKEY *load_key(BIO *err, const char *file, int format, int maybe_stdin,
851                   const char *pass, ENGINE *e, const char *key_descrip)
852{
853    BIO *key = NULL;
854    EVP_PKEY *pkey = NULL;
855    PW_CB_DATA cb_data;
856
857    cb_data.password = pass;
858    cb_data.prompt_info = file;
859
860    if (file == NULL && (!maybe_stdin || format == FORMAT_ENGINE)) {
861        BIO_printf(err, "no keyfile specified\n");
862        goto end;
863    }
864#ifndef OPENSSL_NO_ENGINE
865    if (format == FORMAT_ENGINE) {
866        if (!e)
867            BIO_printf(err, "no engine specified\n");
868        else {
869            pkey = ENGINE_load_private_key(e, file, ui_method, &cb_data);
870            if (!pkey) {
871                BIO_printf(err, "cannot load %s from engine\n", key_descrip);
872                ERR_print_errors(err);
873            }
874        }
875        goto end;
876    }
877#endif
878    key = BIO_new(BIO_s_file());
879    if (key == NULL) {
880        ERR_print_errors(err);
881        goto end;
882    }
883    if (file == NULL && maybe_stdin) {
884#ifdef _IONBF
885# ifndef OPENSSL_NO_SETVBUF_IONBF
886        setvbuf(stdin, NULL, _IONBF, 0);
887# endif                         /* ndef OPENSSL_NO_SETVBUF_IONBF */
888#endif
889        BIO_set_fp(key, stdin, BIO_NOCLOSE);
890    } else if (BIO_read_filename(key, file) <= 0) {
891        BIO_printf(err, "Error opening %s %s\n", key_descrip, file);
892        ERR_print_errors(err);
893        goto end;
894    }
895    if (format == FORMAT_ASN1) {
896        pkey = d2i_PrivateKey_bio(key, NULL);
897    } else if (format == FORMAT_PEM) {
898        pkey = PEM_read_bio_PrivateKey(key, NULL,
899                                       (pem_password_cb *)password_callback,
900                                       &cb_data);
901    }
902#if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
903    else if (format == FORMAT_NETSCAPE || format == FORMAT_IISSGC)
904        pkey = load_netscape_key(err, key, file, key_descrip, format);
905#endif
906    else if (format == FORMAT_PKCS12) {
907        if (!load_pkcs12(err, key, key_descrip,
908                         (pem_password_cb *)password_callback, &cb_data,
909                         &pkey, NULL, NULL))
910            goto end;
911    }
912#if !defined(OPENSSL_NO_RSA) && !defined(OPENSSL_NO_DSA) && !defined (OPENSSL_NO_RC4)
913    else if (format == FORMAT_MSBLOB)
914        pkey = b2i_PrivateKey_bio(key);
915    else if (format == FORMAT_PVK)
916        pkey = b2i_PVK_bio(key, (pem_password_cb *)password_callback,
917                           &cb_data);
918#endif
919    else {
920        BIO_printf(err, "bad input format specified for key file\n");
921        goto end;
922    }
923 end:
924    if (key != NULL)
925        BIO_free(key);
926    if (pkey == NULL) {
927        BIO_printf(err, "unable to load %s\n", key_descrip);
928        ERR_print_errors(err);
929    }
930    return (pkey);
931}
932
933EVP_PKEY *load_pubkey(BIO *err, const char *file, int format, int maybe_stdin,
934                      const char *pass, ENGINE *e, const char *key_descrip)
935{
936    BIO *key = NULL;
937    EVP_PKEY *pkey = NULL;
938    PW_CB_DATA cb_data;
939
940    cb_data.password = pass;
941    cb_data.prompt_info = file;
942
943    if (file == NULL && (!maybe_stdin || format == FORMAT_ENGINE)) {
944        BIO_printf(err, "no keyfile specified\n");
945        goto end;
946    }
947#ifndef OPENSSL_NO_ENGINE
948    if (format == FORMAT_ENGINE) {
949        if (!e)
950            BIO_printf(bio_err, "no engine specified\n");
951        else
952            pkey = ENGINE_load_public_key(e, file, ui_method, &cb_data);
953        goto end;
954    }
955#endif
956    key = BIO_new(BIO_s_file());
957    if (key == NULL) {
958        ERR_print_errors(err);
959        goto end;
960    }
961    if (file == NULL && maybe_stdin) {
962#ifdef _IONBF
963# ifndef OPENSSL_NO_SETVBUF_IONBF
964        setvbuf(stdin, NULL, _IONBF, 0);
965# endif                         /* ndef OPENSSL_NO_SETVBUF_IONBF */
966#endif
967        BIO_set_fp(key, stdin, BIO_NOCLOSE);
968    } else if (BIO_read_filename(key, file) <= 0) {
969        BIO_printf(err, "Error opening %s %s\n", key_descrip, file);
970        ERR_print_errors(err);
971        goto end;
972    }
973    if (format == FORMAT_ASN1) {
974        pkey = d2i_PUBKEY_bio(key, NULL);
975    }
976#ifndef OPENSSL_NO_RSA
977    else if (format == FORMAT_ASN1RSA) {
978        RSA *rsa;
979        rsa = d2i_RSAPublicKey_bio(key, NULL);
980        if (rsa) {
981            pkey = EVP_PKEY_new();
982            if (pkey)
983                EVP_PKEY_set1_RSA(pkey, rsa);
984            RSA_free(rsa);
985        } else
986            pkey = NULL;
987    } else if (format == FORMAT_PEMRSA) {
988        RSA *rsa;
989        rsa = PEM_read_bio_RSAPublicKey(key, NULL,
990                                        (pem_password_cb *)password_callback,
991                                        &cb_data);
992        if (rsa) {
993            pkey = EVP_PKEY_new();
994            if (pkey)
995                EVP_PKEY_set1_RSA(pkey, rsa);
996            RSA_free(rsa);
997        } else
998            pkey = NULL;
999    }
1000#endif
1001    else if (format == FORMAT_PEM) {
1002        pkey = PEM_read_bio_PUBKEY(key, NULL,
1003                                   (pem_password_cb *)password_callback,
1004                                   &cb_data);
1005    }
1006#if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
1007    else if (format == FORMAT_NETSCAPE || format == FORMAT_IISSGC)
1008        pkey = load_netscape_key(err, key, file, key_descrip, format);
1009#endif
1010#if !defined(OPENSSL_NO_RSA) && !defined(OPENSSL_NO_DSA)
1011    else if (format == FORMAT_MSBLOB)
1012        pkey = b2i_PublicKey_bio(key);
1013#endif
1014    else {
1015        BIO_printf(err, "bad input format specified for key file\n");
1016        goto end;
1017    }
1018 end:
1019    if (key != NULL)
1020        BIO_free(key);
1021    if (pkey == NULL)
1022        BIO_printf(err, "unable to load %s\n", key_descrip);
1023    return (pkey);
1024}
1025
1026#if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_RSA)
1027static EVP_PKEY *load_netscape_key(BIO *err, BIO *key, const char *file,
1028                                   const char *key_descrip, int format)
1029{
1030    EVP_PKEY *pkey;
1031    BUF_MEM *buf;
1032    RSA *rsa;
1033    const unsigned char *p;
1034    int size, i;
1035
1036    buf = BUF_MEM_new();
1037    pkey = EVP_PKEY_new();
1038    size = 0;
1039    if (buf == NULL || pkey == NULL)
1040        goto error;
1041    for (;;) {
1042        if (!BUF_MEM_grow_clean(buf, size + 1024 * 10))
1043            goto error;
1044        i = BIO_read(key, &(buf->data[size]), 1024 * 10);
1045        size += i;
1046        if (i == 0)
1047            break;
1048        if (i < 0) {
1049            BIO_printf(err, "Error reading %s %s", key_descrip, file);
1050            goto error;
1051        }
1052    }
1053    p = (unsigned char *)buf->data;
1054    rsa = d2i_RSA_NET(NULL, &p, (long)size, NULL,
1055                      (format == FORMAT_IISSGC ? 1 : 0));
1056    if (rsa == NULL)
1057        goto error;
1058    BUF_MEM_free(buf);
1059    EVP_PKEY_set1_RSA(pkey, rsa);
1060    return pkey;
1061 error:
1062    BUF_MEM_free(buf);
1063    EVP_PKEY_free(pkey);
1064    return NULL;
1065}
1066#endif                          /* ndef OPENSSL_NO_RC4 */
1067
1068static int load_certs_crls(BIO *err, const char *file, int format,
1069                           const char *pass, ENGINE *e, const char *desc,
1070                           STACK_OF(X509) **pcerts,
1071                           STACK_OF(X509_CRL) **pcrls)
1072{
1073    int i;
1074    BIO *bio;
1075    STACK_OF(X509_INFO) *xis = NULL;
1076    X509_INFO *xi;
1077    PW_CB_DATA cb_data;
1078    int rv = 0;
1079
1080    cb_data.password = pass;
1081    cb_data.prompt_info = file;
1082
1083    if (format != FORMAT_PEM) {
1084        BIO_printf(err, "bad input format specified for %s\n", desc);
1085        return 0;
1086    }
1087
1088    if (file == NULL)
1089        bio = BIO_new_fp(stdin, BIO_NOCLOSE);
1090    else
1091        bio = BIO_new_file(file, "r");
1092
1093    if (bio == NULL) {
1094        BIO_printf(err, "Error opening %s %s\n", desc, file ? file : "stdin");
1095        ERR_print_errors(err);
1096        return 0;
1097    }
1098
1099    xis = PEM_X509_INFO_read_bio(bio, NULL,
1100                                 (pem_password_cb *)password_callback,
1101                                 &cb_data);
1102
1103    BIO_free(bio);
1104
1105    if (pcerts) {
1106        *pcerts = sk_X509_new_null();
1107        if (!*pcerts)
1108            goto end;
1109    }
1110
1111    if (pcrls) {
1112        *pcrls = sk_X509_CRL_new_null();
1113        if (!*pcrls)
1114            goto end;
1115    }
1116
1117    for (i = 0; i < sk_X509_INFO_num(xis); i++) {
1118        xi = sk_X509_INFO_value(xis, i);
1119        if (xi->x509 && pcerts) {
1120            if (!sk_X509_push(*pcerts, xi->x509))
1121                goto end;
1122            xi->x509 = NULL;
1123        }
1124        if (xi->crl && pcrls) {
1125            if (!sk_X509_CRL_push(*pcrls, xi->crl))
1126                goto end;
1127            xi->crl = NULL;
1128        }
1129    }
1130
1131    if (pcerts && sk_X509_num(*pcerts) > 0)
1132        rv = 1;
1133
1134    if (pcrls && sk_X509_CRL_num(*pcrls) > 0)
1135        rv = 1;
1136
1137 end:
1138
1139    if (xis)
1140        sk_X509_INFO_pop_free(xis, X509_INFO_free);
1141
1142    if (rv == 0) {
1143        if (pcerts) {
1144            sk_X509_pop_free(*pcerts, X509_free);
1145            *pcerts = NULL;
1146        }
1147        if (pcrls) {
1148            sk_X509_CRL_pop_free(*pcrls, X509_CRL_free);
1149            *pcrls = NULL;
1150        }
1151        BIO_printf(err, "unable to load %s\n",
1152                   pcerts ? "certificates" : "CRLs");
1153        ERR_print_errors(err);
1154    }
1155    return rv;
1156}
1157
1158STACK_OF(X509) *load_certs(BIO *err, const char *file, int format,
1159                           const char *pass, ENGINE *e, const char *desc)
1160{
1161    STACK_OF(X509) *certs;
1162    if (!load_certs_crls(err, file, format, pass, e, desc, &certs, NULL))
1163        return NULL;
1164    return certs;
1165}
1166
1167STACK_OF(X509_CRL) *load_crls(BIO *err, const char *file, int format,
1168                              const char *pass, ENGINE *e, const char *desc)
1169{
1170    STACK_OF(X509_CRL) *crls;
1171    if (!load_certs_crls(err, file, format, pass, e, desc, NULL, &crls))
1172        return NULL;
1173    return crls;
1174}
1175
1176#define X509V3_EXT_UNKNOWN_MASK         (0xfL << 16)
1177/* Return error for unknown extensions */
1178#define X509V3_EXT_DEFAULT              0
1179/* Print error for unknown extensions */
1180#define X509V3_EXT_ERROR_UNKNOWN        (1L << 16)
1181/* ASN1 parse unknown extensions */
1182#define X509V3_EXT_PARSE_UNKNOWN        (2L << 16)
1183/* BIO_dump unknown extensions */
1184#define X509V3_EXT_DUMP_UNKNOWN         (3L << 16)
1185
1186#define X509_FLAG_CA (X509_FLAG_NO_ISSUER | X509_FLAG_NO_PUBKEY | \
1187                         X509_FLAG_NO_HEADER | X509_FLAG_NO_VERSION)
1188
1189int set_cert_ex(unsigned long *flags, const char *arg)
1190{
1191    static const NAME_EX_TBL cert_tbl[] = {
1192        {"compatible", X509_FLAG_COMPAT, 0xffffffffl},
1193        {"ca_default", X509_FLAG_CA, 0xffffffffl},
1194        {"no_header", X509_FLAG_NO_HEADER, 0},
1195        {"no_version", X509_FLAG_NO_VERSION, 0},
1196        {"no_serial", X509_FLAG_NO_SERIAL, 0},
1197        {"no_signame", X509_FLAG_NO_SIGNAME, 0},
1198        {"no_validity", X509_FLAG_NO_VALIDITY, 0},
1199        {"no_subject", X509_FLAG_NO_SUBJECT, 0},
1200        {"no_issuer", X509_FLAG_NO_ISSUER, 0},
1201        {"no_pubkey", X509_FLAG_NO_PUBKEY, 0},
1202        {"no_extensions", X509_FLAG_NO_EXTENSIONS, 0},
1203        {"no_sigdump", X509_FLAG_NO_SIGDUMP, 0},
1204        {"no_aux", X509_FLAG_NO_AUX, 0},
1205        {"no_attributes", X509_FLAG_NO_ATTRIBUTES, 0},
1206        {"ext_default", X509V3_EXT_DEFAULT, X509V3_EXT_UNKNOWN_MASK},
1207        {"ext_error", X509V3_EXT_ERROR_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1208        {"ext_parse", X509V3_EXT_PARSE_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1209        {"ext_dump", X509V3_EXT_DUMP_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
1210        {NULL, 0, 0}
1211    };
1212    return set_multi_opts(flags, arg, cert_tbl);
1213}
1214
1215int set_name_ex(unsigned long *flags, const char *arg)
1216{
1217    static const NAME_EX_TBL ex_tbl[] = {
1218        {"esc_2253", ASN1_STRFLGS_ESC_2253, 0},
1219        {"esc_ctrl", ASN1_STRFLGS_ESC_CTRL, 0},
1220        {"esc_msb", ASN1_STRFLGS_ESC_MSB, 0},
1221        {"use_quote", ASN1_STRFLGS_ESC_QUOTE, 0},
1222        {"utf8", ASN1_STRFLGS_UTF8_CONVERT, 0},
1223        {"ignore_type", ASN1_STRFLGS_IGNORE_TYPE, 0},
1224        {"show_type", ASN1_STRFLGS_SHOW_TYPE, 0},
1225        {"dump_all", ASN1_STRFLGS_DUMP_ALL, 0},
1226        {"dump_nostr", ASN1_STRFLGS_DUMP_UNKNOWN, 0},
1227        {"dump_der", ASN1_STRFLGS_DUMP_DER, 0},
1228        {"compat", XN_FLAG_COMPAT, 0xffffffffL},
1229        {"sep_comma_plus", XN_FLAG_SEP_COMMA_PLUS, XN_FLAG_SEP_MASK},
1230        {"sep_comma_plus_space", XN_FLAG_SEP_CPLUS_SPC, XN_FLAG_SEP_MASK},
1231        {"sep_semi_plus_space", XN_FLAG_SEP_SPLUS_SPC, XN_FLAG_SEP_MASK},
1232        {"sep_multiline", XN_FLAG_SEP_MULTILINE, XN_FLAG_SEP_MASK},
1233        {"dn_rev", XN_FLAG_DN_REV, 0},
1234        {"nofname", XN_FLAG_FN_NONE, XN_FLAG_FN_MASK},
1235        {"sname", XN_FLAG_FN_SN, XN_FLAG_FN_MASK},
1236        {"lname", XN_FLAG_FN_LN, XN_FLAG_FN_MASK},
1237        {"align", XN_FLAG_FN_ALIGN, 0},
1238        {"oid", XN_FLAG_FN_OID, XN_FLAG_FN_MASK},
1239        {"space_eq", XN_FLAG_SPC_EQ, 0},
1240        {"dump_unknown", XN_FLAG_DUMP_UNKNOWN_FIELDS, 0},
1241        {"RFC2253", XN_FLAG_RFC2253, 0xffffffffL},
1242        {"oneline", XN_FLAG_ONELINE, 0xffffffffL},
1243        {"multiline", XN_FLAG_MULTILINE, 0xffffffffL},
1244        {"ca_default", XN_FLAG_MULTILINE, 0xffffffffL},
1245        {NULL, 0, 0}
1246    };
1247    if (set_multi_opts(flags, arg, ex_tbl) == 0)
1248        return 0;
1249    if ((*flags & XN_FLAG_SEP_MASK) == 0)
1250        *flags |= XN_FLAG_SEP_CPLUS_SPC;
1251    return 1;
1252}
1253
1254int set_ext_copy(int *copy_type, const char *arg)
1255{
1256    if (!strcasecmp(arg, "none"))
1257        *copy_type = EXT_COPY_NONE;
1258    else if (!strcasecmp(arg, "copy"))
1259        *copy_type = EXT_COPY_ADD;
1260    else if (!strcasecmp(arg, "copyall"))
1261        *copy_type = EXT_COPY_ALL;
1262    else
1263        return 0;
1264    return 1;
1265}
1266
1267int copy_extensions(X509 *x, X509_REQ *req, int copy_type)
1268{
1269    STACK_OF(X509_EXTENSION) *exts = NULL;
1270    X509_EXTENSION *ext, *tmpext;
1271    ASN1_OBJECT *obj;
1272    int i, idx, ret = 0;
1273    if (!x || !req || (copy_type == EXT_COPY_NONE))
1274        return 1;
1275    exts = X509_REQ_get_extensions(req);
1276
1277    for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
1278        ext = sk_X509_EXTENSION_value(exts, i);
1279        obj = X509_EXTENSION_get_object(ext);
1280        idx = X509_get_ext_by_OBJ(x, obj, -1);
1281        /* Does extension exist? */
1282        if (idx != -1) {
1283            /* If normal copy don't override existing extension */
1284            if (copy_type == EXT_COPY_ADD)
1285                continue;
1286            /* Delete all extensions of same type */
1287            do {
1288                tmpext = X509_get_ext(x, idx);
1289                X509_delete_ext(x, idx);
1290                X509_EXTENSION_free(tmpext);
1291                idx = X509_get_ext_by_OBJ(x, obj, -1);
1292            } while (idx != -1);
1293        }
1294        if (!X509_add_ext(x, ext, -1))
1295            goto end;
1296    }
1297
1298    ret = 1;
1299
1300 end:
1301
1302    sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
1303
1304    return ret;
1305}
1306
1307static int set_multi_opts(unsigned long *flags, const char *arg,
1308                          const NAME_EX_TBL * in_tbl)
1309{
1310    STACK_OF(CONF_VALUE) *vals;
1311    CONF_VALUE *val;
1312    int i, ret = 1;
1313    if (!arg)
1314        return 0;
1315    vals = X509V3_parse_list(arg);
1316    for (i = 0; i < sk_CONF_VALUE_num(vals); i++) {
1317        val = sk_CONF_VALUE_value(vals, i);
1318        if (!set_table_opts(flags, val->name, in_tbl))
1319            ret = 0;
1320    }
1321    sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
1322    return ret;
1323}
1324
1325static int set_table_opts(unsigned long *flags, const char *arg,
1326                          const NAME_EX_TBL * in_tbl)
1327{
1328    char c;
1329    const NAME_EX_TBL *ptbl;
1330    c = arg[0];
1331
1332    if (c == '-') {
1333        c = 0;
1334        arg++;
1335    } else if (c == '+') {
1336        c = 1;
1337        arg++;
1338    } else
1339        c = 1;
1340
1341    for (ptbl = in_tbl; ptbl->name; ptbl++) {
1342        if (!strcasecmp(arg, ptbl->name)) {
1343            *flags &= ~ptbl->mask;
1344            if (c)
1345                *flags |= ptbl->flag;
1346            else
1347                *flags &= ~ptbl->flag;
1348            return 1;
1349        }
1350    }
1351    return 0;
1352}
1353
1354void print_name(BIO *out, const char *title, X509_NAME *nm,
1355                unsigned long lflags)
1356{
1357    char *buf;
1358    char mline = 0;
1359    int indent = 0;
1360
1361    if (title)
1362        BIO_puts(out, title);
1363    if ((lflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
1364        mline = 1;
1365        indent = 4;
1366    }
1367    if (lflags == XN_FLAG_COMPAT) {
1368        buf = X509_NAME_oneline(nm, 0, 0);
1369        BIO_puts(out, buf);
1370        BIO_puts(out, "\n");
1371        OPENSSL_free(buf);
1372    } else {
1373        if (mline)
1374            BIO_puts(out, "\n");
1375        X509_NAME_print_ex(out, nm, indent, lflags);
1376        BIO_puts(out, "\n");
1377    }
1378}
1379
1380X509_STORE *setup_verify(BIO *bp, char *CAfile, char *CApath)
1381{
1382    X509_STORE *store;
1383    X509_LOOKUP *lookup;
1384    if (!(store = X509_STORE_new()))
1385        goto end;
1386    lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file());
1387    if (lookup == NULL)
1388        goto end;
1389    if (CAfile) {
1390        if (!X509_LOOKUP_load_file(lookup, CAfile, X509_FILETYPE_PEM)) {
1391            BIO_printf(bp, "Error loading file %s\n", CAfile);
1392            goto end;
1393        }
1394    } else
1395        X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
1396
1397    lookup = X509_STORE_add_lookup(store, X509_LOOKUP_hash_dir());
1398    if (lookup == NULL)
1399        goto end;
1400    if (CApath) {
1401        if (!X509_LOOKUP_add_dir(lookup, CApath, X509_FILETYPE_PEM)) {
1402            BIO_printf(bp, "Error loading directory %s\n", CApath);
1403            goto end;
1404        }
1405    } else
1406        X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
1407
1408    ERR_clear_error();
1409    return store;
1410 end:
1411    X509_STORE_free(store);
1412    return NULL;
1413}
1414
1415#ifndef OPENSSL_NO_ENGINE
1416/* Try to load an engine in a shareable library */
1417static ENGINE *try_load_engine(BIO *err, const char *engine, int debug)
1418{
1419    ENGINE *e = ENGINE_by_id("dynamic");
1420    if (e) {
1421        if (!ENGINE_ctrl_cmd_string(e, "SO_PATH", engine, 0)
1422            || !ENGINE_ctrl_cmd_string(e, "LOAD", NULL, 0)) {
1423            ENGINE_free(e);
1424            e = NULL;
1425        }
1426    }
1427    return e;
1428}
1429
1430ENGINE *setup_engine(BIO *err, const char *engine, int debug)
1431{
1432    ENGINE *e = NULL;
1433
1434    if (engine) {
1435        if (strcmp(engine, "auto") == 0) {
1436            BIO_printf(err, "enabling auto ENGINE support\n");
1437            ENGINE_register_all_complete();
1438            return NULL;
1439        }
1440        if ((e = ENGINE_by_id(engine)) == NULL
1441            && (e = try_load_engine(err, engine, debug)) == NULL) {
1442            BIO_printf(err, "invalid engine \"%s\"\n", engine);
1443            ERR_print_errors(err);
1444            return NULL;
1445        }
1446        if (debug) {
1447            ENGINE_ctrl(e, ENGINE_CTRL_SET_LOGSTREAM, 0, err, 0);
1448        }
1449        ENGINE_ctrl_cmd(e, "SET_USER_INTERFACE", 0, ui_method, 0, 1);
1450        if (!ENGINE_set_default(e, ENGINE_METHOD_ALL)) {
1451            BIO_printf(err, "can't use that engine\n");
1452            ERR_print_errors(err);
1453            ENGINE_free(e);
1454            return NULL;
1455        }
1456
1457        BIO_printf(err, "engine \"%s\" set.\n", ENGINE_get_id(e));
1458
1459        /* Free our "structural" reference. */
1460        ENGINE_free(e);
1461    }
1462    return e;
1463}
1464#endif
1465
1466int load_config(BIO *err, CONF *cnf)
1467{
1468    static int load_config_called = 0;
1469    if (load_config_called)
1470        return 1;
1471    load_config_called = 1;
1472    if (!cnf)
1473        cnf = config;
1474    if (!cnf)
1475        return 1;
1476
1477    OPENSSL_load_builtin_modules();
1478
1479    if (CONF_modules_load(cnf, NULL, 0) <= 0) {
1480        BIO_printf(err, "Error configuring OpenSSL\n");
1481        ERR_print_errors(err);
1482        return 0;
1483    }
1484    return 1;
1485}
1486
1487char *make_config_name()
1488{
1489    const char *t = X509_get_default_cert_area();
1490    size_t len;
1491    char *p;
1492
1493    len = strlen(t) + strlen(OPENSSL_CONF) + 2;
1494    p = OPENSSL_malloc(len);
1495    if (p == NULL)
1496        return NULL;
1497    BUF_strlcpy(p, t, len);
1498#ifndef OPENSSL_SYS_VMS
1499    BUF_strlcat(p, "/", len);
1500#endif
1501    BUF_strlcat(p, OPENSSL_CONF, len);
1502
1503    return p;
1504}
1505
1506static unsigned long index_serial_hash(const OPENSSL_CSTRING *a)
1507{
1508    const char *n;
1509
1510    n = a[DB_serial];
1511    while (*n == '0')
1512        n++;
1513    return (lh_strhash(n));
1514}
1515
1516static int index_serial_cmp(const OPENSSL_CSTRING *a,
1517                            const OPENSSL_CSTRING *b)
1518{
1519    const char *aa, *bb;
1520
1521    for (aa = a[DB_serial]; *aa == '0'; aa++) ;
1522    for (bb = b[DB_serial]; *bb == '0'; bb++) ;
1523    return (strcmp(aa, bb));
1524}
1525
1526static int index_name_qual(char **a)
1527{
1528    return (a[0][0] == 'V');
1529}
1530
1531static unsigned long index_name_hash(const OPENSSL_CSTRING *a)
1532{
1533    return (lh_strhash(a[DB_name]));
1534}
1535
1536int index_name_cmp(const OPENSSL_CSTRING *a, const OPENSSL_CSTRING *b)
1537{
1538    return (strcmp(a[DB_name], b[DB_name]));
1539}
1540
1541static IMPLEMENT_LHASH_HASH_FN(index_serial, OPENSSL_CSTRING)
1542static IMPLEMENT_LHASH_COMP_FN(index_serial, OPENSSL_CSTRING)
1543static IMPLEMENT_LHASH_HASH_FN(index_name, OPENSSL_CSTRING)
1544static IMPLEMENT_LHASH_COMP_FN(index_name, OPENSSL_CSTRING)
1545#undef BSIZE
1546#define BSIZE 256
1547BIGNUM *load_serial(char *serialfile, int create, ASN1_INTEGER **retai)
1548{
1549    BIO *in = NULL;
1550    BIGNUM *ret = NULL;
1551    MS_STATIC char buf[1024];
1552    ASN1_INTEGER *ai = NULL;
1553
1554    ai = ASN1_INTEGER_new();
1555    if (ai == NULL)
1556        goto err;
1557
1558    if ((in = BIO_new(BIO_s_file())) == NULL) {
1559        ERR_print_errors(bio_err);
1560        goto err;
1561    }
1562
1563    if (BIO_read_filename(in, serialfile) <= 0) {
1564        if (!create) {
1565            perror(serialfile);
1566            goto err;
1567        } else {
1568            ret = BN_new();
1569            if (ret == NULL || !rand_serial(ret, ai))
1570                BIO_printf(bio_err, "Out of memory\n");
1571        }
1572    } else {
1573        if (!a2i_ASN1_INTEGER(in, ai, buf, 1024)) {
1574            BIO_printf(bio_err, "unable to load number from %s\n",
1575                       serialfile);
1576            goto err;
1577        }
1578        ret = ASN1_INTEGER_to_BN(ai, NULL);
1579        if (ret == NULL) {
1580            BIO_printf(bio_err,
1581                       "error converting number from bin to BIGNUM\n");
1582            goto err;
1583        }
1584    }
1585
1586    if (ret && retai) {
1587        *retai = ai;
1588        ai = NULL;
1589    }
1590 err:
1591    if (in != NULL)
1592        BIO_free(in);
1593    if (ai != NULL)
1594        ASN1_INTEGER_free(ai);
1595    return (ret);
1596}
1597
1598int save_serial(char *serialfile, char *suffix, BIGNUM *serial,
1599                ASN1_INTEGER **retai)
1600{
1601    char buf[1][BSIZE];
1602    BIO *out = NULL;
1603    int ret = 0;
1604    ASN1_INTEGER *ai = NULL;
1605    int j;
1606
1607    if (suffix == NULL)
1608        j = strlen(serialfile);
1609    else
1610        j = strlen(serialfile) + strlen(suffix) + 1;
1611    if (j >= BSIZE) {
1612        BIO_printf(bio_err, "file name too long\n");
1613        goto err;
1614    }
1615
1616    if (suffix == NULL)
1617        BUF_strlcpy(buf[0], serialfile, BSIZE);
1618    else {
1619#ifndef OPENSSL_SYS_VMS
1620        j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s", serialfile, suffix);
1621#else
1622        j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s", serialfile, suffix);
1623#endif
1624    }
1625#ifdef RL_DEBUG
1626    BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[0]);
1627#endif
1628    out = BIO_new(BIO_s_file());
1629    if (out == NULL) {
1630        ERR_print_errors(bio_err);
1631        goto err;
1632    }
1633    if (BIO_write_filename(out, buf[0]) <= 0) {
1634        perror(serialfile);
1635        goto err;
1636    }
1637
1638    if ((ai = BN_to_ASN1_INTEGER(serial, NULL)) == NULL) {
1639        BIO_printf(bio_err, "error converting serial to ASN.1 format\n");
1640        goto err;
1641    }
1642    i2a_ASN1_INTEGER(out, ai);
1643    BIO_puts(out, "\n");
1644    ret = 1;
1645    if (retai) {
1646        *retai = ai;
1647        ai = NULL;
1648    }
1649 err:
1650    if (out != NULL)
1651        BIO_free_all(out);
1652    if (ai != NULL)
1653        ASN1_INTEGER_free(ai);
1654    return (ret);
1655}
1656
1657int rotate_serial(char *serialfile, char *new_suffix, char *old_suffix)
1658{
1659    char buf[5][BSIZE];
1660    int i, j;
1661
1662    i = strlen(serialfile) + strlen(old_suffix);
1663    j = strlen(serialfile) + strlen(new_suffix);
1664    if (i > j)
1665        j = i;
1666    if (j + 1 >= BSIZE) {
1667        BIO_printf(bio_err, "file name too long\n");
1668        goto err;
1669    }
1670#ifndef OPENSSL_SYS_VMS
1671    j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s", serialfile, new_suffix);
1672#else
1673    j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s", serialfile, new_suffix);
1674#endif
1675#ifndef OPENSSL_SYS_VMS
1676    j = BIO_snprintf(buf[1], sizeof buf[1], "%s.%s", serialfile, old_suffix);
1677#else
1678    j = BIO_snprintf(buf[1], sizeof buf[1], "%s-%s", serialfile, old_suffix);
1679#endif
1680#ifdef RL_DEBUG
1681    BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1682               serialfile, buf[1]);
1683#endif
1684    if (rename(serialfile, buf[1]) < 0 && errno != ENOENT
1685#ifdef ENOTDIR
1686        && errno != ENOTDIR
1687#endif
1688        ) {
1689        BIO_printf(bio_err,
1690                   "unable to rename %s to %s\n", serialfile, buf[1]);
1691        perror("reason");
1692        goto err;
1693    }
1694#ifdef RL_DEBUG
1695    BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n",
1696               buf[0], serialfile);
1697#endif
1698    if (rename(buf[0], serialfile) < 0) {
1699        BIO_printf(bio_err,
1700                   "unable to rename %s to %s\n", buf[0], serialfile);
1701        perror("reason");
1702        rename(buf[1], serialfile);
1703        goto err;
1704    }
1705    return 1;
1706 err:
1707    return 0;
1708}
1709
1710int rand_serial(BIGNUM *b, ASN1_INTEGER *ai)
1711{
1712    BIGNUM *btmp;
1713    int ret = 0;
1714    if (b)
1715        btmp = b;
1716    else
1717        btmp = BN_new();
1718
1719    if (!btmp)
1720        return 0;
1721
1722    if (!BN_pseudo_rand(btmp, SERIAL_RAND_BITS, 0, 0))
1723        goto error;
1724    if (ai && !BN_to_ASN1_INTEGER(btmp, ai))
1725        goto error;
1726
1727    ret = 1;
1728
1729 error:
1730
1731    if (!b)
1732        BN_free(btmp);
1733
1734    return ret;
1735}
1736
1737CA_DB *load_index(char *dbfile, DB_ATTR *db_attr)
1738{
1739    CA_DB *retdb = NULL;
1740    TXT_DB *tmpdb = NULL;
1741    BIO *in = BIO_new(BIO_s_file());
1742    CONF *dbattr_conf = NULL;
1743    char buf[1][BSIZE];
1744    long errorline = -1;
1745
1746    if (in == NULL) {
1747        ERR_print_errors(bio_err);
1748        goto err;
1749    }
1750    if (BIO_read_filename(in, dbfile) <= 0) {
1751        perror(dbfile);
1752        BIO_printf(bio_err, "unable to open '%s'\n", dbfile);
1753        goto err;
1754    }
1755    if ((tmpdb = TXT_DB_read(in, DB_NUMBER)) == NULL)
1756        goto err;
1757
1758#ifndef OPENSSL_SYS_VMS
1759    BIO_snprintf(buf[0], sizeof buf[0], "%s.attr", dbfile);
1760#else
1761    BIO_snprintf(buf[0], sizeof buf[0], "%s-attr", dbfile);
1762#endif
1763    dbattr_conf = NCONF_new(NULL);
1764    if (NCONF_load(dbattr_conf, buf[0], &errorline) <= 0) {
1765        if (errorline > 0) {
1766            BIO_printf(bio_err,
1767                       "error on line %ld of db attribute file '%s'\n",
1768                       errorline, buf[0]);
1769            goto err;
1770        } else {
1771            NCONF_free(dbattr_conf);
1772            dbattr_conf = NULL;
1773        }
1774    }
1775
1776    if ((retdb = OPENSSL_malloc(sizeof(CA_DB))) == NULL) {
1777        fprintf(stderr, "Out of memory\n");
1778        goto err;
1779    }
1780
1781    retdb->db = tmpdb;
1782    tmpdb = NULL;
1783    if (db_attr)
1784        retdb->attributes = *db_attr;
1785    else {
1786        retdb->attributes.unique_subject = 1;
1787    }
1788
1789    if (dbattr_conf) {
1790        char *p = NCONF_get_string(dbattr_conf, NULL, "unique_subject");
1791        if (p) {
1792#ifdef RL_DEBUG
1793            BIO_printf(bio_err,
1794                       "DEBUG[load_index]: unique_subject = \"%s\"\n", p);
1795#endif
1796            retdb->attributes.unique_subject = parse_yesno(p, 1);
1797        }
1798    }
1799
1800 err:
1801    if (dbattr_conf)
1802        NCONF_free(dbattr_conf);
1803    if (tmpdb)
1804        TXT_DB_free(tmpdb);
1805    if (in)
1806        BIO_free_all(in);
1807    return retdb;
1808}
1809
1810int index_index(CA_DB *db)
1811{
1812    if (!TXT_DB_create_index(db->db, DB_serial, NULL,
1813                             LHASH_HASH_FN(index_serial),
1814                             LHASH_COMP_FN(index_serial))) {
1815        BIO_printf(bio_err,
1816                   "error creating serial number index:(%ld,%ld,%ld)\n",
1817                   db->db->error, db->db->arg1, db->db->arg2);
1818        return 0;
1819    }
1820
1821    if (db->attributes.unique_subject
1822        && !TXT_DB_create_index(db->db, DB_name, index_name_qual,
1823                                LHASH_HASH_FN(index_name),
1824                                LHASH_COMP_FN(index_name))) {
1825        BIO_printf(bio_err, "error creating name index:(%ld,%ld,%ld)\n",
1826                   db->db->error, db->db->arg1, db->db->arg2);
1827        return 0;
1828    }
1829    return 1;
1830}
1831
1832int save_index(const char *dbfile, const char *suffix, CA_DB *db)
1833{
1834    char buf[3][BSIZE];
1835    BIO *out = BIO_new(BIO_s_file());
1836    int j;
1837
1838    if (out == NULL) {
1839        ERR_print_errors(bio_err);
1840        goto err;
1841    }
1842
1843    j = strlen(dbfile) + strlen(suffix);
1844    if (j + 6 >= BSIZE) {
1845        BIO_printf(bio_err, "file name too long\n");
1846        goto err;
1847    }
1848#ifndef OPENSSL_SYS_VMS
1849    j = BIO_snprintf(buf[2], sizeof buf[2], "%s.attr", dbfile);
1850#else
1851    j = BIO_snprintf(buf[2], sizeof buf[2], "%s-attr", dbfile);
1852#endif
1853#ifndef OPENSSL_SYS_VMS
1854    j = BIO_snprintf(buf[1], sizeof buf[1], "%s.attr.%s", dbfile, suffix);
1855#else
1856    j = BIO_snprintf(buf[1], sizeof buf[1], "%s-attr-%s", dbfile, suffix);
1857#endif
1858#ifndef OPENSSL_SYS_VMS
1859    j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s", dbfile, suffix);
1860#else
1861    j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s", dbfile, suffix);
1862#endif
1863#ifdef RL_DEBUG
1864    BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[0]);
1865#endif
1866    if (BIO_write_filename(out, buf[0]) <= 0) {
1867        perror(dbfile);
1868        BIO_printf(bio_err, "unable to open '%s'\n", dbfile);
1869        goto err;
1870    }
1871    j = TXT_DB_write(out, db->db);
1872    if (j <= 0)
1873        goto err;
1874
1875    BIO_free(out);
1876
1877    out = BIO_new(BIO_s_file());
1878#ifdef RL_DEBUG
1879    BIO_printf(bio_err, "DEBUG: writing \"%s\"\n", buf[1]);
1880#endif
1881    if (BIO_write_filename(out, buf[1]) <= 0) {
1882        perror(buf[2]);
1883        BIO_printf(bio_err, "unable to open '%s'\n", buf[2]);
1884        goto err;
1885    }
1886    BIO_printf(out, "unique_subject = %s\n",
1887               db->attributes.unique_subject ? "yes" : "no");
1888    BIO_free(out);
1889
1890    return 1;
1891 err:
1892    return 0;
1893}
1894
1895int rotate_index(const char *dbfile, const char *new_suffix,
1896                 const char *old_suffix)
1897{
1898    char buf[5][BSIZE];
1899    int i, j;
1900
1901    i = strlen(dbfile) + strlen(old_suffix);
1902    j = strlen(dbfile) + strlen(new_suffix);
1903    if (i > j)
1904        j = i;
1905    if (j + 6 >= BSIZE) {
1906        BIO_printf(bio_err, "file name too long\n");
1907        goto err;
1908    }
1909#ifndef OPENSSL_SYS_VMS
1910    j = BIO_snprintf(buf[4], sizeof buf[4], "%s.attr", dbfile);
1911#else
1912    j = BIO_snprintf(buf[4], sizeof buf[4], "%s-attr", dbfile);
1913#endif
1914#ifndef OPENSSL_SYS_VMS
1915    j = BIO_snprintf(buf[2], sizeof buf[2], "%s.attr.%s", dbfile, new_suffix);
1916#else
1917    j = BIO_snprintf(buf[2], sizeof buf[2], "%s-attr-%s", dbfile, new_suffix);
1918#endif
1919#ifndef OPENSSL_SYS_VMS
1920    j = BIO_snprintf(buf[0], sizeof buf[0], "%s.%s", dbfile, new_suffix);
1921#else
1922    j = BIO_snprintf(buf[0], sizeof buf[0], "%s-%s", dbfile, new_suffix);
1923#endif
1924#ifndef OPENSSL_SYS_VMS
1925    j = BIO_snprintf(buf[1], sizeof buf[1], "%s.%s", dbfile, old_suffix);
1926#else
1927    j = BIO_snprintf(buf[1], sizeof buf[1], "%s-%s", dbfile, old_suffix);
1928#endif
1929#ifndef OPENSSL_SYS_VMS
1930    j = BIO_snprintf(buf[3], sizeof buf[3], "%s.attr.%s", dbfile, old_suffix);
1931#else
1932    j = BIO_snprintf(buf[3], sizeof buf[3], "%s-attr-%s", dbfile, old_suffix);
1933#endif
1934#ifdef RL_DEBUG
1935    BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n", dbfile, buf[1]);
1936#endif
1937    if (rename(dbfile, buf[1]) < 0 && errno != ENOENT
1938#ifdef ENOTDIR
1939        && errno != ENOTDIR
1940#endif
1941        ) {
1942        BIO_printf(bio_err, "unable to rename %s to %s\n", dbfile, buf[1]);
1943        perror("reason");
1944        goto err;
1945    }
1946#ifdef RL_DEBUG
1947    BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n", buf[0], dbfile);
1948#endif
1949    if (rename(buf[0], dbfile) < 0) {
1950        BIO_printf(bio_err, "unable to rename %s to %s\n", buf[0], dbfile);
1951        perror("reason");
1952        rename(buf[1], dbfile);
1953        goto err;
1954    }
1955#ifdef RL_DEBUG
1956    BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n", buf[4], buf[3]);
1957#endif
1958    if (rename(buf[4], buf[3]) < 0 && errno != ENOENT
1959#ifdef ENOTDIR
1960        && errno != ENOTDIR
1961#endif
1962        ) {
1963        BIO_printf(bio_err, "unable to rename %s to %s\n", buf[4], buf[3]);
1964        perror("reason");
1965        rename(dbfile, buf[0]);
1966        rename(buf[1], dbfile);
1967        goto err;
1968    }
1969#ifdef RL_DEBUG
1970    BIO_printf(bio_err, "DEBUG: renaming \"%s\" to \"%s\"\n", buf[2], buf[4]);
1971#endif
1972    if (rename(buf[2], buf[4]) < 0) {
1973        BIO_printf(bio_err, "unable to rename %s to %s\n", buf[2], buf[4]);
1974        perror("reason");
1975        rename(buf[3], buf[4]);
1976        rename(dbfile, buf[0]);
1977        rename(buf[1], dbfile);
1978        goto err;
1979    }
1980    return 1;
1981 err:
1982    return 0;
1983}
1984
1985void free_index(CA_DB *db)
1986{
1987    if (db) {
1988        if (db->db)
1989            TXT_DB_free(db->db);
1990        OPENSSL_free(db);
1991    }
1992}
1993
1994int parse_yesno(const char *str, int def)
1995{
1996    int ret = def;
1997    if (str) {
1998        switch (*str) {
1999        case 'f':              /* false */
2000        case 'F':              /* FALSE */
2001        case 'n':              /* no */
2002        case 'N':              /* NO */
2003        case '0':              /* 0 */
2004            ret = 0;
2005            break;
2006        case 't':              /* true */
2007        case 'T':              /* TRUE */
2008        case 'y':              /* yes */
2009        case 'Y':              /* YES */
2010        case '1':              /* 1 */
2011            ret = 1;
2012            break;
2013        default:
2014            ret = def;
2015            break;
2016        }
2017    }
2018    return ret;
2019}
2020
2021/*
2022 * subject is expected to be in the format /type0=value0/type1=value1/type2=...
2023 * where characters may be escaped by \
2024 */
2025X509_NAME *parse_name(char *subject, long chtype, int multirdn)
2026{
2027    size_t buflen = strlen(subject) + 1; /* to copy the types and values
2028                                          * into. due to escaping, the copy
2029                                          * can only become shorter */
2030    char *buf = OPENSSL_malloc(buflen);
2031    size_t max_ne = buflen / 2 + 1; /* maximum number of name elements */
2032    char **ne_types = OPENSSL_malloc(max_ne * sizeof(char *));
2033    char **ne_values = OPENSSL_malloc(max_ne * sizeof(char *));
2034    int *mval = OPENSSL_malloc(max_ne * sizeof(int));
2035
2036    char *sp = subject, *bp = buf;
2037    int i, ne_num = 0;
2038
2039    X509_NAME *n = NULL;
2040    int nid;
2041
2042    if (!buf || !ne_types || !ne_values || !mval) {
2043        BIO_printf(bio_err, "malloc error\n");
2044        goto error;
2045    }
2046
2047    if (*subject != '/') {
2048        BIO_printf(bio_err, "Subject does not start with '/'.\n");
2049        goto error;
2050    }
2051    sp++;                       /* skip leading / */
2052
2053    /* no multivalued RDN by default */
2054    mval[ne_num] = 0;
2055
2056    while (*sp) {
2057        /* collect type */
2058        ne_types[ne_num] = bp;
2059        while (*sp) {
2060            if (*sp == '\\') {  /* is there anything to escape in the
2061                                 * type...? */
2062                if (*++sp)
2063                    *bp++ = *sp++;
2064                else {
2065                    BIO_printf(bio_err,
2066                               "escape character at end of string\n");
2067                    goto error;
2068                }
2069            } else if (*sp == '=') {
2070                sp++;
2071                *bp++ = '\0';
2072                break;
2073            } else
2074                *bp++ = *sp++;
2075        }
2076        if (!*sp) {
2077            BIO_printf(bio_err,
2078                       "end of string encountered while processing type of subject name element #%d\n",
2079                       ne_num);
2080            goto error;
2081        }
2082        ne_values[ne_num] = bp;
2083        while (*sp) {
2084            if (*sp == '\\') {
2085                if (*++sp)
2086                    *bp++ = *sp++;
2087                else {
2088                    BIO_printf(bio_err,
2089                               "escape character at end of string\n");
2090                    goto error;
2091                }
2092            } else if (*sp == '/') {
2093                sp++;
2094                /* no multivalued RDN by default */
2095                mval[ne_num + 1] = 0;
2096                break;
2097            } else if (*sp == '+' && multirdn) {
2098                /*
2099                 * a not escaped + signals a mutlivalued RDN
2100                 */
2101                sp++;
2102                mval[ne_num + 1] = -1;
2103                break;
2104            } else
2105                *bp++ = *sp++;
2106        }
2107        *bp++ = '\0';
2108        ne_num++;
2109    }
2110
2111    if (!(n = X509_NAME_new()))
2112        goto error;
2113
2114    for (i = 0; i < ne_num; i++) {
2115        if ((nid = OBJ_txt2nid(ne_types[i])) == NID_undef) {
2116            BIO_printf(bio_err,
2117                       "Subject Attribute %s has no known NID, skipped\n",
2118                       ne_types[i]);
2119            continue;
2120        }
2121
2122        if (!*ne_values[i]) {
2123            BIO_printf(bio_err,
2124                       "No value provided for Subject Attribute %s, skipped\n",
2125                       ne_types[i]);
2126            continue;
2127        }
2128
2129        if (!X509_NAME_add_entry_by_NID
2130            (n, nid, chtype, (unsigned char *)ne_values[i], -1, -1, mval[i]))
2131            goto error;
2132    }
2133
2134    OPENSSL_free(ne_values);
2135    OPENSSL_free(ne_types);
2136    OPENSSL_free(buf);
2137    OPENSSL_free(mval);
2138    return n;
2139
2140 error:
2141    X509_NAME_free(n);
2142    if (ne_values)
2143        OPENSSL_free(ne_values);
2144    if (ne_types)
2145        OPENSSL_free(ne_types);
2146    if (mval)
2147        OPENSSL_free(mval);
2148    if (buf)
2149        OPENSSL_free(buf);
2150    return NULL;
2151}
2152
2153int args_verify(char ***pargs, int *pargc,
2154                int *badarg, BIO *err, X509_VERIFY_PARAM **pm)
2155{
2156    ASN1_OBJECT *otmp = NULL;
2157    unsigned long flags = 0;
2158    int i;
2159    int purpose = 0, depth = -1;
2160    char **oldargs = *pargs;
2161    char *arg = **pargs, *argn = (*pargs)[1];
2162    time_t at_time = 0;
2163    if (!strcmp(arg, "-policy")) {
2164        if (!argn)
2165            *badarg = 1;
2166        else {
2167            otmp = OBJ_txt2obj(argn, 0);
2168            if (!otmp) {
2169                BIO_printf(err, "Invalid Policy \"%s\"\n", argn);
2170                *badarg = 1;
2171            }
2172        }
2173        (*pargs)++;
2174    } else if (strcmp(arg, "-purpose") == 0) {
2175        X509_PURPOSE *xptmp;
2176        if (!argn)
2177            *badarg = 1;
2178        else {
2179            i = X509_PURPOSE_get_by_sname(argn);
2180            if (i < 0) {
2181                BIO_printf(err, "unrecognized purpose\n");
2182                *badarg = 1;
2183            } else {
2184                xptmp = X509_PURPOSE_get0(i);
2185                purpose = X509_PURPOSE_get_id(xptmp);
2186            }
2187        }
2188        (*pargs)++;
2189    } else if (strcmp(arg, "-verify_depth") == 0) {
2190        if (!argn)
2191            *badarg = 1;
2192        else {
2193            depth = atoi(argn);
2194            if (depth < 0) {
2195                BIO_printf(err, "invalid depth\n");
2196                *badarg = 1;
2197            }
2198        }
2199        (*pargs)++;
2200    } else if (strcmp(arg, "-attime") == 0) {
2201        if (!argn)
2202            *badarg = 1;
2203        else {
2204            long timestamp;
2205            /*
2206             * interpret the -attime argument as seconds since Epoch
2207             */
2208            if (sscanf(argn, "%li", &timestamp) != 1) {
2209                BIO_printf(bio_err, "Error parsing timestamp %s\n", argn);
2210                *badarg = 1;
2211            }
2212            /* on some platforms time_t may be a float */
2213            at_time = (time_t)timestamp;
2214        }
2215        (*pargs)++;
2216    } else if (!strcmp(arg, "-ignore_critical"))
2217        flags |= X509_V_FLAG_IGNORE_CRITICAL;
2218    else if (!strcmp(arg, "-issuer_checks"))
2219        flags |= X509_V_FLAG_CB_ISSUER_CHECK;
2220    else if (!strcmp(arg, "-crl_check"))
2221        flags |= X509_V_FLAG_CRL_CHECK;
2222    else if (!strcmp(arg, "-crl_check_all"))
2223        flags |= X509_V_FLAG_CRL_CHECK | X509_V_FLAG_CRL_CHECK_ALL;
2224    else if (!strcmp(arg, "-policy_check"))
2225        flags |= X509_V_FLAG_POLICY_CHECK;
2226    else if (!strcmp(arg, "-explicit_policy"))
2227        flags |= X509_V_FLAG_EXPLICIT_POLICY;
2228    else if (!strcmp(arg, "-inhibit_any"))
2229        flags |= X509_V_FLAG_INHIBIT_ANY;
2230    else if (!strcmp(arg, "-inhibit_map"))
2231        flags |= X509_V_FLAG_INHIBIT_MAP;
2232    else if (!strcmp(arg, "-x509_strict"))
2233        flags |= X509_V_FLAG_X509_STRICT;
2234    else if (!strcmp(arg, "-extended_crl"))
2235        flags |= X509_V_FLAG_EXTENDED_CRL_SUPPORT;
2236    else if (!strcmp(arg, "-use_deltas"))
2237        flags |= X509_V_FLAG_USE_DELTAS;
2238    else if (!strcmp(arg, "-policy_print"))
2239        flags |= X509_V_FLAG_NOTIFY_POLICY;
2240    else if (!strcmp(arg, "-check_ss_sig"))
2241        flags |= X509_V_FLAG_CHECK_SS_SIGNATURE;
2242    else if (!strcmp(arg, "-no_alt_chains"))
2243        flags |= X509_V_FLAG_NO_ALT_CHAINS;
2244    else if (!strcmp(arg, "-allow_proxy_certs"))
2245        flags |= X509_V_FLAG_ALLOW_PROXY_CERTS;
2246    else
2247        return 0;
2248
2249    if (*badarg) {
2250        if (*pm)
2251            X509_VERIFY_PARAM_free(*pm);
2252        *pm = NULL;
2253        goto end;
2254    }
2255
2256    if (!*pm && !(*pm = X509_VERIFY_PARAM_new())) {
2257        *badarg = 1;
2258        goto end;
2259    }
2260
2261    if (otmp)
2262        X509_VERIFY_PARAM_add0_policy(*pm, otmp);
2263    if (flags)
2264        X509_VERIFY_PARAM_set_flags(*pm, flags);
2265
2266    if (purpose)
2267        X509_VERIFY_PARAM_set_purpose(*pm, purpose);
2268
2269    if (depth >= 0)
2270        X509_VERIFY_PARAM_set_depth(*pm, depth);
2271
2272    if (at_time)
2273        X509_VERIFY_PARAM_set_time(*pm, at_time);
2274
2275 end:
2276
2277    (*pargs)++;
2278
2279    if (pargc)
2280        *pargc -= *pargs - oldargs;
2281
2282    return 1;
2283
2284}
2285
2286/*
2287 * Read whole contents of a BIO into an allocated memory buffer and return
2288 * it.
2289 */
2290
2291int bio_to_mem(unsigned char **out, int maxlen, BIO *in)
2292{
2293    BIO *mem;
2294    int len, ret;
2295    unsigned char tbuf[1024];
2296    mem = BIO_new(BIO_s_mem());
2297    if (!mem)
2298        return -1;
2299    for (;;) {
2300        if ((maxlen != -1) && maxlen < 1024)
2301            len = maxlen;
2302        else
2303            len = 1024;
2304        len = BIO_read(in, tbuf, len);
2305        if (len <= 0)
2306            break;
2307        if (BIO_write(mem, tbuf, len) != len) {
2308            BIO_free(mem);
2309            return -1;
2310        }
2311        maxlen -= len;
2312
2313        if (maxlen == 0)
2314            break;
2315    }
2316    ret = BIO_get_mem_data(mem, (char **)out);
2317    BIO_set_flags(mem, BIO_FLAGS_MEM_RDONLY);
2318    BIO_free(mem);
2319    return ret;
2320}
2321
2322int pkey_ctrl_string(EVP_PKEY_CTX *ctx, char *value)
2323{
2324    int rv;
2325    char *stmp, *vtmp = NULL;
2326    stmp = BUF_strdup(value);
2327    if (!stmp)
2328        return -1;
2329    vtmp = strchr(stmp, ':');
2330    if (vtmp) {
2331        *vtmp = 0;
2332        vtmp++;
2333    }
2334    rv = EVP_PKEY_CTX_ctrl_str(ctx, stmp, vtmp);
2335    OPENSSL_free(stmp);
2336    return rv;
2337}
2338
2339static void nodes_print(BIO *out, const char *name,
2340                        STACK_OF(X509_POLICY_NODE) *nodes)
2341{
2342    X509_POLICY_NODE *node;
2343    int i;
2344    BIO_printf(out, "%s Policies:", name);
2345    if (nodes) {
2346        BIO_puts(out, "\n");
2347        for (i = 0; i < sk_X509_POLICY_NODE_num(nodes); i++) {
2348            node = sk_X509_POLICY_NODE_value(nodes, i);
2349            X509_POLICY_NODE_print(out, node, 2);
2350        }
2351    } else
2352        BIO_puts(out, " <empty>\n");
2353}
2354
2355void policies_print(BIO *out, X509_STORE_CTX *ctx)
2356{
2357    X509_POLICY_TREE *tree;
2358    int explicit_policy;
2359    int free_out = 0;
2360    if (out == NULL) {
2361        out = BIO_new_fp(stderr, BIO_NOCLOSE);
2362        free_out = 1;
2363    }
2364    tree = X509_STORE_CTX_get0_policy_tree(ctx);
2365    explicit_policy = X509_STORE_CTX_get_explicit_policy(ctx);
2366
2367    BIO_printf(out, "Require explicit Policy: %s\n",
2368               explicit_policy ? "True" : "False");
2369
2370    nodes_print(out, "Authority", X509_policy_tree_get0_policies(tree));
2371    nodes_print(out, "User", X509_policy_tree_get0_user_policies(tree));
2372    if (free_out)
2373        BIO_free(out);
2374}
2375
2376#if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
2377
2378static JPAKE_CTX *jpake_init(const char *us, const char *them,
2379                             const char *secret)
2380{
2381    BIGNUM *p = NULL;
2382    BIGNUM *g = NULL;
2383    BIGNUM *q = NULL;
2384    BIGNUM *bnsecret = BN_new();
2385    JPAKE_CTX *ctx;
2386
2387    /* Use a safe prime for p (that we found earlier) */
2388    BN_hex2bn(&p,
2389              "F9E5B365665EA7A05A9C534502780FEE6F1AB5BD4F49947FD036DBD7E905269AF46EF28B0FC07487EE4F5D20FB3C0AF8E700F3A2FA3414970CBED44FEDFF80CE78D800F184BB82435D137AADA2C6C16523247930A63B85661D1FC817A51ACD96168E95898A1F83A79FFB529368AA7833ABD1B0C3AEDDB14D2E1A2F71D99F763F");
2390    g = BN_new();
2391    BN_set_word(g, 2);
2392    q = BN_new();
2393    BN_rshift1(q, p);
2394
2395    BN_bin2bn((const unsigned char *)secret, strlen(secret), bnsecret);
2396
2397    ctx = JPAKE_CTX_new(us, them, p, g, q, bnsecret);
2398    BN_free(bnsecret);
2399    BN_free(q);
2400    BN_free(g);
2401    BN_free(p);
2402
2403    return ctx;
2404}
2405
2406static void jpake_send_part(BIO *conn, const JPAKE_STEP_PART *p)
2407{
2408    BN_print(conn, p->gx);
2409    BIO_puts(conn, "\n");
2410    BN_print(conn, p->zkpx.gr);
2411    BIO_puts(conn, "\n");
2412    BN_print(conn, p->zkpx.b);
2413    BIO_puts(conn, "\n");
2414}
2415
2416static void jpake_send_step1(BIO *bconn, JPAKE_CTX *ctx)
2417{
2418    JPAKE_STEP1 s1;
2419
2420    JPAKE_STEP1_init(&s1);
2421    JPAKE_STEP1_generate(&s1, ctx);
2422    jpake_send_part(bconn, &s1.p1);
2423    jpake_send_part(bconn, &s1.p2);
2424    (void)BIO_flush(bconn);
2425    JPAKE_STEP1_release(&s1);
2426}
2427
2428static void jpake_send_step2(BIO *bconn, JPAKE_CTX *ctx)
2429{
2430    JPAKE_STEP2 s2;
2431
2432    JPAKE_STEP2_init(&s2);
2433    JPAKE_STEP2_generate(&s2, ctx);
2434    jpake_send_part(bconn, &s2);
2435    (void)BIO_flush(bconn);
2436    JPAKE_STEP2_release(&s2);
2437}
2438
2439static void jpake_send_step3a(BIO *bconn, JPAKE_CTX *ctx)
2440{
2441    JPAKE_STEP3A s3a;
2442
2443    JPAKE_STEP3A_init(&s3a);
2444    JPAKE_STEP3A_generate(&s3a, ctx);
2445    BIO_write(bconn, s3a.hhk, sizeof s3a.hhk);
2446    (void)BIO_flush(bconn);
2447    JPAKE_STEP3A_release(&s3a);
2448}
2449
2450static void jpake_send_step3b(BIO *bconn, JPAKE_CTX *ctx)
2451{
2452    JPAKE_STEP3B s3b;
2453
2454    JPAKE_STEP3B_init(&s3b);
2455    JPAKE_STEP3B_generate(&s3b, ctx);
2456    BIO_write(bconn, s3b.hk, sizeof s3b.hk);
2457    (void)BIO_flush(bconn);
2458    JPAKE_STEP3B_release(&s3b);
2459}
2460
2461static void readbn(BIGNUM **bn, BIO *bconn)
2462{
2463    char buf[10240];
2464    int l;
2465
2466    l = BIO_gets(bconn, buf, sizeof buf);
2467    assert(l > 0);
2468    assert(buf[l - 1] == '\n');
2469    buf[l - 1] = '\0';
2470    BN_hex2bn(bn, buf);
2471}
2472
2473static void jpake_receive_part(JPAKE_STEP_PART *p, BIO *bconn)
2474{
2475    readbn(&p->gx, bconn);
2476    readbn(&p->zkpx.gr, bconn);
2477    readbn(&p->zkpx.b, bconn);
2478}
2479
2480static void jpake_receive_step1(JPAKE_CTX *ctx, BIO *bconn)
2481{
2482    JPAKE_STEP1 s1;
2483
2484    JPAKE_STEP1_init(&s1);
2485    jpake_receive_part(&s1.p1, bconn);
2486    jpake_receive_part(&s1.p2, bconn);
2487    if (!JPAKE_STEP1_process(ctx, &s1)) {
2488        ERR_print_errors(bio_err);
2489        exit(1);
2490    }
2491    JPAKE_STEP1_release(&s1);
2492}
2493
2494static void jpake_receive_step2(JPAKE_CTX *ctx, BIO *bconn)
2495{
2496    JPAKE_STEP2 s2;
2497
2498    JPAKE_STEP2_init(&s2);
2499    jpake_receive_part(&s2, bconn);
2500    if (!JPAKE_STEP2_process(ctx, &s2)) {
2501        ERR_print_errors(bio_err);
2502        exit(1);
2503    }
2504    JPAKE_STEP2_release(&s2);
2505}
2506
2507static void jpake_receive_step3a(JPAKE_CTX *ctx, BIO *bconn)
2508{
2509    JPAKE_STEP3A s3a;
2510    int l;
2511
2512    JPAKE_STEP3A_init(&s3a);
2513    l = BIO_read(bconn, s3a.hhk, sizeof s3a.hhk);
2514    assert(l == sizeof s3a.hhk);
2515    if (!JPAKE_STEP3A_process(ctx, &s3a)) {
2516        ERR_print_errors(bio_err);
2517        exit(1);
2518    }
2519    JPAKE_STEP3A_release(&s3a);
2520}
2521
2522static void jpake_receive_step3b(JPAKE_CTX *ctx, BIO *bconn)
2523{
2524    JPAKE_STEP3B s3b;
2525    int l;
2526
2527    JPAKE_STEP3B_init(&s3b);
2528    l = BIO_read(bconn, s3b.hk, sizeof s3b.hk);
2529    assert(l == sizeof s3b.hk);
2530    if (!JPAKE_STEP3B_process(ctx, &s3b)) {
2531        ERR_print_errors(bio_err);
2532        exit(1);
2533    }
2534    JPAKE_STEP3B_release(&s3b);
2535}
2536
2537void jpake_client_auth(BIO *out, BIO *conn, const char *secret)
2538{
2539    JPAKE_CTX *ctx;
2540    BIO *bconn;
2541
2542    BIO_puts(out, "Authenticating with JPAKE\n");
2543
2544    ctx = jpake_init("client", "server", secret);
2545
2546    bconn = BIO_new(BIO_f_buffer());
2547    BIO_push(bconn, conn);
2548
2549    jpake_send_step1(bconn, ctx);
2550    jpake_receive_step1(ctx, bconn);
2551    jpake_send_step2(bconn, ctx);
2552    jpake_receive_step2(ctx, bconn);
2553    jpake_send_step3a(bconn, ctx);
2554    jpake_receive_step3b(ctx, bconn);
2555
2556    BIO_puts(out, "JPAKE authentication succeeded, setting PSK\n");
2557
2558    psk_key = BN_bn2hex(JPAKE_get_shared_key(ctx));
2559
2560    BIO_pop(bconn);
2561    BIO_free(bconn);
2562
2563    JPAKE_CTX_free(ctx);
2564}
2565
2566void jpake_server_auth(BIO *out, BIO *conn, const char *secret)
2567{
2568    JPAKE_CTX *ctx;
2569    BIO *bconn;
2570
2571    BIO_puts(out, "Authenticating with JPAKE\n");
2572
2573    ctx = jpake_init("server", "client", secret);
2574
2575    bconn = BIO_new(BIO_f_buffer());
2576    BIO_push(bconn, conn);
2577
2578    jpake_receive_step1(ctx, bconn);
2579    jpake_send_step1(bconn, ctx);
2580    jpake_receive_step2(ctx, bconn);
2581    jpake_send_step2(bconn, ctx);
2582    jpake_receive_step3a(ctx, bconn);
2583    jpake_send_step3b(bconn, ctx);
2584
2585    BIO_puts(out, "JPAKE authentication succeeded, setting PSK\n");
2586
2587    psk_key = BN_bn2hex(JPAKE_get_shared_key(ctx));
2588
2589    BIO_pop(bconn);
2590    BIO_free(bconn);
2591
2592    JPAKE_CTX_free(ctx);
2593}
2594
2595#endif
2596
2597#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2598/*-
2599 * next_protos_parse parses a comma separated list of strings into a string
2600 * in a format suitable for passing to SSL_CTX_set_next_protos_advertised.
2601 *   outlen: (output) set to the length of the resulting buffer on success.
2602 *   err: (maybe NULL) on failure, an error message line is written to this BIO.
2603 *   in: a NUL termianted string like "abc,def,ghi"
2604 *
2605 *   returns: a malloced buffer or NULL on failure.
2606 */
2607unsigned char *next_protos_parse(unsigned short *outlen, const char *in)
2608{
2609    size_t len;
2610    unsigned char *out;
2611    size_t i, start = 0;
2612
2613    len = strlen(in);
2614    if (len >= 65535)
2615        return NULL;
2616
2617    out = OPENSSL_malloc(strlen(in) + 1);
2618    if (!out)
2619        return NULL;
2620
2621    for (i = 0; i <= len; ++i) {
2622        if (i == len || in[i] == ',') {
2623            if (i - start > 255) {
2624                OPENSSL_free(out);
2625                return NULL;
2626            }
2627            out[start] = i - start;
2628            start = i + 1;
2629        } else
2630            out[i + 1] = in[i];
2631    }
2632
2633    *outlen = len + 1;
2634    return out;
2635}
2636#endif                          /* !OPENSSL_NO_TLSEXT &&
2637                                 * !OPENSSL_NO_NEXTPROTONEG */
2638
2639/*
2640 * Platform-specific sections
2641 */
2642#if defined(_WIN32)
2643# ifdef fileno
2644#  undef fileno
2645#  define fileno(a) (int)_fileno(a)
2646# endif
2647
2648# include <windows.h>
2649# include <tchar.h>
2650
2651static int WIN32_rename(const char *from, const char *to)
2652{
2653    TCHAR *tfrom = NULL, *tto;
2654    DWORD err;
2655    int ret = 0;
2656
2657    if (sizeof(TCHAR) == 1) {
2658        tfrom = (TCHAR *)from;
2659        tto = (TCHAR *)to;
2660    } else {                    /* UNICODE path */
2661
2662        size_t i, flen = strlen(from) + 1, tlen = strlen(to) + 1;
2663        tfrom = (TCHAR *)malloc(sizeof(TCHAR) * (flen + tlen));
2664        if (tfrom == NULL)
2665            goto err;
2666        tto = tfrom + flen;
2667# if !defined(_WIN32_WCE) || _WIN32_WCE>=101
2668        if (!MultiByteToWideChar(CP_ACP, 0, from, flen, (WCHAR *)tfrom, flen))
2669# endif
2670            for (i = 0; i < flen; i++)
2671                tfrom[i] = (TCHAR)from[i];
2672# if !defined(_WIN32_WCE) || _WIN32_WCE>=101
2673        if (!MultiByteToWideChar(CP_ACP, 0, to, tlen, (WCHAR *)tto, tlen))
2674# endif
2675            for (i = 0; i < tlen; i++)
2676                tto[i] = (TCHAR)to[i];
2677    }
2678
2679    if (MoveFile(tfrom, tto))
2680        goto ok;
2681    err = GetLastError();
2682    if (err == ERROR_ALREADY_EXISTS || err == ERROR_FILE_EXISTS) {
2683        if (DeleteFile(tto) && MoveFile(tfrom, tto))
2684            goto ok;
2685        err = GetLastError();
2686    }
2687    if (err == ERROR_FILE_NOT_FOUND || err == ERROR_PATH_NOT_FOUND)
2688        errno = ENOENT;
2689    else if (err == ERROR_ACCESS_DENIED)
2690        errno = EACCES;
2691    else
2692        errno = EINVAL;         /* we could map more codes... */
2693 err:
2694    ret = -1;
2695 ok:
2696    if (tfrom != NULL && tfrom != (TCHAR *)from)
2697        free(tfrom);
2698    return ret;
2699}
2700#endif
2701
2702/* app_tminterval section */
2703#if defined(_WIN32)
2704double app_tminterval(int stop, int usertime)
2705{
2706    FILETIME now;
2707    double ret = 0;
2708    static ULARGE_INTEGER tmstart;
2709    static int warning = 1;
2710# ifdef _WIN32_WINNT
2711    static HANDLE proc = NULL;
2712
2713    if (proc == NULL) {
2714        if (check_winnt())
2715            proc = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE,
2716                               GetCurrentProcessId());
2717        if (proc == NULL)
2718            proc = (HANDLE) - 1;
2719    }
2720
2721    if (usertime && proc != (HANDLE) - 1) {
2722        FILETIME junk;
2723        GetProcessTimes(proc, &junk, &junk, &junk, &now);
2724    } else
2725# endif
2726    {
2727        SYSTEMTIME systime;
2728
2729        if (usertime && warning) {
2730            BIO_printf(bio_err, "To get meaningful results, run "
2731                       "this program on idle system.\n");
2732            warning = 0;
2733        }
2734        GetSystemTime(&systime);
2735        SystemTimeToFileTime(&systime, &now);
2736    }
2737
2738    if (stop == TM_START) {
2739        tmstart.u.LowPart = now.dwLowDateTime;
2740        tmstart.u.HighPart = now.dwHighDateTime;
2741    } else {
2742        ULARGE_INTEGER tmstop;
2743
2744        tmstop.u.LowPart = now.dwLowDateTime;
2745        tmstop.u.HighPart = now.dwHighDateTime;
2746
2747        ret = (__int64)(tmstop.QuadPart - tmstart.QuadPart) * 1e-7;
2748    }
2749
2750    return (ret);
2751}
2752
2753#elif defined(OPENSSL_SYS_NETWARE)
2754# include <time.h>
2755
2756double app_tminterval(int stop, int usertime)
2757{
2758    double ret = 0;
2759    static clock_t tmstart;
2760    static int warning = 1;
2761
2762    if (usertime && warning) {
2763        BIO_printf(bio_err, "To get meaningful results, run "
2764                   "this program on idle system.\n");
2765        warning = 0;
2766    }
2767
2768    if (stop == TM_START)
2769        tmstart = clock();
2770    else
2771        ret = (clock() - tmstart) / (double)CLOCKS_PER_SEC;
2772
2773    return (ret);
2774}
2775
2776#elif defined(OPENSSL_SYSTEM_VXWORKS)
2777# include <time.h>
2778
2779double app_tminterval(int stop, int usertime)
2780{
2781    double ret = 0;
2782# ifdef CLOCK_REALTIME
2783    static struct timespec tmstart;
2784    struct timespec now;
2785# else
2786    static unsigned long tmstart;
2787    unsigned long now;
2788# endif
2789    static int warning = 1;
2790
2791    if (usertime && warning) {
2792        BIO_printf(bio_err, "To get meaningful results, run "
2793                   "this program on idle system.\n");
2794        warning = 0;
2795    }
2796# ifdef CLOCK_REALTIME
2797    clock_gettime(CLOCK_REALTIME, &now);
2798    if (stop == TM_START)
2799        tmstart = now;
2800    else
2801        ret = ((now.tv_sec + now.tv_nsec * 1e-9)
2802               - (tmstart.tv_sec + tmstart.tv_nsec * 1e-9));
2803# else
2804    now = tickGet();
2805    if (stop == TM_START)
2806        tmstart = now;
2807    else
2808        ret = (now - tmstart) / (double)sysClkRateGet();
2809# endif
2810    return (ret);
2811}
2812
2813#elif defined(OPENSSL_SYSTEM_VMS)
2814# include <time.h>
2815# include <times.h>
2816
2817double app_tminterval(int stop, int usertime)
2818{
2819    static clock_t tmstart;
2820    double ret = 0;
2821    clock_t now;
2822# ifdef __TMS
2823    struct tms rus;
2824
2825    now = times(&rus);
2826    if (usertime)
2827        now = rus.tms_utime;
2828# else
2829    if (usertime)
2830        now = clock();          /* sum of user and kernel times */
2831    else {
2832        struct timeval tv;
2833        gettimeofday(&tv, NULL);
2834        now = (clock_t)((unsigned long long)tv.tv_sec * CLK_TCK +
2835                        (unsigned long long)tv.tv_usec * (1000000 / CLK_TCK)
2836            );
2837    }
2838# endif
2839    if (stop == TM_START)
2840        tmstart = now;
2841    else
2842        ret = (now - tmstart) / (double)(CLK_TCK);
2843
2844    return (ret);
2845}
2846
2847#elif defined(_SC_CLK_TCK)      /* by means of unistd.h */
2848# include <sys/times.h>
2849
2850double app_tminterval(int stop, int usertime)
2851{
2852    double ret = 0;
2853    struct tms rus;
2854    clock_t now = times(&rus);
2855    static clock_t tmstart;
2856
2857    if (usertime)
2858        now = rus.tms_utime;
2859
2860    if (stop == TM_START)
2861        tmstart = now;
2862    else {
2863        long int tck = sysconf(_SC_CLK_TCK);
2864        ret = (now - tmstart) / (double)tck;
2865    }
2866
2867    return (ret);
2868}
2869
2870#else
2871# include <sys/time.h>
2872# include <sys/resource.h>
2873
2874double app_tminterval(int stop, int usertime)
2875{
2876    double ret = 0;
2877    struct rusage rus;
2878    struct timeval now;
2879    static struct timeval tmstart;
2880
2881    if (usertime)
2882        getrusage(RUSAGE_SELF, &rus), now = rus.ru_utime;
2883    else
2884        gettimeofday(&now, NULL);
2885
2886    if (stop == TM_START)
2887        tmstart = now;
2888    else
2889        ret = ((now.tv_sec + now.tv_usec * 1e-6)
2890               - (tmstart.tv_sec + tmstart.tv_usec * 1e-6));
2891
2892    return ret;
2893}
2894#endif
2895
2896/* app_isdir section */
2897#ifdef _WIN32
2898int app_isdir(const char *name)
2899{
2900    HANDLE hList;
2901    WIN32_FIND_DATA FileData;
2902# if defined(UNICODE) || defined(_UNICODE)
2903    size_t i, len_0 = strlen(name) + 1;
2904
2905    if (len_0 > sizeof(FileData.cFileName) / sizeof(FileData.cFileName[0]))
2906        return -1;
2907
2908#  if !defined(_WIN32_WCE) || _WIN32_WCE>=101
2909    if (!MultiByteToWideChar
2910        (CP_ACP, 0, name, len_0, FileData.cFileName, len_0))
2911#  endif
2912        for (i = 0; i < len_0; i++)
2913            FileData.cFileName[i] = (WCHAR)name[i];
2914
2915    hList = FindFirstFile(FileData.cFileName, &FileData);
2916# else
2917    hList = FindFirstFile(name, &FileData);
2918# endif
2919    if (hList == INVALID_HANDLE_VALUE)
2920        return -1;
2921    FindClose(hList);
2922    return ((FileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0);
2923}
2924#else
2925# include <sys/stat.h>
2926# ifndef S_ISDIR
2927#  if defined(_S_IFMT) && defined(_S_IFDIR)
2928#   define S_ISDIR(a)   (((a) & _S_IFMT) == _S_IFDIR)
2929#  else
2930#   define S_ISDIR(a)   (((a) & S_IFMT) == S_IFDIR)
2931#  endif
2932# endif
2933
2934int app_isdir(const char *name)
2935{
2936# if defined(S_ISDIR)
2937    struct stat st;
2938
2939    if (stat(name, &st) == 0)
2940        return S_ISDIR(st.st_mode);
2941    else
2942        return -1;
2943# else
2944    return -1;
2945# endif
2946}
2947#endif
2948
2949/* raw_read|write section */
2950#if defined(_WIN32) && defined(STD_INPUT_HANDLE)
2951int raw_read_stdin(void *buf, int siz)
2952{
2953    DWORD n;
2954    if (ReadFile(GetStdHandle(STD_INPUT_HANDLE), buf, siz, &n, NULL))
2955        return (n);
2956    else
2957        return (-1);
2958}
2959#else
2960int raw_read_stdin(void *buf, int siz)
2961{
2962    return read(fileno(stdin), buf, siz);
2963}
2964#endif
2965
2966#if defined(_WIN32) && defined(STD_OUTPUT_HANDLE)
2967int raw_write_stdout(const void *buf, int siz)
2968{
2969    DWORD n;
2970    if (WriteFile(GetStdHandle(STD_OUTPUT_HANDLE), buf, siz, &n, NULL))
2971        return (n);
2972    else
2973        return (-1);
2974}
2975#else
2976int raw_write_stdout(const void *buf, int siz)
2977{
2978    return write(fileno(stdout), buf, siz);
2979}
2980#endif
2981