apps/engine.c

   1 /* apps/engine.c -*- mode: C; c-file-style: "eay" -*- */
   2 /* Written by Richard Levitte <richard@levitte.org> for the OpenSSL
   3  * project 2000.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 2000 The OpenSSL Project.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in
  17  *    the documentation and/or other materials provided with the
  18  *    distribution.
  19  *
  20  * 3. All advertising materials mentioning features or use of this
  21  *    software must display the following acknowledgment:
  22  *    "This product includes software developed by the OpenSSL Project
  23  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  24  *
  25  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  26  *    endorse or promote products derived from this software without
  27  *    prior written permission. For written permission, please contact
  28  *    licensing@OpenSSL.org.
  29  *
  30  * 5. Products derived from this software may not be called "OpenSSL"
  31  *    nor may "OpenSSL" appear in their names without prior written
  32  *    permission of the OpenSSL Project.
  33  *
  34  * 6. Redistributions of any form whatsoever must retain the following
  35  *    acknowledgment:
  36  *    "This product includes software developed by the OpenSSL Project
  37  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  38  *
  39  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  40  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  41  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  42  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  43  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  44  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  45  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  46  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  48  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  49  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  50  * OF THE POSSIBILITY OF SUCH DAMAGE.
  51  * ====================================================================
  52  *
  53  * This product includes cryptographic software written by Eric Young
  54  * (eay@cryptsoft.com).  This product includes software written by Tim
  55  * Hudson (tjh@cryptsoft.com).
  56  *
  57  */
  58
  59 #include <stdio.h>
  60 #include <stdlib.h>
  61 #include <string.h>
  62 #ifdef OPENSSL_NO_STDIO
  63 #define APPS_WIN16
  64 #endif
  65 #include "apps.h"
  66 #include <openssl/err.h>
  67 #include <openssl/engine.h>
  68 #include <openssl/ssl.h>
  69
  70 #undef PROG
  71 #define PROG    engine_main
  72
  73 static char *engine_usage[]={
  74 "usage: engine opts [engine ...]\n",
  75 " -v          - verbose mode, a textual listing of the engines in OpenSSL\n",
  76 " -c          - for each engine, also list the capabilities\n",
  77 " -t          - for each engine, check that they are really available\n",
  78 NULL
  79 };
  80
  81 static void identity(void *ptr)
  82         {
  83         return;
  84         }
  85
  86 static int append_buf(char **buf, char *s, int *size, int step)
  87         {
  88         int l = strlen(s);
  89
  90         if (*buf == NULL)
  91                 {
  92                 *size = step;
  93                 *buf = OPENSSL_malloc(*size);
  94                 if (*buf == NULL)
  95                         return 0;
  96                 **buf = '\0';
  97                 }
  98
  99         if (**buf != '\0')
 100                 l += 2;         /* ", " */
 101
 102         if (strlen(*buf) + strlen(s) >= (unsigned int)*size)
 103                 {
 104                 *size += step;
 105                 *buf = OPENSSL_realloc(*buf, *size);
 106                 }
 107
 108         if (*buf == NULL)
 109                 return 0;
 110
 111         if (**buf != '\0')
 112                 strcat(*buf, ", ");
 113         strcat(*buf, s);
 114
 115         return 1;
 116         }
 117
 118 int MAIN(int, char **);
 119
 120 int MAIN(int argc, char **argv)
 121         {
 122         int ret=1,i;
 123         char **pp;
 124         int verbose=0, list_cap=0, test_avail=0;
 125         ENGINE *e;
 126         STACK *engines = sk_new_null();
 127         int badops=0;
 128         BIO *bio_out=NULL;
 129
 130         apps_startup();
 131         SSL_load_error_strings();
 132
 133         if (bio_err == NULL)
 134                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 135         bio_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 136 #ifdef VMS
 137         {
 138         BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 139         bio_out = BIO_push(tmpbio, bio_out);
 140         }
 141 #endif
 142
 143         argc--;
 144         argv++;
 145         while (argc >= 1)
 146                 {
 147                 if (strcmp(*argv,"-v") == 0)
 148                         verbose=1;
 149                 else if (strcmp(*argv,"-c") == 0)
 150                         list_cap=1;
 151                 else if (strcmp(*argv,"-t") == 0)
 152                         test_avail=1;
 153                 else if ((strncmp(*argv,"-h",2) == 0) ||
 154                          (strcmp(*argv,"-?") == 0))
 155                         {
 156                         badops=1;
 157                         break;
 158                         }
 159                 else
 160                         {
 161                         sk_push(engines,*argv);
 162                         }
 163                 argc--;
 164                 argv++;
 165                 }
 166
 167         if (badops)
 168                 {
 169                 for (pp=engine_usage; (*pp != NULL); pp++)
 170                         BIO_printf(bio_err,"%s",*pp);
 171                 goto end;
 172                 }
 173
 174         if (sk_num(engines) == 0)
 175                 {
 176                 for(e = ENGINE_get_first(); e != NULL; e = ENGINE_get_next(e))
 177                         {
 178                         sk_push(engines,(char *)ENGINE_get_id(e));
 179                         }
 180                 }
 181
 182         for (i=0; i<sk_num(engines); i++)
 183                 {
 184                 const char *id = sk_value(engines,i);
 185                 if ((e = ENGINE_by_id(id)) != NULL)
 186                         {
 187                         const char *name = ENGINE_get_name(e);
 188                         BIO_printf(bio_out, "%s (%s)", name, id);
 189                         if (list_cap || test_avail)
 190                                 BIO_printf(bio_out, ":");
 191                         if (test_avail)
 192                                 {
 193                                 if (ENGINE_init(e))
 194                                         {
 195                                         BIO_printf(bio_out, " available");
 196                                         ENGINE_finish(e);
 197                                         }
 198                                 else
 199                                         {
 200                                         BIO_printf(bio_out, " unavailable");
 201                                         ERR_clear_error();
 202                                         }
 203                                 }
 204                         if (list_cap)
 205                                 {
 206                                 int cap_size = 256;
 207                                 char *cap_buf = NULL;
 208
 209                                 if (ENGINE_get_RSA(e) != NULL
 210                                         && !append_buf(&cap_buf, "RSA",
 211                                                 &cap_size, 256))
 212                                         goto end;
 213                                 if (ENGINE_get_DSA(e) != NULL
 214                                         && !append_buf(&cap_buf, "DSA",
 215                                                 &cap_size, 256))
 216                                         goto end;
 217                                 if (ENGINE_get_DH(e) != NULL
 218                                         && !append_buf(&cap_buf, "DH",
 219                                                 &cap_size, 256))
 220                                         goto end;
 221                                 if (ENGINE_get_RAND(e) != NULL
 222                                         && !append_buf(&cap_buf, "RAND",
 223                                                 &cap_size, 256))
 224                                         goto end;
 225
 226                                 if (*cap_buf != '\0')
 227                                         BIO_printf(bio_out, " [%s]", cap_buf);
 228
 229                                 OPENSSL_free(cap_buf);
 230                                 }
 231                         BIO_printf(bio_out, "\n");
 232                         }
 233                 else
 234                         ERR_print_errors(bio_err);
 235                 }
 236
 237         ret=0;
 238 end:
 239         ERR_print_errors(bio_err);
 240         sk_pop_free(engines, identity);
 241         if (bio_out != NULL) BIO_free_all(bio_out);
 242         EXIT(ret);
 243         }