apps/openssl.c

   1 /* apps/openssl.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 #ifndef DEBUG
  60 #undef DEBUG
  61 #endif
  62
  63 #include <stdio.h>
  64 #include <string.h>
  65 #include <stdlib.h>
  66 #include <openssl/bio.h>
  67 #include <openssl/crypto.h>
  68 #include <openssl/lhash.h>
  69 #include <openssl/conf.h>
  70 #include <openssl/x509.h>
  71 #include <openssl/pem.h>
  72 #include <openssl/ssl.h>
  73 #define SSLEAY  /* turn off a few special case MONOLITH macros */
  74 #define USE_SOCKETS /* needed for the _O_BINARY defs in the MS world */
  75 #define SSLEAY_SRC
  76 #include "apps.h"
  77 #include "s_apps.h"
  78 #include <openssl/err.h>
  79
  80 /*
  81 #ifdef WINDOWS
  82 #include "bss_file.c"
  83 #endif
  84 */
  85
  86 static unsigned long MS_CALLBACK hash(FUNCTION *a);
  87 static int MS_CALLBACK cmp(FUNCTION *a,FUNCTION *b);
  88 static LHASH *prog_init(void );
  89 static int do_cmd(LHASH *prog,int argc,char *argv[]);
  90 LHASH *config=NULL;
  91 char *default_config_file=NULL;
  92
  93 #ifdef DEBUG
  94 static void sig_stop(int i)
  95         {
  96         char *a=NULL;
  97
  98         *a='\0';
  99         }
 100 #endif
 101
 102 /* Make sure there is only one when MONOLITH is defined */
 103 #ifdef MONOLITH
 104 BIO *bio_err=NULL;
 105 #endif
 106
 107 int main(int Argc, char *Argv[])
 108         {
 109         ARGS arg;
 110 #define PROG_NAME_SIZE  16
 111         char pname[PROG_NAME_SIZE];
 112         FUNCTION f,*fp;
 113         MS_STATIC char *prompt,buf[1024],config_name[256];
 114         int n,i,ret=0;
 115         int argc;
 116         char **argv,*p;
 117         LHASH *prog=NULL;
 118         long errline;
 119
 120         arg.data=NULL;
 121         arg.count=0;
 122
 123         /* SSLeay_add_ssl_algorithms(); is called in apps_startup() */
 124         apps_startup();
 125
 126 #if defined(DEBUG) && !defined(WINDOWS) && !defined(MSDOS)
 127 #ifdef SIGBUS
 128         signal(SIGBUS,sig_stop);
 129 #endif
 130 #ifdef SIGSEGV
 131         signal(SIGSEGV,sig_stop);
 132 #endif
 133 #endif
 134
 135         if (bio_err == NULL)
 136                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
 137                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
 138
 139         CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE);
 140
 141         ERR_load_crypto_strings();
 142
 143         /* Lets load up our environment a little */
 144         p=getenv("OPENSSL_CONF");
 145         if (p == NULL)
 146                 p=getenv("SSLEAY_CONF");
 147         if (p == NULL)
 148                 {
 149                 strcpy(config_name,X509_get_default_cert_area());
 150 #ifndef VMS
 151                 strcat(config_name,"/");
 152 #endif
 153                 strcat(config_name,OPENSSL_CONF);
 154                 p=config_name;
 155                 }
 156
 157         default_config_file=p;
 158
 159         config=CONF_load(config,p,&errline);
 160         if (config == NULL) ERR_clear_error();
 161
 162         prog=prog_init();
 163
 164         /* first check the program name */
 165         program_name(Argv[0],pname,PROG_NAME_SIZE);
 166
 167         f.name=pname;
 168         fp=(FUNCTION *)lh_retrieve(prog,(char *)&f);
 169         if (fp != NULL)
 170                 {
 171                 Argv[0]=pname;
 172                 ret=fp->func(Argc,Argv);
 173                 goto end;
 174                 }
 175
 176         /* ok, now check that there are not arguments, if there are,
 177          * run with them, shifting the ssleay off the front */
 178         if (Argc != 1)
 179                 {
 180                 Argc--;
 181                 Argv++;
 182                 ret=do_cmd(prog,Argc,Argv);
 183                 if (ret < 0) ret=0;
 184                 goto end;
 185                 }
 186
 187         /* ok, lets enter the old 'OpenSSL>' mode */
 188
 189         for (;;)
 190                 {
 191                 ret=0;
 192                 p=buf;
 193                 n=1024;
 194                 i=0;
 195                 for (;;)
 196                         {
 197                         p[0]='\0';
 198                         if (i++)
 199                                 prompt=">";
 200                         else    prompt="OpenSSL> ";
 201                         fputs(prompt,stdout);
 202                         fflush(stdout);
 203                         fgets(p,n,stdin);
 204                         if (p[0] == '\0') goto end;
 205                         i=strlen(p);
 206                         if (i <= 1) break;
 207                         if (p[i-2] != '\\') break;
 208                         i-=2;
 209                         p+=i;
 210                         n-=i;
 211                         }
 212                 if (!chopup_args(&arg,buf,&argc,&argv)) break;
 213
 214                 ret=do_cmd(prog,argc,argv);
 215                 if (ret < 0)
 216                         {
 217                         ret=0;
 218                         goto end;
 219                         }
 220                 if (ret != 0)
 221                         BIO_printf(bio_err,"error in %s\n",argv[0]);
 222                 (void)BIO_flush(bio_err);
 223                 }
 224         BIO_printf(bio_err,"bad exit\n");
 225         ret=1;
 226 end:
 227         if (config != NULL)
 228                 {
 229                 CONF_free(config);
 230                 config=NULL;
 231                 }
 232         if (prog != NULL) lh_free(prog);
 233         if (arg.data != NULL) Free(arg.data);
 234         ERR_remove_state(0);
 235
 236         EVP_cleanup();
 237         ERR_free_strings();
 238
 239         CRYPTO_mem_leaks(bio_err);
 240         if (bio_err != NULL)
 241                 {
 242                 BIO_free(bio_err);
 243                 bio_err=NULL;
 244                 }
 245         EXIT(ret);
 246         }
 247
 248 #define LIST_STANDARD_COMMANDS "list-standard-commands"
 249 #define LIST_MESSAGE_DIGEST_COMMANDS "list-message-digest-commands"
 250 #define LIST_CIPHER_COMMANDS "list-cipher-commands"
 251
 252 static int do_cmd(LHASH *prog, int argc, char *argv[])
 253         {
 254         FUNCTION f,*fp;
 255         int i,ret=1,tp,nl;
 256
 257         if ((argc <= 0) || (argv[0] == NULL))
 258                 { ret=0; goto end; }
 259         f.name=argv[0];
 260         fp=(FUNCTION *)lh_retrieve(prog,(char *)&f);
 261         if (fp != NULL)
 262                 {
 263                 ret=fp->func(argc,argv);
 264                 }
 265         else if ((strcmp(argv[0],"quit") == 0) ||
 266                 (strcmp(argv[0],"q") == 0) ||
 267                 (strcmp(argv[0],"exit") == 0) ||
 268                 (strcmp(argv[0],"bye") == 0))
 269                 {
 270                 ret= -1;
 271                 goto end;
 272                 }
 273         else if ((strcmp(argv[0],LIST_STANDARD_COMMANDS) == 0) ||
 274                 (strcmp(argv[0],LIST_MESSAGE_DIGEST_COMMANDS) == 0) ||
 275                 (strcmp(argv[0],LIST_CIPHER_COMMANDS) == 0))
 276                 {
 277                 int list_type;
 278                 BIO *bio_stdout;
 279
 280                 if (strcmp(argv[0],LIST_STANDARD_COMMANDS) == 0)
 281                         list_type = FUNC_TYPE_GENERAL;
 282                 else if (strcmp(argv[0],LIST_MESSAGE_DIGEST_COMMANDS) == 0)
 283                         list_type = FUNC_TYPE_MD;
 284                 else /* strcmp(argv[0],LIST_CIPHER_COMMANDS) == 0 */
 285                         list_type = FUNC_TYPE_CIPHER;
 286                 bio_stdout = BIO_new_fp(stdout,BIO_NOCLOSE);
 287
 288                 for (fp=functions; fp->name != NULL; fp++)
 289                         if (fp->type == list_type)
 290                                 BIO_printf(bio_stdout, "%s\n", fp->name);
 291                 BIO_free(bio_stdout);
 292                 ret=0;
 293                 goto end;
 294                 }
 295         else
 296                 {
 297                 BIO_printf(bio_err,"openssl:Error: '%s' is an invalid command.\n",
 298                         argv[0]);
 299                 BIO_printf(bio_err, "\nStandard commands");
 300                 i=0;
 301                 tp=0;
 302                 for (fp=functions; fp->name != NULL; fp++)
 303                         {
 304                         nl=0;
 305                         if (((i++) % 5) == 0)
 306                                 {
 307                                 BIO_printf(bio_err,"\n");
 308                                 nl=1;
 309                                 }
 310                         if (fp->type != tp)
 311                                 {
 312                                 tp=fp->type;
 313                                 if (!nl) BIO_printf(bio_err,"\n");
 314                                 if (tp == FUNC_TYPE_MD)
 315                                         {
 316                                         i=1;
 317                                         BIO_printf(bio_err,
 318                                                 "\nMessage Digest commands (see the `dgst' command for more details)\n");
 319                                         }
 320                                 else if (tp == FUNC_TYPE_CIPHER)
 321                                         {
 322                                         i=1;
 323                                         BIO_printf(bio_err,"\nCipher commands (see the `enc' command for more details)\n");
 324                                         }
 325                                 }
 326                         BIO_printf(bio_err,"%-15s",fp->name);
 327                         }
 328                 BIO_printf(bio_err,"\n\n");
 329                 ret=0;
 330                 }
 331 end:
 332         return(ret);
 333         }
 334
 335 static int SortFnByName(const void *_f1,const void *_f2)
 336     {
 337     const FUNCTION *f1=_f1;
 338     const FUNCTION *f2=_f2;
 339
 340     if(f1->type != f2->type)
 341         return f1->type-f2->type;
 342     return strcmp(f1->name,f2->name);
 343     }
 344
 345 static LHASH *prog_init(void)
 346         {
 347         LHASH *ret;
 348         FUNCTION *f;
 349         int i;
 350
 351         /* Purely so it looks nice when the user hits ? */
 352         for(i=0,f=functions ; f->name != NULL ; ++f,++i)
 353             ;
 354         qsort(functions,i,sizeof *functions,SortFnByName);
 355
 356         if ((ret=lh_new(hash,cmp)) == NULL) return(NULL);
 357
 358         for (f=functions; f->name != NULL; f++)
 359                 lh_insert(ret,(char *)f);
 360         return(ret);
 361         }
 362
 363 static int MS_CALLBACK cmp(FUNCTION *a, FUNCTION *b)
 364         {
 365         return(strncmp(a->name,b->name,8));
 366         }
 367
 368 static unsigned long MS_CALLBACK hash(FUNCTION *a)
 369         {
 370         return(lh_strhash(a->name));
 371         }
 372
 373 #undef SSLEAY