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 USE_SOCKETS /* needed for the _O_BINARY defs in the MS world */
  74 #define OPENSSL_C /* tells apps.h to use complete apps_startup() */
  75 #include "apps.h"
  76 #include "progs.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 #if defined(DEBUG) && !defined(WINDOWS) && !defined(MSDOS)
 124 #ifdef SIGBUS
 125         signal(SIGBUS,sig_stop);
 126 #endif
 127 #ifdef SIGSEGV
 128         signal(SIGSEGV,sig_stop);
 129 #endif
 130 #endif
 131
 132         CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
 133
 134         apps_startup();
 135
 136         if (bio_err == NULL)
 137                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
 138                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
 139
 140         ERR_load_crypto_strings();
 141
 142         /* Lets load up our environment a little */
 143         p=getenv("OPENSSL_CONF");
 144         if (p == NULL)
 145                 p=getenv("SSLEAY_CONF");
 146         if (p == NULL)
 147                 {
 148                 strcpy(config_name,X509_get_default_cert_area());
 149 #ifndef VMS
 150                 strcat(config_name,"/");
 151 #endif
 152                 strcat(config_name,OPENSSL_CONF);
 153                 p=config_name;
 154                 }
 155
 156         default_config_file=p;
 157
 158         config=CONF_load(config,p,&errline);
 159         if (config == NULL) ERR_clear_error();
 160
 161         prog=prog_init();
 162
 163         /* first check the program name */
 164         program_name(Argv[0],pname,PROG_NAME_SIZE);
 165
 166         f.name=pname;
 167         fp=(FUNCTION *)lh_retrieve(prog,&f);
 168         if (fp != NULL)
 169                 {
 170                 Argv[0]=pname;
 171                 ret=fp->func(Argc,Argv);
 172                 goto end;
 173                 }
 174
 175         /* ok, now check that there are not arguments, if there are,
 176          * run with them, shifting the ssleay off the front */
 177         if (Argc != 1)
 178                 {
 179                 Argc--;
 180                 Argv++;
 181                 ret=do_cmd(prog,Argc,Argv);
 182                 if (ret < 0) ret=0;
 183                 goto end;
 184                 }
 185
 186         /* ok, lets enter the old 'OpenSSL>' mode */
 187
 188         for (;;)
 189                 {
 190                 ret=0;
 191                 p=buf;
 192                 n=1024;
 193                 i=0;
 194                 for (;;)
 195                         {
 196                         p[0]='\0';
 197                         if (i++)
 198                                 prompt=">";
 199                         else    prompt="OpenSSL> ";
 200                         fputs(prompt,stdout);
 201                         fflush(stdout);
 202                         fgets(p,n,stdin);
 203                         if (p[0] == '\0') goto end;
 204                         i=strlen(p);
 205                         if (i <= 1) break;
 206                         if (p[i-2] != '\\') break;
 207                         i-=2;
 208                         p+=i;
 209                         n-=i;
 210                         }
 211                 if (!chopup_args(&arg,buf,&argc,&argv)) break;
 212
 213                 ret=do_cmd(prog,argc,argv);
 214                 if (ret < 0)
 215                         {
 216                         ret=0;
 217                         goto end;
 218                         }
 219                 if (ret != 0)
 220                         BIO_printf(bio_err,"error in %s\n",argv[0]);
 221                 (void)BIO_flush(bio_err);
 222                 }
 223         BIO_printf(bio_err,"bad exit\n");
 224         ret=1;
 225 end:
 226         if (config != NULL)
 227                 {
 228                 CONF_free(config);
 229                 config=NULL;
 230                 }
 231         if (prog != NULL) lh_free(prog);
 232         if (arg.data != NULL) Free(arg.data);
 233         ERR_remove_state(0);
 234
 235         EVP_cleanup();
 236         ERR_free_strings();
 237
 238 #ifdef LEVITTE_DEBUG
 239         CRYPTO_push_info("Just to make sure I get a memory leak I can see :-)");
 240         (void)Malloc(1024);
 241         CRYPTO_pop_info();
 242 #endif
 243
 244         CRYPTO_mem_leaks(bio_err);
 245         if (bio_err != NULL)
 246                 {
 247                 BIO_free(bio_err);
 248                 bio_err=NULL;
 249                 }
 250         EXIT(ret);
 251         }
 252
 253 #define LIST_STANDARD_COMMANDS "list-standard-commands"
 254 #define LIST_MESSAGE_DIGEST_COMMANDS "list-message-digest-commands"
 255 #define LIST_CIPHER_COMMANDS "list-cipher-commands"
 256
 257 static int do_cmd(LHASH *prog, int argc, char *argv[])
 258         {
 259         FUNCTION f,*fp;
 260         int i,ret=1,tp,nl;
 261
 262         if ((argc <= 0) || (argv[0] == NULL))
 263                 { ret=0; goto end; }
 264         f.name=argv[0];
 265         fp=(FUNCTION *)lh_retrieve(prog,&f);
 266         if (fp != NULL)
 267                 {
 268                 ret=fp->func(argc,argv);
 269                 }
 270         else if ((strcmp(argv[0],"quit") == 0) ||
 271                 (strcmp(argv[0],"q") == 0) ||
 272                 (strcmp(argv[0],"exit") == 0) ||
 273                 (strcmp(argv[0],"bye") == 0))
 274                 {
 275                 ret= -1;
 276                 goto end;
 277                 }
 278         else if ((strcmp(argv[0],LIST_STANDARD_COMMANDS) == 0) ||
 279                 (strcmp(argv[0],LIST_MESSAGE_DIGEST_COMMANDS) == 0) ||
 280                 (strcmp(argv[0],LIST_CIPHER_COMMANDS) == 0))
 281                 {
 282                 int list_type;
 283                 BIO *bio_stdout;
 284
 285                 if (strcmp(argv[0],LIST_STANDARD_COMMANDS) == 0)
 286                         list_type = FUNC_TYPE_GENERAL;
 287                 else if (strcmp(argv[0],LIST_MESSAGE_DIGEST_COMMANDS) == 0)
 288                         list_type = FUNC_TYPE_MD;
 289                 else /* strcmp(argv[0],LIST_CIPHER_COMMANDS) == 0 */
 290                         list_type = FUNC_TYPE_CIPHER;
 291                 bio_stdout = BIO_new_fp(stdout,BIO_NOCLOSE);
 292
 293                 for (fp=functions; fp->name != NULL; fp++)
 294                         if (fp->type == list_type)
 295                                 BIO_printf(bio_stdout, "%s\n", fp->name);
 296                 BIO_free(bio_stdout);
 297                 ret=0;
 298                 goto end;
 299                 }
 300         else
 301                 {
 302                 BIO_printf(bio_err,"openssl:Error: '%s' is an invalid command.\n",
 303                         argv[0]);
 304                 BIO_printf(bio_err, "\nStandard commands");
 305                 i=0;
 306                 tp=0;
 307                 for (fp=functions; fp->name != NULL; fp++)
 308                         {
 309                         nl=0;
 310                         if (((i++) % 5) == 0)
 311                                 {
 312                                 BIO_printf(bio_err,"\n");
 313                                 nl=1;
 314                                 }
 315                         if (fp->type != tp)
 316                                 {
 317                                 tp=fp->type;
 318                                 if (!nl) BIO_printf(bio_err,"\n");
 319                                 if (tp == FUNC_TYPE_MD)
 320                                         {
 321                                         i=1;
 322                                         BIO_printf(bio_err,
 323                                                 "\nMessage Digest commands (see the `dgst' command for more details)\n");
 324                                         }
 325                                 else if (tp == FUNC_TYPE_CIPHER)
 326                                         {
 327                                         i=1;
 328                                         BIO_printf(bio_err,"\nCipher commands (see the `enc' command for more details)\n");
 329                                         }
 330                                 }
 331                         BIO_printf(bio_err,"%-15s",fp->name);
 332                         }
 333                 BIO_printf(bio_err,"\n\n");
 334                 ret=0;
 335                 }
 336 end:
 337         return(ret);
 338         }
 339
 340 static int SortFnByName(const void *_f1,const void *_f2)
 341     {
 342     const FUNCTION *f1=_f1;
 343     const FUNCTION *f2=_f2;
 344
 345     if(f1->type != f2->type)
 346         return f1->type-f2->type;
 347     return strcmp(f1->name,f2->name);
 348     }
 349
 350 static LHASH *prog_init(void)
 351         {
 352         LHASH *ret;
 353         FUNCTION *f;
 354         int i;
 355
 356         /* Purely so it looks nice when the user hits ? */
 357         for(i=0,f=functions ; f->name != NULL ; ++f,++i)
 358             ;
 359         qsort(functions,i,sizeof *functions,SortFnByName);
 360
 361         if ((ret=lh_new(hash,cmp)) == NULL) return(NULL);
 362
 363         for (f=functions; f->name != NULL; f++)
 364                 lh_insert(ret,f);
 365         return(ret);
 366         }
 367
 368 static int MS_CALLBACK cmp(FUNCTION *a, FUNCTION *b)
 369         {
 370         return(strncmp(a->name,b->name,8));
 371         }
 372
 373 static unsigned long MS_CALLBACK hash(FUNCTION *a)
 374         {
 375         return(lh_strhash(a->name));
 376         }