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 #include "apps.h"
  75 #include "progs.h"
  76 #include "s_apps.h"
  77 #include <openssl/err.h>
  78
  79 /*
  80 #ifdef WINDOWS
  81 #include "bss_file.c"
  82 #endif
  83 */
  84
  85 static unsigned long MS_CALLBACK hash(FUNCTION *a);
  86 static int MS_CALLBACK cmp(FUNCTION *a,FUNCTION *b);
  87 static LHASH *prog_init(void );
  88 static int do_cmd(LHASH *prog,int argc,char *argv[]);
  89 LHASH *config=NULL;
  90 char *default_config_file=NULL;
  91
  92 #ifdef DEBUG
  93 static void sig_stop(int i)
  94         {
  95         char *a=NULL;
  96
  97         *a='\0';
  98         }
  99 #endif
 100
 101 /* Make sure there is only one when MONOLITH is defined */
 102 #ifdef MONOLITH
 103 BIO *bio_err=NULL;
 104 #endif
 105
 106 int main(int Argc, char *Argv[])
 107         {
 108         ARGS arg;
 109 #define PROG_NAME_SIZE  16
 110         char pname[PROG_NAME_SIZE];
 111         FUNCTION f,*fp;
 112         MS_STATIC char *prompt,buf[1024],config_name[256];
 113         int n,i,ret=0;
 114         int argc;
 115         char **argv,*p;
 116         LHASH *prog=NULL;
 117         long errline;
 118
 119         arg.data=NULL;
 120         arg.count=0;
 121
 122 #if defined(DEBUG) && !defined(WINDOWS) && !defined(MSDOS)
 123 #ifdef SIGBUS
 124         signal(SIGBUS,sig_stop);
 125 #endif
 126 #ifdef SIGSEGV
 127         signal(SIGSEGV,sig_stop);
 128 #endif
 129 #endif
 130
 131         CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
 132
 133         apps_startup();
 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         ERR_load_crypto_strings();
 140
 141         /* Lets load up our environment a little */
 142         p=getenv("OPENSSL_CONF");
 143         if (p == NULL)
 144                 p=getenv("SSLEAY_CONF");
 145         if (p == NULL)
 146                 {
 147                 strcpy(config_name,X509_get_default_cert_area());
 148 #ifndef VMS
 149                 strcat(config_name,"/");
 150 #endif
 151                 strcat(config_name,OPENSSL_CONF);
 152                 p=config_name;
 153                 }
 154
 155         default_config_file=p;
 156
 157         config=CONF_load(config,p,&errline);
 158         if (config == NULL) ERR_clear_error();
 159
 160         prog=prog_init();
 161
 162         /* first check the program name */
 163         program_name(Argv[0],pname,PROG_NAME_SIZE);
 164
 165         f.name=pname;
 166         fp=(FUNCTION *)lh_retrieve(prog,&f);
 167         if (fp != NULL)
 168                 {
 169                 Argv[0]=pname;
 170                 ret=fp->func(Argc,Argv);
 171                 goto end;
 172                 }
 173
 174         /* ok, now check that there are not arguments, if there are,
 175          * run with them, shifting the ssleay off the front */
 176         if (Argc != 1)
 177                 {
 178                 Argc--;
 179                 Argv++;
 180                 ret=do_cmd(prog,Argc,Argv);
 181                 if (ret < 0) ret=0;
 182                 goto end;
 183                 }
 184
 185         /* ok, lets enter the old 'OpenSSL>' mode */
 186
 187         for (;;)
 188                 {
 189                 ret=0;
 190                 p=buf;
 191                 n=1024;
 192                 i=0;
 193                 for (;;)
 194                         {
 195                         p[0]='\0';
 196                         if (i++)
 197                                 prompt=">";
 198                         else    prompt="OpenSSL> ";
 199                         fputs(prompt,stdout);
 200                         fflush(stdout);
 201                         fgets(p,n,stdin);
 202                         if (p[0] == '\0') goto end;
 203                         i=strlen(p);
 204                         if (i <= 1) break;
 205                         if (p[i-2] != '\\') break;
 206                         i-=2;
 207                         p+=i;
 208                         n-=i;
 209                         }
 210                 if (!chopup_args(&arg,buf,&argc,&argv)) break;
 211
 212                 ret=do_cmd(prog,argc,argv);
 213                 if (ret < 0)
 214                         {
 215                         ret=0;
 216                         goto end;
 217                         }
 218                 if (ret != 0)
 219                         BIO_printf(bio_err,"error in %s\n",argv[0]);
 220                 (void)BIO_flush(bio_err);
 221                 }
 222         BIO_printf(bio_err,"bad exit\n");
 223         ret=1;
 224 end:
 225         if (config != NULL)
 226                 {
 227                 CONF_free(config);
 228                 config=NULL;
 229                 }
 230         if (prog != NULL) lh_free(prog);
 231         if (arg.data != NULL) Free(arg.data);
 232         ERR_remove_state(0);
 233
 234         EVP_cleanup();
 235         ERR_free_strings();
 236
 237 #ifdef LEVITTE_DEBUG
 238         CRYPTO_push_info("Just to make sure I get a memory leak I can see :-)");
 239         (void)Malloc(1024);
 240         CRYPTO_pop_info();
 241 #endif
 242
 243         CRYPTO_mem_leaks(bio_err);
 244         if (bio_err != NULL)
 245                 {
 246                 BIO_free(bio_err);
 247                 bio_err=NULL;
 248                 }
 249         EXIT(ret);
 250         }
 251
 252 #define LIST_STANDARD_COMMANDS "list-standard-commands"
 253 #define LIST_MESSAGE_DIGEST_COMMANDS "list-message-digest-commands"
 254 #define LIST_CIPHER_COMMANDS "list-cipher-commands"
 255
 256 static int do_cmd(LHASH *prog, int argc, char *argv[])
 257         {
 258         FUNCTION f,*fp;
 259         int i,ret=1,tp,nl;
 260
 261         if ((argc <= 0) || (argv[0] == NULL))
 262                 { ret=0; goto end; }
 263         f.name=argv[0];
 264         fp=(FUNCTION *)lh_retrieve(prog,&f);
 265         if (fp != NULL)
 266                 {
 267                 ret=fp->func(argc,argv);
 268                 }
 269         else if ((strcmp(argv[0],"quit") == 0) ||
 270                 (strcmp(argv[0],"q") == 0) ||
 271                 (strcmp(argv[0],"exit") == 0) ||
 272                 (strcmp(argv[0],"bye") == 0))
 273                 {
 274                 ret= -1;
 275                 goto end;
 276                 }
 277         else if ((strcmp(argv[0],LIST_STANDARD_COMMANDS) == 0) ||
 278                 (strcmp(argv[0],LIST_MESSAGE_DIGEST_COMMANDS) == 0) ||
 279                 (strcmp(argv[0],LIST_CIPHER_COMMANDS) == 0))
 280                 {
 281                 int list_type;
 282                 BIO *bio_stdout;
 283
 284                 if (strcmp(argv[0],LIST_STANDARD_COMMANDS) == 0)
 285                         list_type = FUNC_TYPE_GENERAL;
 286                 else if (strcmp(argv[0],LIST_MESSAGE_DIGEST_COMMANDS) == 0)
 287                         list_type = FUNC_TYPE_MD;
 288                 else /* strcmp(argv[0],LIST_CIPHER_COMMANDS) == 0 */
 289                         list_type = FUNC_TYPE_CIPHER;
 290                 bio_stdout = BIO_new_fp(stdout,BIO_NOCLOSE);
 291
 292                 for (fp=functions; fp->name != NULL; fp++)
 293                         if (fp->type == list_type)
 294                                 BIO_printf(bio_stdout, "%s\n", fp->name);
 295                 BIO_free(bio_stdout);
 296                 ret=0;
 297                 goto end;
 298                 }
 299         else
 300                 {
 301                 BIO_printf(bio_err,"openssl:Error: '%s' is an invalid command.\n",
 302                         argv[0]);
 303                 BIO_printf(bio_err, "\nStandard commands");
 304                 i=0;
 305                 tp=0;
 306                 for (fp=functions; fp->name != NULL; fp++)
 307                         {
 308                         nl=0;
 309                         if (((i++) % 5) == 0)
 310                                 {
 311                                 BIO_printf(bio_err,"\n");
 312                                 nl=1;
 313                                 }
 314                         if (fp->type != tp)
 315                                 {
 316                                 tp=fp->type;
 317                                 if (!nl) BIO_printf(bio_err,"\n");
 318                                 if (tp == FUNC_TYPE_MD)
 319                                         {
 320                                         i=1;
 321                                         BIO_printf(bio_err,
 322                                                 "\nMessage Digest commands (see the `dgst' command for more details)\n");
 323                                         }
 324                                 else if (tp == FUNC_TYPE_CIPHER)
 325                                         {
 326                                         i=1;
 327                                         BIO_printf(bio_err,"\nCipher commands (see the `enc' command for more details)\n");
 328                                         }
 329                                 }
 330                         BIO_printf(bio_err,"%-15s",fp->name);
 331                         }
 332                 BIO_printf(bio_err,"\n\n");
 333                 ret=0;
 334                 }
 335 end:
 336         return(ret);
 337         }
 338
 339 static int SortFnByName(const void *_f1,const void *_f2)
 340     {
 341     const FUNCTION *f1=_f1;
 342     const FUNCTION *f2=_f2;
 343
 344     if(f1->type != f2->type)
 345         return f1->type-f2->type;
 346     return strcmp(f1->name,f2->name);
 347     }
 348
 349 static LHASH *prog_init(void)
 350         {
 351         LHASH *ret;
 352         FUNCTION *f;
 353         int i;
 354
 355         /* Purely so it looks nice when the user hits ? */
 356         for(i=0,f=functions ; f->name != NULL ; ++f,++i)
 357             ;
 358         qsort(functions,i,sizeof *functions,SortFnByName);
 359
 360         if ((ret=lh_new(hash,cmp)) == NULL) return(NULL);
 361
 362         for (f=functions; f->name != NULL; f++)
 363                 lh_insert(ret,f);
 364         return(ret);
 365         }
 366
 367 static int MS_CALLBACK cmp(FUNCTION *a, FUNCTION *b)
 368         {
 369         return(strncmp(a->name,b->name,8));
 370         }
 371
 372 static unsigned long MS_CALLBACK hash(FUNCTION *a)
 373         {
 374         return(lh_strhash(a->name));
 375         }