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 #ifndef NOPROTO
  87 static unsigned long MS_CALLBACK hash(FUNCTION *a);
  88 static int MS_CALLBACK cmp(FUNCTION *a,FUNCTION *b);
  89 static LHASH *prog_init(void );
  90 static int do_cmd(LHASH *prog,int argc,char *argv[]);
  91 #else
  92 static unsigned long MS_CALLBACK hash();
  93 static int MS_CALLBACK cmp();
  94 static LHASH *prog_init();
  95 static int do_cmd();
  96 #endif
  97
  98 LHASH *config=NULL;
  99 char *default_config_file=NULL;
 100
 101 #ifdef DEBUG
 102 static void sig_stop(int i)
 103         {
 104         char *a=NULL;
 105
 106         *a='\0';
 107         }
 108 #endif
 109
 110 /* Make sure there is only one when MONOLITH is defined */
 111 #ifdef MONOLITH
 112 BIO *bio_err=NULL;
 113 #endif
 114
 115 int main(int Argc, char *Argv[])
 116         {
 117         ARGS arg;
 118 #define PROG_NAME_SIZE  16
 119         char pname[PROG_NAME_SIZE];
 120         FUNCTION f,*fp;
 121         MS_STATIC char *prompt,buf[1024],config_name[256];
 122         int n,i,ret=0;
 123         int argc;
 124         char **argv,*p;
 125         LHASH *prog=NULL;
 126         long errline;
 127
 128         arg.data=NULL;
 129         arg.count=0;
 130
 131         /* SSLeay_add_ssl_algorithms(); is called in apps_startup() */
 132         apps_startup();
 133
 134 #if defined(DEBUG) && !defined(WINDOWS) && !defined(MSDOS)
 135 #ifdef SIGBUS
 136         signal(SIGBUS,sig_stop);
 137 #endif
 138 #ifdef SIGSEGV
 139         signal(SIGSEGV,sig_stop);
 140 #endif
 141 #endif
 142
 143         if (bio_err == NULL)
 144                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
 145                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
 146
 147         CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
 148
 149         ERR_load_crypto_strings();
 150
 151         /* Lets load up our environment a little */
 152         p=getenv("OPENSSL_CONF");
 153         if (p == NULL)
 154                 p=getenv("SSLEAY_CONF");
 155         if (p == NULL)
 156                 {
 157                 strcpy(config_name,X509_get_default_cert_area());
 158                 strcat(config_name,"/lib/");
 159                 strcat(config_name,OPENSSL_CONF);
 160                 p=config_name;
 161                 }
 162
 163         default_config_file=p;
 164
 165         config=CONF_load(config,p,&errline);
 166         if (config == NULL) ERR_clear_error();
 167
 168         prog=prog_init();
 169
 170         /* first check the program name */
 171         program_name(Argv[0],pname,PROG_NAME_SIZE);
 172
 173         f.name=pname;
 174         fp=(FUNCTION *)lh_retrieve(prog,(char *)&f);
 175         if (fp != NULL)
 176                 {
 177                 Argv[0]=pname;
 178                 ret=fp->func(Argc,Argv);
 179                 goto end;
 180                 }
 181
 182         /* ok, now check that there are not arguments, if there are,
 183          * run with them, shifting the ssleay off the front */
 184         if (Argc != 1)
 185                 {
 186                 Argc--;
 187                 Argv++;
 188                 ret=do_cmd(prog,Argc,Argv);
 189                 if (ret < 0) ret=0;
 190                 goto end;
 191                 }
 192
 193         /* ok, lets enter the old 'OpenSSL>' mode */
 194
 195         for (;;)
 196                 {
 197                 ret=0;
 198                 p=buf;
 199                 n=1024;
 200                 i=0;
 201                 for (;;)
 202                         {
 203                         p[0]='\0';
 204                         if (i++)
 205                                 prompt=">";
 206                         else    prompt="OpenSSL> ";
 207                         fputs(prompt,stdout);
 208                         fflush(stdout);
 209                         fgets(p,n,stdin);
 210                         if (p[0] == '\0') goto end;
 211                         i=strlen(p);
 212                         if (i <= 1) break;
 213                         if (p[i-2] != '\\') break;
 214                         i-=2;
 215                         p+=i;
 216                         n-=i;
 217                         }
 218                 if (!chopup_args(&arg,buf,&argc,&argv)) break;
 219
 220                 ret=do_cmd(prog,argc,argv);
 221                 if (ret < 0)
 222                         {
 223                         ret=0;
 224                         goto end;
 225                         }
 226                 if (ret != 0)
 227                         BIO_printf(bio_err,"error in %s\n",argv[0]);
 228                 BIO_flush(bio_err);
 229                 }
 230         BIO_printf(bio_err,"bad exit\n");
 231         ret=1;
 232 end:
 233         if (config != NULL)
 234                 {
 235                 CONF_free(config);
 236                 config=NULL;
 237                 }
 238         if (prog != NULL) lh_free(prog);
 239         if (arg.data != NULL) Free(arg.data);
 240         ERR_remove_state(0);
 241
 242         EVP_cleanup();
 243         ERR_free_strings();
 244
 245         CRYPTO_mem_leaks(bio_err);
 246         if (bio_err != NULL)
 247                 {
 248                 BIO_free(bio_err);
 249                 bio_err=NULL;
 250                 }
 251         EXIT(ret);
 252         }
 253
 254 #define LIST_STANDARD_COMMANDS "list-standard-commands"
 255 #define LIST_MESSAGE_DIGEST_COMMANDS "list-message-digest-commands"
 256 #define LIST_CIPHER_COMMANDS "list-cipher-commands"
 257
 258 static int do_cmd(LHASH *prog, int argc, char *argv[])
 259         {
 260         FUNCTION f,*fp;
 261         int i,ret=1,tp,nl;
 262
 263         if ((argc <= 0) || (argv[0] == NULL))
 264                 { ret=0; goto end; }
 265         f.name=argv[0];
 266         fp=(FUNCTION *)lh_retrieve(prog,(char *)&f);
 267         if (fp != NULL)
 268                 {
 269                 ret=fp->func(argc,argv);
 270                 }
 271         else if ((strcmp(argv[0],"quit") == 0) ||
 272                 (strcmp(argv[0],"q") == 0) ||
 273                 (strcmp(argv[0],"exit") == 0) ||
 274                 (strcmp(argv[0],"bye") == 0))
 275                 {
 276                 ret= -1;
 277                 goto end;
 278                 }
 279         else if ((strcmp(argv[0],LIST_STANDARD_COMMANDS) == 0) ||
 280                 (strcmp(argv[0],LIST_MESSAGE_DIGEST_COMMANDS) == 0) ||
 281                 (strcmp(argv[0],LIST_CIPHER_COMMANDS) == 0))
 282                 {
 283                 int list_type;
 284                 BIO *bio_stdout;
 285
 286                 if (strcmp(argv[0],LIST_STANDARD_COMMANDS) == 0)
 287                         list_type = FUNC_TYPE_GENERAL;
 288                 else if (strcmp(argv[0],LIST_MESSAGE_DIGEST_COMMANDS) == 0)
 289                         list_type = FUNC_TYPE_MD;
 290                 else /* strcmp(argv[0],LIST_CIPHER_COMMANDS) == 0 */
 291                         list_type = FUNC_TYPE_CIPHER;
 292                 bio_stdout = BIO_new_fp(stdout,BIO_NOCLOSE);
 293
 294                 for (fp=functions; fp->name != NULL; fp++)
 295                         if (fp->type == list_type)
 296                                 BIO_printf(bio_stdout, "%s\n", fp->name);
 297                 BIO_free(bio_stdout);
 298                 ret=0;
 299                 goto end;
 300                 }
 301         else
 302                 {
 303                 BIO_printf(bio_err,"openssl:Error: '%s' is an invalid command.\n",
 304                         argv[0]);
 305                 BIO_printf(bio_err, "\nStandard commands");
 306                 i=0;
 307                 tp=0;
 308                 for (fp=functions; fp->name != NULL; fp++)
 309                         {
 310                         nl=0;
 311                         if (((i++) % 5) == 0)
 312                                 {
 313                                 BIO_printf(bio_err,"\n");
 314                                 nl=1;
 315                                 }
 316                         if (fp->type != tp)
 317                                 {
 318                                 tp=fp->type;
 319                                 if (!nl) BIO_printf(bio_err,"\n");
 320                                 if (tp == FUNC_TYPE_MD)
 321                                         {
 322                                         i=1;
 323                                         BIO_printf(bio_err,
 324                                                 "\nMessage Digest commands (see the `dgst' command for more details)\n");
 325                                         }
 326                                 else if (tp == FUNC_TYPE_CIPHER)
 327                                         {
 328                                         i=1;
 329                                         BIO_printf(bio_err,"\nCipher commands (see the `enc' command for more details)\n");
 330                                         }
 331                                 }
 332                         BIO_printf(bio_err,"%-15s",fp->name);
 333                         }
 334                 BIO_printf(bio_err,"\n\n");
 335                 ret=0;
 336                 }
 337 end:
 338         return(ret);
 339         }
 340
 341 static int SortFnByName(const void *_f1,const void *_f2)
 342     {
 343     const FUNCTION *f1=_f1;
 344     const FUNCTION *f2=_f2;
 345
 346     if(f1->type != f2->type)
 347         return f1->type-f2->type;
 348     return strcmp(f1->name,f2->name);
 349     }
 350
 351 static LHASH *prog_init(void)
 352         {
 353         LHASH *ret;
 354         FUNCTION *f;
 355         int i;
 356
 357         /* Purely so it looks nice when the user hits ? */
 358         for(i=0,f=functions ; f->name != NULL ; ++f,++i)
 359             ;
 360         qsort(functions,i,sizeof *functions,SortFnByName);
 361
 362         if ((ret=lh_new(hash,cmp)) == NULL) return(NULL);
 363
 364         for (f=functions; f->name != NULL; f++)
 365                 lh_insert(ret,(char *)f);
 366         return(ret);
 367         }
 368
 369 static int MS_CALLBACK cmp(FUNCTION *a, FUNCTION *b)
 370         {
 371         return(strncmp(a->name,b->name,8));
 372         }
 373
 374 static unsigned long MS_CALLBACK hash(FUNCTION *a)
 375         {
 376         return(lh_strhash(a->name));
 377         }
 378
 379 #undef SSLEAY