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 #include <stdio.h>
  60 #include <string.h>
  61 #include <stdlib.h>
  62 #define OPENSSL_C /* tells apps.h to use complete apps_startup() */
  63 #include <openssl/bio.h>
  64 #include <openssl/crypto.h>
  65 #include <openssl/lhash.h>
  66 #include <openssl/conf.h>
  67 #include <openssl/x509.h>
  68 #include <openssl/pem.h>
  69 #include <openssl/ssl.h>
  70 #define USE_SOCKETS /* needed for the _O_BINARY defs in the MS world */
  71 #include "apps.h"
  72 #include "progs.h"
  73 #include "s_apps.h"
  74 #include <openssl/err.h>
  75
  76 static unsigned long MS_CALLBACK hash(FUNCTION *a);
  77 static int MS_CALLBACK cmp(FUNCTION *a,FUNCTION *b);
  78 static LHASH *prog_init(void );
  79 static int do_cmd(LHASH *prog,int argc,char *argv[]);
  80 LHASH *config=NULL;
  81 char *default_config_file=NULL;
  82
  83 /* Make sure there is only one when MONOLITH is defined */
  84 #ifdef MONOLITH
  85 BIO *bio_err=NULL;
  86 #endif
  87
  88 int main(int Argc, char *Argv[])
  89         {
  90         ARGS arg;
  91 #define PROG_NAME_SIZE  16
  92         char pname[PROG_NAME_SIZE];
  93         FUNCTION f,*fp;
  94         MS_STATIC char *prompt,buf[1024],config_name[256];
  95         int n,i,ret=0;
  96         int argc;
  97         char **argv,*p;
  98         LHASH *prog=NULL;
  99         long errline;
 100
 101         arg.data=NULL;
 102         arg.count=0;
 103
 104         if (getenv("OPENSSL_DEBUG_MEMORY") != NULL)
 105                 CRYPTO_malloc_debug_init();
 106         CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
 107
 108         apps_startup();
 109
 110         if (bio_err == NULL)
 111                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
 112                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
 113
 114         ERR_load_crypto_strings();
 115         ENGINE_load_builtin_engines();
 116
 117         /* Lets load up our environment a little */
 118         p=getenv("OPENSSL_CONF");
 119         if (p == NULL)
 120                 p=getenv("SSLEAY_CONF");
 121         if (p == NULL)
 122                 {
 123                 strcpy(config_name,X509_get_default_cert_area());
 124 #ifndef VMS
 125                 strcat(config_name,"/");
 126 #endif
 127                 strcat(config_name,OPENSSL_CONF);
 128                 p=config_name;
 129                 }
 130
 131         default_config_file=p;
 132
 133         config=CONF_load(config,p,&errline);
 134         if (config == NULL) ERR_clear_error();
 135
 136         prog=prog_init();
 137
 138         /* first check the program name */
 139         program_name(Argv[0],pname,PROG_NAME_SIZE);
 140
 141         f.name=pname;
 142         fp=(FUNCTION *)lh_retrieve(prog,&f);
 143         if (fp != NULL)
 144                 {
 145                 Argv[0]=pname;
 146                 ret=fp->func(Argc,Argv);
 147                 goto end;
 148                 }
 149
 150         /* ok, now check that there are not arguments, if there are,
 151          * run with them, shifting the ssleay off the front */
 152         if (Argc != 1)
 153                 {
 154                 Argc--;
 155                 Argv++;
 156                 ret=do_cmd(prog,Argc,Argv);
 157                 if (ret < 0) ret=0;
 158                 goto end;
 159                 }
 160
 161         /* ok, lets enter the old 'OpenSSL>' mode */
 162
 163         for (;;)
 164                 {
 165                 ret=0;
 166                 p=buf;
 167                 n=1024;
 168                 i=0;
 169                 for (;;)
 170                         {
 171                         p[0]='\0';
 172                         if (i++)
 173                                 prompt=">";
 174                         else    prompt="OpenSSL> ";
 175                         fputs(prompt,stdout);
 176                         fflush(stdout);
 177                         fgets(p,n,stdin);
 178                         if (p[0] == '\0') goto end;
 179                         i=strlen(p);
 180                         if (i <= 1) break;
 181                         if (p[i-2] != '\\') break;
 182                         i-=2;
 183                         p+=i;
 184                         n-=i;
 185                         }
 186                 if (!chopup_args(&arg,buf,&argc,&argv)) break;
 187
 188                 ret=do_cmd(prog,argc,argv);
 189                 if (ret < 0)
 190                         {
 191                         ret=0;
 192                         goto end;
 193                         }
 194                 if (ret != 0)
 195                         BIO_printf(bio_err,"error in %s\n",argv[0]);
 196                 (void)BIO_flush(bio_err);
 197                 }
 198         BIO_printf(bio_err,"bad exit\n");
 199         ret=1;
 200 end:
 201         if (config != NULL)
 202                 {
 203                 CONF_free(config);
 204                 config=NULL;
 205                 }
 206         if (prog != NULL) lh_free(prog);
 207         if (arg.data != NULL) OPENSSL_free(arg.data);
 208         ERR_remove_state(0);
 209
 210         EVP_cleanup();
 211         ERR_free_strings();
 212
 213         CRYPTO_mem_leaks(bio_err);
 214         if (bio_err != NULL)
 215                 {
 216                 BIO_free(bio_err);
 217                 bio_err=NULL;
 218                 }
 219         EXIT(ret);
 220         }
 221
 222 #define LIST_STANDARD_COMMANDS "list-standard-commands"
 223 #define LIST_MESSAGE_DIGEST_COMMANDS "list-message-digest-commands"
 224 #define LIST_CIPHER_COMMANDS "list-cipher-commands"
 225
 226 static int do_cmd(LHASH *prog, int argc, char *argv[])
 227         {
 228         FUNCTION f,*fp;
 229         int i,ret=1,tp,nl;
 230
 231         if ((argc <= 0) || (argv[0] == NULL))
 232                 { ret=0; goto end; }
 233         f.name=argv[0];
 234         fp=(FUNCTION *)lh_retrieve(prog,&f);
 235         if (fp != NULL)
 236                 {
 237                 ret=fp->func(argc,argv);
 238                 }
 239         else if ((strncmp(argv[0],"no-",3)) == 0)
 240                 {
 241                 BIO *bio_stdout = BIO_new_fp(stdout,BIO_NOCLOSE);
 242 #ifdef VMS
 243                 {
 244                 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 245                 bio_stdout = BIO_push(tmpbio, bio_stdout);
 246                 }
 247 #endif
 248                 f.name=argv[0]+3;
 249                 ret = (lh_retrieve(prog,&f) != NULL);
 250                 if (!ret)
 251                         BIO_printf(bio_stdout, "%s\n", argv[0]);
 252                 else
 253                         BIO_printf(bio_stdout, "%s\n", argv[0]+3);
 254                 BIO_free_all(bio_stdout);
 255                 goto end;
 256                 }
 257         else if ((strcmp(argv[0],"quit") == 0) ||
 258                 (strcmp(argv[0],"q") == 0) ||
 259                 (strcmp(argv[0],"exit") == 0) ||
 260                 (strcmp(argv[0],"bye") == 0))
 261                 {
 262                 ret= -1;
 263                 goto end;
 264                 }
 265         else if ((strcmp(argv[0],LIST_STANDARD_COMMANDS) == 0) ||
 266                 (strcmp(argv[0],LIST_MESSAGE_DIGEST_COMMANDS) == 0) ||
 267                 (strcmp(argv[0],LIST_CIPHER_COMMANDS) == 0))
 268                 {
 269                 int list_type;
 270                 BIO *bio_stdout;
 271
 272                 if (strcmp(argv[0],LIST_STANDARD_COMMANDS) == 0)
 273                         list_type = FUNC_TYPE_GENERAL;
 274                 else if (strcmp(argv[0],LIST_MESSAGE_DIGEST_COMMANDS) == 0)
 275                         list_type = FUNC_TYPE_MD;
 276                 else /* strcmp(argv[0],LIST_CIPHER_COMMANDS) == 0 */
 277                         list_type = FUNC_TYPE_CIPHER;
 278                 bio_stdout = BIO_new_fp(stdout,BIO_NOCLOSE);
 279 #ifdef VMS
 280                 {
 281                 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 282                 bio_stdout = BIO_push(tmpbio, bio_stdout);
 283                 }
 284 #endif
 285
 286                 for (fp=functions; fp->name != NULL; fp++)
 287                         if (fp->type == list_type)
 288                                 BIO_printf(bio_stdout, "%s\n", fp->name);
 289                 BIO_free_all(bio_stdout);
 290                 ret=0;
 291                 goto end;
 292                 }
 293         else
 294                 {
 295                 BIO_printf(bio_err,"openssl:Error: '%s' is an invalid command.\n",
 296                         argv[0]);
 297                 BIO_printf(bio_err, "\nStandard commands");
 298                 i=0;
 299                 tp=0;
 300                 for (fp=functions; fp->name != NULL; fp++)
 301                         {
 302                         nl=0;
 303                         if (((i++) % 5) == 0)
 304                                 {
 305                                 BIO_printf(bio_err,"\n");
 306                                 nl=1;
 307                                 }
 308                         if (fp->type != tp)
 309                                 {
 310                                 tp=fp->type;
 311                                 if (!nl) BIO_printf(bio_err,"\n");
 312                                 if (tp == FUNC_TYPE_MD)
 313                                         {
 314                                         i=1;
 315                                         BIO_printf(bio_err,
 316                                                 "\nMessage Digest commands (see the `dgst' command for more details)\n");
 317                                         }
 318                                 else if (tp == FUNC_TYPE_CIPHER)
 319                                         {
 320                                         i=1;
 321                                         BIO_printf(bio_err,"\nCipher commands (see the `enc' command for more details)\n");
 322                                         }
 323                                 }
 324                         BIO_printf(bio_err,"%-15s",fp->name);
 325                         }
 326                 BIO_printf(bio_err,"\n\n");
 327                 ret=0;
 328                 }
 329 end:
 330         return(ret);
 331         }
 332
 333 static int SortFnByName(const void *_f1,const void *_f2)
 334     {
 335     const FUNCTION *f1=_f1;
 336     const FUNCTION *f2=_f2;
 337
 338     if(f1->type != f2->type)
 339         return f1->type-f2->type;
 340     return strcmp(f1->name,f2->name);
 341     }
 342
 343 static LHASH *prog_init(void)
 344         {
 345         LHASH *ret;
 346         FUNCTION *f;
 347         int i;
 348
 349         /* Purely so it looks nice when the user hits ? */
 350         for(i=0,f=functions ; f->name != NULL ; ++f,++i)
 351             ;
 352         qsort(functions,i,sizeof *functions,SortFnByName);
 353
 354         if ((ret=lh_new((LHASH_HASH_FN_TYPE)hash,
 355                         (LHASH_COMP_FN_TYPE)cmp)) == NULL)
 356                 return(NULL);
 357
 358         for (f=functions; f->name != NULL; f++)
 359                 lh_insert(ret,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         }