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