usr.sbin/pkg_install/sign/main.c

   1 /*-
   2  * Copyright (c) 1999 Marc Espie.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  * 3. All advertising materials mentioning features or use of this software
  13  *    must display the following acknowledgement:
  14  *      This product includes software developed by Marc Espie for the OpenBSD
  15  * Project.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE OPENBSD PROJECT AND CONTRIBUTORS
  18  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  19  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  20  * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OPENBSD
  21  * PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  22  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  23  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  27  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  *
  29  * $OpenBSD: main.c,v 1.2 1999/10/04 21:46:28 espie Exp $
  30  * $FreeBSD: src/usr.sbin/pkg_install/sign/main.c,v 1.2 2002/04/01 09:39:07 obrien Exp $
  31  * $DragonFly: src/usr.sbin/pkg_install/sign/main.c,v 1.3 2004/07/30 06:46:14 dillon Exp $
  32  */
  33
  34 #include <sys/types.h>
  35 #include <sys/wait.h>
  36 #include <stdio.h>
  37 #include <stdlib.h>
  38 #include <unistd.h>
  39 #include <string.h>
  40 #include "stand.h"
  41 #include "gzip.h"
  42 #include "pgp.h"
  43 #include "extern.h"
  44
  45 #ifdef __OpenBSD__
  46 extern char *__progname;
  47 #define argv0   __progname
  48 #else
  49 static char *argv0;
  50 #endif
  51
  52 #define NM_SIGN "pkg_sign"
  53
  54 int verbose = 0;
  55 int quiet = 0;
  56 char *userkey = NULL;
  57
  58 static void
  59 usage()
  60 {
  61         fprintf(stderr, "usage: %s [-sc] [-t type] [-u userid] [-k keyfile] pkg1 ...\n", argv0);
  62         exit(EXIT_FAILURE);
  63 }
  64
  65 #define SIGN 0
  66 #define CHECK 1
  67
  68 /* wrapper for the check_signature function (open file if needed) */
  69 static int
  70 check(filename, type, userid, envp)
  71         /*@observer@*/const char *filename;
  72         int type;
  73         /*@null@*/const char *userid;
  74         char *envp[];
  75 {
  76         int result;
  77         FILE *file;
  78
  79         if (strcmp(filename, "-") == 0)
  80                 return check_signature(stdin, userid, envp, "stdin");
  81         file = fopen(filename, "r");
  82         if (file == NULL) {
  83                 fprintf(stderr, "Can't open %s\n", filename);
  84                 return 0;
  85         }
  86         result = check_signature(file, userid, envp, filename);
  87         if (fclose(file) == 0) {
  88                 if (result == PKG_BADSIG || result == PKG_SIGERROR)
  89                         return 0;
  90                 else
  91                         return 1;
  92         } else
  93                 return 0;
  94 }
  95
  96 int
  97 main(argc, argv, envp)
  98         int argc;
  99         char *argv[];
 100         char *envp[];
 101 {
 102         int success = 1;
 103         int ch;
 104         char *userid = NULL;
 105         int mode;
 106         int i;
 107         int type = TAG_ANY;
 108
 109 /* #ifndef BSD4_4 */
 110         set_program_name(argv[0]);
 111 /* #endif */
 112 #ifdef CHECKER_ONLY
 113         mode = CHECK;
 114 #else
 115 #ifndef __OpenBSD__
 116         if ((argv0 = strrchr(argv[0], '/')) != NULL)
 117                 argv0++;
 118         else
 119                 argv0 = argv[0];
 120 #endif
 121         if (strcmp(argv0, NM_SIGN) == 0)
 122                 mode = SIGN;
 123         else
 124                 mode = CHECK;
 125 #endif
 126
 127         while ((ch = getopt(argc, argv, "t:u:k:qscv")) != -1) {
 128                 switch(ch) {
 129                 case 't':
 130                         if (strcmp(optarg, "pgp") == 0)
 131                                 type = TAG_PGP;
 132                         else if (strcmp(optarg, "sha1") == 0)
 133                                 type = TAG_SHA1;
 134                         else if (strcmp(optarg, "x509") == 0)
 135                                 type = TAG_X509;
 136                         else
 137                                 usage();
 138                         break;
 139                 case 'u':
 140                         userid = strdup(optarg);
 141                         break;
 142
 143                 case 'k':
 144                         userkey = optarg;
 145                         break;
 146
 147                 case 'q':
 148                         quiet = 1;
 149                         break;
 150
 151 #ifndef CHECKER_ONLY
 152                 case 's':
 153                         mode = SIGN;
 154                         break;
 155 #endif
 156                 case 'c':
 157                         mode = CHECK;
 158                         break;
 159
 160                 case 'v':
 161                         verbose = 1;
 162                         break;
 163                 default:
 164                         usage();
 165                 }
 166         }
 167         argc -= optind;
 168         argv += optind;
 169         if (argc == 0) {
 170                 if (mode == CHECK)
 171                         success &= check("-", 0, userid, envp);
 172                 else
 173                         usage();
 174         }
 175
 176 #ifndef CHECKER_ONLY
 177         if (mode == SIGN && type == TAG_ANY)
 178                 type = TAG_PGP;
 179         if (mode == SIGN && type == TAG_PGP)
 180                 handle_pgp_passphrase();
 181 #endif
 182         for (i = 0; i < argc; i++)
 183                 success &= (mode == SIGN ? sign : check)(argv[i], type, userid, envp);
 184         exit(success == 1 ? EXIT_SUCCESS : EXIT_FAILURE);
 185 }