usr.sbin/pkg_install/delete/main.c

   1 /*
   2  *
   3  * FreeBSD install - a package for the installation and maintainance
   4  * of non-core utilities.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * Jordan K. Hubbard
  16  * 18 July 1993
  17  *
  18  * This is the delete module.
  19  *
  20  */
  21
  22 #include <sys/cdefs.h>
  23 __FBSDID("$FreeBSD$");
  24
  25 #include <sys/types.h>
  26 #include <sys/stat.h>
  27 #include <getopt.h>
  28 #include <err.h>
  29
  30 #include "lib.h"
  31 #include "delete.h"
  32
  33 char    *Prefix         = NULL;
  34 Boolean CleanDirs       = FALSE;
  35 Boolean Interactive     = FALSE;
  36 Boolean NoDeInstall     = FALSE;
  37 Boolean Recursive       = FALSE;
  38 match_t MatchType       = MATCH_GLOB;
  39
  40 static void usage(void);
  41
  42 static char opts[] = "adDfGhinp:rvxX";
  43 static struct option longopts[] = {
  44         { "all",        no_argument,            NULL,           'a' },
  45         { "clean-dirs", no_argument,            NULL,           'd' },
  46         { "dry-run",    no_argument,            NULL,           'n' },
  47         { "extended",   no_argument,            NULL,           'X' },
  48         { "force",      no_argument,            NULL,           'f' },
  49         { "help",       no_argument,            NULL,           'h' },
  50         { "interactive",no_argument,            NULL,           'i' },
  51         { "prefix",     required_argument,      NULL,           'p' },
  52         { "recursive",  no_argument,            NULL,           'r' },
  53         { "regex",      no_argument,            NULL,           'x' },
  54         { "no-glob",    no_argument,            NULL,           'G' },
  55         { "no-script",  no_argument,            NULL,           'D' },
  56         { "no-scripts", no_argument,            NULL,           'D' },
  57         { "verbose",    no_argument,            NULL,           'v' },
  58         { NULL,         0,                      NULL,           0 },
  59 };
  60
  61 int
  62 main(int argc, char **argv)
  63 {
  64     int ch, error;
  65     char **pkgs, **start;
  66     char *pkgs_split;
  67     const char *tmp;
  68     struct stat stat_s;
  69
  70     pkgs = start = argv;
  71     while ((ch = getopt_long(argc, argv, opts, longopts, NULL)) != -1)
  72         switch(ch) {
  73         case 'v':
  74             Verbose++;
  75             break;
  76
  77         case 'f':
  78             Force = TRUE;
  79             break;
  80
  81         case 'p':
  82             Prefix = optarg;
  83             break;
  84
  85         case 'D':
  86             NoDeInstall = TRUE;
  87             break;
  88
  89         case 'd':
  90             CleanDirs = TRUE;
  91             break;
  92
  93         case 'n':
  94             Fake = TRUE;
  95             Verbose = TRUE;
  96             break;
  97
  98         case 'a':
  99             MatchType = MATCH_ALL;
 100             break;
 101
 102         case 'G':
 103             MatchType = MATCH_EXACT;
 104             break;
 105
 106         case 'x':
 107             MatchType = MATCH_REGEX;
 108             break;
 109
 110         case 'X':
 111             MatchType = MATCH_EREGEX;
 112             break;
 113
 114         case 'i':
 115             Interactive = TRUE;
 116             break;
 117
 118         case 'r':
 119             Recursive = TRUE;
 120             break;
 121
 122         case 'h':
 123         default:
 124             usage();
 125             break;
 126         }
 127
 128     argc -= optind;
 129     argv += optind;
 130
 131     /* Get all the remaining package names, if any */
 132     while (*argv) {
 133         /* Don't try to apply heuristics if arguments are regexs */
 134         if (MatchType != MATCH_REGEX)
 135             while ((pkgs_split = strrchr(*argv, (int)'/')) != NULL) {
 136                 *pkgs_split++ = '\0';
 137                 /*
 138                  * If character after the '/' is alphanumeric, then we've found the
 139                  * package name.  Otherwise we've come across a trailing '/' and
 140                  * need to continue our quest.
 141                  */
 142                 if (isalnum(*pkgs_split) || ((MatchType == MATCH_GLOB) && \
 143                     strpbrk(pkgs_split, "*?[]") != NULL)) {
 144                     *argv = pkgs_split;
 145                     break;
 146                 }
 147             }
 148         *pkgs++ = *argv++;
 149     }
 150
 151     /* If no packages, yelp */
 152     if (pkgs == start && MatchType != MATCH_ALL)
 153         warnx("missing package name(s)"), usage();
 154     *pkgs = NULL;
 155     tmp = LOG_DIR;
 156     (void) stat(tmp, &stat_s);
 157     if (!Fake && getuid() && geteuid() != stat_s.st_uid) {
 158         if (!Force)
 159             errx(1, "you do not own %s, use -f to force", tmp);
 160         else
 161             warnx("you do not own %s (proceeding anyways)", tmp);
 162     }
 163     if ((error = pkg_perform(start)) != 0) {
 164         if (Verbose)
 165             warnx("%d package deletion(s) failed", error);
 166         return error;
 167     }
 168     else
 169         return 0;
 170 }
 171
 172 static void
 173 usage()
 174 {
 175     fprintf(stderr, "%s\n%s\n",
 176         "usage: pkg_delete [-dDfGinrvxX] [-p prefix] pkg-name ...",
 177         "       pkg_delete -a [flags]");
 178     exit(1);
 179 }