Utilities/cmtar/wrapper.c

   1 /*
   2 **  Copyright 1998-2003 University of Illinois Board of Trustees
   3 **  Copyright 1998-2003 Mark D. Roth
   4 **  All rights reserved.
   5 **
   6 **  wrapper.c - libtar high-level wrapper code
   7 **
   8 **  Mark D. Roth <roth@uiuc.edu>
   9 **  Campus Information Technologies and Educational Services
  10 **  University of Illinois at Urbana-Champaign
  11 */
  12
  13 #include <libtarint/internal.h>
  14
  15 #include <stdio.h>
  16 #include <stdlib.h>
  17
  18 #include <libtar/compat.h>
  19 #if defined(HAVE_SYS_PARAM_H)
  20 #include <sys/param.h>
  21 #endif
  22 #if defined(HAVE_DIRENT_H)
  23 #include <dirent.h>
  24 #else
  25 #include <libtarint/filesystem.h>
  26 #endif
  27 #include <errno.h>
  28
  29 #ifdef HAVE_FNMATCH_H
  30 #include <fnmatch.h>
  31 #endif
  32
  33 #ifdef STDC_HEADERS
  34 # include <string.h>
  35 #endif
  36
  37
  38 int
  39 tar_extract_glob(TAR *t, char *globname, char *prefix)
  40 {
  41   char *filename;
  42   char buf[TAR_MAXPATHLEN];
  43   int i;
  44   char *pathname;
  45
  46   while ((i = th_read(t)) == 0)
  47   {
  48     pathname = th_get_pathname(t);
  49     filename = pathname;
  50
  51     if (fnmatch(globname, filename, FNM_PATHNAME | FNM_PERIOD))
  52     {
  53       if (pathname)
  54         {
  55         free(pathname);
  56         }
  57
  58       if (TH_ISREG(t) && tar_skip_regfile(t))
  59         return -1;
  60       continue;
  61     }
  62
  63     if (t->options & TAR_VERBOSE)
  64       th_print_long_ls(t);
  65
  66     if (prefix != NULL)
  67       snprintf(buf, sizeof(buf), "%s/%s", prefix, filename);
  68     else
  69       strlcpy(buf, filename, sizeof(buf));
  70
  71     if (tar_extract_file(t, filename) != 0)
  72       {
  73       if (pathname)
  74         {
  75         free(pathname);
  76         }
  77       return -1;
  78       }
  79
  80     if (pathname)
  81       {
  82       free(pathname);
  83       }
  84   }
  85
  86   return (i == 1 ? 0 : -1);
  87 }
  88
  89
  90 int
  91 tar_extract_all(TAR *t, char *prefix)
  92 {
  93   char *filename;
  94   char buf[TAR_MAXPATHLEN];
  95   int i;
  96   char *pathname;
  97
  98 #ifdef DEBUG
  99   printf("==> tar_extract_all(TAR *t, \"%s\")\n",
 100          (prefix ? prefix : "(null)"));
 101 #endif
 102
 103   while ((i = th_read(t)) == 0)
 104   {
 105 #ifdef DEBUG
 106     puts("    tar_extract_all(): calling th_get_pathname()");
 107 #endif
 108
 109     pathname = th_get_pathname(t);
 110     filename = pathname;
 111
 112     if (t->options & TAR_VERBOSE)
 113       th_print_long_ls(t);
 114     if (prefix != NULL)
 115       snprintf(buf, sizeof(buf), "%s/%s", prefix, filename);
 116     else
 117       strlcpy(buf, filename, sizeof(buf));
 118
 119     if (pathname)
 120       {
 121       free(pathname);
 122       }
 123
 124 #ifdef DEBUG
 125     printf("    tar_extract_all(): calling tar_extract_file(t, "
 126            "\"%s\")\n", buf);
 127 #endif
 128
 129     if (tar_extract_file(t, buf) != 0)
 130       return -1;
 131   }
 132
 133   return (i == 1 ? 0 : -1);
 134 }
 135
 136
 137 int
 138 tar_append_tree(TAR *t, char *realdir, char *savedir)
 139 {
 140   char realpath[TAR_MAXPATHLEN];
 141   char savepath[TAR_MAXPATHLEN];
 142   size_t plen;
 143 #if defined(HAVE_DIRENT_H)
 144   struct dirent *dent;
 145   DIR *dp;
 146 #else
 147   kwDirEntry * dent;
 148   kwDirectory *dp;
 149 #endif
 150   struct stat s;
 151   strncpy(realpath, realdir, sizeof(realpath));
 152   realpath[sizeof(realpath)-1] = 0;
 153   plen = strlen(realpath);
 154   if ( realpath[plen-1] == '/' )
 155     {
 156     realpath[plen-1] = 0;
 157     }
 158
 159
 160 #ifdef DEBUG
 161   printf("==> tar_append_tree(0x%lx, \"%s\", \"%s\")\n",
 162          t, realdir, (savedir ? savedir : "[NULL]"));
 163 #endif
 164
 165   if (tar_append_file(t, realdir, savedir) != 0)
 166     return -1;
 167
 168 #ifdef DEBUG
 169   puts("    tar_append_tree(): done with tar_append_file()...");
 170 #endif
 171
 172   if ( stat(realpath, &s) != 0 )
 173     {
 174     return -1;
 175     }
 176   if (
 177 #if defined(_WIN32) && !defined(__CYGWIN__)
 178     (s.st_mode & _S_IFDIR) == 0
 179 #else
 180     !S_ISDIR(s.st_mode)
 181 #endif
 182   )
 183     return 0;
 184 #if defined(HAVE_DIRENT_H)
 185   dp = opendir(realdir);
 186 #else
 187   dp = kwOpenDir(realdir);
 188 #endif
 189
 190   if (dp == NULL)
 191   {
 192     if (errno == ENOTDIR)
 193       return 0;
 194     return -1;
 195   }
 196 #if defined(HAVE_DIRENT_H)
 197   while ((dent = readdir(dp)) != NULL)
 198 #else
 199   while ((dent = kwReadDir(dp)) != NULL)
 200 #endif
 201   {
 202     if (strcmp(dent->d_name, ".") == 0 ||
 203         strcmp(dent->d_name, "..") == 0)
 204       continue;
 205
 206     snprintf(realpath, TAR_MAXPATHLEN, "%s/%s", realdir,
 207        dent->d_name);
 208     if (savedir)
 209       snprintf(savepath, TAR_MAXPATHLEN, "%s/%s", savedir,
 210          dent->d_name);
 211
 212 #ifndef WIN32
 213     if (lstat(realpath, &s) != 0)
 214       return -1;
 215 #else
 216     if (stat(realpath, &s) != 0)
 217       return -1;
 218 #endif
 219     if (S_ISDIR(s.st_mode))
 220     {
 221       if (tar_append_tree(t, realpath,
 222               (savedir ? savepath : NULL)) != 0)
 223         return -1;
 224       continue;
 225     }
 226
 227     if (tar_append_file(t, realpath,
 228             (savedir ? savepath : NULL)) != 0)
 229       return -1;
 230   }
 231
 232 #if defined(HAVE_DIRENT_H)
 233   closedir(dp);
 234 #else
 235   kwCloseDir(dp);
 236 #endif
 237
 238   return 0;
 239 }
 240
 241