lib/output.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 **  output.c - libtar code to print out tar header blocks
   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 <internal.h>
  14
  15 #include <stdio.h>
  16 #include <stdlib.h>
  17 #include <pwd.h>
  18 #include <grp.h>
  19 #include <time.h>
  20 #include <limits.h>
  21 #include <sys/param.h>
  22
  23 #ifdef STDC_HEADERS
  24 # include <string.h>
  25 #endif
  26
  27
  28 #ifndef _POSIX_LOGIN_NAME_MAX
  29 # define _POSIX_LOGIN_NAME_MAX  9
  30 #endif
  31
  32
  33 void
  34 th_print(TAR *t)
  35 {
  36         puts("\nPrinting tar header:");
  37         printf("  name     = \"%.100s\"\n", t->th_buf.name);
  38         printf("  mode     = \"%.8s\"\n", t->th_buf.mode);
  39         printf("  uid      = \"%.8s\"\n", t->th_buf.uid);
  40         printf("  gid      = \"%.8s\"\n", t->th_buf.gid);
  41         printf("  size     = \"%.12s\"\n", t->th_buf.size);
  42         printf("  mtime    = \"%.12s\"\n", t->th_buf.mtime);
  43         printf("  chksum   = \"%.8s\"\n", t->th_buf.chksum);
  44         printf("  typeflag = \'%c\'\n", t->th_buf.typeflag);
  45         printf("  linkname = \"%.100s\"\n", t->th_buf.linkname);
  46         printf("  magic    = \"%.6s\"\n", t->th_buf.magic);
  47         /*printf("  version  = \"%.2s\"\n", t->th_buf.version); */
  48         printf("  version[0] = \'%c\',version[1] = \'%c\'\n",
  49                t->th_buf.version[0], t->th_buf.version[1]);
  50         printf("  uname    = \"%.32s\"\n", t->th_buf.uname);
  51         printf("  gname    = \"%.32s\"\n", t->th_buf.gname);
  52         printf("  devmajor = \"%.8s\"\n", t->th_buf.devmajor);
  53         printf("  devminor = \"%.8s\"\n", t->th_buf.devminor);
  54         printf("  prefix   = \"%.155s\"\n", t->th_buf.prefix);
  55         printf("  padding  = \"%.12s\"\n", t->th_buf.padding);
  56         printf("  gnu_longname = \"%s\"\n",
  57                (t->th_buf.gnu_longname ? t->th_buf.gnu_longname : "[NULL]"));
  58         printf("  gnu_longlink = \"%s\"\n",
  59                (t->th_buf.gnu_longlink ? t->th_buf.gnu_longlink : "[NULL]"));
  60 }
  61
  62
  63 void
  64 th_print_long_ls(TAR *t)
  65 {
  66         char modestring[12];
  67         struct passwd *pw;
  68         struct group *gr;
  69         uid_t uid;
  70         gid_t gid;
  71         char username[_POSIX_LOGIN_NAME_MAX];
  72         char groupname[_POSIX_LOGIN_NAME_MAX];
  73         time_t mtime;
  74         struct tm *mtm;
  75
  76 #ifdef HAVE_STRFTIME
  77         char timebuf[18];
  78 #else
  79         const char *months[] = {
  80                 "Jan", "Feb", "Mar", "Apr", "May", "Jun",
  81                 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
  82         };
  83 #endif
  84
  85         uid = th_get_uid(t);
  86         pw = getpwuid(uid);
  87         if (pw == NULL)
  88                 snprintf(username, sizeof(username), "%d", uid);
  89         else
  90                 strlcpy(username, pw->pw_name, sizeof(username));
  91
  92         gid = th_get_gid(t);
  93         gr = getgrgid(gid);
  94         if (gr == NULL)
  95                 snprintf(groupname, sizeof(groupname), "%d", gid);
  96         else
  97                 strlcpy(groupname, gr->gr_name, sizeof(groupname));
  98
  99         strmode(th_get_mode(t), modestring);
 100         printf("%.10s %-8.8s %-8.8s ", modestring, username, groupname);
 101
 102         if (TH_ISCHR(t) || TH_ISBLK(t))
 103                 printf(" %3d, %3d ", th_get_devmajor(t), th_get_devminor(t));
 104         else
 105                 printf("%9ld ", (long)th_get_size(t));
 106
 107         mtime = th_get_mtime(t);
 108         mtm = localtime(&mtime);
 109 #ifdef HAVE_STRFTIME
 110         strftime(timebuf, sizeof(timebuf), "%h %e %H:%M %Y", mtm);
 111         printf("%s", timebuf);
 112 #else
 113         printf("%.3s %2d %2d:%02d %4d",
 114                months[mtm->tm_mon],
 115                mtm->tm_mday, mtm->tm_hour, mtm->tm_min, mtm->tm_year + 1900);
 116 #endif
 117
 118         printf(" %s", th_get_pathname(t));
 119
 120         if (TH_ISSYM(t) || TH_ISLNK(t))
 121         {
 122                 if (TH_ISSYM(t))
 123                         printf(" -> ");
 124                 else
 125                         printf(" link to ");
 126                 if ((t->options & TAR_GNU) && t->th_buf.gnu_longlink != NULL)
 127                         printf("%s", t->th_buf.gnu_longlink);
 128                 else
 129                         printf("%.100s", t->th_buf.linkname);
 130         }
 131
 132         putchar('\n');
 133 }
 134
 135