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