winsup/utils/getfacl.c

   1
   2 #include <pwd.h>
   3 #include <grp.h>
   4 #include <stdio.h>
   5 #include <unistd.h>
   6 #include <getopt.h>
   7 #include <sys/types.h>
   8 #include <sys/acl.h>
   9 #include <sys/stat.h>
  10
  11 char *
  12 permstr (mode_t perm)
  13 {
  14   static char pbuf[4];
  15
  16   pbuf[0] = (perm & S_IREAD) ? 'r' : '-';
  17   pbuf[1] = (perm & S_IWRITE) ? 'w' : '-';
  18   pbuf[2] = (perm & S_IEXEC) ? 'x' : '-';
  19   pbuf[3] = '\0';
  20   return pbuf;
  21 }
  22
  23 #if 0
  24 char *
  25 username (uid_t uid)
  26 {
  27   static char ubuf[256];
  28   struct passwd *pw;
  29
  30   if (pw = getpwuid (uid))
  31     strcpy (ubuf, pw->pw_name);
  32   else
  33     strcpy (ubuf, "<unknown>");
  34 }
  35
  36 char *
  37 groupname (gid_t gid)
  38 {
  39   static char gbuf[256];
  40   struct group *gr;
  41
  42   if (gr = getgruid (gid))
  43     strcpy (gbuf, gr->gr_name);
  44   else
  45     strcpy (gbuf, "<unknown>");
  46 }
  47 #endif
  48
  49 int
  50 main (int argc, char **argv)
  51 {
  52   extern int optind;
  53   int c, i;
  54   int aopt = 0;
  55   int dopt = 0;
  56   int first = 1;
  57   struct stat st;
  58   aclent_t acls[MAX_ACL_ENTRIES];
  59
  60   while ((c = getopt (argc, argv, "ad")) != EOF)
  61     switch (c)
  62       {
  63       case 'a':
  64         aopt = 1;
  65         break;
  66       case 'd':
  67         dopt = 1;
  68         break;
  69       default:
  70         fprintf (stderr, "usage: %s [-ad] file...\n", argv[0]);
  71         return 1;
  72       }
  73   while ((c = optind++) < argc)
  74     {
  75       if (stat (argv[c], &st))
  76         {
  77           perror (argv[0]);
  78           continue;
  79         }
  80       if (!first)
  81         putchar ('\n');
  82       first = 0;
  83       printf ("# file: %s\n", argv[c]);
  84       printf ("# owner: %d\n", st.st_uid);
  85       printf ("# group: %d\n", st.st_gid);
  86       if ((c = acl (argv[c], GETACL, MAX_ACL_ENTRIES, acls)) < 0)
  87         {
  88           perror (argv[0]);
  89           continue;
  90         }
  91       for (i = 0; i < c; ++i)
  92         {
  93           if (acls[i].a_type & ACL_DEFAULT)
  94             {
  95               if (aopt)
  96                 continue;
  97               printf ("default:");
  98             }
  99           else if (dopt)
 100             continue;
 101           switch (acls[i].a_type & ~ACL_DEFAULT)
 102             {
 103             case USER_OBJ:
 104               printf ("user::");
 105               break;
 106             case USER:
 107               printf ("user:%d:", acls[i].a_id);
 108               break;
 109             case GROUP_OBJ:
 110               printf ("group::");
 111               break;
 112             case GROUP:
 113               printf ("group:%d:", acls[i].a_id);
 114               break;
 115             case CLASS_OBJ:
 116               printf ("mask::");
 117               break;
 118             case OTHER_OBJ:
 119               printf ("other::");
 120               break;
 121             }
 122           printf ("%s\n", permstr (acls[i].a_perm));
 123         }
 124     }
 125   return 0;
 126 }