sys/src/cmd/chgrp.c

   1 #include <u.h>
   2 #include <libc.h>
   3
   4 int     readgid(char*);
   5 int     uflag;
   6
   7 void
   8 main(int argc, char *argv[])
   9 {
  10         int i;
  11         Dir dir;
  12         char *group;
  13         char *errs;
  14
  15         ARGBEGIN {
  16         default:
  17         usage:
  18                 fprint(2, "usage: chgrp [ -uo ] group file ....\n");
  19                 exits("usage");
  20                 return;
  21         case 'u':
  22         case 'o':
  23                 uflag++;
  24                 break;
  25         } ARGEND
  26         if(argc < 1)
  27                 goto usage;
  28
  29         group = argv[0];
  30         errs = 0;
  31         for(i=1; i<argc; i++){
  32                 nulldir(&dir);
  33                 if(uflag)
  34                         dir.uid = group;
  35                 else
  36                         dir.gid = group;
  37                 if(dirwstat(argv[i], &dir) == -1) {
  38                         fprint(2, "chgrp: can't wstat %s: %r\n", argv[i]);
  39                         errs = "can't wstat";
  40                         continue;
  41                 }
  42         }
  43         exits(errs);
  44 }