[hackers] [sbase] Simplify code and don't use ftw() for chgrp(1) || sin

[git]

commit 9eb15ff2326a5114644521cb406e3729bddb94d8
Author: sin <s...@2f30.org>
Date:   Tue Oct 8 00:45:25 2013 +0100

    Simplify code and don't use ftw() for chgrp(1)
    
    Fix issue with uninitialized struct stat buffer as well.

diff --git a/chgrp.c b/chgrp.c
index 2035a07..5658f21 100644
--- a/chgrp.c
+++ b/chgrp.c
@@ -1,16 +1,18 @@
 /* See LICENSE file for copyright and license details. */
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
 #include <unistd.h>
-#include <ftw.h>
 #include <errno.h>
 #include <grp.h>
-#include <sys/types.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 #include "util.h"
 
 static int gid;
 static int failures = 0;
+static int rflag = 0;
+static struct stat st;
 
 static void
 usage(void)
@@ -18,25 +20,21 @@ usage(void)
        eprintf("usage: chgrp [-R] groupname file...
");
 }
 
-static int
-chgrp(const char *path, const struct stat *st, int f)
+static void
+chgrp(const char *path)
 {
-       (void)f;
-
-       if(chown(path, st->st_uid, gid) == -1) {
+       if(chown(path, st.st_uid, gid) == -1) {
                fprintf(stderr, "chgrp: '%s': %s
", path, strerror(errno));
                failures++;
        }
-
-       return 0;
+       if (rflag)
+               recurse(path, chgrp);
 }
 
 int
 main(int argc, char **argv)
 {
-       int rflag = 0;
        struct group *gr;
-       struct stat st;
 
        ARGBEGIN {
        case 'R':
@@ -45,20 +43,18 @@ main(int argc, char **argv)
        default:
                usage();
        } ARGEND;
-       if(argc<2)
+
+       if(argc < 2)
                usage();
 
+       errno = 0;
        gr = getgrnam(argv[0]);
-       if(!gr)
+       if (errno)
+               eprintf("getgrnam %s:");
+       else if(!gr)
                eprintf("chgrp: '%s': No such group
", argv[0]);
        gid = gr->gr_gid;
 
-       if(rflag) {
-               while(*++argv)
-                       ftw(*argv, chgrp, FOPEN_MAX);
-
-               return EXIT_SUCCESS;
-       }
        while(*++argv) {
                if(stat(*argv, &st) == -1) {
                        fprintf(stderr, "chgrp: '%s': %s
", *argv,
@@ -66,7 +62,7 @@ main(int argc, char **argv)
                        failures++;
                        continue;
                }
-               chgrp(*argv, &st, 0);
+               chgrp(*argv);
        }
 
        return failures;