[Toybox] [PATCH 3/5] Add new toy - chmod.
Georgi Chorbadzhiyski
gf at unixsol.org
Wed Mar 7 00:15:58 PST 2012
---
toys/chmod.c | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 58 insertions(+), 0 deletions(-)
create mode 100644 toys/chmod.c
diff --git a/toys/chmod.c b/toys/chmod.c
new file mode 100644
index 0000000..d681d50
--- /dev/null
+++ b/toys/chmod.c
@@ -0,0 +1,58 @@
+/* vi: set sw=4 ts=4:
+ *
+ * chmod.c - Change file mode bits
+ *
+ * Copyright 2012 Georgi Chorbadzhiyski <georgi at unixsol.org>
+ *
+ * See http://pubs.opengroup.org/onlinepubs/009695399/utilities/chmod.html
+ *
+
+USE_CHMOD(NEWTOY(chmod, "<2Rfv", TOYFLAG_BIN))
+
+config CHMOD
+ bool "chmod"
+ default y
+ help
+ usage: chmod [-R] [-f] [-v] mode file...
+ Change mode bits of one or more files.
+
+ -R recurse into subdirectories.
+ -f suppress most error messages.
+ -v verbose output.
+*/
+
+#include "toys.h"
+
+#define FLAG_R 4
+#define FLAG_f 2
+#define FLAG_v 1
+
+DEFINE_GLOBALS(
+ long mode;
+)
+
+#define TT this.chmod
+
+static int do_chmod(char *path) {
+ int ret = chmod(path, TT.mode);
+ if (toys.optflags & FLAG_v)
+ xprintf("chmod(%04o, %s)\n", TT.mode, path);
+ if (ret == -1 && !(toys.optflags & FLAG_f))
+ perror_msg("changing perms of '%s' to %04o", path, TT.mode);
+ toys.exitval |= ret;
+ return ret;
+}
+
+void chmod_main(void)
+{
+ char **s;
+ TT.mode = strtoul(*toys.optargs, NULL, 8);
+
+ for (s=toys.optargs + 1; *s; s++) {
+ if (toys.optflags & FLAG_R) {
+ dirtree_for_each(*s, do_chmod);
+ } else {
+ do_chmod(*s);
+ }
+ }
+}
--
1.7.5.1
1331108158.0
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