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authorGravatar Glenn L McGrath <bug1@ihug.co.nz>2002-09-16 04:21:46 +0000
committerGravatar Glenn L McGrath <bug1@ihug.co.nz>2002-09-16 04:21:46 +0000
commit061c9001763f4a19d8104d5be61bbb09b50b1dae (patch)
tree3942c0a93b5e11fbb838777dba8d3002b17c2583 /init/mesg.c
parentebdc8b48a563615f6e0b08bdf2c91241fed669e0 (diff)
downloadbusybox-061c9001763f4a19d8104d5be61bbb09b50b1dae.tar.gz
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mesg applet by Manuel Novoa III
Diffstat (limited to 'init/mesg.c')
-rw-r--r--init/mesg.c58
1 files changed, 58 insertions, 0 deletions
diff --git a/init/mesg.c b/init/mesg.c
new file mode 100644
index 000000000..f9b46e029
--- /dev/null
+++ b/init/mesg.c
@@ -0,0 +1,58 @@
+/*
+ * mesg implementation for busybox
+ *
+ * Copyright (c) 2002 Manuel Novoa III <mjn3@codepoet.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <unistd.h>
+#include <stdlib.h>
+#include "libbb.h"
+
+#ifdef USE_TTY_GROUP
+#define S_IWGRP_OR_S_IWOTH S_IWGRP
+#else
+#define S_IWGRP_OR_S_IWOTH (S_IWGRP | S_IWOTH)
+#endif
+
+extern int mesg_main(int argc, char *argv[])
+{
+ struct stat sb;
+ char *tty;
+ char c;
+
+ if ((--argc == 0)
+ || ((argc == 1) && (((c = **++argv) == 'y') || (c == 'n')))) {
+ if ((tty = ttyname(STDERR_FILENO)) == NULL) {
+ tty = "ttyname";
+ } else if (stat(tty, &sb) == 0) {
+ if (argc == 0) {
+ puts(((sb.st_mode & (S_IWGRP | S_IWOTH)) ==
+ 0) ? "is n" : "is y");
+ return EXIT_SUCCESS;
+ }
+ if (chmod
+ (tty,
+ (c ==
+ 'y') ? sb.st_mode | (S_IWGRP_OR_S_IWOTH) : sb.
+ st_mode & ~(S_IWGRP | S_IWOTH)) == 0) {
+ return EXIT_SUCCESS;
+ }
+ }
+ perror_msg_and_die("%s", tty);
+ }
+ show_usage();
+}