mirror of
https://github.com/sheumann/hush.git
synced 2024-10-29 20:27:40 +00:00
46 lines
978 B
C
46 lines
978 B
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* mesg implementation for busybox
|
|
*
|
|
* Copyright (c) 2002 Manuel Novoa III <mjn3@codepoet.org>
|
|
*
|
|
* Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
|
|
*/
|
|
|
|
#include "busybox.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
|
|
|
|
int mesg_main(int argc, char *argv[])
|
|
{
|
|
struct stat sb;
|
|
const char *tty;
|
|
char c = 0;
|
|
|
|
if (--argc == 0
|
|
|| (argc == 1 && ((c = **++argv) == 'y' || c == 'n'))
|
|
) {
|
|
tty = ttyname(STDERR_FILENO);
|
|
if (tty == NULL) {
|
|
tty = "ttyname";
|
|
} else if (stat(tty, &sb) == 0) {
|
|
mode_t m;
|
|
if (argc == 0) {
|
|
puts((sb.st_mode & (S_IWGRP|S_IWOTH)) ? "is y" : "is n");
|
|
return EXIT_SUCCESS;
|
|
}
|
|
m = (c == 'y') ? sb.st_mode | S_IWGRP_OR_S_IWOTH
|
|
: sb.st_mode & ~(S_IWGRP|S_IWOTH);
|
|
if (chmod(tty, m) == 0) {
|
|
return EXIT_SUCCESS;
|
|
}
|
|
}
|
|
bb_perror_msg_and_die("%s", tty);
|
|
}
|
|
bb_show_usage();
|
|
}
|