mirror of
https://github.com/sheumann/hush.git
synced 2024-12-27 16:31:24 +00:00
48 lines
1014 B
C
48 lines
1014 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"
|
|
#include <unistd.h>
|
|
#include <stdlib.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;
|
|
char *tty;
|
|
char c = 0;
|
|
|
|
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;
|
|
}
|
|
}
|
|
bb_perror_msg_and_die("%s", tty);
|
|
}
|
|
bb_show_usage();
|
|
}
|