1 /* vi: set sw=4 ts=4: */
3 * wall - write a message to all logged-in users
4 * Copyright (c) 2009 Bernhard Reutner-Fischer
6 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
12 int wall_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
13 int wall_main(int argc UNUSED_PARAM, char **argv)
17 int fd = argv[1] ? xopen(argv[1], O_RDONLY) : STDIN_FILENO;
19 msg = xmalloc_read(fd, NULL);
20 if (ENABLE_FEATURE_CLEAN_UP && argv[1])
23 while ((ut = getutent()) != NULL) {
25 if (ut->ut_type != USER_PROCESS)
27 line = concat_path_file("/dev", ut->ut_line);
28 xopen_xwrite_close(line, msg);
31 if (ENABLE_FEATURE_CLEAN_UP) {