[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/busybox/src/miscutils/wall.c b/ap/app/busybox/src/miscutils/wall.c
new file mode 100644
index 0000000..762f53b
--- /dev/null
+++ b/ap/app/busybox/src/miscutils/wall.c
@@ -0,0 +1,44 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * wall - write a message to all logged-in users
+ * Copyright (c) 2009 Bernhard Reutner-Fischer
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
+ */
+
+//usage:#define wall_trivial_usage
+//usage: "[FILE]"
+//usage:#define wall_full_usage "\n\n"
+//usage: "Write content of FILE or stdin to all logged-in users"
+//usage:
+//usage:#define wall_sample_usage
+//usage: "echo foo | wall\n"
+//usage: "wall ./mymessage"
+
+#include "libbb.h"
+
+int wall_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int wall_main(int argc UNUSED_PARAM, char **argv)
+{
+ struct utmp *ut;
+ char *msg;
+ int fd = argv[1] ? xopen(argv[1], O_RDONLY) : STDIN_FILENO;
+
+ msg = xmalloc_read(fd, NULL);
+ if (ENABLE_FEATURE_CLEAN_UP && argv[1])
+ close(fd);
+ setutent();
+ while ((ut = getutent()) != NULL) {
+ char *line;
+ if (ut->ut_type != USER_PROCESS)
+ continue;
+ line = concat_path_file("/dev", ut->ut_line);
+ xopen_xwrite_close(line, msg);
+ free(line);
+ }
+ if (ENABLE_FEATURE_CLEAN_UP) {
+ endutent();
+ free(msg);
+ }
+ return EXIT_SUCCESS;
+}