summaryrefslogtreecommitdiff
path: root/libc/stdio/gets.c
diff options
context:
space:
mode:
Diffstat (limited to 'libc/stdio/gets.c')
-rw-r--r--libc/stdio/gets.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/libc/stdio/gets.c b/libc/stdio/gets.c
new file mode 100644
index 000000000..1badd8152
--- /dev/null
+++ b/libc/stdio/gets.c
@@ -0,0 +1,36 @@
+/* Copyright (C) 2004 Manuel Novoa III <mjn3@codepoet.org>
+ *
+ * GNU Library General Public License (LGPL) version 2 or later.
+ *
+ * Dedicated to Toni. See uClibc/DEDICATION.mjn3 for details.
+ */
+
+#include "_stdio.h"
+
+link_warning(gets, "the 'gets' function is dangerous and should not be used.")
+
+/* UNSAFE FUNCTION -- do not bother optimizing */
+
+char *gets(char *s)
+{
+ register char *p = s;
+ int c;
+ __STDIO_AUTO_THREADLOCK_VAR;
+
+ __STDIO_AUTO_THREADLOCK(stdin);
+
+ /* Note: don't worry about performance here... this shouldn't be used!
+ * Therefore, force actual function call. */
+ while (((c = __getchar_unlocked()) != EOF) && ((*p = c) != '\n')) {
+ ++p;
+ }
+ if ((c == EOF) || (s == p)) {
+ s = NULL;
+ } else {
+ *p = 0;
+ }
+
+ __STDIO_AUTO_THREADUNLOCK(stdin);
+
+ return s;
+}