Fix gets problems

1 files changed, 22 insertions, 0 deletions

diff --git a/include/stdio.h b/include/stdio.h
index 5f4495d0d0..48aa765e02 100644
--- a/include/stdio.h
+++ b/include/stdio.h
@@ -5,6 +5,8 @@
 #  include <libio/stdio.h>
 
 /* Now define the internal interfaces.  */
+__BEGIN_DECLS
+
 extern int __fcloseall (void);
 extern int __snprintf (char *__restrict __s, size_t __maxlen,
 		       const char *__restrict __format, ...)
@@ -164,6 +166,26 @@ libc_hidden_proto (__vfprintf_chk)
 libc_hidden_proto (__vasprintf_chk)
 libc_hidden_proto (__vdprintf_chk)
 libc_hidden_proto (__obstack_vprintf_chk)
+
+/* The <stdio.h> header does not include the declaration for gets
+   anymore when compiling with _GNU_SOURCE.  Provide a copy here.  */
+extern char *gets (char *__s);
+#  if __USE_FORTIFY_LEVEL > 0
+extern char *__gets_chk (char *__str, size_t) __wur;
+extern char *__REDIRECT (__gets_warn, (char *__str), gets)
+     __wur __warnattr ("please use fgets or getline instead, gets can't "
+		       "specify buffer size");
+
+__extern_always_inline __wur char *
+gets (char *__str)
+{
+  if (__bos (__str) != (size_t) -1)
+    return __gets_chk (__str, __bos (__str));
+  return __gets_warn (__str);
+}
+#  endif
+
+__END_DECLS
 # endif
 
 #endif