From: Szabolcs Nagy <nsz@port70.net>
Date: Wed, 27 Aug 2014 12:59:18 +0000 (+0200)
Subject: add fgets-eof regression test
X-Git-Url: http://nsz.repo.hu/git/?p=libc-test;a=commitdiff_plain;h=baa9bfe1879e3f1e717b8e1e11e9412ac9f91424

add fgets-eof regression test
---

diff --git a/src/regression/fgets-eof.c b/src/regression/fgets-eof.c
new file mode 100644
index 0000000..4b3e41f
--- /dev/null
+++ b/src/regression/fgets-eof.c
@@ -0,0 +1,22 @@
+// fgets must not modify the buffer on eof
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "test.h"
+
+#define ASSERT(c) do { if (!(c)) t_error("%s failed\n", #c); } while(0)
+
+int main(void)
+{
+	char buf[] = "test";
+	char s[10];
+	FILE *f;
+
+	ASSERT((f = fmemopen(buf, sizeof buf, "r")) != 0);
+	ASSERT(fgets(s, sizeof s, f) == s);
+	ASSERT(strcmp(s, buf) == 0);
+	ASSERT(fgets(s, sizeof s, f) == 0);
+	if (s[0] != 't')
+		t_error("fgets modified the buffer after eof\n");
+	return t_status;
+}