[BZ #4745]

2007-07-07  Ulrich Drepper  <drepper@redhat.com>
	[BZ #4745]
	* libio/strops.c (_IO_str_underflow): Clear errno before returning
	EOF.
	* stdio-common/Makefile (tests): Add bug18.
	* stdio-common/bug18.c: New file.

stdio-common/bug18.c

@@ -0,0 +1,42 @@
+#include <assert.h>
+#include <errno.h>
+#include <stdio.h>
+
+
+static int
+do_test (void)
+{
+  printf("setting errno to EINTR\n");
+  errno = EINTR;
+
+  printf("checking sscanf\n");
+
+  char str[] = "7-11";
+  int i, j, n;
+
+  i = j = n = 0;
+  sscanf (str, " %i - %i %n", &i, &j, &n);
+  printf ("found %i-%i (length=%i)\n", i, j, n);
+
+  int result = 0;
+  if (i != 7)
+    {
+      printf ("i is %d, expected 7\n", i);
+      result = 1;
+    }
+  if (j != 11)
+    {
+      printf ("j is %d, expected 11\n", j);
+      result = 1;
+    }
+  if (n != 4)
+    {
+      printf ("n is %d, expected 4\n", j);
+      result = 1;
+    }
+
+  return result;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"