From 36c49e3f258dced101949edabd72e9bc3f1dedc4 Mon Sep 17 00:00:00 2001
From: dim <dim@FreeBSD.org>
Date: Fri, 17 Sep 2010 15:54:40 +0000
Subject: Vendor import of clang r114020 (from the release_28 branch):
 http://llvm.org/svn/llvm-project/cfe/branches/release_28@114020

Approved by:	rpaulo (mentor)
---
 test/Sema/format-strings-scanf.c | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 test/Sema/format-strings-scanf.c

(limited to 'test/Sema/format-strings-scanf.c')

diff --git a/test/Sema/format-strings-scanf.c b/test/Sema/format-strings-scanf.c
new file mode 100644
index 0000000..42b6c03
--- /dev/null
+++ b/test/Sema/format-strings-scanf.c
@@ -0,0 +1,34 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -Wformat-nonliteral %s
+
+typedef __typeof(sizeof(int)) size_t;
+typedef struct _FILE FILE;
+typedef __WCHAR_TYPE__ wchar_t;
+
+int fscanf(FILE * restrict, const char * restrict, ...) ;
+int scanf(const char * restrict, ...) ;
+int sscanf(const char * restrict, const char * restrict, ...) ;
+
+void test(const char *s, int *i) {
+  scanf(s, i); // expected-warning{{ormat string is not a string literal}}
+  scanf("%0d", i); // expected-warning{{zero field width in scanf format string is unused}}
+  scanf("%00d", i); // expected-warning{{zero field width in scanf format string is unused}}
+  scanf("%d%[asdfasdfd", i, s); // expected-warning{{no closing ']' for '%[' in scanf format string}}
+
+  unsigned short s_x;
+  scanf ("%" "hu" "\n", &s_x); // no-warning
+  scanf("%y", i); // expected-warning{{invalid conversion specifier 'y'}}
+  scanf("%%"); // no-warning
+  scanf("%%%1$d", i); // no-warning
+  scanf("%1$d%%", i); // no-warning
+  scanf("%d", i, i); // expected-warning{{data argument not used by format string}}
+  scanf("%*d", i); // // expected-warning{{data argument not used by format string}}
+  scanf("%*d", i); // // expected-warning{{data argument not used by format string}}
+  scanf("%*d%1$d", i); // no-warning
+}
+
+void bad_length_modifiers(char *s, void *p, wchar_t *ws, long double *ld) {
+  scanf("%hhs", "foo"); // expected-warning{{length modifier 'hh' results in undefined behavior or no effect with 's' conversion specifier}}
+  scanf("%1$zp", p); // expected-warning{{length modifier 'z' results in undefined behavior or no effect with 'p' conversion specifier}}
+  scanf("%ls", ws); // no-warning
+  scanf("%#.2Lf", ld); // expected-warning{{invalid conversion specifier '#'}}
+}
-- 
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