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// Test haystack overflow in strcasestr function
// RUN: %clang_asan %s -o %t && ASAN_OPTIONS=$ASAN_OPTIONS:strict_string_checks=true not %run %t 2>&1 | FileCheck %s
// Test intercept_strstr asan option
// Disable other interceptors because strlen may be called inside strcasestr
// RUN: env ASAN_OPTIONS=$ASAN_OPTIONS:intercept_strstr=false:replace_str=false %run %t 2>&1
// There's no interceptor for strcasestr on Windows
// XFAIL: win32
#define _GNU_SOURCE
#include <assert.h>
#include <string.h>
int main(int argc, char **argv) {
char *r = 0;
char s2[] = "c";
char s1[] = {'a', 'C'};
char s3 = 0;
r = strcasestr(s1, s2);
// CHECK:'s{{[1|3]}}' <== Memory access at offset {{[0-9]+ .*}}flows this variable
assert(r == s1 + 1);
return 0;
}
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