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26 lines
821 B
26 lines
821 B
4 months ago
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// Test haystack overflow in strcasestr function
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// RUN: %clang_asan %s -o %t && %env_asan_opts=strict_string_checks=true not %run %t 2>&1 | FileCheck %s
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// Test intercept_strstr asan option
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// Disable other interceptors because strlen may be called inside strcasestr
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// RUN: %env_asan_opts=intercept_strstr=false:replace_str=false %run %t 2>&1
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// There's no interceptor for strcasestr on Windows
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// XFAIL: windows-msvc
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#define _GNU_SOURCE
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#include <assert.h>
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#include <string.h>
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#include <sanitizer/asan_interface.h>
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int main(int argc, char **argv) {
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char *r = 0;
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char s2[] = "c";
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char s1[4] = "abC";
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__asan_poison_memory_region ((char *)&s1[2], 2);
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r = strcasestr(s1, s2);
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// CHECK:'s1'{{.*}} <== Memory access at offset {{[0-9]+}} partially overflows this variable
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assert(r == s1 + 2);
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return 0;
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}
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