forked from OSchip/llvm-project
35 lines
653 B
C++
35 lines
653 B
C++
// RUN: %clangxx_msan -g %s -o %t
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// RUN: not %run %t 2>&1 | FileCheck %s
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// RUN: %t 1
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#include <stdio.h>
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#include <stdlib.h>
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int test_fread() {
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FILE *f = fopen("/dev/zero", "r");
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char c;
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unsigned read = fread(&c, sizeof(c), 1, f);
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fclose(f);
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if (c == '1') // No error
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return 1;
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return 0;
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}
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int test_fwrite() {
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FILE *f = fopen("/dev/null", "w");
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char c;
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if (fwrite(&c, sizeof(c), 1, f) != sizeof(c)) // BOOM
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return 1;
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return fclose(f);
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}
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int main(int argc, char *argv[]) {
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if (argc > 1)
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test_fread();
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else
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test_fwrite();
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return 0;
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}
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// CHECK: Uninitialized bytes in __interceptor_fwrite at offset 0 inside
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