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