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| // RUN: %clangxx_msan -g %s -o %t
// RUN: %run %t
// RUN: not %run %t 2 2>&1 | FileCheck %s --check-prefix=CHECK-FPUTS
// RUN: not %run %t 3 3 2>&1 | FileCheck %s --check-prefix=CHECK-PUTS
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int test_fgets() {
FILE *fp = fopen("/dev/zero", "r");
char c;
if (!fgets(&c, 1, fp))
return 1;
if (c == '1') // No error
return 2;
fclose(fp);
return 0;
}
int test_fputs() {
FILE *fp = fopen("/dev/null", "w");
char buf[2];
fputs(buf, fp); // BOOM
return fclose(fp);
}
void test_puts() {
char buf[2];
puts(buf); // BOOM
}
int main(int argc, char *argv[]) {
if (argc == 1)
test_fgets();
else if (argc == 2)
test_fputs();
else
test_puts();
return 0;
}
// CHECK-FPUTS: Uninitialized bytes in __interceptor_fputs at offset 0 inside
// CHECK-PUTS: Uninitialized bytes in __interceptor_puts at offset 0 inside
|