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// RUN: %clangxx_asan -g %s -o %t
// RUN: echo data > %t-testdata
// RUN: not %run %t 1 %t-testdata 2>&1 | FileCheck %s --check-prefix=CHECK-FGETS
// RUN: not %run %t 2 2>&1 | FileCheck %s --check-prefix=CHECK-FPUTS
// RUN: not %run %t 3 2>&1 | FileCheck %s --check-prefix=CHECK-PUTS
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int test_fgets(const char *testfile) {
char buf[2];
FILE *fp = fopen(testfile, "r");
assert(fp);
fgets(buf, sizeof(buf) + 1, fp); // BOOM
fclose(fp);
return 0;
}
int test_fputs() {
char buf[1] = {'x'}; // Note: not nul-terminated
FILE *fp = fopen("/dev/null", "w");
assert(fp);
fputs(buf, fp); // BOOM
fclose(fp);
return 0;
}
int test_puts() {
char *p = strdup("x");
free(p);
puts(p); // BOOM
return 0;
}
int main(int argc, char *argv[]) {
assert(argc >= 2);
int testno = argv[1][0] - '0';
if (testno == 1) {
assert(argc == 3);
return test_fgets(argv[2]);
}
if (testno == 2)
return test_fputs();
if (testno == 3)
return test_puts();
return 1;
}
// CHECK-FGETS: {{.*ERROR: AddressSanitizer: stack-buffer-overflow}}
// CHECK-FGETS: #{{.*}} in {{(wrap_|__interceptor_)?}}fgets
// CHECK-FPUTS: {{.*ERROR: AddressSanitizer: stack-buffer-overflow}}
// CHECK-FPUTS: #{{.*}} in {{(wrap_|__interceptor_)?}}fputs
// CHECK-PUTS: {{.*ERROR: AddressSanitizer: heap-use-after-free}}
// CHECK-PUTS: #{{.*}} in {{(wrap_|__interceptor_)?}}puts
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