1// REQUIRES: sunrpc
2
3// RUN: %clangxx_msan -g -O0 %s -o %t && \
4// RUN: %run %t 2>&1
5// RUN: %clangxx_msan -g -O0 -DUNINIT=1 %s -o %t && \
6// RUN: not %run %t 2>&1 | FileCheck %s
7
8#include <assert.h>
9#include <string.h>
10#include <rpc/xdr.h>
11
12#include <sanitizer/msan_interface.h>
13
14int main(int argc, char *argv[]) {
15 XDR xdrs;
16 char buf[100];
17 xdrmem_create(&xdrs, buf, sizeof(buf), XDR_ENCODE);
18 char s[20];
19#ifndef UNINIT
20 strcpy(dest: s, src: "hello");
21#endif
22 char *sp = s;
23 bool_t res = xdr_string(&xdrs, &sp, sizeof(s));
24 // CHECK: MemorySanitizer: use-of-uninitialized-value
25 // CHECK: {{in main.*sunrpc_string.cpp:}}[[@LINE-2]]
26 assert(res == TRUE);
27 xdr_destroy(&xdrs);
28
29 xdrmem_create(&xdrs, buf, sizeof(buf), XDR_DECODE);
30 char s2[20];
31 char *sp2 = s2;
32 res = xdr_string(&xdrs, &sp2, sizeof(s2));
33 assert(res == TRUE);
34 assert(strcmp(s, s2) == 0);
35 xdr_destroy(&xdrs);
36 return 0;
37}
38

source code of compiler-rt/test/msan/Linux/sunrpc_string.cpp