38 lines · cpp
1// REQUIRES: sunrpc2 3// RUN: %clangxx_msan -g -O0 %s -o %t && \4// RUN: %run %t 2>&15// RUN: %clangxx_msan -g -O0 -DUNINIT=1 %s -o %t && \6// RUN: not %run %t 2>&1 | FileCheck %s7 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 UNINIT20 strcpy(s, "hello");21#endif22 char *sp = s;23 bool_t res = xdr_string(&xdrs, &sp, sizeof(s));24 // CHECK: MemorySanitizer: use-of-uninitialized-value25 // 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