41 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 unsigned sz = 6;24 bool_t res = xdr_bytes(&xdrs, &sp, &sz, sizeof(s));25 // CHECK: MemorySanitizer: use-of-uninitialized-value26 // CHECK: {{in main.*sunrpc_bytes.cpp:}}[[@LINE-2]]27 assert(res == TRUE);28 xdr_destroy(&xdrs);29 30 xdrmem_create(&xdrs, buf, sizeof(buf), XDR_DECODE);31 char s2[20];32 char *sp2 = s2;33 unsigned sz2;34 res = xdr_bytes(&xdrs, &sp2, &sz2, sizeof(s2));35 assert(res == TRUE);36 assert(sz == sz2);37 assert(strcmp(s, s2) == 0);38 xdr_destroy(&xdrs);39 return 0;40}41