1 // RUN: %clangxx_msan -g -O0 %s -o %t && \ 2 // RUN: %run %t 2>&1 3 // RUN: %clangxx_msan -g -O0 -DUNINIT=1 %s -o %t && \ 4 // RUN: not %run %t 2>&1 | FileCheck %s 5 6 #include <assert.h> 7 #include <string.h> 8 #include <rpc/xdr.h> 9 10 #include <sanitizer/msan_interface.h> 11 12 int main(int argc, char *argv[]) { 13 XDR xdrs; 14 char buf[100]; 15 xdrmem_create(&xdrs, buf, sizeof(buf), XDR_ENCODE); 16 char s[20]; 17 #ifndef UNINIT 18 strcpy(s, "hello"); 19 #endif 20 char *sp = s; 21 unsigned sz = 6; 22 bool_t res = xdr_bytes(&xdrs, &sp, &sz, sizeof(s)); 23 // CHECK: MemorySanitizer: use-of-uninitialized-value 24 // CHECK: {{in main.*sunrpc_bytes.cc:}}[[@LINE-2]] 25 assert(res == TRUE); 26 xdr_destroy(&xdrs); 27 28 xdrmem_create(&xdrs, buf, sizeof(buf), XDR_DECODE); 29 char s2[20]; 30 char *sp2 = s2; 31 unsigned sz2; 32 res = xdr_bytes(&xdrs, &sp2, &sz2, sizeof(s2)); 33 assert(res == TRUE); 34 assert(sz == sz2); 35 assert(strcmp(s, s2) == 0); 36 xdr_destroy(&xdrs); 37 return 0; 38 } 39
