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 bool_t res = xdr_string(&xdrs, &sp, sizeof(s)); 22 // CHECK: MemorySanitizer: use-of-uninitialized-value 23 // CHECK: {{in main.*sunrpc_string.cc:}}[[@LINE-2]] 24 assert(res == TRUE); 25 xdr_destroy(&xdrs); 26 27 xdrmem_create(&xdrs, buf, sizeof(buf), XDR_DECODE); 28 char s2[20]; 29 char *sp2 = s2; 30 res = xdr_string(&xdrs, &sp2, sizeof(s2)); 31 assert(res == TRUE); 32 assert(strcmp(s, s2) == 0); 33 xdr_destroy(&xdrs); 34 return 0; 35 } 36