| 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 | |
| 14 | int 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 | |