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
main(int argc,char * argv[])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