release/src/router/libsodium/test/default/sodium_utils3.c

   1
   2 #include <stdlib.h>
   3 #include <sys/types.h>
   4
   5 #include <limits.h>
   6 #include <signal.h>
   7
   8 #define TEST_NAME "sodium_utils3"
   9 #include "cmptest.h"
  10
  11 #ifdef __SANITIZE_ADDRESS__
  12 # warning The sodium_utils3 test is expected to fail with address sanitizer
  13 #endif
  14
  15 static void segv_handler(int sig)
  16 {
  17     printf("Intentional segfault / bus error caught\n");
  18     printf("OK\n");
  19 #ifdef SIGSEGV
  20     signal(SIGSEGV, SIG_DFL);
  21 #endif
  22 #ifdef SIGBUS
  23     signal(SIGBUS, SIG_DFL);
  24 #endif
  25 #ifdef SIGABRT
  26     signal(SIGABRT, SIG_DFL);
  27 #endif
  28     exit(0);
  29 }
  30
  31 int main(void)
  32 {
  33     void *buf;
  34     size_t size;
  35
  36 #ifdef SIGSEGV
  37     signal(SIGSEGV, segv_handler);
  38 #endif
  39 #ifdef SIGBUS
  40     signal(SIGBUS, segv_handler);
  41 #endif
  42 #ifdef SIGABRT
  43     signal(SIGABRT, segv_handler);
  44 #endif
  45     size = randombytes_uniform(100000U);
  46     buf = sodium_malloc(size);
  47     assert(buf != NULL);
  48     sodium_mprotect_noaccess(buf);
  49     sodium_mprotect_readwrite(buf);
  50 #ifndef __EMSCRIPTEN__
  51     sodium_memzero(((unsigned char *)buf) - 8, 8U);
  52     sodium_mprotect_readonly(buf);
  53     sodium_free(buf);
  54     printf("Underflow not caught\n");
  55 #endif
  56     return 0;
  57 }