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 __attribute__ ((noreturn)) static void segv_handler(int sig)
  16 {
  17     (void) sig;
  18
  19     printf("Intentional segfault / bus error caught\n");
  20     printf("OK\n");
  21 #ifdef SIGSEGV
  22     signal(SIGSEGV, SIG_DFL);
  23 #endif
  24 #ifdef SIGBUS
  25     signal(SIGBUS, SIG_DFL);
  26 #endif
  27 #ifdef SIGABRT
  28     signal(SIGABRT, SIG_DFL);
  29 #endif
  30     exit(0);
  31 }
  32
  33 int main(void)
  34 {
  35     void *buf;
  36     size_t size;
  37
  38 #ifdef SIGSEGV
  39     signal(SIGSEGV, segv_handler);
  40 #endif
  41 #ifdef SIGBUS
  42     signal(SIGBUS, segv_handler);
  43 #endif
  44 #ifdef SIGABRT
  45     signal(SIGABRT, segv_handler);
  46 #endif
  47     size = 1U + randombytes_uniform(100000U);
  48     buf = sodium_malloc(size);
  49     assert(buf != NULL);
  50     sodium_mprotect_noaccess(buf);
  51     sodium_mprotect_readwrite(buf);
  52 #ifndef __EMSCRIPTEN__
  53     sodium_memzero(((unsigned char *)buf) - 8, 8U);
  54     sodium_mprotect_readonly(buf);
  55     sodium_free(buf);
  56     printf("Underflow not caught\n");
  57 #endif
  58     return 0;
  59 }