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

   1
   2 #include <sys/types.h>
   3
   4 #include <limits.h>
   5 #include <signal.h>
   6 #include <string.h>
   7 #include <stdio.h>
   8 #include <string.h>
   9
  10 #define TEST_NAME "sodium_utils3"
  11 #include "cmptest.h"
  12
  13 static void
  14 segv_handler(int sig)
  15 {
  16     printf("Intentional segfault / bus error caught\n");
  17     printf("OK\n");
  18 #ifdef SIGSEGV
  19     signal(SIGSEGV, SIG_DFL);
  20 #endif
  21 #ifdef SIGBUS
  22     signal(SIGBUS, SIG_DFL);
  23 #endif
  24 #ifdef SIGABRT
  25     signal(SIGABRT, SIG_DFL);
  26 #endif
  27     exit(0);
  28 }
  29
  30 int
  31 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     sodium_mprotect_noaccess(buf);
  48     sodium_mprotect_readwrite(buf);
  49     sodium_memzero(((unsigned char *) buf) - 8, 8U);
  50     sodium_mprotect_readonly(buf);
  51     sodium_free(buf);
  52     printf("Underflow not caught\n");
  53
  54     return 0;
  55 }