sodium_utils2.c

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    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_utils2"
    9 #include "cmptest.h"
   10 
   11 #ifdef __SANITIZE_ADDRESS__
   12 # warning The sodium_utils2 test is expected to fail with address sanitizer
   13 #endif
   14 
   15 #undef sodium_malloc
   16 #undef sodium_free
   17 #undef sodium_allocarray
   18 
   19 __attribute__((noreturn)) static void
   20 segv_handler(int sig)
   21 {
   22     (void) sig;
   23 
   24     printf("Intentional segfault / bus error caught\n");
   25     printf("OK\n");
   26 #ifdef SIGSEGV
   27     signal(SIGSEGV, SIG_DFL);
   28 #endif
   29 #ifdef SIGBUS
   30     signal(SIGBUS, SIG_DFL);
   31 #endif
   32 #ifdef SIGABRT
   33     signal(SIGABRT, SIG_DFL);
   34 #endif
   35     exit(0);
   36 }
   37 
   38 int
   39 main(void)
   40 {
   41     void *       buf;
   42     size_t       size;
   43     unsigned int i;
   44 
   45     if (sodium_malloc(SIZE_MAX - 1U) != NULL) {
   46         return 1;
   47     }
   48     if (sodium_malloc(0U) == NULL) {
   49         return 1;
   50     }
   51     if (sodium_allocarray(SIZE_MAX / 2U + 1U, SIZE_MAX / 2U) != NULL) {
   52         return 1;
   53     }
   54     sodium_free(sodium_allocarray(0U, 0U));
   55     sodium_free(sodium_allocarray(0U, 1U));
   56     sodium_free(sodium_allocarray(1U, 0U));
   57 
   58     buf = sodium_allocarray(1000U, 50U);
   59     memset(buf, 0, 50000U);
   60     sodium_free(buf);
   61 
   62     sodium_free(sodium_malloc(0U));
   63     sodium_free(NULL);
   64     for (i = 0U; i < 10000U; i++) {
   65         size = 1U + randombytes_uniform(100000U);
   66         buf  = sodium_malloc(size);
   67         assert(buf != NULL);
   68         memset(buf, i, size);
   69         sodium_mprotect_noaccess(buf);
   70         sodium_free(buf);
   71     }
   72     printf("OK\n");
   73 
   74 #ifdef SIGSEGV
   75     signal(SIGSEGV, segv_handler);
   76 #endif
   77 #ifdef SIGBUS
   78     signal(SIGBUS, segv_handler);
   79 #endif
   80 #ifdef SIGABRT
   81     signal(SIGABRT, segv_handler);
   82 #endif
   83     size = 1U + randombytes_uniform(100000U);
   84     buf  = sodium_malloc(size);
   85     assert(buf != NULL);
   86 
   87 /* old versions of asan emit a warning because they don't support mlock*() */
   88 #ifndef __SANITIZE_ADDRESS__
   89     sodium_mprotect_readonly(buf);
   90     sodium_mprotect_readwrite(buf);
   91 #endif
   92 
   93 #if defined(HAVE_CATCHABLE_SEGV) && !defined(__EMSCRIPTEN__) && !defined(__SANITIZE_ADDRESS__)
   94     sodium_memzero(((unsigned char *) buf) + size, 1U);
   95     sodium_mprotect_noaccess(buf);
   96     sodium_free(buf);
   97     printf("Overflow not caught\n");
   98 #else
   99     segv_handler(0);
  100 #endif
  101     return 0;
  102 }

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FreeBSD/Linux Kernel Cross Reference sys/contrib/libsodium/test/default/sodium_utils2.c

FreeBSD/Linux Kernel Cross Reference
sys/contrib/libsodium/test/default/sodium_utils2.c