mirror of
https://github.com/jedisct1/libsodium.git
synced 2024-12-25 21:15:42 -07:00
78 lines
1.5 KiB
C
78 lines
1.5 KiB
C
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#include <stdlib.h>
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#include <sys/types.h>
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#include <limits.h>
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#ifdef HAVE_CATCHABLE_SEGV
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# include <signal.h>
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#endif
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#ifndef _WIN32
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# include <unistd.h>
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#endif
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#define TEST_NAME "sodium_utils3"
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#include "cmptest.h"
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#ifdef __SANITIZE_ADDRESS__
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# warning The sodium_utils3 test is expected to fail with address sanitizer
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#endif
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__attribute__((noreturn)) static void
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segv_handler(int sig)
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{
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(void) sig;
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printf("Intentional segfault / bus error caught\n");
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printf("OK\n");
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#ifdef SIG_DFL
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# ifdef SIGSEGV
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signal(SIGSEGV, SIG_DFL);
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# endif
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# ifdef SIGBUS
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signal(SIGBUS, SIG_DFL);
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# endif
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# ifdef SIGABRT
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signal(SIGABRT, SIG_DFL);
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# endif
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#endif
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_exit(0);
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}
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int
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main(void)
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{
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void * buf;
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size_t size;
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#ifdef SIG_DFL
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# ifdef SIGSEGV
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signal(SIGSEGV, segv_handler);
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# endif
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# ifdef SIGBUS
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signal(SIGBUS, segv_handler);
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# endif
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# ifdef SIGABRT
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signal(SIGABRT, segv_handler);
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# endif
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#endif
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size = 1U + randombytes_uniform(100000U);
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buf = sodium_malloc(size);
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assert(buf != NULL);
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/* old versions of asan emit a warning because they don't support mlock*() */
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#ifndef __SANITIZE_ADDRESS__
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sodium_mprotect_noaccess(buf);
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sodium_mprotect_readwrite(buf);
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#endif
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#if defined(HAVE_CATCHABLE_SEGV) && !defined(__EMSCRIPTEN__) && !defined(__SANITIZE_ADDRESS__)
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sodium_memzero(((unsigned char *) buf) - 8, 8U);
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sodium_mprotect_readonly(buf);
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sodium_free(buf);
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printf("Underflow not caught\n");
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#else
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segv_handler(0);
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#endif
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return 0;
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}
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