116 lines
2.5 KiB
C
116 lines
2.5 KiB
C
#include <jansson.h>
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#include <string.h>
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#include "util.h"
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static int malloc_called = 0;
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static int free_called = 0;
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static size_t malloc_used = 0;
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/* helpers */
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static void create_and_free_complex_object() {
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json_t *obj;
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obj = json_pack("{s:i,s:n,s:b,s:b,s:{s:s},s:[i,i,i]}", "foo", 42, "bar", "baz", 1,
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"qux", 0, "alice", "bar", "baz", "bob", 9, 8, 7);
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json_decref(obj);
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}
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static void create_and_free_object_with_oom() {
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int i;
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char key[4];
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json_t *obj = json_object();
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for (i = 0; i < 10; i++) {
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snprintf(key, sizeof key, "%d", i);
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json_object_set_new(obj, key, json_integer(i));
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}
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json_decref(obj);
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}
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static void *my_malloc(size_t size) {
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malloc_called = 1;
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return malloc(size);
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}
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static void my_free(void *ptr) {
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free_called = 1;
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free(ptr);
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}
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static void test_simple() {
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json_malloc_t mfunc = NULL;
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json_free_t ffunc = NULL;
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json_set_alloc_funcs(my_malloc, my_free);
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json_get_alloc_funcs(&mfunc, &ffunc);
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create_and_free_complex_object();
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if (malloc_called != 1 || free_called != 1 || mfunc != my_malloc || ffunc != my_free)
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fail("Custom allocation failed");
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}
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static void *oom_malloc(size_t size) {
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if (malloc_used + size > 800)
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return NULL;
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malloc_used += size;
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return malloc(size);
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}
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static void oom_free(void *ptr) {
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free_called++;
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free(ptr);
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}
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static void test_oom() {
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free_called = 0;
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json_set_alloc_funcs(oom_malloc, oom_free);
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create_and_free_object_with_oom();
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if (free_called == 0)
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fail("Allocation with OOM failed");
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}
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/*
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Test the secure memory functions code given in the API reference
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documentation, but by using plain memset instead of
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guaranteed_memset().
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*/
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static void *secure_malloc(size_t size) {
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/* Store the memory area size in the beginning of the block */
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void *ptr = malloc(size + 8);
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*((size_t *)ptr) = size;
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return (char *)ptr + 8;
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}
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static void secure_free(void *ptr) {
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size_t size;
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ptr = (char *)ptr - 8;
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size = *((size_t *)ptr);
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/*guaranteed_*/ memset(ptr, 0, size + 8);
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free(ptr);
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}
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static void test_secure_funcs(void) {
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json_set_alloc_funcs(secure_malloc, secure_free);
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create_and_free_complex_object();
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}
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static void test_bad_args(void) {
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/* The result of this test is not crashing. */
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json_get_alloc_funcs(NULL, NULL);
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}
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static void run_tests() {
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test_simple();
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test_secure_funcs();
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test_oom();
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test_bad_args();
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}
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