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Code to get random bytes in C, cross-platform

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Kovid Goyal
2020-12-31 11:26:22 +05:30
parent 72d193e852
commit 3c77290c2c
2 changed files with 37 additions and 0 deletions
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kitty/disk-cache.c
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@@ -10,6 +10,7 @@
#include "disk-cache.h"
#include "uthash.h"
#include "loop-utils.h"
#include "cross-platform-random.h"
#include <stdlib.h>
#include <sys/stat.h>
#include <fcntl.h>
@@ -186,6 +187,7 @@ add_to_disk_cache(PyObject *self_, const void *key, size_t key_sz, const uint8_t
if (s == NULL) {
s = calloc(1, sizeof(CacheEntry));
if (!s) { PyErr_NoMemory(); goto end; }
if (!secure_random_bytes(s->encryption_key, sizeof(s->encryption_key))) { free(s); PyErr_SetFromErrno(PyExc_OSError); goto end; }
s->hash_key = malloc(key_sz);
if (!s->hash_key) { free(s); PyErr_NoMemory(); goto end; }
s->hash_keylen = key_sz;