mirror of
https://github.com/guanzhi/GmSSL.git
synced 2026-05-07 00:46:17 +08:00
77
src/rand.c
77
src/rand.c
@@ -1,5 +1,5 @@
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/*
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* Copyright 2014-2022 The GmSSL Project. All Rights Reserved.
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* Copyright 2022 The GmSSL Project. All Rights Reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the License); you may
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* not use this file except in compliance with the License.
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@@ -7,41 +7,40 @@
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* http://www.apache.org/licenses/LICENSE-2.0
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <gmssl/rand.h>
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#include <gmssl/error.h>
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#define RAND_MAX_BUF_SIZE 4096
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int rand_bytes(uint8_t *buf, size_t len)
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{
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FILE *fp;
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if (!buf) {
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error_print();
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return -1;
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}
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if (len > RAND_MAX_BUF_SIZE) {
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error_print();
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return -1;
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}
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if (!len) {
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return 0;
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}
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if (!(fp = fopen("/dev/urandom", "rb"))) {
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error_print();
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return -1;
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}
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if (fread(buf, 1, len, fp) != len) {
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error_print();
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fclose(fp);
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return -1;
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}
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fclose(fp);
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return 1;
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}
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <gmssl/rand.h>
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#include <gmssl/error.h>
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#define RAND_MAX_BUF_SIZE 4096
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int rand_bytes(uint8_t *buf, size_t len)
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{
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FILE *fp;
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if (!buf) {
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error_print();
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return -1;
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}
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if (len > RAND_MAX_BUF_SIZE) {
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error_print();
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return -1;
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}
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if (!len) {
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return 0;
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}
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if (!(fp = fopen("/dev/urandom", "rb"))) {
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error_print();
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return -1;
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}
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if (fread(buf, 1, len, fp) != len) {
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error_print();
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fclose(fp);
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return -1;
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}
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fclose(fp);
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return 1;
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}
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