mirror of
https://github.com/guanzhi/GmSSL.git
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148 lines
2.9 KiB
C
148 lines
2.9 KiB
C
/*
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* Copyright 2014-2023 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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*
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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 <stdint.h>
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#include <assert.h>
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#include <gmssl/sm2.h>
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#include <gmssl/oid.h>
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#include <gmssl/pem.h>
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#include <gmssl/asn1.h>
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#include <gmssl/x509_str.h>
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#include <gmssl/x509_req.h>
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#include <gmssl/x509.h>
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#include <gmssl/error.h>
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#include <gmssl/file.h>
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#include <errno.h>
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#include <sys/stat.h>
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/*
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DirectoryString ::= CHOICE {
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teletexString TeletexString (SIZE (1..MAX)),
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printableString PrintableString (SIZE (1..MAX)),
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universalString UniversalString (SIZE (1..MAX)),
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utf8String UTF8String (SIZE (1..MAX)),
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bmpString BMPString (SIZE (1..MAX)) }
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BMPString has zeros!
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"Cert" in BMPStirng is 00 43 00 65 00 72 00 74
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RDN 中很多值都是这个类型，但是有特定的长度限制，因此这个函数应该增加一个长度限制选项。
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*/
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int x509_cert_new_from_file(uint8_t **out, size_t *outlen, const char *file)
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{
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int ret = -1;
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FILE *fp = NULL;
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size_t fsize;
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uint8_t *buf = NULL;
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size_t buflen;
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if (!(fp = fopen(file, "r"))
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|| file_size(fp, &fsize) != 1
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|| (buflen = (fsize * 3)/4 + 1) < 0
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|| (buf = malloc((fsize * 3)/4 + 1)) == NULL) {
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error_print();
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goto end;
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}
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if (x509_cert_from_pem(buf, outlen, buflen, fp) != 1) {
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error_print();
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goto end;
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}
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*out = buf;
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buf = NULL;
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ret = 1;
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end:
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if (fp) fclose(fp);
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if (buf) free(buf);
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return ret;
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}
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int x509_certs_new_from_file(uint8_t **out, size_t *outlen, const char *file)
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{
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int ret = -1;
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FILE *fp = NULL;
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size_t fsize;
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uint8_t *buf = NULL;
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size_t buflen;
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if (!(fp = fopen(file, "r"))
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|| file_size(fp, &fsize) != 1
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|| (buflen = (fsize * 3)/4 + 1) < 0
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|| (buf = malloc((fsize * 3)/4 + 1)) == NULL) {
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error_print();
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goto end;
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}
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if (x509_certs_from_pem(buf, outlen, buflen, fp) != 1) {
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error_print();
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goto end;
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}
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*out = buf;
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buf = NULL;
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ret = 1;
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end:
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if (fp) fclose(fp);
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if (buf) free(buf);
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return ret;
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}
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int x509_req_new_from_pem(uint8_t **out, size_t *outlen, FILE *fp)
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{
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uint8_t *req;
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size_t reqlen;
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size_t maxlen;
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if (!out || !outlen || !fp) {
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error_print();
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return -1;
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}
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if (file_size(fp, &maxlen) != 1) {
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error_print();
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return -1;
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}
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if (!(req = malloc(maxlen))) {
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error_print();
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return -1;
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}
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if (x509_req_from_pem(req, &reqlen, maxlen, fp) != 1) {
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free(req);
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error_print();
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return -1;
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}
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*out = req;
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*outlen = reqlen;
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return 1;
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}
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int x509_req_new_from_file(uint8_t **req, size_t *reqlen, const char *file)
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{
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FILE *fp = NULL;
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if (!(fp = fopen(file, "rb"))) {
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error_print();
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return -1;
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}
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if (x509_req_new_from_pem(req, reqlen, fp) != 1) {
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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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