112 lines
3.2 KiB
C
112 lines
3.2 KiB
C
/*
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*
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***** BEGIN LICENSE BLOCK *****
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Copyright (C) 2024 Olof Hagsand
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This file is part of CLIXON.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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Alternatively, the contents of this file may be used under the terms of
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the GNU General Public License Version 3 or later (the "GPL"),
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in which case the provisions of the GPL are applicable instead
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of those above. If you wish to allow use of your version of this file only
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under the terms of the GPL, and not to allow others to
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use your version of this file under the terms of Apache License version 2,
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indicate your decision by deleting the provisions above and replace them with
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the notice and other provisions required by the GPL. If you do not delete
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the provisions above, a recipient may use your version of this file under
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the terms of any one of the Apache License version 2 or the GPL.
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***** END LICENSE BLOCK *****
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*/
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#ifdef HAVE_CONFIG_H
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#include "clixon_config.h" /* generated by config & autoconf */
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#endif
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#include <stdlib.h>
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#include <errno.h>
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#include <string.h>
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#include <openssl/sha.h>
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/* cligen */
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#include <cligen/cligen.h>
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/* clixon */
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#include "clixon_queue.h"
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#include "clixon_hash.h"
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#include "clixon_handle.h"
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#include "clixon_yang.h"
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#include "clixon_xml.h"
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#include "clixon_err.h"
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#include "clixon_digest.h"
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/*! Given null-terminated string, return malloced NULL_terinated SHA digest string in hex
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*
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* @param[in] str Input null-terminated string
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* @param[out] hexstrp Output null-terminated digest HEX string
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* @retval 0 OK
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* @retval -1 Error
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*/
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int
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clixon_digest_hex(const char *str,
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char **hexstrp)
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{
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int retval = -1;
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unsigned char *md = NULL;
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cbuf *cb = NULL;
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int i;
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uint32_t len;
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#ifdef USE_SHA256
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len = SHA256_DIGEST_LENGTH;
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#else
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len = SHA_DIGEST_LENGTH;
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#endif
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if (str == NULL || hexstrp == NULL){
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clixon_err(OE_UNIX, EINVAL, "str or hexstr is NULL");
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return -1;
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}
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if ((md = calloc(len, sizeof(unsigned char))) == NULL){
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clixon_err(OE_UNIX, errno, "calloc");
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goto done;
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}
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#ifdef USE_SHA256
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if (SHA256((unsigned char *)str, strlen(str), md) == NULL)
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#else
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if (SHA1((unsigned char *)str, strlen(str), md) == NULL)
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#endif
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{
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clixon_err(OE_UNIX, 0, "SHA256 error");
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goto done;
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}
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if ((cb = cbuf_new()) == NULL){
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clixon_err(OE_XML, errno, "cbuf_new");
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goto done;
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}
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for (i = 0; i < len; i++)
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cprintf(cb, "%02x", md[i]&0xff);
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if ((*hexstrp = strdup(cbuf_get(cb))) == NULL){
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clixon_err(OE_UNIX, errno, "strdup");
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goto done;
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}
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retval = 0;
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done:
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if (cb)
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cbuf_free(cb);
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if (md)
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free(md);
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return retval;
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}
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