/*
- digest.c -- Digest handling
- Copyright (C) 2007 Guus Sliepen <guus@tinc-vpn.org>
+ digest.c -- stub digest handling functions
+ Copyright (C) 2007-2022 Guus Sliepen <guus@tinc-vpn.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- $Id$
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "system.h"
#include "digest.h"
-#include "logger.h"
-
-static struct {
- const char *name;
- int algo;
- int nid;
-} digesttable[] = {
- {"none", GCRY_MD_NONE, 0},
- {"sha1", GCRY_MD_SHA1, 64},
- {"sha256", GCRY_MD_SHA256, 672},
- {"sha384", GCRY_MD_SHA384, 673},
- {"sha512", GCRY_MD_SHA512, 674},
-};
-
-static bool nametodigest(const char *name, int *algo) {
- int i;
-
- for(i = 0; i < sizeof digesttable / sizeof *digesttable; i++) {
- if(digesttable[i].name && !strcasecmp(name, digesttable[i].name)) {
- *algo = digesttable[i].algo;
- return true;
- }
- }
-
- return false;
-}
-
-static bool nidtodigest(int nid, int *algo) {
- int i;
-
- for(i = 0; i < sizeof digesttable / sizeof *digesttable; i++) {
- if(nid == digesttable[i].nid) {
- *algo = digesttable[i].algo;
- return true;
- }
- }
-
- return false;
-}
-
-static bool digesttonid(int algo, int *nid) {
- int i;
-
- for(i = 0; i < sizeof digesttable / sizeof *digesttable; i++) {
- if(algo == digesttable[i].algo) {
- *nid = digesttable[i].nid;
- return true;
- }
- }
-
- return false;
-}
-
-static bool digest_open(digest_t *digest, int algo) {
- if(!digesttonid(algo, &digest->nid)) {
- logger(LOG_DEBUG, _("Digest %d has no corresponding nid!"), algo);
- return false;
- }
-
- digest->len = gcry_md_get_algo_dlen(algo);
+#include "xalloc.h"
- return true;
-}
-
-bool digest_open_by_name(digest_t *digest, const char *name) {
- int algo;
+#ifndef DISABLE_LEGACY
- if(!nametodigest(name, &algo)) {
- logger(LOG_DEBUG, _("Unknown digest name '%s'!"), name);
- return false;
- }
-
- return digest_open(digest, algo);
+digest_t *digest_alloc(void) {
+ return xzalloc(sizeof(digest_t));
}
-bool digest_open_by_nid(digest_t *digest, int nid) {
- int algo;
-
- if(!nidtodigest(nid, &algo)) {
- logger(LOG_DEBUG, _("Unknown digest ID %d!"), nid);
- return false;
+void digest_free(digest_t **digest) {
+ if(digest && *digest) {
+ digest_close(*digest);
+ free(*digest);
+ *digest = NULL;
}
-
- return digest_open(digest, algo);
-}
-
-bool digest_open_sha1(digest_t *digest) {
- return digest_open(digest, GCRY_MD_SHA1);
-}
-
-void digest_close(digest_t *digest) {
}
-bool digest_create(digest_t *digest, void *indata, size_t inlen, void *outdata) {
- gcry_md_hash_buffer(digest->algo, outdata, indata, inlen);
- return true;
-}
-
-bool digest_verify(digest_t *digest, void *indata, size_t inlen, void *cmpdata) {
- char outdata[digest->len];
-
- gcry_md_hash_buffer(digest->algo, outdata, indata, inlen);
- return !memcmp(indata, outdata, digest->len);
-}
-
-int digest_get_nid(const digest_t *digest) {
- return digest->nid;
-}
-
-size_t digest_length(const digest_t *digest) {
- return digest->len;
-}
-
-bool digest_active(const digest_t *digest) {
- return digest->algo != GCRY_MD_NONE;
-}
+#endif // DISABLE_LEGACY