/*
encr.c -- everything that deals with encryption
- Copyright (C) 1998,1999,2000 Ivo Timmermans <zarq@iname.com>
+ Copyright (C) 1998,1999,2000 Ivo Timmermans <itimmermans@bigfoot.com>
+ 2000 Guus Sliepen <guus@sliepen.warande.net>
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
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: encr.c,v 1.12.4.5 2000/09/15 12:58:38 zarq Exp $
*/
#include "config.h"
mpz_t my_private_key, my_public_key, generator, shared_prime;
int my_key_expiry = (time_t)(-1);
-static char* mypassphrase;
-static int mypassphraselen;
+char* mypassphrase;
+int mypassphraselen;
int char_hex_to_bin(int c)
{
cp
if((cfg = get_config_val(passphrasesdir)) == NULL)
{
- filename = xmalloc(strlen(confbase)+13+strlen(which));
- sprintf(filename, "%spassphrases/%s", confbase, which);
+ asprintf(&filename, "%spassphrases/%s", confbase, which);
}
else
{
- filename = xmalloc(strlen(cfg->data.ptr)+2+strlen(which));
- sprintf(filename, "%s/%s", (char*)cfg->data.ptr, which);
+ asprintf(&filename, "%s/%s", (char*)cfg->data.ptr, which);
}
if((f = fopen(filename, "rb")) == NULL)
{
- syslog(LOG_ERR, _("Could not open %s: %m"), filename);
+ if(debug_lvl > 1)
+ syslog(LOG_ERR, _("Could not open %s: %m"), filename);
return -1;
}
syslog(LOG_ERR, _("Illegal passphrase in %s; size would be %d"), filename, size);
return -1;
}
- size >>= 2; /* bits->nibbles */
- pp = xmalloc(size+2);
- fgets(pp, size+1, f);
+
+ /* Hmz... hackish... strange +1 and +2 stuff... I really like more comments on those alignment thingies! */
+
+ pp = xmalloc(size/4 + 1); /* Allocate enough for fgets */
+ fgets(pp, size/4 + 1, f); /* Read passhrase and reserve one byte for end-of-string */
fclose(f);
- *out = xmalloc(size);
+ *out = xmalloc(size/8 + 2); /* Allocate enough bytes, +1 for rounding if bits%8 != 0, +1 for 2-byte alignment */
cp
return str_hex_to_bin(*out, pp);
}
else
my_key_expiry = (time_t)(time(NULL) + cfg->data.val);
- syslog(LOG_NOTICE, _("Generating %d bits keys."), PRIVATE_KEY_BITS);
+ if(debug_lvl > 1)
+ syslog(LOG_NOTICE, _("Generating %d bits keys"), PRIVATE_KEY_BITS);
if((f = fopen("/dev/urandom", "r")) == NULL)
{
mpz_t pk;
unsigned char *out;
BF_KEY bf_key;
- char which[sizeof("123.123.123.123")+1];
+ char *which;
char *meuk;
cp
mpz_init_set_str(pk, his_pubkey, 36);
if(key_inited)
cipher_set_key(&encryption_key, encryption_keylen, text_key);
- sprintf(which, IP_ADDR_S, IP_ADDR_V(cl->vpn_ip));
+ asprintf(&which, IP_ADDR_S, IP_ADDR_V(cl->vpn_ip));
if((pplen = read_passphrase(which, &meuk)) < 0)
return -1;
/* We haven't received a key from this host (yet). */
continue;
ek = make_shared_key(p->public_key->key);
- free_key(p->key);
- p->key = xmalloc(sizeof(*p->key));
- p->key->length = strlen(ek);
- p->key->expiry = p->public_key->expiry;
- p->key->key = xmalloc(strlen(ek) + 1);
- strcpy(p->key->key, ek);
+ free_key(p->datakey);
+ p->datakey = xmalloc(sizeof(*p->datakey));
+ p->datakey->length = strlen(ek);
+ p->datakey->expiry = p->public_key->expiry;
+ p->datakey->key = xmalloc(strlen(ek) + 1);
+ strcpy(p->datakey->key, ek);
}
cp
}