mirror of
https://github.com/servalproject/serval-dna.git
synced 2024-12-27 00:31:09 +00:00
252 lines
5.7 KiB
C
252 lines
5.7 KiB
C
/*
|
|
Serval DNA data interchange formats
|
|
Copyright (C) 2010-2013 Serval Project Inc.
|
|
|
|
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 the Free Software Foundation; either version 2
|
|
of the License, or (at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#include <ctype.h>
|
|
#include "serval.h"
|
|
#include "rhizome.h"
|
|
#include "str.h"
|
|
#include "dataformats.h"
|
|
|
|
int cmp_sid_t(const sid_t *a, const sid_t *b)
|
|
{
|
|
return memcmp(a, b, sizeof a->binary);
|
|
}
|
|
|
|
int str_to_sid_t(sid_t *sid, const char *hex)
|
|
{
|
|
if (strcmp(hex, "broadcast") == 0) {
|
|
if (sid)
|
|
*sid = SID_BROADCAST;
|
|
return 0;
|
|
}
|
|
return sid ? fromhexstr(sid->binary, hex, sizeof sid->binary) : is_xstring(hex, SID_STRLEN) ? 0 : -1;
|
|
}
|
|
|
|
int strn_to_sid_t(sid_t *sid, const char *hex, const char **endp)
|
|
{
|
|
if (str_startswith(hex, "broadcast", endp)) {
|
|
if (sid)
|
|
*sid = SID_BROADCAST;
|
|
return 0;
|
|
}
|
|
sid_t tmp;
|
|
int n = fromhex(tmp.binary, hex, sizeof tmp.binary);
|
|
if (n != sizeof tmp.binary)
|
|
return -1;
|
|
*sid = tmp;
|
|
if (endp)
|
|
*endp = hex + sizeof sid->binary * 2;
|
|
return 0;
|
|
}
|
|
|
|
int str_is_subscriber_id(const char *sid)
|
|
{
|
|
size_t len = 0;
|
|
return strn_is_subscriber_id(sid, &len) && sid[len] == '\0';
|
|
}
|
|
|
|
int strn_is_subscriber_id(const char *sid, size_t *lenp)
|
|
{
|
|
if (strncasecmp(sid, "broadcast", 9) == 0) {
|
|
if (lenp)
|
|
*lenp = 9;
|
|
return 1;
|
|
}
|
|
if (is_xsubstring(sid, SID_STRLEN)) {
|
|
if (lenp)
|
|
*lenp = SID_STRLEN;
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int cmp_rhizome_bid_t(const rhizome_bid_t *a, const rhizome_bid_t *b)
|
|
{
|
|
return memcmp(a, b, sizeof a->binary);
|
|
}
|
|
|
|
int str_to_rhizome_bid_t(rhizome_bid_t *bid, const char *hex)
|
|
{
|
|
return bid ? fromhexstr(bid->binary, hex, sizeof bid->binary) : is_xstring(hex, RHIZOME_BUNDLE_ID_STRLEN) ? 0 : -1;
|
|
}
|
|
|
|
int strn_to_rhizome_bid_t(rhizome_bid_t *bid, const char *hex, const char **endp)
|
|
{
|
|
rhizome_bid_t tmp;
|
|
int n = fromhex(tmp.binary, hex, sizeof tmp.binary);
|
|
if (n != sizeof tmp.binary)
|
|
return -1;
|
|
if (bid)
|
|
*bid = tmp;
|
|
if (endp)
|
|
*endp = hex + sizeof tmp.binary * 2;
|
|
return 0;
|
|
}
|
|
|
|
int cmp_rhizome_filehash_t(const rhizome_filehash_t *a, const rhizome_filehash_t *b)
|
|
{
|
|
return memcmp(a, b, sizeof a->binary);
|
|
}
|
|
|
|
int str_to_rhizome_filehash_t(rhizome_filehash_t *hashp, const char *hex)
|
|
{
|
|
return hashp ? fromhexstr(hashp->binary, hex, sizeof hashp->binary) : is_xstring(hex, RHIZOME_FILEHASH_STRLEN) ? 0 : -1;
|
|
}
|
|
|
|
int strn_to_rhizome_filehash_t(rhizome_filehash_t *hashp, const char *hex, const char **endp)
|
|
{
|
|
rhizome_filehash_t tmp;
|
|
int n = fromhex(tmp.binary, hex, sizeof tmp.binary);
|
|
if (n != sizeof tmp.binary)
|
|
return -1;
|
|
if (hashp)
|
|
*hashp = tmp;
|
|
if (endp)
|
|
*endp = hex + sizeof tmp.binary * 2;
|
|
return 0;
|
|
}
|
|
|
|
int str_to_rhizome_bk_t(rhizome_bk_t *bkp, const char *hex)
|
|
{
|
|
return bkp ? fromhexstr(bkp->binary, hex, sizeof bkp->binary) : is_xstring(hex, RHIZOME_BUNDLE_KEY_STRLEN) ? 0 : -1;
|
|
}
|
|
|
|
int strn_to_rhizome_bk_t(rhizome_bk_t *bkp, const char *hex, const char **endp)
|
|
{
|
|
rhizome_bk_t tmp;
|
|
int n = fromhex(tmp.binary, hex, sizeof tmp.binary);
|
|
if (n != sizeof tmp.binary)
|
|
return -1;
|
|
if (bkp)
|
|
*bkp = tmp;
|
|
if (endp)
|
|
*endp = hex + sizeof tmp.binary * 2;
|
|
return 0;
|
|
}
|
|
|
|
int rhizome_strn_is_bundle_crypt_key(const char *key)
|
|
{
|
|
return is_xsubstring(key, RHIZOME_CRYPT_KEY_STRLEN);
|
|
}
|
|
|
|
int rhizome_str_is_bundle_crypt_key(const char *key)
|
|
{
|
|
return is_xstring(key, RHIZOME_CRYPT_KEY_STRLEN);
|
|
}
|
|
|
|
int rhizome_str_is_manifest_service(const char *text)
|
|
{
|
|
if (text[0] == '\0')
|
|
return 0;
|
|
while (*text && (isalnum(*text) || *text == '_' || *text == '.'))
|
|
++text;
|
|
return *text == '\0';
|
|
}
|
|
|
|
/* A name cannot contain a LF because that is the Rhizome text manifest field terminator. For the
|
|
* time being, CR is not allowed either, because the Rhizome field terminator includes an optional
|
|
* CR. See rhizome_manifest_parse().
|
|
*
|
|
* @author Andrew Bettison <andrew@servalproject.com>
|
|
*/
|
|
int rhizome_str_is_manifest_name(const char *text)
|
|
{
|
|
while (*text && *text != '\n' && *text != '\r')
|
|
++text;
|
|
return *text == '\0';
|
|
}
|
|
|
|
int str_is_did(const char *did)
|
|
{
|
|
size_t len = 0;
|
|
return strn_is_did(did, &len) && did[len] == '\0';
|
|
}
|
|
|
|
int is_didchar(char c)
|
|
{
|
|
return isdigit(c) || c == '*' || c == '#' || c == '+';
|
|
}
|
|
|
|
int strn_is_did(const char *did, size_t *lenp)
|
|
{
|
|
int i;
|
|
for (i = 0; i < DID_MAXSIZE && is_didchar(did[i]); ++i)
|
|
;
|
|
if (i < DID_MINSIZE)
|
|
return 0;
|
|
if (lenp)
|
|
*lenp = i;
|
|
return 1;
|
|
}
|
|
|
|
void write_uint64(unsigned char *o,uint64_t v)
|
|
{
|
|
int i;
|
|
for(i=0;i<8;i++)
|
|
{ *(o++)=v&0xff; v=v>>8; }
|
|
}
|
|
|
|
void write_uint32(unsigned char *o,uint32_t v)
|
|
{
|
|
int i;
|
|
for(i=0;i<4;i++)
|
|
{ *(o++)=v&0xff; v=v>>8; }
|
|
}
|
|
|
|
void write_uint16(unsigned char *o,uint16_t v)
|
|
{
|
|
int i;
|
|
for(i=0;i<2;i++)
|
|
{ *(o++)=v&0xff; v=v>>8; }
|
|
}
|
|
|
|
uint64_t read_uint64(const unsigned char *o)
|
|
{
|
|
int i;
|
|
uint64_t v=0;
|
|
for(i=0;i<8;i++) v=(v<<8)|o[8-1-i];
|
|
return v;
|
|
}
|
|
|
|
uint32_t read_uint32(const unsigned char *o)
|
|
{
|
|
int i;
|
|
uint32_t v=0;
|
|
for(i=0;i<4;i++) v=(v<<8)|o[4-1-i];
|
|
return v;
|
|
}
|
|
|
|
uint16_t read_uint16(const unsigned char *o)
|
|
{
|
|
int i;
|
|
uint16_t v=0;
|
|
for(i=0;i<2;i++) v=(v<<8)|o[2-1-i];
|
|
return v;
|
|
}
|
|
|
|
int compare_wrapped_uint8(uint8_t one, uint8_t two)
|
|
{
|
|
return (int8_t)(one - two);
|
|
}
|
|
|
|
int compare_wrapped_uint16(uint16_t one, uint16_t two)
|
|
{
|
|
return (int16_t)(one - two);
|
|
}
|