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/* --------------------------------------------------------------------------
MusicBrainz -- The Internet music metadatabase
Copyright (C) 2000 Relatable.com
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
$Id: uuid.cpp,v 1.2 2000/09/22 14:15:02 robert Exp $
----------------------------------------------------------------------------*/
#include "uuid.h"
int uuid_parse(char *in, uuid_t1 uu)
{
struct uuid uuid;
int i;
char *cp, buf[3];
if (strlen(in) != 36)
return -1;
for (i=0, cp = in; i <= 36; i++,cp++) {
if ((i == 8) || (i == 13) || (i == 18) ||
(i == 23))
if (*cp == '-')
continue;
if (i== 36)
if (*cp == 0)
continue;
if (!isxdigit(*cp))
return -1;
}
uuid.time_low = strtoul(in, NULL, 16);
uuid.time_mid = strtoul(in+9, NULL, 16);
uuid.time_hi_and_version = strtoul(in+14, NULL, 16);
uuid.clock_seq = strtoul(in+19, NULL, 16);
cp = in+24;
buf[2] = 0;
for (i=0; i < 6; i++) {
buf[0] = *cp++;
buf[1] = *cp++;
uuid.node[i] = strtoul(buf, NULL, 16);
}
uuid_pack(&uuid, uu);
return 0;
}
void uuid_pack(struct uuid *uu, uuid_t1 ptr)
{
__u32 tmp;
unsigned char *out = ptr;
tmp = uu->time_low;
out[3] = (unsigned char) tmp;
tmp >>= 8;
out[2] = (unsigned char) tmp;
tmp >>= 8;
out[1] = (unsigned char) tmp;
tmp >>= 8;
out[0] = (unsigned char) tmp;
tmp = uu->time_mid;
out[5] = (unsigned char) tmp;
tmp >>= 8;
out[4] = (unsigned char) tmp;
tmp = uu->time_hi_and_version;
out[7] = (unsigned char) tmp;
tmp >>= 8;
out[6] = (unsigned char) tmp;
tmp = uu->clock_seq;
out[9] = (unsigned char) tmp;
tmp >>= 8;
out[8] = (unsigned char) tmp;
memcpy(out+10, uu->node, 6);
}
void uuid_unpack(uuid_t1 in, struct uuid *uu)
{
__u8 *ptr = in;
__u32 tmp;
tmp = *ptr++;
tmp = (tmp << 8) | *ptr++;
tmp = (tmp << 8) | *ptr++;
tmp = (tmp << 8) | *ptr++;
uu->time_low = tmp;
tmp = *ptr++;
tmp = (tmp << 8) | *ptr++;
uu->time_mid = tmp;
tmp = *ptr++;
tmp = (tmp << 8) | *ptr++;
uu->time_hi_and_version = tmp;
tmp = *ptr++;
tmp = (tmp << 8) | *ptr++;
uu->clock_seq = tmp;
memcpy(uu->node, ptr, 6);
}
void uuid_ascii(uuid_t1 in, char ascii[37])
{
uuid foo;
uuid_unpack(in, &foo);
sprintf(ascii,
"%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
foo.time_low, foo.time_mid, foo.time_hi_and_version,
(foo.clock_seq >> 8), foo.clock_seq & 0xFF,
foo.node[0], foo.node[1], foo.node[2],
foo.node[3], foo.node[4], foo.node[5]);
}
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