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/* $Id: minissdpc.c,v 1.6 2008/10/06 23:08:39 nanard Exp $ */
/* Project : miniupnp
* Author : Thomas BERNARD
* copyright (c) 2005-2008 Thomas Bernard
* This software is subjet to the conditions detailed in the
* provided LICENCE file. */
/*#include <syslog.h>*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include "minissdpc.h"
#include "miniupnpc.h"
#include "codelength.h"
struct UPNPDev *
getDevicesFromMiniSSDPD(const char * devtype, const char * socketpath)
{
struct UPNPDev * tmp;
struct UPNPDev * devlist = NULL;
unsigned char buffer[2048];
ssize_t n;
unsigned char * p;
unsigned char * url;
unsigned int i;
unsigned int urlsize, stsize, usnsize, l;
int s;
struct sockaddr_un addr;
s = socket(AF_UNIX, SOCK_STREAM, 0);
if(s < 0)
{
/*syslog(LOG_ERR, "socket(unix): %m");*/
perror("socket(unix)");
return NULL;
}
addr.sun_family = AF_UNIX;
strncpy(addr.sun_path, socketpath, sizeof(addr.sun_path) - 1);
if(connect(s, (struct sockaddr *)&addr, sizeof(struct sockaddr_un)) < 0)
{
/*syslog(LOG_WARNING, "connect(\"%s\"): %m", socketpath);*/
close(s);
return NULL;
}
stsize = strlen(devtype);
buffer[0] = 1; /* request type 1 : request devices/services by type */
p = buffer + 1;
l = stsize; CODELENGTH(l, p);
memcpy(p, devtype, stsize);
p += stsize;
if(write(s, buffer, p - buffer) < 0)
{
/*syslog(LOG_ERR, "write(): %m");*/
perror("minissdpc.c: write()");
close(s);
return NULL;
}
n = read(s, buffer, sizeof(buffer));
if(n<=0)
{
perror("minissdpc.c: read()");
close(s);
return NULL;
}
p = buffer + 1;
for(i = 0; i < buffer[0]; i++)
{
if(p+2>=buffer+sizeof(buffer))
break;
DECODELENGTH(urlsize, p);
if(p+urlsize+2>=buffer+sizeof(buffer))
break;
url = p;
p += urlsize;
DECODELENGTH(stsize, p);
if(p+stsize+2>=buffer+sizeof(buffer))
break;
tmp = (struct UPNPDev *)malloc(sizeof(struct UPNPDev)+urlsize+stsize);
tmp->pNext = devlist;
tmp->descURL = tmp->buffer;
tmp->st = tmp->buffer + 1 + urlsize;
memcpy(tmp->buffer, url, urlsize);
tmp->buffer[urlsize] = '\0';
memcpy(tmp->buffer + urlsize + 1, p, stsize);
p += stsize;
tmp->buffer[urlsize+1+stsize] = '\0';
devlist = tmp;
/* added for compatibility with recent versions of MiniSSDPd
* >= 2007/12/19 */
DECODELENGTH(usnsize, p);
p += usnsize;
if(p>buffer + sizeof(buffer))
break;
}
close(s);
return devlist;
}
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