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transmission/third-party/miniupnp/minissdpc.c

84 lines
1.9 KiB
C

/* $Id: minissdpc.c,v 1.3 2007/09/01 23:34:12 nanard Exp $ */
/* Project : miniupnp
* Author : Thomas BERNARD
* copyright (c) 2005-2007 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"
struct UPNPDev *
getDevicesFromMiniSSDPD(const char * devtype, const char * socketpath)
{
struct UPNPDev * tmp;
struct UPNPDev * devlist = NULL;
unsigned char buffer[512];
ssize_t n;
unsigned char * p;
unsigned int i;
unsigned int urlsize, stsize;
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));
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;
buffer[1] = stsize;
memcpy(buffer + 2, devtype, (int)buffer[1]);
if(write(s, buffer, (int)buffer[1] + 2) < 0)
{
/*syslog(LOG_ERR, "write(): %m");*/
perror("write()");
close(s);
return NULL;
}
n = read(s, buffer, sizeof(buffer));
if(n<=0)
{
close(s);
return NULL;
}
p = buffer + 1;
for(i = 0; i < buffer[0]; i++)
{
urlsize = *(p++);
stsize = p[urlsize];
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, p, urlsize);
tmp->buffer[urlsize] = '\0';
p += urlsize;
p++;
memcpy(tmp->buffer + urlsize + 1, p, stsize);
tmp->buffer[urlsize+1+stsize] = '\0';
devlist = tmp;
}
close(s);
return devlist;
}