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@@ -0,0 +1,851 @@
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+#define _CRT_SECURE_NO_WARNINGS
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+
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+/* $Id: minissdpc.c,v 1.30 2015/10/26 17:05:07 nanard Exp $ */
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+/* Project : miniupnp
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+ * Web : http://miniupnp.free.fr/
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+ * Author : Thomas BERNARD
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+ * copyright (c) 2005-2015 Thomas Bernard
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+ * This software is subjet to the conditions detailed in the
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+ * provided LICENCE file. */
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+/*#include <syslog.h>*/
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+#include <stdio.h>
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+#include <string.h>
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+#include <stdlib.h>
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+#include <sys/types.h>
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+#if defined(_WIN32) || defined(__amigaos__) || defined(__amigaos4__)
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+#ifdef _WIN32
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+#include <winsock2.h>
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+#include <ws2tcpip.h>
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+#include <io.h>
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+#include <iphlpapi.h>
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+#include <winsock.h>
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+#define snprintf _snprintf
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+#if !defined(_MSC_VER)
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+#include <stdint.h>
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+#else /* !defined(_MSC_VER) */
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+typedef unsigned short uint16_t;
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+#endif /* !defined(_MSC_VER) */
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+#ifndef strncasecmp
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+#if defined(_MSC_VER) && (_MSC_VER >= 1400)
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+#define strncasecmp _memicmp
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+#else /* defined(_MSC_VER) && (_MSC_VER >= 1400) */
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+#define strncasecmp memicmp
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+#endif /* defined(_MSC_VER) && (_MSC_VER >= 1400) */
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+#endif /* #ifndef strncasecmp */
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+#endif /* _WIN32 */
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+#if defined(__amigaos__) || defined(__amigaos4__)
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+#include <sys/socket.h>
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+#endif /* defined(__amigaos__) || defined(__amigaos4__) */
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+#if defined(__amigaos__)
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+#define uint16_t unsigned short
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+#endif /* defined(__amigaos__) */
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+/* Hack */
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+#define UNIX_PATH_LEN 108
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+struct sockaddr_un {
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+ uint16_t sun_family;
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+ char sun_path[UNIX_PATH_LEN];
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+};
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+#else /* defined(_WIN32) || defined(__amigaos__) || defined(__amigaos4__) */
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+#include <strings.h>
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+#include <unistd.h>
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+#include <sys/socket.h>
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+#include <sys/param.h>
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+#include <sys/time.h>
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+#include <sys/un.h>
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+#include <netinet/in.h>
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+#include <arpa/inet.h>
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+#include <netdb.h>
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+#include <net/if.h>
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+#define closesocket close
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+#endif
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+
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+#ifdef _WIN32
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+#define PRINT_SOCKET_ERROR(x) printf("Socket error: %s, %d\n", x, WSAGetLastError());
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+#else
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+#define PRINT_SOCKET_ERROR(x) perror(x)
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+#endif
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+
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+#if !defined(__DragonFly__) && !defined(__OpenBSD__) && !defined(__NetBSD__) && !defined(__APPLE__) && !defined(_WIN32) && !defined(__CYGWIN__) && !defined(__sun) && !defined(__GNU__) && !defined(__FreeBSD_kernel__)
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+#define HAS_IP_MREQN
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+#endif
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+
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+#if defined(HAS_IP_MREQN) && defined(NEED_STRUCT_IP_MREQN)
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+/* Several versions of glibc don't define this structure,
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+ * define it here and compile with CFLAGS NEED_STRUCT_IP_MREQN */
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+struct ip_mreqn
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+{
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+ struct in_addr imr_multiaddr; /* IP multicast address of group */
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+ struct in_addr imr_address; /* local IP address of interface */
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+ int imr_ifindex; /* Interface index */
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+};
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+#endif
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+
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+#if defined(__amigaos__) || defined(__amigaos4__)
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+/* Amiga OS specific stuff */
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+#define TIMEVAL struct timeval
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+#endif
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+
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+#include "minissdpc.h"
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+#include "miniupnpc.h"
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+#include "receivedata.h"
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+
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+#if !(defined(_WIN32) || defined(__amigaos__) || defined(__amigaos4__))
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+
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+#include "codelength.h"
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+
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+struct UPNPDev *
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+getDevicesFromMiniSSDPD(const char * devtype, const char * socketpath, int * error)
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+{
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+ struct UPNPDev * devlist = NULL;
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+ int s;
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+ int res;
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+
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+ s = connectToMiniSSDPD(socketpath);
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+ if (s < 0) {
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+ if (error)
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+ *error = s;
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+ return NULL;
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+ }
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+ res = requestDevicesFromMiniSSDPD(s, devtype);
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+ if (res < 0) {
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+ if (error)
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+ *error = res;
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+ } else {
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+ devlist = receiveDevicesFromMiniSSDPD(s, error);
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+ }
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+ disconnectFromMiniSSDPD(s);
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+ return devlist;
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+}
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+
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+/* macros used to read from unix socket */
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+#define READ_BYTE_BUFFER(c) \
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+ if((int)bufferindex >= n) { \
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+ n = read(s, buffer, sizeof(buffer)); \
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+ if(n<=0) break; \
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+ bufferindex = 0; \
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+ } \
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+ c = buffer[bufferindex++];
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+
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+#ifndef MIN
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+#define MIN(a, b) (((a) < (b)) ? (a) : (b))
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+#endif /* MIN */
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+
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+#define READ_COPY_BUFFER(dst, len) \
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+ for(l = len, p = (unsigned char *)dst; l > 0; ) { \
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+ unsigned int lcopy; \
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+ if((int)bufferindex >= n) { \
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+ n = read(s, buffer, sizeof(buffer)); \
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+ if(n<=0) break; \
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+ bufferindex = 0; \
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+ } \
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+ lcopy = MIN(l, (n - bufferindex)); \
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+ memcpy(p, buffer + bufferindex, lcopy); \
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+ l -= lcopy; \
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+ p += lcopy; \
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+ bufferindex += lcopy; \
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+ }
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+
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+#define READ_DISCARD_BUFFER(len) \
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+ for(l = len; l > 0; ) { \
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+ unsigned int lcopy; \
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+ if(bufferindex >= n) { \
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+ n = read(s, buffer, sizeof(buffer)); \
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+ if(n<=0) break; \
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+ bufferindex = 0; \
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+ } \
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+ lcopy = MIN(l, (n - bufferindex)); \
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+ l -= lcopy; \
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+ bufferindex += lcopy; \
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+ }
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+
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+int
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+connectToMiniSSDPD(const char * socketpath)
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+{
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+ int s;
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+ struct sockaddr_un addr;
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+#ifdef MINIUPNPC_SET_SOCKET_TIMEOUT
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+ struct timeval timeout;
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+#endif /* #ifdef MINIUPNPC_SET_SOCKET_TIMEOUT */
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+
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+ s = socket(AF_UNIX, SOCK_STREAM, 0);
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+ if(s < 0)
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+ {
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+ /*syslog(LOG_ERR, "socket(unix): %m");*/
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+ perror("socket(unix)");
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+ return MINISSDPC_SOCKET_ERROR;
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+ }
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+#ifdef MINIUPNPC_SET_SOCKET_TIMEOUT
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+ /* setting a 3 seconds timeout */
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+ timeout.tv_sec = 3;
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+ timeout.tv_usec = 0;
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+ if(setsockopt(s, SOL_SOCKET, SO_RCVTIMEO, &timeout, sizeof(struct timeval)) < 0)
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+ {
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+ perror("setsockopt");
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+ }
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+ timeout.tv_sec = 3;
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+ timeout.tv_usec = 0;
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+ if(setsockopt(s, SOL_SOCKET, SO_SNDTIMEO, &timeout, sizeof(struct timeval)) < 0)
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+ {
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+ perror("setsockopt");
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+ }
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+#endif /* #ifdef MINIUPNPC_SET_SOCKET_TIMEOUT */
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+ if(!socketpath)
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+ socketpath = "/var/run/minissdpd.sock";
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+ addr.sun_family = AF_UNIX;
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+ strncpy(addr.sun_path, socketpath, sizeof(addr.sun_path));
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+ /* TODO : check if we need to handle the EINTR */
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+ if(connect(s, (struct sockaddr *)&addr, sizeof(struct sockaddr_un)) < 0)
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+ {
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+ /*syslog(LOG_WARNING, "connect(\"%s\"): %m", socketpath);*/
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+ close(s);
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+ return MINISSDPC_SOCKET_ERROR;
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+ }
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+ return s;
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+}
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+
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+int
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+disconnectFromMiniSSDPD(int s)
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+{
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+ if (close(s) < 0)
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+ return MINISSDPC_SOCKET_ERROR;
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+ return MINISSDPC_SUCCESS;
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+}
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+
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+int
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+requestDevicesFromMiniSSDPD(int s, const char * devtype)
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+{
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+ unsigned char buffer[256];
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+ unsigned char * p;
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+ unsigned int stsize, l;
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+
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+ stsize = strlen(devtype);
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+ if(stsize == 8 && 0 == memcmp(devtype, "ssdp:all", 8))
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+ {
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+ buffer[0] = 3; /* request type 3 : everything */
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+ }
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+ else
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+ {
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+ buffer[0] = 1; /* request type 1 : request devices/services by type */
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+ }
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+ p = buffer + 1;
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+ l = stsize; CODELENGTH(l, p);
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+ if(p + stsize > buffer + sizeof(buffer))
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+ {
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+ /* devtype is too long ! */
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+#ifdef DEBUG
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+ fprintf(stderr, "devtype is too long ! stsize=%u sizeof(buffer)=%u\n",
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+ stsize, (unsigned)sizeof(buffer));
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+#endif /* DEBUG */
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+ return MINISSDPC_INVALID_INPUT;
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+ }
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+ memcpy(p, devtype, stsize);
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+ p += stsize;
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+ if(write(s, buffer, p - buffer) < 0)
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+ {
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+ /*syslog(LOG_ERR, "write(): %m");*/
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+ perror("minissdpc.c: write()");
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+ return MINISSDPC_SOCKET_ERROR;
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+ }
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+ return MINISSDPC_SUCCESS;
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+}
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+
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+struct UPNPDev *
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+receiveDevicesFromMiniSSDPD(int s, int * error)
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+{
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+ struct UPNPDev * tmp;
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+ struct UPNPDev * devlist = NULL;
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+ unsigned char buffer[256];
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+ ssize_t n;
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+ unsigned char * p;
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+ unsigned char * url;
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+ unsigned char * st;
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+ unsigned int bufferindex;
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+ unsigned int i, ndev;
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+ unsigned int urlsize, stsize, usnsize, l;
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+
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+ n = read(s, buffer, sizeof(buffer));
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+ if(n<=0)
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+ {
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+ perror("minissdpc.c: read()");
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+ if (error)
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+ *error = MINISSDPC_SOCKET_ERROR;
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+ return NULL;
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+ }
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+ ndev = buffer[0];
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+ bufferindex = 1;
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+ for(i = 0; i < ndev; i++)
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+ {
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+ DECODELENGTH_READ(urlsize, READ_BYTE_BUFFER);
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+ if(n<=0) {
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+ if (error)
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+ *error = MINISSDPC_INVALID_SERVER_REPLY;
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+ return devlist;
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+ }
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+#ifdef DEBUG
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+ printf(" urlsize=%u", urlsize);
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+#endif /* DEBUG */
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+ url = malloc(urlsize);
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+ if(url == NULL) {
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+ if (error)
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+ *error = MINISSDPC_MEMORY_ERROR;
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+ return devlist;
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+ }
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+ READ_COPY_BUFFER(url, urlsize);
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+ if(n<=0) {
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+ if (error)
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+ *error = MINISSDPC_INVALID_SERVER_REPLY;
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+ goto free_url_and_return;
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+ }
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+ DECODELENGTH_READ(stsize, READ_BYTE_BUFFER);
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+ if(n<=0) {
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+ if (error)
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+ *error = MINISSDPC_INVALID_SERVER_REPLY;
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+ goto free_url_and_return;
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+ }
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+#ifdef DEBUG
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+ printf(" stsize=%u", stsize);
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+#endif /* DEBUG */
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+ st = malloc(stsize);
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+ if (st == NULL) {
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+ if (error)
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+ *error = MINISSDPC_MEMORY_ERROR;
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+ goto free_url_and_return;
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+ }
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+ READ_COPY_BUFFER(st, stsize);
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+ if(n<=0) {
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+ if (error)
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+ *error = MINISSDPC_INVALID_SERVER_REPLY;
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+ goto free_url_and_st_and_return;
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+ }
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+ DECODELENGTH_READ(usnsize, READ_BYTE_BUFFER);
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+ if(n<=0) {
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+ if (error)
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+ *error = MINISSDPC_INVALID_SERVER_REPLY;
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+ goto free_url_and_st_and_return;
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+ }
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+#ifdef DEBUG
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+ printf(" usnsize=%u\n", usnsize);
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+#endif /* DEBUG */
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+ tmp = (struct UPNPDev *)malloc(sizeof(struct UPNPDev)+urlsize+stsize+usnsize);
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+ if(tmp == NULL) {
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+ if (error)
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+ *error = MINISSDPC_MEMORY_ERROR;
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+ goto free_url_and_st_and_return;
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+ }
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+ tmp->pNext = devlist;
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+ tmp->descURL = tmp->buffer;
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+ tmp->st = tmp->buffer + 1 + urlsize;
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+ memcpy(tmp->buffer, url, urlsize);
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+ tmp->buffer[urlsize] = '\0';
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+ memcpy(tmp->st, st, stsize);
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+ tmp->buffer[urlsize+1+stsize] = '\0';
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+ free(url);
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+ free(st);
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+ url = NULL;
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+ st = NULL;
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+ tmp->usn = tmp->buffer + 1 + urlsize + 1 + stsize;
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+ READ_COPY_BUFFER(tmp->usn, usnsize);
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+ if(n<=0) {
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+ if (error)
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+ *error = MINISSDPC_INVALID_SERVER_REPLY;
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+ goto free_tmp_and_return;
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+ }
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+ tmp->buffer[urlsize+1+stsize+1+usnsize] = '\0';
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+ tmp->scope_id = 0; /* default value. scope_id is not available with MiniSSDPd */
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+ devlist = tmp;
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+ }
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+ if (error)
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+ *error = MINISSDPC_SUCCESS;
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+ return devlist;
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+
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+free_url_and_st_and_return:
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+ free(st);
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+free_url_and_return:
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+ free(url);
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+ return devlist;
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+
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+free_tmp_and_return:
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+ free(tmp);
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+ return devlist;
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+}
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+
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+#endif /* !(defined(_WIN32) || defined(__amigaos__) || defined(__amigaos4__)) */
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+
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+/* parseMSEARCHReply()
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+ * the last 4 arguments are filled during the parsing :
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+ * - location/locationsize : "location:" field of the SSDP reply packet
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+ * - st/stsize : "st:" field of the SSDP reply packet.
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+ * The strings are NOT null terminated */
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+static void
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+parseMSEARCHReply(const char * reply, int size,
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+ const char * * location, int * locationsize,
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+ const char * * st, int * stsize,
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+ const char * * usn, int * usnsize)
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+{
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+ int a, b, i;
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+ i = 0;
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+ a = i; /* start of the line */
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+ b = 0; /* end of the "header" (position of the colon) */
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+ while(i<size)
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+ {
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+ switch(reply[i])
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+ {
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+ case ':':
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+ if(b==0)
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+ {
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+ b = i; /* end of the "header" */
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+ /*for(j=a; j<b; j++)
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+ {
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+ putchar(reply[j]);
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+ }
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+ */
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+ }
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+ break;
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+ case '\x0a':
|
|
|
+ case '\x0d':
|
|
|
+ if(b!=0)
|
|
|
+ {
|
|
|
+ /*for(j=b+1; j<i; j++)
|
|
|
+ {
|
|
|
+ putchar(reply[j]);
|
|
|
+ }
|
|
|
+ putchar('\n');*/
|
|
|
+ /* skip the colon and white spaces */
|
|
|
+ do { b++; } while(reply[b]==' ');
|
|
|
+ if(0==strncasecmp(reply+a, "location", 8))
|
|
|
+ {
|
|
|
+ *location = reply+b;
|
|
|
+ *locationsize = i-b;
|
|
|
+ }
|
|
|
+ else if(0==strncasecmp(reply+a, "st", 2))
|
|
|
+ {
|
|
|
+ *st = reply+b;
|
|
|
+ *stsize = i-b;
|
|
|
+ }
|
|
|
+ else if(0==strncasecmp(reply+a, "usn", 3))
|
|
|
+ {
|
|
|
+ *usn = reply+b;
|
|
|
+ *usnsize = i-b;
|
|
|
+ }
|
|
|
+ b = 0;
|
|
|
+ }
|
|
|
+ a = i+1;
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ i++;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/* port upnp discover : SSDP protocol */
|
|
|
+#define SSDP_PORT 1900
|
|
|
+#define XSTR(s) STR(s)
|
|
|
+#define STR(s) #s
|
|
|
+#define UPNP_MCAST_ADDR "239.255.255.250"
|
|
|
+/* for IPv6 */
|
|
|
+#define UPNP_MCAST_LL_ADDR "FF02::C" /* link-local */
|
|
|
+#define UPNP_MCAST_SL_ADDR "FF05::C" /* site-local */
|
|
|
+
|
|
|
+/* direct discovery if minissdpd responses are not sufficient */
|
|
|
+/* ssdpDiscoverDevices() :
|
|
|
+ * return a chained list of all devices found or NULL if
|
|
|
+ * no devices was found.
|
|
|
+ * It is up to the caller to free the chained list
|
|
|
+ * delay is in millisecond (poll).
|
|
|
+ * UDA v1.1 says :
|
|
|
+ * The TTL for the IP packet SHOULD default to 2 and
|
|
|
+ * SHOULD be configurable. */
|
|
|
+struct UPNPDev *
|
|
|
+ssdpDiscoverDevices(const char * const deviceTypes[],
|
|
|
+ int delay, const char * multicastif,
|
|
|
+ int localport,
|
|
|
+ int ipv6, unsigned char ttl,
|
|
|
+ int * error,
|
|
|
+ int searchalltypes)
|
|
|
+{
|
|
|
+ struct UPNPDev * tmp;
|
|
|
+ struct UPNPDev * devlist = 0;
|
|
|
+ unsigned int scope_id = 0;
|
|
|
+ int opt = 1;
|
|
|
+ static const char MSearchMsgFmt[] =
|
|
|
+ "M-SEARCH * HTTP/1.1\r\n"
|
|
|
+ "HOST: %s:" XSTR(SSDP_PORT) "\r\n"
|
|
|
+ "ST: %s\r\n"
|
|
|
+ "MAN: \"ssdp:discover\"\r\n"
|
|
|
+ "MX: %u\r\n"
|
|
|
+ "\r\n";
|
|
|
+ int deviceIndex;
|
|
|
+ char bufr[1536]; /* reception and emission buffer */
|
|
|
+ int sudp;
|
|
|
+ int n;
|
|
|
+ struct sockaddr_storage sockudp_r;
|
|
|
+ unsigned int mx;
|
|
|
+#ifdef NO_GETADDRINFO
|
|
|
+ struct sockaddr_storage sockudp_w;
|
|
|
+#else
|
|
|
+ int rv;
|
|
|
+ struct addrinfo hints, *servinfo, *p;
|
|
|
+#endif
|
|
|
+#ifdef _WIN32
|
|
|
+ MIB_IPFORWARDROW ip_forward;
|
|
|
+ unsigned long _ttl = (unsigned long)ttl;
|
|
|
+#endif
|
|
|
+ int linklocal = 1;
|
|
|
+
|
|
|
+ if(error)
|
|
|
+ *error = MINISSDPC_UNKNOWN_ERROR;
|
|
|
+
|
|
|
+ if(localport==UPNP_LOCAL_PORT_SAME)
|
|
|
+ localport = SSDP_PORT;
|
|
|
+
|
|
|
+#ifdef _WIN32
|
|
|
+ sudp = socket(ipv6 ? PF_INET6 : PF_INET, SOCK_DGRAM, IPPROTO_UDP);
|
|
|
+#else
|
|
|
+ sudp = socket(ipv6 ? PF_INET6 : PF_INET, SOCK_DGRAM, 0);
|
|
|
+#endif
|
|
|
+ if(sudp < 0)
|
|
|
+ {
|
|
|
+ if(error)
|
|
|
+ *error = MINISSDPC_SOCKET_ERROR;
|
|
|
+ PRINT_SOCKET_ERROR("socket");
|
|
|
+ return NULL;
|
|
|
+ }
|
|
|
+ /* reception */
|
|
|
+ memset(&sockudp_r, 0, sizeof(struct sockaddr_storage));
|
|
|
+ if(ipv6) {
|
|
|
+ struct sockaddr_in6 * p = (struct sockaddr_in6 *)&sockudp_r;
|
|
|
+ p->sin6_family = AF_INET6;
|
|
|
+ if(localport > 0 && localport < 65536)
|
|
|
+ p->sin6_port = htons((unsigned short)localport);
|
|
|
+ p->sin6_addr = in6addr_any; /* in6addr_any is not available with MinGW32 3.4.2 */
|
|
|
+ } else {
|
|
|
+ struct sockaddr_in * p = (struct sockaddr_in *)&sockudp_r;
|
|
|
+ p->sin_family = AF_INET;
|
|
|
+ if(localport > 0 && localport < 65536)
|
|
|
+ p->sin_port = htons((unsigned short)localport);
|
|
|
+ p->sin_addr.s_addr = INADDR_ANY;
|
|
|
+ }
|
|
|
+#ifdef _WIN32
|
|
|
+/* This code could help us to use the right Network interface for
|
|
|
+ * SSDP multicast traffic */
|
|
|
+/* Get IP associated with the index given in the ip_forward struct
|
|
|
+ * in order to give this ip to setsockopt(sudp, IPPROTO_IP, IP_MULTICAST_IF) */
|
|
|
+ if(!ipv6
|
|
|
+ && (GetBestRoute(inet_addr("223.255.255.255"), 0, &ip_forward) == NO_ERROR)) {
|
|
|
+ DWORD dwRetVal = 0;
|
|
|
+ PMIB_IPADDRTABLE pIPAddrTable;
|
|
|
+ DWORD dwSize = 0;
|
|
|
+#ifdef DEBUG
|
|
|
+ IN_ADDR IPAddr;
|
|
|
+#endif
|
|
|
+ int i;
|
|
|
+#ifdef DEBUG
|
|
|
+ printf("ifIndex=%lu nextHop=%lx \n", ip_forward.dwForwardIfIndex, ip_forward.dwForwardNextHop);
|
|
|
+#endif
|
|
|
+ pIPAddrTable = (MIB_IPADDRTABLE *) malloc(sizeof (MIB_IPADDRTABLE));
|
|
|
+ if(pIPAddrTable) {
|
|
|
+ if (GetIpAddrTable(pIPAddrTable, &dwSize, 0) == ERROR_INSUFFICIENT_BUFFER) {
|
|
|
+ free(pIPAddrTable);
|
|
|
+ pIPAddrTable = (MIB_IPADDRTABLE *) malloc(dwSize);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ if(pIPAddrTable) {
|
|
|
+ dwRetVal = GetIpAddrTable( pIPAddrTable, &dwSize, 0 );
|
|
|
+ if (dwRetVal == NO_ERROR) {
|
|
|
+#ifdef DEBUG
|
|
|
+ printf("\tNum Entries: %ld\n", pIPAddrTable->dwNumEntries);
|
|
|
+#endif
|
|
|
+ for (i=0; i < (int) pIPAddrTable->dwNumEntries; i++) {
|
|
|
+#ifdef DEBUG
|
|
|
+ printf("\n\tInterface Index[%d]:\t%ld\n", i, pIPAddrTable->table[i].dwIndex);
|
|
|
+ IPAddr.S_un.S_addr = (u_long) pIPAddrTable->table[i].dwAddr;
|
|
|
+ printf("\tIP Address[%d]: \t%s\n", i, inet_ntoa(IPAddr) );
|
|
|
+ IPAddr.S_un.S_addr = (u_long) pIPAddrTable->table[i].dwMask;
|
|
|
+ printf("\tSubnet Mask[%d]: \t%s\n", i, inet_ntoa(IPAddr) );
|
|
|
+ IPAddr.S_un.S_addr = (u_long) pIPAddrTable->table[i].dwBCastAddr;
|
|
|
+ printf("\tBroadCast[%d]: \t%s (%ld)\n", i, inet_ntoa(IPAddr), pIPAddrTable->table[i].dwBCastAddr);
|
|
|
+ printf("\tReassembly size[%d]:\t%ld\n", i, pIPAddrTable->table[i].dwReasmSize);
|
|
|
+ printf("\tType and State[%d]:", i);
|
|
|
+ printf("\n");
|
|
|
+#endif
|
|
|
+ if (pIPAddrTable->table[i].dwIndex == ip_forward.dwForwardIfIndex) {
|
|
|
+ /* Set the address of this interface to be used */
|
|
|
+ struct in_addr mc_if;
|
|
|
+ memset(&mc_if, 0, sizeof(mc_if));
|
|
|
+ mc_if.s_addr = pIPAddrTable->table[i].dwAddr;
|
|
|
+ if(setsockopt(sudp, IPPROTO_IP, IP_MULTICAST_IF, (const char *)&mc_if, sizeof(mc_if)) < 0) {
|
|
|
+ PRINT_SOCKET_ERROR("setsockopt");
|
|
|
+ }
|
|
|
+ ((struct sockaddr_in *)&sockudp_r)->sin_addr.s_addr = pIPAddrTable->table[i].dwAddr;
|
|
|
+#ifndef DEBUG
|
|
|
+ break;
|
|
|
+#endif
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ free(pIPAddrTable);
|
|
|
+ pIPAddrTable = NULL;
|
|
|
+ }
|
|
|
+ }
|
|
|
+#endif /* _WIN32 */
|
|
|
+
|
|
|
+#ifdef _WIN32
|
|
|
+ if (setsockopt(sudp, SOL_SOCKET, SO_REUSEADDR, (const char *)&opt, sizeof (opt)) < 0)
|
|
|
+#else
|
|
|
+ if (setsockopt(sudp, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof (opt)) < 0)
|
|
|
+#endif
|
|
|
+ {
|
|
|
+ if(error)
|
|
|
+ *error = MINISSDPC_SOCKET_ERROR;
|
|
|
+ PRINT_SOCKET_ERROR("setsockopt(SO_REUSEADDR,...)");
|
|
|
+ return NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+#ifdef _WIN32
|
|
|
+ if(setsockopt(sudp, IPPROTO_IP, IP_MULTICAST_TTL, (const char *)&_ttl, sizeof(_ttl)) < 0)
|
|
|
+#else /* _WIN32 */
|
|
|
+ if(setsockopt(sudp, IPPROTO_IP, IP_MULTICAST_TTL, &ttl, sizeof(ttl)) < 0)
|
|
|
+#endif /* _WIN32 */
|
|
|
+ {
|
|
|
+ /* not a fatal error */
|
|
|
+ PRINT_SOCKET_ERROR("setsockopt(IP_MULTICAST_TTL,...)");
|
|
|
+ }
|
|
|
+
|
|
|
+ if(multicastif)
|
|
|
+ {
|
|
|
+ if(ipv6) {
|
|
|
+#if !defined(_WIN32)
|
|
|
+ /* according to MSDN, if_nametoindex() is supported since
|
|
|
+ * MS Windows Vista and MS Windows Server 2008.
|
|
|
+ * http://msdn.microsoft.com/en-us/library/bb408409%28v=vs.85%29.aspx */
|
|
|
+ unsigned int ifindex = if_nametoindex(multicastif); /* eth0, etc. */
|
|
|
+ if(setsockopt(sudp, IPPROTO_IPV6, IPV6_MULTICAST_IF, &ifindex, sizeof(ifindex)) < 0)
|
|
|
+ {
|
|
|
+ PRINT_SOCKET_ERROR("setsockopt");
|
|
|
+ }
|
|
|
+#else
|
|
|
+#ifdef DEBUG
|
|
|
+ printf("Setting of multicast interface not supported in IPv6 under Windows.\n");
|
|
|
+#endif
|
|
|
+#endif
|
|
|
+ } else {
|
|
|
+ struct in_addr mc_if;
|
|
|
+ mc_if.s_addr = inet_addr(multicastif); /* ex: 192.168.x.x */
|
|
|
+ if(mc_if.s_addr != INADDR_NONE)
|
|
|
+ {
|
|
|
+ ((struct sockaddr_in *)&sockudp_r)->sin_addr.s_addr = mc_if.s_addr;
|
|
|
+ if(setsockopt(sudp, IPPROTO_IP, IP_MULTICAST_IF, (const char *)&mc_if, sizeof(mc_if)) < 0)
|
|
|
+ {
|
|
|
+ PRINT_SOCKET_ERROR("setsockopt");
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+#ifdef HAS_IP_MREQN
|
|
|
+ /* was not an ip address, try with an interface name */
|
|
|
+ struct ip_mreqn reqn; /* only defined with -D_BSD_SOURCE or -D_GNU_SOURCE */
|
|
|
+ memset(&reqn, 0, sizeof(struct ip_mreqn));
|
|
|
+ reqn.imr_ifindex = if_nametoindex(multicastif);
|
|
|
+ if(setsockopt(sudp, IPPROTO_IP, IP_MULTICAST_IF, (const char *)&reqn, sizeof(reqn)) < 0)
|
|
|
+ {
|
|
|
+ PRINT_SOCKET_ERROR("setsockopt");
|
|
|
+ }
|
|
|
+#else
|
|
|
+#ifdef DEBUG
|
|
|
+ printf("Setting of multicast interface not supported with interface name.\n");
|
|
|
+#endif
|
|
|
+#endif
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Before sending the packed, we first "bind" in order to be able
|
|
|
+ * to receive the response */
|
|
|
+ if (bind(sudp, (const struct sockaddr *)&sockudp_r,
|
|
|
+ ipv6 ? sizeof(struct sockaddr_in6) : sizeof(struct sockaddr_in)) != 0)
|
|
|
+ {
|
|
|
+ if(error)
|
|
|
+ *error = MINISSDPC_SOCKET_ERROR;
|
|
|
+ PRINT_SOCKET_ERROR("bind");
|
|
|
+ closesocket(sudp);
|
|
|
+ return NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ if(error)
|
|
|
+ *error = MINISSDPC_SUCCESS;
|
|
|
+ /* Calculating maximum response time in seconds */
|
|
|
+ mx = ((unsigned int)delay) / 1000u;
|
|
|
+ if(mx == 0) {
|
|
|
+ mx = 1;
|
|
|
+ delay = 1000;
|
|
|
+ }
|
|
|
+ /* receiving SSDP response packet */
|
|
|
+ for(deviceIndex = 0; deviceTypes[deviceIndex]; deviceIndex++) {
|
|
|
+ /* sending the SSDP M-SEARCH packet */
|
|
|
+ n = snprintf(bufr, sizeof(bufr),
|
|
|
+ MSearchMsgFmt,
|
|
|
+ ipv6 ?
|
|
|
+ (linklocal ? "[" UPNP_MCAST_LL_ADDR "]" : "[" UPNP_MCAST_SL_ADDR "]")
|
|
|
+ : UPNP_MCAST_ADDR,
|
|
|
+ deviceTypes[deviceIndex], mx);
|
|
|
+ if ((unsigned int)n >= sizeof(bufr)) {
|
|
|
+ if(error)
|
|
|
+ *error = MINISSDPC_MEMORY_ERROR;
|
|
|
+ goto error;
|
|
|
+ }
|
|
|
+#ifdef DEBUG
|
|
|
+ /*printf("Sending %s", bufr);*/
|
|
|
+ printf("Sending M-SEARCH request to %s with ST: %s\n",
|
|
|
+ ipv6 ?
|
|
|
+ (linklocal ? "[" UPNP_MCAST_LL_ADDR "]" : "[" UPNP_MCAST_SL_ADDR "]")
|
|
|
+ : UPNP_MCAST_ADDR,
|
|
|
+ deviceTypes[deviceIndex]);
|
|
|
+#endif
|
|
|
+#ifdef NO_GETADDRINFO
|
|
|
+ /* the following code is not using getaddrinfo */
|
|
|
+ /* emission */
|
|
|
+ memset(&sockudp_w, 0, sizeof(struct sockaddr_storage));
|
|
|
+ if(ipv6) {
|
|
|
+ struct sockaddr_in6 * p = (struct sockaddr_in6 *)&sockudp_w;
|
|
|
+ p->sin6_family = AF_INET6;
|
|
|
+ p->sin6_port = htons(SSDP_PORT);
|
|
|
+ inet_pton(AF_INET6,
|
|
|
+ linklocal ? UPNP_MCAST_LL_ADDR : UPNP_MCAST_SL_ADDR,
|
|
|
+ &(p->sin6_addr));
|
|
|
+ } else {
|
|
|
+ struct sockaddr_in * p = (struct sockaddr_in *)&sockudp_w;
|
|
|
+ p->sin_family = AF_INET;
|
|
|
+ p->sin_port = htons(SSDP_PORT);
|
|
|
+ p->sin_addr.s_addr = inet_addr(UPNP_MCAST_ADDR);
|
|
|
+ }
|
|
|
+ n = sendto(sudp, bufr, n, 0, &sockudp_w,
|
|
|
+ ipv6 ? sizeof(struct sockaddr_in6) : sizeof(struct sockaddr_in));
|
|
|
+ if (n < 0) {
|
|
|
+ if(error)
|
|
|
+ *error = MINISSDPC_SOCKET_ERROR;
|
|
|
+ PRINT_SOCKET_ERROR("sendto");
|
|
|
+ break;
|
|
|
+ }
|
|
|
+#else /* #ifdef NO_GETADDRINFO */
|
|
|
+ memset(&hints, 0, sizeof(hints));
|
|
|
+ hints.ai_family = AF_UNSPEC; /* AF_INET6 or AF_INET */
|
|
|
+ hints.ai_socktype = SOCK_DGRAM;
|
|
|
+ /*hints.ai_flags = */
|
|
|
+ if ((rv = getaddrinfo(ipv6
|
|
|
+ ? (linklocal ? UPNP_MCAST_LL_ADDR : UPNP_MCAST_SL_ADDR)
|
|
|
+ : UPNP_MCAST_ADDR,
|
|
|
+ XSTR(SSDP_PORT), &hints, &servinfo)) != 0) {
|
|
|
+ if(error)
|
|
|
+ *error = MINISSDPC_SOCKET_ERROR;
|
|
|
+#ifdef _WIN32
|
|
|
+ fprintf(stderr, "getaddrinfo() failed: %d\n", rv);
|
|
|
+#else
|
|
|
+ fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(rv));
|
|
|
+#endif
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ for(p = servinfo; p; p = p->ai_next) {
|
|
|
+ n = sendto(sudp, bufr, n, 0, p->ai_addr, p->ai_addrlen);
|
|
|
+ if (n < 0) {
|
|
|
+#ifdef DEBUG
|
|
|
+ char hbuf[NI_MAXHOST], sbuf[NI_MAXSERV];
|
|
|
+ if (getnameinfo(p->ai_addr, p->ai_addrlen, hbuf, sizeof(hbuf), sbuf,
|
|
|
+ sizeof(sbuf), NI_NUMERICHOST | NI_NUMERICSERV) == 0) {
|
|
|
+ fprintf(stderr, "host:%s port:%s\n", hbuf, sbuf);
|
|
|
+ }
|
|
|
+#endif
|
|
|
+ PRINT_SOCKET_ERROR("sendto");
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ freeaddrinfo(servinfo);
|
|
|
+ if(n < 0) {
|
|
|
+ if(error)
|
|
|
+ *error = MINISSDPC_SOCKET_ERROR;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+#endif /* #ifdef NO_GETADDRINFO */
|
|
|
+ /* Waiting for SSDP REPLY packet to M-SEARCH
|
|
|
+ * if searchalltypes is set, enter the loop only
|
|
|
+ * when the last deviceType is reached */
|
|
|
+ if(!searchalltypes || !deviceTypes[deviceIndex + 1]) do {
|
|
|
+ n = receivedata(sudp, bufr, sizeof(bufr), delay, &scope_id);
|
|
|
+ if (n < 0) {
|
|
|
+ /* error */
|
|
|
+ if(error)
|
|
|
+ *error = MINISSDPC_SOCKET_ERROR;
|
|
|
+ goto error;
|
|
|
+ } else if (n == 0) {
|
|
|
+ /* no data or Time Out */
|
|
|
+#ifdef DEBUG
|
|
|
+ printf("NODATA or TIMEOUT\n");
|
|
|
+#endif /* DEBUG */
|
|
|
+ if (devlist && !searchalltypes) {
|
|
|
+ /* found some devices, stop now*/
|
|
|
+ if(error)
|
|
|
+ *error = MINISSDPC_SUCCESS;
|
|
|
+ goto error;
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ const char * descURL=NULL;
|
|
|
+ int urlsize=0;
|
|
|
+ const char * st=NULL;
|
|
|
+ int stsize=0;
|
|
|
+ const char * usn=NULL;
|
|
|
+ int usnsize=0;
|
|
|
+ parseMSEARCHReply(bufr, n, &descURL, &urlsize, &st, &stsize, &usn, &usnsize);
|
|
|
+ if(st&&descURL) {
|
|
|
+#ifdef DEBUG
|
|
|
+ printf("M-SEARCH Reply:\n ST: %.*s\n USN: %.*s\n Location: %.*s\n",
|
|
|
+ stsize, st, usnsize, (usn?usn:""), urlsize, descURL);
|
|
|
+#endif /* DEBUG */
|
|
|
+ for(tmp=devlist; tmp; tmp = tmp->pNext) {
|
|
|
+ if(memcmp(tmp->descURL, descURL, urlsize) == 0 &&
|
|
|
+ tmp->descURL[urlsize] == '\0' &&
|
|
|
+ memcmp(tmp->st, st, stsize) == 0 &&
|
|
|
+ tmp->st[stsize] == '\0' &&
|
|
|
+ (usnsize == 0 || memcmp(tmp->usn, usn, usnsize) == 0) &&
|
|
|
+ tmp->usn[usnsize] == '\0')
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ /* at the exit of the loop above, tmp is null if
|
|
|
+ * no duplicate device was found */
|
|
|
+ if(tmp)
|
|
|
+ continue;
|
|
|
+ tmp = (struct UPNPDev *)malloc(sizeof(struct UPNPDev)+urlsize+stsize+usnsize);
|
|
|
+ if(!tmp) {
|
|
|
+ /* memory allocation error */
|
|
|
+ if(error)
|
|
|
+ *error = MINISSDPC_MEMORY_ERROR;
|
|
|
+ goto error;
|
|
|
+ }
|
|
|
+ tmp->pNext = devlist;
|
|
|
+ tmp->descURL = tmp->buffer;
|
|
|
+ tmp->st = tmp->buffer + 1 + urlsize;
|
|
|
+ tmp->usn = tmp->st + 1 + stsize;
|
|
|
+ memcpy(tmp->buffer, descURL, urlsize);
|
|
|
+ tmp->buffer[urlsize] = '\0';
|
|
|
+ memcpy(tmp->st, st, stsize);
|
|
|
+ tmp->buffer[urlsize+1+stsize] = '\0';
|
|
|
+ if(usn != NULL)
|
|
|
+ memcpy(tmp->usn, usn, usnsize);
|
|
|
+ tmp->buffer[urlsize+1+stsize+1+usnsize] = '\0';
|
|
|
+ tmp->scope_id = scope_id;
|
|
|
+ devlist = tmp;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ } while(n > 0);
|
|
|
+ if(ipv6) {
|
|
|
+ /* switch linklocal flag */
|
|
|
+ if(linklocal) {
|
|
|
+ linklocal = 0;
|
|
|
+ --deviceIndex;
|
|
|
+ } else {
|
|
|
+ linklocal = 1;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+error:
|
|
|
+ closesocket(sudp);
|
|
|
+ return devlist;
|
|
|
+}
|
|
|
+
|