diff options
Diffstat (limited to 'tools/vdrdiscovery.c')
| -rw-r--r-- | tools/vdrdiscovery.c | 38 |
1 files changed, 34 insertions, 4 deletions
diff --git a/tools/vdrdiscovery.c b/tools/vdrdiscovery.c index 8c951e20..2383130d 100644 --- a/tools/vdrdiscovery.c +++ b/tools/vdrdiscovery.c @@ -7,7 +7,7 @@ * See the main source file 'xineliboutput.c' for copyright information and * how to reach the author. * - * $Id: vdrdiscovery.c,v 1.2 2007-01-01 08:11:51 phintuka Exp $ + * $Id: vdrdiscovery.c,v 1.3 2007-06-11 16:40:43 phintuka Exp $ * */ @@ -18,6 +18,7 @@ #include <netinet/in.h> #include <sys/socket.h> #include <sys/un.h> +#include <arpa/inet.h> #ifdef FE_STANDALONE # define LOG_MODULENAME "[discovery] " @@ -40,8 +41,9 @@ /* discovery protocol strings (v1.0) */ #define DISCOVERY_1_0_HDR "VDR xineliboutput DISCOVERY 1.0" "\r\n" -#define DISCOVERY_1_0_CLI "Client: %s:%d" "\r\n" -#define DISCOVERY_1_0_SVR "Server port: %d" "\r\n" +#define DISCOVERY_1_0_CLI "Client: %s:%d" "\r\n" +#define DISCOVERY_1_0_SVR "Server port: %d" "\r\n" +#define DISCOVERY_1_0_ADDR "Server address: %s" "\r\n" #define DISCOVERY_1_0_VERSION "Server version: " /*vdr-" VDRVERSION "\r\n\t"*/ \ "xineliboutput-" XINELIBOUTPUT_VERSION "\r\n" @@ -219,13 +221,41 @@ int udp_discovery_find_server(int *port, char *address) ((tmp>>8)&0xff), ((tmp)&0xff), buf); if(!strncmp(mystring, buf, strlen(mystring))) { + char *iploc; LOGDBG("Valid discovery message"); close(fd_discovery); + + // default: use broadcast source address sprintf(address, "%d.%d.%d.%d", ((tmp>>24)&0xff), ((tmp>>16)&0xff), ((tmp>>8)&0xff), ((tmp)&0xff)); - if(1 == sscanf(buf + strlen(mystring), "%d", port)) + + // Check if announce message includes alternative server address + iploc = strstr(buf + strlen(mystring), "Server address: "); + if(iploc) { + uint32_t svraddr; + iploc += strlen("Server address: "); + svraddr = inet_addr(iploc); + if(svraddr == INADDR_NONE) { + LOGMSG("Server provided invalid address !"); + } else { + svraddr = ntohl(svraddr); + sprintf(address, "%d.%d.%d.%d", + ((svraddr>>24)&0xff), ((svraddr>>16)&0xff), + ((svraddr>>8)&0xff), ((svraddr)&0xff)); + LOGMSG("Replacing broadcast source address %d.%d.%d.%d " + "with server-given address %s", + ((tmp>>24)&0xff), ((tmp>>16)&0xff), + ((tmp>>8)&0xff), ((tmp)&0xff), + address); + } + } + + *port = -1; + if(1 == sscanf(buf + strlen(mystring), "%d", port) && + *port >= 1000 && *port <= 0xffff) return 1; + LOGMSG("Server-given port is invalid !"); } else { LOGDBG("NOT valid discovery message"); } |