liberdm/include/erdmServer.h File Reference

#include "erdm.h"
#include "erdminternal.h"

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Functions

int dmGetServerPort (int *port)

int initServer (int *sockfd, int local)

int dmMessageParser (char *szMessage, uDmCommand *dmCommand)

Function Documentation

int dmGetServerPort ( int * port )

Definition at line 37 of file erdmServer.c.

00038 {
00039     *port = DMPORT;
00040     return 0;
00041 }

int dmMessageParser	(	char *	szMessage,
		uDmCommand *	dmCommand
	)

Definition at line 297 of file erdmServer.c.

00298 {
00299     // The real parser....
00300     erDmCmd_t cmd;
00301     int     nRet;
00302 
00303     nRet = dmParseMessage(szMessage, &cmd);
00304     if (nRet != 0)
00305     {
00306         ERDM_ERRORPRINTF("dmParseMessage failed with errorcode %d", nRet);
00307         return -1;
00308     }
00309 
00310     nRet = dmParseCommand(&cmd, dmCommand);
00311     if (nRet != 0)
00312     {
00313         ERDM_ERRORPRINTF("dmParseCommand failed with errorcode %d", nRet);
00314         return -1;
00315     }
00316 
00317     nRet = dmValidateCommand(dmCommand);
00318     if (nRet != 0)
00319     {
00320         ERDM_ERRORPRINTF("dmValidateCommand failed with errorcode %d", nRet);
00321         return -1;
00322     }
00323     return 0;
00324 }

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int initServer	(	int *	sockfd,
		int	local
	)

Definition at line 47 of file erdmServer.c.

00048 {
00049     int     error;
00050     int     port;
00051     struct sockaddr_in serverAdr;
00052 
00053     *sockfd = socket(AF_INET, SOCK_DGRAM, 0);
00054     dmGetServerPort(&port);
00055 
00056     bzero(&serverAdr, sizeof(serverAdr));
00057     serverAdr.sin_family = AF_INET;
00058     // NOTE :
00059     //   Setting the address to INADDR_LOOPBACK will only allow processes running
00060     // on the same host to send messages to the displayMgrServer
00061     //   Setting the address to INADDR_ANY will allow a process on any host to 
00062     // send messages to the displayMgrServer
00063     if (local == 1)
00064     {
00065         serverAdr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
00066     }
00067     else
00068     {
00069         serverAdr.sin_addr.s_addr = htonl(INADDR_ANY);
00070     }
00071     serverAdr.sin_port = htons(port);
00072 
00073     error = bind(*sockfd, (struct sockaddr *) &serverAdr, sizeof(serverAdr));
00074     if (error)
00075     {
00076         perror("Error invoking bind");
00077         return -1;
00078     }
00079     else
00080     {
00081         char    szServerIP[INET_ADDRSTRLEN + 1];
00082 
00083         inet_ntop(AF_INET, &serverAdr.sin_addr, szServerIP, sizeof(szServerIP));
00084         ERDM_WARNPRINTF("Bound successfully to %s:%d.", szServerIP, port);
00085     }
00086     return 0;
00087 }

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Functions
int	dmGetServerPort (int *port)
int	initServer (int *sockfd, int local)
int	dmMessageParser (char szMessage, uDmCommand dmCommand)