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Sourcecode: pcsc-lite version File versions  Download package

winscard_msg.c File Reference


Detailed Description

This is responsible for client/server communication.

A file based socket (commonSocket) is used to send/receive only messages among clients and server.
The messages' data are passed throw a memory mapped file: sharedSegmentMsg.

Definition in file winscard_msg.c.

#include "config.h"
#include <fcntl.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <sys/un.h>
#include <sys/ioctl.h>
#include <errno.h>
#include <stdio.h>
#include <time.h>
#include <string.h>
#include "pcsclite.h"
#include "winscard.h"
#include "debuglog.h"
#include "winscard_msg.h"
#include "sys_generic.h"
#include "misc.h"

Go to the source code of this file.

Functions

INTERNAL void SHMCleanupSharedSegment (int sockValue, char *pcFilePath)
 Closes the communications channel used by the server to talk to the clients.
INTERNAL int SHMClientCloseSession (DWORD dwClientID)
 Closes the socket used by the client to communicate with the server.
INTERNAL int SHMClientRead (psharedSegmentMsg msgStruct, DWORD dwClientID, int blockamount)
 Wrapper for the SHMMessageReceive() function.
INTERNAL int SHMClientSetupSession (PDWORD pdwClientID)
 Prepares a communication channel for the client to talk to the server.
INTERNAL int SHMMessageReceive (psharedSegmentMsg msgStruct, int filedes, int blockAmount)
 Called by the Client to get the reponse from the server or vice-versa.
INTERNAL int SHMMessageSend (psharedSegmentMsg msgStruct, int filedes, int blockAmount)
 Sends a menssage from client to server or vice-versa.
INTERNAL int WrapSHMWrite (unsigned int command, DWORD dwClientID, unsigned int size, unsigned int blockAmount, void *data)
 Wrapper for the SHMMessageSend() function.


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