klaunchserver.old

来自「在XWindows下使用打印机界面发送传真」· OLD 代码 · 共 116 行

#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>

static int socketFd = -1;
static int acceptFd = -1;

static int createSocket(int argc, char **argv);
static int closeSocket(void);
static int acceptConnection(void);
static int handleRequest(void);
static void closeConnection(void);

int main(int argc, char **argv)
{
	int rv = 0;

	if (!createSocket(argc, argv))
	{
		return -1;
	}
	while (1)
	{
		if (!acceptConnection())
		{
			rv = -2;
			break;
		}
		if (!handleRequest())
		{
			rv = -3;
			break;
		}
		closeConnection();
	}
	closeSocket();
	
	return rv;
}

static int createSocket(int argc, char **argv)
{
	int rv = 0;
	struct sockaddr_in sa;
	int portInt = 6666;

	if (argc < 2)
	{
		return rv;
	}
	portInt = atoi(argv[1]);

	socketFd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
	if (socketFd < 0)
	{
		return rv;
	}
	sa.sin_family      = AF_INET;
	sa.sin_port        = htons(portInt);
	sa.sin_addr.s_addr = htonl(INADDR_ANY);
	if (bind(socketFd, (struct sockaddr *)&sa, sizeof(struct sockaddr))
		< 0)
	{
		return rv;
	}
	if (listen(socketFd, 10) < 0)
	{
		return rv;
	}
	rv = 1;
	return rv;
}

static int closeSocket(void)
{
	(void)close(socketFd);
}

static int acceptConnection(void)
{
	int rv = 1;
	struct sockaddr_in sa;
	int saSize;

	acceptFd = accept(socketFd, &sa, &saSize);
	if (acceptFd < 0)
	{
		rv = 0;
	}
	return rv;
}

static int handleRequest(void)
{
	int rv = 0;
	char request[2048];

	if (read(acceptFd, request, 2047) < 0)
	{
		return;
	}
	printf("accept: %s\n", request);

	(void)system(request);

	rv = 1;
	return rv;
}

static void closeConnection(void)
{
	(void)close(acceptFd);
}