ofile.c

这是一个MINITGUI2。0的应用程序

#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <unistd.h>
char * file="/usr/local/etc/ipconfig";
int getipport(char *relip,char *relport){
	int fd;
	int num;
	int i = 1, j = 0;
	char buf[26];
	char ipbuf[20];
	char portbuf[5];
	char *ip;
	char *port;
	if((fd = open(file, O_RDONLY, 0)) < 0){
		printf("can't open file\n");
			//perror("open");
			return 1;
	}
	else{
		printf("\n\nopen the %s successful\n");
	}
	
	num = read(fd,buf,26);
	if(num < 0){
		printf("read err\n");
		return 2;
	}
	printf("read ok the data is %s",buf);
	while(buf[i]!='"'){
		
		ipbuf[i-1] = buf[i];
		i++;
		
	}
	ipbuf[i-1] = '\0';
	printf("\nlbub = %s",ipbuf);
	ip = ipbuf;
	printf ("\nthe ip is %s\n",ip);
	i = 0;
	while(buf[i++] != '*') ;
	for(j = 0;j<4;j++){
		portbuf[j] = buf[i++];
	}
	portbuf[j] = '\0';

	printf("\nportbuf = %s",portbuf);
	port = portbuf;
	printf("\nthe relport is %s\n",port);
	relip = ip;
	relport = port;
	close(fd);
	return 0;
}