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ÔÚlinuxÏ »ñÈ¡£¬ÐÞ¸ÄÍø¹ØGateWayµÄÁ½¸öº¯Êý

//»ñÈ¥GateWay
QString GetGateWay()
{
FILE *fp;
char buf[512];
char cmd[128];
char gateway[30];
char *tmp;
strcpy(cmd, "ip route");
fp = popen(cmd, "r");
if(NULL == fp)
{
perror("popen error");
return "";
}
while(fgets(buf, sizeof(buf), fp) != NULL)
{
tmp =buf;
while(*tmp && isspace(*tmp))
++ tmp;
if(strncmp(tmp, "default", strlen("default")) == 0)
break;
}
sscanf(buf, "%*s%*s%s", gateway);
printf("default gateway:%s\n", gateway);
pclose(fp);

return QString(gateway);
}
//ÉèÖÃÍø¹Ø
int SetGateWay(const char *szGateWay)
{
int ret = 0;
char cmd[128];
QString DefGW = GetGateWay();
const char *strGW = DefGW.latin1();

strcpy(cmd, "route del default gw ");
strcat(cmd, strGW);
ret = system(cmd);
if(ret < 0)
{
perror("route error");
return -1;
}
strcpy(cmd, "route add default gw ");
strcat(cmd, szGateWay);

ret = system(cmd);
if(ret < 0)
{
perror("route error");
return -1;
}
return ret;
}


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kscope×îа²×°°æ±¾kscope-1.6.2.tar.gz
http://download.chinaunix.net/download/0006000/5469.shtml
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 *
 *  (C) 1991  Linus Torvalds
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