Linux socket API ʹÓÃʵÀý
°´ÏÂÃæ²½ÖèÀ´×ö£¬¿ÉÒÔ¼òµ¥ÌåÑésocket APIµÄʹÓ᣾ßÌ庯ÊýµÄÒâÒ壬Çë²Î¿¼ÆäËû˵Ã÷Îĵµ¡£
ÏÂÃæµÄº¯ÊýÖ±½Ócopy, paste¾Í¿ÉÒÔÁË¡£
Step1. ´´½¨Server ³ÌÐò¡£
н¨Îļþsocket_s.c, ÄÚÈÝÈçÏ£º
-------------------------------------------
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#define PORT 2323
#define SERVER_IP "192.168.1.101"
int main()
{
int s, s2;
struct sockaddr_in addr;
struct sockaddr_in addr2;
char buffer[256];
int sin_size;
if((s=socket(AF_INET, SOCK_STREAM, 0))<0)
{
printf("creat socket error!\n");
perror("socket");
exit(1);
}
bzero(&addr, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_port = htons(PORT);
addr.sin_addr.s_addr = inet_addr(SERVER_IP);
bzero(&(addr.sin_zero), 8);
if(bind(s, (struct sockaddr *)&addr, sizeof(struct sockaddr))==-1)
{
perror("bind socket error!");
exit(1);
}
if(listen(s, 10) == -1)
{
perror("LISTEN");
exit(1);
}
while(1)
{
sin_size = sizeof(struct sockaddr_in);
printf("server is run\n");
Ïà¹ØÎĵµ£º
×ÜÀÀ
ÓÃiptables -ADC À´Ö¸¶¨Á´µÄ¹æ
Ôò
£¬-AÌí¼Ó -Dɾ³ý -C ÐÞ¸Ä
iptables - [RI] chain rule num rule-specification[option]
ÓÃiptables - RI ͨ¹ý¹æÔòµÄ˳ÐòÖ¸¶¨
iptables -D chain rule num[option]
ɾ³ýÖ¸¶¨¹æÔò
iptables -[LFZ] [chain][option]
ÓÃiptables -LFZ Á´Ãû [Ñ¡Ïî]
iptables -[NX] chain
ÓÃ -NX ......
½ñÌìʹÓÃselect±à³Ì£¬ÎÊÌâºÜ¶à£¬ÒÔÇ°ÕæµÄûÓÐ×ÐϸÑо¿¹ý¡£
³öÏÖÁËÒÔϼ¸¸öÎÊÌâ
1 recvfromÔÚ½ÓÊÕʱ£¬Ìṩ¸øÏµÍ³µ÷ÓõÄ×îºóÒ»¸ö²ÎÊý£¬¿Í»§¶ËµÄµØÖ·½á¹¹£¬Æä³¤¶È±ØÐë½øÐгõʼ»¯£¬Èç¹ûΪ0£¬Ôò²»ÄܽÓÊÕÊý¾Ý¡£
2 selectµÄµÚÒ»¸ö²ÎÊýΪËùÓмàÊÓµÄÎļþÃèÊö·ûµÄ×î´óÖµ+1£¬¶ø²»ÊǼàÊÓµÄÎļþÃèÊö·û¸öÊý+1¡£
3 ²»Òª¼àÊÓÄÇЩ¾³£¿ÉÓ ......
¹ØÓÚLinuxÄÚºËѧϰµÄÎóÇøÒÔ¼°Ïà¹ØÊé¼®½éÉÜ
·¢ ²¼ ʱ ¼ä :
2008-11-19
À´ Ô´ :
À´×ÔÍøÂç
×÷ Õß :
ÄäÃû
ä¯ ÀÀ :
1053
д¸øLinuxÄÚºËÐÂÊÖ-¹ØÓÚLinuxÄÚºËѧϰµÄÎóÇø
¡¡¡¡ÏÈ˵¾äÕý¾µÄ£ºÆäʵÎÒû×ʸñдÕâÆªÎÄÕ£¬ÒòΪ×Ô¼ºÒ²¾ÍÒ»Á½¸öÔÂÒÔÀ´²Å¿ ......
´ó¼Ò¶¼ÖªµÀÐÞ¸ÄlinuxϵÄDNS¿ÉÒÔÖ±½ÓÐÞ¸Ä/etc/resolv.conf:
root@xuanfei-desktop:~#vim /etc/resolv.conf
nameserver ip //ÌîÉÏÄãµ±µØÊ¹ÓõÄ×î¿ìDNS·þÎñÆ÷IPµØÖ·
nameserver ip
µ±È»Ò²¿ÉÒÔÖ±½ÓʹÓÃÍøÂç¹ÜÀíÆ÷Ð޸ġ£
µ«ÊÇÈç¹ûÄãËùÔÚ»ú¹¹»òÕß¹¤×÷µÄµØ·½±ØÐëÒªÇóÄãÓÃDHCP»ñµÃ×Ô¼º·Ç¹Ì¶¨¶¯Ì¬IP ......
Ŀǰ£¬GCC¿ÉÒÔÓÃÀ´±àÒëC/C++¡¢FORTRAN¡¢JAVA¡¢OBJC¡¢ADAµÈÓïÑԵijÌÐò£¬¿É¸ù¾ÝÐèҪѡÔñ°²×°Ö§³ÖµÄÓïÑÔ¡£±¾ÎÄÒÔÔÚRedhat LinuxÉϰ²×°GCC4.1.2ΪÀý(ÒòÔÚÏîÄ¿¿ª·¢¹ý³ÌÖÐÒªÇóʹÓã¬Ã»ÓÐÓÃ×îеÄGCC°æ±¾)£¬½éÉÜGCCµÄ°²×°¹ý³Ì¡£
°²×°Ö®Ç°£¬ÏµÍ³ÖбØÐëÒªÓÐcc»òÕßgccµÈ±àÒëÆ÷£¬²¢ÇÒÊÇ¿ÉÓõ쬻òÕßÓû·¾³±äÁ¿CCÖ¸¶¨ÏµÍ³ÉϵıàÒëÆ÷¡£È ......