{"id":141,"date":"2009-11-09T18:39:05","date_gmt":"2009-11-09T18:39:05","guid":{"rendered":"http:\/\/kumouse.aafox.com\/?p=141"},"modified":"2009-11-09T18:39:05","modified_gmt":"2009-11-09T18:39:05","slug":"%e4%b8%80%e4%b8%aa%e6%9c%8d%e5%8a%a1%e5%99%a8%e6%a8%a1%e5%9e%8b%e7%9a%84%e6%b5%8b%e8%af%95%ef%bc%88%e4%be%8b%e5%ad%90%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.kumouse.com\/?p=141","title":{"rendered":"\u4e00\u4e2a\u670d\u52a1\u5668\u6a21\u578b\u7684\u6d4b\u8bd5\uff08\u4f8b\u5b50\uff09"},"content":{"rendered":"

\u670d\u52a1\u5668\u7aef:
[ssj@main test]$ cat easyserver.c
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <ctype.h>
#include <sys\/socket.h>
#include <arpa\/inet.h>
#include <string.h>
#define MAX 200 \/*\u7f13\u51b2\u533a\u5927\u5c0f*\/
#define BB 16 \/*IP\u5730\u5740\u957f\u5ea6 IPV4\u662f16,IPV6\u662f28*\/
void my_turn(char *p) \/*\u5b57\u7b26\u5904\u7406\u51fd\u6570\uff0c\u5c0f\u5199\u53d8\u5927\u5199\uff0clinux\u4e0b\u6ca1\u6709strupr\u4e86\uff1f\uff1f\uff1f*\/
{
if (p == NULL)return;
while( *p != '\u0000')
{
if( *p >= (char)0x61 && *p <= (char)0x7a)
*p=(char)((int)*p-(int)0x20);
p++;
}
}<\/p>\n

int main(void)
{
struct sockaddr_in sin,cin; \/*sin\u672c\u5730IP\u5730\u5740\u7ed3\u6784\uff0ccin\u5ba2\u6237\u7aefIP\u5730\u5740\u7ed3\u6784*\/
int lfd,cfd; \/*lfd\u672c\u5730socket\u5957\u63a5\u5b57\u63cf\u8ff0\u7b26\uff0ccfd\uff0c\u7531accept\u5efa\u7acb\u7684*\/
socklen_t len; \/*\u5ba2\u6237\u7aefIP\u957f\u5ea6*\/
char buf[MAX]; \/*\u7f13\u51b2\u533a*\/
char addr_p[BB]; \/*IP\u5730\u5740\u5341\u8fdb\u5236\u5b57\u7b26\u4e32*\/
int port = 65533; \/*\u7ed1\u5b9a\u7684\u7aef\u53e3*\/
int n; \/*\u6536\u5230\u7684\u6570\u636e\u957f\u5ea6*\/
bzero(&sin,sizeof(sin)); \/*\u521d\u59cb\u5316sin*\/
sin.sin_family=AF_INET; \/*\u5b9a\u4e49\u4e3aIPV4*\/
sin.sin_addr.s_addr=INADDR_ANY; \/*\u670d\u52a1\u5668\u53ef\u4ee5\u63a5\u53d7\u4efb\u610f\u5730\u5740*\/
sin.sin_port=htons(port); \/*\u628aIP\u5730\u5740\u8f6c\u670916\u4f4d\u5b57\u8282\u5e8f\uff0c\u5e76\u8d4b\u503c*\/<\/p>\n

lfd=socket(AF_INET,SOCK_STREAM,0); \/*\u5efa\u7acb\u5957\u63a5\u5b57*\/
bind(lfd,(struct sockaddr *)&sin,sizeof(sin)); \/*\u7ed1\u5b9a\u7aef\u53e3\u4e0e\u5957\u63a5\u5b57*\/
listen(lfd,10); \/*\u76d1\u542c\uff0c\u5e76\u8bbe\u7f6e\u6700\u5927\u961f\u5217\u4e3a10*\/
printf("running……….n");<\/p>\n

while(1) \/*\u5faa\u73af\u5904\u7406\u5ba2\u6237\u7684\u8fde\u63a5\u8bf7\u6c42*\/
{
cfd=accept(lfd,(struct sockaddr *)&cin,&len);
n=read(cfd,buf,MAX);
inet_ntop(AF_INET,&cin.sin_addr,addr_p,sizeof(addr_p));
printf("client IP is:%s:%d size:%dn",addr_p,ntohs(cin.sin_port),n);
if (strcmp(buf,"close")==0) \/*\u662f\u5426\u9000\u51fa*\/ <\/span>
{
write(cfd,"server done",12);
close(cfd);
close(lfd);
printf("server done.n");
exit(0);
}
printf("type:%sn",buf);
my_turn(buf);
printf("turn type:%sn=================================n",buf);
write(cfd,buf,n);
close(cfd);
}
if(close(lfd)==-1) \/*\u6536\u5c3e\uff0c\u5b9e\u9645\u4e0a\uff0c\u4e0a\u8fb9\u7684while\u662f\u4e2a\u6b7b\u5faa\u73af\uff0c\u7528ctrl+c\u9000\u51fa\uff0c\u6216\u7528close\u9000\u51fa\uff0c\u90fd\u6267\u884c\u4e0d\u5230\u8fd9\u91cc*\/ <\/span>
{
perror("fail close");
exit(1);
}
return 0;
}<\/p>\n

\u5ba2\u6237\u7aef:
[ssj@main test]$ cat easyclient.c
#include <stdio.h>
#include <unistd.h>
#include <sys\/types.h>
#include <sys\/socket.h>
#include <arpa\/inet.h>
#include <string.h>
#define MAX 200<\/p>\n

int main(int argc,char * argv[])
{
struct sockaddr_in pin;
struct sockaddr_in *apin=&pin;
char buf[MAX];
int sfd,port=65533;
char *str="ssj test";<\/p>\n

if (argc>1)
{
str=argv[1];
}
bzero(&pin,sizeof(pin));
pin.sin_family=AF_INET;
inet_pton(AF_INET,"127.0.0.1",&pin.sin_addr);
pin.sin_port=htons(port);<\/p>\n

sfd=socket(AF_INET,SOCK_STREAM,0);
connect(sfd,(struct sockaddr *)&pin,sizeof(pin));
write(sfd,str,strlen(str)+1);
read(sfd,buf,MAX);
printf("recive:%sn",buf);
close(sfd);
return 0;
}<\/p>\n

======================================
\u66f4\u5b8c\u5584\u7684\u4e00\u4e2a\u7248\u672c\uff08\u670d\u52a1\u5668\uff09
[ssj@main test]$ cat easyserver.c
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <ctype.h>
#include <sys\/socket.h>
#include <arpa\/inet.h>
#include <string.h>
#include "ssjio.c"
#define MAX 200
#define BB 16
void my_turn(char *p)
{
if (p == NULL)return;
while( *p != '\u0000')
{
if( *p >= (char)0x61 && *p <= (char)0x7a)
*p=(char)((int)*p-(int)0x20);
p++;
}
}<\/p>\n

int main(void)
{
struct sockaddr_in sin,cin;
int lfd,cfd;
socklen_t len;
char buf[MAX];
char addr_p[BB];
int port = 65533;
int n;
bzero(&sin,sizeof(sin));
sin.sin_family=AF_INET;
sin.sin_addr.s_addr=INADDR_ANY;
sin.sin_port=htons(port);<\/p>\n

if((lfd=socket(AF_INET,SOCK_STREAM,0))==-1)
{
perror("Fail to create socket");
exit(1);
}<\/p>\n

if(bind(lfd,(struct sockaddr *)&sin,sizeof(sin))==-1)
{
perror("Fail to bind");
exit(1);
}
if(listen(lfd,10)==-1)
{
perror("Fail to listen");
exit(1);
}
printf("running……….n");<\/p>\n

while(1)
{
if((cfd=accept(lfd,(struct sockaddr *)&cin,&len))==-1)
{
perror("Fail to accept");
exit(1);
}<\/p>\n

n=ssj_read(cfd,buf,MAX);
if (n==-1)
exit(1);
else if(n==0)
{
printf("the connect closedn");
close(cfd);
continue;
}<\/p>\n

inet_ntop(AF_INET,&cin.sin_addr,addr_p,sizeof(addr_p));
printf("client IP is:%s:%d size:%dn",addr_p,ntohs(cin.sin_port),n);
if (strcmp(buf,"close")==0)
{
n=ssj_write(cfd,"server done",12);
if(n==-1)
exit(1);
close(cfd);
close(lfd);
printf("server done.n");
exit(0);
}
printf("type:%sn",buf);
my_turn(buf);
printf("turn type:%sn=================================n",buf);
n=ssj_write(cfd,buf,n);
if(n==-1)
exit(1);<\/p>\n

if(close(cfd)==-1)
{
perror("Fail to close");
exit(1);
}
}
if(close(lfd)==-1)
{
perror("fail close");
exit(1);
}
return 0;
}<\/p>\n

\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d
[ssj@main test]$ cat ssjio.c
#include <errno.h>
#include <fcntl.h>
#include <unistd.h><\/p>\n

ssize_t ssj_read(int fd,void *buf,size_t length)
{
ssize_t done=length;
done=read(fd,buf,length);
return done;
}<\/p>\n

ssize_t ssj_write(int fd,void *buf,size_t length)
{
ssize_t done=length;
while(done>0)
{
done=write(fd,buf,length);
if(done!=length)
if (errno==EINTR)
done=length;
else{
perror("Fail to write");
return -1;
}
else
break;
}
return done;
}<\/p>\n

\u5ba2\u6237\u7aef\u540c\u7406<\/p>\n","protected":false},"excerpt":{"rendered":"

\u670d\u52a1\u5668\u7aef:[ssj@main test]$ cat easyserver.c#include <stdi […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-141","post","type-post","status-publish","format-standard","hentry","category-linux-c"],"_links":{"self":[{"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/posts\/141","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=141"}],"version-history":[{"count":0,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/posts\/141\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.kumouse.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=141"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=141"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=141"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}