socket程序有错，大伙帮忙看看！ - C/C++ (STL/boost)

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发表于 2008-3-18 10:06 资料个人空间短消息加为好友

socket程序有错，大伙帮忙看看！

#include <sys/socket.h>"Hi@.?{:q
#include <unistd.h>
#include <stdio.h>9OJ c*va O2S
#include <stdlib.h>
#include <sys/types.h>
#include <netdb.h>2y6F*b,?.m5VA2s4|"z
#include <netinet/in.h>r{6mq)Hf5?$[l
#include <string.h>

#define IP "192.168.1.1"

int main(int ac,char* av){
int s,cnt,port=0;
struct sockaddr_in addr;
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s=socket(PF_INET,SOCK_STREAM,0); F)eD1|8Rb)M^
if(s==-1){printf("sock err!");_exit(1);};{/SM;Gk1j

printf("input port number:");
www.linuxeden.com;S4wU1y6[
scanf("%d",&port);
printf("test!");q#b3w#^A w

addr.sin_family=AF_INET;5JLH~~X
addr.sin_port=htons(port);
addr.sin_addr.s_addr=inet_addr(IP);'f8N9V/g/K9H
printf("test!");
cnt=connect(s,(struct sockaddr *)&addr,sizeof addr);.n&Q%u)_7Q~Nw

if(cnt==-1){printf("connetc err!");_exit(1);}Linux伊甸园论坛uX!j2D.b|qN
else{)n/g3`HX
printf("\nport %d open!",port);0l p$EU'LK@3~}
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close(s);
return 0;
}

结果是：
debian:/program#./shiy
input port number:21
debian:/program#

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dearvoid

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Clark J. Wang

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发表于 2008-3-18 19:23 资料个人空间短消息加为好友

什么错误?

QUOTE:

-(dearvoid@LinuxEden:Forum)-(~/tmp)-
[$$=18795 $?=0] ; cat foo.c

#include <sys/socket.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <netdb.h>$NrGNS+k
#include <netinet/in.h>1Q@g4K*ZLWR+g
#include <string.h>
#include <sys/types.h>%NCJ!e&jT6H^1D
#include <netinet/in.h>
#include <arpa/inet.h>
2p~d_3~iA.@
#define IP "140.186.70.20" // ftp.gnu.org

int
main(int ac, char **av)Linux伊甸园论坛S!s jm7v
?
{Linux伊甸园论坛`3YKPoDx
int s, cnt, port = 0;www.linuxeden.com_1sZ6gA*]Q'p M
struct sockaddr_in addr;9ji5U\B+n
6gBRH!v,^#A
s = socket(PF_INET, SOCK_STREAM, 0);www.linuxeden.com^&P0K8@H
if (s == -1) {www.linuxeden.compC$B)[i!^wC
      printf("sock err!");
      _exit(1); n*L9xj1g.j2]
};

printf("input port number:");;{o!?0U&Q;P;e

h@/^ RoCx(m-`
[
scanf("%d", &port);
printf("test!");bKXt5GI#M
'W-BH.T{bI!`(f4O8E
addr.sin_family = AF_INET; C+Kp[7Y
addr.sin_port = htons(port);Linux伊甸园论坛UWZ(h!b,E)G5a8?
addr.sin_addr.s_addr = inet_addr(IP);
printf("test!");P"@2]J9G:]
cnt = connect(s, (struct sockaddr *) &addr, sizeof addr);
']Ymg7HB
if (cnt == -1) {
      printf("connetc err!");
      _exit(1);!XnyMv.g
} else {UY9y.Ad.P
      printf("\nport %d open!\n", port); k5S4pTRT"Y
};N0t e)C/^4V&|
U^Q#uE
close(s);
return 0;2?/L.O\wA2O
}
-(dearvoid@LinuxEden:Forum)-(~/tmp)-
[$$=18795 $?=0] ; gcc foo.c
-(dearvoid@LinuxEden:Forum)-(~/tmp)-www.linuxeden.comAH6y#e6^R"c
[$$=18795 $?=0] ; ./a.outLinux伊甸园论坛qn ce
Mk;z
input port number:21
test!test!-{@[~E'MC4S
port 21 open!
-(dearvoid@LinuxEden:Forum)-(~/tmp)-
[$$=18795 $?=0] ; bye

,w$e A_oXf/RnJ
[ 本帖最后由 dearvoid 于 2008-3-18 19:29 编辑 ]

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