172, 5/9 ȸ¿ø°¡ÀÔ  ·Î±×ÀΠ 
   dreadlo
   ¼ÒÄÏ ÇÁ·Î±×·¡¹Ö~??

http://www.hackerschool.org/HS_Boards/zboard.php?id=QNA_Network&no=94 [º¹»ç]


#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <sys/socket.h>
void error_handling(char *message);

int main(int argc, char *argv[])
{
        int serv_sock;
        int clnt_sock;

        struct sockaddr_in serv_addr;
        struct sockaddr_in clnt_addr;
        socklen_t clnt_addr_size;

        char message[]="Hello World!";

        if(argc!=2)
        {
                printf("Usage : %s <port>\n", argv[0]);
                exit(1);
        }

        serv_sock=socket(PF_INET, SOCK_STREAM, 0);
        if(serv_sock == -1)
                error_handling("socket() error!");

        memset(&serv_addr, 0, sizeof(serv_addr));
        serv_addr.sin_family=AF_INET;
        serv_addr.sin_addr.s_addr=htonl(INADDR_ANY);
        serv_addr.sin_port=htons(atoi(argv[1]));

        if(bind(serv_sock, (struct sockaddr*) &serv_addr, sizeof(serv_addr))==-1);
                error_handling("bind() error!");

        if(listen(serv_sock, 5) == -1)
                error_handling("listen() error!");

        clnt_addr_size=sizeof(clnt_addr);
        clnt_sock=accept(serv_sock, (struct sockaddr*)&clnt_addr, &clnt_addr_size);
        if(clnt_sock == -1)
                error_handling("accept() error!");

        write(clnt_sock, message, sizeof(message));
        close(clnt_sock);
        close(serv_sock);
        return 0;
}

void error_handling(char *message)
{
        fputs(message, stderr);
        fputc('\n', stderr);
        exit(1);
}




---------------------------------------------------------------------------------------------------------
¸®´ª½º¿¡¼­ ¼­¹ö¸¦ ½ÇÇàÇÏ·Á´Âµ¥


bind error  ÀÚ²Ù ³ª³×¿ä


¾Æ¹«¸® ã¾ÆºÁµµ ¹®Á¦Á¡ÀÌ ¾ø´Âµ¥ ¤Ì.¤Ì

gcc -o hserver hello_server.c      <- ÀÌ·¸°Ô ÄÄÆÄÀÏÇؼ­
./hserver 9190                         <- Æ÷Æ®¹øÈ£ Àû¾î¼­ ½ÇÇàÇߴµ¥;;;
bind() error!


¸î½Ã°£Â° Çì¸Å³×¿ä ¤Ð.¤Ð

  Hit : 3486     Date : 2012/09/05 10:26



    
phillip474 Ȥ½Ã 9190Æ÷Æ®¸¦ »ç¿ëÇÏ°í ÀÖ´Â°Ô ¾Æ´Ò±î¿ä....
ÇãÁ¢ÀÇ ÂªÀº »ý°¢ÀÔ´Ï´Ù.
2012/09/06  
dreadlo ±×·¡¼­ ´Ù¸¥ Æ÷Æ®¸¦ ½áºÁµµ ... ¤Ì.¤Ì 2012/09/07  
92   ¿ÜºÎ¿Í ³×Æ®¿÷ÀÌ µÇ´ÂÁö ¾ÈµÇ´ÂÁö È®Àιæ¹ýÀº?[3]     huchik
05/15 3290
91   backtrack 5 ¿¡ ÀÖ´Â ettercap Áú¹®ÀÔ´Ï´Ù.     pk920207
05/09 3897
90   ftp °¡ anonymous·Î ¿­¸°¼­¹ö·Î ħÅõ°¡ °¡´ÉÇÒ±î¿ä???     kavenger
05/01 3031
89   ¹éÆ®·¢ ½Ç½À¿ë USB ·£Ä«µå ÃßÀü ºÎŹµå¸³´Ï´Ù.[2]     ifocean
04/16 5030
88   mylg070 º¸¾È¼³Á¤ Áú¹®.     ien0l5uf
04/16 4254
87   UDP Flooding ¹æ¾î±â¹ý.     stares
04/14 4419
86   ³×Æ®¿öÅ© ÇØÅ·À» À§Çؼ­ ÇÊ¿äÇÑ ±âÃÊ°¡ ¹«¾ùÀÌÁÒ?[3]     hansu9911
04/01 3661
85   ¿ÜºÎÄÄÇ»ÅÍ Á¢¼Ó[1]     choisunho
02/27 3591
84   ¿ìºÐÅõ wpa/wpa2 handshake ¼ø°£ÀÌ!!![1]     pass-3-
02/27 3586
83   ÇØÅ·À» À§ÇÑ ³×Æ®¿öÅ©¿¡ ´ëÇØ °³³äÀ» Àâ°í½Í½À´Ï´Ù[1]     rowel
02/17 2919
82   SQL ÀÎÁ§¼Ç Áú¹®ÀÌ¿ä!!!![1]     skrillex
01/22 2916
81   ³×Æ®¿öÅ© ¶ó¿ìÅÍÀÇ ±â´É[1]     woals3006
12/24 3257
80   NC¼ÒÇÁÆ®¸¦ »ó´ë·Î ¼Ò¼Û ÁغñÁß¿¡ ÀÖ½À´Ï´Ù.[1]     TOGEACE
12/09 3587
79   ¼ÒÄÏÇÁ·Î±×·¡¹Ö ¿À·ùÁ»Ã£¾ÆÁÖ¼¼¿ä~¤Ð[2]     han7685
11/19 3073
78   ³×Æ®¿öÅ© ¼­Àû ¹× Áøµµ°ü·Ã..[1]     ISHack
11/02 3087
77   Network ±âº»ÀûÀÎ?     ISHack
10/29 2774
76   vmWare¸¸ °¡Áö°í ³×Æ®¿öÅ© ÇØÅ· ¿¬½ÀÀ» ÇÒ ¼ö ÀÖ³ª¿ä??[1]     darkofgy
10/13 3572
75   °©Àڱ⠰øºÎÇÏ´Ù°¡ ±Ã±ÝÇÑ°Ô »ý°Ü¼­ ±Û¿Ã¸³´Ï´Ù     hyde0401
09/09 3049
74   IPFW°ü·Ã Áú¹®ÀÔ´Ï´Ù!!!     4class
09/06 2746
  ¼ÒÄÏ ÇÁ·Î±×·¡¹Ö~??[2]     dreadlo
09/05 3485
[1][2][3][4] 5 [6][7][8][9]

Copyright 1999-2024 Zeroboard / skin by Hackerschool.org / Secure Patch by Hackerschool.org