cでズンドコゲッター

概要

paizaのcでズンドコゲッターやってみた。

実際

サンプルコード

# include <stdio.h>
# include <stdlib.h>
# include <time.h>
# include <string.h>
# include <sys/types.h>
# include <sys/socket.h>
# include <netinet/in.h>
# include <arpa/inet.h>
# include <netdb.h>

char * zundoko(void)
{
    struct sockaddr_in server;
    int sock;
    char buf[256];
    char * deststr = "ohijs0.paas.jp-e1.cloudn-service.com";
    unsigned int ** addrptr;
    sock = socket(AF_INET, SOCK_STREAM, 0);
    if (sock < 0) 
    {
	    perror("socket");
	    return 1;
    }
    server.sin_family = AF_INET;
    server.sin_port = htons(80);
    server.sin_addr.s_addr = inet_addr(deststr);
    if (server.sin_addr.s_addr == 0xffffffff) 
    {
	    struct hostent * host;
	    host = gethostbyname(deststr);
	    if (host == NULL) 
	    {
		    if (h_errno == HOST_NOT_FOUND) 
		    {
			    printf("host not found : %s\n", deststr);
		    } 
		    else 
		    {
			    printf("%s : %s\n", hstrerror(h_errno), deststr);
		    }
		    return 1;
	    }
	    addrptr = (unsigned int **) host->h_addr_list;
	    while (* addrptr != NULL) 
	    {
		    server.sin_addr.s_addr = * (* addrptr);
    	    if (connect(sock, (struct sockaddr *) &server, sizeof(server)) == 0) 
    	    {
			    break;
		    }
		    addrptr++;
	    }
	    if (* addrptr == NULL) 
	    {
		    perror("connect");
		    return 1;
	    }
	    else
	    {
	        //printf("ok connect\n");
	    }
    } 
    else 
    {
	    if (connect(sock, (struct sockaddr *) &server, sizeof(server)) != 0) 
	    {
		    perror("connect");
		    return 1;
	    }
    }
    memset(buf, 0, sizeof(buf));
    snprintf(buf, sizeof(buf), "GET /zundoko HTTP/1.1\r\nHost: ohijs0.paas.jp-e1.cloudn-service.com\r\nUser-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)\r\n\r\n");
    int n = write(sock, buf, (int) strlen(buf));
    if (n < 0) 
    {
	    perror("write");
	    return 1;
    }
    else
    {
        //printf("ok write %d\n", n);
    }
    memset(buf, 0, sizeof(buf));
    n = read(sock, buf, sizeof(buf));
    if (n < 0) 
    {
	    perror("read");
	    return 1;
    }
    else
    {
        //printf("ok read %d\n", n);
    }
    char t[64];
    char * g;
    g = strstr(buf, "\r\n\r\n");
    g += 4;
    //puts(g);
    close(sock);
    return g;
}
int main() 
{
    int i = 0;
    int j = 0;
    printf("ここから　");
    while (j < 1) 
    {
        char * s = zundoko();
        printf("%s ", s);
        if (strcmp(s, "ドコ") == 0) 
        {
            if (i == 4) j = 1;
            i = 0;
        }
        else
        {
            i++;
        }
    }
    printf("キ・ヨ・シ！");
}