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/**********************************************************************
* finger.c -- get a finger query
*
* Copyright 1994 by the Massachusetts Institute of Technology
* For copying and distribution information, please see the file
* <mit-copyright.h>.
**********************************************************************/
#include "mit-copyright.h"
static char rcsid[]="$Header: /mit/wwwdev/src/cgi/RCS/finger.c,v 1.2 95/01/23 18:09:52 brlewis Exp $";
#include <netdb.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <string.h>
int
finger(query, host, buf, bufsize)
char *query, *host, *buf;
int bufsize;
{
struct hostent *hp;
struct sockaddr_in sname;
struct servent *sp;
int sock, red=1, total=0;
/* resolve hostname */
hp = gethostbyname(host);
if (!hp) return(-1);
/* resolve portname */
sp = getservbyname("finger", "tcp");
/* build socket name for connect() */
memset(&sname, 0, sizeof(sname));
sname.sin_family = AF_INET;
memcpy(&(sname.sin_addr), hp->h_addr, hp->h_length);
sname.sin_port = sp->s_port;
/* create socket */
sock = socket(PF_INET, SOCK_STREAM, 0);
/* connect */
if (connect(sock, &sname, sizeof(sname)) < 0) return(-1);
/* send query */
write(sock, query, strlen(query));
write(sock, "\n", 1);
/* receive result */
while(bufsize > 1 && red > 0)
{
/* read more bytes into remaining buffer */
red = read(sock, buf, bufsize);
if (red > 0)
{
buf += red;
bufsize -= red;
total += red;
}
}
buf[0] = '\0';
close(sock);
return(total);
}
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