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/*
* $Id: server.c,v 1.1 2002-10-14 10:31:36 cvs Exp $
*/
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include "gssTunnel.h"
#ifndef MAXHOSTNAMELEN
#define MAXHOSTNAMELEN 64
#endif
int
create_socket(int *dataFd, int *cbPort)
{
struct sockaddr_in me, him;
#if defined(sun) || defined(sgi) || defined (__alpha)
size_t addrSize;
#else
socklen_t addrSize;
#endif
int bindResult;
int newFd;
struct hostent *he;
char *hostName;
hostName = (char *) malloc(MAXHOSTNAMELEN + 1);
if (hostName == NULL) {
*dataFd = -1;
return -1;
}
hostName[MAXHOSTNAMELEN] = '\0';
if (gethostname(hostName, MAXHOSTNAMELEN) < 0) {
printf("Failed to get local host name.\n");
*dataFd = -1;
return -1;
}
/* trying to get full fully-qualified domain name. */
he = (struct hostent *) gethostbyname((const char *) hostName);
if (he != NULL) {
/* if we successed to get it, let use it */
free(hostName);
hostName = (char *) strdup(he->h_name);
} else {
printf("Unable to get FQDN for host %s.\n", hostName);
}
printf("Setting hostname to %s.\n", hostName);
*dataFd = socket(AF_INET, SOCK_STREAM, 0);
if (*dataFd < 0) {
return *dataFd;
}
memset((char *) &me, 0, sizeof(me));
me.sin_family = AF_INET;
me.sin_addr.s_addr = htonl(INADDR_ANY);
me.sin_port = htons(*cbPort);
addrSize = sizeof(me);
bindResult = bind(*dataFd, (struct sockaddr *) & me, addrSize);
if (bindResult < 0) {
close(*dataFd);
*dataFd = -1;
return -1;
}
if (*cbPort == 0) {
/* get our TCP port number */
#if defined(sun) || defined(sgi) || defined(__alpha)
getsockname(*dataFd, (struct sockaddr *) & me, (int *) &addrSize);
#else
getsockname(*dataFd, (struct sockaddr *) & me, (socklen_t *) & addrSize);
#endif
*cbPort = ntohs(me.sin_port);
}
listen(*dataFd, 512);
addrSize = sizeof(him);
newFd = accept(*dataFd, (struct sockaddr *) & him, (int *) &addrSize);
close(*dataFd);
*dataFd = newFd;
return *cbPort;
}
int
main(int argc, char *argv[])
{
int rc;
int port;
int sock;
if (argc != 2) {
printf("Usage %s <port>\n", argv[0]);
exit(1);
}
port = atoi(argv[1]);
create_socket(&sock, &port);
gss_check(sock );
close(sock);
return 0;
}
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