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/*
* ================================================================
* Please view:
*
* README for program information.
* COPYING for distribution information.
*
* based on ident2 by Michael Bacarella (defile@nyct.net)
*
* ================================================================
*/
#include "efingerd.h"
unsigned short client_timeout = 60;
/* ------------------------------------------------------------------
* killsock:
* violently kills a socket
* ------------------------------------------------------------------
*/
void killsock (int s)
{
shutdown (s, 2);
close (s);
}
/* ------------------------------------------------------------------
* get_request : a fgets for file descriptors
* ------------------------------------------------------------------
*/
int get_request (int d, char buffer[], u_short len)
{
u_short i;
char ch;
memset (buffer, 0, len);
for (i = 0; i < len; i++) {
if (read (d, &ch, 1) != 1)
return -1;
else if (ch == '\n') { /* some buggy clients send only \n */
break;
}
else if (ch == '\r') {
read (d, &ch, 1); /* should read the following \n */
break;
}
else
buffer[i] = ch;
}
buffer[i] = '\0';
return i;
}
/* ------------------------------------------------------------------
* client_reply:
* send a reply back to the client..
* ------------------------------------------------------------------
*/
void client_reply (int sd, char *outcome)
{
write (sd, outcome, strlen (outcome));
}
/* ============================================================================
LOCAL FUNCTIONS
============================================================================ */
/* usage:
* ------------------------------------------------------------------
*/
static void usage (char *progname)
{
fprintf (stderr, "usage: %s [options]\n"
" --help This information.\n"
" --version Print version information and exit.\n"
" -t X Time to keep connection.\n"
" ex: -t 25 maintain connections for up to 25 seconds.\n"
" -n Do not lookup addresses, use IP numbers instead.\n"
" -f Do not display users' full names.\n"
" -u Ignore user-specific .efingerd file\n",
progname);
exit (0);
}
/* ------------------------------------------------------------------
* print_version:
* wouldn't want to disappoint anyone.
* ------------------------------------------------------------------
*/
static void print_version (void)
{
fprintf (stderr, "efingerd %s\n", ID_VERSION );
exit (0);
}
int main (int argc, char *argv[])
{
u_short i;
resolve_addr = 1;
display_full_name = 1;
ignore_user = 0;
for (i = 1; i < argc; i++) {
if (argv[i][0] == '-') {
switch (argv[i][1]) {
case 't':
client_timeout = atoi ( argv[++i]);
break;
case 'f':
display_full_name = 0;
break;
case 'v':
print_version ();
case 'n':
resolve_addr = 0;
break;
case 'u':
ignore_user = 1;
break;
case 'h':
usage (argv[0]);
case '-':
if (strncmp ("version", ( argv[i]+2), 7) == 0)
print_version ();
else if (strcmp ("help", ( argv[i]+2)) == 0)
usage (argv[0]);
break;
}
}
}
openlog ("efingerd", LOG_PID, LOG_DAEMON);
alarm (client_timeout);
signal (SIGALRM, killtic);
inetd_service (0, 1);
killsock (0);
killsock (1);
closelog ();
exit (-1);
}
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