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Add an "internal" driver for the "ident" protocol (tcp/113).

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It will return "ERROR:HIDDEN-USER" for all requests.

To use it add:
	ident   stream  tcp     nowait  root    internal
to inetd.conf
This commit is contained in:
Poul-Henning Kamp 1998-11-04 19:39:46 +00:00
parent 68d0b83d98
commit 3c97a31c2f
1 changed files with 31 additions and 1 deletions
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32
usr.sbin/inetd/inetd.c
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@ -42,7 +42,7 @@ static const char copyright[] =
static char sccsid[] = "@(#)from: inetd.c 8.4 (Berkeley) 4/13/94";
#endif
static const char rcsid[] =
"$Id: inetd.c,v 1.39 1998/08/17 06:16:59 jb Exp $";
"$Id: inetd.c,v 1.40 1998/08/18 02:10:05 jb Exp $";
#endif /* not lint */
/*
@ -228,6 +228,7 @@ void endconfig __P((void));
struct servtab *enter __P((struct servtab *));
void freeconfig __P((struct servtab *));
struct servtab *getconfigent __P((void));
void ident_stream __P((int, struct servtab *));
void machtime_dg __P((int, struct servtab *));
void machtime_stream __P((int, struct servtab *));
char *newstr __P((char *));
@ -276,6 +277,8 @@ struct biltin {
{ "tcpmux", SOCK_STREAM, 1, 0, (void (*)())tcpmux },
{ "ident", SOCK_STREAM, 1, 0, ident_stream },
{ NULL }
};
@ -1450,6 +1453,33 @@ inetd_setproctitle(a, s)
*/
#define BUFSIZE 8192
#define IDENT_RESPONSE ":ERROR:HIDDEN-USER\r\n"
/* ARGSUSED */
void
ident_stream(s, sep) /* Ident service */
int s;
struct servtab *sep;
{
char buffer[BUFSIZE];
int i, j;
inetd_setproctitle(sep->se_service, s);
j = 0;
while ((i = read(s, buffer + j, sizeof(buffer) - j)) > 0) {
j += i;
buffer[j] = '\0';
if (strchr(buffer, '\n'))
break;
if (strchr(buffer, '\r'))
break;
}
while (j > 0 && (buffer[j-1] == '\n' || buffer[j-1] == '\r'))
j--;
write(s, buffer, j);
write(s, IDENT_RESPONSE, strlen(IDENT_RESPONSE));
exit(0);
}
/* ARGSUSED */
void
echo_stream(s, sep) /* Echo service -- echo data back */