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-rw-r--r--login/programs/connection.c180
1 files changed, 0 insertions, 180 deletions
diff --git a/login/programs/connection.c b/login/programs/connection.c
deleted file mode 100644
index 4e1663189d..0000000000
--- a/login/programs/connection.c
+++ /dev/null
@@ -1,180 +0,0 @@
-/* Copyright (C) 1997 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1997.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-#include <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/socket.h>
-#include <unistd.h>
-
-#include "utmpd-private.h"
-
-
-/* Prototypes for the local functions. */
-static client_connection *alloc_connection (void);
-static void free_connection (client_connection *connection);
-static int set_nonblock_flag (int desc, int value);
-
-
-/* The head of the connection list. */
-static client_connection *connection_list = NULL;
-
-
-/* Accept connection on SOCK, with access permissions given by ACCESS.
- Returns a pointer to a newly allocated client_connection if
- successful, NULL if not. */
-client_connection *
-accept_connection (int sock, int access)
-{
- client_connection *connection;
-
- connection = alloc_connection ();
- if (connection == NULL)
- return NULL;
-
- connection->sock = accept (sock, NULL, NULL);
- connection->access = access;
- if (connection->sock < 0)
- {
- free_connection (connection);
- return NULL;
- }
-
- if (set_nonblock_flag (connection->sock, 1) < 0)
- {
- close_connection (connection);
- return NULL;
- }
-
- return connection;
-}
-
-
-/* Close CONNECTION. */
-void
-close_connection (client_connection *connection)
-{
- close (connection->sock);
- free_connection (connection);
-}
-
-
-/* Return the connection for SOCK. */
-client_connection *
-find_connection (int sock)
-{
- client_connection *connection;
-
- for (connection = connection_list; connection;
- connection = connection->next)
- {
- if (connection->sock == sock)
- return connection;
- }
-
- return NULL;
-}
-
-
-static client_connection *
-alloc_connection (void)
-{
- client_connection *connection;
- size_t read_bufsize = 1024;
- size_t write_bufsize = 1024;
-
- connection = (client_connection *)malloc (sizeof (client_connection));
- if (connection == NULL)
- return NULL;
-
- memset (connection, 0, sizeof (client_connection));
-
- /* Allocate read buffer. */
- connection->read_base = malloc (read_bufsize);
- connection->read_ptr = connection->read_base;
- connection->read_end = connection->read_base + read_bufsize;
- if (connection->read_base == NULL)
- {
- free (connection);
- return NULL;
- }
-
- /* Allocate write buffer. */
- connection->write_base = malloc (write_bufsize);
- connection->write_ptr = connection->write_base;
- connection->write_end = connection->write_base + write_bufsize;
- if (connection->write_base == NULL)
- {
- free (connection->read_base);
- free (connection);
- return NULL;
- }
-
- /* Link connection. */
- connection->next = connection_list;
- connection_list = connection;
- if (connection->next)
- connection->next->prev = connection;
-
- return connection;
-}
-
-
-static void
-free_connection (client_connection *connection)
-{
- /* Unlink connection. */
- if (connection->next)
- connection->next->prev = connection->prev;
- if (connection->prev)
- connection->prev->next = connection->next;
-
- /* Take care of the head of the list. */
- if (connection == connection_list)
- connection_list = connection->next;
-
- /* Free buffers. */
- if (connection->read_base)
- free (connection->read_base);
- if (connection->write_base)
- free (connection->write_base);
-
- free (connection);
-}
-
-
-/* Set the `O_NONBLOCK' flag of DESC if VALUE is nonzero,
- or clear the flag if VALUE is 0.
- Return 0 on success, or -1 on error with `errno' set. */
-static int
-set_nonblock_flag (int desc, int value)
-{
- int oldflags = fcntl (desc, F_GETFL, 0);
- /* If reading the flags failed, return error indication now. */
- if (oldflags == -1)
- return -1;
- /* Set just the flag we want to set. */
- if (value != 0)
- oldflags |= O_NONBLOCK;
- else
- oldflags &= ~O_NONBLOCK;
- /* Store modified flag word in the descriptor. */
- return fcntl (desc, F_SETFL, oldflags);
-}