2 * Copyright (c) 1995 - 2001 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 #endif /* HAVE_CONFIG_H */
58 #ifdef HAVE_SYS_TYPES_H
59 #include <sys/types.h>
61 #ifdef TIME_WITH_SYS_TIME
64 #elif defined(HAVE_SYS_TIME_H)
69 #ifdef HAVE_SYS_RESOURCE_H
70 #include <sys/resource.h>
72 #ifdef HAVE_SYS_SELECT_H
73 #include <sys/select.h>
75 #ifdef HAVE_SYS_WAIT_H
78 #ifdef HAVE_SYS_STAT_H
81 #ifdef HAVE_SYS_SOCKET_H
82 #include <sys/socket.h>
84 #ifdef HAVE_NETINET_IN_H
85 #include <netinet/in.h>
87 #ifdef HAVE_NETINET_TCP_H
88 #include <netinet/tcp.h>
90 #ifdef HAVE_ARPA_INET_H
91 #include <arpa/inet.h>
100 #include <X11/Xlib.h>
101 #include <X11/Xauth.h>
103 #ifdef HAVE_SYS_STREAM_H
104 #include <sys/stream.h>
106 #ifdef HAVE_SYS_STROPTS_H
107 #include <sys/stropts.h>
110 /* defined by aix's sys/stream.h and again by arpa/nameser.h */
114 /* as far as we know, this is only used with later versions of Slowlaris */
115 #if SunOS >= 50 && defined(HAVE_SYS_STROPTS_H) && defined(HAVE_FATTACH) && defined(I_PUSH)
116 #define MAY_HAVE_X11_PIPES
121 /* This doesn't belong here. */
122 struct tm
*localtime(const time_t *);
123 struct hostent
*gethostbyname(const char *);
144 UNIX_SOCKET
= LISTENP
| 2,
149 extern char x_socket
[];
150 extern uint32_t display_num
;
151 extern char display
[];
152 extern int display_size
;
153 extern char xauthfile
[];
154 extern int xauthfile_size
;
155 extern u_char cookie
[];
156 extern size_t cookie_len
;
158 int get_xsockets (int *number
, struct x_socket
**sockets
, int tcpp
);
159 int chown_xsockets (int n
, struct x_socket
*sockets
, uid_t uid
, gid_t gid
);
161 int connect_local_xsocket (unsigned dnr
);
162 int create_and_write_cookie (char *file
,
166 int verify_and_remove_cookies (int fd
, int sock
, int cookiesp
);
167 int replace_cookie(int xserver
, int fd
, char *filename
, int cookiesp
);
169 int suspicious_address (int sock
, struct sockaddr
*addr
);
173 #define KX_OLD_VERSION "KXSERV.1"
174 #define KX_VERSION "KXSERV.2"
176 #define COOKIE_TYPE "MIT-MAGIC-COOKIE-1"
178 enum { INIT
= 0, ACK
= 1, NEW_CONN
= 2, ERROR
= 3 };
180 enum kx_flags
{ PASSIVE
= 1, KEEP_ALIVE
= 2 };
182 typedef enum kx_flags kx_flags
;
185 int (*authenticate
)(struct kx_context
*kc
, int s
);
186 int (*userok
)(struct kx_context
*kc
, char *user
);
187 ssize_t (*read
)(struct kx_context
*kc
,
188 int fd
, void *buf
, size_t len
);
189 ssize_t (*write
)(struct kx_context
*kc
,
190 int fd
, const void *buf
, size_t len
);
191 int (*copy_encrypted
)(struct kx_context
*kc
,
193 void (*destroy
)(struct kx_context
*kc
);
200 struct sockaddr_storage __ss_this
;
201 struct sockaddr_storage __ss_that
;
202 struct sockaddr
*thisaddr
;
203 struct sockaddr
*thataddr
;
204 socklen_t thisaddr_len
, thataddr_len
;
208 typedef struct kx_context kx_context
;
211 context_set (kx_context
*kc
, const char *host
, const char *user
, int port
,
212 int debug_flag
, int keepalive_flag
, int tcp_flag
);
215 context_destroy (kx_context
*kc
);
218 context_authenticate (kx_context
*kc
, int s
);
221 context_userok (kx_context
*kc
, char *user
);
224 kx_read (kx_context
*kc
, int fd
, void *buf
, size_t len
);
227 kx_write (kx_context
*kc
, int fd
, const void *buf
, size_t len
);
230 copy_encrypted (kx_context
*kc
, int fd1
, int fd2
);
235 krb4_make_context (kx_context
*c
);
238 recv_v4_auth (kx_context
*kc
, int sock
, u_char
*buf
);
245 krb5_make_context (kx_context
*c
);
248 recv_v5_auth (kx_context
*kc
, int sock
, u_char
*buf
);
253 fatal (kx_context
*kc
, int fd
, char *format
, ...)
255 __attribute__ ((format (printf
, 3, 4)))
260 kx_get_int(void *f
, uint32_t *to
, int size
, int lsb
);
263 kx_put_int(uint32_t from
, void *to
, size_t rem
, int size
);