2 Unix SMB/CIFS implementation.
3 Samba utility functions
4 Copyright (C) Andrew Tridgell 1992-1998
5 Copyright (C) Tim Potter 2000-2001
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 /* the last IP received from */
25 struct in_addr lastip
;
27 /* the last port received from */
30 int smb_read_error
= 0;
32 static char *get_socket_addr(int fd
)
35 struct sockaddr_in
*sockin
= (struct sockaddr_in
*) (&sa
);
36 int length
= sizeof(sa
);
37 static fstring addr_buf
;
39 fstrcpy(addr_buf
,"0.0.0.0");
45 if (getsockname(fd
, &sa
, &length
) < 0) {
46 DEBUG(0,("getpeername failed. Error was %s\n", strerror(errno
) ));
50 fstrcpy(addr_buf
,(char *)inet_ntoa(sockin
->sin_addr
));
55 /****************************************************************************
56 Determine if a file descriptor is in fact a socket.
57 ****************************************************************************/
59 BOOL
is_a_socket(int fd
)
63 return(getsockopt(fd
, SOL_SOCKET
, SO_TYPE
, (char *)&v
, &l
) == 0);
66 enum SOCK_OPT_TYPES
{OPT_BOOL
,OPT_INT
,OPT_ON
};
68 typedef struct smb_socket_option
{
76 static const smb_socket_option socket_options
[] = {
77 {"SO_KEEPALIVE", SOL_SOCKET
, SO_KEEPALIVE
, 0, OPT_BOOL
},
78 {"SO_REUSEADDR", SOL_SOCKET
, SO_REUSEADDR
, 0, OPT_BOOL
},
79 {"SO_BROADCAST", SOL_SOCKET
, SO_BROADCAST
, 0, OPT_BOOL
},
81 {"TCP_NODELAY", IPPROTO_TCP
, TCP_NODELAY
, 0, OPT_BOOL
},
84 {"IPTOS_LOWDELAY", IPPROTO_IP
, IP_TOS
, IPTOS_LOWDELAY
, OPT_ON
},
86 #ifdef IPTOS_THROUGHPUT
87 {"IPTOS_THROUGHPUT", IPPROTO_IP
, IP_TOS
, IPTOS_THROUGHPUT
, OPT_ON
},
90 {"SO_REUSEPORT", SOL_SOCKET
, SO_REUSEPORT
, 0, OPT_BOOL
},
93 {"SO_SNDBUF", SOL_SOCKET
, SO_SNDBUF
, 0, OPT_INT
},
96 {"SO_RCVBUF", SOL_SOCKET
, SO_RCVBUF
, 0, OPT_INT
},
99 {"SO_SNDLOWAT", SOL_SOCKET
, SO_SNDLOWAT
, 0, OPT_INT
},
102 {"SO_RCVLOWAT", SOL_SOCKET
, SO_RCVLOWAT
, 0, OPT_INT
},
105 {"SO_SNDTIMEO", SOL_SOCKET
, SO_SNDTIMEO
, 0, OPT_INT
},
108 {"SO_RCVTIMEO", SOL_SOCKET
, SO_RCVTIMEO
, 0, OPT_INT
},
112 /****************************************************************************
113 Print socket options.
114 ****************************************************************************/
116 static void print_socket_options(int s
)
119 const smb_socket_option
*p
= &socket_options
[0];
121 /* wrapped in if statement to prevent streams leak in SCO Openserver 5.0 */
122 /* reported on samba-technical --jerry */
123 if ( DEBUGLEVEL
>= 5 ) {
124 for (; p
->name
!= NULL
; p
++) {
125 if (getsockopt(s
, p
->level
, p
->option
, (void *)&value
, &vlen
) == -1) {
126 DEBUG(5,("Could not test socket option %s.\n", p
->name
));
128 DEBUG(5,("socket option %s = %d\n",p
->name
,value
));
134 /****************************************************************************
135 Set user socket options.
136 ****************************************************************************/
138 void set_socket_options(int fd
, const char *options
)
142 while (next_token(&options
,tok
," \t,", sizeof(tok
))) {
146 BOOL got_value
= False
;
148 if ((p
= strchr_m(tok
,'='))) {
154 for (i
=0;socket_options
[i
].name
;i
++)
155 if (strequal(socket_options
[i
].name
,tok
))
158 if (!socket_options
[i
].name
) {
159 DEBUG(0,("Unknown socket option %s\n",tok
));
163 switch (socket_options
[i
].opttype
) {
166 ret
= setsockopt(fd
,socket_options
[i
].level
,
167 socket_options
[i
].option
,(char *)&value
,sizeof(int));
172 DEBUG(0,("syntax error - %s does not take a value\n",tok
));
175 int on
= socket_options
[i
].value
;
176 ret
= setsockopt(fd
,socket_options
[i
].level
,
177 socket_options
[i
].option
,(char *)&on
,sizeof(int));
183 DEBUG(0,("Failed to set socket option %s (Error %s)\n",tok
, strerror(errno
) ));
186 print_socket_options(fd
);
189 /****************************************************************************
191 ****************************************************************************/
193 ssize_t
read_udp_socket(int fd
,char *buf
,size_t len
)
196 struct sockaddr_in sock
;
197 socklen_t socklen
= sizeof(sock
);
199 memset((char *)&sock
,'\0',socklen
);
200 memset((char *)&lastip
,'\0',sizeof(lastip
));
201 ret
= (ssize_t
)sys_recvfrom(fd
,buf
,len
,0,(struct sockaddr
*)&sock
,&socklen
);
203 DEBUG(2,("read socket failed. ERRNO=%s\n",strerror(errno
)));
207 lastip
= sock
.sin_addr
;
208 lastport
= ntohs(sock
.sin_port
);
210 DEBUG(10,("read_udp_socket: lastip %s lastport %d read: %lu\n",
211 inet_ntoa(lastip
), lastport
, (unsigned long)ret
));
216 /****************************************************************************
217 Read data from a socket with a timout in msec.
218 mincount = if timeout, minimum to read before returning
219 maxcount = number to be read.
220 time_out = timeout in milliseconds
221 ****************************************************************************/
223 ssize_t
read_socket_with_timeout(int fd
,char *buf
,size_t mincnt
,size_t maxcnt
,unsigned int time_out
)
229 struct timeval timeout
;
231 /* just checking .... */
239 if (mincnt
== 0) mincnt
= maxcnt
;
241 while (nread
< mincnt
) {
242 readret
= sys_read(fd
, buf
+ nread
, maxcnt
- nread
);
245 DEBUG(5,("read_socket_with_timeout: blocking read. EOF from client.\n"));
246 smb_read_error
= READ_EOF
;
251 DEBUG(0,("read_socket_with_timeout: read error = %s.\n", strerror(errno
) ));
252 smb_read_error
= READ_ERROR
;
257 return((ssize_t
)nread
);
260 /* Most difficult - timeout read */
261 /* If this is ever called on a disk file and
262 mincnt is greater then the filesize then
263 system performance will suffer severely as
264 select always returns true on disk files */
266 /* Set initial timeout */
267 timeout
.tv_sec
= (time_t)(time_out
/ 1000);
268 timeout
.tv_usec
= (long)(1000 * (time_out
% 1000));
270 for (nread
=0; nread
< mincnt
; ) {
274 selrtn
= sys_select_intr(fd
+1,&fds
,NULL
,NULL
,&timeout
);
278 /* something is wrong. Maybe the socket is dead? */
279 DEBUG(0,("read_socket_with_timeout: timeout read. select error = %s.\n", strerror(errno
) ));
280 smb_read_error
= READ_ERROR
;
284 /* Did we timeout ? */
286 DEBUG(10,("read_socket_with_timeout: timeout read. select timed out.\n"));
287 smb_read_error
= READ_TIMEOUT
;
291 readret
= sys_read(fd
, buf
+nread
, maxcnt
-nread
);
294 /* we got EOF on the file descriptor */
295 DEBUG(5,("read_socket_with_timeout: timeout read. EOF from client.\n"));
296 smb_read_error
= READ_EOF
;
301 /* the descriptor is probably dead */
302 DEBUG(0,("read_socket_with_timeout: timeout read. read error = %s.\n", strerror(errno
) ));
303 smb_read_error
= READ_ERROR
;
310 /* Return the number we got */
311 return (ssize_t
)nread
;
314 /****************************************************************************
315 Read data from the client, reading exactly N bytes.
316 ****************************************************************************/
318 ssize_t
read_data(int fd
,char *buffer
,size_t N
)
326 ret
= sys_read(fd
,buffer
+ total
,N
- total
);
329 DEBUG(10,("read_data: read of %d returned 0. Error = %s\n", (int)(N
- total
), strerror(errno
) ));
330 smb_read_error
= READ_EOF
;
335 DEBUG(0,("read_data: read failure for %d. Error = %s\n", (int)(N
- total
), strerror(errno
) ));
336 smb_read_error
= READ_ERROR
;
341 return (ssize_t
)total
;
344 /****************************************************************************
345 Read data from a socket, reading exactly N bytes.
346 ****************************************************************************/
348 static ssize_t
read_socket_data(int fd
,char *buffer
,size_t N
)
356 ret
= sys_read(fd
,buffer
+ total
,N
- total
);
359 DEBUG(10,("read_socket_data: recv of %d returned 0. Error = %s\n", (int)(N
- total
), strerror(errno
) ));
360 smb_read_error
= READ_EOF
;
365 DEBUG(0,("read_socket_data: recv failure for %d. Error = %s\n", (int)(N
- total
), strerror(errno
) ));
366 smb_read_error
= READ_ERROR
;
371 return (ssize_t
)total
;
374 /****************************************************************************
376 ****************************************************************************/
378 ssize_t
write_data(int fd
,char *buffer
,size_t N
)
384 ret
= sys_write(fd
,buffer
+ total
,N
- total
);
387 DEBUG(0,("write_data: write failure. Error = %s\n", strerror(errno
) ));
395 return (ssize_t
)total
;
398 /****************************************************************************
399 Write data to a socket - use send rather than write.
400 ****************************************************************************/
402 static ssize_t
write_socket_data(int fd
,char *buffer
,size_t N
)
408 ret
= sys_send(fd
,buffer
+ total
,N
- total
,0);
411 DEBUG(0,("write_socket_data: write failure. Error = %s\n", strerror(errno
) ));
419 return (ssize_t
)total
;
422 /****************************************************************************
424 ****************************************************************************/
426 ssize_t
write_socket(int fd
,char *buf
,size_t len
)
430 DEBUG(6,("write_socket(%d,%d)\n",fd
,(int)len
));
431 ret
= write_socket_data(fd
,buf
,len
);
433 DEBUG(6,("write_socket(%d,%d) wrote %d\n",fd
,(int)len
,(int)ret
));
435 DEBUG(0,("write_socket: Error writing %d bytes to socket %d: ERRNO = %s\n",
436 (int)len
, fd
, strerror(errno
) ));
441 /****************************************************************************
442 Send a keepalive packet (rfc1002).
443 ****************************************************************************/
445 BOOL
send_keepalive(int client
)
447 unsigned char buf
[4];
449 buf
[0] = SMBkeepalive
;
450 buf
[1] = buf
[2] = buf
[3] = 0;
452 return(write_socket_data(client
,(char *)buf
,4) == 4);
456 /****************************************************************************
457 Read 4 bytes of a smb packet and return the smb length of the packet.
458 Store the result in the buffer.
459 This version of the function will return a length of zero on receiving
461 Timeout is in milliseconds.
462 ****************************************************************************/
464 static ssize_t
read_smb_length_return_keepalive(int fd
,char *inbuf
,unsigned int timeout
)
472 ok
= (read_socket_with_timeout(fd
,inbuf
,4,4,timeout
) == 4);
474 ok
= (read_socket_data(fd
,inbuf
,4) == 4);
479 len
= smb_len(inbuf
);
480 msg_type
= CVAL(inbuf
,0);
482 if (msg_type
== SMBkeepalive
)
483 DEBUG(5,("Got keepalive packet\n"));
486 DEBUG(10,("got smb length of %lu\n",(unsigned long)len
));
491 /****************************************************************************
492 Read 4 bytes of a smb packet and return the smb length of the packet.
493 Store the result in the buffer. This version of the function will
494 never return a session keepalive (length of zero).
495 Timeout is in milliseconds.
496 ****************************************************************************/
498 ssize_t
read_smb_length(int fd
,char *inbuf
,unsigned int timeout
)
503 len
= read_smb_length_return_keepalive(fd
, inbuf
, timeout
);
508 /* Ignore session keepalives. */
509 if(CVAL(inbuf
,0) != SMBkeepalive
)
513 DEBUG(10,("read_smb_length: got smb length of %lu\n",
514 (unsigned long)len
));
519 /****************************************************************************
520 Read an smb from a fd. Note that the buffer *MUST* be of size
521 BUFFER_SIZE+SAFETY_MARGIN.
522 The timeout is in milliseconds.
523 This function will return on receipt of a session keepalive packet.
524 Doesn't check the MAC on signed packets.
525 ****************************************************************************/
527 BOOL
receive_smb_raw(int fd
,char *buffer
, unsigned int timeout
)
533 memset(buffer
,'\0',smb_size
+ 100);
535 len
= read_smb_length_return_keepalive(fd
,buffer
,timeout
);
537 DEBUG(10,("receive_smb_raw: length < 0!\n"));
540 * Correct fix. smb_read_error may have already been
541 * set. Only set it here if not already set. Global
542 * variables still suck :-). JRA.
545 if (smb_read_error
== 0)
546 smb_read_error
= READ_ERROR
;
551 * A WRITEX with CAP_LARGE_WRITEX can be 64k worth of data plus 65 bytes
552 * of header. Don't print the error if this fits.... JRA.
555 if (len
> (BUFFER_SIZE
+ LARGE_WRITEX_HDR_SIZE
)) {
556 DEBUG(0,("Invalid packet length! (%lu bytes).\n",(unsigned long)len
));
557 if (len
> BUFFER_SIZE
+ (SAFETY_MARGIN
/2)) {
560 * Correct fix. smb_read_error may have already been
561 * set. Only set it here if not already set. Global
562 * variables still suck :-). JRA.
565 if (smb_read_error
== 0)
566 smb_read_error
= READ_ERROR
;
572 ret
= read_socket_data(fd
,buffer
+4,len
);
574 if (smb_read_error
== 0)
575 smb_read_error
= READ_ERROR
;
579 /* not all of samba3 properly checks for packet-termination of strings. This
580 ensures that we don't run off into empty space. */
581 SSVAL(buffer
+4,len
, 0);
587 /****************************************************************************
588 Wrapper for receive_smb_raw().
589 Checks the MAC on signed packets.
590 ****************************************************************************/
592 BOOL
receive_smb(int fd
,char *buffer
, unsigned int timeout
)
594 if (!receive_smb_raw(fd
, buffer
, timeout
)) {
598 /* Check the incoming SMB signature. */
599 if (!srv_check_sign_mac(buffer
, True
)) {
600 DEBUG(0, ("receive_smb: SMB Signature verification failed on incoming packet!\n"));
601 if (smb_read_error
== 0)
602 smb_read_error
= READ_BAD_SIG
;
609 /****************************************************************************
611 ****************************************************************************/
613 BOOL
send_smb(int fd
,char *buffer
)
619 /* Sign the outgoing packet if required. */
620 srv_calculate_sign_mac(buffer
);
622 len
= smb_len(buffer
) + 4;
624 while (nwritten
< len
) {
625 ret
= write_socket(fd
,buffer
+nwritten
,len
- nwritten
);
627 DEBUG(0,("Error writing %d bytes to client. %d. (%s)\n",
628 (int)len
,(int)ret
, strerror(errno
) ));
637 /****************************************************************************
638 Open a socket of the specified type, port, and address for incoming data.
639 ****************************************************************************/
641 int open_socket_in( int type
, int port
, int dlevel
, uint32 socket_addr
, BOOL rebind
)
643 struct sockaddr_in sock
;
646 memset( (char *)&sock
, '\0', sizeof(sock
) );
648 #ifdef HAVE_SOCK_SIN_LEN
649 sock
.sin_len
= sizeof(sock
);
651 sock
.sin_port
= htons( port
);
652 sock
.sin_family
= AF_INET
;
653 sock
.sin_addr
.s_addr
= socket_addr
;
655 res
= socket( AF_INET
, type
, 0 );
658 dbgtext( "open_socket_in(): socket() call failed: " );
659 dbgtext( "%s\n", strerror( errno
) );
664 /* This block sets/clears the SO_REUSEADDR and possibly SO_REUSEPORT. */
666 int val
= rebind
? 1 : 0;
667 if( setsockopt(res
,SOL_SOCKET
,SO_REUSEADDR
,(char *)&val
,sizeof(val
)) == -1 ) {
668 if( DEBUGLVL( dlevel
) ) {
669 dbgtext( "open_socket_in(): setsockopt: " );
670 dbgtext( "SO_REUSEADDR = %s ", val
?"True":"False" );
671 dbgtext( "on port %d failed ", port
);
672 dbgtext( "with error = %s\n", strerror(errno
) );
676 if( setsockopt(res
,SOL_SOCKET
,SO_REUSEPORT
,(char *)&val
,sizeof(val
)) == -1 ) {
677 if( DEBUGLVL( dlevel
) ) {
678 dbgtext( "open_socket_in(): setsockopt: ");
679 dbgtext( "SO_REUSEPORT = %s ", val
?"True":"False" );
680 dbgtext( "on port %d failed ", port
);
681 dbgtext( "with error = %s\n", strerror(errno
) );
684 #endif /* SO_REUSEPORT */
687 /* now we've got a socket - we need to bind it */
688 if( bind( res
, (struct sockaddr
*)&sock
, sizeof(sock
) ) == -1 ) {
689 if( DEBUGLVL(dlevel
) && (port
== SMB_PORT1
|| port
== SMB_PORT2
|| port
== NMB_PORT
) ) {
690 dbgtext( "bind failed on port %d ", port
);
691 dbgtext( "socket_addr = %s.\n", inet_ntoa( sock
.sin_addr
) );
692 dbgtext( "Error = %s\n", strerror(errno
) );
698 DEBUG( 10, ( "bind succeeded on port %d\n", port
) );
703 /****************************************************************************
704 Create an outgoing socket. timeout is in milliseconds.
705 **************************************************************************/
707 int open_socket_out(int type
, struct in_addr
*addr
, int port
,int timeout
)
709 struct sockaddr_in sock_out
;
711 int connect_loop
= 10;
714 /* create a socket to write to */
715 res
= socket(PF_INET
, type
, 0);
717 DEBUG(0,("socket error (%s)\n", strerror(errno
)));
721 if (type
!= SOCK_STREAM
)
724 memset((char *)&sock_out
,'\0',sizeof(sock_out
));
725 putip((char *)&sock_out
.sin_addr
,(char *)addr
);
727 sock_out
.sin_port
= htons( port
);
728 sock_out
.sin_family
= PF_INET
;
730 /* set it non-blocking */
731 set_blocking(res
,False
);
733 DEBUG(3,("Connecting to %s at port %d\n",inet_ntoa(*addr
),port
));
735 /* and connect it to the destination */
738 ret
= connect(res
,(struct sockaddr
*)&sock_out
,sizeof(sock_out
));
740 /* Some systems return EAGAIN when they mean EINPROGRESS */
741 if (ret
< 0 && (errno
== EINPROGRESS
|| errno
== EALREADY
||
742 errno
== EAGAIN
) && (connect_loop
< timeout
) ) {
743 smb_msleep(connect_loop
);
744 connect_loop
+= increment
;
745 if (increment
< 250) {
746 /* After 8 rounds we end up at a max of 255 msec */
752 if (ret
< 0 && (errno
== EINPROGRESS
|| errno
== EALREADY
||
754 DEBUG(1,("timeout connecting to %s:%d\n",inet_ntoa(*addr
),port
));
761 if (ret
< 0 && errno
== EISCONN
) {
768 DEBUG(2,("error connecting to %s:%d (%s)\n",
769 inet_ntoa(*addr
),port
,strerror(errno
)));
774 /* set it blocking again */
775 set_blocking(res
,True
);
780 /****************************************************************************
781 Open a connected UDP socket to host on port
782 **************************************************************************/
784 int open_udp_socket(const char *host
, int port
)
786 int type
= SOCK_DGRAM
;
787 struct sockaddr_in sock_out
;
789 struct in_addr
*addr
;
791 addr
= interpret_addr2(host
);
793 res
= socket(PF_INET
, type
, 0);
798 memset((char *)&sock_out
,'\0',sizeof(sock_out
));
799 putip((char *)&sock_out
.sin_addr
,(char *)addr
);
800 sock_out
.sin_port
= htons(port
);
801 sock_out
.sin_family
= PF_INET
;
803 if (connect(res
,(struct sockaddr
*)&sock_out
,sizeof(sock_out
))) {
812 /* the following 3 client_*() functions are nasty ways of allowing
813 some generic functions to get info that really should be hidden in
814 particular modules */
815 static int client_fd
= -1;
817 void client_setfd(int fd
)
822 char *client_name(void)
824 return get_peer_name(client_fd
,False
);
827 char *client_addr(void)
829 return get_peer_addr(client_fd
);
832 char *client_socket_addr(void)
834 return get_socket_addr(client_fd
);
837 struct in_addr
*client_inaddr(struct sockaddr
*sa
)
839 struct sockaddr_in
*sockin
= (struct sockaddr_in
*) (sa
);
840 int length
= sizeof(*sa
);
842 if (getpeername(client_fd
, sa
, &length
) < 0) {
843 DEBUG(0,("getpeername failed. Error was %s\n", strerror(errno
) ));
847 return &sockin
->sin_addr
;
850 /*******************************************************************
851 Matchname - determine if host name matches IP address. Used to
852 confirm a hostname lookup to prevent spoof attacks.
853 ******************************************************************/
855 static BOOL
matchname(char *remotehost
,struct in_addr addr
)
860 if ((hp
= sys_gethostbyname(remotehost
)) == 0) {
861 DEBUG(0,("sys_gethostbyname(%s): lookup failure.\n", remotehost
));
866 * Make sure that gethostbyname() returns the "correct" host name.
867 * Unfortunately, gethostbyname("localhost") sometimes yields
868 * "localhost.domain". Since the latter host name comes from the
869 * local DNS, we just have to trust it (all bets are off if the local
870 * DNS is perverted). We always check the address list, though.
873 if (!strequal(remotehost
, hp
->h_name
)
874 && !strequal(remotehost
, "localhost")) {
875 DEBUG(0,("host name/name mismatch: %s != %s\n",
876 remotehost
, hp
->h_name
));
880 /* Look up the host address in the address list we just got. */
881 for (i
= 0; hp
->h_addr_list
[i
]; i
++) {
882 if (memcmp(hp
->h_addr_list
[i
], (char *) & addr
, sizeof(addr
)) == 0)
887 * The host name does not map to the original host address. Perhaps
888 * someone has compromised a name server. More likely someone botched
889 * it, but that could be dangerous, too.
892 DEBUG(0,("host name/address mismatch: %s != %s\n",
893 inet_ntoa(addr
), hp
->h_name
));
897 /*******************************************************************
898 Return the DNS name of the remote end of a socket.
899 ******************************************************************/
901 char *get_peer_name(int fd
, BOOL force_lookup
)
903 static pstring name_buf
;
905 static fstring addr_buf
;
910 /* reverse lookups can be *very* expensive, and in many
911 situations won't work because many networks don't link dhcp
912 with dns. To avoid the delay we avoid the lookup if
914 if (!lp_hostname_lookups() && (force_lookup
== False
)) {
915 return get_peer_addr(fd
);
918 p
= get_peer_addr(fd
);
920 /* it might be the same as the last one - save some DNS work */
921 if (strcmp(p
, addr_buf
) == 0)
924 pstrcpy(name_buf
,"UNKNOWN");
928 fstrcpy(addr_buf
, p
);
930 addr
= *interpret_addr2(p
);
932 /* Look up the remote host name. */
933 if ((hp
= gethostbyaddr((char *)&addr
.s_addr
, sizeof(addr
.s_addr
), AF_INET
)) == 0) {
934 DEBUG(1,("Gethostbyaddr failed for %s\n",p
));
935 pstrcpy(name_buf
, p
);
937 pstrcpy(name_buf
,(char *)hp
->h_name
);
938 if (!matchname(name_buf
, addr
)) {
939 DEBUG(0,("Matchname failed on %s %s\n",name_buf
,p
));
940 pstrcpy(name_buf
,"UNKNOWN");
944 /* can't pass the same source and dest strings in when you
945 use --enable-developer or the clobber_region() call will
948 pstrcpy( tmp_name
, name_buf
);
949 alpha_strcpy(name_buf
, tmp_name
, "_-.", sizeof(name_buf
));
950 if (strstr(name_buf
,"..")) {
951 pstrcpy(name_buf
, "UNKNOWN");
957 /*******************************************************************
958 Return the IP addr of the remote end of a socket as a string.
959 ******************************************************************/
961 char *get_peer_addr(int fd
)
964 struct sockaddr_in
*sockin
= (struct sockaddr_in
*) (&sa
);
965 int length
= sizeof(sa
);
966 static fstring addr_buf
;
968 fstrcpy(addr_buf
,"0.0.0.0");
974 if (getpeername(fd
, &sa
, &length
) < 0) {
975 DEBUG(0,("getpeername failed. Error was %s\n", strerror(errno
) ));
979 fstrcpy(addr_buf
,(char *)inet_ntoa(sockin
->sin_addr
));
984 /*******************************************************************
985 Create protected unix domain socket.
987 Some unixes cannot set permissions on a ux-dom-sock, so we
988 have to make sure that the directory contains the protection
990 ******************************************************************/
992 int create_pipe_sock(const char *socket_dir
,
993 const char *socket_name
,
996 #ifdef HAVE_UNIXSOCKET
997 struct sockaddr_un sunaddr
;
1003 old_umask
= umask(0);
1005 /* Create the socket directory or reuse the existing one */
1007 if (lstat(socket_dir
, &st
) == -1) {
1008 if (errno
== ENOENT
) {
1009 /* Create directory */
1010 if (mkdir(socket_dir
, dir_perms
) == -1) {
1011 DEBUG(0, ("error creating socket directory "
1012 "%s: %s\n", socket_dir
,
1017 DEBUG(0, ("lstat failed on socket directory %s: %s\n",
1018 socket_dir
, strerror(errno
)));
1022 /* Check ownership and permission on existing directory */
1023 if (!S_ISDIR(st
.st_mode
)) {
1024 DEBUG(0, ("socket directory %s isn't a directory\n",
1028 if ((st
.st_uid
!= sec_initial_uid()) ||
1029 ((st
.st_mode
& 0777) != dir_perms
)) {
1030 DEBUG(0, ("invalid permissions on socket directory "
1031 "%s\n", socket_dir
));
1036 /* Create the socket file */
1038 sock
= socket(AF_UNIX
, SOCK_STREAM
, 0);
1045 pstr_sprintf(path
, "%s/%s", socket_dir
, socket_name
);
1048 memset(&sunaddr
, 0, sizeof(sunaddr
));
1049 sunaddr
.sun_family
= AF_UNIX
;
1050 safe_strcpy(sunaddr
.sun_path
, path
, sizeof(sunaddr
.sun_path
)-1);
1052 if (bind(sock
, (struct sockaddr
*)&sunaddr
, sizeof(sunaddr
)) == -1) {
1053 DEBUG(0, ("bind failed on pipe socket %s: %s\n", path
,
1058 if (listen(sock
, 5) == -1) {
1059 DEBUG(0, ("listen failed on pipe socket %s: %s\n", path
,
1075 DEBUG(0, ("create_pipe_sock: No Unix sockets on this system\n"));
1077 #endif /* HAVE_UNIXSOCKET */