dropbear: dbutil.c annotate

annotate dbutil.c @ 64:efb5e0b335cf

TCP forwarding works.

author	Matt Johnston <matt@ucc.asn.au>
date	Thu, 12 Aug 2004 13:48:42 +0000
parents	dcc43965928f
children	eee77ac31ccc

rev	line source
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1 /*
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	2 * Dropbear - a SSH2 server
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	3 *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	4 * Copyright (c) 2002,2003 Matt Johnston
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	5 * All rights reserved.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	6 *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	7 * Permission is hereby granted, free of charge, to any person obtaining a copy
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	8 * of this software and associated documentation files (the "Software"), to deal
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	9 * in the Software without restriction, including without limitation the rights
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	11 * copies of the Software, and to permit persons to whom the Software is
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	12 * furnished to do so, subject to the following conditions:
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	13 *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	14 * The above copyright notice and this permission notice shall be included in
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	15 * all copies or substantial portions of the Software.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	16 *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	23 * SOFTWARE.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	24 *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	25 * strlcat() is copyright as follows:
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	26 * Copyright (c) 1998 Todd C. Miller <[email protected]>
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	27 * All rights reserved.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	28 *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	29 * Redistribution and use in source and binary forms, with or without
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	30 * modification, are permitted provided that the following conditions
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	31 * are met:
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	32 * 1. Redistributions of source code must retain the above copyright
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	33 * notice, this list of conditions and the following disclaimer.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	34 * 2. Redistributions in binary form must reproduce the above copyright
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	35 * notice, this list of conditions and the following disclaimer in the
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	36 * documentation and/or other materials provided with the distribution.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	37 * 3. The name of the author may not be used to endorse or promote products
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	38 * derived from this software without specific prior written permission.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	39 *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	40 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	41 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	42 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	43 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	44 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	45 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	46 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	47 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	48 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	49 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	50
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	51 #include "includes.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	52 #include "dbutil.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	53 #include "buffer.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	54 #include "session.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	55 #include "atomicio.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	56
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	57 #define MAX_FMT 100
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	58
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	59 void (_dropbear_exit)(int exitcode, const char format, va_list param) = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	60 void (_dropbear_log)(int priority, const char format, va_list param) = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	61
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	62 int usingsyslog = 0; /* set by runopts, but required externally to sessions */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	63 #ifndef DISABLE_SYSLOG
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	64 void startsyslog() {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	65
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	66 openlog(PROGNAME, LOG_PID, LOG_AUTHPRIV);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	67
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	68 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	69 #endif /* DISABLE_SYSLOG */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	70
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	71 /* the "format" string must be <= 100 characters */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	72 void dropbear_close(const char* format, ...) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	73
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	74 va_list param;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	75
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	76 va_start(param, format);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	77 _dropbear_exit(EXIT_SUCCESS, format, param);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	78 va_end(param);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	79
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	80 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	81
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	82 void dropbear_exit(const char* format, ...) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	83
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	84 va_list param;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	85
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	86 va_start(param, format);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	87 _dropbear_exit(EXIT_FAILURE, format, param);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	88 va_end(param);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	89 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	90
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	91
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	92 /* this is what can be called to write arbitrary log messages */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	93 void dropbear_log(int priority, const char* format, ...) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	94
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	95 va_list param;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	96
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	97 va_start(param, format);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	98 _dropbear_log(priority, format, param);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	99 va_end(param);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	100 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	101
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	102
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	103 #ifdef DEBUG_TRACE
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	104 void dropbear_trace(const char* format, ...) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	105
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	106 va_list param;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	107
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	108 va_start(param, format);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	109 fprintf(stderr, "TRACE: ");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	110 vfprintf(stderr, format, param);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	111 fprintf(stderr, "\n");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	112 va_end(param);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	113 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	114 #endif /* DEBUG_TRACE */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	115
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	116 /* Listen on address:port. Unless address is NULL, in which case listen on
63 dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	117 * everything. If called with address == "", we'll listen on localhost/loopback.
dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	118 * Returns the number of sockets bound on success, or -1 on failure. On
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	119 * failure, if errstring wasn't NULL, it'll be a newly malloced error
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	120 * string.*/
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	121 int dropbear_listen(const char* address, const char* port,
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	122 int socks, unsigned int sockcount, char errstring, int maxfd) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	123
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	124 struct addrinfo hints, res, res0;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	125 int err;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	126 unsigned int nsock;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	127 struct linger linger;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	128 int val;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	129 int sock;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	130
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	131 TRACE(("enter dropbear_listen"));
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	132
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	133 memset(&hints, 0, sizeof(hints));
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	134 hints.ai_family = AF_UNSPEC; /* TODO: let them flag v4 only etc */
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	135 hints.ai_socktype = SOCK_STREAM;
63 dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	136
dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	137 if (address && address[0] == '\0') {
dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	138 TRACE(("dropbear_listen: local loopback"));
dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	139 address = NULL;
dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	140 } else {
dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	141 TRACE(("dropbear_listen: not local loopback"));
dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	142 hints.ai_flags = AI_PASSIVE;
dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	143 }
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	144 err = getaddrinfo(address, port, &hints, &res0);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	145
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	146 if (err) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	147 if (errstring != NULL && *errstring == NULL) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	148 int len;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	149 len = 20 + strlen(gai_strerror(err));
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	150 errstring = (char)m_malloc(len);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	151 snprintf(*errstring, len, "Error resolving: %s", gai_strerror(err));
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	152 }
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	153 TRACE(("leave dropbear_listen: failed resolving"));
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	154 return -1;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	155 }
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	156
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	157
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	158 nsock = 0;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	159 for (res = res0; res != NULL && nsock < sockcount;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	160 res = res->ai_next) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	161
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	162 /* Get a socket */
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	163 socks[nsock] = socket(res->ai_family, res->ai_socktype,
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	164 res->ai_protocol);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	165
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	166 sock = socks[nsock]; /* For clarity */
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	167
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	168 if (sock < 0) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	169 err = errno;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	170 TRACE(("socket() failed"));
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	171 continue;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	172 }
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	173
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	174 /* Various useful socket options */
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	175 val = 1;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	176 /* set to reuse, quick timeout */
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	177 setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void*) &val, sizeof(val));
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	178 linger.l_onoff = 1;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	179 linger.l_linger = 5;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	180 setsockopt(sock, SOL_SOCKET, SO_LINGER, (void*)&linger, sizeof(linger));
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	181
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	182 /* disable nagle */
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	183 setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, (void*)&val, sizeof(val));
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	184
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	185 if (bind(sock, res->ai_addr, res->ai_addrlen) < 0) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	186 err = errno;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	187 close(sock);
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	188 TRACE(("bind(%s) failed", port));
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	189 continue;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	190 }
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	191
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	192 if (listen(sock, 20) < 0) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	193 err = errno;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	194 close(sock);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	195 TRACE(("listen() failed"));
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	196 continue;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	197 }
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	198
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	199 maxfd = MAX(maxfd, sock);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	200
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	201 nsock++;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	202 }
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	203
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	204 if (nsock == 0) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	205 if (errstring != NULL && *errstring == NULL) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	206 int len;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	207 len = 20 + strlen(strerror(err));
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	208 errstring = (char)m_malloc(len);
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	209 snprintf(*errstring, len, "Error listening: %s", strerror(err));
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	210 TRACE(("leave dropbear_listen: failure, %s", strerror(err)));
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	211 return -1;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	212 }
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	213 }
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	214
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	215 TRACE(("leave dropbear_listen: success, %d socks bound", nsock));
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	216 return nsock;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	217 }
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	218
26 0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	219 /* Connect via TCP to a host. Connection will try ipv4 or ipv6, will
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	220 * return immediately if nonblocking is set. On failure, if errstring
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	221 * wasn't null, it will be a newly malloced error message */
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	222
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	223 /* TODO: maxfd */
26 0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	224 int connect_remote(const char* remotehost, const char* remoteport,
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	225 int nonblocking, char ** errstring) {
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	226
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	227 struct addrinfo res0 = NULL, res = NULL, hints;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	228 int sock;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	229 int err;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	230
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	231 TRACE(("enter connect_remote"));
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	232
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	233 if (errstring != NULL) {
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	234 *errstring = NULL;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	235 }
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	236
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	237 memset(&hints, 0, sizeof(hints));
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	238 hints.ai_socktype = SOCK_STREAM;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	239 hints.ai_family = PF_UNSPEC;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	240
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	241 err = getaddrinfo(remotehost, remoteport, &hints, &res0);
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	242 if (err) {
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	243 if (errstring != NULL && *errstring == NULL) {
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	244 int len;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	245 len = 20 + strlen(gai_strerror(err));
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	246 errstring = (char)m_malloc(len);
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	247 snprintf(*errstring, len, "Error resolving: %s", gai_strerror(err));
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	248 }
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	249 TRACE(("Error resolving: %s", gai_strerror(err)));
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	250 return -1;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	251 }
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	252
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	253 sock = -1;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	254 err = EADDRNOTAVAIL;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	255 for (res = res0; res; res = res->ai_next) {
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	256
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	257 sock = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	258 if (sock < 0) {
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	259 err = errno;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	260 continue;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	261 }
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	262
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	263 if (nonblocking) {
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	264 if (fcntl(sock, F_SETFL, O_NONBLOCK) < 0) {
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	265 close(sock);
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	266 sock = -1;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	267 if (errstring != NULL && *errstring == NULL) {
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	268 *errstring = m_strdup("Failed non-blocking");
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	269 }
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	270 TRACE(("Failed non-blocking: %s", strerror(errno)));
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	271 continue;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	272 }
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	273 }
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	274
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	275 if (connect(sock, res->ai_addr, res->ai_addrlen) < 0) {
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	276 if (errno == EINPROGRESS) {
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	277 TRACE(("Connect in progress"));
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	278 break;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	279 } else {
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	280 err = errno;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	281 close(sock);
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	282 sock = -1;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	283 continue;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	284 }
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	285 }
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	286
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	287 break; /* Success */
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	288 }
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	289
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	290 if (sock < 0) {
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	291 /* Failed */
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	292 if (errstring != NULL && *errstring == NULL) {
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	293 int len;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	294 len = 20 + strlen(strerror(err));
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	295 errstring = (char)m_malloc(len);
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	296 snprintf(*errstring, len, "Error connecting: %s", strerror(err));
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	297 }
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	298 TRACE(("Error connecting: %s", strerror(err)));
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	299 } else {
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	300 /* Success */
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	301 /* (err is used as a dummy var here) */
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	302 setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, (void*)&err, sizeof(err));
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	303 }
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	304
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	305 freeaddrinfo(res0);
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	306 if (sock > 0 && errstring != NULL && *errstring != NULL) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	307 m_free(*errstring);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	308 }
26 0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	309
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	310 TRACE(("leave connect_remote: sock %d\n", sock));
26 0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	311 return sock;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	312 }
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	313
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	314 /* Return a string representation of the socket address passed. The return
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	315 * value is allocated with malloc() */
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	316 unsigned char * getaddrstring(struct sockaddr_storage* addr, int withport) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	317
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	318 char hbuf[NI_MAXHOST], sbuf[NI_MAXSERV];
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	319 char *retstring = NULL;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	320 int ret;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	321 unsigned int len;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	322
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	323 len = sizeof(struct sockaddr_storage);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	324
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	325 ret = getnameinfo((struct sockaddr*)addr, len, hbuf, sizeof(hbuf),
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	326 sbuf, sizeof(sbuf), NI_NUMERICSERV \| NI_NUMERICHOST);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	327
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	328 if (ret != 0) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	329 /* This is a fairly bad failure - it'll fallback to IP if it
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	330 * just can't resolve */
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	331 dropbear_exit("failed lookup (%d, %d)", ret, errno);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	332 }
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	333
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	334 if (withport) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	335 len = strlen(hbuf) + 2 + strlen(sbuf);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	336 retstring = (char*)m_malloc(len);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	337 snprintf(retstring, len, "%s:%s", hbuf, sbuf);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	338 } else {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	339 retstring = m_strdup(hbuf);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	340 }
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	341
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	342 return retstring;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	343
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	344 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	345
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	346 /* Get the hostname corresponding to the address addr. On failure, the IP
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	347 * address is returned. The return value is allocated with strdup() */
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	348 char* getaddrhostname(struct sockaddr_storage * addr) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	349
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	350 char hbuf[NI_MAXHOST];
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	351 char sbuf[NI_MAXSERV];
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	352 int ret;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	353 unsigned int len;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	354
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	355 len = sizeof(struct sockaddr_storage);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	356
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	357 ret = getnameinfo((struct sockaddr*)addr, len, hbuf, sizeof(hbuf),
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	358 sbuf, sizeof(sbuf), NI_NUMERICSERV);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	359
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	360 if (ret != 0) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	361 /* On some systems (Darwin does it) we get EINTR from getnameinfo
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	362 * somehow. Eew. So we'll just return the IP, since that doesn't seem
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	363 * to exhibit that behaviour. */
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	364 return getaddrstring(addr, 0);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	365 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	366
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	367 return m_strdup(hbuf);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	368 }
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	369
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	370 #ifdef DEBUG_TRACE
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	371 void printhex(unsigned char* buf, int len) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	372
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	373 int i;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	374
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	375 for (i = 0; i < len; i++) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	376 fprintf(stderr, "%02x", buf[i]);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	377 if (i % 16 == 15) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	378 fprintf(stderr, "\n");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	379 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	380 else if (i % 2 == 1) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	381 fprintf(stderr, " ");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	382 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	383 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	384 fprintf(stderr, "\n");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	385 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	386 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	387
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	388 /* Strip all control characters from text (a null-terminated string), except
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	389 * for '\n', '\r' and '\t'.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	390 * The result returned is a newly allocated string, this must be free()d after
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	391 * use */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	392 char * stripcontrol(const char * text) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	393
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	394 char * ret;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	395 int len, pos;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	396 int i;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	397
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	398 len = strlen(text);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	399 ret = m_malloc(len+1);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	400
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	401 pos = 0;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	402 for (i = 0; i < len; i++) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	403 if ((text[i] <= '~' && text[i] >= ' ') /* normal printable range */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	404 \|\| text[i] == '\n' \|\| text[i] == '\r' \|\| text[i] == '\t') {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	405 ret[pos] = text[i];
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	406 pos++;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	407 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	408 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	409 ret[pos] = 0x0;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	410 return ret;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	411 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	412
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	413
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	414 /* reads the contents of filename into the buffer buf, from the current
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	415 * position, either to the end of the file, or the buffer being full.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	416 * Returns DROPBEAR_SUCCESS or DROPBEAR_FAILURE */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	417 int buf_readfile(buffer* buf, const char* filename) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	418
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	419 int fd;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	420 int len;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	421 int maxlen;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	422
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	423 fd = open(filename, O_RDONLY);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	424
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	425 if (fd < 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	426 close(fd);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	427 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	428 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	429
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	430 do {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	431 maxlen = buf->size - buf->pos;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	432 len = read(fd, buf_getwriteptr(buf, maxlen),
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	433 maxlen);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	434 buf_incrwritepos(buf, len);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	435 } while (len < maxlen && len > 0);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	436
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	437 close(fd);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	438 return DROPBEAR_SUCCESS;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	439 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	440
51 095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	441 /* get a line from the file into buffer in the style expected for an
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	442 * authkeys file.
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	443 * Will return DROPBEAR_SUCCESS if data is read, or DROPBEAR_FAILURE on EOF.*/
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	444 /* Only used for ~/.ssh/known_hosts and ~/.ssh/authorized_keys */
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	445 #if defined(DROPBEAR_CLIENT) \|\| defined(DROPBEAR_PUBKEY_AUTH)
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	446 int buf_getline(buffer * line, FILE * authfile) {
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	447
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	448 int c = EOF;
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	449
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	450 TRACE(("enter buf_getline"));
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	451
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	452 buf_setpos(line, 0);
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	453 buf_setlen(line, 0);
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	454
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	455 while (line->pos < line->size) {
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	456
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	457 c = fgetc(authfile); /getc() is weird with some uClibc systems/
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	458 if (c == EOF \|\| c == '\n' \|\| c == '\r') {
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	459 goto out;
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	460 }
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	461
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	462 buf_putbyte(line, (unsigned char)c);
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	463 }
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	464
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	465 TRACE(("leave getauthline: line too long"));
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	466 /* We return success, but the line length will be zeroed - ie we just
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	467 * ignore that line */
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	468 buf_setlen(line, 0);
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	469
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	470 out:
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	471
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	472 buf_setpos(line, 0);
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	473
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	474 /* if we didn't read anything before EOF or error, exit */
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	475 if (c == EOF && line->pos == 0) {
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	476 TRACE(("leave getauthline: failure"));
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	477 return DROPBEAR_FAILURE;
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	478 } else {
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	479 TRACE(("leave getauthline: success"));
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	480 return DROPBEAR_SUCCESS;
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	481 }
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	482
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	483 TRACE(("leave buf_getline"));
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	484 }
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	485 #endif
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	486
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	487 /* loop until the socket is closed (in case of EINTR) or
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	488 * we get and error.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	489 * Returns DROPBEAR_SUCCESS or DROPBEAR_FAILURE */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	490 int m_close(int fd) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	491
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	492 int val;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	493 do {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	494 val = close(fd);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	495 } while (val < 0 && errno == EINTR);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	496
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	497 if (val == 0 \|\| errno == EBADF) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	498 return DROPBEAR_SUCCESS;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	499 } else {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	500 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	501 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	502 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	503
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	504 void * m_malloc(size_t size) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	505
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	506 void* ret;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	507
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	508 if (size == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	509 dropbear_exit("m_malloc failed");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	510 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	511 ret = malloc(size);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	512 if (ret == NULL) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	513 dropbear_exit("m_malloc failed");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	514 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	515 return ret;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	516
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	517 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	518
11 f76c9389e9e0 Mostly done with the listener changeover Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	519 void * m_strdup(const char * str) {
f76c9389e9e0 Mostly done with the listener changeover Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	520 char* ret;
f76c9389e9e0 Mostly done with the listener changeover Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	521
f76c9389e9e0 Mostly done with the listener changeover Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	522 ret = strdup(str);
f76c9389e9e0 Mostly done with the listener changeover Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	523 if (ret == NULL) {
f76c9389e9e0 Mostly done with the listener changeover Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	524 dropbear_exit("m_strdup failed");
f76c9389e9e0 Mostly done with the listener changeover Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	525 }
f76c9389e9e0 Mostly done with the listener changeover Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	526 return ret;
f76c9389e9e0 Mostly done with the listener changeover Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	527 }
f76c9389e9e0 Mostly done with the listener changeover Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	528
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	529 void __m_free(void* ptr) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	530 if (ptr != NULL) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	531 free(ptr);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	532 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	533 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	534
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	535 void * m_realloc(void* ptr, size_t size) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	536
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	537 void *ret;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	538
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	539 if (size == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	540 dropbear_exit("m_realloc failed");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	541 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	542 ret = realloc(ptr, size);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	543 if (ret == NULL) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	544 dropbear_exit("m_realloc failed");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	545 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	546 return ret;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	547 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	548
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	549 /* Clear the data, based on the method in David Wheeler's
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	550 * "Secure Programming for Linux and Unix HOWTO" */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	551 void m_burn(void *data, unsigned int len) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	552 volatile char *p = data;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	553
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	554 if (data == NULL)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	555 return;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	556 while (len--) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	557 *p++ = 0x66;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	558 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	559 }
26 0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	560

Mercurial > dropbear

annotate dbutil.c @ 64:efb5e0b335cf