dropbear: dbutil.c annotate

annotate dbutil.c @ 243:0056419cf0f4

* ensure that we only handle open confirmation/failure for channels where it is expected

author	Matt Johnston <matt@ucc.asn.au>
date	Mon, 05 Sep 2005 17:10:32 +0000
parents	3311f4aa52cb
children	b02e8eef3c3a

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
73 0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	59 static void generic_dropbear_exit(int exitcode, const char* format,
0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	60 va_list param);
0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	61 static void generic_dropbear_log(int priority, const char* format,
0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	62 va_list param);
0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	63
0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	64 void (_dropbear_exit)(int exitcode, const char format, va_list param)
0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	65 = generic_dropbear_exit;
0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	66 void (_dropbear_log)(int priority, const char format, va_list param)
0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	67 = generic_dropbear_log;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	68
94 c85c88500ea6 DEBUG_TRACE now only triggers with -v on the cmdline Matt Johnston <matt@ucc.asn.au> parents: 73 diff changeset	69 #ifdef DEBUG_TRACE
c85c88500ea6 DEBUG_TRACE now only triggers with -v on the cmdline Matt Johnston <matt@ucc.asn.au> parents: 73 diff changeset	70 int debug_trace = 0;
c85c88500ea6 DEBUG_TRACE now only triggers with -v on the cmdline Matt Johnston <matt@ucc.asn.au> parents: 73 diff changeset	71 #endif
c85c88500ea6 DEBUG_TRACE now only triggers with -v on the cmdline Matt Johnston <matt@ucc.asn.au> parents: 73 diff changeset	72
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	73 #ifndef DISABLE_SYSLOG
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	74 void startsyslog() {
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 openlog(PROGNAME, LOG_PID, LOG_AUTHPRIV);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	77
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	78 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	79 #endif /* DISABLE_SYSLOG */
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 /* the "format" string must be <= 100 characters */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	82 void dropbear_close(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_SUCCESS, 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 void dropbear_exit(const char* format, ...) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	93
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	94 va_list param;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	95
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	96 va_start(param, format);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	97 _dropbear_exit(EXIT_FAILURE, format, param);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	98 va_end(param);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	99 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	100
73 0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	101 static void generic_dropbear_exit(int exitcode, const char* format,
0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	102 va_list param) {
0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	103
0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	104 char fmtbuf[300];
0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	105
0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	106 snprintf(fmtbuf, sizeof(fmtbuf), "Exited: %s", format);
0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	107
0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	108 _dropbear_log(LOG_INFO, fmtbuf, param);
0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	109
0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	110 exit(exitcode);
0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	111 }
0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	112
241 c5d3ef11155f * use own assertions which should get logged properly Matt Johnston <matt@ucc.asn.au> parents: 198 diff changeset	113 void fail_assert(const char* expr, const char* file, int line) {
c5d3ef11155f * use own assertions which should get logged properly Matt Johnston <matt@ucc.asn.au> parents: 198 diff changeset	114 dropbear_exit("failed assertion (%s:%d): `%s'", file, line, expr);
c5d3ef11155f * use own assertions which should get logged properly Matt Johnston <matt@ucc.asn.au> parents: 198 diff changeset	115 }
c5d3ef11155f * use own assertions which should get logged properly Matt Johnston <matt@ucc.asn.au> parents: 198 diff changeset	116
108 10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	117 static void generic_dropbear_log(int UNUSED(priority), const char* format,
73 0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	118 va_list param) {
0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	119
0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	120 char printbuf[1024];
0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	121
0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	122 vsnprintf(printbuf, sizeof(printbuf), format, param);
0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	123
0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	124 fprintf(stderr, "%s\n", printbuf);
0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	125
0bf5cebe622c Dropbearkey can now print out pubkey portions Matt Johnston <matt@ucc.asn.au> parents: 70 diff changeset	126 }
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	127
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	128 /* 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	129 void dropbear_log(int priority, const char* format, ...) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	130
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	131 va_list param;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	132
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	133 va_start(param, format);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	134 _dropbear_log(priority, format, param);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	135 va_end(param);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	136 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	137
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	138
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	139 #ifdef DEBUG_TRACE
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	140 void dropbear_trace(const char* format, ...) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	141
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	142 va_list param;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	143
94 c85c88500ea6 DEBUG_TRACE now only triggers with -v on the cmdline Matt Johnston <matt@ucc.asn.au> parents: 73 diff changeset	144 if (!debug_trace) {
c85c88500ea6 DEBUG_TRACE now only triggers with -v on the cmdline Matt Johnston <matt@ucc.asn.au> parents: 73 diff changeset	145 return;
c85c88500ea6 DEBUG_TRACE now only triggers with -v on the cmdline Matt Johnston <matt@ucc.asn.au> parents: 73 diff changeset	146 }
c85c88500ea6 DEBUG_TRACE now only triggers with -v on the cmdline Matt Johnston <matt@ucc.asn.au> parents: 73 diff changeset	147
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	148 va_start(param, format);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	149 fprintf(stderr, "TRACE: ");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	150 vfprintf(stderr, format, param);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	151 fprintf(stderr, "\n");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	152 va_end(param);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	153 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	154 #endif /* DEBUG_TRACE */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	155
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	156 /* 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	157 * 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	158 * 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	159 * 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	160 * string.*/
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	161 int dropbear_listen(const char* address, const char* port,
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	162 int socks, unsigned int sockcount, char errstring, int maxfd) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	163
70 b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 68 diff changeset	164 struct addrinfo hints, res = NULL, res0 = NULL;
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	165 int err;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	166 unsigned int nsock;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	167 struct linger linger;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	168 int val;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	169 int sock;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	170
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 161 diff changeset	171 TRACE(("enter dropbear_listen"))
62 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 memset(&hints, 0, sizeof(hints));
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	174 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	175 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	176
dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	177 if (address && address[0] == '\0') {
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 161 diff changeset	178 TRACE(("dropbear_listen: local loopback"))
63 dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	179 address = NULL;
dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	180 } else {
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 161 diff changeset	181 TRACE(("dropbear_listen: not local loopback"))
63 dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	182 hints.ai_flags = AI_PASSIVE;
dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	183 }
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	184 err = getaddrinfo(address, port, &hints, &res0);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	185
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	186 if (err) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	187 if (errstring != NULL && *errstring == NULL) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	188 int len;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	189 len = 20 + strlen(gai_strerror(err));
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	190 errstring = (char)m_malloc(len);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	191 snprintf(*errstring, len, "Error resolving: %s", gai_strerror(err));
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	192 }
239 e5ad9fa8b1fa add a missing freeaddrinfo() Matt Johnston <matt@ucc.asn.au> parents: 198 diff changeset	193 if (res0) {
e5ad9fa8b1fa add a missing freeaddrinfo() Matt Johnston <matt@ucc.asn.au> parents: 198 diff changeset	194 freeaddrinfo(res0);
e5ad9fa8b1fa add a missing freeaddrinfo() Matt Johnston <matt@ucc.asn.au> parents: 198 diff changeset	195 res0 = NULL;
e5ad9fa8b1fa add a missing freeaddrinfo() Matt Johnston <matt@ucc.asn.au> parents: 198 diff changeset	196 }
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 161 diff changeset	197 TRACE(("leave dropbear_listen: failed resolving"))
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	198 return -1;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	199 }
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
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	202 nsock = 0;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	203 for (res = res0; res != NULL && nsock < sockcount;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	204 res = res->ai_next) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	205
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	206 /* Get a socket */
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	207 socks[nsock] = socket(res->ai_family, res->ai_socktype,
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	208 res->ai_protocol);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	209
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	210 sock = socks[nsock]; /* For clarity */
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	211
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	212 if (sock < 0) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	213 err = errno;
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 161 diff changeset	214 TRACE(("socket() failed"))
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	215 continue;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	216 }
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 /* Various useful socket options */
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	219 val = 1;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	220 /* set to reuse, quick timeout */
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	221 setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void*) &val, sizeof(val));
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	222 linger.l_onoff = 1;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	223 linger.l_linger = 5;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	224 setsockopt(sock, SOL_SOCKET, SO_LINGER, (void*)&linger, sizeof(linger));
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	225
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	226 /* disable nagle */
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	227 setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, (void*)&val, sizeof(val));
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	228
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	229 if (bind(sock, res->ai_addr, res->ai_addrlen) < 0) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	230 err = errno;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	231 close(sock);
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 161 diff changeset	232 TRACE(("bind(%s) failed", port))
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	233 continue;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	234 }
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	235
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	236 if (listen(sock, 20) < 0) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	237 err = errno;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	238 close(sock);
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 161 diff changeset	239 TRACE(("listen() failed"))
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	240 continue;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	241 }
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	242
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	243 maxfd = MAX(maxfd, sock);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	244
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	245 nsock++;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	246 }
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	247
239 e5ad9fa8b1fa add a missing freeaddrinfo() Matt Johnston <matt@ucc.asn.au> parents: 198 diff changeset	248 if (res0) {
e5ad9fa8b1fa add a missing freeaddrinfo() Matt Johnston <matt@ucc.asn.au> parents: 198 diff changeset	249 freeaddrinfo(res0);
e5ad9fa8b1fa add a missing freeaddrinfo() Matt Johnston <matt@ucc.asn.au> parents: 198 diff changeset	250 res0 = NULL;
e5ad9fa8b1fa add a missing freeaddrinfo() Matt Johnston <matt@ucc.asn.au> parents: 198 diff changeset	251 }
e5ad9fa8b1fa add a missing freeaddrinfo() Matt Johnston <matt@ucc.asn.au> parents: 198 diff changeset	252
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	253 if (nsock == 0) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	254 if (errstring != NULL && *errstring == NULL) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	255 int len;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	256 len = 20 + strlen(strerror(err));
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	257 errstring = (char)m_malloc(len);
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	258 snprintf(*errstring, len, "Error listening: %s", strerror(err));
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 161 diff changeset	259 TRACE(("leave dropbear_listen: failure, %s", strerror(err)))
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	260 return -1;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	261 }
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	262 }
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	263
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 161 diff changeset	264 TRACE(("leave dropbear_listen: success, %d socks bound", nsock))
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	265 return nsock;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	266 }
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	267
26 0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	268 /* 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	269 * return immediately if nonblocking is set. On failure, if errstring
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	270 * wasn't null, it will be a newly malloced error message */
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	271
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	272 /* TODO: maxfd */
26 0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	273 int connect_remote(const char* remotehost, const char* remoteport,
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	274 int nonblocking, char ** errstring) {
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	275
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	276 struct addrinfo res0 = NULL, res = NULL, hints;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	277 int sock;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	278 int err;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	279
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 161 diff changeset	280 TRACE(("enter connect_remote"))
26 0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	281
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	282 if (errstring != NULL) {
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	283 *errstring = NULL;
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 memset(&hints, 0, sizeof(hints));
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	287 hints.ai_socktype = SOCK_STREAM;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	288 hints.ai_family = PF_UNSPEC;
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 err = getaddrinfo(remotehost, remoteport, &hints, &res0);
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	291 if (err) {
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(gai_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 resolving: %s", gai_strerror(err));
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	297 }
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 161 diff changeset	298 TRACE(("Error resolving: %s", gai_strerror(err)))
26 0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	299 return -1;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	300 }
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	301
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	302 sock = -1;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	303 err = EADDRNOTAVAIL;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	304 for (res = res0; res; res = res->ai_next) {
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	305
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	306 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	307 if (sock < 0) {
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	308 err = errno;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	309 continue;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	310 }
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	311
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	312 if (nonblocking) {
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	313 if (fcntl(sock, F_SETFL, O_NONBLOCK) < 0) {
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	314 close(sock);
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	315 sock = -1;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	316 if (errstring != NULL && *errstring == NULL) {
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	317 *errstring = m_strdup("Failed non-blocking");
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	318 }
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 161 diff changeset	319 TRACE(("Failed non-blocking: %s", strerror(errno)))
26 0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	320 continue;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	321 }
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	322 }
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	323
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	324 if (connect(sock, res->ai_addr, res->ai_addrlen) < 0) {
70 b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 68 diff changeset	325 if (errno == EINPROGRESS && nonblocking) {
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 161 diff changeset	326 TRACE(("Connect in progress"))
26 0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	327 break;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	328 } else {
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	329 err = errno;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	330 close(sock);
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	331 sock = -1;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	332 continue;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	333 }
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	334 }
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	335
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	336 break; /* Success */
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	337 }
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	338
70 b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 68 diff changeset	339 if (sock < 0 && !(errno == EINPROGRESS && nonblocking)) {
26 0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	340 /* Failed */
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	341 if (errstring != NULL && *errstring == NULL) {
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	342 int len;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	343 len = 20 + strlen(strerror(err));
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	344 errstring = (char)m_malloc(len);
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	345 snprintf(*errstring, len, "Error connecting: %s", strerror(err));
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	346 }
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 161 diff changeset	347 TRACE(("Error connecting: %s", strerror(err)))
26 0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	348 } else {
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	349 /* Success */
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	350 /* (err is used as a dummy var here) */
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	351 setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, (void*)&err, sizeof(err));
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	352 }
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	353
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	354 freeaddrinfo(res0);
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	355 if (sock > 0 && errstring != NULL && *errstring != NULL) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	356 m_free(*errstring);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	357 }
26 0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	358
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 161 diff changeset	359 TRACE(("leave connect_remote: sock %d\n", sock))
26 0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	360 return sock;
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	361 }
0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	362
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	363 /* 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	364 * value is allocated with malloc() */
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	365 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	366
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	367 char hbuf[NI_MAXHOST], sbuf[NI_MAXSERV];
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	368 char *retstring = NULL;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	369 int ret;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	370 unsigned int len;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	371
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	372 len = sizeof(struct sockaddr_storage);
160 7ceceb46d655 Fix so that getnameinfo() is passed the address-specific structure size. This Matt Johnston <matt@ucc.asn.au> parents: 150 diff changeset	373 /* Some platforms such as Solaris 8 require that len is the length
7ceceb46d655 Fix so that getnameinfo() is passed the address-specific structure size. This Matt Johnston <matt@ucc.asn.au> parents: 150 diff changeset	374 * of the specific structure. */
7ceceb46d655 Fix so that getnameinfo() is passed the address-specific structure size. This Matt Johnston <matt@ucc.asn.au> parents: 150 diff changeset	375 if (addr->ss_family == AF_INET) {
7ceceb46d655 Fix so that getnameinfo() is passed the address-specific structure size. This Matt Johnston <matt@ucc.asn.au> parents: 150 diff changeset	376 len = sizeof(struct sockaddr_in);
7ceceb46d655 Fix so that getnameinfo() is passed the address-specific structure size. This Matt Johnston <matt@ucc.asn.au> parents: 150 diff changeset	377 }
7ceceb46d655 Fix so that getnameinfo() is passed the address-specific structure size. This Matt Johnston <matt@ucc.asn.au> parents: 150 diff changeset	378 #ifdef AF_INET6
7ceceb46d655 Fix so that getnameinfo() is passed the address-specific structure size. This Matt Johnston <matt@ucc.asn.au> parents: 150 diff changeset	379 if (addr->ss_family == AF_INET6) {
7ceceb46d655 Fix so that getnameinfo() is passed the address-specific structure size. This Matt Johnston <matt@ucc.asn.au> parents: 150 diff changeset	380 len = sizeof(struct sockaddr_in6);
7ceceb46d655 Fix so that getnameinfo() is passed the address-specific structure size. This Matt Johnston <matt@ucc.asn.au> parents: 150 diff changeset	381 }
7ceceb46d655 Fix so that getnameinfo() is passed the address-specific structure size. This Matt Johnston <matt@ucc.asn.au> parents: 150 diff changeset	382 #endif
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	383
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	384 ret = getnameinfo((struct sockaddr*)addr, len, hbuf, sizeof(hbuf),
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	385 sbuf, sizeof(sbuf), NI_NUMERICSERV \| NI_NUMERICHOST);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	386
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	387 if (ret != 0) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	388 /* 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	389 * just can't resolve */
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	390 dropbear_exit("failed lookup (%d, %d)", ret, errno);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	391 }
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	392
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	393 if (withport) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	394 len = strlen(hbuf) + 2 + strlen(sbuf);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	395 retstring = (char*)m_malloc(len);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	396 snprintf(retstring, len, "%s:%s", hbuf, sbuf);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	397 } else {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	398 retstring = m_strdup(hbuf);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	399 }
4 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 return retstring;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	402
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	403 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	404
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	405 /* 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	406 * address is returned. The return value is allocated with strdup() */
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	407 char* getaddrhostname(struct sockaddr_storage * addr) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	408
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	409 char hbuf[NI_MAXHOST];
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	410 char sbuf[NI_MAXSERV];
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	411 int ret;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	412 unsigned int len;
172 3e49d8d18005 * respect DO_HOST_LOOKUP config option Matt Johnston <matt@ucc.asn.au> parents: 165 diff changeset	413 #ifdef DO_HOST_LOOKUP
3e49d8d18005 * respect DO_HOST_LOOKUP config option Matt Johnston <matt@ucc.asn.au> parents: 165 diff changeset	414 const int flags = NI_NUMERICSERV;
3e49d8d18005 * respect DO_HOST_LOOKUP config option Matt Johnston <matt@ucc.asn.au> parents: 165 diff changeset	415 #else
3e49d8d18005 * respect DO_HOST_LOOKUP config option Matt Johnston <matt@ucc.asn.au> parents: 165 diff changeset	416 const int flags = NI_NUMERICHOST \| NI_NUMERICSERV;
3e49d8d18005 * respect DO_HOST_LOOKUP config option Matt Johnston <matt@ucc.asn.au> parents: 165 diff changeset	417 #endif
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	418
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	419 len = sizeof(struct sockaddr_storage);
160 7ceceb46d655 Fix so that getnameinfo() is passed the address-specific structure size. This Matt Johnston <matt@ucc.asn.au> parents: 150 diff changeset	420 /* Some platforms such as Solaris 8 require that len is the length
7ceceb46d655 Fix so that getnameinfo() is passed the address-specific structure size. This Matt Johnston <matt@ucc.asn.au> parents: 150 diff changeset	421 * of the specific structure. */
7ceceb46d655 Fix so that getnameinfo() is passed the address-specific structure size. This Matt Johnston <matt@ucc.asn.au> parents: 150 diff changeset	422 if (addr->ss_family == AF_INET) {
7ceceb46d655 Fix so that getnameinfo() is passed the address-specific structure size. This Matt Johnston <matt@ucc.asn.au> parents: 150 diff changeset	423 len = sizeof(struct sockaddr_in);
7ceceb46d655 Fix so that getnameinfo() is passed the address-specific structure size. This Matt Johnston <matt@ucc.asn.au> parents: 150 diff changeset	424 }
7ceceb46d655 Fix so that getnameinfo() is passed the address-specific structure size. This Matt Johnston <matt@ucc.asn.au> parents: 150 diff changeset	425 #ifdef AF_INET6
7ceceb46d655 Fix so that getnameinfo() is passed the address-specific structure size. This Matt Johnston <matt@ucc.asn.au> parents: 150 diff changeset	426 if (addr->ss_family == AF_INET6) {
7ceceb46d655 Fix so that getnameinfo() is passed the address-specific structure size. This Matt Johnston <matt@ucc.asn.au> parents: 150 diff changeset	427 len = sizeof(struct sockaddr_in6);
7ceceb46d655 Fix so that getnameinfo() is passed the address-specific structure size. This Matt Johnston <matt@ucc.asn.au> parents: 150 diff changeset	428 }
7ceceb46d655 Fix so that getnameinfo() is passed the address-specific structure size. This Matt Johnston <matt@ucc.asn.au> parents: 150 diff changeset	429 #endif
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	430
172 3e49d8d18005 * respect DO_HOST_LOOKUP config option Matt Johnston <matt@ucc.asn.au> parents: 165 diff changeset	431
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	432 ret = getnameinfo((struct sockaddr*)addr, len, hbuf, sizeof(hbuf),
172 3e49d8d18005 * respect DO_HOST_LOOKUP config option Matt Johnston <matt@ucc.asn.au> parents: 165 diff changeset	433 sbuf, sizeof(sbuf), flags);
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	434
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	435 if (ret != 0) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	436 /* On some systems (Darwin does it) we get EINTR from getnameinfo
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	437 * 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	438 * to exhibit that behaviour. */
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	439 return getaddrstring(addr, 0);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	440 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	441
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	442 return m_strdup(hbuf);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	443 }
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: 51 diff changeset	444
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	445 #ifdef DEBUG_TRACE
198 65585699d980 * add a "label" argument to printhex() Matt Johnston <matt@ucc.asn.au> parents: 173 diff changeset	446 void printhex(const char * label, const unsigned char * buf, int len) {
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	447
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	448 int i;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	449
198 65585699d980 * add a "label" argument to printhex() Matt Johnston <matt@ucc.asn.au> parents: 173 diff changeset	450 fprintf(stderr, "%s\n", label);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	451 for (i = 0; i < len; i++) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	452 fprintf(stderr, "%02x", buf[i]);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	453 if (i % 16 == 15) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	454 fprintf(stderr, "\n");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	455 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	456 else if (i % 2 == 1) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	457 fprintf(stderr, " ");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	458 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	459 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	460 fprintf(stderr, "\n");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	461 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	462 #endif
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	463
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	464 /* 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	465 * for '\n', '\r' and '\t'.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	466 * 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	467 * use */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	468 char * stripcontrol(const char * text) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	469
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	470 char * ret;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	471 int len, pos;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	472 int i;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	473
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	474 len = strlen(text);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	475 ret = m_malloc(len+1);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	476
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	477 pos = 0;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	478 for (i = 0; i < len; i++) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	479 if ((text[i] <= '~' && text[i] >= ' ') /* normal printable range */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	480 \|\| 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	481 ret[pos] = text[i];
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	482 pos++;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	483 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	484 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	485 ret[pos] = 0x0;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	486 return ret;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	487 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	488
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	489
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	490 /* 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	491 * 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	492 * Returns DROPBEAR_SUCCESS or DROPBEAR_FAILURE */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	493 int buf_readfile(buffer* buf, const char* filename) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	494
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	495 int fd;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	496 int len;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	497 int maxlen;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	498
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	499 fd = open(filename, O_RDONLY);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	500
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	501 if (fd < 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	502 close(fd);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	503 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	504 }
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 do {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	507 maxlen = buf->size - buf->pos;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	508 len = read(fd, buf_getwriteptr(buf, maxlen),
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	509 maxlen);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	510 buf_incrwritepos(buf, len);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	511 } while (len < maxlen && len > 0);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	512
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	513 close(fd);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	514 return DROPBEAR_SUCCESS;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	515 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	516
51 095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	517 /* 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	518 * authkeys file.
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	519 * 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	520 /* Only used for ~/.ssh/known_hosts and ~/.ssh/authorized_keys */
68 eee77ac31ccc cleaning up the pubkey defines Matt Johnston <matt@ucc.asn.au> parents: 64 diff changeset	521 #if defined(DROPBEAR_CLIENT) \|\| defined(ENABLE_SVR_PUBKEY_AUTH)
51 095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	522 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	523
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	524 int c = EOF;
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	525
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 161 diff changeset	526 TRACE(("enter buf_getline"))
51 095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	527
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	528 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	529 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	530
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	531 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	532
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	533 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	534 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	535 goto out;
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	536 }
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	537
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	538 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	539 }
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	540
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 161 diff changeset	541 TRACE(("leave getauthline: line too long"))
51 095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	542 /* 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	543 * ignore that line */
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	544 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	545
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	546 out:
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	547
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	548
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	549 /* 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	550 if (c == EOF && line->pos == 0) {
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 161 diff changeset	551 TRACE(("leave buf_getline: failure"))
51 095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	552 return DROPBEAR_FAILURE;
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	553 } else {
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 161 diff changeset	554 TRACE(("leave buf_getline: success"))
117 e0acad552a92 Read the last line of a file without a finishing '\n' correctly Matt Johnston <matt@ucc.asn.au> parents: 109 diff changeset	555 buf_setpos(line, 0);
51 095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	556 return DROPBEAR_SUCCESS;
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	557 }
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	558
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	559 }
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	560 #endif
095d689fed16 - Hostkey checking is mostly there, just aren't appending yet. Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	561
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	562 /* 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	563 * we get and error.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	564 * Returns DROPBEAR_SUCCESS or DROPBEAR_FAILURE */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	565 int m_close(int fd) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	566
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	567 int val;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	568 do {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	569 val = close(fd);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	570 } while (val < 0 && errno == EINTR);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	571
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	572 if (val == 0 \|\| errno == EBADF) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	573 return DROPBEAR_SUCCESS;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	574 } else {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	575 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	576 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	577 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	578
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	579 void * m_malloc(size_t size) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	580
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	581 void* ret;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	582
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	583 if (size == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	584 dropbear_exit("m_malloc failed");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	585 }
123 a0db9a23f6d4 calloc memory rather than mallocing it - can't hurt too much, and is Matt Johnston <matt@ucc.asn.au> parents: 117 diff changeset	586 ret = calloc(1, size);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	587 if (ret == NULL) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	588 dropbear_exit("m_malloc failed");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	589 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	590 return ret;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	591
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	592 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	593
11 f76c9389e9e0 Mostly done with the listener changeover Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	594 void * m_strdup(const char * str) {
f76c9389e9e0 Mostly done with the listener changeover Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	595 char* ret;
f76c9389e9e0 Mostly done with the listener changeover Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	596
f76c9389e9e0 Mostly done with the listener changeover Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	597 ret = strdup(str);
f76c9389e9e0 Mostly done with the listener changeover Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	598 if (ret == NULL) {
f76c9389e9e0 Mostly done with the listener changeover Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	599 dropbear_exit("m_strdup failed");
f76c9389e9e0 Mostly done with the listener changeover Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	600 }
f76c9389e9e0 Mostly done with the listener changeover Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	601 return ret;
f76c9389e9e0 Mostly done with the listener changeover Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	602 }
f76c9389e9e0 Mostly done with the listener changeover Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	603
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	604 void __m_free(void* ptr) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	605 if (ptr != NULL) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	606 free(ptr);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	607 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	608 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	609
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	610 void * m_realloc(void* ptr, size_t size) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	611
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	612 void *ret;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	613
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	614 if (size == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	615 dropbear_exit("m_realloc failed");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	616 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	617 ret = realloc(ptr, size);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	618 if (ret == NULL) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	619 dropbear_exit("m_realloc failed");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	620 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	621 return ret;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	622 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	623
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	624 /* 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	625 * "Secure Programming for Linux and Unix HOWTO" */
161 b9d3f725e00b 0.44 release changes Matt Johnston <matt@ucc.asn.au> parents: 160 diff changeset	626 /* Beware of calling this from within dbutil.c - things might get
b9d3f725e00b 0.44 release changes Matt Johnston <matt@ucc.asn.au> parents: 160 diff changeset	627 * optimised away */
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	628 void m_burn(void *data, unsigned int len) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	629 volatile char *p = data;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	630
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	631 if (data == NULL)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	632 return;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	633 while (len--) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	634 *p++ = 0x66;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	635 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	636 }
26 0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 11 diff changeset	637
109 2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	638
2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	639 void setnonblocking(int fd) {
2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	640
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 161 diff changeset	641 TRACE(("setnonblocking: %d", fd))
109 2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	642
2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	643 if (fcntl(fd, F_SETFL, O_NONBLOCK) < 0) {
173 257f09a63dab * add SSH_ASKPASS support (based on patch from Paul Whittaker Matt Johnston <matt@ucc.asn.au> parents: 172 diff changeset	644 if (errno == ENODEV) {
257f09a63dab * add SSH_ASKPASS support (based on patch from Paul Whittaker Matt Johnston <matt@ucc.asn.au> parents: 172 diff changeset	645 /* Some devices (like /dev/null redirected in)
257f09a63dab * add SSH_ASKPASS support (based on patch from Paul Whittaker Matt Johnston <matt@ucc.asn.au> parents: 172 diff changeset	646 * can't be set to non-blocking */
257f09a63dab * add SSH_ASKPASS support (based on patch from Paul Whittaker Matt Johnston <matt@ucc.asn.au> parents: 172 diff changeset	647 TRACE(("ignoring ENODEV for setnonblocking"))
257f09a63dab * add SSH_ASKPASS support (based on patch from Paul Whittaker Matt Johnston <matt@ucc.asn.au> parents: 172 diff changeset	648 } else {
257f09a63dab * add SSH_ASKPASS support (based on patch from Paul Whittaker Matt Johnston <matt@ucc.asn.au> parents: 172 diff changeset	649 dropbear_exit("Couldn't set nonblocking");
257f09a63dab * add SSH_ASKPASS support (based on patch from Paul Whittaker Matt Johnston <matt@ucc.asn.au> parents: 172 diff changeset	650 }
109 2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	651 }
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 161 diff changeset	652 TRACE(("leave setnonblocking"))
109 2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	653 }

Mercurial > dropbear

annotate dbutil.c @ 243:0056419cf0f4