annotate dbutil.c @ 45:9ee8996a375f

Pubkey auth is mostly there for the client. Something strange with remote hostkey verification though.
author Matt Johnston <matt@ucc.asn.au>
date Tue, 03 Aug 2004 17:26:56 +0000
parents b4874d772210
children 095d689fed16
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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
26
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
116 /* Connect via TCP to a host. Connection will try ipv4 or ipv6, will
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
117 * return immediately if nonblocking is set */
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
118 int connect_remote(const char* remotehost, const char* remoteport,
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
119 int nonblocking, char ** errstring) {
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
120
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
121 struct addrinfo *res0 = NULL, *res = NULL, hints;
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
122 int sock;
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
123 int err;
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
124
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
125 TRACE(("enter connect_remote"));
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
126
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
127 if (errstring != NULL) {
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
128 *errstring = NULL;
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
129 }
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
130
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
131 memset(&hints, 0, sizeof(hints));
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
132 hints.ai_socktype = SOCK_STREAM;
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
133 hints.ai_family = PF_UNSPEC;
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
134
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
135 err = getaddrinfo(remotehost, remoteport, &hints, &res0);
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
136 if (err) {
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
137 if (errstring != NULL && *errstring == NULL) {
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
138 int len;
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
139 len = 20 + strlen(gai_strerror(err));
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
140 *errstring = (char*)m_malloc(len);
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
141 snprintf(*errstring, len, "Error resolving: %s", gai_strerror(err));
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
142 }
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
143 TRACE(("Error resolving: %s", gai_strerror(err)));
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
144 return -1;
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
145 }
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
146
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
147 sock = -1;
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
148 err = EADDRNOTAVAIL;
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
149 for (res = res0; res; res = res->ai_next) {
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
150
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
151 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
152 if (sock < 0) {
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
153 err = errno;
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
154 continue;
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
155 }
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
156
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
157 if (nonblocking) {
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
158 if (fcntl(sock, F_SETFL, O_NONBLOCK) < 0) {
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
159 close(sock);
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
160 sock = -1;
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
161 if (errstring != NULL && *errstring == NULL) {
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
162 *errstring = m_strdup("Failed non-blocking");
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
163 }
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
164 TRACE(("Failed non-blocking: %s", strerror(errno)));
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
165 continue;
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
166 }
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
167 }
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
168
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
169 if (connect(sock, res->ai_addr, res->ai_addrlen) < 0) {
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
170 if (errno == EINPROGRESS) {
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
171 TRACE(("Connect in progress"));
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
172 break;
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
173 } else {
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
174 err = errno;
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
175 close(sock);
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
176 sock = -1;
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
177 continue;
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
178 }
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
179 }
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
180
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
181 break; /* Success */
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
182 }
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
183
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
184 if (sock < 0) {
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
185 /* Failed */
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
186 if (errstring != NULL && *errstring == NULL) {
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
187 int len;
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
188 len = 20 + strlen(strerror(err));
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
189 *errstring = (char*)m_malloc(len);
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
190 snprintf(*errstring, len, "Error connecting: %s", strerror(err));
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
191 }
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
192 TRACE(("Error connecting: %s", strerror(err)));
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
193 } else {
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
194 /* Success */
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
195 /* (err is used as a dummy var here) */
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
196 setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, (void*)&err, sizeof(err));
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
197 }
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
198
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
199 freeaddrinfo(res0);
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
200
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
201 TRACE(("leave connect_remote: sock %d", sock));
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
202 return sock;
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
203 }
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
204
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
205 /* 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
206 * value is allocated with malloc() */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
207 unsigned char * getaddrstring(struct sockaddr * addr) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
208
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
209 char *retstring;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
210
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
211 /* space for "255.255.255.255:65535\0" = 22 */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
212 retstring = m_malloc(22);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
213
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
214 switch (addr->sa_family) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
215 case PF_INET:
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
216 snprintf(retstring, 22, "%s:%hu",
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
217 inet_ntoa(((struct sockaddr_in *)addr)->sin_addr),
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
218 ((struct sockaddr_in *)addr)->sin_port);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
219 break;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
220
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
221 default:
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
222 /* XXX ipv6 */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
223 strcpy(retstring, "Bad protocol");
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
224
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
225 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
226 return retstring;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
227
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
228 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
229
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
230 /* 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
231 * address is returned. The return value is allocated with strdup() */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
232 char* getaddrhostname(struct sockaddr * addr) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
233
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
234 struct hostent *host = NULL;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
235 char * retstring;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
236
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
237 #ifdef DO_HOST_LOOKUP
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
238 host = gethostbyaddr((char*)&((struct sockaddr_in*)addr)->sin_addr,
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
239 sizeof(struct in_addr), AF_INET);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
240 #endif
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
241
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
242 if (host == NULL) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
243 /* return the address */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
244 retstring = inet_ntoa(((struct sockaddr_in *)addr)->sin_addr);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
245 } else {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
246 /* return the hostname */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
247 retstring = host->h_name;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
248 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
249
11
f76c9389e9e0 Mostly done with the listener changeover
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
250 return m_strdup(retstring);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
251 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
252 #ifdef DEBUG_TRACE
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
253 void printhex(unsigned char* buf, int len) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
254
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
255 int i;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
256
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
257 for (i = 0; i < len; i++) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
258 fprintf(stderr, "%02x", buf[i]);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
259 if (i % 16 == 15) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
260 fprintf(stderr, "\n");
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
261 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
262 else if (i % 2 == 1) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
263 fprintf(stderr, " ");
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
264 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
265 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
266 fprintf(stderr, "\n");
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
267 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
268 #endif
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
269
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
270 /* 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
271 * for '\n', '\r' and '\t'.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
272 * 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
273 * use */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
274 char * stripcontrol(const char * text) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
275
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
276 char * ret;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
277 int len, pos;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
278 int i;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
279
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
280 len = strlen(text);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
281 ret = m_malloc(len+1);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
282
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
283 pos = 0;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
284 for (i = 0; i < len; i++) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
285 if ((text[i] <= '~' && text[i] >= ' ') /* normal printable range */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
286 || 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
287 ret[pos] = text[i];
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
288 pos++;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
289 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
290 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
291 ret[pos] = 0x0;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
292 return ret;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
293 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
294
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
295
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
296 /* 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
297 * 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
298 * Returns DROPBEAR_SUCCESS or DROPBEAR_FAILURE */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
299 int buf_readfile(buffer* buf, const char* filename) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
300
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
301 int fd;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
302 int len;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
303 int maxlen;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
304
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
305 fd = open(filename, O_RDONLY);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
306
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
307 if (fd < 0) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
308 close(fd);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
309 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
310 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
311
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
312 do {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
313 maxlen = buf->size - buf->pos;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
314 len = read(fd, buf_getwriteptr(buf, maxlen),
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
315 maxlen);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
316 buf_incrwritepos(buf, len);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
317 } while (len < maxlen && len > 0);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
318
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
319 close(fd);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
320 return DROPBEAR_SUCCESS;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
321 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
322
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
323 /* 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
324 * we get and error.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
325 * Returns DROPBEAR_SUCCESS or DROPBEAR_FAILURE */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
326 int m_close(int fd) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
327
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
328 int val;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
329 do {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
330 val = close(fd);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
331 } while (val < 0 && errno == EINTR);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
332
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
333 if (val == 0 || errno == EBADF) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
334 return DROPBEAR_SUCCESS;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
335 } else {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
336 return DROPBEAR_FAILURE;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
337 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
338 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
339
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
340 void * m_malloc(size_t size) {
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 void* ret;
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 if (size == 0) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
345 dropbear_exit("m_malloc failed");
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
346 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
347 ret = malloc(size);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
348 if (ret == NULL) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
349 dropbear_exit("m_malloc failed");
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
350 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
351 return ret;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
352
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
353 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
354
11
f76c9389e9e0 Mostly done with the listener changeover
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
355 void * m_strdup(const char * str) {
f76c9389e9e0 Mostly done with the listener changeover
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
356 char* ret;
f76c9389e9e0 Mostly done with the listener changeover
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
357
f76c9389e9e0 Mostly done with the listener changeover
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
358 ret = strdup(str);
f76c9389e9e0 Mostly done with the listener changeover
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
359 if (ret == NULL) {
f76c9389e9e0 Mostly done with the listener changeover
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
360 dropbear_exit("m_strdup failed");
f76c9389e9e0 Mostly done with the listener changeover
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
361 }
f76c9389e9e0 Mostly done with the listener changeover
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
362 return ret;
f76c9389e9e0 Mostly done with the listener changeover
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
363 }
f76c9389e9e0 Mostly done with the listener changeover
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
364
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
365 void __m_free(void* ptr) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
366 if (ptr != NULL) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
367 free(ptr);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
368 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
369 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
370
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
371 void * m_realloc(void* ptr, size_t size) {
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 void *ret;
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 if (size == 0) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
376 dropbear_exit("m_realloc failed");
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
377 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
378 ret = realloc(ptr, size);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
379 if (ret == NULL) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
380 dropbear_exit("m_realloc failed");
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
381 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
382 return ret;
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
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
385 /* 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
386 * "Secure Programming for Linux and Unix HOWTO" */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
387 void m_burn(void *data, unsigned int len) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
388 volatile char *p = data;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
389
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
390 if (data == NULL)
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
391 return;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
392 while (len--) {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
393 *p++ = 0x66;
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
394 }
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
395 }
26
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 11
diff changeset
396