/mandos/release

To get this branch, use:
bzr branch http://bzr.recompile.se/loggerhead/mandos/release
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
1
/*  -*- coding: utf-8 -*- */
2
/*
237.2.24 by Teddy Hogeborn
* plugins.d/askpass-fifo.c: Fix name in header.
3
 * Mandos-client - get and decrypt data from a Mandos server
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
4
 *
5
 * This program is partly derived from an example program for an Avahi
6
 * service browser, downloaded from
7
 * <http://avahi.org/browser/examples/core-browse-services.c>.  This
8
 * includes the following functions: "resolve_callback",
9
 * "browse_callback", and parts of "main".
10
 * 
28 by Teddy Hogeborn
* server.conf: New file.
11
 * Everything else is
237.2.9 by Teddy Hogeborn
* README: Update copyright year; add "2009".
12
 * Copyright © 2008,2009 Teddy Hogeborn
13
 * Copyright © 2008,2009 Björn Påhlsson
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
14
 * 
15
 * This program is free software: you can redistribute it and/or
16
 * modify it under the terms of the GNU General Public License as
17
 * published by the Free Software Foundation, either version 3 of the
18
 * License, or (at your option) any later version.
19
 * 
20
 * This program is distributed in the hope that it will be useful, but
21
 * WITHOUT ANY WARRANTY; without even the implied warranty of
22
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
23
 * General Public License for more details.
24
 * 
25
 * You should have received a copy of the GNU General Public License
26
 * along with this program.  If not, see
27
 * <http://www.gnu.org/licenses/>.
28
 * 
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
29
 * Contact the authors at <mandos@fukt.bsnet.se>.
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
30
 */
31
28 by Teddy Hogeborn
* server.conf: New file.
32
/* Needed by GPGME, specifically gpgme_data_seek() */
237.2.80 by Teddy Hogeborn
Use "getconf" to get correct LFS compile and link flags.
33
#ifndef _LARGEFILE_SOURCE
13 by Björn Påhlsson
Added following support:
34
#define _LARGEFILE_SOURCE
237.2.80 by Teddy Hogeborn
Use "getconf" to get correct LFS compile and link flags.
35
#endif
36
#ifndef _FILE_OFFSET_BITS
13 by Björn Påhlsson
Added following support:
37
#define _FILE_OFFSET_BITS 64
237.2.80 by Teddy Hogeborn
Use "getconf" to get correct LFS compile and link flags.
38
#endif
13 by Björn Påhlsson
Added following support:
39
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
40
#define _GNU_SOURCE		/* TEMP_FAILURE_RETRY(), asprintf() */
24.1.10 by Björn Påhlsson
merge commit
41
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
42
#include <stdio.h>		/* fprintf(), stderr, fwrite(),
237.2.74 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
43
				   stdout, ferror(), remove() */
24.1.26 by Björn Påhlsson
tally count of used symbols
44
#include <stdint.h> 		/* uint16_t, uint32_t */
45
#include <stddef.h>		/* NULL, size_t, ssize_t */
24.1.29 by Björn Påhlsson
Added more header file comments
46
#include <stdlib.h> 		/* free(), EXIT_SUCCESS, EXIT_FAILURE,
237.2.74 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
47
				   srand(), strtof() */
237.2.67 by Teddy Hogeborn
Four new interrelated features:
48
#include <stdbool.h>		/* bool, false, true */
24.1.29 by Björn Påhlsson
Added more header file comments
49
#include <string.h>		/* memset(), strcmp(), strlen(),
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
50
				   strerror(), asprintf(), strcpy() */
237.2.67 by Teddy Hogeborn
Four new interrelated features:
51
#include <sys/ioctl.h>		/* ioctl */
24.1.26 by Björn Påhlsson
tally count of used symbols
52
#include <sys/types.h>		/* socket(), inet_pton(), sockaddr,
24.1.29 by Björn Påhlsson
Added more header file comments
53
				   sockaddr_in6, PF_INET6,
237.2.67 by Teddy Hogeborn
Four new interrelated features:
54
				   SOCK_STREAM, uid_t, gid_t, open(),
55
				   opendir(), DIR */
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
56
#include <sys/stat.h>		/* open() */
24.1.26 by Björn Påhlsson
tally count of used symbols
57
#include <sys/socket.h>		/* socket(), struct sockaddr_in6,
237.2.67 by Teddy Hogeborn
Four new interrelated features:
58
				   inet_pton(), connect() */
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
59
#include <fcntl.h>		/* open() */
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
60
#include <dirent.h>		/* opendir(), struct dirent, readdir()
61
				 */
237.2.74 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
62
#include <inttypes.h>		/* PRIu16, PRIdMAX, intmax_t,
63
				   strtoimax() */
24.1.29 by Björn Påhlsson
Added more header file comments
64
#include <assert.h>		/* assert() */
65
#include <errno.h>		/* perror(), errno */
237.2.54 by Teddy Hogeborn
Merge from Björn:
66
#include <time.h>		/* nanosleep(), time() */
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
67
#include <net/if.h>		/* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
24.1.26 by Björn Påhlsson
tally count of used symbols
68
				   SIOCSIFFLAGS, if_indextoname(),
69
				   if_nametoindex(), IF_NAMESIZE */
237.2.67 by Teddy Hogeborn
Four new interrelated features:
70
#include <netinet/in.h>		/* IN6_IS_ADDR_LINKLOCAL,
71
				   INET_ADDRSTRLEN, INET6_ADDRSTRLEN
72
				*/
24.1.29 by Björn Påhlsson
Added more header file comments
73
#include <unistd.h>		/* close(), SEEK_SET, off_t, write(),
74
				   getuid(), getgid(), setuid(),
75
				   setgid() */
24.1.26 by Björn Påhlsson
tally count of used symbols
76
#include <arpa/inet.h>		/* inet_pton(), htons */
237.2.67 by Teddy Hogeborn
Four new interrelated features:
77
#include <iso646.h>		/* not, or, and */
24.1.29 by Björn Påhlsson
Added more header file comments
78
#include <argp.h>		/* struct argp_option, error_t, struct
79
				   argp_state, struct argp,
80
				   argp_parse(), ARGP_KEY_ARG,
81
				   ARGP_KEY_END, ARGP_ERR_UNKNOWN */
237.2.70 by Teddy Hogeborn
Merge from Björn:
82
#include <signal.h>		/* sigemptyset(), sigaddset(),
237.2.71 by Teddy Hogeborn
* plugin-runner.c: Comment change.
83
				   sigaction(), SIGTERM, sigaction,
84
				   sig_atomic_t */
237.2.70 by Teddy Hogeborn
Merge from Björn:
85
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
86
#ifdef __linux__
24.1.124 by Björn Påhlsson
Added lower kernel loglevel to reduce clutter on system console.
87
#include <sys/klog.h> 		/* klogctl() */
237.2.71 by Teddy Hogeborn
* plugin-runner.c: Comment change.
88
#endif	/* __linux__ */
24.1.26 by Björn Påhlsson
tally count of used symbols
89
90
/* Avahi */
24.1.29 by Björn Påhlsson
Added more header file comments
91
/* All Avahi types, constants and functions
92
 Avahi*, avahi_*,
93
 AVAHI_* */
94
#include <avahi-core/core.h>
24.1.26 by Björn Påhlsson
tally count of used symbols
95
#include <avahi-core/lookup.h>
24.1.29 by Björn Påhlsson
Added more header file comments
96
#include <avahi-core/log.h>
24.1.26 by Björn Påhlsson
tally count of used symbols
97
#include <avahi-common/simple-watch.h>
98
#include <avahi-common/malloc.h>
99
#include <avahi-common/error.h>
100
101
/* GnuTLS */
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
102
#include <gnutls/gnutls.h>	/* All GnuTLS types, constants and
103
				   functions:
24.1.29 by Björn Påhlsson
Added more header file comments
104
				   gnutls_*
24.1.26 by Björn Påhlsson
tally count of used symbols
105
				   init_gnutls_session(),
24.1.29 by Björn Påhlsson
Added more header file comments
106
				   GNUTLS_* */
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
107
#include <gnutls/openpgp.h>
108
			  /* gnutls_certificate_set_openpgp_key_file(),
24.1.29 by Björn Påhlsson
Added more header file comments
109
				   GNUTLS_OPENPGP_FMT_BASE64 */
24.1.26 by Björn Påhlsson
tally count of used symbols
110
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
111
/* GPGME */
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
112
#include <gpgme.h> 		/* All GPGME types, constants and
113
				   functions:
24.1.29 by Björn Påhlsson
Added more header file comments
114
				   gpgme_*
24.1.26 by Björn Påhlsson
tally count of used symbols
115
				   GPGME_PROTOCOL_OpenPGP,
24.1.29 by Björn Påhlsson
Added more header file comments
116
				   GPG_ERR_NO_* */
13 by Björn Påhlsson
Added following support:
117
118
#define BUFFER_SIZE 256
37 by Teddy Hogeborn
Non-tested commit for merge purposes.
119
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
120
#define PATHDIR "/conf/conf.d/mandos"
121
#define SECKEY "seckey.txt"
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
122
#define PUBKEY "pubkey.txt"
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
123
15.1.2 by Björn Påhlsson
Added debug options from passprompt as --debug and --debug=passprompt
124
bool debug = false;
43 by Teddy Hogeborn
* plugins.d/mandosclient.c: Cosmetic changes.
125
static const char mandos_protocol_version[] = "1";
217 by Teddy Hogeborn
* .bzrignore: Added "man" directory (created by "make install-html").
126
const char *argp_program_version = "mandos-client " VERSION;
24.1.14 by Björn Påhlsson
mandosclient
127
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
24.1.10 by Björn Påhlsson
merge commit
128
42 by Teddy Hogeborn
* plugins.d/mandosclient.c (start_mandos_communication): Change "to"
129
/* Used for passing in values through the Avahi callback functions */
13 by Björn Påhlsson
Added following support:
130
typedef struct {
24.1.9 by Björn Påhlsson
not working midwork...
131
  AvahiSimplePoll *simple_poll;
132
  AvahiServer *server;
13 by Björn Påhlsson
Added following support:
133
  gnutls_certificate_credentials_t cred;
24.1.9 by Björn Påhlsson
not working midwork...
134
  unsigned int dh_bits;
24.1.13 by Björn Påhlsson
mandosclient
135
  gnutls_dh_params_t dh_params;
24.1.9 by Björn Påhlsson
not working midwork...
136
  const char *priority;
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
137
  gpgme_ctx_t ctx;
24.1.9 by Björn Påhlsson
not working midwork...
138
} mandos_context;
13 by Björn Påhlsson
Added following support:
139
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
140
/* global context so signal handler can reach it*/
24.1.135 by Björn Påhlsson
Earlier signal handling
141
mandos_context mc = { .simple_poll = NULL, .server = NULL,
142
		      .dh_bits = 1024, .priority = "SECURE256"
143
		      ":!CTYPE-X.509:+CTYPE-OPENPGP" };
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
144
43 by Teddy Hogeborn
* plugins.d/mandosclient.c: Cosmetic changes.
145
/*
237.2.71 by Teddy Hogeborn
* plugin-runner.c: Comment change.
146
 * Make additional room in "buffer" for at least BUFFER_SIZE more
147
 * bytes. "buffer_capacity" is how much is currently allocated,
148
 * "buffer_length" is how much is already used.
43 by Teddy Hogeborn
* plugins.d/mandosclient.c: Cosmetic changes.
149
 */
24.1.132 by Björn Påhlsson
Fixed a bug in fallback handling
150
size_t incbuffer(char **buffer, size_t buffer_length,
24.1.10 by Björn Påhlsson
merge commit
151
		  size_t buffer_capacity){
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
152
  if(buffer_length + BUFFER_SIZE > buffer_capacity){
24.1.12 by Björn Påhlsson
merge +
153
    *buffer = realloc(*buffer, buffer_capacity + BUFFER_SIZE);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
154
    if(buffer == NULL){
24.1.10 by Björn Påhlsson
merge commit
155
      return 0;
156
    }
157
    buffer_capacity += BUFFER_SIZE;
158
  }
159
  return buffer_capacity;
160
}
161
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
162
/* 
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
163
 * Initialize GPGME.
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
164
 */
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
165
static bool init_gpgme(const char *seckey,
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
166
		       const char *pubkey, const char *tempdir){
167
  int ret;
13 by Björn Påhlsson
Added following support:
168
  gpgme_error_t rc;
169
  gpgme_engine_info_t engine_info;
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
170
  
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
171
  
172
  /*
237.2.51 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Use separate bool variable instead
173
   * Helper function to insert pub and seckey to the engine keyring.
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
174
   */
175
  bool import_key(const char *filename){
176
    int fd;
177
    gpgme_data_t pgp_data;
178
    
237.3.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
179
    fd = (int)TEMP_FAILURE_RETRY(open(filename, O_RDONLY));
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
180
    if(fd == -1){
181
      perror("open");
182
      return false;
183
    }
184
    
185
    rc = gpgme_data_new_from_fd(&pgp_data, fd);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
186
    if(rc != GPG_ERR_NO_ERROR){
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
187
      fprintf(stderr, "bad gpgme_data_new_from_fd: %s: %s\n",
188
	      gpgme_strsource(rc), gpgme_strerror(rc));
189
      return false;
190
    }
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
191
    
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
192
    rc = gpgme_op_import(mc.ctx, pgp_data);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
193
    if(rc != GPG_ERR_NO_ERROR){
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
194
      fprintf(stderr, "bad gpgme_op_import: %s: %s\n",
195
	      gpgme_strsource(rc), gpgme_strerror(rc));
196
      return false;
197
    }
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
198
    
237.3.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
199
    ret = (int)TEMP_FAILURE_RETRY(close(fd));
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
200
    if(ret == -1){
201
      perror("close");
202
    }
203
    gpgme_data_release(pgp_data);
204
    return true;
205
  }
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
206
  
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
207
  if(debug){
237.2.70 by Teddy Hogeborn
Merge from Björn:
208
    fprintf(stderr, "Initializing GPGME\n");
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
209
  }
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
210
  
13 by Björn Påhlsson
Added following support:
211
  /* Init GPGME */
212
  gpgme_check_version(NULL);
24.1.4 by Björn Påhlsson
Added optional parameters certdir, certkey and certfile that can be iven at start in the command line.
213
  rc = gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
214
  if(rc != GPG_ERR_NO_ERROR){
24.1.4 by Björn Påhlsson
Added optional parameters certdir, certkey and certfile that can be iven at start in the command line.
215
    fprintf(stderr, "bad gpgme_engine_check_version: %s: %s\n",
216
	    gpgme_strsource(rc), gpgme_strerror(rc));
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
217
    return false;
24.1.4 by Björn Påhlsson
Added optional parameters certdir, certkey and certfile that can be iven at start in the command line.
218
  }
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
219
  
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
220
    /* Set GPGME home directory for the OpenPGP engine only */
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
221
  rc = gpgme_get_engine_info(&engine_info);
222
  if(rc != GPG_ERR_NO_ERROR){
13 by Björn Påhlsson
Added following support:
223
    fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
224
	    gpgme_strsource(rc), gpgme_strerror(rc));
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
225
    return false;
13 by Björn Påhlsson
Added following support:
226
  }
227
  while(engine_info != NULL){
228
    if(engine_info->protocol == GPGME_PROTOCOL_OpenPGP){
229
      gpgme_set_engine_info(GPGME_PROTOCOL_OpenPGP,
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
230
			    engine_info->file_name, tempdir);
13 by Björn Påhlsson
Added following support:
231
      break;
232
    }
233
    engine_info = engine_info->next;
234
  }
235
  if(engine_info == NULL){
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
236
    fprintf(stderr, "Could not set GPGME home dir to %s\n", tempdir);
237
    return false;
238
  }
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
239
  
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
240
  /* Create new GPGME "context" */
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
241
  rc = gpgme_new(&(mc.ctx));
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
242
  if(rc != GPG_ERR_NO_ERROR){
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
243
    fprintf(stderr, "bad gpgme_new: %s: %s\n",
244
	    gpgme_strsource(rc), gpgme_strerror(rc));
245
    return false;
246
  }
247
  
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
248
  if(not import_key(pubkey) or not import_key(seckey)){
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
249
    return false;
250
  }
251
  
252
  return true; 
253
}
254
255
/* 
256
 * Decrypt OpenPGP data.
257
 * Returns -1 on error
258
 */
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
259
static ssize_t pgp_packet_decrypt(const char *cryptotext,
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
260
				  size_t crypto_size,
261
				  char **plaintext){
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
262
  gpgme_data_t dh_crypto, dh_plain;
263
  gpgme_error_t rc;
264
  ssize_t ret;
265
  size_t plaintext_capacity = 0;
266
  ssize_t plaintext_length = 0;
267
  
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
268
  if(debug){
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
269
    fprintf(stderr, "Trying to decrypt OpenPGP data\n");
13 by Björn Påhlsson
Added following support:
270
  }
271
  
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
272
  /* Create new GPGME data buffer from memory cryptotext */
273
  rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
274
			       0);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
275
  if(rc != GPG_ERR_NO_ERROR){
13 by Björn Påhlsson
Added following support:
276
    fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
277
	    gpgme_strsource(rc), gpgme_strerror(rc));
278
    return -1;
279
  }
280
  
281
  /* Create new empty GPGME data buffer for the plaintext */
282
  rc = gpgme_data_new(&dh_plain);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
283
  if(rc != GPG_ERR_NO_ERROR){
13 by Björn Påhlsson
Added following support:
284
    fprintf(stderr, "bad gpgme_data_new: %s: %s\n",
285
	    gpgme_strsource(rc), gpgme_strerror(rc));
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
286
    gpgme_data_release(dh_crypto);
13 by Björn Påhlsson
Added following support:
287
    return -1;
288
  }
289
  
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
290
  /* Decrypt data from the cryptotext data buffer to the plaintext
291
     data buffer */
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
292
  rc = gpgme_op_decrypt(mc.ctx, dh_crypto, dh_plain);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
293
  if(rc != GPG_ERR_NO_ERROR){
13 by Björn Påhlsson
Added following support:
294
    fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
295
	    gpgme_strsource(rc), gpgme_strerror(rc));
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
296
    plaintext_length = -1;
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
297
    if(debug){
99 by Teddy Hogeborn
* mandos (fingerprint): Bug fix: Check crtverify.value, not crtverify.
298
      gpgme_decrypt_result_t result;
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
299
      result = gpgme_op_decrypt_result(mc.ctx);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
300
      if(result == NULL){
99 by Teddy Hogeborn
* mandos (fingerprint): Bug fix: Check crtverify.value, not crtverify.
301
	fprintf(stderr, "gpgme_op_decrypt_result failed\n");
302
      } else {
303
	fprintf(stderr, "Unsupported algorithm: %s\n",
304
		result->unsupported_algorithm);
305
	fprintf(stderr, "Wrong key usage: %u\n",
306
		result->wrong_key_usage);
307
	if(result->file_name != NULL){
308
	  fprintf(stderr, "File name: %s\n", result->file_name);
309
	}
310
	gpgme_recipient_t recipient;
311
	recipient = result->recipients;
237.2.112 by Teddy Hogeborn
* plugins.d/mandos-client.c (pgp_packet_decrypt): Remove redundant
312
	while(recipient != NULL){
313
	  fprintf(stderr, "Public key algorithm: %s\n",
314
		  gpgme_pubkey_algo_name(recipient->pubkey_algo));
315
	  fprintf(stderr, "Key ID: %s\n", recipient->keyid);
316
	  fprintf(stderr, "Secret key available: %s\n",
317
		  recipient->status == GPG_ERR_NO_SECKEY
318
		  ? "No" : "Yes");
319
	  recipient = recipient->next;
99 by Teddy Hogeborn
* mandos (fingerprint): Bug fix: Check crtverify.value, not crtverify.
320
	}
321
      }
322
    }
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
323
    goto decrypt_end;
13 by Björn Påhlsson
Added following support:
324
  }
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
325
  
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
326
  if(debug){
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
327
    fprintf(stderr, "Decryption of OpenPGP data succeeded\n");
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
328
  }
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
329
  
13 by Björn Påhlsson
Added following support:
330
  /* Seek back to the beginning of the GPGME plaintext data buffer */
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
331
  if(gpgme_data_seek(dh_plain, (off_t)0, SEEK_SET) == -1){
24.1.92 by Björn Påhlsson
Several memory leaks detected by valgrind fixed
332
    perror("gpgme_data_seek");
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
333
    plaintext_length = -1;
334
    goto decrypt_end;
24.1.5 by Björn Påhlsson
plugbasedclient:
335
  }
336
  
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
337
  *plaintext = NULL;
13 by Björn Påhlsson
Added following support:
338
  while(true){
24.1.132 by Björn Påhlsson
Fixed a bug in fallback handling
339
    plaintext_capacity = incbuffer(plaintext,
42 by Teddy Hogeborn
* plugins.d/mandosclient.c (start_mandos_communication): Change "to"
340
				      (size_t)plaintext_length,
24.1.12 by Björn Påhlsson
merge +
341
				      plaintext_capacity);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
342
    if(plaintext_capacity == 0){
24.1.132 by Björn Påhlsson
Fixed a bug in fallback handling
343
	perror("incbuffer");
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
344
	plaintext_length = -1;
345
	goto decrypt_end;
13 by Björn Påhlsson
Added following support:
346
    }
347
    
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
348
    ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
349
			  BUFFER_SIZE);
13 by Björn Påhlsson
Added following support:
350
    /* Print the data, if any */
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
351
    if(ret == 0){
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
352
      /* EOF */
13 by Björn Påhlsson
Added following support:
353
      break;
354
    }
355
    if(ret < 0){
356
      perror("gpgme_data_read");
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
357
      plaintext_length = -1;
358
      goto decrypt_end;
13 by Björn Påhlsson
Added following support:
359
    }
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
360
    plaintext_length += ret;
13 by Björn Påhlsson
Added following support:
361
  }
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
362
  
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
363
  if(debug){
364
    fprintf(stderr, "Decrypted password is: ");
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
365
    for(ssize_t i = 0; i < plaintext_length; i++){
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
366
      fprintf(stderr, "%02hhX ", (*plaintext)[i]);
367
    }
368
    fprintf(stderr, "\n");
369
  }
370
  
371
 decrypt_end:
372
  
373
  /* Delete the GPGME cryptotext data buffer */
374
  gpgme_data_release(dh_crypto);
15.1.3 by Björn Påhlsson
Added getopt_long support for mandosclient and passprompt
375
  
376
  /* Delete the GPGME plaintext data buffer */
13 by Björn Påhlsson
Added following support:
377
  gpgme_data_release(dh_plain);
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
378
  return plaintext_length;
13 by Björn Påhlsson
Added following support:
379
}
380
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
381
static const char * safer_gnutls_strerror(int value){
237.2.30 by Teddy Hogeborn
* plugins.d/mandos-client.c: Only comment changes.
382
  const char *ret = gnutls_strerror(value); /* Spurious warning from
383
					       -Wunreachable-code */
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
384
  if(ret == NULL)
13 by Björn Påhlsson
Added following support:
385
    ret = "(unknown)";
386
  return ret;
387
}
388
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
389
/* GnuTLS log function callback */
36 by Teddy Hogeborn
* TODO: Converted to org-mode style
390
static void debuggnutls(__attribute__((unused)) int level,
391
			const char* string){
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
392
  fprintf(stderr, "GnuTLS: %s", string);
13 by Björn Påhlsson
Added following support:
393
}
394
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
395
static int init_gnutls_global(const char *pubkeyfilename,
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
396
			      const char *seckeyfilename){
13 by Björn Påhlsson
Added following support:
397
  int ret;
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
398
  
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
399
  if(debug){
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
400
    fprintf(stderr, "Initializing GnuTLS\n");
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
401
  }
24.1.29 by Björn Påhlsson
Added more header file comments
402
  
403
  ret = gnutls_global_init();
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
404
  if(ret != GNUTLS_E_SUCCESS){
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
405
    fprintf(stderr, "GnuTLS global_init: %s\n",
406
	    safer_gnutls_strerror(ret));
13 by Björn Påhlsson
Added following support:
407
    return -1;
408
  }
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
409
  
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
410
  if(debug){
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
411
    /* "Use a log level over 10 to enable all debugging options."
412
     * - GnuTLS manual
413
     */
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
414
    gnutls_global_set_log_level(11);
415
    gnutls_global_set_log_function(debuggnutls);
416
  }
417
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
418
  /* OpenPGP credentials */
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
419
  gnutls_certificate_allocate_credentials(&mc.cred);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
420
  if(ret != GNUTLS_E_SUCCESS){
237.2.30 by Teddy Hogeborn
* plugins.d/mandos-client.c: Only comment changes.
421
    fprintf(stderr, "GnuTLS memory error: %s\n", /* Spurious warning
237.2.67 by Teddy Hogeborn
Four new interrelated features:
422
						    from
423
						    -Wunreachable-code
424
						 */
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
425
	    safer_gnutls_strerror(ret));
426
    gnutls_global_deinit();
13 by Björn Påhlsson
Added following support:
427
    return -1;
428
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
429
  
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
430
  if(debug){
147 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Improved wording
431
    fprintf(stderr, "Attempting to use OpenPGP public key %s and"
432
	    " secret key %s as GnuTLS credentials\n", pubkeyfilename,
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
433
	    seckeyfilename);
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
434
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
435
  
13 by Björn Påhlsson
Added following support:
436
  ret = gnutls_certificate_set_openpgp_key_file
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
437
    (mc.cred, pubkeyfilename, seckeyfilename,
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
438
     GNUTLS_OPENPGP_FMT_BASE64);
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
439
  if(ret != GNUTLS_E_SUCCESS){
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
440
    fprintf(stderr,
441
	    "Error[%d] while reading the OpenPGP key pair ('%s',"
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
442
	    " '%s')\n", ret, pubkeyfilename, seckeyfilename);
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
443
    fprintf(stderr, "The GnuTLS error is: %s\n",
13 by Björn Påhlsson
Added following support:
444
	    safer_gnutls_strerror(ret));
24.1.20 by Björn Påhlsson
mandosclient
445
    goto globalfail;
13 by Björn Påhlsson
Added following support:
446
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
447
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
448
  /* GnuTLS server initialization */
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
449
  ret = gnutls_dh_params_init(&mc.dh_params);
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
450
  if(ret != GNUTLS_E_SUCCESS){
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
451
    fprintf(stderr, "Error in GnuTLS DH parameter initialization:"
452
	    " %s\n", safer_gnutls_strerror(ret));
24.1.20 by Björn Påhlsson
mandosclient
453
    goto globalfail;
13 by Björn Påhlsson
Added following support:
454
  }
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
455
  ret = gnutls_dh_params_generate2(mc.dh_params, mc.dh_bits);
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
456
  if(ret != GNUTLS_E_SUCCESS){
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
457
    fprintf(stderr, "Error in GnuTLS prime generation: %s\n",
458
	    safer_gnutls_strerror(ret));
24.1.20 by Björn Påhlsson
mandosclient
459
    goto globalfail;
13 by Björn Påhlsson
Added following support:
460
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
461
  
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
462
  gnutls_certificate_set_dh_params(mc.cred, mc.dh_params);
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
463
  
24.1.13 by Björn Påhlsson
mandosclient
464
  return 0;
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
465
  
24.1.20 by Björn Påhlsson
mandosclient
466
 globalfail:
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
467
  
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
468
  gnutls_certificate_free_credentials(mc.cred);
24.1.26 by Björn Påhlsson
tally count of used symbols
469
  gnutls_global_deinit();
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
470
  gnutls_dh_params_deinit(mc.dh_params);
24.1.20 by Björn Påhlsson
mandosclient
471
  return -1;
24.1.13 by Björn Påhlsson
mandosclient
472
}
473
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
474
static int init_gnutls_session(gnutls_session_t *session){
24.1.13 by Björn Påhlsson
mandosclient
475
  int ret;
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
476
  /* GnuTLS session creation */
477
  ret = gnutls_init(session, GNUTLS_SERVER);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
478
  if(ret != GNUTLS_E_SUCCESS){
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
479
    fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
13 by Björn Påhlsson
Added following support:
480
	    safer_gnutls_strerror(ret));
481
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
482
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
483
  {
484
    const char *err;
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
485
    ret = gnutls_priority_set_direct(*session, mc.priority, &err);
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
486
    if(ret != GNUTLS_E_SUCCESS){
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
487
      fprintf(stderr, "Syntax error at: %s\n", err);
488
      fprintf(stderr, "GnuTLS error: %s\n",
489
	      safer_gnutls_strerror(ret));
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
490
      gnutls_deinit(*session);
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
491
      return -1;
492
    }
13 by Björn Påhlsson
Added following support:
493
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
494
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
495
  ret = gnutls_credentials_set(*session, GNUTLS_CRD_CERTIFICATE,
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
496
			       mc.cred);
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
497
  if(ret != GNUTLS_E_SUCCESS){
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
498
    fprintf(stderr, "Error setting GnuTLS credentials: %s\n",
13 by Björn Påhlsson
Added following support:
499
	    safer_gnutls_strerror(ret));
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
500
    gnutls_deinit(*session);
13 by Björn Påhlsson
Added following support:
501
    return -1;
502
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
503
  
13 by Björn Påhlsson
Added following support:
504
  /* ignore client certificate if any. */
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
505
  gnutls_certificate_server_set_request(*session,
506
					GNUTLS_CERT_IGNORE);
13 by Björn Påhlsson
Added following support:
507
  
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
508
  gnutls_dh_set_prime_bits(*session, mc.dh_bits);
13 by Björn Påhlsson
Added following support:
509
  
510
  return 0;
511
}
512
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
513
/* Avahi log function callback */
36 by Teddy Hogeborn
* TODO: Converted to org-mode style
514
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
515
		      __attribute__((unused)) const char *txt){}
13 by Björn Påhlsson
Added following support:
516
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
517
/* Called when a Mandos server is found */
36 by Teddy Hogeborn
* TODO: Converted to org-mode style
518
static int start_mandos_communication(const char *ip, uint16_t port,
24.1.9 by Björn Påhlsson
not working midwork...
519
				      AvahiIfIndex if_index,
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
520
				      int af){
13 by Björn Påhlsson
Added following support:
521
  int ret, tcp_sd;
237.3.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
522
  ssize_t sret;
237.2.67 by Teddy Hogeborn
Four new interrelated features:
523
  union {
524
    struct sockaddr_in in;
525
    struct sockaddr_in6 in6;
526
  } to;
13 by Björn Påhlsson
Added following support:
527
  char *buffer = NULL;
528
  char *decrypted_buffer;
529
  size_t buffer_length = 0;
530
  size_t buffer_capacity = 0;
531
  ssize_t decrypted_buffer_size;
24.1.10 by Björn Påhlsson
merge commit
532
  size_t written;
13 by Björn Påhlsson
Added following support:
533
  int retval = 0;
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
534
  gnutls_session_t session;
237.2.67 by Teddy Hogeborn
Four new interrelated features:
535
  int pf;			/* Protocol family */
536
  
537
  switch(af){
538
  case AF_INET6:
539
    pf = PF_INET6;
540
    break;
541
  case AF_INET:
542
    pf = PF_INET;
543
    break;
544
  default:
545
    fprintf(stderr, "Bad address family: %d\n", af);
546
    return -1;
547
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
548
  
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
549
  ret = init_gnutls_session(&session);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
550
  if(ret != 0){
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
551
    return -1;
552
  }
553
  
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
554
  if(debug){
237.2.67 by Teddy Hogeborn
Four new interrelated features:
555
    fprintf(stderr, "Setting up a TCP connection to %s, port %" PRIu16
60 by Teddy Hogeborn
* mandos-client.c (main): Cast pid_t to unsigned int before printing.
556
	    "\n", ip, port);
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
557
  }
13 by Björn Påhlsson
Added following support:
558
  
237.2.67 by Teddy Hogeborn
Four new interrelated features:
559
  tcp_sd = socket(pf, SOCK_STREAM, 0);
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
560
  if(tcp_sd < 0){
13 by Björn Påhlsson
Added following support:
561
    perror("socket");
562
    return -1;
563
  }
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
564
  
84 by Teddy Hogeborn
* Makefile (DOCBOOKTOMAN): Use the local manpages/docbook.xsl file, do
565
  memset(&to, 0, sizeof(to));
237.2.67 by Teddy Hogeborn
Four new interrelated features:
566
  if(af == AF_INET6){
237.2.88 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): "sin6_family"
567
    to.in6.sin6_family = (sa_family_t)af;
237.2.67 by Teddy Hogeborn
Four new interrelated features:
568
    ret = inet_pton(af, ip, &to.in6.sin6_addr);
569
  } else {			/* IPv4 */
570
    to.in.sin_family = (sa_family_t)af;
571
    ret = inet_pton(af, ip, &to.in.sin_addr);
572
  }
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
573
  if(ret < 0 ){
13 by Björn Påhlsson
Added following support:
574
    perror("inet_pton");
575
    return -1;
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
576
  }
13 by Björn Påhlsson
Added following support:
577
  if(ret == 0){
578
    fprintf(stderr, "Bad address: %s\n", ip);
579
    return -1;
580
  }
237.2.67 by Teddy Hogeborn
Four new interrelated features:
581
  if(af == AF_INET6){
582
    to.in6.sin6_port = htons(port); /* Spurious warnings from
583
				       -Wconversion and
584
				       -Wunreachable-code */
585
    
586
    if(IN6_IS_ADDR_LINKLOCAL /* Spurious warnings from */
587
       (&to.in6.sin6_addr)){ /* -Wstrict-aliasing=2 or lower and
588
			      -Wunreachable-code*/
589
      if(if_index == AVAHI_IF_UNSPEC){
590
	fprintf(stderr, "An IPv6 link-local address is incomplete"
591
		" without a network interface\n");
592
	return -1;
593
      }
594
      /* Set the network interface number as scope */
595
      to.in6.sin6_scope_id = (uint32_t)if_index;
596
    }
597
  } else {
598
    to.in.sin_port = htons(port); /* Spurious warnings from
237.2.30 by Teddy Hogeborn
* plugins.d/mandos-client.c: Only comment changes.
599
				     -Wconversion and
600
				     -Wunreachable-code */
237.2.67 by Teddy Hogeborn
Four new interrelated features:
601
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
602
  
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
603
  if(debug){
237.2.67 by Teddy Hogeborn
Four new interrelated features:
604
    if(af == AF_INET6 and if_index != AVAHI_IF_UNSPEC){
605
      char interface[IF_NAMESIZE];
606
      if(if_indextoname((unsigned int)if_index, interface) == NULL){
607
	perror("if_indextoname");
608
      } else {
609
	fprintf(stderr, "Connection to: %s%%%s, port %" PRIu16 "\n",
610
		ip, interface, port);
611
      }
612
    } else {
613
      fprintf(stderr, "Connection to: %s, port %" PRIu16 "\n", ip,
614
	      port);
615
    }
616
    char addrstr[(INET_ADDRSTRLEN > INET6_ADDRSTRLEN) ?
617
		 INET_ADDRSTRLEN : INET6_ADDRSTRLEN] = "";
618
    const char *pcret;
619
    if(af == AF_INET6){
620
      pcret = inet_ntop(af, &(to.in6.sin6_addr), addrstr,
621
			sizeof(addrstr));
622
    } else {
623
      pcret = inet_ntop(af, &(to.in.sin_addr), addrstr,
624
			sizeof(addrstr));
625
    }
626
    if(pcret == NULL){
37 by Teddy Hogeborn
Non-tested commit for merge purposes.
627
      perror("inet_ntop");
628
    } else {
629
      if(strcmp(addrstr, ip) != 0){
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
630
	fprintf(stderr, "Canonical address form: %s\n", addrstr);
37 by Teddy Hogeborn
Non-tested commit for merge purposes.
631
      }
632
    }
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
633
  }
13 by Björn Påhlsson
Added following support:
634
  
237.2.67 by Teddy Hogeborn
Four new interrelated features:
635
  if(af == AF_INET6){
636
    ret = connect(tcp_sd, &to.in6, sizeof(to));
637
  } else {
638
    ret = connect(tcp_sd, &to.in, sizeof(to)); /* IPv4 */
639
  }
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
640
  if(ret < 0){
13 by Björn Påhlsson
Added following support:
641
    perror("connect");
642
    return -1;
643
  }
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
644
  
24.1.12 by Björn Påhlsson
merge +
645
  const char *out = mandos_protocol_version;
24.1.10 by Björn Påhlsson
merge commit
646
  written = 0;
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
647
  while(true){
24.1.10 by Björn Påhlsson
merge commit
648
    size_t out_size = strlen(out);
237.3.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
649
    ret = (int)TEMP_FAILURE_RETRY(write(tcp_sd, out + written,
24.1.10 by Björn Påhlsson
merge commit
650
				   out_size - written));
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
651
    if(ret == -1){
24.1.10 by Björn Påhlsson
merge commit
652
      perror("write");
653
      retval = -1;
24.1.12 by Björn Påhlsson
merge +
654
      goto mandos_end;
24.1.10 by Björn Påhlsson
merge commit
655
    }
24.1.12 by Björn Påhlsson
merge +
656
    written += (size_t)ret;
24.1.10 by Björn Påhlsson
merge commit
657
    if(written < out_size){
658
      continue;
659
    } else {
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
660
      if(out == mandos_protocol_version){
24.1.10 by Björn Påhlsson
merge commit
661
	written = 0;
662
	out = "\r\n";
663
      } else {
664
	break;
665
      }
666
    }
667
  }
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
668
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
669
  if(debug){
670
    fprintf(stderr, "Establishing TLS session with %s\n", ip);
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
671
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
672
  
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
673
  gnutls_transport_set_ptr(session, (gnutls_transport_ptr_t) tcp_sd);
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
674
  
24.1.29 by Björn Påhlsson
Added more header file comments
675
  do{
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
676
    ret = gnutls_handshake(session);
24.1.29 by Björn Påhlsson
Added more header file comments
677
  } while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
13 by Björn Påhlsson
Added following support:
678
  
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
679
  if(ret != GNUTLS_E_SUCCESS){
25 by Teddy Hogeborn
* mandos-clients.conf ([DEFAULT]): New section.
680
    if(debug){
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
681
      fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
682
      gnutls_perror(ret);
25 by Teddy Hogeborn
* mandos-clients.conf ([DEFAULT]): New section.
683
    }
13 by Björn Påhlsson
Added following support:
684
    retval = -1;
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
685
    goto mandos_end;
13 by Björn Påhlsson
Added following support:
686
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
687
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
688
  /* Read OpenPGP packet that contains the wanted password */
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
689
  
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
690
  if(debug){
237.2.67 by Teddy Hogeborn
Four new interrelated features:
691
    fprintf(stderr, "Retrieving OpenPGP encrypted password from %s\n",
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
692
	    ip);
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
693
  }
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
694
  
13 by Björn Påhlsson
Added following support:
695
  while(true){
24.1.132 by Björn Påhlsson
Fixed a bug in fallback handling
696
    buffer_capacity = incbuffer(&buffer, buffer_length,
42 by Teddy Hogeborn
* plugins.d/mandosclient.c (start_mandos_communication): Change "to"
697
				   buffer_capacity);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
698
    if(buffer_capacity == 0){
24.1.132 by Björn Påhlsson
Fixed a bug in fallback handling
699
      perror("incbuffer");
24.1.10 by Björn Påhlsson
merge commit
700
      retval = -1;
24.1.12 by Björn Påhlsson
merge +
701
      goto mandos_end;
13 by Björn Påhlsson
Added following support:
702
    }
703
    
237.3.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
704
    sret = gnutls_record_recv(session, buffer+buffer_length,
705
			      BUFFER_SIZE);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
706
    if(sret == 0){
13 by Björn Påhlsson
Added following support:
707
      break;
708
    }
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
709
    if(sret < 0){
237.3.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
710
      switch(sret){
13 by Björn Påhlsson
Added following support:
711
      case GNUTLS_E_INTERRUPTED:
712
      case GNUTLS_E_AGAIN:
713
	break;
714
      case GNUTLS_E_REHANDSHAKE:
24.1.29 by Björn Påhlsson
Added more header file comments
715
	do{
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
716
	  ret = gnutls_handshake(session);
24.1.29 by Björn Påhlsson
Added more header file comments
717
	} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
718
	if(ret < 0){
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
719
	  fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
720
	  gnutls_perror(ret);
13 by Björn Påhlsson
Added following support:
721
	  retval = -1;
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
722
	  goto mandos_end;
13 by Björn Påhlsson
Added following support:
723
	}
724
	break;
725
      default:
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
726
	fprintf(stderr, "Unknown error while reading data from"
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
727
		" encrypted session with Mandos server\n");
13 by Björn Påhlsson
Added following support:
728
	retval = -1;
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
729
	gnutls_bye(session, GNUTLS_SHUT_RDWR);
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
730
	goto mandos_end;
13 by Björn Påhlsson
Added following support:
731
      }
732
    } else {
237.3.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
733
      buffer_length += (size_t) sret;
13 by Björn Påhlsson
Added following support:
734
    }
735
  }
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
736
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
737
  if(debug){
738
    fprintf(stderr, "Closing TLS session\n");
739
  }
740
  
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
741
  gnutls_bye(session, GNUTLS_SHUT_RDWR);
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
742
  
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
743
  if(buffer_length > 0){
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
744
    decrypted_buffer_size = pgp_packet_decrypt(buffer,
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
745
					       buffer_length,
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
746
					       &decrypted_buffer);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
747
    if(decrypted_buffer_size >= 0){
24.1.10 by Björn Påhlsson
merge commit
748
      written = 0;
28 by Teddy Hogeborn
* server.conf: New file.
749
      while(written < (size_t) decrypted_buffer_size){
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
750
	ret = (int)fwrite(decrypted_buffer + written, 1,
751
			  (size_t)decrypted_buffer_size - written,
752
			  stdout);
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
753
	if(ret == 0 and ferror(stdout)){
754
	  if(debug){
755
	    fprintf(stderr, "Error writing encrypted data: %s\n",
756
		    strerror(errno));
757
	  }
758
	  retval = -1;
759
	  break;
760
	}
22 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Cast "0" argument to
761
	written += (size_t)ret;
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
762
      }
13 by Björn Påhlsson
Added following support:
763
      free(decrypted_buffer);
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
764
    } else {
765
      retval = -1;
13 by Björn Påhlsson
Added following support:
766
    }
24.1.63 by Björn Påhlsson
merge + fallback bugg
767
  } else {
768
    retval = -1;
13 by Björn Påhlsson
Added following support:
769
  }
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
770
  
771
  /* Shutdown procedure */
772
  
773
 mandos_end:
13 by Björn Påhlsson
Added following support:
774
  free(buffer);
237.3.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
775
  ret = (int)TEMP_FAILURE_RETRY(close(tcp_sd));
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
776
  if(ret == -1){
777
    perror("close");
778
  }
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
779
  gnutls_deinit(session);
13 by Björn Påhlsson
Added following support:
780
  return retval;
781
}
782
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
783
static void resolve_callback(AvahiSServiceResolver *r,
784
			     AvahiIfIndex interface,
237.2.67 by Teddy Hogeborn
Four new interrelated features:
785
			     AvahiProtocol proto,
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
786
			     AvahiResolverEvent event,
787
			     const char *name,
788
			     const char *type,
789
			     const char *domain,
790
			     const char *host_name,
791
			     const AvahiAddress *address,
792
			     uint16_t port,
793
			     AVAHI_GCC_UNUSED AvahiStringList *txt,
794
			     AVAHI_GCC_UNUSED AvahiLookupResultFlags
795
			     flags,
237.2.70 by Teddy Hogeborn
Merge from Björn:
796
			     AVAHI_GCC_UNUSED void* userdata){
84 by Teddy Hogeborn
* Makefile (DOCBOOKTOMAN): Use the local manpages/docbook.xsl file, do
797
  assert(r);
22 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Cast "0" argument to
798
  
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
799
  /* Called whenever a service has been resolved successfully or
800
     timed out */
22 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Cast "0" argument to
801
  
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
802
  switch(event){
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
803
  default:
804
  case AVAHI_RESOLVER_FAILURE:
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
805
    fprintf(stderr, "(Avahi Resolver) Failed to resolve service '%s'"
806
	    " of type '%s' in domain '%s': %s\n", name, type, domain,
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
807
	    avahi_strerror(avahi_server_errno(mc.server)));
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
808
    break;
22 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Cast "0" argument to
809
    
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
810
  case AVAHI_RESOLVER_FOUND:
811
    {
812
      char ip[AVAHI_ADDRESS_STR_MAX];
813
      avahi_address_snprint(ip, sizeof(ip), address);
814
      if(debug){
60 by Teddy Hogeborn
* mandos-client.c (main): Cast pid_t to unsigned int before printing.
815
	fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %"
237.2.31 by Teddy Hogeborn
Fixes for sscanf usage:
816
		PRIdMAX ") on port %" PRIu16 "\n", name, host_name,
817
		ip, (intmax_t)interface, port);
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
818
      }
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
819
      int ret = start_mandos_communication(ip, port, interface,
237.2.67 by Teddy Hogeborn
Four new interrelated features:
820
					   avahi_proto_to_af(proto));
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
821
      if(ret == 0){
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
822
	avahi_simple_poll_quit(mc.simple_poll);
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
823
      }
13 by Björn Påhlsson
Added following support:
824
    }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
825
  }
826
  avahi_s_service_resolver_free(r);
13 by Björn Påhlsson
Added following support:
827
}
828
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
829
static void browse_callback(AvahiSServiceBrowser *b,
830
			    AvahiIfIndex interface,
831
			    AvahiProtocol protocol,
832
			    AvahiBrowserEvent event,
833
			    const char *name,
834
			    const char *type,
835
			    const char *domain,
836
			    AVAHI_GCC_UNUSED AvahiLookupResultFlags
837
			    flags,
237.2.70 by Teddy Hogeborn
Merge from Björn:
838
			    AVAHI_GCC_UNUSED void* userdata){
84 by Teddy Hogeborn
* Makefile (DOCBOOKTOMAN): Use the local manpages/docbook.xsl file, do
839
  assert(b);
24.1.9 by Björn Påhlsson
not working midwork...
840
  
841
  /* Called whenever a new services becomes available on the LAN or
842
     is removed from the LAN */
843
  
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
844
  switch(event){
24.1.9 by Björn Påhlsson
not working midwork...
845
  default:
846
  case AVAHI_BROWSER_FAILURE:
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
847
    
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
848
    fprintf(stderr, "(Avahi browser) %s\n",
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
849
	    avahi_strerror(avahi_server_errno(mc.server)));
850
    avahi_simple_poll_quit(mc.simple_poll);
24.1.9 by Björn Påhlsson
not working midwork...
851
    return;
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
852
    
24.1.9 by Björn Påhlsson
not working midwork...
853
  case AVAHI_BROWSER_NEW:
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
854
    /* We ignore the returned Avahi resolver object. In the callback
855
       function we free it. If the Avahi server is terminated before
856
       the callback function is called the Avahi server will free the
857
       resolver for us. */
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
858
    
237.2.76 by Teddy Hogeborn
* plugins.d/mandos-client.c (browse_callback, main): Do not require
859
    if(avahi_s_service_resolver_new(mc.server, interface, protocol,
860
				    name, type, domain, protocol, 0,
861
				    resolve_callback, NULL) == NULL)
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
862
      fprintf(stderr, "Avahi: Failed to resolve service '%s': %s\n",
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
863
	      name, avahi_strerror(avahi_server_errno(mc.server)));
24.1.9 by Björn Påhlsson
not working midwork...
864
    break;
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
865
    
24.1.9 by Björn Påhlsson
not working midwork...
866
  case AVAHI_BROWSER_REMOVE:
867
    break;
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
868
    
24.1.9 by Björn Påhlsson
not working midwork...
869
  case AVAHI_BROWSER_ALL_FOR_NOW:
870
  case AVAHI_BROWSER_CACHE_EXHAUSTED:
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
871
    if(debug){
872
      fprintf(stderr, "No Mandos server found, still searching...\n");
873
    }
24.1.9 by Björn Påhlsson
not working midwork...
874
    break;
875
  }
13 by Björn Påhlsson
Added following support:
876
}
877
237.2.71 by Teddy Hogeborn
* plugin-runner.c: Comment change.
878
sig_atomic_t quit_now = 0;
879
24.1.135 by Björn Påhlsson
Earlier signal handling
880
/* stop main loop after sigterm has been called */
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
881
static void handle_sigterm(__attribute__((unused)) int sig){
237.2.71 by Teddy Hogeborn
* plugin-runner.c: Comment change.
882
  if(quit_now){
883
    return;
884
  }
885
  quit_now = 1;
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
886
  int old_errno = errno;
237.2.71 by Teddy Hogeborn
* plugin-runner.c: Comment change.
887
  if(mc.simple_poll != NULL){
888
    avahi_simple_poll_quit(mc.simple_poll);
889
  }
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
890
  errno = old_errno;
891
}
892
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
893
int main(int argc, char *argv[]){
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
894
  AvahiSServiceBrowser *sb = NULL;
895
  int error;
896
  int ret;
897
  intmax_t tmpmax;
237.2.74 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
898
  char *tmp;
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
899
  int exitcode = EXIT_SUCCESS;
900
  const char *interface = "eth0";
901
  struct ifreq network;
902
  int sd;
903
  uid_t uid;
904
  gid_t gid;
905
  char *connect_to = NULL;
906
  char tempdir[] = "/tmp/mandosXXXXXX";
907
  bool tempdir_created = false;
908
  AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
909
  const char *seckey = PATHDIR "/" SECKEY;
910
  const char *pubkey = PATHDIR "/" PUBKEY;
911
  
912
  bool gnutls_initialized = false;
913
  bool gpgme_initialized = false;
237.2.74 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
914
  float delay = 2.5f;
915
  
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
916
  struct sigaction old_sigterm_action;
917
  struct sigaction sigterm_action = { .sa_handler = handle_sigterm };
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
918
  
919
  {
920
    struct argp_option options[] = {
921
      { .name = "debug", .key = 128,
922
	.doc = "Debug mode", .group = 3 },
923
      { .name = "connect", .key = 'c',
924
	.arg = "ADDRESS:PORT",
925
	.doc = "Connect directly to a specific Mandos server",
926
	.group = 1 },
927
      { .name = "interface", .key = 'i',
928
	.arg = "NAME",
237.2.67 by Teddy Hogeborn
Four new interrelated features:
929
	.doc = "Network interface that will be used to search for"
930
	" Mandos servers",
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
931
	.group = 1 },
932
      { .name = "seckey", .key = 's',
933
	.arg = "FILE",
934
	.doc = "OpenPGP secret key file base name",
935
	.group = 1 },
936
      { .name = "pubkey", .key = 'p',
937
	.arg = "FILE",
938
	.doc = "OpenPGP public key file base name",
939
	.group = 2 },
940
      { .name = "dh-bits", .key = 129,
941
	.arg = "BITS",
942
	.doc = "Bit length of the prime number used in the"
943
	" Diffie-Hellman key exchange",
944
	.group = 2 },
945
      { .name = "priority", .key = 130,
946
	.arg = "STRING",
947
	.doc = "GnuTLS priority string for the TLS handshake",
948
	.group = 1 },
949
      { .name = "delay", .key = 131,
950
	.arg = "SECONDS",
951
	.doc = "Maximum delay to wait for interface startup",
952
	.group = 2 },
953
      { .name = NULL }
954
    };
955
    
956
    error_t parse_opt(int key, char *arg,
957
		      struct argp_state *state){
958
      switch(key){
959
      case 128:			/* --debug */
960
	debug = true;
961
	break;
962
      case 'c':			/* --connect */
963
	connect_to = arg;
964
	break;
965
      case 'i':			/* --interface */
966
	interface = arg;
967
	break;
968
      case 's':			/* --seckey */
969
	seckey = arg;
970
	break;
971
      case 'p':			/* --pubkey */
972
	pubkey = arg;
973
	break;
974
      case 129:			/* --dh-bits */
237.2.74 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
975
	errno = 0;
976
	tmpmax = strtoimax(arg, &tmp, 10);
977
	if(errno != 0 or tmp == arg or *tmp != '\0'
978
	   or tmpmax != (typeof(mc.dh_bits))tmpmax){
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
979
	  fprintf(stderr, "Bad number of DH bits\n");
980
	  exit(EXIT_FAILURE);
981
	}
982
	mc.dh_bits = (typeof(mc.dh_bits))tmpmax;
983
	break;
984
      case 130:			/* --priority */
985
	mc.priority = arg;
986
	break;
987
      case 131:			/* --delay */
237.2.74 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
988
	errno = 0;
989
	delay = strtof(arg, &tmp);
990
	if(errno != 0 or tmp == arg or *tmp != '\0'){
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
991
	  fprintf(stderr, "Bad delay\n");
992
	  exit(EXIT_FAILURE);
993
	}
994
	break;
995
      case ARGP_KEY_ARG:
996
	argp_usage(state);
997
      case ARGP_KEY_END:
998
	break;
999
      default:
1000
	return ARGP_ERR_UNKNOWN;
1001
      }
1002
      return 0;
1003
    }
1004
    
1005
    struct argp argp = { .options = options, .parser = parse_opt,
1006
			 .args_doc = "",
1007
			 .doc = "Mandos client -- Get and decrypt"
1008
			 " passwords from a Mandos server" };
1009
    ret = argp_parse(&argp, argc, argv, 0, 0, NULL);
1010
    if(ret == ARGP_ERR_UNKNOWN){
1011
      fprintf(stderr, "Unknown error while parsing arguments\n");
1012
      exitcode = EXIT_FAILURE;
1013
      goto end;
1014
    }
1015
  }
1016
  
24.1.135 by Björn Påhlsson
Earlier signal handling
1017
  if(not debug){
1018
    avahi_set_log_function(empty_log);
1019
  }
237.2.72 by Teddy Hogeborn
Merge from Björn:
1020
  
24.1.135 by Björn Påhlsson
Earlier signal handling
1021
  /* Initialize Avahi early so avahi_simple_poll_quit() can be called
1022
     from the signal handler */
1023
  /* Initialize the pseudo-RNG for Avahi */
1024
  srand((unsigned int) time(NULL));
1025
  mc.simple_poll = avahi_simple_poll_new();
1026
  if(mc.simple_poll == NULL){
1027
    fprintf(stderr, "Avahi: Failed to create simple poll object.\n");
1028
    exitcode = EXIT_FAILURE;
1029
    goto end;
1030
  }
237.2.72 by Teddy Hogeborn
Merge from Björn:
1031
  
24.1.135 by Björn Påhlsson
Earlier signal handling
1032
  sigemptyset(&sigterm_action.sa_mask);
237.2.72 by Teddy Hogeborn
Merge from Björn:
1033
  ret = sigaddset(&sigterm_action.sa_mask, SIGINT);
1034
  if(ret == -1){
1035
    perror("sigaddset");
1036
    exitcode = EXIT_FAILURE;
1037
    goto end;
1038
  }
1039
  ret = sigaddset(&sigterm_action.sa_mask, SIGHUP);
1040
  if(ret == -1){
1041
    perror("sigaddset");
1042
    exitcode = EXIT_FAILURE;
1043
    goto end;
1044
  }
24.1.135 by Björn Påhlsson
Earlier signal handling
1045
  ret = sigaddset(&sigterm_action.sa_mask, SIGTERM);
1046
  if(ret == -1){
1047
    perror("sigaddset");
1048
    exitcode = EXIT_FAILURE;
1049
    goto end;
1050
  }
1051
  ret = sigaction(SIGTERM, &sigterm_action, &old_sigterm_action);
1052
  if(ret == -1){
1053
    perror("sigaction");
1054
    exitcode = EXIT_FAILURE;
1055
    goto end;
1056
  }  
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1057
  
1058
  /* If the interface is down, bring it up */
237.2.67 by Teddy Hogeborn
Four new interrelated features:
1059
  if(interface[0] != '\0'){
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1060
#ifdef __linux__
1061
    /* Lower kernel loglevel to KERN_NOTICE to avoid KERN_INFO
1062
       messages to mess up the prompt */
1063
    ret = klogctl(8, NULL, 5);
237.2.67 by Teddy Hogeborn
Four new interrelated features:
1064
    bool restore_loglevel = true;
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1065
    if(ret == -1){
237.2.67 by Teddy Hogeborn
Four new interrelated features:
1066
      restore_loglevel = false;
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1067
      perror("klogctl");
1068
    }
237.2.71 by Teddy Hogeborn
* plugin-runner.c: Comment change.
1069
#endif	/* __linux__ */
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1070
    
1071
    sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
1072
    if(sd < 0){
1073
      perror("socket");
1074
      exitcode = EXIT_FAILURE;
1075
#ifdef __linux__
237.2.67 by Teddy Hogeborn
Four new interrelated features:
1076
      if(restore_loglevel){
1077
	ret = klogctl(7, NULL, 0);
1078
	if(ret == -1){
1079
	  perror("klogctl");
1080
	}
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1081
      }
237.2.71 by Teddy Hogeborn
* plugin-runner.c: Comment change.
1082
#endif	/* __linux__ */
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1083
      goto end;
1084
    }
1085
    strcpy(network.ifr_name, interface);
1086
    ret = ioctl(sd, SIOCGIFFLAGS, &network);
1087
    if(ret == -1){
1088
      perror("ioctl SIOCGIFFLAGS");
1089
#ifdef __linux__
237.2.67 by Teddy Hogeborn
Four new interrelated features:
1090
      if(restore_loglevel){
1091
	ret = klogctl(7, NULL, 0);
1092
	if(ret == -1){
1093
	  perror("klogctl");
1094
	}
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1095
      }
237.2.71 by Teddy Hogeborn
* plugin-runner.c: Comment change.
1096
#endif	/* __linux__ */
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1097
      exitcode = EXIT_FAILURE;
1098
      goto end;
1099
    }
1100
    if((network.ifr_flags & IFF_UP) == 0){
1101
      network.ifr_flags |= IFF_UP;
1102
      ret = ioctl(sd, SIOCSIFFLAGS, &network);
1103
      if(ret == -1){
1104
	perror("ioctl SIOCSIFFLAGS");
1105
	exitcode = EXIT_FAILURE;
1106
#ifdef __linux__
237.2.67 by Teddy Hogeborn
Four new interrelated features:
1107
	if(restore_loglevel){
1108
	  ret = klogctl(7, NULL, 0);
1109
	  if(ret == -1){
1110
	    perror("klogctl");
1111
	  }
24.1.124 by Björn Påhlsson
Added lower kernel loglevel to reduce clutter on system console.
1112
	}
237.2.71 by Teddy Hogeborn
* plugin-runner.c: Comment change.
1113
#endif	/* __linux__ */
65 by Teddy Hogeborn
* plugins.d/password-request.c (main): Bug fix: Bring up network
1114
	goto end;
1115
      }
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1116
    }
1117
    /* sleep checking until interface is running */
1118
    for(int i=0; i < delay * 4; i++){
65 by Teddy Hogeborn
* plugins.d/password-request.c (main): Bug fix: Bring up network
1119
      ret = ioctl(sd, SIOCGIFFLAGS, &network);
1120
      if(ret == -1){
1121
	perror("ioctl SIOCGIFFLAGS");
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1122
      } else if(network.ifr_flags & IFF_RUNNING){
1123
	break;
1124
      }
1125
      struct timespec sleeptime = { .tv_nsec = 250000000 };
1126
      ret = nanosleep(&sleeptime, NULL);
1127
      if(ret == -1 and errno != EINTR){
1128
	perror("nanosleep");
1129
      }
1130
    }
1131
    ret = (int)TEMP_FAILURE_RETRY(close(sd));
1132
    if(ret == -1){
1133
      perror("close");
1134
    }
1135
#ifdef __linux__
237.2.67 by Teddy Hogeborn
Four new interrelated features:
1136
    if(restore_loglevel){
1137
      /* Restores kernel loglevel to default */
1138
      ret = klogctl(7, NULL, 0);
1139
      if(ret == -1){
1140
	perror("klogctl");
1141
      }
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1142
    }
237.2.71 by Teddy Hogeborn
* plugin-runner.c: Comment change.
1143
#endif	/* __linux__ */
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1144
  }
1145
  
1146
  uid = getuid();
1147
  gid = getgid();
1148
  
237.2.67 by Teddy Hogeborn
Four new interrelated features:
1149
  errno = 0;
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1150
  setgid(gid);
1151
  if(ret == -1){
1152
    perror("setgid");
1153
  }
1154
  
1155
  ret = setuid(uid);
1156
  if(ret == -1){
1157
    perror("setuid");
1158
  }
1159
  
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
1160
  ret = init_gnutls_global(pubkey, seckey);
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1161
  if(ret == -1){
1162
    fprintf(stderr, "init_gnutls_global failed\n");
1163
    exitcode = EXIT_FAILURE;
1164
    goto end;
1165
  } else {
1166
    gnutls_initialized = true;
1167
  }
1168
  
1169
  if(mkdtemp(tempdir) == NULL){
1170
    perror("mkdtemp");
1171
    goto end;
1172
  }
1173
  tempdir_created = true;
1174
  
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
1175
  if(not init_gpgme(pubkey, seckey, tempdir)){
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1176
    fprintf(stderr, "init_gpgme failed\n");
1177
    exitcode = EXIT_FAILURE;
1178
    goto end;
1179
  } else {
1180
    gpgme_initialized = true;
1181
  }
1182
  
237.2.67 by Teddy Hogeborn
Four new interrelated features:
1183
  if(interface[0] != '\0'){
1184
    if_index = (AvahiIfIndex) if_nametoindex(interface);
1185
    if(if_index == 0){
1186
      fprintf(stderr, "No such interface: \"%s\"\n", interface);
1187
      exitcode = EXIT_FAILURE;
1188
      goto end;
1189
    }
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1190
  }
1191
  
1192
  if(connect_to != NULL){
1193
    /* Connect directly, do not use Zeroconf */
1194
    /* (Mainly meant for debugging) */
1195
    char *address = strrchr(connect_to, ':');
1196
    if(address == NULL){
1197
      fprintf(stderr, "No colon in address\n");
1198
      exitcode = EXIT_FAILURE;
1199
      goto end;
1200
    }
1201
    uint16_t port;
237.2.74 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
1202
    errno = 0;
1203
    tmpmax = strtoimax(address+1, &tmp, 10);
1204
    if(errno != 0 or tmp == address+1 or *tmp != '\0'
1205
       or tmpmax != (uint16_t)tmpmax){
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1206
      fprintf(stderr, "Bad port number\n");
1207
      exitcode = EXIT_FAILURE;
1208
      goto end;
1209
    }
1210
    port = (uint16_t)tmpmax;
1211
    *address = '\0';
1212
    address = connect_to;
237.2.67 by Teddy Hogeborn
Four new interrelated features:
1213
    /* Colon in address indicates IPv6 */
1214
    int af;
1215
    if(strchr(address, ':') != NULL){
1216
      af = AF_INET6;
1217
    } else {
1218
      af = AF_INET;
1219
    }
237.2.70 by Teddy Hogeborn
Merge from Björn:
1220
    ret = start_mandos_communication(address, port, if_index, af);
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1221
    if(ret < 0){
1222
      exitcode = EXIT_FAILURE;
1223
    } else {
1224
      exitcode = EXIT_SUCCESS;
1225
    }
1226
    goto end;
1227
  }
24.1.135 by Björn Påhlsson
Earlier signal handling
1228
    
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1229
  {
1230
    AvahiServerConfig config;
1231
    /* Do not publish any local Zeroconf records */
1232
    avahi_server_config_init(&config);
1233
    config.publish_hinfo = 0;
1234
    config.publish_addresses = 0;
1235
    config.publish_workstation = 0;
1236
    config.publish_domain = 0;
1237
    
1238
    /* Allocate a new server */
1239
    mc.server = avahi_server_new(avahi_simple_poll_get
1240
				 (mc.simple_poll), &config, NULL,
1241
				 NULL, &error);
1242
    
1243
    /* Free the Avahi configuration data */
1244
    avahi_server_config_free(&config);
1245
  }
1246
  
1247
  /* Check if creating the Avahi server object succeeded */
1248
  if(mc.server == NULL){
1249
    fprintf(stderr, "Failed to create Avahi server: %s\n",
1250
	    avahi_strerror(error));
1251
    exitcode = EXIT_FAILURE;
1252
    goto end;
1253
  }
1254
  
1255
  /* Create the Avahi service browser */
1256
  sb = avahi_s_service_browser_new(mc.server, if_index,
237.2.76 by Teddy Hogeborn
* plugins.d/mandos-client.c (browse_callback, main): Do not require
1257
				   AVAHI_PROTO_UNSPEC, "_mandos._tcp",
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
1258
				   NULL, 0, browse_callback, NULL);
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1259
  if(sb == NULL){
1260
    fprintf(stderr, "Failed to create service browser: %s\n",
1261
	    avahi_strerror(avahi_server_errno(mc.server)));
1262
    exitcode = EXIT_FAILURE;
1263
    goto end;
1264
  }
237.2.70 by Teddy Hogeborn
Merge from Björn:
1265
  
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1266
  /* Run the main loop */
1267
  
1268
  if(debug){
1269
    fprintf(stderr, "Starting Avahi loop search\n");
1270
  }
1271
  
1272
  avahi_simple_poll_loop(mc.simple_poll);
1273
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
1274
 end:
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1275
  
1276
  if(debug){
1277
    fprintf(stderr, "%s exiting\n", argv[0]);
1278
  }
1279
  
1280
  /* Cleanup things */
1281
  if(sb != NULL)
1282
    avahi_s_service_browser_free(sb);
1283
  
1284
  if(mc.server != NULL)
1285
    avahi_server_free(mc.server);
1286
  
1287
  if(mc.simple_poll != NULL)
1288
    avahi_simple_poll_free(mc.simple_poll);
1289
  
1290
  if(gnutls_initialized){
1291
    gnutls_certificate_free_credentials(mc.cred);
1292
    gnutls_global_deinit();
1293
    gnutls_dh_params_deinit(mc.dh_params);
1294
  }
1295
  
1296
  if(gpgme_initialized){
1297
    gpgme_release(mc.ctx);
1298
  }
1299
  
1300
  /* Removes the temp directory used by GPGME */
1301
  if(tempdir_created){
1302
    DIR *d;
1303
    struct dirent *direntry;
1304
    d = opendir(tempdir);
1305
    if(d == NULL){
1306
      if(errno != ENOENT){
1307
	perror("opendir");
1308
      }
1309
    } else {
1310
      while(true){
1311
	direntry = readdir(d);
1312
	if(direntry == NULL){
1313
	  break;
1314
	}
1315
	/* Skip "." and ".." */
1316
	if(direntry->d_name[0] == '.'
1317
	   and (direntry->d_name[1] == '\0'
1318
		or (direntry->d_name[1] == '.'
1319
		    and direntry->d_name[2] == '\0'))){
1320
	  continue;
1321
	}
1322
	char *fullname = NULL;
1323
	ret = asprintf(&fullname, "%s/%s", tempdir,
1324
		       direntry->d_name);
1325
	if(ret < 0){
1326
	  perror("asprintf");
1327
	  continue;
1328
	}
1329
	ret = remove(fullname);
1330
	if(ret == -1){
1331
	  fprintf(stderr, "remove(\"%s\"): %s\n", fullname,
1332
		  strerror(errno));
1333
	}
1334
	free(fullname);
1335
      }
1336
      closedir(d);
1337
    }
1338
    ret = rmdir(tempdir);
1339
    if(ret == -1 and errno != ENOENT){
1340
      perror("rmdir");
1341
    }
1342
  }
1343
  
1344
  return exitcode;
13 by Björn Påhlsson
Added following support:
1345
}