1 /*
2 * SysDB - src/tools/sysdb/main.c
3 * Copyright (C) 2013 Sebastian 'tokkee' Harl <sh@tokkee.org>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
17 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
19 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
28 #if HAVE_CONFIG_H
29 # include "config.h"
30 #endif /* HAVE_CONFIG_H */
32 #include "tools/sysdb/command.h"
33 #include "tools/sysdb/input.h"
35 #include "client/sysdb.h"
36 #include "client/sock.h"
37 #include "utils/error.h"
38 #include "utils/llist.h"
39 #include "utils/strbuf.h"
40 #include "utils/os.h"
42 #include <errno.h>
44 #if HAVE_LIBGEN_H
45 # include <libgen.h>
46 #else /* HAVE_LIBGEN_H */
47 # define basename(path) (path)
48 #endif /* ! HAVE_LIBGEN_H */
50 #include <sys/stat.h>
51 #include <fcntl.h>
53 #include <stdio.h>
54 #include <stdlib.h>
55 #include <string.h>
57 #include <unistd.h>
59 #include <sys/types.h>
61 #include <pwd.h>
63 #if HAVE_EDITLINE_READLINE_H
64 # include <editline/readline.h>
65 # if HAVE_EDITLINE_HISTORY_H
66 # include <editline/history.h>
67 # endif
68 #elif HAVE_READLINE_READLINE_H
69 # include <readline/readline.h>
70 # if HAVE_READLINE_HISTORY_H
71 # include <readline/history.h>
72 # endif
73 #elif HAVE_READLINE_H
74 # include <readline.h>
75 # if HAVE_HISTORY_H
76 # include <history.h>
77 # endif
78 #endif /* READLINEs */
80 #include <openssl/ssl.h>
81 #include <openssl/err.h>
83 #ifndef DEFAULT_SOCKET
84 # define DEFAULT_SOCKET "unix:"LOCALSTATEDIR"/run/sysdbd.sock"
85 #endif
88 static void
89 exit_usage(char *name, int status)
90 {
91 char *user = sdb_get_current_user();
92 printf(
93 "Usage: %s <options>\n"
95 "\nOptions:\n"
96 " -H HOST the host to connect to\n"
97 " default: "DEFAULT_SOCKET"\n"
98 " -U USER the username to connect as\n"
99 " default: %s\n"
100 " -c CMD execute the specified command and then exit\n"
101 "\n"
102 " -h display this help and exit\n"
103 " -V display the version number and copyright\n"
105 "\nSysDB client "SDB_CLIENT_VERSION_STRING SDB_CLIENT_VERSION_EXTRA", "
106 PACKAGE_URL"\n", basename(name), user);
107 free(user);
108 exit(status);
109 } /* exit_usage */
111 static void
112 exit_version(void)
113 {
114 printf("SysDB version "SDB_CLIENT_VERSION_STRING
115 SDB_CLIENT_VERSION_EXTRA", built "BUILD_DATE"\n"
116 "using libsysdbclient version %s%s\n"
117 "Copyright (C) 2012-2014 "PACKAGE_MAINTAINER"\n"
119 "\nThis is free software under the terms of the BSD license, see "
120 "the source for\ncopying conditions. There is NO WARRANTY; not "
121 "even for MERCHANTABILITY or\nFITNESS FOR A PARTICULAR "
122 "PURPOSE.\n", sdb_client_version_string(),
123 sdb_client_version_extra());
124 exit(0);
125 } /* exit_version */
127 static int
128 execute_commands(sdb_client_t *client, sdb_llist_t *commands)
129 {
130 sdb_llist_iter_t *iter;
131 int status = 0;
133 iter = sdb_llist_get_iter(commands);
134 if (! iter) {
135 sdb_log(SDB_LOG_ERR, "Failed to iterate commands");
136 return 1;
137 }
139 while (sdb_llist_iter_has_next(iter)) {
140 sdb_object_t *obj = sdb_llist_iter_get_next(iter);
142 if (sdb_client_send(client, SDB_CONNECTION_QUERY,
143 (uint32_t)strlen(obj->name), obj->name) <= 0) {
144 sdb_log(SDB_LOG_ERR, "Failed to send command '%s' to server",
145 obj->name);
146 status = 1;
147 break;
148 }
150 /* Wait for server replies. We might get any number of log messages
151 * but eventually see the reply to the query, which is either DATA or
152 * ERROR. */
153 while (42) {
154 status = sdb_command_print_reply(client);
155 if (status < 0) {
156 sdb_log(SDB_LOG_ERR, "Failed to read reply from server");
157 break;
158 }
160 if ((status == SDB_CONNECTION_DATA)
161 || (status == SDB_CONNECTION_ERROR))
162 break;
163 if (status == SDB_CONNECTION_OK) {
164 /* pre 0.4 versions used OK instead of DATA */
165 sdb_log(SDB_LOG_WARNING, "Received unexpected OK status from "
166 "server in response to a QUERY (expected DATA); "
167 "assuming we're talking to an old server");
168 break;
169 }
170 }
172 if ((status != SDB_CONNECTION_OK) && (status != SDB_CONNECTION_DATA))
173 break; /* error */
174 }
176 sdb_llist_iter_destroy(iter);
177 return status;
178 } /* execute_commands */
180 int
181 main(int argc, char **argv)
182 {
183 const char *host = NULL;
185 char *homedir;
186 char hist_file[1024] = "";
188 sdb_input_t input = SDB_INPUT_INIT;
189 sdb_llist_t *commands = NULL;
191 while (42) {
192 int opt = getopt(argc, argv, "H:U:c:hV");
194 if (-1 == opt)
195 break;
197 switch (opt) {
198 case 'H':
199 host = optarg;
200 break;
201 case 'U':
202 input.user = optarg;
203 break;
205 case 'c':
206 {
207 sdb_object_t *obj;
209 if (! commands)
210 commands = sdb_llist_create();
211 if (! commands) {
212 sdb_log(SDB_LOG_ERR, "Failed to create list object");
213 exit(1);
214 }
216 if (! (obj = sdb_object_create_T(optarg, sdb_object_t))) {
217 sdb_log(SDB_LOG_ERR, "Failed to create object");
218 exit(1);
219 }
220 if (sdb_llist_append(commands, obj)) {
221 sdb_log(SDB_LOG_ERR, "Failed to append command to list");
222 sdb_object_deref(obj);
223 exit(1);
224 }
225 sdb_object_deref(obj);
226 }
227 break;
229 case 'h':
230 exit_usage(argv[0], 0);
231 break;
232 case 'V':
233 exit_version();
234 break;
235 default:
236 exit_usage(argv[0], 1);
237 }
238 }
240 if (optind < argc)
241 exit_usage(argv[0], 1);
243 if (! host)
244 host = DEFAULT_SOCKET;
245 if (! input.user)
246 input.user = sdb_get_current_user();
247 else
248 input.user = strdup(input.user);
249 if (! input.user)
250 exit(1);
252 SSL_load_error_strings();
253 OpenSSL_add_ssl_algorithms();
255 input.client = sdb_client_create(host);
256 if (! input.client) {
257 sdb_log(SDB_LOG_ERR, "Failed to create client object");
258 free(input.user);
259 exit(1);
260 }
261 if (sdb_client_connect(input.client, input.user)) {
262 sdb_log(SDB_LOG_ERR, "Failed to connect to SysDBd");
263 sdb_client_destroy(input.client);
264 free(input.user);
265 exit(1);
266 }
268 if (commands) {
269 int status = execute_commands(input.client, commands);
270 sdb_llist_destroy(commands);
271 sdb_client_destroy(input.client);
272 free(input.user);
273 if ((status != SDB_CONNECTION_OK) && (status != SDB_CONNECTION_DATA))
274 exit(1);
275 exit(0);
276 }
278 sdb_log(SDB_LOG_INFO, "SysDB client "SDB_CLIENT_VERSION_STRING
279 SDB_CLIENT_VERSION_EXTRA" (libsysdbclient %s%s)\n",
280 sdb_client_version_string(), sdb_client_version_extra());
282 using_history();
284 if ((homedir = sdb_get_homedir())) {
285 snprintf(hist_file, sizeof(hist_file) - 1,
286 "%s/.sysdb_history", homedir);
287 hist_file[sizeof(hist_file) - 1] = '\0';
288 free(homedir);
289 homedir = NULL;
291 errno = 0;
292 if (read_history(hist_file) && (errno != ENOENT)) {
293 char errbuf[1024];
294 sdb_log(SDB_LOG_WARNING, "Failed to load history (%s): %s",
295 hist_file, sdb_strerror(errno, errbuf, sizeof(errbuf)));
296 }
297 }
298 free(input.user);
300 input.input = sdb_strbuf_create(2048);
301 sdb_input_init(&input);
302 sdb_input_mainloop();
304 sdb_client_shutdown(input.client, SHUT_WR);
305 while (! sdb_client_eof(input.client)) {
306 /* wait for remaining data to arrive */
307 sdb_command_print_reply(input.client);
308 }
310 if (hist_file[0] != '\0') {
311 errno = 0;
312 if (write_history(hist_file)) {
313 char errbuf[1024];
314 sdb_log(SDB_LOG_WARNING, "Failed to store history (%s): %s",
315 hist_file, sdb_strerror(errno, errbuf, sizeof(errbuf)));
316 }
317 }
319 sdb_client_destroy(input.client);
320 sdb_strbuf_destroy(input.input);
322 ERR_free_strings();
323 return 0;
324 } /* main */
326 /* vim: set tw=78 sw=4 ts=4 noexpandtab : */