Code

sysdb: Connect to the server and issue a STARTUP command.
[sysdb.git] / src / client / sysdb.c
1 /*
2  * SysDB - src/client/sysdb.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 "client/sysdb.h"
33 #include "client/sock.h"
35 #if HAVE_LIBGEN_H
36 #       include <libgen.h>
37 #else /* HAVE_LIBGEN_H */
38 #       define basename(path) (path)
39 #endif /* ! HAVE_LIBGEN_H */
41 #include <sys/stat.h>
42 #include <fcntl.h>
44 #include <stdio.h>
45 #include <stdlib.h>
46 #include <string.h>
48 #include <unistd.h>
50 #include <sys/types.h>
52 #include <pwd.h>
54 #ifndef DEFAULT_SOCKET
55 #       define DEFAULT_SOCKET "unix:"LOCALSTATEDIR"/run/sysdbd.sock"
56 #endif
58 static void
59 exit_usage(char *name, int status)
60 {
61         printf(
62 "Usage: %s <options>\n"
64 "\nOptions:\n"
65 "  -h        display this help and exit\n"
66 "  -V        display the version number and copyright\n"
68 "\nSysDB client "SDB_CLIENT_VERSION_STRING SDB_CLIENT_VERSION_EXTRA", "
69 PACKAGE_URL"\n", basename(name));
70         exit(status);
71 } /* exit_usage */
73 static void
74 exit_version(void)
75 {
76         printf("SysDB version "SDB_CLIENT_VERSION_STRING
77                         SDB_CLIENT_VERSION_EXTRA", built "BUILD_DATE"\n"
78                         "using libsysdbclient version %s%s\n"
79                         "Copyright (C) 2012-2013 "PACKAGE_MAINTAINER"\n"
81                         "\nThis is free software under the terms of the BSD license, see "
82                         "the source for\ncopying conditions. There is NO WARRANTY; not "
83                         "even for MERCHANTABILITY or\nFITNESS FOR A PARTICULAR "
84                         "PURPOSE.\n", sdb_client_version_string(),
85                         sdb_client_version_extra());
86         exit(0);
87 } /* exit_version */
89 static const char *
90 get_current_user(void)
91 {
92         struct passwd pw_entry;
93         struct passwd *result = NULL;
95         uid_t uid;
97         /* needs to be static because we return a pointer into this buffer
98          * to the caller */
99         static char buf[1024];
101         int status;
103         uid = geteuid();
105         memset(&pw_entry, 0, sizeof(pw_entry));
106         status = getpwuid_r(uid, &pw_entry, buf, sizeof(buf), &result);
108         if (status || (! result)) {
109                 fprintf(stderr, "Failed to determine current username\n");
110                 return NULL;
111         }
112         return result->pw_name;
113 } /* get_current_user */
115 int
116 main(int argc, char **argv)
118         sdb_client_t *client;
120         const char *host = NULL;
121         const char *user = NULL;
123         while (42) {
124                 int opt = getopt(argc, argv, "H:U:hV");
126                 if (-1 == opt)
127                         break;
129                 switch (opt) {
130                         case 'H':
131                                 host = optarg;
132                                 break;
133                         case 'U':
134                                 user = optarg;
135                                 break;
137                         case 'h':
138                                 exit_usage(argv[0], 0);
139                                 break;
140                         case 'V':
141                                 exit_version();
142                                 break;
143                         default:
144                                 exit_usage(argv[0], 1);
145                 }
146         }
148         if (optind < argc)
149                 exit_usage(argv[0], 1);
151         if (! host)
152                 host = DEFAULT_SOCKET;
153         if (! user)
154                 user = get_current_user();
156         client = sdb_client_create(host);
157         if (! client) {
158                 fprintf(stderr, "Failed to create client object\n");
159                 exit(1);
160         }
161         if (sdb_client_connect(client, user)) {
162                 fprintf(stderr, "Failed to connect to SysDBd\n");
163                 sdb_client_destroy(client);
164                 exit(1);
165         }
167         printf("SysDB client "SDB_CLIENT_VERSION_STRING
168                         SDB_CLIENT_VERSION_EXTRA"\n");
170         sdb_client_destroy(client);
171         return 0;
172 } /* main */
174 /* vim: set tw=78 sw=4 ts=4 noexpandtab : */