ddb4bebaf1dfca86899be4c51fac3662fb02645a
[reactos.git] / base / applications / network / finger / finger.c
1 /*
2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Tony Nardo of the Johns Hopkins University/Applied Physics Lab.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 * 8/2/97 - Ted Felix <tfelix@fred.net>
37 * Ported to Win32 from 4.4BSD-LITE2 at wcarchive.
38 * NT Workstation already has finger, and it runs fine under
39 * Win95. Thought I'd do this anyways since not everyone has
40 * access to NT.
41 * Had to remove local handling. Otherwise, same as whois.
42 */
43
44 /*
45 * Finger prints out information about users. It is not portable since
46 * certain fields (e.g. the full user name, office, and phone numbers) are
47 * extracted from the gecos field of the passwd file which other UNIXes
48 * may not have or may use for other things.
49 *
50 * There are currently two output formats; the short format is one line
51 * per user and displays login name, tty, login time, real name, idle time,
52 * and office location/phone number. The long format gives the same
53 * information (in a more legible format) as well as home directory, shell,
54 * mail info, and .plan/.project files.
55 */
56
57 #include <winsock2.h>
58 #include "err.h"
59 #include <errno.h>
60 #include <fcntl.h>
61 #include <stdio.h>
62 #include <stdlib.h>
63 #include <string.h>
64 #include <time.h>
65
66 #include "various.h"
67 #include "getopt.h"
68
69 char *__progname;
70
71 time_t now;
72 int lflag, mflag, pplan, sflag;
73
74 static void userlist(int, char **);
75 void usage();
76
77 int
78 main(int argc, char **argv)
79 {
80 int ch;
81
82 while ((ch = getopt(argc, argv, "lmps")) != EOF)
83 switch(ch) {
84 case 'l':
85 lflag = 1; /* long format */
86 break;
87 case 'm':
88 mflag = 1; /* force exact match of names */
89 break;
90 case 'p':
91 pplan = 1; /* don't show .plan/.project */
92 break;
93 case 's':
94 sflag = 1; /* short format */
95 break;
96 case '?':
97 default:
98 (void)fprintf(stderr,
99 "usage: finger [-lmps] login [...]\n");
100 exit(1);
101 }
102 argc -= optind;
103 argv += optind;
104
105 (void)time(&now);
106 if (!*argv) {
107 usage();
108 } else {
109 userlist(argc, argv);
110 /*
111 * Assign explicit "large" format if names given and -s not
112 * explicitly stated. Force the -l AFTER we get names so any
113 * remote finger attempts specified won't be mishandled.
114 */
115 if (!sflag)
116 lflag = 1; /* if -s not explicit, force -l */
117 }
118 return 0;
119 }
120
121
122 static void
123 userlist(int argc, char **argv)
124 {
125 int *used = NULL;
126 char **ap, **nargv, **np, **p;
127 WORD wVersionRequested;
128 WSADATA wsaData;
129 int iErr;
130
131
132 if ((nargv = (char**) malloc((argc+1) * sizeof(char *))) == NULL ||
133 (used = (int*) calloc(argc, sizeof(int))) == NULL)
134 err(1, NULL);
135
136 /* Pull out all network requests into nargv. */
137 for (ap = p = argv, np = nargv; *p; ++p)
138 if (index(*p, '@'))
139 *np++ = *p;
140 else
141 *ap++ = *p;
142
143 *np++ = NULL;
144 *ap++ = NULL;
145
146 /* If there are local requests */
147 if (*argv)
148 {
149 fprintf(stderr, "Warning: Can't do local finger\n");
150 }
151
152 /* Start winsock */
153 wVersionRequested = MAKEWORD( 1, 1 );
154 iErr = WSAStartup( wVersionRequested, &wsaData );
155 if ( iErr != 0 )
156 {
157 /* Tell the user that we couldn't find a usable */
158 /* WinSock DLL. */
159 fprintf(stderr, "WSAStartup failed\n");
160 return;
161 }
162
163 /* Handle network requests. */
164 for (p = nargv; *p;)
165 netfinger(*p++);
166
167 /* Bring down winsock */
168 WSACleanup();
169 free(nargv);
170 free(used);
171 exit(0);
172 }
173
174 void usage()
175 {
176 (void)fprintf(stderr,
177 "usage: finger [-lmps] login [...]\n");
178 exit(1);
179 }
180