82abc45a76a72dc55ac1e04184357c0a2b34ea5e
[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 "precomp.h"
58
59 char *__progname;
60
61 time_t now;
62 int lflag, mflag, pplan, sflag;
63
64 static void userlist(int, char **);
65 void usage();
66
67 int
68 main(int argc, char **argv)
69 {
70 int ch;
71
72 while ((ch = getopt(argc, argv, "lmps")) != EOF)
73 switch(ch) {
74 case 'l':
75 lflag = 1; /* long format */
76 break;
77 case 'm':
78 mflag = 1; /* force exact match of names */
79 break;
80 case 'p':
81 pplan = 1; /* don't show .plan/.project */
82 break;
83 case 's':
84 sflag = 1; /* short format */
85 break;
86 case '?':
87 default:
88 (void)fprintf(stderr,
89 "usage: finger [-lmps] login [...]\n");
90 exit(1);
91 }
92 argc -= optind;
93 argv += optind;
94
95 (void)time(&now);
96 if (!*argv) {
97 usage();
98 } else {
99 userlist(argc, argv);
100 /*
101 * Assign explicit "large" format if names given and -s not
102 * explicitly stated. Force the -l AFTER we get names so any
103 * remote finger attempts specified won't be mishandled.
104 */
105 if (!sflag)
106 lflag = 1; /* if -s not explicit, force -l */
107 }
108 return 0;
109 }
110
111
112 static void
113 userlist(int argc, char **argv)
114 {
115 int *used = NULL;
116 char **ap, **nargv, **np, **p;
117 WORD wVersionRequested;
118 WSADATA wsaData;
119 int iErr;
120
121
122 if ((nargv = (char**) malloc((argc+1) * sizeof(char *))) == NULL ||
123 (used = (int*) calloc(argc, sizeof(int))) == NULL)
124 err(1, NULL);
125
126 /* Pull out all network requests into nargv. */
127 for (ap = p = argv, np = nargv; *p; ++p)
128 if (index(*p, '@'))
129 *np++ = *p;
130 else
131 *ap++ = *p;
132
133 *np++ = NULL;
134 *ap++ = NULL;
135
136 /* If there are local requests */
137 if (*argv)
138 {
139 fprintf(stderr, "Warning: Can't do local finger\n");
140 }
141
142 /* Start winsock */
143 wVersionRequested = MAKEWORD( 1, 1 );
144 iErr = WSAStartup( wVersionRequested, &wsaData );
145 if ( iErr != 0 )
146 {
147 /* Tell the user that we couldn't find a usable */
148 /* WinSock DLL. */
149 fprintf(stderr, "WSAStartup failed\n");
150 return;
151 }
152
153 /* Handle network requests. */
154 for (p = nargv; *p;)
155 netfinger(*p++);
156
157 /* Bring down winsock */
158 WSACleanup();
159 free(nargv);
160 free(used);
161 exit(0);
162 }
163
164 void usage()
165 {
166 (void)fprintf(stderr,
167 "usage: finger [-lmps] login [...]\n");
168 exit(1);
169 }
170