rosapps/net/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 #ifndef lint
  45 static char copyright[] =
  46 "@(#) Copyright (c) 1989, 1993\n\
  47         The Regents of the University of California.  All rights reserved.\n";
  48 #endif /* not lint */
  49
  50 #ifndef lint
  51 static char sccsid[] = "@(#)finger.c    8.5 (Berkeley) 5/4/95";
  52 #endif /* not lint */
  53
  54 /*
  55  * Finger prints out information about users.  It is not portable since
  56  * certain fields (e.g. the full user name, office, and phone numbers) are
  57  * extracted from the gecos field of the passwd file which other UNIXes
  58  * may not have or may use for other things.
  59  *
  60  * There are currently two output formats; the short format is one line
  61  * per user and displays login name, tty, login time, real name, idle time,
  62  * and office location/phone number.  The long format gives the same
  63  * information (in a more legible format) as well as home directory, shell,
  64  * mail info, and .plan/.project files.
  65  */
  66
  67 #include <winsock2.h>
  68 #include "err.h"
  69 #include <errno.h>
  70 #include <fcntl.h>
  71 #include <stdio.h>
  72 #include <stdlib.h>
  73 #include <string.h>
  74 #include <time.h>
  75 #include "unistd.h"
  76
  77 #include "various.h"
  78 #include "getopt.h"
  79
  80 char *__progname;
  81
  82 time_t now;
  83 int lflag, mflag, pplan, sflag;
  84
  85 static void userlist(int, char **);
  86 void usage();
  87 void netfinger(char *);
  88
  89 int
  90 main(int argc, char **argv)
  91 {
  92         int ch;
  93
  94         while ((ch = getopt(argc, argv, "lmps")) != EOF)
  95                 switch(ch) {
  96                 case 'l':
  97                         lflag = 1;              /* long format */
  98                         break;
  99                 case 'm':
 100                         mflag = 1;              /* force exact match of names */
 101                         break;
 102                 case 'p':
 103                         pplan = 1;              /* don't show .plan/.project */
 104                         break;
 105                 case 's':
 106                         sflag = 1;              /* short format */
 107                         break;
 108                 case '?':
 109                 default:
 110                         (void)fprintf(stderr,
 111                             "usage: finger [-lmps] login [...]\n");
 112                         exit(1);
 113                 }
 114         argc -= optind;
 115         argv += optind;
 116
 117         (void)time(&now);
 118         if (!*argv) {
 119                 usage();
 120         } else {
 121                 userlist(argc, argv);
 122                 /*
 123                  * Assign explicit "large" format if names given and -s not
 124                  * explicitly stated.  Force the -l AFTER we get names so any
 125                  * remote finger attempts specified won't be mishandled.
 126                  */
 127                 if (!sflag)
 128                         lflag = 1;      /* if -s not explicit, force -l */
 129         }
 130         return 0;
 131 }
 132
 133
 134 static void
 135 userlist(int argc, char **argv)
 136 {
 137         int *used;
 138         char **ap, **nargv, **np, **p;
 139         WORD wVersionRequested;
 140         WSADATA wsaData;
 141         int iErr;
 142
 143
 144         if ((nargv = malloc((argc+1) * sizeof(char *))) == NULL ||
 145             (used = calloc(argc, sizeof(int))) == NULL)
 146                 err(1, NULL);
 147
 148         /* Pull out all network requests into nargv. */
 149         for (ap = p = argv, np = nargv; *p; ++p)
 150                 if (index(*p, '@'))
 151                         *np++ = *p;
 152                 else
 153                         *ap++ = *p;
 154
 155         *np++ = NULL;
 156         *ap++ = NULL;
 157
 158         /* If there are local requests */
 159         if (*argv)
 160         {
 161                 fprintf(stderr, "Warning: Can't do local finger\n");
 162         }
 163
 164         /* Start winsock */
 165         wVersionRequested = MAKEWORD( 1, 1 );
 166         iErr = WSAStartup( wVersionRequested, &wsaData );
 167         if ( iErr != 0 )
 168         {
 169                 /* Tell the user that we couldn't find a usable */
 170                 /* WinSock DLL.                                  */
 171                 fprintf(stderr, "WSAStartup failed\n");
 172                 return;
 173         }
 174
 175         /* Handle network requests. */
 176         for (p = nargv; *p;)
 177                 netfinger(*p++);
 178
 179         /* Bring down winsock */
 180         WSACleanup();
 181         exit(0);
 182 }
 183
 184 void usage()
 185 {
 186         (void)fprintf(stderr,
 187                       "usage: finger [-lmps] login [...]\n");
 188         exit(1);
 189 }
 190