reactos/base/applications/network/finger/finger.c

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/*
* Copyright (c) 1989, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Tony Nardo of the Johns Hopkins University/Applied Physics Lab.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* 8/2/97 - Ted Felix <tfelix@fred.net>
* Ported to Win32 from 4.4BSD-LITE2 at wcarchive.
* NT Workstation already has finger, and it runs fine under
* Win95. Thought I'd do this anyways since not everyone has
* access to NT.
* Had to remove local handling. Otherwise, same as whois.
*/
/*
* Finger prints out information about users. It is not portable since
* certain fields (e.g. the full user name, office, and phone numbers) are
* extracted from the gecos field of the passwd file which other UNIXes
* may not have or may use for other things.
*
* There are currently two output formats; the short format is one line
* per user and displays login name, tty, login time, real name, idle time,
* and office location/phone number. The long format gives the same
* information (in a more legible format) as well as home directory, shell,
* mail info, and .plan/.project files.
*/
#include "precomp.h"
#include <time.h>
#include "getopt.h"
char *__progname;
time_t now;
int lflag, mflag, pplan, sflag;
static void userlist(int, char **);
void usage();
int
main(int argc, char **argv)
{
int ch;
while ((ch = getopt(argc, argv, "lmps")) != EOF)
switch(ch) {
case 'l':
lflag = 1; /* long format */
break;
case 'm':
mflag = 1; /* force exact match of names */
break;
case 'p':
pplan = 1; /* don't show .plan/.project */
break;
case 's':
sflag = 1; /* short format */
break;
case '?':
default:
(void)fprintf(stderr,
"usage: finger [-lmps] login [...]\n");
exit(1);
}
argc -= optind;
argv += optind;
(void)time(&now);
if (!*argv) {
usage();
} else {
userlist(argc, argv);
/*
* Assign explicit "large" format if names given and -s not
* explicitly stated. Force the -l AFTER we get names so any
* remote finger attempts specified won't be mishandled.
*/
if (!sflag)
lflag = 1; /* if -s not explicit, force -l */
}
return 0;
}
static void
userlist(int argc, char **argv)
{
int *used = NULL;
char **ap, **nargv, **np, **p;
WORD wVersionRequested;
WSADATA wsaData;
int iErr;
if ((nargv = (char**) malloc((argc+1) * sizeof(char *))) == NULL ||
(used = (int*) calloc(argc, sizeof(int))) == NULL)
err(1, NULL);
/* Pull out all network requests into nargv. */
for (ap = p = argv, np = nargv; *p; ++p)
if (index(*p, '@'))
*np++ = *p;
else
*ap++ = *p;
*np++ = NULL;
*ap++ = NULL;
/* If there are local requests */
if (*argv)
{
fprintf(stderr, "Warning: Can't do local finger\n");
}
/* Start winsock */
wVersionRequested = MAKEWORD( 1, 1 );
iErr = WSAStartup( wVersionRequested, &wsaData );
if ( iErr != 0 )
{
/* Tell the user that we couldn't find a usable */
/* WinSock DLL. */
fprintf(stderr, "WSAStartup failed\n");
free(nargv);
free(used);
return;
}
/* Handle network requests. */
for (p = nargv; *p;)
netfinger(*p++);
/* Bring down winsock */
WSACleanup();
free(nargv);
free(used);
exit(0);
}
void usage()
{
(void)fprintf(stderr,
"usage: finger [-lmps] login [...]\n");
exit(1);
}