* Copyright (c) 1980, 1987 Regents of the University of California.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* 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
"@(#) Copyright (c) 1980, 1987 Regents of the University of California.\n\
static char sccsid
[] = "@(#)users.c 5.12 (Berkeley) 11/1/90";
char names
[MAXUSERS
][UT_NAMESIZE
];
while ((ch
= getopt(argc
, argv
, "")) != EOF
)
(void)fprintf(stderr
, "usage: users\n");
if (!freopen(_PATH_UTMP
, "r", stdin
)) {
(void)fprintf(stderr
, "users: can't open %s.\n", _PATH_UTMP
);
fread((char *)&utmp
, sizeof(utmp
), 1, stdin
) == 1;)
"users: too many users.\n");
(void)strncpy(names
[ncnt
], utmp
.ut_name
, UT_NAMESIZE
);
qsort(names
, ncnt
, UT_NAMESIZE
, scmp
);
(void)printf("%.*s", UT_NAMESIZE
, names
[0]);
for (cnt
= 1; cnt
< ncnt
; ++cnt
)
if (strncmp(names
[cnt
], names
[cnt
- 1], UT_NAMESIZE
))
(void)printf(" %.*s", UT_NAMESIZE
, names
[cnt
]);
return(strncmp(p
, q
, UT_NAMESIZE
));