File: [local] / src / usr.bin / what / what.c (download)
Revision 1.15, Fri Oct 9 01:37:09 2015 UTC (8 years, 8 months ago) by deraadt
Branch: MAIN
CVS Tags: OPENBSD_6_6_BASE, OPENBSD_6_6, OPENBSD_6_5_BASE, OPENBSD_6_5, OPENBSD_6_4_BASE, OPENBSD_6_4, OPENBSD_6_3_BASE, OPENBSD_6_3, OPENBSD_6_2_BASE, OPENBSD_6_2, OPENBSD_6_1_BASE, OPENBSD_6_1, OPENBSD_6_0_BASE, OPENBSD_6_0, OPENBSD_5_9_BASE, OPENBSD_5_9 Changes since 1.14: +3 -3 lines
Change all tame callers to namechange to pledge(2).
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/* $OpenBSD: what.c,v 1.15 2015/10/09 01:37:09 deraadt Exp $ */
/* $NetBSD: what.c,v 1.4 1994/12/20 16:01:03 jtc Exp $ */
/*
* Copyright (c) 1980, 1988, 1993
* The Regents of the University of California. All rights reserved.
*
* 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. 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.
*/
#include <sys/types.h>
#include <sys/utsname.h>
#include <stdio.h>
#include <ctype.h>
#include <err.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
static void search(char *);
static void usage(void);
static int matches;
static int sflag;
extern char *__progname;
/*
* what
*/
/* ARGSUSED */
int
main(int argc, char *argv[])
{
struct utsname utsn;
char match[256];
int c;
if (pledge("stdio rpath", NULL) == -1)
err(1, "pledge");
matches = sflag = 0;
while ((c = getopt(argc, argv, "s")) != -1) {
switch (c) {
case 's':
sflag = 1;
break;
default:
usage();
}
}
argc -= optind;
argv += optind;
if (uname(&utsn) == -1)
err(1, "uname");
strlcpy(match, utsn.sysname, sizeof match);
if (argc < 1) {
usage();
} else do {
if (!freopen(*argv, "r", stdin)) {
perror(*argv);
exit(matches ? 0 : 1);
}
printf("%s\n", *argv);
search(match);
} while(*++argv);
exit(matches ? 0 : 1);
}
static void
search(char *match)
{
int c;
int i;
while ((c = getchar()) != EOF) {
loop: if (c == '$') {
for (i = 0; match[i]; i++)
if ((c = getchar()) != match[i])
goto loop;
printf("\t$%s", match);
while (isprint(c = getchar())) {
putchar(c);
if (c == '$')
break;
}
putchar('\n');
matches++;
if (sflag)
break;
goto loop;
}
if (c != '@')
continue;
if ((c = getchar()) != '(')
goto loop;
if ((c = getchar()) != '#')
goto loop;
if ((c = getchar()) != ')')
goto loop;
putchar('\t');
while ((c = getchar()) != EOF && c && c != '"' &&
c != '>' && c != '\n' && c != '\\')
putchar(c);
putchar('\n');
matches++;
if (sflag)
break;
}
}
static void
usage(void)
{
(void)fprintf(stderr, "usage: %s [-s] file ...\n", __progname);
exit(1);
}