1879eba7ea
Implement -s option
Keep going if a file is not found
Append ':' to printed filenames
Include backslash in terminal characters
Make exit status dependent on a match having been found
Revise manpage accordingly
117 lines
3.2 KiB
C
117 lines
3.2 KiB
C
/*
|
|
* 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. 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.
|
|
*/
|
|
|
|
#ifndef lint
|
|
static const char copyright[] =
|
|
"@(#) Copyright (c) 1980, 1988, 1993\n\
|
|
The Regents of the University of California. All rights reserved.\n";
|
|
#endif /* not lint */
|
|
|
|
#ifndef lint
|
|
#if 0
|
|
static char sccsid[] = "@(#)what.c 8.1 (Berkeley) 6/6/93";
|
|
#endif
|
|
static const char rcsid[] =
|
|
"$Id: what.c,v 1.3 1997/08/25 06:49:45 charnier Exp $";
|
|
#endif /* not lint */
|
|
|
|
#include <err.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
|
|
static int sflag;
|
|
static int found;
|
|
|
|
void search __P((void));
|
|
|
|
/*
|
|
* what
|
|
*/
|
|
int
|
|
main(argc, argv)
|
|
int argc;
|
|
char **argv;
|
|
{
|
|
int c;
|
|
|
|
while ((c = getopt(argc, argv, "s")) != -1)
|
|
switch (c) {
|
|
case 's':
|
|
sflag = 1;
|
|
break;
|
|
default:
|
|
(void)fprintf(stderr,
|
|
"usage: what [-s] file ...\n");
|
|
exit(1);
|
|
}
|
|
argv += optind;
|
|
|
|
if (!*argv)
|
|
search();
|
|
else do {
|
|
if (!freopen(*argv, "r", stdin))
|
|
warn("%s", *argv);
|
|
else {
|
|
printf("%s:\n", *argv);
|
|
search();
|
|
}
|
|
} while(*++argv);
|
|
exit(!found);
|
|
}
|
|
|
|
void
|
|
search()
|
|
{
|
|
register int c;
|
|
|
|
while ((c = getchar()) != EOF) {
|
|
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 != '\\' && c != '\n')
|
|
putchar(c);
|
|
putchar('\n');
|
|
found = 1;
|
|
if (sflag)
|
|
return;
|
|
}
|
|
}
|