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/* vi: set sw=4 ts=4: */
/*
* strings implementation for busybox
*
* Copyright (c) 1980, 1987
* The Regents of the University of California. All rights reserved.
*
* Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
*
* Original copyright notice is retained at the end of this file.
*
* Modified for BusyBox by Erik Andersen <andersen@codepoet.org>
* Badly hacked by Tito Ragusa <farmatito@tiscali.it>
*/
#include "busybox.h"
#include <stdio.h>
#include <stdlib.h>
#include <getopt.h>
#include <ctype.h>
#define WHOLE_FILE 1
#define PRINT_NAME 2
#define PRINT_OFFSET 4
#define SIZE 8
int strings_main(int argc, char **argv)
{
int n, c, i = 0, status = EXIT_SUCCESS;
unsigned long opt;
unsigned long count;
FILE *file = stdin;
char *string;
const char *fmt = "%s: ";
char *n_arg = "4";
opt = bb_getopt_ulflags(argc, argv, "afon:", &n_arg);
/* -a is our default behaviour */
argc -= optind;
argv += optind;
n = bb_xgetlarg(n_arg, 10, 1, INT_MAX);
string = xzalloc(n + 1);
n--;
if (argc == 0) {
fmt = "{%s}: ";
*argv = (char *)bb_msg_standard_input;
goto PIPE;
}
do {
if ((file = bb_wfopen(*argv, "r"))) {
PIPE:
count = 0;
do {
c = fgetc(file);
if (isprint(c) || c == '\t') {
if (i <= n) {
string[i] = c;
} else {
putchar(c);
}
if (i == n) {
if (opt & PRINT_NAME) {
printf(fmt, *argv);
}
if (opt & PRINT_OFFSET) {
printf("%7lo ", count - n);
}
printf("%s", string);
}
i++;
} else {
if (i > n) {
putchar('\n');
}
i = 0;
}
count++;
} while (c != EOF);
bb_fclose_nonstdin(file);
} else {
status = EXIT_FAILURE;
}
} while (--argc > 0);
if (ENABLE_FEATURE_CLEAN_UP)
free(string);
bb_fflush_stdout_and_exit(status);
}
/*
* Copyright (c) 1980, 1987
* 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. <BSD Advertising Clause omitted per the July 22, 1999 licensing change
* ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change>
*
* 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.
*/
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