source: branches/stable/mindi-busybox/miscutils/strings.c @ 821

Last change on this file since 821 was 821, checked in by bruno, 13 years ago

Addition of busybox 1.2.1 as a mindi-busybox new package
This should avoid delivering binary files in mindi not built there (Fedora and Debian are quite serious about that)

File size: 3.5 KB
Line 
1/* vi: set sw=4 ts=4: */
2/*
3 * strings implementation for busybox
4 *
5 * Copyright (c) 1980, 1987
6 *  The Regents of the University of California.  All rights reserved.
7 *
8 * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
9 *
10 * Original copyright notice is retained at the end of this file.
11 *
12 * Modified for BusyBox by Erik Andersen <andersen@codepoet.org>
13 * Badly hacked by Tito Ragusa <farmatito@tiscali.it>
14 */
15
16#include "busybox.h"
17#include <stdio.h>
18#include <stdlib.h>
19#include <getopt.h>
20#include <ctype.h>
21
22#define WHOLE_FILE      1
23#define PRINT_NAME      2
24#define PRINT_OFFSET    4
25#define SIZE            8
26
27int strings_main(int argc, char **argv)
28{
29    int n, c, i = 0, status = EXIT_SUCCESS;
30    unsigned long opt;
31    unsigned long count;
32    FILE *file = stdin;
33    char *string;
34    const char *fmt = "%s: ";
35    char *n_arg = "4";
36
37    opt = bb_getopt_ulflags(argc, argv, "afon:", &n_arg);
38    /* -a is our default behaviour */
39
40    argc -= optind;
41    argv += optind;
42
43    n = bb_xgetlarg(n_arg, 10, 1, INT_MAX);
44    string = xzalloc(n + 1);
45    n--;
46
47    if (argc == 0) {
48        fmt = "{%s}: ";
49        *argv = (char *)bb_msg_standard_input;
50        goto PIPE;
51    }
52
53    do {
54        if ((file = bb_wfopen(*argv, "r"))) {
55PIPE:
56            count = 0;
57            do {
58                c = fgetc(file);
59                if (isprint(c) || c == '\t') {
60                    if (i <= n) {
61                        string[i] = c;
62                    } else {
63                        putchar(c);
64                    }
65                    if (i == n) {
66                        if (opt & PRINT_NAME) {
67                            printf(fmt, *argv);
68                        }
69                        if (opt & PRINT_OFFSET) {
70                            printf("%7lo ", count - n);
71                        }
72                        printf("%s", string);
73                    }
74                    i++;
75                } else {
76                    if (i > n) {
77                        putchar('\n');
78                    }
79                    i = 0;
80                }
81                count++;
82            } while (c != EOF);
83            bb_fclose_nonstdin(file);
84        } else {
85            status = EXIT_FAILURE;
86        }
87    } while (--argc > 0);
88
89    if (ENABLE_FEATURE_CLEAN_UP)
90        free(string);
91
92    bb_fflush_stdout_and_exit(status);
93}
94
95/*
96 * Copyright (c) 1980, 1987
97 *  The Regents of the University of California.  All rights reserved.
98 *
99 * Redistribution and use in source and binary forms, with or without
100 * modification, are permitted provided that the following conditions
101 * are met:
102 * 1. Redistributions of source code must retain the above copyright
103 *    notice, this list of conditions and the following disclaimer.
104 * 2. Redistributions in binary form must reproduce the above copyright
105 *    notice, this list of conditions and the following disclaimer in the
106 *    documentation and/or other materials provided with the distribution.
107 *
108 * 3. <BSD Advertising Clause omitted per the July 22, 1999 licensing change
109 *      ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change>
110 *
111 * 4. Neither the name of the University nor the names of its contributors
112 *    may be used to endorse or promote products derived from this software
113 *    without specific prior written permission.
114 *
115 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
116 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
117 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
118 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
119 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
120 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
121 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
122 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
123 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
124 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
125 * SUCH DAMAGE.
126 */
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