Contents of /tags/mkinitrd-6_1_8/busybox/miscutils/strings.c
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Wed Oct 28 00:17:50 2009 UTC (14 years, 11 months ago) by niro
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File size: 1598 byte(s)
Wed Oct 28 00:17:50 2009 UTC (14 years, 11 months ago) by niro
File MIME type: text/plain
File size: 1598 byte(s)
tagged 'mkinitrd-6_1_8'
1 | /* vi: set sw=4 ts=4: */ |
2 | /* |
3 | * strings implementation for busybox |
4 | * |
5 | * Copyright Tito Ragusa <farmatito@tiscali.it> |
6 | * |
7 | * Licensed under the GPL v2 or later, see the file LICENSE in this tarball. |
8 | */ |
9 | |
10 | #include "libbb.h" |
11 | |
12 | #define WHOLE_FILE 1 |
13 | #define PRINT_NAME 2 |
14 | #define PRINT_OFFSET 4 |
15 | #define SIZE 8 |
16 | |
17 | int strings_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
18 | int strings_main(int argc UNUSED_PARAM, char **argv) |
19 | { |
20 | int n, c, status = EXIT_SUCCESS; |
21 | unsigned opt; |
22 | unsigned count; |
23 | off_t offset; |
24 | FILE *file; |
25 | char *string; |
26 | const char *fmt = "%s: "; |
27 | const char *n_arg = "4"; |
28 | |
29 | opt = getopt32(argv, "afon:", &n_arg); |
30 | /* -a is our default behaviour */ |
31 | /*argc -= optind;*/ |
32 | argv += optind; |
33 | |
34 | n = xatou_range(n_arg, 1, INT_MAX); |
35 | string = xzalloc(n + 1); |
36 | n--; |
37 | |
38 | if (!*argv) { |
39 | fmt = "{%s}: "; |
40 | *--argv = (char *)bb_msg_standard_input; |
41 | } |
42 | |
43 | do { |
44 | file = fopen_or_warn_stdin(*argv); |
45 | if (!file) { |
46 | status = EXIT_FAILURE; |
47 | continue; |
48 | } |
49 | offset = 0; |
50 | count = 0; |
51 | do { |
52 | c = fgetc(file); |
53 | if (isprint(c) || c == '\t') { |
54 | if (count > n) { |
55 | bb_putchar(c); |
56 | } else { |
57 | string[count] = c; |
58 | if (count == n) { |
59 | if (opt & PRINT_NAME) { |
60 | printf(fmt, *argv); |
61 | } |
62 | if (opt & PRINT_OFFSET) { |
63 | printf("%7"OFF_FMT"o ", offset - n); |
64 | } |
65 | fputs(string, stdout); |
66 | } |
67 | count++; |
68 | } |
69 | } else { |
70 | if (count > n) { |
71 | bb_putchar('\n'); |
72 | } |
73 | count = 0; |
74 | } |
75 | offset++; |
76 | } while (c != EOF); |
77 | fclose_if_not_stdin(file); |
78 | } while (*++argv); |
79 | |
80 | if (ENABLE_FEATURE_CLEAN_UP) |
81 | free(string); |
82 | |
83 | fflush_stdout_and_exit(status); |
84 | } |