busybox/miscutils/strings.c

/* vi: set sw=4 ts=4: */
/*
 * strings implementation for busybox
 *
 * Copyright 2003 Tito Ragusa <farmatito@tiscali.it>
 *
 * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
 */

#include "libbb.h"

#define WHOLE_FILE		1
#define PRINT_NAME		2
#define PRINT_OFFSET	4
#define SIZE			8

int strings_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int strings_main(int argc UNUSED_PARAM, char **argv)
{
	int n, c, status = EXIT_SUCCESS;
	unsigned count;
	off_t offset;
	FILE *file;
	char *string;
	const char *fmt = "%s: ";
	const char *n_arg = "4";

	getopt32(argv, "afon:", &n_arg);
	/* -a is our default behaviour */
	/*argc -= optind;*/
	argv += optind;

	n = xatou_range(n_arg, 1, INT_MAX);
	string = xzalloc(n + 1);
	n--;

	if (!*argv) {
		fmt = "{%s}: ";
		*--argv = (char *)bb_msg_standard_input;
	}

	do {
		file = fopen_or_warn_stdin(*argv);
		if (!file) {
			status = EXIT_FAILURE;
			continue;
		}
		offset = 0;
		count = 0;
		do {
			c = fgetc(file);
			if (isprint_asciionly(c) || c == '\t') {
				if (count > n) {
					bb_putchar(c);
				} else {
					string[count] = c;
					if (count == n) {
						if (option_mask32 & PRINT_NAME) {
							printf(fmt, *argv);
						}
						if (option_mask32 & PRINT_OFFSET) {
							printf("%7"OFF_FMT"o ", offset - n);
						}
						fputs(string, stdout);
					}
					count++;
				}
			} else {
				if (count > n) {
					bb_putchar('\n');
				}
				count = 0;
			}
			offset++;
		} while (c != EOF);
		fclose_if_not_stdin(file);
	} while (*++argv);

	if (ENABLE_FEATURE_CLEAN_UP)
		free(string);

	fflush_stdout_and_exit(status);
}
1	/* vi: set sw=4 ts=4: */
2	/*
3	* strings implementation for busybox
4	*
5	* Copyright 2003 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 count;
22	off_t offset;
23	FILE *file;
24	char *string;
25	const char *fmt = "%s: ";
26	const char *n_arg = "4";
27
28	getopt32(argv, "afon:", &n_arg);
29	/* -a is our default behaviour */
30	/argc -= optind;/
31	argv += optind;
32
33	n = xatou_range(n_arg, 1, INT_MAX);
34	string = xzalloc(n + 1);
35	n--;
36
37	if (!*argv) {
38	fmt = "{%s}: ";
39	--argv = (char )bb_msg_standard_input;
40	}
41
42	do {
43	file = fopen_or_warn_stdin(*argv);
44	if (!file) {
45	status = EXIT_FAILURE;
46	continue;
47	}
48	offset = 0;
49	count = 0;
50	do {
51	c = fgetc(file);
52	if (isprint_asciionly(c) \|\| c == '\t') {
53	if (count > n) {
54	bb_putchar(c);
55	} else {
56	string[count] = c;
57	if (count == n) {
58	if (option_mask32 & PRINT_NAME) {
59	printf(fmt, *argv);
60	}
61	if (option_mask32 & PRINT_OFFSET) {
62	printf("%7"OFF_FMT"o ", offset - n);
63	}
64	fputs(string, stdout);
65	}
66	count++;
67	}
68	} else {
69	if (count > n) {
70	bb_putchar('\n');
71	}
72	count = 0;
73	}
74	offset++;
75	} while (c != EOF);
76	fclose_if_not_stdin(file);
77	} while (*++argv);
78
79	if (ENABLE_FEATURE_CLEAN_UP)
80	free(string);
81
82	fflush_stdout_and_exit(status);
83	}