busybox/miscutils/strings.c

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

#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 opt;
	unsigned long count;
	FILE *file = stdin;
	char *string;
	const char *fmt = "%s: ";
	char *n_arg = "4";

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

	argc -= optind;
	argv += optind;

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

	if (argc == 0) {
		fmt = "{%s}: ";
		*argv = (char *)bb_msg_standard_input;
		goto PIPE;
	}

	do {
		file = fopen_or_warn(*argv, "r");
		if (file) {
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);
			fclose_if_not_stdin(file);
		} else {
			status = EXIT_FAILURE;
		}
	} while (--argc > 0);

	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 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 "busybox.h"
11	#include <stdio.h>
12	#include <stdlib.h>
13	#include <getopt.h>
14	#include <ctype.h>
15
16	#define WHOLE_FILE 1
17	#define PRINT_NAME 2
18	#define PRINT_OFFSET 4
19	#define SIZE 8
20
21	int strings_main(int argc, char **argv)
22	{
23	int n, c, i = 0, status = EXIT_SUCCESS;
24	unsigned opt;
25	unsigned long count;
26	FILE *file = stdin;
27	char *string;
28	const char *fmt = "%s: ";
29	char *n_arg = "4";
30
31	opt = getopt32(argc, argv, "afon:", &n_arg);
32	/* -a is our default behaviour */
33
34	argc -= optind;
35	argv += optind;
36
37	n = xatoul_range(n_arg, 1, INT_MAX);
38	string = xzalloc(n + 1);
39	n--;
40
41	if (argc == 0) {
42	fmt = "{%s}: ";
43	argv = (char )bb_msg_standard_input;
44	goto PIPE;
45	}
46
47	do {
48	file = fopen_or_warn(*argv, "r");
49	if (file) {
50	PIPE:
51	count = 0;
52	do {
53	c = fgetc(file);
54	if (isprint(c) \|\| c == '\t') {
55	if (i <= n) {
56	string[i] = c;
57	} else {
58	putchar(c);
59	}
60	if (i == n) {
61	if (opt & PRINT_NAME) {
62	printf(fmt, *argv);
63	}
64	if (opt & PRINT_OFFSET) {
65	printf("%7lo ", count - n);
66	}
67	printf("%s", string);
68	}
69	i++;
70	} else {
71	if (i > n) {
72	putchar('\n');
73	}
74	i = 0;
75	}
76	count++;
77	} while (c != EOF);
78	fclose_if_not_stdin(file);
79	} else {
80	status = EXIT_FAILURE;
81	}
82	} while (--argc > 0);
83
84	if (ENABLE_FEATURE_CLEAN_UP)
85	free(string);
86
87	fflush_stdout_and_exit(status);
88	}