mirror of
https://github.com/topjohnwu/ndk-busybox.git
synced 2024-12-02 08:46:21 +00:00
89 lines
1.6 KiB
C
89 lines
1.6 KiB
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 <getopt.h>
|
|
|
|
#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);
|
|
int strings_main(int argc, char **argv)
|
|
{
|
|
int n, c, status = EXIT_SUCCESS;
|
|
unsigned opt;
|
|
unsigned count;
|
|
off_t offset;
|
|
FILE *file = stdin;
|
|
char *string;
|
|
const char *fmt = "%s: ";
|
|
const char *n_arg = "4";
|
|
|
|
opt = getopt32(argc, 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;
|
|
goto PIPE;
|
|
}
|
|
|
|
do {
|
|
file = fopen_or_warn(*argv, "r");
|
|
if (!file) {
|
|
status = EXIT_FAILURE;
|
|
continue;
|
|
}
|
|
PIPE:
|
|
offset = 0;
|
|
count = 0;
|
|
do {
|
|
c = fgetc(file);
|
|
if (isprint(c) || c == '\t') {
|
|
if (count > n) {
|
|
putchar(c);
|
|
} else {
|
|
string[count] = c;
|
|
if (count == n) {
|
|
if (opt & PRINT_NAME) {
|
|
printf(fmt, *argv);
|
|
}
|
|
if (opt & PRINT_OFFSET) {
|
|
printf("%7"OFF_FMT"o ", offset - n);
|
|
}
|
|
fputs(string, stdout);
|
|
}
|
|
count++;
|
|
}
|
|
} else {
|
|
if (count > n) {
|
|
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);
|
|
}
|