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- #include "libbb.h"
- #define WHOLE_FILE 1
- #define PRINT_NAME 2
- #define PRINT_OFFSET 4
- #define SIZE 8
- #define PRINT_RADIX 16
- int strings_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
- int strings_main(int argc UNUSED_PARAM, char **argv)
- {
- int n, c;
- exitcode_t status = EXIT_SUCCESS;
- unsigned count;
- off_t offset;
- FILE *file;
- char *string;
- const char *fmt = "%s: ";
- const char *n_arg = "4";
-
- const char *radix = "o";
- char *radix_fmt;
- getopt32(argv, "afon:t:", &n_arg, &radix);
-
-
- argv += optind;
- n = xatou_range(n_arg, 1, INT_MAX);
- string = xzalloc(n + 1);
- n--;
- if ((radix[0] != 'd' && radix[0] != 'o' && radix[0] != 'x') || radix[1] != 0)
- bb_show_usage();
- radix_fmt = xasprintf("%%7"OFF_FMT"%s ", radix);
- 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 | PRINT_RADIX)) {
- printf(radix_fmt, offset - n);
- }
- fputs_stdout(string);
- }
- 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);
- free(radix_fmt);
- }
- fflush_stdout_and_exit(status);
- }
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