/* 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(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); }