mirror of
https://github.com/sheumann/hush.git
synced 2024-06-22 01:29:33 +00:00
62a90cdd74
function old new delta lsattr_main 62 143 +81 open_or_warn_stdin - 36 +36 fclose_if_not_stdin 20 47 +27 xfopen_stdin - 20 +20 tac_main 336 356 +20 cksum_main 249 259 +10 bb_argv_dash - 8 +8 su_main 448 455 +7 cmp_main 630 633 +3 passwd_main 1072 1074 +2 uudecode_main 317 315 -2 text_yank 110 108 -2 handle_incoming_and_exit 2653 2651 -2 flags 5 1 -4 write_leases 235 230 -5 fopen_or_warn_stdin 48 42 -6 fold_main 648 642 -6 static.argv_dash 8 - -8 sum_main 142 128 -14 tail_main 1237 1221 -16 sed_main 711 695 -16 cmp_xfopen_input 17 - -17 bb_cat 113 96 -17 catv_main 328 306 -22 strings_main 457 434 -23 hash_file 298 274 -24 sum_file 353 325 -28 sort_main 904 859 -45 expand_main 736 686 -50 cut_main 1116 1065 -51 md5_sha1_sum_main 549 493 -56 lsattr_args 90 - -90 read_stduu 408 255 -153 ------------------------------------------------------------------------------ (add/remove: 3/3 grow/shrink: 7/20 up/down: 214/-657) Total: -443 bytes text data bss dec hex filename 797417 658 7428 805503 c4a7f busybox_old 796973 658 7428 805059 c48c3 busybox_unstripped
107 lines
2.4 KiB
C
107 lines
2.4 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* tac implementation for busybox
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*
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* Copyright (C) 2003 Yang Xiaopeng <yxp at hanwang.com.cn>
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* Copyright (C) 2007 Natanael Copa <natanael.copa@gmail.com>
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* Copyright (C) 2007 Tito Ragusa <farmatito@tiscali.it>
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*
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* Licensed under GPLv2, see file License in this tarball for details.
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*
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*/
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/* tac - concatenate and print files in reverse */
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/* Based on Yang Xiaopeng's (yxp at hanwang.com.cn) patch
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* http://www.uclibc.org/lists/busybox/2003-July/008813.html
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*/
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#include "libbb.h"
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/* This is a NOEXEC applet. Be very careful! */
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struct lstring {
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int size;
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char buf[1];
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};
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int tac_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int tac_main(int argc ATTRIBUTE_UNUSED, char **argv)
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{
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char **name;
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FILE *f;
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struct lstring *line = NULL;
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llist_t *list = NULL;
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int retval = EXIT_SUCCESS;
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#if ENABLE_DESKTOP
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/* tac from coreutils 6.9 supports:
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-b, --before
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attach the separator before instead of after
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-r, --regex
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interpret the separator as a regular expression
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-s, --separator=STRING
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use STRING as the separator instead of newline
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We support none, but at least we will complain or handle "--":
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*/
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getopt32(argv, "");
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argv += optind;
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#else
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argv++;
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#endif
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if (!*argv)
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*--argv = (char *)"-";
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/* We will read from last file to first */
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name = argv;
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while (*name)
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name++;
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do {
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int ch, i;
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name--;
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f = fopen_or_warn_stdin(*name);
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if (f == NULL) {
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/* error message is printed by fopen_or_warn_stdin */
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retval = EXIT_FAILURE;
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continue;
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}
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errno = i = 0;
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do {
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ch = fgetc(f);
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if (ch != EOF) {
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if (!(i & 0x7f))
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/* Grow on every 128th char */
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line = xrealloc(line, i + 0x7f + sizeof(int) + 1);
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line->buf[i++] = ch;
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}
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if (ch == '\n' || (ch == EOF && i != 0)) {
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line = xrealloc(line, i + sizeof(int));
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line->size = i;
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llist_add_to(&list, line);
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line = NULL;
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i = 0;
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}
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} while (ch != EOF);
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/* fgetc sets errno to ENOENT on EOF, we don't want
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* to warn on this non-error! */
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if (errno && errno != ENOENT) {
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bb_simple_perror_msg(*name);
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retval = EXIT_FAILURE;
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}
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} while (name != argv);
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while (list) {
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line = (struct lstring *)list->data;
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xwrite(STDOUT_FILENO, line->buf, line->size);
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if (ENABLE_FEATURE_CLEAN_UP) {
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free(llist_pop(&list));
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} else {
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list = list->link;
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}
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}
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return retval;
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}
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