1 /* vi: set sw=4 ts=4: */
3 * cat implementation for busybox
5 * Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
7 * Licensed under GPLv2, see file License in this tarball for details.
10 /* BB_AUDIT SUSv3 compliant */
11 /* http://www.opengroup.org/onlinepubs/007904975/utilities/cat.html */
13 //kbuild:lib-$(CONFIG_CAT) += cat.o
14 //kbuild:lib-$(CONFIG_MORE) += cat.o # more uses it if stdout isn't a tty
15 //kbuild:lib-$(CONFIG_LESS) += cat.o # less too
16 //kbuild:lib-$(CONFIG_CRONTAB) += cat.o # crontab -l
22 //config: cat is used to concatenate files and print them to the standard
23 //config: output. Enable this option if you wish to enable the 'cat' utility.
27 /* This is a NOFORK applet. Be very careful! */
30 int bb_cat(char **argv)
33 int retval = EXIT_SUCCESS;
36 argv = (char**) &bb_argv_dash;
39 fd = open_or_warn_stdin(*argv);
41 /* This is not a xfunc - never exits */
42 off_t r = bb_copyfd_eof(fd, STDOUT_FILENO);
43 if (fd != STDIN_FILENO)
48 retval = EXIT_FAILURE;
54 int cat_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
55 int cat_main(int argc UNUSED_PARAM, char **argv)