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/*
* link implementation for busybox
*
* Copyright (C) 2017 Denys Vlasenko <vda.linux@googlemail.com>
*
* Licensed under GPLv2, see file LICENSE in this source tree.
*/
//config:config LINK
//config: bool "link"
//config: default y
//config: help
//config: link creates hard links between files.
//applet:IF_LINK(APPLET_NOFORK(link, link, BB_DIR_BIN, BB_SUID_DROP, link))
//kbuild:lib-$(CONFIG_LINK) += link.o
//usage:#define link_trivial_usage
//usage: "FILE LINK"
//usage:#define link_full_usage "\n\n"
//usage: "Create hard LINK to FILE"
#include "libbb.h"
/* This is a NOFORK applet. Be very careful! */
int link_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int link_main(int argc UNUSED_PARAM, char **argv)
{
opt_complementary = "=2"; /* exactly 2 params */
getopt32(argv, "");
argv += optind;
if (link(argv[0], argv[1]) != 0) {
/* shared message */
bb_perror_msg_and_die("can't create %slink "
"%s to %s", "hard",
argv[1], argv[0]
);
}
return EXIT_SUCCESS;
}
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