From 06f20bf675cdd415c2f796ebea9fc55030ef49cc Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Thu, 26 Jan 2017 00:27:53 +0100 Subject: link: new applet coreutils grew itself a tiny simplistic alternative to ln: Usage: link FILE LINK Create hard LINK to FILE function old new delta link_main - 75 +75 packed_usage 31114 31131 +17 applet_names 2564 2569 +5 applet_main 1480 1484 +4 applet_install_loc 185 186 +1 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 4/0 up/down: 102/0) Total: 102 bytes Signed-off-by: Denys Vlasenko --- coreutils/link.c | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 coreutils/link.c (limited to 'coreutils/link.c') diff --git a/coreutils/link.c b/coreutils/link.c new file mode 100644 index 000000000..ac3ef85d9 --- /dev/null +++ b/coreutils/link.c @@ -0,0 +1,41 @@ +/* + * link implementation for busybox + * + * Copyright (C) 2017 Denys Vlasenko + * + * 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; +} -- cgit v1.2.3