diff options
Diffstat (limited to 'release/src/router/busybox/coreutils/ln.c')
-rw-r--r-- | release/src/router/busybox/coreutils/ln.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/release/src/router/busybox/coreutils/ln.c b/release/src/router/busybox/coreutils/ln.c new file mode 100644 index 00000000..5217634f --- /dev/null +++ b/release/src/router/busybox/coreutils/ln.c @@ -0,0 +1,105 @@ +/* vi: set sw=4 ts=4: */ +/* + * Mini ln implementation for busybox + * + * Copyright (C) 1999-2003 by Erik Andersen <andersen@codepoet.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +/* BB_AUDIT SUSv3 compliant */ +/* BB_AUDIT GNU options missing: -b, -d, -F, -i, -S, and -v. */ +/* http://www.opengroup.org/onlinepubs/007904975/utilities/ln.html */ + +/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org) + * + * Fixed bug involving -n option. Essentially, -n was always in effect. + */ + +#include <stdlib.h> +#include <unistd.h> +#include "busybox.h" + +#define LN_SYMLINK 1 +#define LN_FORCE 2 +#define LN_NODEREFERENCE 4 + +extern int ln_main(int argc, char **argv) +{ + int status = EXIT_SUCCESS; + int flag; + char *last; + char *src_name; + const char *src; + int (*link_func)(const char *, const char *); + + flag = bb_getopt_ulflags(argc, argv, "sfn"); + + if (argc == optind) { + bb_show_usage(); + } + + last = argv[argc - 1]; + argv += optind; + + if (argc == optind + 1) { + *--argv = last; + last = bb_get_last_path_component(bb_xstrdup(last)); + } + + do { + src_name = 0; + src = last; + + if (is_directory(src, + (flag & LN_NODEREFERENCE) ^ LN_NODEREFERENCE, + NULL)) { + src_name = bb_xstrdup(*argv); + src = concat_path_file(src, bb_get_last_path_component(src_name)); + free(src_name); + src_name = (char *)src; + } + + if (flag & LN_FORCE) { + unlink(src); + } + + link_func = link; + if (flag & LN_SYMLINK) { + link_func = symlink; + } + + if (link_func(*argv, src) != 0) { + bb_perror_msg(src); + status = EXIT_FAILURE;; + } + + free(src_name); + + } while ((++argv)[1]); + + return status; +} + + + + + + + + + + |