1 files changed, 102 insertions, 0 deletions
diff --git a/busybox/coreutils/ln.c b/busybox/coreutils/ln.c
new file mode 100644
index 0000000..885ba61
--- /dev/null
+++ b/busybox/coreutils/ln.c
@@ -0,0 +1,102 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Mini ln implementation for busybox
+ *
+ * Copyright (C) 1999-2004 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;
+	char *src;
+	struct stat statbuf;
+	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 = NULL;
+		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 = src;
+		}
+		if (!(flag & LN_SYMLINK) && stat(*argv, &statbuf)) {
+			bb_perror_msg(*argv);
+			status = EXIT_FAILURE;
+			free(src_name);
+			continue;
+		}
+
+		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;
+}