Initial revision0_29alpha2

1 files changed, 52 insertions, 0 deletions

diff --git a/ln.c b/ln.c
new file mode 100644
index 0000000..3e87b57
--- /dev/null
+++ b/ln.c
@@ -0,0 +1,52 @@
+#include "internal.h"
+#include <stdio.h>
+#include <sys/stat.h>
+#include <sys/param.h>
+#include <errno.h>
+
+const char	ln_usage[] = "ln [-s] [-f] original-name additional-name\n"
+"\n"
+"\tAdd a new name that refers to the same file as \"original-name\"\n"
+"\n"
+"\t-s:\tUse a \"symbolic\" link, instead of a \"hard\" link.\n"
+"\t-f:\tRemove existing destination files.\n";
+
+int
+ln_fn(const struct FileInfo * i)
+{
+	int				status = 0;
+	char			d[PATH_MAX];
+	const char *	destination = i->destination;
+
+	if ( !i->makeSymbolicLink && (i->stat.st_mode & S_IFMT) == S_IFDIR ) {
+		fprintf(stderr, "Please use \"ln -s\" to link directories.\n");
+		return 1;
+	}
+
+	/*
+	 * If the destination is a directory, create a file within it.
+	 */
+	if ( is_a_directory(i->destination) ) {
+			destination = join_paths(
+			 d
+			,i->destination
+			,&i->source[i->directoryLength]);
+	}
+
+	if ( i->force )
+		status = ( unlink(destination) && errno != ENOENT );
+
+	if ( status == 0 ) {
+		if ( i->makeSymbolicLink )
+			status = symlink(i->source, destination);
+		else
+			status = link(i->source, destination);
+	}
+
+	if ( status != 0 ) {
+		name_and_error(destination);
+		return 1;
+	}
+	else
+		return 0;
+}