1 files changed, 47 insertions, 0 deletions
diff --git a/bin/cpt-readlink.c b/bin/cpt-readlink.c
new file mode 100644
index 0000000..cc6c8ff
--- /dev/null
+++ b/bin/cpt-readlink.c
@@ -0,0 +1,47 @@
+/* kiss-readlink --- a utility replacement for readlink
+ * See LICENSE for copyright information.
+ *
+ * This is basically a 'readlink -f' command.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <libgen.h>
+#include <string.h>
+#include <limits.h>
+
+#define DIR_MAX PATH_MAX - NAME_MAX - 1
+
+
+char *realpath(const char *path, char *resolved_path);
+
+int
+main(int argc, char *argv[])
+{
+
+	char buf[PATH_MAX];
+
+	/* We are going to use these if the file doesn't exist, but we can still
+	 * use directories above the file. We are using dname and bname so that
+	 * they don't clash with the functions with the same name.
+	 */
+	char dname[DIR_MAX]; /* directory name */
+	char bname[NAME_MAX]; /* base name      */
+	sprintf(bname, "%s", (basename(argv[1])));
+
+	if (argc != 2 || strcmp(argv[1], "--help") == 0) {
+		fprintf(stderr, "usage: %s [file]\n", argv[0]);
+		return 1;
+	}
+
+	if (!realpath(argv[1], buf)) {
+
+		if (!realpath(dirname(argv[1]), dname)) {
+			perror(argv[0]);
+			return 1;
+		}
+		sprintf(buf, "%s/%s", dname, bname);
+	}
+
+	printf("%s\n", buf);
+	return 0;
+}