1 files changed, 31 insertions, 0 deletions
diff --git a/src/internal/tpax_readlink_impl.h b/src/internal/tpax_readlink_impl.h
new file mode 100644
index 0000000..328b302
--- /dev/null
+++ b/src/internal/tpax_readlink_impl.h
@@ -0,0 +1,31 @@
+/******************************************************/
+/*  tpax: a topological pax implementation            */
+/*  Copyright (C) 2020  Z. Gilboa                     */
+/*  Released under GPLv2 and GPLv3; see COPYING.TPAX. */
+/******************************************************/
+
+#ifndef TPAX_READLINK_IMPL_H
+#define TPAX_READLINK_IMPL_H
+
+#include <unistd.h>
+#include <errno.h>
+
+static inline int tpax_readlink(
+	const char *	restrict path,
+	char *		restrict buf,
+	ssize_t		bufsize)
+{
+	ssize_t ret;
+
+	if ((ret = readlink(path,buf,bufsize)) <= 0) {
+		return -1;
+	} else if (ret == bufsize) {
+		errno = ENOBUFS;
+		return -1;
+	} else {
+		buf[ret] = 0;
+		return 0;
+	}
+}
+
+#endif