1 files changed, 55 insertions, 0 deletions
diff --git a/rtemstoolkit/elftoolchain/libelftc/elftc_timestamp.c b/rtemstoolkit/elftoolchain/libelftc/elftc_timestamp.c
new file mode 100644
index 0000000..ccf482f
--- /dev/null
+++ b/rtemstoolkit/elftoolchain/libelftc/elftc_timestamp.c
@@ -0,0 +1,55 @@
+/*-
+ * Copyright (c) 2016 The FreeBSD Foundation
+ * All rights reserved.
+ *
+ * This software was developed by Ed Maste under sponsorship
+ * of the FreeBSD Foundation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <errno.h>
+#include <stdlib.h>
+#include <time.h>
+#include <libelftc.h>
+
+int
+elftc_timestamp(time_t *timestamp)
+{
+	long long source_date_epoch;
+	char *env, *eptr;
+
+	if ((env = getenv("SOURCE_DATE_EPOCH")) != NULL) {
+		errno = 0;
+		source_date_epoch = strtoll(env, &eptr, 10);
+		if (*eptr != '\0')
+			errno = EINVAL;
+		if (source_date_epoch < 0)
+			errno = ERANGE;
+		if (errno != 0)
+			return (-1);
+		*timestamp = source_date_epoch;
+		return (0);
+	}
+	*timestamp = time(NULL);
+	return (0);
+}