1 files changed, 45 insertions, 0 deletions
diff --git a/usr/src/tools/ctf/cvt/altexec.c b/usr/src/tools/ctf/cvt/altexec.c
new file mode 100644
index 0000000000..c986c0731a
--- /dev/null
+++ b/usr/src/tools/ctf/cvt/altexec.c
@@ -0,0 +1,45 @@
+/*
+ * This file and its contents are supplied under the terms of the
+ * Common Development and Distribution License ("CDDL"), version 1.0.
+ * You may only use this file in accordance with the terms of version
+ * 1.0 of the CDDL.
+ *
+ * A full copy of the text of the CDDL should have accompanied this
+ * source.  A copy of the CDDL is also available via the Internet at
+ * http://www.illumos.org/license/CDDL.
+ */
+
+/*
+ * Copyright (c) 2015, Joyent, Inc.
+ */
+
+/*
+ * Alternate execution engine for CTF tools
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "ctftools.h"
+
+void
+ctf_altexec(const char *env, int argc, char **argv)
+{
+	const char *alt;
+	char *altexec;
+
+	alt = getenv(env);
+	if (alt == NULL || *alt == '\0')
+		return;
+
+	altexec = strdup(alt);
+	if (altexec == NULL)
+		terminate("failed to allocate memory for altexec\n");
+
+	if (unsetenv(env) != 0)
+		aborterr("failed to remove %s from environment", env);
+
+	(void) execv(altexec, argv);
+	terminate("failed to altexec %s", altexec);
+}