1 files changed, 53 insertions, 0 deletions
diff --git a/openbsd-compat/bsd-waitpid.c b/openbsd-compat/bsd-waitpid.c
new file mode 100644
index 0000000..113fb1e
--- /dev/null
+++ b/openbsd-compat/bsd-waitpid.c
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2000 Ben Lindstrom.  All rights reserved.
+ *
+ * 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 ``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 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 "includes.h"
+
+#ifndef HAVE_WAITPID
+#include <errno.h>
+#include <sys/wait.h>
+#include "bsd-waitpid.h"
+
+pid_t
+waitpid(int pid, int *stat_loc, int options)
+{
+	union wait statusp;
+	pid_t wait_pid;
+
+	if (pid <= 0) {
+		if (pid != -1) {
+			errno = EINVAL;
+			return (-1);
+		}
+		/* wait4() wants pid=0 for indiscriminate wait. */
+		pid = 0;
+	}
+	wait_pid = wait4(pid, &statusp, options, NULL);
+	if (stat_loc)
+		*stat_loc = (int) statusp.w_status;
+
+	return (wait_pid);
+}
+
+#endif /* !HAVE_WAITPID */