1 files changed, 20 insertions, 0 deletions
diff --git a/src/lib9/waitpid.c b/src/lib9/waitpid.c
new file mode 100644
index 00000000..3df8ef89
--- /dev/null
+++ b/src/lib9/waitpid.c
@@ -0,0 +1,20 @@
+#include <u.h>
+#include <libc.h>
+
+int
+waitpid(void)
+{
+	int n;
+	char buf[512], *fld[5];
+
+	n = await(buf, sizeof buf-1);
+	if(n <= 0)
+		return -1;
+	buf[n] = '\0';
+	if(tokenize(buf, fld, nelem(fld)) != nelem(fld)){
+		werrstr("couldn't parse wait message");
+		return -1;
+	}
+	return atoi(fld[0]);
+}
+