1 files changed, 75 insertions, 0 deletions
diff --git a/Tools/portbuild/scripts/ptimeout.c b/Tools/portbuild/scripts/ptimeout.c
new file mode 100644
index 000000000000..33e9ecc4f3a9
--- /dev/null
+++ b/Tools/portbuild/scripts/ptimeout.c
@@ -0,0 +1,75 @@
+/* ptimeout: executes command but kills it after a specified timeout
+ * usage: ptimeout timeout command args ...
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/param.h>
+#include <sys/types.h>
+#include <signal.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <time.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+int
+main(int argc, char *argv[])
+{
+    	int timeout, status, i;
+	pid_t pid1, pid2, child;
+	char *command, args[MAXPATHLEN + 1];
+	time_t t;
+
+	if (argc < 3) {
+		printf("usage: %s timeout command [args ...]\n", argv[0]);
+		exit(1);
+	}
+
+	timeout = atoi(argv[1]);
+	command = argv[2];
+
+	bzero(args, MAXPATHLEN + 1);
+	for (i = 2; i < argc; i++) {
+	    	strlcat(args, argv[i], MAXPATHLEN - strlen(args));
+		strlcat(args, " ", MAXPATHLEN - strlen(args));
+	}
+
+	/*printf("timeout is %d\n", timeout);
+	printf("arguments are %s\n", args);*/
+
+	if ((pid1 = fork()) > 0) {
+	    	if ((pid2 = fork()) > 0) {
+		    /* parent */
+		    /*printf("child pids are %d %d\n", pid1, pid2);*/
+		    child = wait(&status);
+		    /*printf("exited child is %d, status is %d\n", child, status);*/
+		    if (pid1 = child) {
+			/*printf("killing process %d\n", pid2);*/
+			kill(pid2, SIGTERM);
+		    } else {
+			/*printf("killing process %d\n", pid1);*/
+			kill(pid1, SIGTERM);
+		    }
+		    /* exit status in upper 8 bits, killed signal (if any)
+		     * in lower 8 bits
+		     */
+		    exit((status >> 8) | (status & 0xff));
+		} else {
+		    /* second child */
+		    sleep(timeout);
+		    t = time(NULL);
+		    printf("ptimeout: killing %s (pid %d) since timeout of %d expired at %s", args, pid1, timeout, ctime(&t));
+		    kill(pid1, SIGTERM);
+		    exit(1);
+		}
+	} else {
+	    	/* first child */
+		/*printf("executing %s\n", args);*/
+		execvp(command, argv + 2);
+	}
+
+	/* Shouldn't be reached. */
+	return 0;
+}