1 files changed, 82 insertions, 0 deletions
diff --git a/lib/roken/test-detach.c b/lib/roken/test-detach.c
new file mode 100644
index 000000000000..09434d8ab9e5
--- /dev/null
+++ b/lib/roken/test-detach.c
@@ -0,0 +1,82 @@
+/***********************************************************************
+ * Copyright (c) 2015, Cryptonector LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * - 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 COPYRIGHT HOLDERS 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
+ * COPYRIGHT HOLDER 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 <config.h>
+
+#include <sys/types.h>
+#include <err.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#ifdef WIN32
+#include <process.h>
+#ifdef getpid
+#undef getpid
+#endif
+#define getpid _getpid
+#else
+#include <unistd.h>
+#endif
+#include "roken.h"
+
+int main(int argc, char **argv)
+{
+    char *ends;
+    long n;
+    int fd = -1;
+
+    if (argc > 1) {
+	if (argc != 3)
+	    errx(1, "Usage: test-detach [--daemon-child fd]");
+	fprintf(stderr, "Child started (argv[1] = %s, argv[2] = %s)!\n", argv[1], argv[2]);
+        errno = 0;
+        n = strtol(argv[2], &ends, 10);
+        fd = n;
+        if (errno != 0)
+	    err(1, "Usage: test-detach [--daemon-child fd]");
+        if (n < 0 || ends == NULL || *ends != '\0' || n != fd)
+	    errx(1, "Usage: test-detach [--daemon-child fd]");
+    } else {
+	fprintf(stderr, "Parent started as %ld\n", (long)getpid());
+	roken_detach_prep(argc, argv, "--daemon-child");
+    }
+    fprintf(stderr, "Now should be the child: %ld\n", (long)getpid());
+    roken_detach_finish(NULL, fd);
+    /*
+     * These printfs will not appear: stderr will have been replaced
+     * with /dev/null.
+     */
+    fprintf(stderr, "Now should be the child: %ld, wrote to parent\n", (long)getpid());
+    sleep(5);
+    fprintf(stderr, "Daemon child done\n");
+    return 0;
+}