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diff --git a/third_party/heimdal/lib/roken/test-detach.c b/third_party/heimdal/lib/roken/test-detach.c
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+/***********************************************************************
+ * 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)
+{
+/*
+ * XXXrcd: let's see how much further the tests get when we disable this
+ * on Windows.
+ */
+#ifndef WIN32
+ char *ends;
+ long n;
+ int fd = -1;
+ pid_t parent = getpid();
+ pid_t child;
+
+ if (argc == 2 && strcmp(argv[1], "--reexec") != 0)
+ errx(1, "Usage: test-detach [--reexec] [--daemon-child FD]");
+ if (argc == 3 || argc == 4) {
+ parent = getppid();
+ 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 {
+ if (argc == 2)
+ /* Make sure we re-exec on the child-side of fork() (not WIN32) */
+ putenv("ROKEN_DETACH_USE_EXEC=1");
+ fd = roken_detach_prep(argc, argv, "--daemon-child");
+ if (fd == -1)
+ errx(1, "bad");
+ }
+ if (parent == getpid())
+ errx(1, "detach prep failed");
+ child = getpid();
+ roken_detach_finish(NULL, fd);
+ if (child != getpid())
+ errx(1, "detach finish failed");
+ /*
+ * 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;
+#else
+ return 0;
+#endif
+}