--- /dev/null
+#define _XOPEN_SOURCE_EXTENDED
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/wait.h>
+#include <errno.h>
+
+#if !defined __ARCH_USE_MMU__
+# define fork vfork
+#endif
+
+int main(int argc, char *argv[]) {
+ int fd, status;
+ char buff[5];
+ char template[] = "/tmp/test-mkostemp.XXXXXX";
+
+ fd = mkostemp(template, O_CLOEXEC);
+ unlink(template);
+
+ snprintf(buff, 5, "%d", fd);
+
+ if(!fork())
+ if(execl("./test-mkostemp-child", "test-mkostemp-child", buff, NULL) == -1)
+ exit(EXIT_FAILURE);
+
+ wait(&status);
+
+ memset(buff, 0, 5);
+ lseek(fd, 0, SEEK_SET);
+ errno = 0;
+ if(read(fd, buff, 5) == -1)
+ exit(EXIT_FAILURE);
+
+ if(!strncmp(buff, "test", 5))
+ exit(EXIT_FAILURE);
+ else
+ exit(EXIT_SUCCESS);
+
+ close(fd);
+ exit(EXIT_SUCCESS);
+}