Add support for dup()ing fake file descriptors to the simulator.
diff --git a/simulator/wrapsim/FakeDev.h b/simulator/wrapsim/FakeDev.h
index 4781cfc..65f47ae 100644
--- a/simulator/wrapsim/FakeDev.h
+++ b/simulator/wrapsim/FakeDev.h
@@ -12,13 +12,14 @@
typedef struct FakeDev FakeDev;
-typedef int (*Fake_close)(FakeDev* dev, int);
-typedef ssize_t (*Fake_read)(FakeDev* dev, int, void*, size_t);
-typedef ssize_t (*Fake_readv)(FakeDev* dev, int, const struct iovec*, int);
-typedef ssize_t (*Fake_write)(FakeDev* dev, int, const void*, size_t);
-typedef ssize_t (*Fake_writev)(FakeDev* dev, int, const struct iovec*, int);
-typedef void* (*Fake_mmap)(FakeDev* dev, void*, size_t, int, int, int, __off_t);
-typedef int (*Fake_ioctl)(FakeDev* dev, int, int, void*);
+typedef int (*Fake_close)(FakeDev* dev, int);
+typedef FakeDev* (*Fake_dup)(FakeDev* dev, int);
+typedef ssize_t (*Fake_read)(FakeDev* dev, int, void*, size_t);
+typedef ssize_t (*Fake_readv)(FakeDev* dev, int, const struct iovec*, int);
+typedef ssize_t (*Fake_write)(FakeDev* dev, int, const void*, size_t);
+typedef ssize_t (*Fake_writev)(FakeDev* dev, int, const struct iovec*, int);
+typedef void* (*Fake_mmap)(FakeDev* dev, void*, size_t, int, int, int, __off_t);
+typedef int (*Fake_ioctl)(FakeDev* dev, int, int, void*);
/*
* An open fake device entry.
@@ -42,6 +43,7 @@
* All other file descriptor operations should fail, usually with EBADF.
*/
Fake_close close;
+ Fake_dup dup;
Fake_read read;
Fake_readv readv;
Fake_write write;