1 files changed, 1 insertions, 0 deletions
diff --git a/pk/file.h b/pk/file.h
index 3bf7f12..f761e28 100644
--- a/pk/file.h
+++ b/pk/file.h
@@ -23,6 +23,7 @@ file_t* file_open(const char* fn, int flags, int mode);
 void file_decref(file_t*);
 void file_incref(file_t*);
 int file_dup(file_t*);
+int file_dup3(file_t*, int newfd);
 
 file_t* file_openat(int dirfd, const char* fn, int flags, int mode);
 ssize_t file_pwrite(file_t* f, const void* buf, size_t n, off_t off);