1 files changed, 3 insertions, 0 deletions
diff --git a/lib/libc/include/unistd.h b/lib/libc/include/unistd.h
index 34fbf69..2293066 100644
--- a/lib/libc/include/unistd.h
+++ b/lib/libc/include/unistd.h
@@ -63,6 +63,9 @@ off_t lseek(int fildes, off_t offset, int whence);
 int unlinkat(int dirfd, const char *pathname, int flags);
 int unlink(const char *path);
 
+int dup(int fd);
+int dup2(int fd, int fd1);
+
 pid_t getpid(void);
 pid_t getppid(void);
 pid_t fork(void);