dup.md

Syscall dup

User Mode

#include <unistd.h>
int dup(int fd);

Duplicate open file descriptor.

Kernel Mode

Implemented in sys_file.c as sys_dub().

See also

Overview: syscalls

File Management Syscalls: mkdir | rmdir | get_dirent | mknod | open | close | read | write | lseek | dup | link | unlink | fstat