debian man page for open_write

open_write(3)						     Library Functions Manual						     open_write(3)

NAME
       open_write - open a file for writing

SYNTAX
       #include <open.h>

       int open_write(const char *filename);

DESCRIPTION
       open_write  opens  the  file  filename for write-only use and returns the file handle.  If the file does not exist, it will be created with
       mode 0644.  If there was an error opening or creating the file, open_write returns -1 and sets errno accordingly.

SEE ALSO
       open(2)

																     open_write(3)