OPEN(3spp)          RISC/os Reference Manual           OPEN(3spp)



NAME
     open - open a file for reading or writing

SYNOPSIS
     #include <sys/file.h>

     int open(path, flags)
     char *path;
     int flags;

DESCRIPTION
     Open opens the file path for reading and/or writing, as
     specified by the flags argument and returns a descriptor for
     that file.

     Path is the address of a string of ASCII characters
     representing a path name, terminated by a null character.
     The flags specified are formed by or'ing the following
     values

           O_RDONLY open for reading only
           O_WRONLY open for writing only
           O_RDWRD  open for reading and writing

     Upon successful completion, a non-negative integer termed a
     file descriptor is returned.  The file pointer used to mark
     the current position within the file is set to the beginning
     of the file.

     The system imposes a limit on the number of file descriptors
     open simultaneously, currently the limit is 10.

SEE ALSO
     close(3spp), lseek(3spp), read(3spp), write(3spp)





















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