open_read(3) [debian man page]

open_read(3)						     Library Functions Manual						      open_read(3)

NAME

       open_read - open a file for reading

SYNTAX

       #include <open.h>

       int open_read(const char *filename);

DESCRIPTION

       open_read  opens  the  file filename for reading and returns the file handle.  If there was an error opening the file, open_read returns -1
       and sets errno accordingly.

SEE ALSO

       open(2)

																      open_read(3)

FOPEN(3S)																 FOPEN(3S)

NAME

       fopen, freopen, fdopen - open a stream

SYNOPSIS

       #include <stdio.h>

       FILE *fopen(filename, type)
       char *filename, *type;

       FILE *freopen(filename, type, stream)
       char *filename, *type;
       FILE *stream;

       FILE *fdopen(fildes, type)
       char *type;

DESCRIPTION

       Fopen  opens the file named by filename and associates a stream with it.  Fopen returns a pointer to be used to identify the stream in sub-
       sequent operations.

       Type is a character string having one of the following values:

       "r"  open for reading

       "w"  create for writing

       "a"  append: open for writing at end of file, or create for writing

       Freopen substitutes the named file in place of the open stream.	It returns the original value of stream.  The original stream is closed.

       Freopen is typically used to attach the preopened constant names, stdin, stdout, stderr, to specified files.

       Fdopen associates a stream with a file descriptor obtained from open, dup, creat, or pipe(2).  The type of the stream must agree  with  the
       mode of the open file.

SEE ALSO

       open(2), fclose(3)

DIAGNOSTICS

       Fopen and freopen return the pointer NULL if filename cannot be accessed.

BUGS

       Fdopen is not portable to systems other than UNIX.

																	 FOPEN(3S)