NAME

open_parsed_name - return given file descriptor, or opened file

SYNOPSIS

#include <limb/djbunix.h>

typedef int (*open_fn) (const char *file)

int open_parsed_name(const char *name, open_fn open)

DESCRIPTION

The open_parsed_name() function parses name which is either a file name, or a file descriptor.

In the later case, it must begins with a plus-sign (+) before the number of the file descriptor, which will be returned.

In the former case, the file name will simply be passed to open which shall open said file and return the resulting file descriptor, or -1 in case of error, setting errno to indicate the error..

To specify a file whose name begins with a plus sign, simply use two plus-signs as beginning of the file.

RETURN VALUE

Upon successful completion, this function return the specified file descriptor, or the file descriptor of the opened file. Otherwise, it returns -1 and sets errno to indicate the error.

ERRORS

This function may fail for the errors described for u16_scan0(3) (when parsing the file descriptor), or those for open.