SIMPLE SOLUTIONS

EXPLAIN_ENDGRENT_OR_DIE(3) - man page online | library functions

Finish group file accesses and report errors.

Chapter
explain_endgrent_or_die(3)           Library Functions Manual          explain_endgrent_or_die(3)

NAME

explain_endgrent_or_die - finish group file accesses and report errors

SYNOPSIS

#include <libexplain/endgrent.h> void explain_endgrent_or_die(void); void explain_endgrent_on_error(void);

DESCRIPTION

The explain_endgrent_or_die function is used to call the endgrent(3) system call. On fail‐ ure an explanation will be printed to stderr, obtained from the explain_endgrent(3) func‐ tion, and then the process terminates by calling exit(EXIT_FAILURE). The explain_endgrent_on_error function is used to call the endgrent(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_endgrent(3) function, but still returns to the caller.

RETURN VALUE

The explain_endgrent_or_die function only returns on success, see endgrent(3) for more information. On failure, prints an explanation and exits, it does not return. The explain_endgrent_on_error function always returns the value return by the wrapped end‐ grent(3) system call.

EXAMPLE

The explain_endgrent_or_die function is intended to be used in a fashion similar to the following example: explain_endgrent_or_die();

SEE ALSO

endgrent(3) finish group file accesses explain_endgrent(3) explain endgrent(3) errors exit(2) terminate the calling process
libexplain version 1.4 Copyright (C) 2013 Peter Miller
explain_endgrent_or_die(3)
This manual Reference Other manuals
explain_endgrent_or_die(3) referred by explain(3) | explain_endgrent(3)
refer to _exit(2) | explain_endgrent(3) | getgrent(3)