.lf 1 ./man/man3/explain_getdomainname_or_die.3
.\"
.\" libexplain - Explain errno values returned by libc functions
.\" Copyright (C) 2009, 2011 Peter Miller
.\"
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.\" under the terms of the GNU General Public License as published by the
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.\" ofMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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.\"
.ds n) explain_getdomainname_or_die
.cp 0 \" Solaris defaults to ''.cp 1'', sheesh.
.TH explain_getdomainname_or_die 3
.SH NAME
explain_getdomainname_or_die \- get domain name and report errors
.if require_index \{
.XX "explain_getdomainname_or_die(3)" \
"get domain name and report errors"
.\}
.SH SYNOPSIS
#include
.sp 0.3
void explain_getdomainname_or_die(char *data, size_t data_size);
.br
int explain_getdomainname_on_error(char *data, size_t data_size);
.SH DESCRIPTION
The \f[B]explain_getdomainname_or_die\fP function is used to call the
\f[I]getdomainname\fP(2) system call. On failure an explanation will be
printed to \f[I]stderr\fP, obtained from the
\f[I]explain_getdomainname\fP(3) function, and then the process terminates
by calling \f[CW]exit(EXIT_FAILURE)\fP.
.PP
The \f[B]explain_getdomainname_on_error\fP function is used to call the
\f[I]getdomainname\fP(2) system call. On failure an explanation will be
printed to \f[I]stderr\fP, obtained from the
\f[I]explain_getdomainname\fP(3) function, but still returns to the caller.
.TP 8n
\f[I]data\fP
The data, exactly as to be passed to the \f[I]getdomainname\fP(2) system
call.
.TP 8n
\f[I]data_size\fP
The data_size, exactly as to be passed to the \f[I]getdomainname\fP(2)
system call.
.\" ----------------------------------------------------
.SH RETURN VALUE
The \f[B]explain_getdomainname_or_die\fP function only returns on success,
see \f[I]getdomainname\fP(2) for more information. On failure, prints an
explanation and exits, it does not return.
.PP
The \f[B]explain_getdomainname_on_error\fP function always returns the
value return by the wrapped \f[I]getdomainname\fP(2) system call.
.\" ----------------------------------------------------
.SH EXAMPLE
The \f[B]explain_getdomainname_or_die\fP function is intended to be used in
a fashion similar to the following example:
.RS
.ft CW
.nf
explain_getdomainname_or_die(data, data_size);
.fi
.ft R
.RE
.\" ----------------------------------------------------
.SH SEE ALSO
.TP 8n
\f[I]getdomainname\fP(2)
get domain name
.TP 8n
\f[I]explain_getdomainname\fP(3)
explain \f[I]getdomainname\fP(2) errors
.TP 8n
\f[I]exit\fP(2)
terminate the calling process
.\" ----------------------------------------------------
.SH COPYRIGHT
.lf 1 ./etc/version.so
.ds v) 1.4
.ds V) 1.4.D001
.ds Y) 2008, 2009, 2010, 2011, 2012, 2013, 2014
.lf 85 ./man/man3/explain_getdomainname_or_die.3
.if n .ds C) (C)
.if t .ds C) \(co
libexplain version \*(v)
.br
Copyright \*(C) 2009 Peter Miller
.\" vim: set ts=8 sw=4 et