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.\" ========================================================================
.\"
.IX Title "Sys::Hostname 3perl"
.TH Sys::Hostname 3perl "2021-09-24" "perl v5.32.1" "Perl Programmers Reference Guide"
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.SH "NAME"
Sys::Hostname \- Try every conceivable way to get hostname
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 2
\&    use Sys::Hostname;
\&    $host = hostname;
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
Attempts several methods of getting the system hostname and
then caches the result.  It tries the first available of the C
library's \fBgethostname()\fR, \f(CW\*(C`\`$Config{aphostname}\`\*(C'\fR, \fBuname\fR\|(2),
\&\f(CW\*(C`syscall(SYS_gethostname)\*(C'\fR, \f(CW\*(C`\`hostname\`\*(C'\fR, \f(CW\*(C`\`uname \-n\`\*(C'\fR,
and the file \fI/com/host\fR.  If all that fails it \f(CW\*(C`croak\*(C'\fRs.
.PP
All NULs, returns, and newlines are removed from the result.
.SH "AUTHOR"
.IX Header "AUTHOR"
David Sundstrom <\fIsunds@asictest.sc.ti.com\fR>
.PP
Texas Instruments
.PP
\&\s-1XS\s0 code added by Greg Bacon <\fIgbacon@cs.uah.edu\fR>