.TH MKTEMP 3
.CT 2 file_inq_creat
.SH NAME
mktemp, tmpnam \(mi make a unique file name
.SH SYNOPSIS
.nf
.B char *mktemp(template)
.B char *template;
.PP
.B #include <tmpnam.h>
.PP
.B char *tmpnam(s)
.B char s[L_tmpnam];
.fi
.SH DESCRIPTION
.I Mktemp
replaces
.I template
by a unique file name, and returns the
address of the template.
The template should look like a file name with six trailing
.LR X s,
which will be replaced with the
current process id and a unique letter.
.PP
.I Tmpnam
places in the string pointed to by
.I s
a unique file name referring to the standard
.F /tmp
directory for temporary files and returns
.I s.
If
.I s
is 0,
.I tmpnam
returns the address of a fixed internal buffer that contains the name.
(Note: it is bad form to leave files in the temporary directory.)
.SH "SEE ALSO"
.IR getpid " in"
.IR getuid (2)
.SH BUGS
After many calls to
.IR tmpnam ,
the resulting filenames may have strange characters.