OPENTEMP 3
 NAME
opentemp - create and open a uniquely-named file

 SYNOPSIS
 #include <u.h> 

 #include <libc.h> 

 int opentemp(char *template, int mode)

 DESCRIPTION
 Opentemp replaces
 template by a unique file name, and returns the
address of the template.
The template should look like a file name with eleven trailing
.LR X s.
The
.LR X s
are replaced by a letter followed by the current process id.
Letters from
.L a
to
.L z
are tried until the name of a file that does not yet exist
(see
.MR access (2) )
is generated.
 Opentemp then opens the file for the given
 mode and returns the file descriptor.
Most calls should use a mode
of
 ORDWR|ORCLOSE . 

If no such name can be generated,
 opentemp returns -1.


 Opentemp avoids races.
Two simultaneous calls to
 opentemp will never return the same name.

 SOURCE
 \*9/src/lib9/opentemp.c 
 "SEE ALSO
 create in
.MR open (3)