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+.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved 
+.TH "MKSTEMP" 3P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
+.\" mkstemp 
+.SH PROLOG
+This manual page is part of the POSIX Programmer's Manual.
+The Linux implementation of this interface may differ (consult
+the corresponding Linux manual page for details of Linux behavior),
+or the interface may not be implemented on Linux.
+.SH NAME
+mkstemp \- make a unique filename
+.SH SYNOPSIS
+.LP
+\fB#include <stdlib.h>
+.br
+.sp
+int mkstemp(char *\fP\fItemplate\fP\fB); \fP
+\fB
+.br
+\fP
+.SH DESCRIPTION
+.LP
+The \fImkstemp\fP() function shall replace the contents of the string
+pointed to by \fItemplate\fP by a unique filename, and
+return a file descriptor for the file open for reading and writing.
+The function thus prevents any possible race condition between
+testing whether the file exists and opening it for use. The string
+in \fItemplate\fP should look like a filename with six trailing
+\fB'X'\fP s; \fImkstemp\fP() replaces each \fB'X'\fP with a character
+from the portable filename character set. The
+characters are chosen such that the resulting name does not duplicate
+the name of an existing file at the time of a call to
+\fImkstemp\fP().
+.SH RETURN VALUE
+.LP
+Upon successful completion, \fImkstemp\fP() shall return an open file
+descriptor. Otherwise, -1 shall be returned if no
+suitable file could be created.
+.SH ERRORS
+.LP
+No errors are defined.
+.LP
+\fIThe following sections are informative.\fP
+.SH EXAMPLES
+.SS Generating a Filename
+.LP
+The following example creates a file with a 10-character name beginning
+with the characters \fB"file"\fP and opens the file
+for reading and writing. The value returned as the value of \fIfd\fP
+is a file descriptor that identifies the file.
+.sp
+.RS
+.nf
+
+\fB#include <stdlib.h>
+\&...
+char template[] = "/tmp/fileXXXXXX";
+int fd;
+.sp
+
+fd = mkstemp(template);
+\fP
+.fi
+.RE
+.SH APPLICATION USAGE
+.LP
+It is possible to run out of letters.
+.LP
+The \fImkstemp\fP() function need not check to determine whether the
+filename part of \fItemplate\fP exceeds the maximum
+allowable filename length.
+.SH RATIONALE
+.LP
+None.
+.SH FUTURE DIRECTIONS
+.LP
+None.
+.SH SEE ALSO
+.LP
+\fIgetpid\fP(), \fIopen\fP(), \fItmpfile\fP(),
+\fItmpnam\fP(), the Base Definitions volume of IEEE\ Std\ 1003.1-2001,
+\fI<stdlib.h>\fP
+.SH COPYRIGHT
+Portions of this text are reprinted and reproduced in electronic form
+from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
+-- Portable Operating System Interface (POSIX), The Open Group Base
+Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
+Electrical and Electronics Engineers, Inc and The Open Group. In the
+event of any discrepancy between this version and the original IEEE and
+The Open Group Standard, the original IEEE and The Open Group Standard
+is the referee document. The original Standard can be obtained online at
+http://www.opengroup.org/unix/online.html .