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.TH TMPFILE 2
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.SH NAME
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tmpfile, tmpnam \- Stdio temporary files
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.SH SYNOPSIS
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.B #include <u.h>
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.br
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.B #include <stdio.h>
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.PP
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.ta \w'\fLFILE 'u
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.B
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FILE	*tmpfile(void)
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.PP
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.B
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char	*tmpnam(char *s)
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.SH DESCRIPTION
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.I Tmpfile
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creates a temporary file that will automatically
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be removed when the file is closed or the program exits.
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The return value is a Stdio
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.B FILE*
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opened in update mode (see
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.IR fopen (2)).
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.PP
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.I Tmpnam
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generates a string that is a valid file name and that is not
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the same as the name of an existing file.
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If
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.I s
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is zero, it returns a pointer to a string which may be overwritten by
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subsequent calls to
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.IR tmpnam .
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If
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.I s
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is non-zero, it should point to an array of at least
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.B L_tmpnam
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(defined in
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.BR <stdio.h> )
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characters, and the answer will be copied there.
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.SH FILES
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.TF /tmp/tf000000000000
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.TP
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.B /tmp/tf000000000000
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template for
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.I tmpfile
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file names.
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.TP
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.B /tmp/tn000000000000
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template for
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.I tmpnam
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file names.
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.SH SOURCE
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.B /sys/src/libstdio
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.SH BUGS
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The files created by
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.I tmpfile
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are not removed until
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.IR exits (2)
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is executed; in particular, they are not removed on
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.I fclose
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or if the program terminates abnormally.