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Annotation of 43BSDTahoe/man/man3/mktemp.3, revision 1.1.1.1

1.1       root        1: .\"    @(#)mktemp.3    6.3 (Berkeley) 4/10/87
                      2: .\"
                      3: .TH MKTEMP 3  "April 10, 1987"
                      4: .AT 3
                      5: .SH NAME
                      6: mktemp \- make a unique file name
                      7: .SH SYNOPSIS
                      8: .nf
                      9: .B char *mktemp(template)
                     10: .B char *template;
                     11: .sp
                     12: .B mkstemp(template)
                     13: .B char *template;
                     14: .fi
                     15: .SH DESCRIPTION
                     16: \fIMktemp\fP creates a unique file name and returns the address of
                     17: the template.  The template should contain a file name with trailing
                     18: \fIX\fP's, normally something like \fI/tmp/tempXXXXXX\fP.  The \fIX\fP's
                     19: are replaced by the current process number and/or a unique letter
                     20: combination.  \fIMkstemp\fP makes the same replacement to the template
                     21: but opens the template file and returns a file descriptor open for
                     22: reading and writing.  \fIMkstemp\fP avoids the race between testing
                     23: whether the file exists and opening it for use.  The number of file
                     24: name combinations \fImktemp\fP and \fImkstemp\fP will try depends on
                     25: the number of \fIX\fP's placed on the end of the template; six \fIX\fP's
                     26: will result in them trying roughly 26 ** 6 combinations.
                     27: .SH "SEE ALSO"
                     28: access(2), getpid(2), open(2)
                     29: .SH DIAGNOSTICS
                     30: \fIMktemp\fP returns NULL on failure, \fImkstemp\fP returns -1 if no
                     31: suitable file could be created.

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