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by Francesco Paolo Lovergine
rules: linking manpages-posix not manpages. |
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.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved |
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by Francesco Paolo Lovergine
* Alligned to linux main manpages edition. |
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.TH "MKTEMP" P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual" |
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by Francesco Paolo Lovergine
rules: linking manpages-posix not manpages. |
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.\" mktemp |
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.SH NAME |
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mktemp \- make a unique filename (\fBLEGACY\fP) |
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.SH SYNOPSIS |
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.LP
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\fB#include <stdlib.h>
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.br
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.sp
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char *mktemp(char *\fP\fItemplate\fP\fB); \fP |
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\fB
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.br
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\fP
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.SH DESCRIPTION |
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.LP
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The \fImktemp\fP() function shall replace the contents of the string |
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pointed to by \fItemplate\fP by a unique filename and |
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return \fItemplate\fP. The application shall initialize \fItemplate\fP |
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to be a filename with six trailing \fB'X'\fP s; |
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\fImktemp\fP() shall replace each \fB'X'\fP with a single byte character |
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from the portable filename character set. |
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.SH RETURN VALUE |
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.LP
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The \fImktemp\fP() function shall return the pointer \fItemplate\fP. |
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If a unique name cannot be created, \fItemplate\fP shall |
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point to a null string. |
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.SH ERRORS |
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.LP
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No errors are defined. |
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.LP
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\fIThe following sections are informative.\fP |
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.SH EXAMPLES |
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.SS Generating a Filename |
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.LP
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The following example replaces the contents of the \fB"template"\fP |
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string with a 10-character filename beginning with the |
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characters \fB"file"\fP and returns a pointer to the \fB"template"\fP |
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string that contains the new filename. |
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.sp
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.RS
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.nf
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\fB#include <stdlib.h>
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\&...
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char *template = "/tmp/fileXXXXXX"; |
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char *ptr; |
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.sp
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ptr = mktemp(template); |
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\fP
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.fi
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.RE
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.SH APPLICATION USAGE |
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.LP
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Between the time a pathname is created and the file opened, it is |
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possible for some other process to create a file with the same |
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name. The \fImkstemp\fP() function avoids this problem and is preferred |
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over this |
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function. |
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.SH RATIONALE |
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.LP
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None. |
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.SH FUTURE DIRECTIONS |
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.LP
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This function may be withdrawn in a future version. |
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.SH SEE ALSO |
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.LP
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\fImkstemp\fP() , \fItmpfile\fP() , \fItmpnam\fP() , the Base Definitions |
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volume of IEEE\ Std\ 1003.1-2001, \fI<stdlib.h>\fP |
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.SH COPYRIGHT |
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Portions of this text are reprinted and reproduced in electronic form |
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from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology |
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-- Portable Operating System Interface (POSIX), The Open Group Base |
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Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of |
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Electrical and Electronics Engineers, Inc and The Open Group. In the |
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event of any discrepancy between this version and the original IEEE and |
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The Open Group Standard, the original IEEE and The Open Group Standard |
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is the referee document. The original Standard can be obtained online at |
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http://www.opengroup.org/unix/online.html . |