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diff --git a/man-pages-posix-2013/man3p/tmpnam.3p b/man-pages-posix-2013/man3p/tmpnam.3p new file mode 100644 index 0000000..3978390 --- /dev/null +++ b/man-pages-posix-2013/man3p/tmpnam.3p @@ -0,0 +1,146 @@ +'\" et +.TH TMPNAM "3P" 2013 "IEEE/The Open Group" "POSIX Programmer's Manual" +.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 +tmpnam +\(em create a name for a temporary file +.SH SYNOPSIS +.LP +.nf +#include <stdio.h> +.P +char *tmpnam(char *\fIs\fP); +.fi +.SH DESCRIPTION +The functionality described on this reference page is aligned with the +ISO\ C standard. Any conflict between the requirements described here and the +ISO\ C standard is unintentional. This volume of POSIX.1\(hy2008 defers to the ISO\ C standard. +.P +The +\fItmpnam\fR() +function shall generate a string that is a valid pathname that does not +name an existing file. The function is potentially capable of generating +{TMP_MAX} +different strings, but any or all of them may already be in use by +existing files and thus not be suitable return values. +.P +The +\fItmpnam\fR() +function generates a different string each time it is called from the +same process, up to +{TMP_MAX} +times. If it is called more than +{TMP_MAX} +times, the behavior is implementation-defined. +.P +The implementation shall behave as if no function defined in this volume of POSIX.1\(hy2008, +except +\fItempnam\fR(), +calls +\fItmpnam\fR(). +.P +The +\fItmpnam\fR() +function need not be thread-safe if called with a NULL parameter. +.SH "RETURN VALUE" +Upon successful completion, +\fItmpnam\fR() +shall return a pointer to a string. If no suitable string can be +generated, the +\fItmpnam\fR() +function shall return a null pointer. +.P +If the argument +.IR s +is a null pointer, +\fItmpnam\fR() +shall leave its result in an internal static object and return a +pointer to that object. Subsequent calls to +\fItmpnam\fR() +may modify the same object. If the argument +.IR s +is not a null pointer, it is presumed to point to an array of at least +L_tmpnam +.BR char s; +\fItmpnam\fR() +shall write its result in that array and shall return the argument +as its value. +.SH ERRORS +No errors are defined. +.LP +.IR "The following sections are informative." +.SH EXAMPLES +.SS "Generating a Pathname" +.P +The following example generates a unique pathname and stores it in the +array pointed to by +.IR ptr . +.sp +.RS 4 +.nf +\fB +#include <stdio.h> +\&... +char pathname[L_tmpnam+1]; +char *ptr; +.P +ptr = tmpnam(pathname); +.fi \fR +.P +.RE +.SH "APPLICATION USAGE" +This function only creates pathnames. It is the application's +responsibility to create and remove the files. +.P +Between the time a pathname is created and the file is opened, it is +possible for some other process to create a file with the same name. +Applications may find +\fItmpfile\fR() +more useful. +.P +Applications should use the +\fItmpfile\fR(), +\fImkstemp\fR(), +or +\fImkdtemp\fR() +functions instead of the obsolescent +\fItmpnam\fR() +function. +.SH RATIONALE +None. +.SH "FUTURE DIRECTIONS" +The +\fItmpnam\fR() +function may be removed in a future version. +.SH "SEE ALSO" +.IR "\fIfopen\fR\^(\|)", +.IR "\fIopen\fR\^(\|)", +.IR "\fImkdtemp\fR\^(\|)", +.IR "\fItempnam\fR\^(\|)", +.IR "\fItmpfile\fR\^(\|)", +.IR "\fIunlink\fR\^(\|)" +.P +The Base Definitions volume of POSIX.1\(hy2008, +.IR "\fB<stdio.h>\fP" +.SH COPYRIGHT +Portions of this text are reprinted and reproduced in electronic form +from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology +-- Portable Operating System Interface (POSIX), The Open Group Base +Specifications Issue 7, Copyright (C) 2013 by the Institute of +Electrical and Electronics Engineers, Inc and The Open Group. +(This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) 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.unix.org/online.html . + +Any typographical or formatting errors that appear +in this page are most likely +to have been introduced during the conversion of the source files to +man page format. To report such errors, see +https://www.kernel.org/doc/man-pages/reporting_bugs.html . |