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sortix--sortix/libc/tmpnam.cpp

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2013-04-22 05:37:29 -04:00
/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2013.
This file is part of the Sortix C Library.
The Sortix C Library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at your
option) any later version.
The Sortix C Library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
tmpnam.cpp
Create path names for temporary files.
*******************************************************************************/
#include <stdio.h>
#include <stdint.h>
#include <unistd.h>
// TODO: Please remove this function and P_tmpdir and L_tmpnam once they have
// been removed from the C, C++ and POSIX standards.
extern "C" char* tmpnam(char* s)
{
static char static_string[L_tmpnam+1];
if ( !s )
s = static_string;
static int current_index = 0;
// TODO: This isn't thread safe!
snprintf(s, L_tmpnam, "%s/tmpnam.pid%ju.%i", P_tmpdir, (uintmax_t) getpid(),
current_index++);
return s;
}