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Add tmpnam(3).

This commit is contained in:
Jonas 'Sortie' Termansen 2013-04-22 11:37:29 +02:00
parent 881776f72b
commit 28a4fe477b
3 changed files with 47 additions and 2 deletions
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1
libc/Makefile
View File

@ -344,6 +344,7 @@ system.o \
tfork.o \
time.o \
tmpfile.o \
tmpnam.o \
truncateat.o \
truncate.o \
ttyname.o \

7
libc/include/stdio.h
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@ -44,7 +44,7 @@ typedef off_t fpos_t;
/* TODO: Implement L_ctermid */
#if __POSIX_OBSOLETE <= 200801
/* TODO: Implement L_tmpnam */
#define L_tmpnam 128
#endif
/* The possibilities for the third argument to `setvbuf'. */
@ -128,6 +128,10 @@ extern int vsnprintf(char* __restrict, size_t, const char* __restrict, __gnuc_va
extern int vsprintf(char* __restrict s, const char* __restrict format, __gnuc_va_list ap);
extern int vsscanf(const char* __restrict s, const char* __restrict format, __gnuc_va_list arg);
#if __POSIX_OBSOLETE <= 200801
extern char* tmpnam(char* s);
#endif
/* TODO: These are not implemented in sortix libc yet. */
#if defined(__SORTIX_SHOW_UNIMPLEMENTED)
extern char* ctermid(char* s);
@ -144,7 +148,6 @@ extern void flockfile(FILE* file);
extern void funlockfile(FILE* file);
#if __POSIX_OBSOLETE <= 200801
extern char* tmpnam(char* s);
extern char* tempnam(const char* dir, const char* pfx);
#endif
#endif

41
libc/tmpnam.cpp Normal file
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@ -0,0 +1,41 @@
/*******************************************************************************
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;
}