Update of /cvsroot/libsysio/libsysio/src
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv4119
Added Files:
stddir.c
Log Message:
Changes to officially import directory functions into sysio. This is
necessitated by the glibc >= 2.3 hidden attribute on getdents. (ifdef'd out
for Red Storm build)
--- NEW FILE ---
/*
* This 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 2.1 of the License, or (at your option) any later version.
*
* This 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 this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifdef __linux__
#include <features.h>
#if defined(__GLIBC__) && !defined(REDSTORM)
/*
* stddir.c
*
* As of glibc 2.3, the new capability to define functions with a 'hidden'
* attribute means that any time glibc decides to use that capability
* we will no longer be able to successfully intercept low level calls
* in a link against default system glibc. Thus the following imported
* functions.
*/
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <dirent.h>
#include <sysio.h>
#include "sysio-symbols.h"
#include "stddir.h"
/***********************************************************
* dir series functions *
***********************************************************/
DIR*
SYSIO_INTERFACE_NAME(opendir)(const char *name)
{
DIR *dir;
SYSIO_INTERFACE_DISPLAY_BLOCK;
SYSIO_INTERFACE_ENTER;
dir = (DIR * )calloc(1, sizeof(DIR));
if (!dir)
SYSIO_INTERFACE_RETURN(NULL, -ENOMEM);
dir->fd = open(name, O_RDONLY);
if (dir->fd < 0) {
free(dir);
SYSIO_INTERFACE_RETURN(NULL, -errno);
}
return dir;
}
sysio_sym_weak_alias(opendir, __opendir)
int
SYSIO_INTERFACE_NAME(closedir)(DIR *dir)
{
int rc;
SYSIO_INTERFACE_DISPLAY_BLOCK;
SYSIO_INTERFACE_ENTER;
rc = SYSIO_INTERFACE_NAME(close)(dir->fd);
free(dir);
SYSIO_INTERFACE_RETURN(rc, 0);
}
sysio_sym_weak_alias(SYSIO_INTERFACE_NAME(closedir),
PREPEND(__, SYSIO_INTERFACE_NAME(closedir)))
int
SYSIO_INTERFACE_NAME(dirfd)(DIR *dir)
{
return(dir->fd);
}
long int
SYSIO_INTERFACE_NAME(telldir)(DIR *dir)
{
return(dir->filepos);
}
void
SYSIO_INTERFACE_NAME(seekdir)(DIR *dir, long int offset)
{
dir->filepos = offset;
dir->base = offset;
dir->effective = 0;
dir->cur = 0;
}
void
SYSIO_INTERFACE_NAME(rewinddir)(DIR *dir)
{
dir->base = 0;
dir->filepos = 0;
dir->cur = 0;
dir->effective = 0;
}
#endif
#endif
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