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/*
* Copyright (C) 2000-2008 by CERN/IT/PDP/DM
* All rights reserved
*/
#ifndef lint
static char sccsid[] = "@(#)$RCSfile: Cgrp.c,v $ $Revision: 1.3 $ $Date: 2008/01/29 15:04:41 $ CERN IT-PDP/DM Jean-Damien Durand";
#endif /* not lint */
/*
* Cgrp.c - CASTOR MT-safe wrappers on some grp routines.
*/
#include <stdio.h>
#include <sys/types.h>
#include <grp.h>
#include <Cglobals.h>
#include <serrno.h>
#include <Cgrp.h>
#include <osdep.h>
struct group DLL_DECL *Cgetgrnam(name)
CONST char *name;
{
#if (!defined(_REENTRANT) && !defined(_THREAD_SAFE))
/*
* If single-threaded compilation we don't do anything.
*/
return(getgrnam(name));
#elif (defined(_WIN32))
return(getgrnam((char *) name));
#elif defined(linux) || (defined(__osf__) && defined(__alpha)) || \
(defined(SOLARIS) && defined(_POSIX_PTHREAD_SEMANTICS)) || \
defined(AIX42) || defined(IRIX6) || defined(HPUX11) || \
defined( __APPLE__)
/*
* The final POSIX.1c standard: the return value is int and
* buffer pointer is returned as last argument
*/
static int grp_key = -1;
static int grpbuf_key = -1;
struct group *grp = NULL;
struct group *result = NULL;
char *grpbuf = NULL;
size_t grpbuflen = BUFSIZ;
int rc;
Cglobals_get(&grp_key,(void **)&grp,sizeof(struct group));
Cglobals_get(&grpbuf_key,(void **)&grpbuf,grpbuflen);
if ( grp == NULL || grpbuf == NULL ) {
serrno = SEINTERNAL;
return(NULL);
}
rc = getgrnam_r(name,grp,grpbuf,grpbuflen,&result);
return(result);
#elif defined(HPUX10)
static int grp_key = -1;
static int grpbuf_key = -1;
struct group *grp = NULL;
struct group *result = NULL;
char *grpbuf = NULL;
size_t grpbuflen = BUFSIZ;
int rc;
Cglobals_get(&grp_key,(void **)&grp,sizeof(struct group));
Cglobals_get(&grpbuf_key,(void **)&grpbuf,grpbuflen);
if ( grp == NULL || grpbuf == NULL ) {
serrno = SEINTERNAL;
return(NULL);
}
rc = getgrnam_r(name,grp,grpbuf,grpbuflen);
if ( rc == 0 ) result = grp;
return(result);
#else
/*
* The POSIX.1c draft 6 standard: the return value is the result pointer.
*/
static int grp_key = -1;
static int grpbuf_key = -1;
struct group *grp = NULL;
struct group *result = NULL;
char *grpbuf = NULL;
size_t grpbuflen = BUFSIZ;
int rc;
Cglobals_get(&grp_key,(void **)&grp,sizeof(struct group));
Cglobals_get(&grpbuf_key,(void **)&grpbuf,grpbuflen);
if ( grp == NULL || grpbuf == NULL ) {
serrno = SEINTERNAL;
return(NULL);
}
result = getgrnam_r(name,grp,grpbuf,grpbuflen);
return(result);
#endif
}
struct group DLL_DECL *Cgetgrgid(gid)
gid_t gid;
{
#if (!defined(_REENTRANT) && !defined(_THREAD_SAFE))
/*
* If single-threaded compilation we don't do anything.
*/
return(getgrgid(gid));
#elif (defined(_WIN32))
return(getgrgid(gid));
#elif defined(linux) || (defined(__osf__) && defined(__alpha)) || \
(defined(SOLARIS) && defined(_POSIX_PTHREAD_SEMANTICS)) || \
defined(AIX42) || defined(IRIX6) || defined(HPUX11) || \
defined( __APPLE__)
/*
* The final POSIX.1c standard: the return value is int and
* buffer pointer is returned as last argument
*/
static int grp_key = -1;
static int grpbuf_key = -1;
struct group *grp = NULL;
struct group *result = NULL;
char *grpbuf = NULL;
size_t grpbuflen = BUFSIZ;
int rc;
Cglobals_get(&grp_key,(void **)&grp,sizeof(struct group));
Cglobals_get(&grpbuf_key,(void **)&grpbuf,grpbuflen);
if ( grp == NULL || grpbuf == NULL ) {
serrno = SEINTERNAL;
return(NULL);
}
rc = getgrgid_r(gid,grp,grpbuf,grpbuflen,&result);
return(result);
#elif defined(hpux) || defined(HPUX10)
static int grp_key = -1;
static int grpbuf_key = -1;
struct group *grp = NULL;
struct group *result = NULL;
char *grpbuf = NULL;
size_t grpbuflen = BUFSIZ;
int rc;
Cglobals_get(&grp_key,(void **)&grp,sizeof(struct group));
Cglobals_get(&grpbuf_key,(void **)&grpbuf,grpbuflen);
if ( grp == NULL || grpbuf == NULL ) {
serrno = SEINTERNAL;
return(NULL);
}
rc = getgrgid_r(gid,grp,grpbuf,grpbuflen);
if ( rc == 0 ) result = grp;
return(result);
#else
/*
* The POSIX.1c draft 6 standard: the return value is the result pointer.
*/
static int grp_key = -1;
static int grpbuf_key = -1;
struct group *grp = NULL;
struct group *result = NULL;
char *grpbuf = NULL;
size_t grpbuflen = BUFSIZ;
int rc;
Cglobals_get(&grp_key,(void **)&grp,sizeof(struct group));
Cglobals_get(&grpbuf_key,(void **)&grpbuf,grpbuflen);
if ( grp == NULL || grpbuf == NULL ) {
serrno = SEINTERNAL;
return(NULL);
}
result = getgrgid_r(gid,grp,grpbuf,grpbuflen);
return(result);
#endif
}
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