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+/* $Xorg: Xos_r.h,v 1.4 2001/02/09 02:03:22 xorgcvs Exp $ */
+/* $XdotOrg: xc/include/Xos_r.h,v 1.5 2005/07/13 07:23:56 keithp Exp $ */
+/*
+Copyright 1996, 1998 The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+*/
+/* $XFree86: xc/include/Xos_r.h,v 1.18tsi Exp $ */
+
+/*
+ * Various and sundry Thread-Safe functions used by X11, Motif, and CDE.
+ *
+ * Use this file in MT-safe code where you would have included
+ * <dirent.h> for readdir()
+ * <grp.h> for getgrgid() or getgrnam()
+ * <netdb.h> for gethostbyname(), gethostbyaddr(), or getservbyname()
+ * <pwd.h> for getpwnam() or getpwuid()
+ * <string.h> for strtok()
+ * <time.h> for asctime(), ctime(), localtime(), or gmtime()
+ * <unistd.h> for getlogin() or ttyname()
+ * or their thread-safe analogs.
+ *
+ * If you are on a platform that defines XTHREADS but does not have
+ * MT-safe system API (e.g. UnixWare) you must define _Xos_processLock
+ * and _Xos_processUnlock macros before including this header. If
+ * you are on OSF/1 V3.2 and plan to use readdir(), you must also define
+ * _Xos_isThreadsInitialized. For convenience XOS_USE_XLIB_LOCKING or
+ * XOS_USE_XT_LOCKING may be defined to obtain either Xlib-only or
+ * Xt-based versions of these macros. These macros won't result in
+ * truly thread-safe calls, but they are better than nothing. If you
+ * do not want locking in this situation define XOS_USE_NO_LOCKING.
+ *
+ * NOTE: On systems lacking approriate _r functions Gethostbyname(),
+ * Gethostbyaddr(), and Getservbyname() do NOT copy the host or
+ * protocol lists!
+ *
+ * NOTE: On systems lacking appropriate _r functions Getgrgid() and
+ * Getgrnam() do NOT copy the list of group members!
+ *
+ * This header is nominally intended to simplify porting X11, Motif, and
+ * CDE; it may be useful to other people too. The structure below is
+ * complicated, mostly because P1003.1c (the IEEE POSIX Threads spec)
+ * went through lots of drafts, and some vendors shipped systems based
+ * on draft API that were changed later. Unfortunately POSIX did not
+ * provide a feature-test macro for distinguishing each of the drafts.
+ */
+
+/*
+ * This header has several parts. Search for "Effective prototypes"
+ * to locate the beginning of a section.
+ */
+
+/* This header can be included multiple times with different defines! */
+#ifndef _XOS_R_H_
+# define _XOS_R_H_
+
+# include <X11/Xos.h>
+# include <X11/Xfuncs.h>
+
+# ifndef X_NOT_POSIX
+# ifdef _POSIX_SOURCE
+# include <limits.h>
+# else
+# define _POSIX_SOURCE
+# include <limits.h>
+# undef _POSIX_SOURCE
+# endif
+# ifndef LINE_MAX
+# define X_LINE_MAX 2048
+# else
+# define X_LINE_MAX LINE_MAX
+# endif
+# endif
+#endif /* _XOS_R_H */
+
+#ifndef WIN32
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+# if defined(XOS_USE_XLIB_LOCKING)
+# ifndef XAllocIDs /* Xlibint.h does not have multiple include protection */
+typedef struct _LockInfoRec *LockInfoPtr;
+extern LockInfoPtr _Xglobal_lock;
+# endif
+# ifndef _Xos_isThreadInitialized
+# define _Xos_isThreadInitialized (_Xglobal_lock)
+# endif
+# if defined(XTHREADS_WARN) || defined(XTHREADS_FILE_LINE)
+# ifndef XAllocIDs /* Xlibint.h does not have multiple include protection */
+# include <X11/Xfuncproto.h> /* for NeedFunctionPrototypes */
+extern void (*_XLockMutex_fn)(
+# if NeedFunctionPrototypes
+ LockInfoPtr /* lock */, char * /* file */, int /* line */
+# endif
+);
+extern void (*_XUnlockMutex_fn)(
+# if NeedFunctionPrototypes
+ LockInfoPtr /* lock */, char * /* file */, int /* line */
+# endif
+);
+# endif
+# ifndef _Xos_processLock
+# define _Xos_processLock \
+ (_XLockMutex_fn ? (*_XLockMutex_fn)(_Xglobal_lock,__FILE__,__LINE__) : 0)
+# endif
+# ifndef _Xos_processUnlock
+# define _Xos_processUnlock \
+ (_XUnlockMutex_fn ? (*_XUnlockMutex_fn)(_Xglobal_lock,__FILE__,__LINE__) : 0)
+# endif
+# else
+# ifndef XAllocIDs /* Xlibint.h does not have multiple include protection */
+# include <X11/Xfuncproto.h> /* for NeedFunctionPrototypes */
+extern void (*_XLockMutex_fn)(
+# if NeedFunctionPrototypes
+ LockInfoPtr /* lock */
+# endif
+);
+extern void (*_XUnlockMutex_fn)(
+# if NeedFunctionPrototypes
+ LockInfoPtr /* lock */
+# endif
+);
+# endif
+# ifndef _Xos_processLock
+# define _Xos_processLock \
+ (_XLockMutex_fn ? ((*_XLockMutex_fn)(_Xglobal_lock), 0) : 0)
+# endif
+# ifndef _Xos_processUnlock
+# define _Xos_processUnlock \
+ (_XUnlockMutex_fn ? ((*_XUnlockMutex_fn)(_Xglobal_lock), 0) : 0)
+# endif
+# endif
+# elif defined(XOS_USE_XT_LOCKING)
+# ifndef _XtThreadsI_h
+extern void (*_XtProcessLock)(void);
+# endif
+# ifndef _XtintrinsicP_h
+# include <X11/Xfuncproto.h> /* for NeedFunctionPrototypes */
+extern void XtProcessLock(
+# if NeedFunctionPrototypes
+ void
+# endif
+);
+extern void XtProcessUnlock(
+# if NeedFunctionPrototypes
+ void
+# endif
+);
+# endif
+# ifndef _Xos_isThreadInitialized
+# define _Xos_isThreadInitialized _XtProcessLock
+# endif
+# ifndef _Xos_processLock
+# define _Xos_processLock XtProcessLock()
+# endif
+# ifndef _Xos_processUnlock
+# define _Xos_processUnlock XtProcessUnlock()
+# endif
+# elif defined(XOS_USE_NO_LOCKING)
+# ifndef _Xos_isThreadInitialized
+# define _Xos_isThreadInitialized 0
+# endif
+# ifndef _Xos_processLock
+# define _Xos_processLock 0
+# endif
+# ifndef _Xos_processUnlock
+# define _Xos_processUnlock 0
+# endif
+# endif
+
+#endif /* !defined WIN32 */
+
+/*
+ * Solaris defines the POSIX thread-safe feature test macro, but
+ * uses the older SVR4 thread-safe functions unless the POSIX ones
+ * are specifically requested. Fix the feature test macro.
+ */
+#if defined(sun) && defined(_POSIX_THREAD_SAFE_FUNCTIONS) && \
+ (_POSIX_C_SOURCE - 0 < 199506L) && !defined(_POSIX_PTHREAD_SEMANTICS)
+# undef _POSIX_THREAD_SAFE_FUNCTIONS
+#endif
+
+/*
+ * LynxOS 3.1 defines _POSIX_THREAD_SAFE_FUNCTIONS but
+ * getpwuid_r has different semantics than defined by POSIX
+ */
+#if defined(Lynx) && defined(_POSIX_THREAD_SAFE_FUNCTIONS)
+# undef _POSIX_THREAD_SAFE_FUNCTIONS
+#endif
+
+
+/***** <pwd.h> wrappers *****/
+
+/*
+ * Effective prototypes for <pwd.h> wrappers:
+ *
+ * #define X_INCLUDE_PWD_H
+ * #define XOS_USE_..._LOCKING
+ * #include <X11/Xos_r.h>
+ *
+ * typedef ... _Xgetpwparams;
+ *
+ * struct passwd* _XGetpwnam(const char *name, _Xgetpwparams);
+ * struct passwd* _XGetpwuid(uid_t uid, _Xgetpwparams);
+ */
+
+#if defined(X_INCLUDE_PWD_H) && !defined(_XOS_INCLUDED_PWD_H)
+# include <pwd.h>
+# if defined(XUSE_MTSAFE_API) || defined(XUSE_MTSAFE_PWDAPI)
+# define XOS_USE_MTSAFE_PWDAPI 1
+# endif
+#endif
+
+#undef X_NEEDS_PWPARAMS
+#if !defined(X_INCLUDE_PWD_H) || defined(_XOS_INCLUDED_PWD_H)
+/* Do nothing */
+
+#elif !defined(XTHREADS) && !defined(X_FORCE_USE_MTSAFE_API)
+/* Use regular, unsafe API. */
+# if defined(X_NOT_POSIX) && !defined(i386) && !defined(SYSV)
+extern struct passwd *getpwuid(), *getpwnam();
+# endif
+typedef int _Xgetpwparams; /* dummy */
+# define _XGetpwuid(u,p) getpwuid((u))
+# define _XGetpwnam(u,p) getpwnam((u))
+
+#elif !defined(XOS_USE_MTSAFE_PWDAPI) || defined(XNO_MTSAFE_PWDAPI)
+/* UnixWare 2.0, or other systems with thread support but no _r API. */
+# define X_NEEDS_PWPARAMS
+typedef struct {
+ struct passwd pws;
+ char pwbuf[1024];
+ struct passwd* pwp;
+ size_t len;
+} _Xgetpwparams;
+
+/*
+ * NetBSD and FreeBSD, at least, are missing several of the unixware passwd
+ * fields.
+ */
+
+#if defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__) || \
+ defined(__APPLE__) || defined(__DragonFly__)
+static __inline__ void _Xpw_copyPasswd(_Xgetpwparams p)
+{
+ memcpy(&(p).pws, (p).pwp, sizeof(struct passwd));
+
+ (p).pws.pw_name = (p).pwbuf;
+ (p).len = strlen((p).pwp->pw_name);
+ strcpy((p).pws.pw_name, (p).pwp->pw_name);
+
+ (p).pws.pw_passwd = (p).pws.pw_name + (p).len + 1;
+ (p).len = strlen((p).pwp->pw_passwd);
+ strcpy((p).pws.pw_passwd,(p).pwp->pw_passwd);
+
+ (p).pws.pw_class = (p).pws.pw_passwd + (p).len + 1;
+ (p).len = strlen((p).pwp->pw_class);
+ strcpy((p).pws.pw_class, (p).pwp->pw_class);
+
+ (p).pws.pw_gecos = (p).pws.pw_class + (p).len + 1;
+ (p).len = strlen((p).pwp->pw_gecos);
+ strcpy((p).pws.pw_gecos, (p).pwp->pw_gecos);
+
+ (p).pws.pw_dir = (p).pws.pw_gecos + (p).len + 1;
+ (p).len = strlen((p).pwp->pw_dir);
+ strcpy((p).pws.pw_dir, (p).pwp->pw_dir);
+
+ (p).pws.pw_shell = (p).pws.pw_dir + (p).len + 1;
+ (p).len = strlen((p).pwp->pw_shell);
+ strcpy((p).pws.pw_shell, (p).pwp->pw_shell);
+
+ (p).pwp = &(p).pws;
+}
+
+#else
+# define _Xpw_copyPasswd(p) \
+ (memcpy(&(p).pws, (p).pwp, sizeof(struct passwd)), \
+ ((p).pws.pw_name = (p).pwbuf), \
+ ((p).len = strlen((p).pwp->pw_name)), \
+ strcpy((p).pws.pw_name, (p).pwp->pw_name), \
+ ((p).pws.pw_passwd = (p).pws.pw_name + (p).len + 1), \
+ ((p).len = strlen((p).pwp->pw_passwd)), \
+ strcpy((p).pws.pw_passwd,(p).pwp->pw_passwd), \
+ ((p).pws.pw_age = (p).pws.pw_passwd + (p).len + 1), \
+ ((p).len = strlen((p).pwp->pw_age)), \
+ strcpy((p).pws.pw_age, (p).pwp->pw_age), \
+ ((p).pws.pw_comment = (p).pws.pw_age + (p).len + 1), \
+ ((p).len = strlen((p).pwp->pw_comment)), \
+ strcpy((p).pws.pw_comment, (p).pwp->pw_comment), \
+ ((p).pws.pw_gecos = (p).pws.pw_comment + (p).len + 1), \
+ ((p).len = strlen((p).pwp->pw_gecos)), \
+ strcpy((p).pws.pw_gecos, (p).pwp->pw_gecos), \
+ ((p).pws.pw_dir = (p).pws.pw_comment + (p).len + 1), \
+ ((p).len = strlen((p).pwp->pw_dir)), \
+ strcpy((p).pws.pw_dir, (p).pwp->pw_dir), \
+ ((p).pws.pw_shell = (p).pws.pw_dir + (p).len + 1), \
+ ((p).len = strlen((p).pwp->pw_shell)), \
+ strcpy((p).pws.pw_shell, (p).pwp->pw_shell), \
+ ((p).pwp = &(p).pws), \
+ 0 )
+#endif
+# define _XGetpwuid(u,p) \
+( (_Xos_processLock), \
+ (((p).pwp = getpwuid((u))) ? _Xpw_copyPasswd(p), 0 : 0), \
+ (_Xos_processUnlock), \
+ (p).pwp )
+# define _XGetpwnam(u,p) \
+( (_Xos_processLock), \
+ (((p).pwp = getpwnam((u))) ? _Xpw_copyPasswd(p), 0 : 0), \
+ (_Xos_processUnlock), \
+ (p).pwp )
+
+#elif !defined(_POSIX_THREAD_SAFE_FUNCTIONS) && !defined(__APPLE__)
+/* SVR4 threads, AIX 4.2.0 and earlier and OSF/1 3.2 and earlier pthreads */
+# define X_NEEDS_PWPARAMS
+typedef struct {
+ struct passwd pws;
+ char pwbuf[X_LINE_MAX];
+} _Xgetpwparams;
+# if defined(_POSIX_REENTRANT_FUNCTIONS) || !defined(SVR4) || defined(Lynx)
+# ifndef Lynx
+# define _XGetpwuid(u,p) \
+((getpwuid_r((u),&(p).pws,(p).pwbuf,sizeof((p).pwbuf)) == -1) ? NULL : &(p).pws)
+# define _XGetpwnam(u,p) \
+((getpwnam_r((u),&(p).pws,(p).pwbuf,sizeof((p).pwbuf)) == -1) ? NULL : &(p).pws)
+# else /* Lynx */
+# define _XGetpwuid(u,p) \
+((getpwuid_r(&(p).pws,(u),(p).pwbuf,sizeof((p).pwbuf)) == -1) ? NULL : &(p).pws)
+# define _XGetpwnam(u,p) \
+((getpwnam_r(&(p).pws,(u),(p).pwbuf,sizeof((p).pwbuf)) == -1) ? NULL : &(p).pws)
+# endif
+# else /* SVR4 */
+# define _XGetpwuid(u,p) \
+((getpwuid_r((u),&(p).pws,(p).pwbuf,sizeof((p).pwbuf)) == NULL) ? NULL : &(p).pws)
+# define _XGetpwnam(u,p) \
+((getpwnam_r((u),&(p).pws,(p).pwbuf,sizeof((p).pwbuf)) == NULL) ? NULL : &(p).pws)
+# endif /* SVR4 */
+
+#else /* _POSIX_THREAD_SAFE_FUNCTIONS */
+/* Digital UNIX 4.0, but not (beta) T4.0-1 */
+# if defined(__osf__)
+/* OSF/1 V4.0 <pwd.h> doesn't declare the _P routines, breaking under C++. */
+extern int _Pgetpwuid_r(uid_t, struct passwd *, char *, size_t, struct passwd **);
+extern int _Pgetpwnam_r(const char *, struct passwd *, char *, size_t, struct passwd **);
+# endif
+# define X_NEEDS_PWPARAMS
+typedef struct {
+ struct passwd pws;
+ char pwbuf[X_LINE_MAX];
+ struct passwd* pwp;
+} _Xgetpwparams;
+typedef int _Xgetpwret;
+# define _XGetpwuid(u,p) \
+((getpwuid_r((u),&(p).pws,(p).pwbuf,sizeof((p).pwbuf),&(p).pwp) == 0) ? \
+ (p).pwp : NULL)
+# define _XGetpwnam(u,p) \
+((getpwnam_r((u),&(p).pws,(p).pwbuf,sizeof((p).pwbuf),&(p).pwp) == 0) ? \
+ (p).pwp : NULL)
+#endif /* X_INCLUDE_PWD_H */
+
+#if defined(X_INCLUDE_PWD_H) && !defined(_XOS_INCLUDED_PWD_H)
+# define _XOS_INCLUDED_PWD_H
+#endif
+
+
+/***** <netdb.h> wrappers *****/
+
+/*
+ * Effective prototypes for <netdb.h> wrappers:
+ *
+ * NOTE: On systems lacking the appropriate _r functions Gethostbyname(),
+ * Gethostbyaddr(), and Getservbyname() do NOT copy the host or
+ * protocol lists!
+ *
+ * #define X_INCLUDE_NETDB_H
+ * #define XOS_USE_..._LOCKING
+ * #include <X11/Xos_r.h>
+ *
+ * typedef ... _Xgethostbynameparams;
+ * typedef ... _Xgetservbynameparams;
+ *
+ * struct hostent* _XGethostbyname(const char* name,_Xgethostbynameparams);
+ * struct hostent* _XGethostbyaddr(const char* addr, int len, int type,
+ * _Xgethostbynameparams);
+ * struct servent* _XGetservbyname(const char* name, const char* proto,
+ * _Xgetservbynameparams);
+ */
+
+#undef XTHREADS_NEEDS_BYNAMEPARAMS
+#if defined(X_INCLUDE_NETDB_H) && !defined(_XOS_INCLUDED_NETDB_H) \
+ && !defined(WIN32)
+# include <netdb.h>
+# if defined(XUSE_MTSAFE_API) || defined(XUSE_MTSAFE_NETDBAPI)
+# define XOS_USE_MTSAFE_NETDBAPI 1
+# endif
+#endif
+
+#if !defined(X_INCLUDE_NETDB_H) || defined(_XOS_INCLUDED_NETDB_H)
+/* Do nothing. */
+
+#elif !defined(XTHREADS) && !defined(X_FORCE_USE_MTSAFE_API)
+/* Use regular, unsafe API. */
+typedef int _Xgethostbynameparams; /* dummy */
+typedef int _Xgetservbynameparams; /* dummy */
+# define _XGethostbyname(h,hp) gethostbyname((h))
+# define _XGethostbyaddr(a,al,t,hp) gethostbyaddr((a),(al),(t))
+# define _XGetservbyname(s,p,sp) getservbyname((s),(p))
+
+#elif !defined(XOS_USE_MTSAFE_NETDBAPI) || defined(XNO_MTSAFE_NETDBAPI)
+/* UnixWare 2.0, or other systems with thread support but no _r API. */
+/* WARNING: The h_addr_list and s_aliases values are *not* copied! */
+
+#if defined(__NetBSD__) || defined(__FreeBSD__) || defined(__DragonFly__)
+#include <sys/param.h>
+#endif
+
+typedef struct {
+ struct hostent hent;
+ char h_name[MAXHOSTNAMELEN];
+ struct hostent *hptr;
+} _Xgethostbynameparams;
+typedef struct {
+ struct servent sent;
+ char s_name[255];
+ char s_proto[255];
+ struct servent *sptr;
+} _Xgetservbynameparams;
+
+# define XTHREADS_NEEDS_BYNAMEPARAMS
+
+# define _Xg_copyHostent(hp) \
+ (memcpy(&(hp).hent, (hp).hptr, sizeof(struct hostent)), \
+ strcpy((hp).h_name, (hp).hptr->h_name), \
+ ((hp).hent.h_name = (hp).h_name), \
+ ((hp).hptr = &(hp).hent), \
+ 0 )
+# define _Xg_copyServent(sp) \
+ (memcpy(&(sp).sent, (sp).sptr, sizeof(struct servent)), \
+ strcpy((sp).s_name, (sp).sptr->s_name), \
+ ((sp).sent.s_name = (sp).s_name), \
+ strcpy((sp).s_proto, (sp).sptr->s_proto), \
+ ((sp).sent.s_proto = (sp).s_proto), \
+ ((sp).sptr = &(sp).sent), \
+ 0 )
+# define _XGethostbyname(h,hp) \
+ ((_Xos_processLock), \
+ (((hp).hptr = gethostbyname((h))) ? _Xg_copyHostent(hp) : 0), \
+ (_Xos_processUnlock), \
+ (hp).hptr )
+# define _XGethostbyaddr(a,al,t,hp) \
+ ((_Xos_processLock), \
+ (((hp).hptr = gethostbyaddr((a),(al),(t))) ? _Xg_copyHostent(hp) : 0), \
+ (_Xos_processUnlock), \
+ (hp).hptr )
+# define _XGetservbyname(s,p,sp) \
+ ((_Xos_processLock), \
+ (((sp).sptr = getservbyname((s),(p))) ? _Xg_copyServent(sp) : 0), \
+ (_Xos_processUnlock), \
+ (sp).sptr )
+
+#elif defined(XUSE_NETDB_R_API)
+/*
+ * POSIX does not specify _r equivalents for <netdb.h> API, but some
+ * vendors provide them anyway. Use them only when explicitly asked.
+ */
+# ifdef _POSIX_REENTRANT_FUNCTIONS
+# ifndef _POSIX_THREAD_SAFE_FUNCTIONS
+# if defined(AIXV3) || defined(AIXV4) || defined(__osf__)
+# define X_POSIX_THREAD_SAFE_FUNCTIONS 1
+# endif
+# endif
+# endif
+# ifdef _POSIX_THREAD_SAFE_FUNCTIONS
+# define X_POSIX_THREAD_SAFE_FUNCTIONS 1
+# endif
+
+# define XTHREADS_NEEDS_BYNAMEPARAMS
+
+# ifndef X_POSIX_THREAD_SAFE_FUNCTIONS
+typedef struct {
+ struct hostent hent;
+ char hbuf[X_LINE_MAX];
+ int herr;
+} _Xgethostbynameparams;
+typedef struct {
+ struct servent sent;
+ char sbuf[X_LINE_MAX];
+} _Xgetservbynameparams;
+# define _XGethostbyname(h,hp) \
+ gethostbyname_r((h),&(hp).hent,(hp).hbuf,sizeof((hp).hbuf),&(hp).herr)
+# define _XGethostbyaddr(a,al,t,hp) \
+ gethostbyaddr_r((a),(al),(t),&(hp).hent,(hp).hbuf,sizeof((hp).hbuf),&(hp).herr)
+# define _XGetservbyname(s,p,sp) \
+ getservbyname_r((s),(p),&(sp).sent,(sp).sbuf,sizeof((sp).sbuf))
+# else
+typedef struct {
+ struct hostent hent;
+ struct hostent_data hdata;
+} _Xgethostbynameparams;
+typedef struct {
+ struct servent sent;
+ struct servent_data sdata;
+} _Xgetservbynameparams;
+# define _XGethostbyname(h,hp) \
+ (bzero((char*)&(hp).hdata,sizeof((hp).hdata)), \
+ ((gethostbyname_r((h),&(hp).hent,&(hp).hdata) == -1) ? NULL : &(hp).hent))
+# define _XGethostbyaddr(a,al,t,hp) \
+ (bzero((char*)&(hp).hdata,sizeof((hp).hdata)), \
+ ((gethostbyaddr_r((a),(al),(t),&(hp).hent,&(hp).hdata) == -1) ? NULL : &(hp).hent))
+# define _XGetservbyname(s,p,sp) \
+ (bzero((char*)&(sp).sdata,sizeof((sp).sdata)), \
+ ((getservbyname_r((s),(p),&(sp).sent,&(sp).sdata) == -1) ? NULL : &(sp).sent) )
+# endif
+# ifdef X_POSIX_THREAD_SAFE_FUNCTIONS
+# undef X_POSIX_THREAD_SAFE_FUNCTIONS
+# endif
+
+#else
+/* The regular API is assumed to be MT-safe under POSIX. */
+typedef int _Xgethostbynameparams; /* dummy */
+typedef int _Xgetservbynameparams; /* dummy */
+# define _XGethostbyname(h,hp) gethostbyname((h))
+# define _XGethostbyaddr(a,al,t,hp) gethostbyaddr((a),(al),(t))
+# define _XGetservbyname(s,p,sp) getservbyname((s),(p))
+#endif /* X_INCLUDE_NETDB_H */
+
+#if defined(X_INCLUDE_NETDB_H) && !defined(_XOS_INCLUDED_NETDB_H)
+# define _XOS_INCLUDED_NETDB_H
+#endif
+
+
+/***** <dirent.h> wrappers *****/
+
+/*
+ * Effective prototypes for <dirent.h> wrappers:
+ *
+ * #define X_INCLUDE_DIRENT_H
+ * #define XOS_USE_..._LOCKING
+ * #include <X11/Xos_r.h>
+ *
+ * typedef ... _Xreaddirparams;
+ *
+ * struct dirent *_XReaddir(DIR *dir_pointer, _Xreaddirparams);
+ */
+
+#if defined(X_INCLUDE_DIRENT_H) && !defined(_XOS_INCLUDED_DIRENT_H)
+# include <sys/types.h>
+# if !defined(X_NOT_POSIX) || defined(SYSV) || defined(USG)
+# include <dirent.h>
+# else
+# include <sys/dir.h>
+# ifndef dirent
+# define dirent direct
+# endif
+# endif
+# if defined(XUSE_MTSAFE_API) || defined(XUSE_MTSAFE_DIRENTAPI)
+# define XOS_USE_MTSAFE_DIRENTAPI 1
+# endif
+#endif
+
+#if !defined(X_INCLUDE_DIRENT_H) || defined(_XOS_INCLUDED_DIRENT_H)
+/* Do nothing. */
+
+#elif !defined(XTHREADS) && !defined(X_FORCE_USE_MTSAFE_API)
+/* Use regular, unsafe API. */
+typedef int _Xreaddirparams; /* dummy */
+# define _XReaddir(d,p) readdir(d)
+
+#elif !defined(XOS_USE_MTSAFE_DIRENTAPI) || defined(XNO_MTSAFE_DIRENTAPI)
+/* Systems with thread support but no _r API. */
+typedef struct {
+ struct dirent *result;
+ struct dirent dir_entry;
+# ifdef _POSIX_PATH_MAX
+ char buf[_POSIX_PATH_MAX];
+# elif defined(NAME_MAX)
+ char buf[NAME_MAX];
+# else
+ char buf[255];
+# endif
+} _Xreaddirparams;
+
+# define _XReaddir(d,p) \
+ ( (_Xos_processLock), \
+ (((p).result = readdir((d))) ? \
+ (memcpy(&((p).dir_entry), (p).result, (p).result->d_reclen), \
+ ((p).result = &(p).dir_entry), 0) : \
+ 0), \
+ (_Xos_processUnlock), \
+ (p).result )
+
+#else
+typedef struct {
+ struct dirent *result;
+ struct dirent dir_entry;
+# ifdef _POSIX_PATH_MAX
+ char buf[_POSIX_PATH_MAX];
+# elif defined(NAME_MAX)
+ char buf[NAME_MAX];
+# else
+ char buf[255];
+# endif
+} _Xreaddirparams;
+
+# if defined(_POSIX_THREAD_SAFE_FUNCTIONS) || defined(AIXV3) || \
+ defined(AIXV4) || defined(__APPLE__)
+/* AIX defines the draft POSIX symbol, but uses the final API. */
+/* POSIX final API, returns (int)0 on success. */
+# if defined(__osf__)
+/* OSF/1 V4.0 <dirent.h> doesn't declare _Preaddir_r, breaking under C++. */
+extern int _Preaddir_r(DIR *, struct dirent *, struct dirent **);
+# endif
+# define _XReaddir(d,p) \
+ (readdir_r((d), &((p).dir_entry), &((p).result)) ? NULL : (p).result)
+# elif defined(_POSIX_REENTRANT_FUNCTIONS) && defined(__osf__)
+/*
+ * OSF/1 V3.2 readdir_r() will SEGV if the main program is not
+ * explicitly linked with -lc_r. The library REQUIREDLIBS don't help.
+ * Assume that if threads have been initialized we're linked properly.
+ */
+# define _XReaddir(d,p) \
+ ( (_Xos_isThreadInitialized) ? \
+ (readdir_r((d), &((p).dir_entry)) ? NULL : &((p).dir_entry)) : \
+ ((_Xos_processLock), \
+ (((p).result = readdir((d))) ? \
+ (memcpy(&((p).dir_entry), (p).result, (p).result->d_reclen), \
+ ((p).result = &(p).dir_entry), 0) : \
+ 0), \
+ (_Xos_processUnlock), \
+ (p).result) )
+# elif defined(_POSIX_REENTRANT_FUNCTIONS)
+/* POSIX draft API, returns (int)0 on success. */
+# define _XReaddir(d,p) \
+ (readdir_r((d),&((p).dir_entry)) ? NULL : &((p).dir_entry))
+# elif defined(SVR4)
+/* Pre-POSIX API, returns non-NULL on success. */
+# define _XReaddir(d,p) (readdir_r((d), &(p).dir_entry))
+# else
+/* We have no idea what is going on. Fake it all using process locks. */
+# define _XReaddir(d,p) \
+ ( (_Xos_processLock), \
+ (((p).result = readdir((d))) ? \
+ (memcpy(&((p).dir_entry), (p).result, (p).result->d_reclen), \
+ ((p).result = &(p).dir_entry), 0) : \
+ 0), \
+ (_Xos_processUnlock), \
+ (p).result )
+# endif
+#endif /* X_INCLUDE_DIRENT_H */
+
+#if defined(X_INCLUDE_DIRENT_H) && !defined(_XOS_INCLUDED_DIRENT_H)
+# define _XOS_INCLUDED_DIRENT_H
+#endif
+
+
+/***** <unistd.h> wrappers *****/
+
+/*
+ * Effective prototypes for <unistd.h> wrappers:
+ *
+ * #define X_INCLUDE_UNISTD_H
+ * #define XOS_USE_..._LOCKING
+ * #include <X11/Xos_r.h>
+ *
+ * typedef ... _Xgetloginparams;
+ * typedef ... _Xttynameparams;
+ *
+ * char *_XGetlogin(_Xgetloginparams);
+ * char *_XTtyname(int, _Xttynameparams);
+ */
+
+#if defined(X_INCLUDE_UNISTD_H) && !defined(_XOS_INCLUDED_UNISTD_H)
+/* <unistd.h> already included by <X11/Xos.h> */
+# if defined(XUSE_MTSAFE_API) || defined(XUSE_MTSAFE_UNISTDAPI)
+# define XOS_USE_MTSAFE_UNISTDAPI 1
+# endif
+#endif
+
+#if !defined(X_INCLUDE_UNISTD_H) || defined(_XOS_INCLUDED_UNISTD_H)
+/* Do nothing. */
+
+#elif !defined(XTHREADS) && !defined(X_FORCE_USE_MTSAFE_API)
+/* Use regular, unsafe API. */
+typedef int _Xgetloginparams; /* dummy */
+typedef int _Xttynameparams; /* dummy */
+# define _XGetlogin(p) getlogin()
+# define _XTtyname(f) ttyname((f))
+
+#elif !defined(XOS_USE_MTSAFE_UNISTDAPI) || defined(XNO_MTSAFE_UNISTDAPI)
+/* Systems with thread support but no _r API. */
+typedef struct {
+ char *result;
+# if defined(MAXLOGNAME)
+ char buf[MAXLOGNAME];
+# elif defined(LOGIN_NAME_MAX)
+ char buf[LOGIN_NAME_MAX];
+# else
+ char buf[64];
+# endif
+} _Xgetloginparams;
+typedef struct {
+ char *result;
+# ifdef TTY_NAME_MAX
+ char buf[TTY_NAME_MAX];
+# elif defined(_POSIX_TTY_NAME_MAX)
+ char buf[_POSIX_TTY_NAME_MAX];
+# elif defined(_POSIX_PATH_MAX)
+ char buf[_POSIX_PATH_MAX];
+# else
+ char buf[256];
+# endif
+} _Xttynameparams;
+
+# define _XGetlogin(p) \
+ ( (_Xos_processLock), \
+ (((p).result = getlogin()) ? \
+ (strncpy((p).buf, (p).result, sizeof((p).buf)), \
+ ((p).buf[sizeof((p).buf)-1] = '\0'), \
+ ((p).result = (p).buf), 0) : 0), \
+ (_Xos_processUnlock), \
+ (p).result )
+#define _XTtyname(f,p) \
+ ( (_Xos_processLock), \
+ (((p).result = ttyname(f)) ? \
+ (strncpy((p).buf, (p).result, sizeof((p).buf)), \
+ ((p).buf[sizeof((p).buf)-1] = '\0'), \
+ ((p).result = (p).buf), 0) : 0), \
+ (_Xos_processUnlock), \
+ (p).result )
+
+#elif defined(_POSIX_THREAD_SAFE_FUNCTIONS) || defined(_POSIX_REENTRANT_FUNCTIONS)
+/* POSIX API.
+ *
+ * extern int getlogin_r(char *, size_t);
+ * extern int ttyname_r(int, char *, size_t);
+ */
+typedef struct {
+# if defined(MAXLOGNAME)
+ char buf[MAXLOGNAME];
+# elif defined(LOGIN_NAME_MAX)
+ char buf[LOGIN_NAME_MAX];
+# else
+ char buf[64];
+# endif
+} _Xgetloginparams;
+typedef struct {
+# ifdef TTY_NAME_MAX
+ char buf[TTY_NAME_MAX];
+# elif defined(_POSIX_TTY_NAME_MAX)
+ char buf[_POSIX_TTY_NAME_MAX];
+# elif defined(_POSIX_PATH_MAX)
+ char buf[_POSIX_PATH_MAX];
+# else
+ char buf[256];
+# endif
+} _Xttynameparams;
+
+# define _XGetlogin(p) (getlogin_r((p).buf, sizeof((p).buf)) ? NULL : (p).buf)
+# define _XTtyname(f,p) \
+ (ttyname_r((f), (p).buf, sizeof((p).buf)) ? NULL : (p).buf)
+
+#else
+/* Pre-POSIX API.
+ *
+ * extern char *getlogin_r(char *, size_t);
+ * extern char *ttyname_r(int, char *, size_t);
+ */
+typedef struct {
+# if defined(MAXLOGNAME)
+ char buf[MAXLOGNAME];
+# elif defined(LOGIN_NAME_MAX)
+ char buf[LOGIN_NAME_MAX];
+# else
+ char buf[64];
+# endif
+} _Xgetloginparams;
+typedef struct {
+# ifdef TTY_NAME_MAX
+ char buf[TTY_NAME_MAX];
+# elif defined(_POSIX_TTY_NAME_MAX)
+ char buf[_POSIX_TTY_NAME_MAX];
+# elif defined(_POSIX_PATH_MAX)
+ char buf[_POSIX_PATH_MAX];
+# else
+ char buf[256];
+# endif
+} _Xttynameparams;
+
+# define _XGetlogin(p) getlogin_r((p).buf, sizeof((p).buf))
+# define _XTtyname(f,p) ttyname_r((f), (p).buf, sizeof((p).buf))
+#endif /* X_INCLUDE_UNISTD_H */
+
+#if defined(X_INCLUDE_UNISTD_H) && !defined(_XOS_INCLUDED_UNISTD_H)
+# define _XOS_INCLUDED_UNISTD_H
+#endif
+
+
+/***** <string.h> wrappers *****/
+
+/*
+ * Effective prototypes for <string.h> wrappers:
+ *
+ * #define X_INCLUDE_STRING_H
+ * #define XOS_USE_..._LOCKING
+ * #include <X11/Xos_r.h>
+ *
+ * typedef ... _Xstrtokparams;
+ *
+ * char *_XStrtok(char *, const char*, _Xstrtokparams);
+ */
+
+#if defined(X_INCLUDE_STRING_H) && !defined(_XOS_INCLUDED_STRING_H)
+/* <string.h> has already been included by <X11/Xos.h> */
+# if defined(XUSE_MTSAFE_API) || defined(XUSE_MTSAFE_STRINGAPI)
+# define XOS_USE_MTSAFE_STRINGAPI 1
+# endif
+#endif
+
+#if !defined(X_INCLUDE_STRING_H) || defined(_XOS_INCLUDED_STRING_H)
+/* Do nothing. */
+
+#elif !defined(XTHREADS) && !defined(X_FORCE_USE_MTSAFE_API)
+/* Use regular, unsafe API. */
+typedef int _Xstrtokparams; /* dummy */
+# define _XStrtok(s1,s2,p) \
+ ( p = 0, (void)p, strtok((s1),(s2)) )
+
+#elif !defined(XOS_USE_MTSAFE_STRINGAPI) || defined(XNO_MTSAFE_STRINGAPI)
+/* Systems with thread support but no _r API. */
+typedef char *_Xstrtokparams;
+# define _XStrtok(s1,s2,p) \
+ ( (_Xos_processLock), \
+ ((p) = strtok((s1),(s2))), \
+ (_Xos_processUnlock), \
+ (p) )
+
+#else
+/* POSIX or pre-POSIX API. */
+typedef char * _Xstrtokparams;
+# define _XStrtok(s1,s2,p) strtok_r((s1),(s2),&(p))
+#endif /* X_INCLUDE_STRING_H */
+
+
+/***** <time.h> wrappers *****/
+
+/*
+ * Effective prototypes for <time.h> wrappers:
+ *
+ * #define X_INCLUDE_TIME_H
+ * #define XOS_USE_..._LOCKING
+ * #include <X11/Xos_r.h>
+ *
+ * typedef ... _Xatimeparams;
+ * typedef ... _Xctimeparams;
+ * typedef ... _Xgtimeparams;
+ * typedef ... _Xltimeparams;
+ *
+ * char *_XAsctime(const struct tm *, _Xatimeparams);
+ * char *_XCtime(const time_t *, _Xctimeparams);
+ * struct tm *_XGmtime(const time_t *, _Xgtimeparams);
+ * struct tm *_XLocaltime(const time_t *, _Xltimeparams);
+ */
+
+#if defined(X_INCLUDE_TIME_H) && !defined(_XOS_INCLUDED_TIME_H)
+# include <time.h>
+# if defined(XUSE_MTSAFE_API) || defined(XUSE_MTSAFE_TIMEAPI)
+# define XOS_USE_MTSAFE_TIMEAPI 1
+# endif
+#endif
+
+#if !defined(X_INCLUDE_TIME_H) || defined(_XOS_INCLUDED_TIME_H)
+/* Do nothing. */
+
+#elif !defined(XTHREADS) && !defined(X_FORCE_USE_MTSAFE_API)
+/* Use regular, unsafe API. */
+typedef int _Xatimeparams; /* dummy */
+# define _XAsctime(t,p) asctime((t))
+typedef int _Xctimeparams; /* dummy */
+# define _XCtime(t,p) ctime((t))
+typedef int _Xgtimeparams; /* dummy */
+# define _XGmtime(t,p) gmtime((t))
+typedef int _Xltimeparams; /* dummy */
+# define _XLocaltime(t,p) localtime((t))
+
+#elif !defined(XOS_USE_MTSAFE_TIMEAPI) || defined(XNO_MTSAFE_TIMEAPI)
+/* Systems with thread support but no _r API. */
+typedef struct {
+# ifdef TIMELEN
+ char buf[TIMELEN];
+# else
+ char buf[26];
+# endif
+ char *result;
+} _Xctimeparams, _Xatimeparams;
+typedef struct {
+ struct tm buf;
+ struct tm *result;
+} _Xgtimeparams, _Xltimeparams;
+# define _XAsctime(t,p) \
+ ( (_Xos_processLock), \
+ (((p).result = asctime((t))) ? \
+ (strncpy((p).buf, (p).result, sizeof((p).buf)), (p).result = &(p).buf) : \
+ 0), \
+ (_Xos_processUnlock), \
+ (p).result )
+# define _XCtime(t,p) \
+ ( (_Xos_processLock), \
+ (((p).result = ctime((t))) ? \
+ (strncpy((p).buf, (p).result, sizeof((p).buf)), (p).result = &(p).buf) : \
+ 0), \
+ (_Xos_processUnlock), \
+ (p).result )
+# define _XGmtime(t,p) \
+ ( (_Xos_processLock), \
+ (((p).result = gmtime(t)) ? \
+ (memcpy(&(p).buf, (p).result, sizeof((p).buf)), (p).result = &(p).buf) : \
+ 0), \
+ (_Xos_processUnlock), \
+ (p).result )
+# define _XLocaltime(t,p) \
+ ( (_Xos_processLock), \
+ (((p).result = localtime(t)) ? \
+ (memcpy(&(p).buf, (p).result, sizeof((p).buf)), (p).result = &(p).buf) : \
+ 0), \
+ (_Xos_processUnlock), \
+ (p).result )
+
+#elif !defined(_POSIX_THREAD_SAFE_FUNCTIONS) && (defined(__osf__) || defined(hpV4))
+/* Returns (int)0 on success. OSF/1 v3.2, HP/UX 10
+ *
+ * extern int asctime_r(const struct tm *timeptr, char *buffer, int buflen);
+ * extern int ctime_r(const time_t *timer, char *buffer, int buflen);
+ * extern int gmtime_r(const time_t *timer, struct tm *result);
+ * extern int localtime_r(const time_t *timer, struct tm *result);
+ */
+# ifdef TIMELEN
+typedef char _Xatimeparams[TIMELEN];
+typedef char _Xctimeparams[TIMELEN];
+# else
+typedef char _Xatimeparams[26];
+typedef char _Xctimeparams[26];
+# endif
+typedef struct tm _Xgtimeparams;
+typedef struct tm _Xltimeparams;
+# define _XAsctime(t,p) (asctime_r((t),(p),sizeof((p))) ? NULL : (p))
+# define _XCtime(t,p) (ctime_r((t),(p),sizeof((p))) ? NULL : (p))
+# define _XGmtime(t,p) (gmtime_r((t),&(p)) ? NULL : &(p))
+# define _XLocaltime(t,p) (localtime_r((t),&(p)) ? NULL : &(p))
+
+#elif !defined(_POSIX_THREAD_SAFE_FUNCTIONS) && defined(sun)
+/* Returns NULL on failure. Solaris 2.5
+ *
+ * extern char *asctime_r(const struct tm *tm,char *buf, int buflen);
+ * extern char *ctime_r(const time_t *clock, char *buf, int buflen);
+ * extern struct tm *gmtime_r(const time_t *clock, struct tm *res);
+ * extern struct tm *localtime_r(const time_t *clock, struct tm *res);
+ */
+# ifdef TIMELEN
+typedef char _Xatimeparams[TIMELEN];
+typedef char _Xctimeparams[TIMELEN];
+# else
+typedef char _Xatimeparams[26];
+typedef char _Xctimeparams[26];
+# endif
+typedef struct tm _Xgtimeparams;
+typedef struct tm _Xltimeparams;
+# define _XAsctime(t,p) asctime_r((t),(p),sizeof((p)))
+# define _XCtime(t,p) ctime_r((t),(p),sizeof((p)))
+# define _XGmtime(t,p) gmtime_r((t),&(p))
+# define _XLocaltime(t,p) localtime_r((t),&(p))
+
+#else /* defined(_POSIX_THREAD_SAFE_FUNCTIONS) */
+/* POSIX final API. OSF/1 v4.0, AIX, etc.
+ *
+ * extern char *asctime_r(const struct tm *timeptr, char *buffer);
+ * extern char *ctime_r(const time_t *timer, char *buffer);
+ * extern struct tm *gmtime_r(const time_t *timer, struct tm *result);
+ * extern struct tm *localtime_r(const time_t *timer, struct tm *result);
+ */
+# if defined(__osf__)
+/* OSF/1 V4.0 <time.h> doesn't declare the _P routines, breaking under C++. */
+extern char *_Pasctime_r(const struct tm *, char *);
+extern char *_Pctime_r(const time_t *, char *);
+extern struct tm *_Plocaltime_r(const time_t *, struct tm *);
+# endif
+# ifdef TIMELEN
+typedef char _Xatimeparams[TIMELEN];
+typedef char _Xctimeparams[TIMELEN];
+# else
+typedef char _Xatimeparams[26];
+typedef char _Xctimeparams[26];
+# endif
+typedef struct tm _Xgtimeparams;
+typedef struct tm _Xltimeparams;
+# define _XAsctime(t,p) asctime_r((t),(p))
+# define _XCtime(t,p) ctime_r((t),(p))
+# define _XGmtime(t,p) gmtime_r((t),&(p))
+# define _XLocaltime(t,p) localtime_r((t),&(p))
+#endif /* X_INCLUDE_TIME_H */
+
+#if defined(X_INCLUDE_TIME_H) && !defined(_XOS_INCLUDED_TIME_H)
+# define _XOS_INCLUDED_TIME_H
+#endif
+
+
+/***** <grp.h> wrappers *****/
+
+/*
+ * Effective prototypes for <grp.h> wrappers:
+ *
+ * NOTE: On systems lacking appropriate _r functions Getgrgid() and
+ * Getgrnam() do NOT copy the list of group members!
+ *
+ * Remember that fgetgrent(), setgrent(), getgrent(), and endgrent()
+ * are not included in POSIX.
+ *
+ * #define X_INCLUDE_GRP_H
+ * #define XOS_USE_..._LOCKING
+ * #include <X11/Xos_r.h>
+ *
+ * typedef ... _Xgetgrparams;
+ *
+ * struct group *_XGetgrgid(gid_t, _Xgetgrparams);
+ * struct group *_XGetgrnam(const char *, _Xgetgrparams);
+ */
+
+#if defined(X_INCLUDE_GRP_H) && !defined(_XOS_INCLUDED_GRP_H)
+# include <grp.h>
+# if defined(XUSE_MTSAFE_API) || defined(XUSE_MTSAFE_GRPAPI)
+# define XOS_USE_MTSAFE_GRPAPI 1
+# endif
+#endif
+
+#if !defined(X_INCLUDE_GRP_H) || defined(_XOS_INCLUDED_GRP_H)
+/* Do nothing. */
+
+#elif !defined(XTHREADS) && !defined(X_FORCE_USE_MTSAFE_API)
+/* Use regular, unsafe API. */
+typedef int _Xgetgrparams; /* dummy */
+#define _XGetgrgid(g,p) getgrgid((g))
+#define _XGetgrnam(n,p) getgrnam((n))
+
+#elif !defined(XOS_USE_MTSAFE_GRPAPI) || defined(XNO_MTSAFE_GRPAPI)
+/* Systems with thread support but no _r API. UnixWare 2.0. */
+typedef struct {
+ struct group grp;
+ char buf[X_LINE_MAX]; /* Should be sysconf(_SC_GETGR_R_SIZE_MAX)? */
+ struct group *pgrp;
+ size_t len;
+} _Xgetgrparams;
+#ifdef SVR4
+/* Copy the gr_passwd field too. */
+# define _Xgrp_copyGroup(p) \
+ ( memcpy(&(p).grp, (p).pgrp, sizeof(struct group)), \
+ ((p).grp.gr_name = (p).buf), \
+ ((p).len = strlen((p).pgrp->gr_name)), \
+ strcpy((p).grp.gr_name, (p).pgrp->gr_name), \
+ ((p).grp.gr_passwd = (p).grp.gr_name + (p).len + 1), \
+ ((p).pgrp = &(p).grp), \
+ 0 )
+#else
+# define _Xgrp_copyGroup(p) \
+ ( memcpy(&(p).grp, (p).pgrp, sizeof(struct group)), \
+ ((p).grp.gr_name = (p).buf), \
+ strcpy((p).grp.gr_name, (p).pgrp->gr_name), \
+ ((p).pgrp = &(p).grp), \
+ 0 )
+#endif
+#define _XGetgrgid(g,p) \
+ ( (_Xos_processLock), \
+ (((p).pgrp = getgrgid((g))) ? _Xgrp_copyGroup(p) : 0), \
+ (_Xos_processUnlock), \
+ (p).pgrp )
+#define _XGetgrnam(n,p) \
+ ( (_Xos_processLock), \
+ (((p).pgrp = getgrnam((n))) ? _Xgrp_copyGroup(p) : 0), \
+ (_Xos_processUnlock), \
+ (p).pgrp )
+
+#elif !defined(_POSIX_THREAD_SAFE_FUNCTIONS) && (defined(sun) || defined(__osf__))
+/* Non-POSIX API. Solaris, DEC v3.2.
+ *
+ * extern struct group *getgrgid_r(gid_t, struct group *, char *, int);
+ * extern struct group *getgrnam_r(const char *, struct group *, char *, int);
+ */
+typedef struct {
+ struct group grp;
+ char buf[X_LINE_MAX]; /* Should be sysconf(_SC_GETGR_R_SIZE_MAX)? */
+} _Xgetgrparams;
+#define _XGetgrgid(g,p) getgrgid_r((g), &(p).grp, (p).buf, sizeof((p).buf))
+#define _XGetgrnam(n,p) getgrnam_r((n), &(p).grp, (p).buf, sizeof((p).buf))
+
+#elif !defined(_POSIX_THREAD_SAFE_FUNCTIONS)
+/* Non-POSIX API. HP/UX 10, AIX 4.
+ *
+ * extern int getgrgid_r(gid_t, struct group *, char *, int);
+ * extern int getgrnam_r(const char *, struct group *, char *, int);
+ */
+typedef struct {
+ struct group grp;
+ char buf[X_LINE_MAX]; /* Should be sysconf(_SC_GETGR_R_SIZE_MAX)? */
+} _Xgetgrparams;
+#define _XGetgrgid(g,p) \
+ ((getgrgid_r((g), &(p).grp, (p).buf, sizeof((p).buf)) ? NULL : &(p).grp))
+#define _XGetgrnam(n,p) \
+ ((getgrnam_r((n), &(p).grp, (p).buf, sizeof((p).buf)) ? NULL : &(p).grp))
+
+#else
+/* POSIX final API. DEC v4.0, IRIX 6.2.
+ *
+ * int getgrgid_r(gid_t, struct group *, char *, size_t, struct group **);
+ * int getgrnam_r(const char *, struct group *, char *, size_t, struct group **);
+ */
+# if defined(__osf__)
+/* OSF/1 V4.0 <grp.h> doesn't declare the _P routines, breaking under C++. */
+extern int _Pgetgrgid_r(gid_t, struct group *, char *, size_t, struct group **);
+extern int _Pgetgrnam_r(const char *, struct group *, char *, size_t, struct group **);
+# endif
+typedef struct {
+ struct group grp;
+ char buf[X_LINE_MAX]; /* Should be sysconf(_SC_GETGR_R_SIZE_MAX)? */
+ struct group *result;
+} _Xgetgrparams;
+
+#define _XGetgrgid(g,p) \
+ ((getgrgid_r((g), &(p).grp, (p).buf, sizeof((p).buf), &(p).result) ? \
+ NULL : (p).result))
+#define _XGetgrnam(n,p) \
+ ((getgrnam_r((n), &(p).grp, (p).buf, sizeof((p).buf), &(p).result) ? \
+ NULL : (p).result))
+#endif
+
+#if defined(X_INCLUDE_GRP_H) && !defined(_XOS_INCLUDED_GRP_H)
+# define _XOS_INCLUDED_GRP_H
+#endif
+
+
+#ifdef __cplusplus
+} /* Close scope of 'extern "C"' declaration which encloses file. */
+#endif