-/* Copyright (C) 1991 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
+/* Copyright (C) 1991, 1992, 1995, 1996, 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
-The GNU 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
-Library General Public License for more details.
+ The GNU 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
+ Library General Public License for more details.
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 675 Mass Ave,
-Cambridge, MA 02139, USA. */
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
/*
* POSIX Standard: 9.2.1 Group Database Access <grp.h>
*/
#ifndef _GRP_H
-
#define _GRP_H 1
+
#include <features.h>
-#include <gnu/types.h>
+__BEGIN_DECLS
+
+#include <bits/types.h>
+
+#define __need_size_t
+#include <stddef.h>
/* The group structure. */
struct group
{
- char *gr_name; /* Group name. */
- char *gr_passwd; /* Password. */
- __gid_t gr_gid; /* Group ID. */
- char **gr_mem; /* Member list. */
+ char *gr_name; /* Group name. */
+ char *gr_passwd; /* Password. */
+ __gid_t gr_gid; /* Group ID. */
+ char **gr_mem; /* Member list. */
};
#ifdef __USE_GNU
/* Return a new stream open on the group file. */
-extern FILE *EXFUN(__grpopen, (NOARGS));
+extern FILE *__grpopen __P ((void));
/* Read a group entry from STREAM, filling in G.
Return the `struct group' of G if successful, NULL on failure. */
-extern struct group *EXFUN(__grpread, (FILE *__stream, PTR __g));
+extern struct group *__grpread __P ((FILE *__stream, __ptr_t __g));
/* Return a chunk of memory containing pre-initialized data for __grpread. */
-extern PTR EXFUN(__grpalloc, (NOARGS));
+extern __ptr_t __grpalloc __P ((void));
+
+/* Scan the group file, filling in G, until SELECTOR returns nonzero for an
+ entry. Return the `struct group' of G if successful, NULL on failure. */
+extern struct group *__grpscan __P ((__ptr_t *__p,
+ int (*__selector) (struct group *)));
#endif
-#if defined(__USE_SVID) || defined(__USE_MISC)
+#if defined(__USE_SVID) || defined (__USE_BSD) || defined(__USE_XOPEN_EXTENDED)
/* Rewind the group-file stream. */
-extern void EXFUN(setgrent, (NOARGS));
+extern void setgrent __P ((void));
/* Close the group-file stream. */
-extern void EXFUN(endgrent, (NOARGS));
+extern void endgrent __P ((void));
/* Read an entry from the group-file stream, opening it if necessary. */
-extern struct group *EXFUN(getgrent, (NOARGS));
+extern struct group *getgrent __P ((void));
#endif
#ifdef __USE_SVID
/* Read a group entry from STREAM. */
-extern struct group *EXFUN(fgetgrent, (FILE *__stream));
+extern struct group *fgetgrent __P ((FILE *__stream));
#endif
/* Search for an entry with a matching group ID. */
-extern struct group *EXFUN(getgrgid, (__gid_t __gid));
+extern struct group *getgrgid __P ((__gid_t __gid));
/* Search for an entry with a matching group name. */
-extern struct group *EXFUN(getgrnam, (CONST char *__name));
+extern struct group *getgrnam __P ((__const char *__name));
+
+#if defined __USE_POSIX || defined __USE_MISC
+
+#ifdef __USE_MISC
+/* Reasonable value for the buffer sized used in the reentrant
+ functions below. But better use `sysconf'. */
+#define NSS_BUFLEN_GROUP 1024
+#endif
+
+/* Reentrant versions of some of the functions above.
+
+ PLEASE NOTE: the `getgrent_r' function is not (yet) standardized.
+ The interface may change in later versions of this library. But
+ the interface is designed following the principals used for the
+ other reentrant functions so the chances are good this is what the
+ POSIX people would choose. */
+
+#if defined(__USE_SVID) || defined (__USE_BSD) || defined(__USE_XOPEN_EXTENDED)
+extern int __getgrent_r __P ((struct group *__resultbuf, char *buffer,
+ size_t __buflen, struct group **__result));
+extern int getgrent_r __P ((struct group *__resultbuf, char *buffer,
+ size_t __buflen, struct group **__result));
+#endif
+
+/* Search for an entry with a matching group ID. */
+extern int getgrgid_r __P ((__gid_t __gid, struct group *__resultbuf,
+ char *buffer, size_t __buflen,
+ struct group **__result));
+
+/* Search for an entry with a matching group name. */
+extern int getgrnam_r __P ((__const char *__name, struct group *__resultbuf,
+ char *buffer, size_t __buflen,
+ struct group **__result));
+
+#ifdef __USE_SVID
+/* Read a group entry from STREAM. This function is not standardized
+ an probably never will. */
+extern int __fgetgrent_r __P ((FILE * __stream, struct group *__resultbuf,
+ char *buffer, size_t __buflen,
+ struct group **__result));
+extern int fgetgrent_r __P ((FILE * __stream, struct group *__resultbuf,
+ char *buffer, size_t __buflen,
+ struct group **__result));
+#endif
+
+#endif /* POSIX or reentrant */
#ifdef __USE_BSD
#include <stddef.h>
/* Set the group set for the current user to GROUPS (N of them). */
-extern int EXFUN(setgroups, (size_t __n, CONST __gid_t *groups));
+extern int setgroups __P ((size_t __n, __const __gid_t *__groups));
/* Initialize the group set for the current user
by reading the group database and using all groups
of which USER is a member. Also include GROUP. */
-extern int EXFUN(initgroups, (CONST char *user, __gid_t group));
+extern int initgroups __P ((__const char *__user, __gid_t __group));
-#endif /* Use BSD. */
+#endif /* Use BSD. */
+__END_DECLS
-#endif /* grp.h */
+#endif /* grp.h */
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