-/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
+/* Copyright (C) 1991,92,95,96,97,98,99,2000,01 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 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.
-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
+ Lesser 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, 1992 Free Software Foundation, Inc., 675 Mass Ave,
-Cambridge, MA 02139, USA. */
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; 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>
__BEGIN_DECLS
-#include <gnu/types.h>
+#include <bits/types.h>
+
+#define __need_size_t
+#include <stddef.h>
+/* For the Single Unix specification we must define this type here. */
+#if defined __USE_XOPEN && !defined __gid_t_defined
+typedef __gid_t gid_t;
+# define __gid_t_defined
+#endif
+
/* The group structure. */
struct group
{
};
-#if defined(__USE_SVID) || defined(__USE_GNU)
-#define __need_FILE
-#include <stdio.h>
+#if defined __USE_SVID || defined __USE_GNU
+# define __need_FILE
+# include <stdio.h>
#endif
-#ifdef __USE_GNU
-/* Return a new stream open on the group file. */
-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 *__grpread __P ((FILE * __stream, __ptr_t __g));
-/* Return a chunk of memory containing pre-initialized data for __grpread. */
-extern __ptr_t __grpalloc __P ((void));
-#endif
-
-
-#if defined(__USE_SVID) || defined(__USE_MISC) || defined (__USE_BSD)
+#if defined __USE_SVID || defined __USE_BSD || defined __USE_XOPEN_EXTENDED
/* Rewind the group-file stream. */
-extern void setgrent __P ((void));
+extern void setgrent (void) __THROW;
/* Close the group-file stream. */
-extern void endgrent __P ((void));
+extern void endgrent (void) __THROW;
/* Read an entry from the group-file stream, opening it if necessary. */
-extern struct group *getgrent __P ((void));
+extern struct group *getgrent (void) __THROW;
#endif
#ifdef __USE_SVID
/* Read a group entry from STREAM. */
-extern struct group *fgetgrent __P ((FILE * __stream));
+extern struct group *fgetgrent (FILE *__stream) __THROW;
+#endif
+
+#ifdef __USE_GNU
+/* Write the given entry onto the given stream. */
+extern int putgrent (__const struct group *__restrict __p,
+ FILE *__restrict __f) __THROW;
#endif
/* Search for an entry with a matching group ID. */
-extern struct group *getgrgid __P ((__gid_t __gid));
+extern struct group *getgrgid (__gid_t __gid) __THROW;
/* Search for an entry with a matching group name. */
-extern struct group *getgrnam __P ((__const char *__name));
+extern struct group *getgrnam (__const char *__name) __THROW;
+
+#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. */
+
+# ifdef __USE_GNU
+extern int getgrent_r (struct group *__restrict __resultbuf,
+ char *__restrict __buffer, size_t __buflen,
+ struct group **__restrict __result) __THROW;
+# endif
+
+/* Search for an entry with a matching group ID. */
+extern int getgrgid_r (__gid_t __gid, struct group *__restrict __resultbuf,
+ char *__restrict __buffer, size_t __buflen,
+ struct group **__restrict __result) __THROW;
+
+/* Search for an entry with a matching group name. */
+extern int getgrnam_r (__const char *__restrict __name,
+ struct group *__restrict __resultbuf,
+ char *__restrict __buffer, size_t __buflen,
+ struct group **__restrict __result) __THROW;
+
+# ifdef __USE_SVID
+/* Read a group entry from STREAM. This function is not standardized
+ an probably never will. */
+extern int fgetgrent_r (FILE *__restrict __stream,
+ struct group *__restrict __resultbuf,
+ char *__restrict __buffer, size_t __buflen,
+ struct group **__restrict __result) __THROW;
+# endif
+
+#endif /* POSIX or reentrant */
#ifdef __USE_BSD
-#define __need_size_t
-#include <stddef.h>
+# define __need_size_t
+# include <stddef.h>
/* Set the group set for the current user to GROUPS (N of them). */
-extern int setgroups __P ((size_t __n, __const __gid_t * groups));
+extern int setgroups (size_t __n, __const __gid_t *__groups) __THROW;
+
+/* Store at most *NGROUPS members of the group set for USER into
+ *GROUPS. Also include GROUP. The actual number of groups found is
+ returned in *NGROUPS. Return -1 if the if *NGROUPS is too small. */
+extern int getgrouplist (__const char *__user, __gid_t __group,
+ __gid_t *__groups, int *__ngroups) __THROW;
/* 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 initgroups __P ((__const char *user, __gid_t group));
+extern int initgroups (__const char *__user, __gid_t __group) __THROW;
#endif /* Use BSD. */
projects / platform / upstream / glibc.git / blobdiff