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120 lines
4.3 KiB
C
120 lines
4.3 KiB
C
/* vi: set sw=4 ts=4: */
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/* Copyright (C) 1991,92,95,96,97,98,99,2000,01 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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*/
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/*
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* POSIX Standard: 9.2.1 Group Database Access <grp.h>
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*/
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#ifndef BB_GRP_H
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#define BB_GRP_H 1
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PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
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/* This file is #included after #include <grp.h>
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* We will use libc-defined structures, but will #define function names
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* so that function calls are directed to bb_internal_XXX replacements
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*/
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#undef endgrent
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#define setgrent bb_internal_setgrent
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#define endgrent bb_internal_endgrent
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#define getgrent bb_internal_getgrent
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#define fgetgrent bb_internal_fgetgrent
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#define putgrent bb_internal_putgrent
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#define getgrgid bb_internal_getgrgid
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#define getgrnam bb_internal_getgrnam
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#define getgrent_r bb_internal_getgrent_r
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#define getgrgid_r bb_internal_getgrgid_r
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#define getgrnam_r bb_internal_getgrnam_r
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#define fgetgrent_r bb_internal_fgetgrent_r
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#define getgrouplist bb_internal_getgrouplist
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#define initgroups bb_internal_initgroups
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/* All function names below should be remapped by #defines above
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* in order to not collide with libc names. */
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/* Rewind the group-file stream. */
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extern void setgrent(void);
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/* Close the group-file stream. */
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extern void endgrent(void);
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#ifdef UNUSED_SINCE_WE_AVOID_STATIC_BUFS
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/* Read an entry from the group-file stream, opening it if necessary. */
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extern struct group *getgrent(void);
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/* Read a group entry from STREAM. */
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extern struct group *fgetgrent(FILE *__stream);
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/* Write the given entry onto the given stream. */
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extern int putgrent(const struct group *__restrict __p,
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FILE *__restrict __f);
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#endif
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/* Search for an entry with a matching group ID. */
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extern struct group *getgrgid(gid_t __gid);
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/* Search for an entry with a matching group name. */
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extern struct group *getgrnam(const char *__name);
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/* Reentrant versions of some of the functions above.
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PLEASE NOTE: the `getgrent_r' function is not (yet) standardized.
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The interface may change in later versions of this library. But
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the interface is designed following the principals used for the
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other reentrant functions so the chances are good this is what the
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POSIX people would choose. */
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extern int getgrent_r(struct group *__restrict __resultbuf,
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char *__restrict __buffer, size_t __buflen,
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struct group **__restrict __result);
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/* Search for an entry with a matching group ID. */
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extern int getgrgid_r(gid_t __gid, struct group *__restrict __resultbuf,
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char *__restrict __buffer, size_t __buflen,
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struct group **__restrict __result);
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/* Search for an entry with a matching group name. */
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extern int getgrnam_r(const char *__restrict __name,
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struct group *__restrict __resultbuf,
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char *__restrict __buffer, size_t __buflen,
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struct group **__restrict __result);
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/* Read a group entry from STREAM. This function is not standardized
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an probably never will. */
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extern int fgetgrent_r(FILE *__restrict __stream,
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struct group *__restrict __resultbuf,
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char *__restrict __buffer, size_t __buflen,
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struct group **__restrict __result);
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/* Store at most *NGROUPS members of the group set for USER into
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*GROUPS. Also include GROUP. The actual number of groups found is
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returned in *NGROUPS. Return -1 if the if *NGROUPS is too small. */
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extern int getgrouplist(const char *__user, gid_t __group,
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gid_t *__groups, int *__ngroups);
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/* Initialize the group set for the current user
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by reading the group database and using all groups
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of which USER is a member. Also include GROUP. */
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extern int initgroups(const char *__user, gid_t __group);
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POP_SAVED_FUNCTION_VISIBILITY
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#endif
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