| 1 | /* vi: set sw=4 ts=4: */
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| 2 | /* Copyright (C) 1991,92,95,96,97,98,99,2000,01 Free Software Foundation, Inc.
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| 3 | This file is part of the GNU C Library.
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| 4 |
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| 5 | The GNU C Library is free software; you can redistribute it and/or
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| 6 | modify it under the terms of the GNU Lesser General Public
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| 7 | License as published by the Free Software Foundation; either
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| 8 | version 2.1 of the License, or (at your option) any later version.
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| 9 |
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| 10 | The GNU C Library is distributed in the hope that it will be useful,
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 13 | Lesser General Public License for more details.
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| 14 |
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| 15 | You should have received a copy of the GNU Lesser General Public
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| 16 | License along with the GNU C Library; if not, write to the Free
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| 17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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| 18 | 02111-1307 USA.
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| 19 | */
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| 20 | /*
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| 21 | * POSIX Standard: 9.2.1 Group Database Access <grp.h>
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| 22 | */
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| 23 | #ifndef BB_GRP_H
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| 24 | #define BB_GRP_H 1
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| 25 |
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| 26 | PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
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| 27 |
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| 28 | /* This file is #included after #include <grp.h>
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| 29 | * We will use libc-defined structures, but will #define function names
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| 30 | * so that function calls are directed to bb_internal_XXX replacements
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| 31 | */
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| 32 |
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| 33 | #define setgrent bb_internal_setgrent
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| 34 | #define endgrent bb_internal_endgrent
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| 35 | #define getgrent bb_internal_getgrent
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| 36 | #define fgetgrent bb_internal_fgetgrent
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| 37 | #define putgrent bb_internal_putgrent
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| 38 | #define getgrgid bb_internal_getgrgid
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| 39 | #define getgrnam bb_internal_getgrnam
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| 40 | #define getgrent_r bb_internal_getgrent_r
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| 41 | #define getgrgid_r bb_internal_getgrgid_r
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| 42 | #define getgrnam_r bb_internal_getgrnam_r
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| 43 | #define fgetgrent_r bb_internal_fgetgrent_r
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| 44 | #define getgrouplist bb_internal_getgrouplist
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| 45 | #define initgroups bb_internal_initgroups
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| 46 |
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| 47 |
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| 48 | /* All function names below should be remapped by #defines above
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| 49 | * in order to not collide with libc names. */
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| 50 |
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| 51 |
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| 52 | /* Rewind the group-file stream. */
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| 53 | extern void setgrent(void);
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| 54 |
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| 55 | /* Close the group-file stream. */
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| 56 | extern void endgrent(void);
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| 57 |
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| 58 | #ifdef UNUSED_SINCE_WE_AVOID_STATIC_BUFS
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| 59 | /* Read an entry from the group-file stream, opening it if necessary. */
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| 60 | extern struct group *getgrent(void);
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| 61 |
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| 62 | /* Read a group entry from STREAM. */
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| 63 | extern struct group *fgetgrent(FILE *__stream);
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| 64 |
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| 65 | /* Write the given entry onto the given stream. */
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| 66 | extern int putgrent(const struct group *__restrict __p,
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| 67 | FILE *__restrict __f);
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| 68 | #endif
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| 69 |
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| 70 | /* Search for an entry with a matching group ID. */
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| 71 | extern struct group *getgrgid(gid_t __gid);
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| 72 |
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| 73 | /* Search for an entry with a matching group name. */
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| 74 | extern struct group *getgrnam(const char *__name);
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| 75 |
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| 76 | /* Reentrant versions of some of the functions above.
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| 77 |
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| 78 | PLEASE NOTE: the `getgrent_r' function is not (yet) standardized.
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| 79 | The interface may change in later versions of this library. But
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| 80 | the interface is designed following the principals used for the
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| 81 | other reentrant functions so the chances are good this is what the
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| 82 | POSIX people would choose. */
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| 83 |
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| 84 | extern int getgrent_r(struct group *__restrict __resultbuf,
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| 85 | char *__restrict __buffer, size_t __buflen,
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| 86 | struct group **__restrict __result);
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| 87 |
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| 88 | /* Search for an entry with a matching group ID. */
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| 89 | extern int getgrgid_r(gid_t __gid, struct group *__restrict __resultbuf,
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| 90 | char *__restrict __buffer, size_t __buflen,
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| 91 | struct group **__restrict __result);
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| 92 |
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| 93 | /* Search for an entry with a matching group name. */
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| 94 | extern int getgrnam_r(const char *__restrict __name,
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| 95 | struct group *__restrict __resultbuf,
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| 96 | char *__restrict __buffer, size_t __buflen,
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| 97 | struct group **__restrict __result);
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| 98 |
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| 99 | /* Read a group entry from STREAM. This function is not standardized
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| 100 | an probably never will. */
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| 101 | extern int fgetgrent_r(FILE *__restrict __stream,
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| 102 | struct group *__restrict __resultbuf,
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| 103 | char *__restrict __buffer, size_t __buflen,
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| 104 | struct group **__restrict __result);
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| 105 |
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| 106 | /* Store at most *NGROUPS members of the group set for USER into
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| 107 | *GROUPS. Also include GROUP. The actual number of groups found is
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| 108 | returned in *NGROUPS. Return -1 if the if *NGROUPS is too small. */
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| 109 | extern int getgrouplist(const char *__user, gid_t __group,
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| 110 | gid_t *__groups, int *__ngroups);
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| 111 |
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| 112 | /* Initialize the group set for the current user
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| 113 | by reading the group database and using all groups
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| 114 | of which USER is a member. Also include GROUP. */
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| 115 | extern int initgroups(const char *__user, gid_t __group);
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| 116 |
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| 117 | POP_SAVED_FUNCTION_VISIBILITY
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| 118 |
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| 119 | #endif
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