[1770] | 1 | /* vi: set sw=4 ts=4: */
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[821] | 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 |
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[1770] | 24 | #if !ENABLE_USE_BB_PWD_GRP
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[821] | 25 |
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| 26 | #include <grp.h>
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| 27 |
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| 28 | #else
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| 29 |
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| 30 | #ifndef _GRP_H
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[1770] | 31 | #define _GRP_H 1
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[821] | 32 |
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[1770] | 33 | /* The group structure. */
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| 34 | struct group {
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| 35 | char *gr_name; /* Group name. */
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| 36 | char *gr_passwd; /* Password. */
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| 37 | gid_t gr_gid; /* Group ID. */
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| 38 | char **gr_mem; /* Member list. */
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| 39 | };
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[821] | 40 |
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[1770] | 41 | /* We don't reimplement this, just supplying prototype */
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| 42 | /* The function itself is in libc */
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| 43 | /* Set the group set for the current user to GROUPS (N of them). */
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| 44 | extern int setgroups(size_t __n, __const gid_t *__groups);
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[821] | 45 |
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| 46 |
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[1770] | 47 | #define setgrent bb_internal_setgrent
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| 48 | #define endgrent bb_internal_endgrent
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| 49 | #define getgrent bb_internal_getgrent
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| 50 | #define fgetgrent bb_internal_fgetgrent
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| 51 | #define putgrent bb_internal_putgrent
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| 52 | #define getgrgid bb_internal_getgrgid
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| 53 | #define getgrnam bb_internal_getgrnam
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| 54 | #define getgrent_r bb_internal_getgrent_r
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| 55 | #define getgrgid_r bb_internal_getgrgid_r
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| 56 | #define getgrnam_r bb_internal_getgrnam_r
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| 57 | #define fgetgrent_r bb_internal_fgetgrent_r
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| 58 | #define getgrouplist bb_internal_getgrouplist
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| 59 | #define initgroups bb_internal_initgroups
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[821] | 60 |
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| 61 |
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[1770] | 62 | /* All function names below should be remapped by #defines above
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| 63 | * in order to not collide with libc names.
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| 64 | * In theory it isn't necessary, but I saw weird interactions at link time.
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| 65 | * Let's play safe */
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| 66 |
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| 67 |
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[821] | 68 | /* Rewind the group-file stream. */
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[1770] | 69 | extern void setgrent(void);
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[821] | 70 |
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| 71 | /* Close the group-file stream. */
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[1770] | 72 | extern void endgrent(void);
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[821] | 73 |
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| 74 | /* Read an entry from the group-file stream, opening it if necessary. */
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[1770] | 75 | extern struct group *getgrent(void);
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[821] | 76 |
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| 77 | /* Read a group entry from STREAM. */
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[1770] | 78 | extern struct group *fgetgrent(FILE *__stream);
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[821] | 79 |
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| 80 | /* Write the given entry onto the given stream. */
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[1770] | 81 | extern int putgrent(__const struct group *__restrict __p,
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[821] | 82 | FILE *__restrict __f);
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| 83 |
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| 84 | /* Search for an entry with a matching group ID. */
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[1770] | 85 | extern struct group *getgrgid(gid_t __gid);
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[821] | 86 |
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| 87 | /* Search for an entry with a matching group name. */
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[1770] | 88 | extern struct group *getgrnam(__const char *__name);
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[821] | 89 |
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| 90 | /* Reentrant versions of some of the functions above.
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| 91 |
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| 92 | PLEASE NOTE: the `getgrent_r' function is not (yet) standardized.
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| 93 | The interface may change in later versions of this library. But
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| 94 | the interface is designed following the principals used for the
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| 95 | other reentrant functions so the chances are good this is what the
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| 96 | POSIX people would choose. */
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| 97 |
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[1770] | 98 | extern int getgrent_r(struct group *__restrict __resultbuf,
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[821] | 99 | char *__restrict __buffer, size_t __buflen,
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| 100 | struct group **__restrict __result);
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| 101 |
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| 102 | /* Search for an entry with a matching group ID. */
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[1770] | 103 | extern int getgrgid_r(gid_t __gid, struct group *__restrict __resultbuf,
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[821] | 104 | char *__restrict __buffer, size_t __buflen,
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| 105 | struct group **__restrict __result);
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| 106 |
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| 107 | /* Search for an entry with a matching group name. */
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[1770] | 108 | extern int getgrnam_r(__const char *__restrict __name,
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[821] | 109 | struct group *__restrict __resultbuf,
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| 110 | char *__restrict __buffer, size_t __buflen,
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| 111 | struct group **__restrict __result);
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| 112 |
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| 113 | /* Read a group entry from STREAM. This function is not standardized
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| 114 | an probably never will. */
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[1770] | 115 | extern int fgetgrent_r(FILE *__restrict __stream,
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[821] | 116 | struct group *__restrict __resultbuf,
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| 117 | char *__restrict __buffer, size_t __buflen,
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| 118 | struct group **__restrict __result);
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| 119 |
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| 120 | /* Store at most *NGROUPS members of the group set for USER into
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| 121 | *GROUPS. Also include GROUP. The actual number of groups found is
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| 122 | returned in *NGROUPS. Return -1 if the if *NGROUPS is too small. */
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[1770] | 123 | extern int getgrouplist(__const char *__user, gid_t __group,
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[821] | 124 | gid_t *__groups, int *__ngroups);
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| 125 |
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| 126 | /* Initialize the group set for the current user
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| 127 | by reading the group database and using all groups
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| 128 | of which USER is a member. Also include GROUP. */
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[1770] | 129 | extern int initgroups(__const char *__user, gid_t __group);
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[821] | 130 |
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| 131 |
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| 132 | #endif /* grp.h */
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| 133 | #endif
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