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