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-rw-r--r--include/grp_.h74
1 files changed, 46 insertions, 28 deletions
diff --git a/include/grp_.h b/include/grp_.h
index b34addfa2..061b86ef7 100644
--- a/include/grp_.h
+++ b/include/grp_.h
@@ -21,50 +21,71 @@
21 * POSIX Standard: 9.2.1 Group Database Access <grp.h> 21 * POSIX Standard: 9.2.1 Group Database Access <grp.h>
22 */ 22 */
23 23
24#if !ENABLE_USE_BB_PWD_GRP
24 25
25#if !defined CONFIG_USE_BB_PWD_GRP
26#include <grp.h> 26#include <grp.h>
27 27
28#else 28#else
29 29
30#ifndef _GRP_H 30#ifndef _GRP_H
31#define _GRP_H 1 31#define _GRP_H 1
32
33#include <sys/types.h>
34#include <features.h>
35#include <stdio.h>
36 32
37/* The group structure. */ 33/* The group structure. */
38struct group 34struct group {
39{ 35 char *gr_name; /* Group name. */
40 char *gr_name; /* Group name. */ 36 char *gr_passwd; /* Password. */
41 char *gr_passwd; /* Password. */ 37 gid_t gr_gid; /* Group ID. */
42 gid_t gr_gid; /* Group ID. */ 38 char **gr_mem; /* Member list. */
43 char **gr_mem; /* Member list. */
44}; 39};
45 40
41/* We don't reimplement this, just supplying prototype */
42/* The function itself is in libc */
43/* Set the group set for the current user to GROUPS (N of them). */
44extern int setgroups(size_t __n, __const gid_t *__groups);
45
46
47#define setgrent bb_internal_setgrent
48#define endgrent bb_internal_endgrent
49#define getgrent bb_internal_getgrent
50#define fgetgrent bb_internal_fgetgrent
51#define putgrent bb_internal_putgrent
52#define getgrgid bb_internal_getgrgid
53#define getgrnam bb_internal_getgrnam
54#define getgrent_r bb_internal_getgrent_r
55#define getgrgid_r bb_internal_getgrgid_r
56#define getgrnam_r bb_internal_getgrnam_r
57#define fgetgrent_r bb_internal_fgetgrent_r
58#define getgrouplist bb_internal_getgrouplist
59#define initgroups bb_internal_initgroups
60
61
62/* All function names below should be remapped by #defines above
63 * in order to not collide with libc names.
64 * In theory it isn't necessary, but I saw weird interactions at link time.
65 * Let's play safe */
66
46 67
47/* Rewind the group-file stream. */ 68/* Rewind the group-file stream. */
48extern void setgrent (void); 69extern void setgrent(void);
49 70
50/* Close the group-file stream. */ 71/* Close the group-file stream. */
51extern void endgrent (void); 72extern void endgrent(void);
52 73
53/* Read an entry from the group-file stream, opening it if necessary. */ 74/* Read an entry from the group-file stream, opening it if necessary. */
54extern struct group *getgrent (void); 75extern struct group *getgrent(void);
55 76
56/* Read a group entry from STREAM. */ 77/* Read a group entry from STREAM. */
57extern struct group *fgetgrent (FILE *__stream); 78extern struct group *fgetgrent(FILE *__stream);
58 79
59/* Write the given entry onto the given stream. */ 80/* Write the given entry onto the given stream. */
60extern int putgrent (__const struct group *__restrict __p, 81extern int putgrent(__const struct group *__restrict __p,
61 FILE *__restrict __f); 82 FILE *__restrict __f);
62 83
63/* Search for an entry with a matching group ID. */ 84/* Search for an entry with a matching group ID. */
64extern struct group *getgrgid (gid_t __gid); 85extern struct group *getgrgid(gid_t __gid);
65 86
66/* Search for an entry with a matching group name. */ 87/* Search for an entry with a matching group name. */
67extern struct group *getgrnam (__const char *__name); 88extern struct group *getgrnam(__const char *__name);
68 89
69/* Reentrant versions of some of the functions above. 90/* Reentrant versions of some of the functions above.
70 91
@@ -74,41 +95,38 @@ extern struct group *getgrnam (__const char *__name);
74 other reentrant functions so the chances are good this is what the 95 other reentrant functions so the chances are good this is what the
75 POSIX people would choose. */ 96 POSIX people would choose. */
76 97
77extern int getgrent_r (struct group *__restrict __resultbuf, 98extern int getgrent_r(struct group *__restrict __resultbuf,
78 char *__restrict __buffer, size_t __buflen, 99 char *__restrict __buffer, size_t __buflen,
79 struct group **__restrict __result); 100 struct group **__restrict __result);
80 101
81/* Search for an entry with a matching group ID. */ 102/* Search for an entry with a matching group ID. */
82extern int getgrgid_r (gid_t __gid, struct group *__restrict __resultbuf, 103extern int getgrgid_r(gid_t __gid, struct group *__restrict __resultbuf,
83 char *__restrict __buffer, size_t __buflen, 104 char *__restrict __buffer, size_t __buflen,
84 struct group **__restrict __result); 105 struct group **__restrict __result);
85 106
86/* Search for an entry with a matching group name. */ 107/* Search for an entry with a matching group name. */
87extern int getgrnam_r (__const char *__restrict __name, 108extern int getgrnam_r(__const char *__restrict __name,
88 struct group *__restrict __resultbuf, 109 struct group *__restrict __resultbuf,
89 char *__restrict __buffer, size_t __buflen, 110 char *__restrict __buffer, size_t __buflen,
90 struct group **__restrict __result); 111 struct group **__restrict __result);
91 112
92/* Read a group entry from STREAM. This function is not standardized 113/* Read a group entry from STREAM. This function is not standardized
93 an probably never will. */ 114 an probably never will. */
94extern int fgetgrent_r (FILE *__restrict __stream, 115extern int fgetgrent_r(FILE *__restrict __stream,
95 struct group *__restrict __resultbuf, 116 struct group *__restrict __resultbuf,
96 char *__restrict __buffer, size_t __buflen, 117 char *__restrict __buffer, size_t __buflen,
97 struct group **__restrict __result); 118 struct group **__restrict __result);
98 119
99/* Set the group set for the current user to GROUPS (N of them). */
100extern int setgroups (size_t __n, __const gid_t *__groups);
101
102/* Store at most *NGROUPS members of the group set for USER into 120/* Store at most *NGROUPS members of the group set for USER into
103 *GROUPS. Also include GROUP. The actual number of groups found is 121 *GROUPS. Also include GROUP. The actual number of groups found is
104 returned in *NGROUPS. Return -1 if the if *NGROUPS is too small. */ 122 returned in *NGROUPS. Return -1 if the if *NGROUPS is too small. */
105extern int getgrouplist (__const char *__user, gid_t __group, 123extern int getgrouplist(__const char *__user, gid_t __group,
106 gid_t *__groups, int *__ngroups); 124 gid_t *__groups, int *__ngroups);
107 125
108/* Initialize the group set for the current user 126/* Initialize the group set for the current user
109 by reading the group database and using all groups 127 by reading the group database and using all groups
110 of which USER is a member. Also include GROUP. */ 128 of which USER is a member. Also include GROUP. */
111extern int initgroups (__const char *__user, gid_t __group); 129extern int initgroups(__const char *__user, gid_t __group);
112 130
113 131
114#endif /* grp.h */ 132#endif /* grp.h */