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fixdep.c: avoit doing memcmp in most cases

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uidgid_get.c: add forgotten copyright notice
pwd/grp/shadow: avoid collisions with libc names
This commit is contained in:
Denis Vlasenko
2006-12-30 21:11:57 +00:00
parent 80602a98bc
commit cb04ff5c68
7 changed files with 191 additions and 108 deletions
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74
include/grp_.h
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@@ -21,50 +21,71 @@
* POSIX Standard: 9.2.1 Group Database Access <grp.h>
*/
#if !ENABLE_USE_BB_PWD_GRP
#if !defined CONFIG_USE_BB_PWD_GRP
#include <grp.h>
#else
#ifndef _GRP_H
#define _GRP_H 1
#include <sys/types.h>
#include <features.h>
#include <stdio.h>
#define _GRP_H 1
/* The group structure. */
struct group
{
char *gr_name; /* Group name. */
char *gr_passwd; /* Password. */
gid_t gr_gid; /* Group ID. */
char **gr_mem; /* Member list. */
struct group {
char *gr_name; /* Group name. */
char *gr_passwd; /* Password. */
gid_t gr_gid; /* Group ID. */
char **gr_mem; /* Member list. */
};
/* We don't reimplement this, just supplying prototype */
/* The function itself is in libc */
/* Set the group set for the current user to GROUPS (N of them). */
extern int setgroups(size_t __n, __const gid_t *__groups);
#define setgrent bb_internal_setgrent
#define endgrent bb_internal_endgrent
#define getgrent bb_internal_getgrent
#define fgetgrent bb_internal_fgetgrent
#define putgrent bb_internal_putgrent
#define getgrgid bb_internal_getgrgid
#define getgrnam bb_internal_getgrnam
#define getgrent_r bb_internal_getgrent_r
#define getgrgid_r bb_internal_getgrgid_r
#define getgrnam_r bb_internal_getgrnam_r
#define fgetgrent_r bb_internal_fgetgrent_r
#define getgrouplist bb_internal_getgrouplist
#define initgroups bb_internal_initgroups
/* All function names below should be remapped by #defines above
* in order to not collide with libc names.
* In theory it isn't necessary, but I saw weird interactions at link time.
* Let's play safe */
/* Rewind the group-file stream. */
extern void setgrent (void);
extern void setgrent(void);
/* Close the group-file stream. */
extern void endgrent (void);
extern void endgrent(void);
/* Read an entry from the group-file stream, opening it if necessary. */
extern struct group *getgrent (void);
extern struct group *getgrent(void);
/* Read a group entry from STREAM. */
extern struct group *fgetgrent (FILE *__stream);
extern struct group *fgetgrent(FILE *__stream);
/* Write the given entry onto the given stream. */
extern int putgrent (__const struct group *__restrict __p,
extern int putgrent(__const struct group *__restrict __p,
FILE *__restrict __f);
/* Search for an entry with a matching group ID. */
extern struct group *getgrgid (gid_t __gid);
extern struct group *getgrgid(gid_t __gid);
/* Search for an entry with a matching group name. */
extern struct group *getgrnam (__const char *__name);
extern struct group *getgrnam(__const char *__name);
/* Reentrant versions of some of the functions above.
@@ -74,41 +95,38 @@ extern struct group *getgrnam (__const char *__name);
other reentrant functions so the chances are good this is what the
POSIX people would choose. */
extern int getgrent_r (struct group *__restrict __resultbuf,
extern int getgrent_r(struct group *__restrict __resultbuf,
char *__restrict __buffer, size_t __buflen,
struct group **__restrict __result);
/* Search for an entry with a matching group ID. */
extern int getgrgid_r (gid_t __gid, struct group *__restrict __resultbuf,
extern int getgrgid_r(gid_t __gid, struct group *__restrict __resultbuf,
char *__restrict __buffer, size_t __buflen,
struct group **__restrict __result);
/* Search for an entry with a matching group name. */
extern int getgrnam_r (__const char *__restrict __name,
extern int getgrnam_r(__const char *__restrict __name,
struct group *__restrict __resultbuf,
char *__restrict __buffer, size_t __buflen,
struct group **__restrict __result);
/* Read a group entry from STREAM. This function is not standardized
an probably never will. */
extern int fgetgrent_r (FILE *__restrict __stream,
extern int fgetgrent_r(FILE *__restrict __stream,
struct group *__restrict __resultbuf,
char *__restrict __buffer, size_t __buflen,
struct group **__restrict __result);
/* Set the group set for the current user to GROUPS (N of them). */
extern int setgroups (size_t __n, __const gid_t *__groups);
/* Store at most *NGROUPS members of the group set for USER into
*GROUPS. Also include GROUP. The actual number of groups found is
returned in *NGROUPS. Return -1 if the if *NGROUPS is too small. */
extern int getgrouplist (__const char *__user, gid_t __group,
extern int getgrouplist(__const char *__user, gid_t __group,
gid_t *__groups, int *__ngroups);
/* Initialize the group set for the current user
by reading the group database and using all groups
of which USER is a member. Also include GROUP. */
extern int initgroups (__const char *__user, gid_t __group);
extern int initgroups(__const char *__user, gid_t __group);
#endif /* grp.h */