bionic: Implement getpwent and getgrent
Not efficient to iterate through given the large number of Android
ids (AID). Compile warning will result if you use these functions,
telling you as much. Not for general consumption, however for
example, some filesystem tests would like to see these to perform
all corners.
About 1/4 second for getpwent, and 1/8 second for getgrent to iterate
through all reserved Android aids.
Bug: 27999086
Change-Id: I7784273b7875c38e4954ae21d314f35e4bf8c2fc
diff --git a/libc/include/grp.h b/libc/include/grp.h
index df7a613..3ae0d6e 100644
--- a/libc/include/grp.h
+++ b/libc/include/grp.h
@@ -1,9 +1,9 @@
-/* $OpenBSD: grp.h,v 1.8 2005/12/13 00:35:22 millert Exp $ */
-/* $NetBSD: grp.h,v 1.7 1995/04/29 05:30:40 cgd Exp $ */
+/* $OpenBSD: grp.h,v 1.8 2005/12/13 00:35:22 millert Exp $ */
+/* $NetBSD: grp.h,v 1.7 1995/04/29 05:30:40 cgd Exp $ */
/*-
* Copyright (c) 1989, 1993
- * The Regents of the University of California. All rights reserved.
+ * The Regents of the University of California. All rights reserved.
* (c) UNIX System Laboratories, Inc.
* All or some portions of this file are derived from material licensed
* to the University of California by American Telephone and Telegraph
@@ -34,39 +34,37 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
- * @(#)grp.h 8.2 (Berkeley) 1/21/94
+ * @(#)grp.h 8.2 (Berkeley) 1/21/94
*/
#ifndef _GRP_H_
-#define _GRP_H_
+#define _GRP_H_
#include <sys/cdefs.h>
#include <sys/types.h>
struct group {
- char *gr_name; /* group name */
- char *gr_passwd; /* group password */
- gid_t gr_gid; /* group id */
- char **gr_mem; /* group members */
+ char* gr_name; /* group name */
+ char* gr_passwd; /* group password */
+ gid_t gr_gid; /* group id */
+ char** gr_mem; /* group members */
};
__BEGIN_DECLS
-struct group *getgrgid(gid_t);
-struct group *getgrnam(const char *);
+struct group* getgrgid(gid_t);
+struct group* getgrnam(const char *);
#if __POSIX_VISIBLE >= 200112 || __XPG_VISIBLE
-struct group *getgrent(void) __attribute__((deprecated("getgrent is meaningless on Android")));
-void setgrent(void) __attribute__((deprecated("setgrent is meaningless on Android")));
-void endgrent(void) __attribute__((deprecated("endgrent is meaningless on Android")));
-int getgrgid_r(gid_t, struct group *, char *,
- size_t, struct group **);
-int getgrnam_r(const char *, struct group *, char *,
- size_t, struct group **);
+/* Android has thousands and thousands of ids to iterate through */
+struct group* getgrent(void) __attribute__((warning("getgrent is inefficient on Android")));
+void setgrent(void);
+void endgrent(void);
+int getgrgid_r(gid_t, struct group *, char *, size_t, struct group **);
+int getgrnam_r(const char *, struct group *, char *, size_t, struct group **);
#endif
-int getgrouplist (const char *user, gid_t group,
- gid_t *groups, int *ngroups);
+int getgrouplist (const char *user, gid_t group, gid_t *groups, int *ngroups);
-int initgroups (const char *user, gid_t group);
+int initgroups (const char *user, gid_t group);
__END_DECLS