#include "logfsos.h"#include "logfs.h"#include "local.h" enum {	GROUPMOD = 127}; static intgroupcompare(void *a, void *b){	Group *g = a;	char *uid = b;	return g->uid == uid;} static intunamecompare(void *a, void *b){	Uname *u = a;	char *uname = b;	return u->uname == uname;} static intgroupallocsize(void *key){	USED(key);	return sizeof(Group);} static intunameallocsize(void *key){	USED(key);	return sizeof(Uname);} char *logfsgroupmapnew(GroupMap **groupmapp, UnameMap **unamemapp){	char *errmsg;	errmsg = logfsmapnew(GROUPMOD, logfshashulong, groupcompare, groupallocsize, nil, groupmapp);	if(errmsg)		return errmsg;	errmsg = logfsmapnew(GROUPMOD, logfshashulong, unamecompare, unameallocsize, nil, unamemapp);	if(errmsg)		logfsmapfree(groupmapp);	return errmsg;} char *logfsgroupmapnewentry(GroupMap *gm, UnameMap *um, char *uid, char *uname, Group **groupp, Uname **unamep){	char *errmsg;	errmsg = logfsmapnewentry(gm, uid, groupp);	if(errmsg)		return errmsg;	if(*groupp == nil)		return "uid already exists";	(*groupp)->uid = uid;	errmsg = logfsgroupsetnew(&(*groupp)->members);	if(errmsg) {		logfsmapdeleteentry(gm, uid);		return errmsg;	}	errmsg = logfsmapnewentry(um, uname, unamep);	if(errmsg == nil && *unamep == nil)		errmsg = "uname already exists";	if(errmsg) {		logfsgroupsetfree(&(*groupp)->members);		logfsmapdeleteentry(gm, uid);		return errmsg;	}	(*groupp)->uname = uname;	(*unamep)->uname = uname;	(*unamep)->g = *groupp;	return nil;} char *logfsgroupmapfinduname(GroupMap *m, char *uid){	Group *g;	g = logfsgroupmapfindentry(m, uid);	if(g)		return g->uname;	return nil;} char *logfsunamemapfinduid(UnameMap *m, char *uname){	Uname *u;	u = logfsunamemapfindentry(m, uname);	if(u)		return u->g->uid;	return nil;}