/* * $Id: bigdir.c,v 1.2 2003/10/20 18:59:56 tomcollins Exp $ * Copyright (C) 1999-2002 Inter7 Internet Technologies, Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA */#include <stdlib.h>#include <stdio.h>#include <sys/stat.h>#include <sys/types.h>#include <fcntl.h>#include <unistd.h>#include <string.h>#include <errno.h>#include "file_lock.h"#include "config.h"#include "vpopmail.h"#include "vauth.h"vdir_type vdir;static char dirlist[MAX_DIR_LIST] ="0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";int open_big_dir(char *domain, uid_t uid, gid_t gid){	memset(&vdir,0,sizeof(vdir_type));	vread_dir_control(&vdir, domain, uid, gid);	return(0);}int close_big_dir(char *domain, uid_t uid, gid_t gid){	vwrite_dir_control(&vdir, domain, uid, gid);	return(0);}int dec_dir_control(char *domain, uid_t uid, gid_t gid){	open_big_dir(domain, uid, gid);	--vdir.cur_users;	close_big_dir(domain, uid, gid);	return(0);}char *next_big_dir(uid_t uid, gid_t gid){	inc_dir_control(&vdir);	if ( vdir.the_dir[0] != 0 ) {	    r_mkdir(vdir.the_dir, uid, gid);	}	return(vdir.the_dir);}char *inc_dir( vdir_type *vdir, int in_level ) {	if ( vdir->the_dir[vdir->level_mod[in_level]] == 		dirlist[vdir->level_end[in_level]] ) {		vdir->the_dir[vdir->level_mod[in_level]] = 			dirlist[vdir->level_start[in_level]];		vdir->level_index[in_level] = vdir->level_start[in_level];		if ( in_level > 0 ) inc_dir(vdir, in_level-1);	} else {		vdir->the_dir[vdir->level_mod[in_level]] = next_char( 			vdir->the_dir[vdir->level_mod[in_level]], 			vdir->level_start[in_level], 			vdir->level_end[in_level] ); 		++vdir->level_index[in_level];	}	return(vdir->the_dir);}char next_char(char in_char, int in_start, int in_end ){ int i;	for(i=in_start;i<in_end+1 && dirlist[i] != in_char;++i);	 ++i;	if ( i >= in_end+1 ) i = in_start;	return(dirlist[i]);}int inc_dir_control(vdir_type *vdir){	++vdir->cur_users;	if ( vdir->cur_users%MAX_USERS_PER_LEVEL == 0 ) {		if ( strlen(vdir->the_dir) == 0 ) {			vdir->the_dir[0] = dirlist[vdir->level_start[0]];			vdir->the_dir[1] = 0; 			return(0);		}		if ( vdir->level_index[vdir->level_cur] == 	     	vdir->level_end[vdir->level_cur] ) {			switch (vdir->level_cur) {		    	case 0:				inc_dir( vdir, vdir->level_cur );				++vdir->level_cur;				strcat(vdir->the_dir, "/" );				break;		    	case 1:				if ( vdir->level_index[0]==vdir->level_end[0] &&			     	     vdir->level_index[1]==vdir->level_end[1]) {					inc_dir( vdir, vdir->level_cur );					++vdir->level_cur;					strcat(vdir->the_dir, "/");				}				break;			}		}		inc_dir( vdir, vdir->level_cur );	}	return(0);}void print_control(){	/*printf("cur users %ul\n", vdir.cur_users);*/	printf("dir = %s\n", vdir.the_dir);	/*	printf("level_cur = %d\n", vdir.level_cur);	printf("level_max = %d\n", vdir.level_max);	printf("d level_index 0 = %d 1 = %d 2 = %d\n",		vdir.level_index[0],		vdir.level_index[1],		vdir.level_index[2]);	printf("level_start 0 = %d 1 = %d 2 = %d\n",		vdir.level_start[0],		vdir.level_start[1],		vdir.level_start[2]);	printf("level_end 0 = %d 1 = %d 2 = %d\n",		vdir.level_end[0],		vdir.level_end[1],		vdir.level_end[2]);	printf("level_mod 0 = %d 1 = %d 2 = %d\n",		vdir.level_mod[0],		vdir.level_mod[1],		vdir.level_mod[2]);	*/}