/* $Header$
 *
 *
 *  (c) Copyright 1989 by the Massachusetts Institute of Technology.
 *  For copying and distribution information, please see the file
 *  <mit-copyright.h>.
 */

#include <mit-copyright.h>
#include <stdio.h>
#include <sys/file.h>

#include <rx/xdr.h>
#include "ptint.h"
#include "ptserver.h"
#include "pterror.h"

#include <moira.h>
#include <moira_site.h>
#include <ctype.h>

#define min(x,y)	((x) < (y) ? (x) : (y))
char *whoami = "sync";

char *malloc(), *strsave();
int dbase_fd;

long pos;		/* cheader.eofPtr */
long usercount;		/* cheader.usercount */
long groupcount;	/* cheader.groupcount */

struct hash *users;
struct hash *groups;

struct member {
    struct entry *user;
    struct entry *group;
    struct member *unext;
    struct member *gnext;
};

struct entry {
    long id;
    long pos;
    struct member *members;
};

main(argc, argv)
int argc;
char **argv;
{
##  char db[9];
    
    int status;
    int ingerr();

    strcpy(db, "sms");

    if (!strcmp(argv[1], "-db")) {
	strncpy(db, argv[2], sizeof(db)-1);
	argc -= 2;
	argv += 2;
    }
    if (argc != 2) {
	fprintf(stderr, "usage: %s [-db sms] outfile\n", whoami);
	exit(MR_ARGS);
    }

    dbase_fd = open(argv[1], O_RDWR|O_CREAT|O_TRUNC, 0660);
    if (dbase_fd < 0) {
	perror("opening file %s", argv[1]);
	exit(1);
    }	
    IIseterr(ingerr);

    initialize_sms_error_table();
    initialize_pt_error_table();
    Initdb();					/* Initialize prdb */
    
    users = create_hash(10000);
    groups = create_hash(15000);
    
    pos = ntohl(cheader.eofPtr);
    usercount = ntohl(cheader.usercount);
    groupcount = ntohl(cheader.groupcount);

##  ingres db
##  set lockmode session where level = table
##  begin transaction

    do_passwd();
    do_groups();

##  end transaction
##  exit

    exit(MR_SUCCESS);
}


do_passwd()
##{
##  char login[9];
##  int uid, id;
    int t, i, status;
    struct prentry tentry;
    struct entry *u;

    t = time(0);
    fprintf(stderr, "Doing users: %s", ctime(&t));
    
##  range of u is users
##  retrieve (login = u.#login, uid = u.#uid, id = u.users_id)
##	where u.#uid > 0 and (u.#status = 1 or u.#status = 2) {
	    lowercase(strtrim(login));

	    if (uid==ANONYMOUSID)
		status = PRIDEXIST;
	    else {
		bzero(&tentry, sizeof(tentry));
		strcpy(tentry.name, login);
		tentry.id = htonl(uid);
		tentry.owner = htonl(SYSADMINID);
		tentry.creator = htonl(SYSADMINID);
		tentry.flags = htonl(PRQUOTA);
		tentry.ngroups = tentry.nusers = htonl(20);
		if (uid > ntohl(cheader.maxID))
		    cheader.maxID = tentry.id;
		usercount++;

		i = IDHash(uid);
		tentry.nextID = cheader.idHash[i];
		cheader.idHash[i] = htonl(pos);

		i = NameHash(tentry.name);
		tentry.nextName = cheader.nameHash[i];
		cheader.nameHash[i] = htonl(pos);
		
		pr_Write(0, 0, pos, &tentry, sizeof(tentry));

		u = (struct entry *)malloc(sizeof(struct entry));
		u->id = uid;
		u->pos = pos;
		u->members = 0;
		
		pos += ENTRYSIZE;
		status = 0;
	    }

	    if (status)
		fprintf(stderr, "Error adding user %s uid %d: %s\n",
			login, uid, error_message(status));
	    else
		hash_store(users, id, u);
##  }
##}



do_groups()
##{
    long status;
    struct prentry gentry, uentry;
    struct entry *u, *g;
    struct bucket **p, *b;
    struct member *m;
    char namebuf[41];
    int aid, t, i;
##  char name[33];
##  int gid, id, lid, hide;

    t = time(0);
    fprintf(stderr, "Doing groups: %s", ctime(&t));

##  range of l is list
##  range of m is imembers

    /* get lock records */
##  retrieve (name = l.modtime) where l.list_id = 0
##  retrieve (name = users.modtime) where users.users_id = 0
##  retrieve (name = l.#name, gid = l.#gid, lid = l.list_id, hide = l.hidden)
##	where l.group != 0 and l.active != 0 and l.#gid > 0 {
	    lowercase(strtrim(name));
	    sprintf(namebuf, "system:%s", name);
	    aid = -gid;

	    if (aid==ANYUSERID || aid==AUTHUSERID || aid==SYSADMINID)
		status = PRIDEXIST;
	    else {
		bzero(&gentry, sizeof(gentry));
		strcpy(gentry.name, namebuf);
		gentry.id = htonl(aid);
		gentry.owner = htonl(SYSADMINID);
		gentry.creator = htonl(SYSADMINID);
		if (hide)
		    gentry.flags = htonl(PRGRP|PRACCESS|PRP_STATUS_ANY);
		else
		    gentry.flags = htonl(PRGRP);
		if (aid < ntohl(cheader.maxGroup))
		    cheader.maxGroup = gentry.id;
		groupcount++;

		i = IDHash(aid);
		gentry.nextID = cheader.idHash[i];
		cheader.idHash[i] = htonl(pos);

		i = NameHash(gentry.name);
		gentry.nextName = cheader.nameHash[i];
		cheader.nameHash[i] = htonl(pos);

		pr_Write(0, 0, pos, &gentry, sizeof(gentry));
		AddToOwnerChain(0, aid, SYSADMINID);

		g = (struct entry *)malloc(sizeof(struct entry));
		g->id = aid;
		g->pos = pos;
		g->members = 0;
		
		pos += ENTRYSIZE;
		status = 0;
	    }
	    if (status)
		fprintf(stderr, "Error adding group %s id %d: %s\n",
			namebuf, aid, error_message(status));
	    if (status==0 || (status==PRIDEXIST && aid==SYSADMINID))
		hash_store(groups, lid, g);

##  }

    cheader.groupcount = htonl(groupcount);
    cheader.usercount = htonl(usercount);
    cheader.eofPtr = htonl(pos);
    pr_Write(0, 0, 0, &cheader, sizeof(cheader));
    
    t = time(0);
    fprintf(stderr, "Doing members: %s", ctime(&t));

##  retrieve (lid = m.list_id, id = m.member_id)
##	where m.member_type = "USER" {
      if ((u = (struct entry *)hash_lookup(users, id)) &&
	  (g = (struct entry *)hash_lookup(groups, lid))) {
	      m = (struct member *)malloc(sizeof(struct member));
	      m->user = u;
	      m->group = g;
	      m->unext = u->members;
	      m->gnext = g->members;
	      u->members = g->members = m;
      }
##  }

    for (p = &(users->data[users->size - 1]); p >= users->data; p--) {
	for (b = *p; b; b = b->next) {
	    if ((u = (struct entry *)b->data)->members == 0)
		continue;
	    pr_Read(0, 0, u->pos, &uentry, sizeof(uentry));
	    for (i=0, m=u->members; m && i<PRSIZE; m=m->unext, i++)
		uentry.entries[i] = htonl(m->group->id);
	    uentry.count = htonl(i);
	    pr_Write(0, 0, u->pos, &uentry, sizeof(uentry));
	    if (m) {
		pr_ReadEntry(0, 0, u->pos, &uentry);
		while (m) {
		    AddToEntry(0, &uentry, u->pos, m->group->id);
		    m = m->unext;
		}
	    }
	}
    }
    for (p = &(groups->data[groups->size - 1]); p >= groups->data; p--) {
	for (b = *p; b; b = b->next) {
	    if ((g = (struct entry *)b->data)->members == 0)
		continue;
	    pr_Read(0, 0, g->pos, &gentry, sizeof(gentry));
	    for (i=0, m=g->members; m && i<PRSIZE; m=m->gnext, i++)
		gentry.entries[i] = htonl(m->user->id);
	    gentry.count = htonl(i);
	    pr_Write(0, 0, g->pos, &gentry, sizeof(gentry));
	    if (m) {
		pr_ReadEntry(0, 0, g->pos, &gentry);
		while (m) {
		    AddToEntry(0, &gentry, g->pos, m->user->id);
		    m = m->gnext;
		}
	    }
	}
    }

    t = time(0);
    fprintf(stderr, "Done: %s", ctime(&t));

##}


/*
 * ingerr: (supposedly) called when Ingres indicates an error.
 * I have not yet been able to get this to work to intercept a
 * database open error.
 */
#define INGRES_DEADLOCK 4700

static int ingerr(num)
    int *num;
{
    char buf[256];
    int ingres_errno;

    switch (*num) {
    case INGRES_DEADLOCK:
	ingres_errno = MR_DEADLOCK;
	break;
    default:
	ingres_errno = MR_INGRES_ERR;
    }
    com_err(whoami, MR_INGRES_ERR, " code %d\n", *num);
    exit(ingres_errno);
}