/* $Id: zephyr.pc 3956 2010-01-05 20:56:56Z zacheiss $
 *
 * This generates zephyr acl files
 *
 * Copyright (C) 1990-1999 by the Massachusetts Institute of Technology.
 * For copying and distribution information, please see the file
 * <mit-copyright.h>.
 */

#include <mit-copyright.h>
#include <moira.h>
#include <moira_site.h>
#include "util.h"

#include <sys/stat.h>
#include <sys/types.h>

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

EXEC SQL INCLUDE sqlca;

RCSID("$HeadURL: svn+ssh://svn.mit.edu/moira/trunk/moira/gen/zephyr.pc $ $Id: zephyr.pc 3956 2010-01-05 20:56:56Z zacheiss $");

void do_class(TARFILE *tf, char *class);
void dump_zacl(FILE *out, char *type, int id);
void sqlerr(void);

char *whoami = "zephyr.gen";
char *db = "moira/moira";

time_t now;

int main(int argc, char **argv)
{
  EXEC SQL BEGIN DECLARE SECTION;
  char classbuf[ZEPHYR_CLASS_SIZE];
  EXEC SQL END DECLARE SECTION;
  TARFILE *tf;
  FILE *out;
  struct save_queue *sq;
  char *class;
 
  if (argc != 2)
    {
      fprintf(stderr, "usage: %s outfile\n", argv[0]);
      exit(MR_ARGS);
    }

  EXEC SQL WHENEVER SQLERROR DO sqlerr();
  EXEC SQL CONNECT :db;
  init_acls();
  time(&now);

  tf = tarfile_open(argv[1]);
  out = tarfile_start(tf, "class-registry.acl", 0644, 0, 0,
		      "root", "root", now);
  sq = sq_create();

  EXEC SQL DECLARE csr_classes CURSOR FOR
    SELECT class FROM zephyr;
  EXEC SQL OPEN csr_classes;
  while (1)
    {
      EXEC SQL FETCH csr_classes INTO :classbuf;
      if (sqlca.sqlcode)
	break;

      class = strtrim(classbuf);
      sq_save_data(sq, strdup(class));
      fprintf(out, "%s:\n", class);
    }
  EXEC SQL CLOSE csr_classes;
  tarfile_end(tf);

  while (sq_remove_data(sq, &class))
    do_class(tf, class);

  sq_destroy(sq);
  EXEC SQL COMMIT RELEASE;
  tarfile_close(tf);
  exit(MR_SUCCESS);
}

void do_class(TARFILE *tf, char *class)
{
  FILE *out;
  char filename[ZEPHYR_CLASS_SIZE + 9];
  EXEC SQL BEGIN DECLARE SECTION;
  char *zclass = class, zxtype[ZEPHYR_XMT_TYPE_SIZE];
  char zstype[ZEPHYR_SUB_TYPE_SIZE], zwtype[ZEPHYR_IWS_TYPE_SIZE];
  char zutype[ZEPHYR_IUI_TYPE_SIZE];
  int zxid, zsid, zwid, zuid;
  EXEC SQL END DECLARE SECTION;

  EXEC SQL SELECT xmt_type, xmt_id, sub_type, sub_id,
    iws_type, iws_id, iui_type, iui_id
    INTO :zxtype, :zxid, :zstype, :zsid,
    :zwtype, :zwid, :zutype, :zuid
    FROM zephyr
    WHERE class = :zclass;
  if (sqlca.sqlcode)
    return;

  sprintf(filename, "xmt-%s.acl", class);
  out = tarfile_start(tf, filename, 0644, 0, 0, "root", "root", now);
  dump_zacl(out, strtrim(zxtype), zxid);
  tarfile_end(tf);

  sprintf(filename, "sub-%s.acl", class);
  out = tarfile_start(tf, filename, 0644, 0, 0, "root", "root", now);
  dump_zacl(out, strtrim(zstype), zsid);
  tarfile_end(tf);

  sprintf(filename, "iws-%s.acl", class);
  out = tarfile_start(tf, filename, 0644, 0, 0, "root", "root", now);
  dump_zacl(out, strtrim(zwtype), zwid);
  tarfile_end(tf);

  sprintf(filename, "iui-%s.acl", class);
  out = tarfile_start(tf, filename, 0644, 0, 0, "root", "root", now);
  dump_zacl(out, strtrim(zutype), zuid);
  tarfile_end(tf);
}

void dump_zacl(FILE *out, char *type, int id)
{
  if (!strcmp(type, "ALL"))
    fprintf(out, "*.*@*\n");
  else if (strcmp(type, "NONE") != 0)
    dump_krb_acl(out, type, id, 4);
}

void sqlerr(void)
{
  db_error(sqlca.sqlcode);
  exit(MR_DBMS_ERR);
}