modules/pm/pm_serials.c

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FUNCTIONS

This source file includes following functions.
  1. PM_get_minmax_serial
  2. atlast
  3. getop
  4. PM_get_serial_object

#include <stdio.h>
#include "ud_int.h" 
#include "protocol_mirror.h"



/************************************************************
* PM_get_minmax_serial()                                    *
*                                                           *
* Returns the min or max serial number.                     *
*                                                           *
* Returns:                                                  *
*  min (max=0) or max (max=1) serial number                 *
*  -1 in case of an error                                   *
*                                                           *
* Note:                                                     *
*  min serial= MIN(serial_id)+1                             *
*  MIN(serial_id) represents legacy RIPE.CURRENSERIAL       *
*  of the snapshot                                          *
*                                                           *
*************************************************************/
long PM_get_minmax_serial(SQ_connection_t *sql_connection, int max)
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{
static char query[STR_M];
SQ_result_set_t *sql_result;
SQ_row_t *sql_row;
char *sql_str;
long current_serial;
char *minmax;
int sql_err;

if(max==1)minmax="max"; else minmax="min";

 sprintf(query, "SELECT %s(serial_id) FROM serials ", minmax);

//fprintf(stderr, "D:<get_field_str>:query: %s\n", query);
 sql_err = SQ_execute_query(sql_connection, query, &sql_result);
 
 if(sql_err) {
    fprintf(stderr,"ERROR: %s\n", SQ_error(sql_connection));
    return(-1);
 }
        
         
 if ((sql_row = SQ_row_next(sql_result)) != NULL) {
        sql_str = SQ_get_column_string(sql_result, sql_row, 0);

     /* We must process all the rows of the result,*/
     /* otherwise we'll have them as part of the next qry */
        while ( (sql_row = SQ_row_next(sql_result)) != NULL) {
          fprintf(stderr, "E:<get_field_str> error : Dupl PK[%s]\n", query);
          if(sql_str)free(sql_str); sql_str=NULL;
        }
 }
 else sql_str=NULL;
 
 if(sql_result){ SQ_free_result(sql_result); sql_result=NULL; }
 
 if(sql_str) {
  current_serial = atol(sql_str);
  if(max!=1)current_serial++; 
  free(sql_str);
 }
 else current_serial=-1;
 
 return(current_serial);
 
}

/************************************************************
* int atlast(long serial_number)
* -1 - sql error
*
***********************************************************/

static int atlast(SQ_connection_t *sql_connection, long serial_number)
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{
char *sql_str;
char str_id[STR_S];
int atlast=-1;


  sprintf(str_id, "%ld", serial_number);
  sql_str= get_field_str(sql_connection, "atlast", "serials", "serial_id", str_id, NULL);
  if(sql_str) {
          atlast = atoi(sql_str);
          free(sql_str);
  }
  
  return(atlast);

}


/************************************************************
* int getop(long serial_number)
* -1 - sql error
*
* **********************************************************/

static int getop(SQ_connection_t *sql_connection, long serial_number)
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{
char *sql_str;
char str_id[STR_S];
int op=-1;


  sprintf(str_id, "%ld", serial_number);
  sql_str= get_field_str(sql_connection, "operation", "serials", "serial_id", str_id, NULL);
  if(sql_str) {
          op = atoi(sql_str);
          free(sql_str);
  }
  
  return(op);

}


/************************************************************
* char *PM_get_serial_object()                                 *
*                                                           *
* Returns text block corresponding to the requested serial  *
*                                                           *
* Returns:                                                  *
*  operation (ADD/DEL) and text object                      *
*  NULL in case of an error                                 *
*                                                           *
* Note:                                                     *
*  returned string should be freed by the caller            *
*                                                           *
*************************************************************/
char *PM_get_serial_object(SQ_connection_t *sql_connection, long serial_number, int *operation)
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{
char *table;
SQ_result_set_t * sql_result;
SQ_row_t *sql_row;
char *sql_str;
static char query[STR_M];
int sql_err;

  switch(atlast(sql_connection, serial_number)){
  
   case 0: table="history";
           break;
   case 1: table="last";   
           break;
   default: return(NULL);   
      
  }

  sprintf(query, "SELECT %s.object FROM %s, serials "
                 "WHERE serials.serial_id=%ld "
                 "AND serials.object_id=%s.object_id "
                 "AND serials.sequence_id=%s.sequence_id ", table, table, serial_number, table, table);
                 

 sql_err = SQ_execute_query(sql_connection, query, &sql_result);
 
 if(sql_err) {
    fprintf(stderr,"ERROR: %s\n", SQ_error(sql_connection));
    return(NULL);
 }
        
         
 if ((sql_row = SQ_row_next(sql_result)) != NULL) {
        sql_str = SQ_get_column_string(sql_result, sql_row, 0);

     /* We must process all the rows of the result,*/
     /* otherwise we'll have them as part of the next qry */
        while ( (sql_row = SQ_row_next(sql_result)) != NULL) {
          fprintf(stderr, "E:<get_field_str> error : Dupl PK[%s]\n", query);
          if(sql_str)free(sql_str); sql_str=NULL;
        }
 }
 else sql_str=NULL;
 
 if(sql_result){ SQ_free_result(sql_result); sql_result=NULL; }
 
 *operation=getop(sql_connection, serial_number);
 
 return(sql_str);
 
}

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