Patches for Berkeley DB version 3.2.9

1. Fix a bug where running recovery on a database environment containing only logs from a previous release of Berkeley DB, in which log.0000000001 doesn't exist, could fail with the following error message:

   log_get: log.0000000001: No such file or directory
   First log record not found
   

Apply the following patch to the db-3.2.9 release.

*** include/log.h.orig	2001/01/25 18:22:51	11.20
--- include/log.h	2001/02/06 05:02:28	11.21
***************
*** 198,203 ****
--- 198,204 ----
   */
  typedef enum {
  	DB_LV_INCOMPLETE,
+ 	DB_LV_NONEXISTENT,
  	DB_LV_NORMAL,
  	DB_LV_OLD_READABLE,
  	DB_LV_OLD_UNREADABLE
*** log/log.c.orig	2001/01/25 18:22:55	11.43
--- log/log.c	2001/02/06 05:02:28	11.44
***************
*** 309,321 ****
  	int find_first, *valp;
  	logfile_validity *statusp;
  {
! 	logfile_validity clv_status, status;
  	u_int32_t clv, logval;
  	int cnt, fcnt, ret;
  	const char *dir;
  	char **names, *p, *q, savech;
  
! 	clv_status = status = DB_LV_NORMAL;
  
  	/* Return a value of 0 as the log file number on failure. */
  	*valp = 0;
--- 309,321 ----
  	int find_first, *valp;
  	logfile_validity *statusp;
  {
! 	logfile_validity logval_status, status;
  	u_int32_t clv, logval;
  	int cnt, fcnt, ret;
  	const char *dir;
  	char **names, *p, *q, savech;
  
! 	logval_status = status = DB_LV_NONEXISTENT;
  
  	/* Return a value of 0 as the log file number on failure. */
  	*valp = 0;
***************
*** 385,394 ****
  			 * as a valid log file.
  			 */
  			break;
  		case DB_LV_NORMAL:
  		case DB_LV_OLD_READABLE:
  			logval = clv;
! 			clv_status = status;
  			break;
  		case DB_LV_OLD_UNREADABLE:
  			/*
--- 385,398 ----
  			 * as a valid log file.
  			 */
  			break;
+ 		case DB_LV_NONEXISTENT:
+ 			/* Should never happen. */
+ 			DB_ASSERT(0);
+ 			break;
  		case DB_LV_NORMAL:
  		case DB_LV_OLD_READABLE:
  			logval = clv;
! 			logval_status = status;
  			break;
  		case DB_LV_OLD_UNREADABLE:
  			/*
***************
*** 410,416 ****
  			 */
  			if (!find_first) {
  				logval = clv;
! 				clv_status = status;
  			}
  			break;
  		}
--- 414,420 ----
  			 */
  			if (!find_first) {
  				logval = clv;
! 				logval_status = status;
  			}
  			break;
  		}
***************
*** 420,426 ****
  
  err:	__os_dirfree(names, fcnt);
  	__os_freestr(p);
! 	*statusp = clv_status;
  
  	return (ret);
  }
--- 424,430 ----
  
  err:	__os_dirfree(names, fcnt);
  	__os_freestr(p);
! 	*statusp = logval_status;
  
  	return (ret);
  }

2. Fix a bug where opening too many files causes a core dump.

Apply the following patch to the db-3.2.9 release.

*** log/log_rec.c.orig	2001/01/25 18:22:56	11.49
--- log/log_rec.c	2001/02/07 22:17:46
***************
*** 404,410 ****
  				TAILQ_INIT(&logp->dbentry[i].dblist);
  			else
  				TAILQ_REINSERT_HEAD(
! 				    &logp->dbentry[i].dblist, dbp, links);
  		}
  
  		/* Initialize the new entries. */
--- 404,410 ----
  				TAILQ_INIT(&logp->dbentry[i].dblist);
  			else
  				TAILQ_REINSERT_HEAD(
! 				    &logp->dbentry[i].dblist, dbtmp, links);
  		}
  
  		/* Initialize the new entries. */