1/* $NetBSD: ex_preserve.c,v 1.1.1.2 2008/05/18 14:31:09 aymeric Exp $ */ 2 3/*- 4 * Copyright (c) 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * Copyright (c) 1993, 1994, 1995, 1996 7 * Keith Bostic. All rights reserved. 8 * 9 * See the LICENSE file for redistribution information. 10 */ 11 12#include "config.h" 13 14#ifndef lint 15static const char sccsid[] = "Id: ex_preserve.c,v 10.15 2001/06/25 15:19:18 skimo Exp (Berkeley) Date: 2001/06/25 15:19:18"; 16#endif /* not lint */ 17 18#include <sys/types.h> 19#include <sys/queue.h> 20 21#include <bitstring.h> 22#include <errno.h> 23#include <limits.h> 24#include <stdio.h> 25#include <string.h> 26 27#include "../common/common.h" 28 29/* 30 * ex_preserve -- :pre[serve] 31 * Push the file to recovery. 32 * 33 * PUBLIC: int ex_preserve __P((SCR *, EXCMD *)); 34 */ 35int 36ex_preserve(SCR *sp, EXCMD *cmdp) 37{ 38 db_recno_t lno; 39 40 NEEDFILE(sp, cmdp); 41 42 if (!F_ISSET(sp->ep, F_RCV_ON)) { 43 msgq(sp, M_ERR, "142|Preservation of this file not possible"); 44 return (1); 45 } 46 47 /* If recovery not initialized, do so. */ 48 if (F_ISSET(sp->ep, F_FIRSTMODIFY) && rcv_init(sp)) 49 return (1); 50 51 /* Force the file to be read in, in case it hasn't yet. */ 52 if (db_last(sp, &lno)) 53 return (1); 54 55 /* Sync to disk. */ 56 if (rcv_sync(sp, RCV_SNAPSHOT)) 57 return (1); 58 59 msgq(sp, M_INFO, "143|File preserved"); 60 return (0); 61} 62 63/* 64 * ex_recover -- :rec[over][!] file 65 * Recover the file. 66 * 67 * PUBLIC: int ex_recover __P((SCR *, EXCMD *)); 68 */ 69int 70ex_recover(SCR *sp, EXCMD *cmdp) 71{ 72 ARGS *ap; 73 FREF *frp; 74 const char *np; 75 size_t nlen; 76 77 ap = cmdp->argv[0]; 78 79 /* Set the alternate file name. */ 80 INT2CHAR(sp, ap->bp, ap->len+1, np, nlen); 81 set_alt_name(sp, np); 82 83 /* 84 * Check for modifications. Autowrite did not historically 85 * affect :recover. 86 */ 87 if (file_m2(sp, FL_ISSET(cmdp->iflags, E_C_FORCE))) 88 return (1); 89 90 /* Get a file structure for the file. */ 91 INT2CHAR(sp, ap->bp, ap->len+1, np, nlen); 92 if ((frp = file_add(sp, np)) == NULL) 93 return (1); 94 95 /* Set the recover bit. */ 96 F_SET(frp, FR_RECOVER); 97 98 /* Switch files. */ 99 if (file_init(sp, frp, NULL, FS_SETALT | 100 (FL_ISSET(cmdp->iflags, E_C_FORCE) ? FS_FORCE : 0))) 101 return (1); 102 103 F_SET(sp, SC_FSWITCH); 104 return (0); 105} 106