1 /* $OpenBSD: ex_preserve.c,v 1.5 2009/10/27 23:59:47 deraadt 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 #include <sys/types.h> 15 #include <sys/queue.h> 16 17 #include <bitstring.h> 18 #include <errno.h> 19 #include <limits.h> 20 #include <stdio.h> 21 #include <string.h> 22 23 #include "../common/common.h" 24 25 /* 26 * ex_preserve -- :pre[serve] 27 * Push the file to recovery. 28 * 29 * PUBLIC: int ex_preserve(SCR *, EXCMD *); 30 */ 31 int 32 ex_preserve(sp, cmdp) 33 SCR *sp; 34 EXCMD *cmdp; 35 { 36 recno_t lno; 37 38 NEEDFILE(sp, cmdp); 39 40 if (!F_ISSET(sp->ep, F_RCV_ON)) { 41 msgq(sp, M_ERR, "142|Preservation of this file not possible"); 42 return (1); 43 } 44 45 /* If recovery not initialized, do so. */ 46 if (F_ISSET(sp->ep, F_FIRSTMODIFY) && rcv_init(sp)) 47 return (1); 48 49 /* Force the file to be read in, in case it hasn't yet. */ 50 if (db_last(sp, &lno)) 51 return (1); 52 53 /* Sync to disk. */ 54 if (rcv_sync(sp, RCV_SNAPSHOT)) 55 return (1); 56 57 msgq(sp, M_INFO, "143|File preserved"); 58 return (0); 59 } 60 61 /* 62 * ex_recover -- :rec[over][!] file 63 * Recover the file. 64 * 65 * PUBLIC: int ex_recover(SCR *, EXCMD *); 66 */ 67 int 68 ex_recover(sp, cmdp) 69 SCR *sp; 70 EXCMD *cmdp; 71 { 72 ARGS *ap; 73 FREF *frp; 74 75 ap = cmdp->argv[0]; 76 77 /* Set the alternate file name. */ 78 set_alt_name(sp, ap->bp); 79 80 /* 81 * Check for modifications. Autowrite did not historically 82 * affect :recover. 83 */ 84 if (file_m2(sp, FL_ISSET(cmdp->iflags, E_C_FORCE))) 85 return (1); 86 87 /* Get a file structure for the file. */ 88 if ((frp = file_add(sp, ap->bp)) == NULL) 89 return (1); 90 91 /* Set the recover bit. */ 92 F_SET(frp, FR_RECOVER); 93 94 /* Switch files. */ 95 if (file_init(sp, frp, NULL, FS_SETALT | 96 (FL_ISSET(cmdp->iflags, E_C_FORCE) ? FS_FORCE : 0))) 97 return (1); 98 99 F_SET(sp, SC_FSWITCH); 100 return (0); 101 } 102