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