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/* $OpenBSD: ex_preserve.c,v 1.7 2016/01/06 22:28:52 millert Exp $ */ |
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/*- |
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* Copyright (c) 1993, 1994 |
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* The Regents of the University of California. All rights reserved. |
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* Copyright (c) 1993, 1994, 1995, 1996 |
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* Keith Bostic. All rights reserved. |
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* |
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* See the LICENSE file for redistribution information. |
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*/ |
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#include "config.h" |
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#include <sys/types.h> |
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#include <sys/queue.h> |
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#include <bitstring.h> |
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#include <errno.h> |
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#include <limits.h> |
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#include <stdio.h> |
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#include <string.h> |
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#include "../common/common.h" |
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/* |
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* ex_preserve -- :pre[serve] |
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* Push the file to recovery. |
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* |
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* PUBLIC: int ex_preserve(SCR *, EXCMD *); |
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*/ |
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int |
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ex_preserve(SCR *sp, EXCMD *cmdp) |
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{ |
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recno_t lno; |
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NEEDFILE(sp, cmdp); |
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if (!F_ISSET(sp->ep, F_RCV_ON)) { |
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msgq(sp, M_ERR, "Preservation of this file not possible"); |
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return (1); |
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} |
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/* If recovery not initialized, do so. */ |
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if (F_ISSET(sp->ep, F_FIRSTMODIFY) && rcv_init(sp)) |
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return (1); |
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/* Force the file to be read in, in case it hasn't yet. */ |
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if (db_last(sp, &lno)) |
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return (1); |
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/* Sync to disk. */ |
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if (rcv_sync(sp, RCV_SNAPSHOT)) |
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return (1); |
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msgq(sp, M_INFO, "File preserved"); |
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return (0); |
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} |
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/* |
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* ex_recover -- :rec[over][!] file |
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* Recover the file. |
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* |
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* PUBLIC: int ex_recover(SCR *, EXCMD *); |
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*/ |
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int |
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ex_recover(SCR *sp, EXCMD *cmdp) |
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{ |
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ARGS *ap; |
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FREF *frp; |
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ap = cmdp->argv[0]; |
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/* Set the alternate file name. */ |
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set_alt_name(sp, ap->bp); |
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/* |
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* Check for modifications. Autowrite did not historically |
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* affect :recover. |
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*/ |
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if (file_m2(sp, FL_ISSET(cmdp->iflags, E_C_FORCE))) |
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return (1); |
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/* Get a file structure for the file. */ |
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if ((frp = file_add(sp, ap->bp)) == NULL) |
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return (1); |
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/* Set the recover bit. */ |
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F_SET(frp, FR_RECOVER); |
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/* Switch files. */ |
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if (file_init(sp, frp, NULL, FS_SETALT | |
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(FL_ISSET(cmdp->iflags, E_C_FORCE) ? FS_FORCE : 0))) |
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return (1); |
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F_SET(sp, SC_FSWITCH); |
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return (0); |
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} |