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/* 0 */
/**************************************************************************/
/*
/* MODULE NAME : RESTORE utility
/*
/* SOURCE FILE NAME: RESTORE.C
/*
/* DESCRIPTIVE NAME : Restore one or more backed-up files from a
/* disk to another disk
/*
/* FUNCTION: Restore files saved by BACKUP utility to their
/* destination disk. This utility will be able to identify
/* which of the two backup formats was used and to do the
/* restore accordingly.
/*
/* NOTES: This RESTORE utility recognize two data formats:
/* 1. The data format used by BACKUP utility of 3.2 and before.
/* 2. The data format used by BACKUP utility of 3.3 and above,
/* and also used by CP/DOS 1.0 and above.
/*
/* DEPENDENCY:
/* This utility has a dependency on the BACKUP utility to
/* perform file backup correctly using the data structure
/* agreed on.
/*
/* RESTRICTION:
/* This utility is able to restore the files which are previously
/* backup by the BACKUP utility only.
/*
/* ENTRY POINT: Main
/*
/* INPUT: (PARAMETERS)
/*
/* COMMAND SYNTAX:
/* [d:][path]Restore d: [d:][path][filename][.ext]
/* [/S] [/P] [/B:date] [/A:date] [/E:time][/L:time][/M] [/N]
/*
/* Parameters:
/* The first parameter you specify is the drive designator of
/* the disk containing the backed up files. The second
/* parameter is the a filespec indicating which files you want
/* to restore.
/* Switches:
/* /S - Restore subdirectories too.
/* /P - If any hidden or read-only files match the filespec,
/* prompt the user for permission to restore them.
/* /B - Only restore those files which were last Revised on or
/* before the given date.
/* /A - Only restore those files which were last Revised on or
/* after the given date.
/* /E - Only restore those files which were last Revised at or
/* earlier then the given time.
/* /L - Only restore those files which were last Revised at or
/* later then the given time.
/* /M - Only restore those files which have been Revised since
/* the last backup.
/* /N - Only restore those files which no longer exist on the
/* destination disk.
/*
/* EXIT-ERROR:
/* The restore program sets the ERRORLEVEL in the following manner:
/*
/* 0 Normal completion
/* 1 No files were found to backup
/* 2 Some files not restored due to sharing conflict
/* 3 Terminated by user
/* 4 Terminated due to error
/*
/*
/* SOURCE HISTORY:
/*
/* Modification History:
/*
/* Code added in DOS 3.3 to allow control file > 64k commented as:
/* /* !wrw */
/*
/* ;AN000; Code added in DOS 4.0
/* ;AN000;2 Support for APPEND /X deactivation
/* ;AN000;3 Support for Extended Attributes
/* ;AN000;4 Support for PARSE service routines
/* ;AN000;5 Support for code page file tags
/* ;AN000;6 Support for MESSAGE retriever
/* ;AN000;8 Eliminate double prompting on single drive systems
/* ;AN000;9 Fix for termination on "Unable to MKDIR"
/* ;AN000;10 Fix for p1620
/* ;AN001; Add CR, LF to end of command line
/* ;AN002; Make parser errors display the offending parameter
/* ;AN003; Only disallow restore of system files in ROOT !!
/* ;AN004; Fix parser
/* ;AN005; Replace COM_STRRCHR dbcs routine, fixes p5029
/***************** END OF SPECIFICATION *********************************/
#include "rt.h"
#include "rt1.h"
#include "rt2.h"
#include "restpars.h" /*;AN000;4*/
#include "dos.h" /*;AN000;2*/
#include "comsub.h" /* common subroutine def'n */
#include "doscalls.h"
#include "error.h"
BYTE destddir[MAXPATH+3] = {'\0'};
BYTE srcddir[MAXPATH+3] = {'\0'};
BYTE rtswitch=0;
BYTE control_flag=0;
BYTE control_flag2=0;
BYTE *buf_pointer;
/*=============================*/
BYTE srcd; /*;AN000;4*/
BYTE destd; /*;AN000;4*/
BYTE inpath [MAXPATH]; /*;AN000;*/
BYTE infname [MAXFNAME]; /*;AN000;*/
BYTE infext [MAXFEXT]; /*;AN000;*/
BYTE infspec [MAXFSPEC]; /*;AN000;*/
/*=============================*/
/*---------------------------------------*/
/*- */
/*- Data structures for the PARSER */
/*- */
/*---------------------------------------*/
struct subst_list sublist; /*;AN000;6 Message substitution list */
char response_buff[5]; /*;AN000;6 User response buffer *//*;AN000;6*/
BYTE append_indicator = 0xff; /*;AN000;2 Indicates the support for APPEND /X is active */
WORD original_append_func; /*;AN000;2 APPEND functions on program entry*/
struct timedate td;
/***************** START OF SPECIFICATION *********************************/
/*
/* SUBROUTINE NAME : Main
/*
/* DESCRIPTIVE NAME : Main routine for RESTORE utility
/*
/* FUNCTION: Main routine does the following:
/* 1. Verifies the DOS version
/* 2. Validate the input command line
/* 3. Calls dorestore to do the file restore.
/*
/* NOTES:
/*
/* ENTRY POINT: Main
/* Linkage: main((argc,argv)
/*
/* INPUT: (PARAMETERS)
/* argc - number of arguments
/* argv - array of pointers to arguments
/*
/* EFFECTS: rtswitch is changed to reflect the switches passed.
/*
/********************** END OF SPECIFICATIONS *******************************/
void main(argc,argv) /* wrw! */
int argc;
char *argv[];
{
WORD retcode;
union REGS inregs,outregs; /*AN000*/
WORD i; /*loop counter */
WORD j; /*arrary subcript */
BYTE *c;
DWORD drive_map;
DWORD prev_address;
WORD prev_action;
/**********************************/
/** PRELOAD MESSAGES **/
/**********************************/
sysloadmsg(&inregs,&outregs); /*;AN000;6 Preload messages */
if (outregs.x.cflag & CARRY) /*;AN000;6 If there was an error */
{ /*;AN000;6*/
sysdispmsg(&outregs,&outregs); /*;AN000;6 Display the error message */
exit_routine(UNEXPECTED); /*;AN000;6 and terminate */
} /*;AN000;6*/
/*********************************************/
/* Parse the drive and file name entered */
/*********************************************/
parse_command_line /*;AN000;4*/
( /*;AN000;4*/
argc, /*;AN000;4*/
argv /*;AN000;4*/
); /*;AN000;4*/
/*********************************************/
/* Make sure APPEND /X is not active */
/*********************************************/
check_appendX(); /*;AN000;2 */
/*********************************************/
/* Take control of Control Break Interrupt */
/*********************************************/
retcode = DOSSETSIGHANDLER
(
(void far *)signal_handler_routine, /* Signal handler address */
(DWORD far *)&prev_address, /* Address of previous handler */
(unsigned far *)&prev_action, /* Address of previous action */
(unsigned)INSTALL_SIGNAL, /* Indicate request type */
(unsigned)CTRL_C /* Signal number */
);
retcode = DOSSETSIGHANDLER
(
(void far *)signal_handler_routine, /* Signal handler address */
(DWORD far *)&prev_address, /* Address of previous handler */
(unsigned far *)&prev_action, /* Address of previous action */
(unsigned)INSTALL_SIGNAL, /* Indicate request type */
(unsigned)CTRL_BREAK /* Signal number */
);
/*********************************/
/* Take control of Hard Errors */
/*********************************/
set_int24_vector(); /*;AN000; Set Critical error vector (int 24h) */
/************************************************************/
/* call dorestore (RTDO.C) to actually do the restoring */
/************************************************************/
dorestore(srcd,destd,inpath,infname,infext,infspec,&td);
/************************************************************/
/* output a msg in the following situations: */
/* if flag indicates no file found */
/************************************************************/
if (set_reset_test_flag(&control_flag,FOUND,TEST)==FALSE)
{
/*warning! No files were found to restore*/
display_it(NO_FILE_TO_RESTORE,STND_ERR_DEV,0,NO_RESPTYPE,(BYTE)UTIL_MSG); /*;AN000;6*/
exit_routine(NOFILES);
}
exit_routine(NORMAL);
} /* end of main*/
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