sitback.h

Linux系统备份源代码 可基于用户自定义策略实现系统、应用数据备份

/***************************************************************************
    file                 : sitback.h
    begin                : Wed Jan 26 2000
    copyright            : (C) 2000 by Henrik Witt-Hansen
    email                : [e-mail]
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

/***************************************************************************
     RETURN CODES

     0 = succes
     1 = invalid switch
     2 = unexpected data, already a previous script name
     3 = Script name exceeds 50 characters
     4 = Missing switch data
     5 = Invalid number format or overflow/underrun
     6 = Unterminated string or string too long
     7 = Invalid time-string
     8 = No backup/restore script
     9 = Unable to open temporary script
    10 = No arguments
    11 = Out of memory
    12 = No files to backup or restore
    13 = Error executing script
    14 = Filetype not allowed
    15 = Unable to list directory content
    16 = Unable to obtain directory entry
    17 = Unable to create temporary script
    18 = Daemon mode not allowed without time-string
    19 = Unable to start new thread for internal task
    20 = Unable to print to smb printer
    21 = Unable to locate smbclient from the samba package
    22 = Filename too long for internal code
    23 = Unable to print via 'lpr'
    24 = File not found
    25 = Create or overwrite not allowed for file
    26 = No archive name or device
    27 = Lock file detected
    28 = Unable to open device or create archive
    29 = Missing time-string
    30 = Unable to write archiveid to file
    31 = Unable to create database
    32 = Unable to create new entry in the database
    33 = Unable to open the archive list
    34 = Unable to open database file
    35 = Unable to open the archivename file
    36 = Invalid format in archivename file
    37 = Unable to rename database entry
    38 = Unable to set status of database entry
    39 = Updating or renaming archive id is not allowed in daemon mode
    40 = Unable to prepare exec argument's array
    41 = Unexpected system error
    42 = Unable to detect, or bad permissions in homedir
    43 = Missing Gnu tar
    44 = Missing gzip
    45 = Missing mt
    46 = (OBSOLETE) Unable to set lock for random seed file in <basedir>/var
    47 = Unable to open seed file in <basedir>/var
    48 = Unable to become a daemon
    49 = No archive name although needed
    50 = Archive or device no longer available
    51 = Argument is not a number
    52 = Number is out of range
    53 = Program reported an error
    54 = Unable to create fifo
    55 = Unknown compression tool
    56 = Unable to enter message loop
    57 = Compressed archives can not be updated
    58 = Unable to create exclude list
    59 = Unable to create directory needed for run-time housekeeping
    60 = Unable to open the excludelist file
    61 = Missing rsh
    62 = Duplicated switch
    63 = Invalid exclude list
    64 = Unable to get required environment variable.
    65 = Local and remote user mismatch.. (rsh requirement)
    66 = Env. Var. USER not set
    67 = Script parameter missing
    68 = Unable to get user info from /etc/passwd
    69 = Homedir does not exist
    70 = (OBSOLETE) User does not have read permission on homedir
    71 = (OBSOLETE) User does not have write permission on homedir
    72 = (OBSOLETE) User does not have execute permission on homedir
    73 = (OBSOLETE) User does not have read permission on ~/.sitback
    74 = (OBSOLETE) User does not have write permission on ~/.sitback
    76 = Unable to create .sitback directory
    77 = Unable to list .sitback directory
    78 = Error while trying to execute 'before' command
    79 = Error while trying to execute 'after' command
    80 = Unknown directive in script
    81 = Requested compression tool not available
    82 = Multi-volume archives can not be compressed
    83 = User does not have sufficient permissions on the homedirectory
    84 = User does not have sufficient permissions on the sitback homedirectory
    85 = User does not have sufficient permissions on a file
    86 = User does not have sufficient permissions on the specified archive or device
    87 = Conflicting configuration switches/keywords
    88 = Lockfile found
    89 = Unable to execute remote command
    90 = Remote device or file not allowed for filecopy based backup
    91 = Remote device or file not allowed for iso cdrom based backup
    92 = Missing 'mkisofs'
    93 = Missing 'cdrecord'
    94 = Remote device or file not allowed for tar based cd-r or cd-rw backup
    95 = Invalid tempfile location
    96 = Error while moving archive to cd.
    97 = Multiple volumes not allowed for the selected operation
    98 = Error while trying to open a file
    99 = Unable to open report file
   100 = Gnu Tar is version 1.13, which has the 'tapesize' bug.
   101 = zip is not available, but is required for this operation.
   254 = Internal error
   255 = Internal limitation, not implemented or debug-mode only

 ***************************************************************************/



#ifndef __SITBACK_H
  #define __SITBACK_H



/* Uncomment this if you are brave enough to allow sitback to
   run suid. Be warned..  this does not give users access
   to stuff they are not supposed to access, but it will
   give them access to devices and/or files anywhere
   on you system, so a stupid user can do massive damage,
   if he screws up..!!   Be warned...!!! */
//#define ALLOW_SUID



/* Enable or disable debugging per default */
//#define DEBUG



/* The libc getpwuid() function had some mysterious problems, if they are still
   present, then remove this define, to get a working replacement for getpwuid() */
#define LIBC_GETPWUID



/********************************************************************
  Non user-serviceable parts
********************************************************************/



/*we use threads in the code*/
#define _REENTRANT



/* non-serviceable parts of debug system */
extern int enable_dbg;
extern void __dbg(char *formatstring, ... );
#define DEBUG_DESTINATION "/tmp/sitback.debug"
//#define DEEP_DEBUG
#define debug __dbg("[%s %u]  ",__FILE__,__LINE__); __dbg



/*global defines*/
#define BACKUP        0
#define RESTORE       1
#define LIST          2
#define SINGLE        3
#define DAEMON        4
#define GZIP          5
#define BZIP2         6
#define COMPRESS      7
#define ZIP           8
#define TAR           0