📄 init.c
字号:
/*************************************************************************** file : init.c begin : Sun Jan 30 2000 copyright : (C) 2000 by Henrik Witt-Hansen email : bean@daisy.net ***************************************************************************//*************************************************************************** * * * 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. * * * ***************************************************************************//*base configuration*/#ifdef HAVE_CONFIG_H#include <config.h>#endif/*standard includes*/#include <stdio.h>#include <stdlib.h>#include <unistd.h>#include <string.h>#include <sys/types.h>#include <sys/stat.h>#include <fcntl.h>#include <errno.h>#include <sys/stat.h>#include <pwd.h>#include <dirent.h>#include <time.h>/*local headers*/#include "sitback.h" /*local prototypes*/int __parse_args(int argc,char **argv);int __parse_timestring(char *timestring);int __parse_script();int __add_file(char *file);void __free_filelist();int __add_time(int dayofweek,int hour,int min);void __free_timelist();int __test_software();int __test_config_sanity();char *__get_local_user();void __dump_config();int __get_homedir();struct passwd *__getpwuid(uid_t uid); /* please read the function description */int __set_lock();void __clear_lock();/*Configuration*/char conf__script_name[51]=""; /*max 50 characters*/char conf__script_title[129]=""; /*max 128 characters*/int conf__mode=SINGLE; /*default dont be a daemon*/int conf__operation=BACKUP; /*default is BACKUP operation*/char conf__allow_multiple=0; /*Multiple volumes (the -M tar switch)*/int conf__volume_length=0; /*volume length (the -L tar switch)*/char conf__org_archive[257]=""; /* Original target device or filename*/char conf__archive[257]=""; /*target device or filename*/int conf__compress=0; /*Use compression (gzip)*/Tfilelist conf__filelist=NULL; /*pointer to somewhere in the filelist*/int conf__verify=1; /*Verify archive*/char conf__report_printer[257]="";char conf__smb_user[21]="";char conf__smb_passwd[21]="";long unsigned conf__archive_size=0; /*aprox. archive-size, uncompressed*/char conf__archive_name[257]="";char conf__report_name[257]="";int conf__ignore_time_info=0;char conf__archive_id[257]="";char conf__archive_oldid[257]="";Ttimelist conf__timelist=NULL;int conf__update_archiveinfo=0;int conf__skip_old_archiveinfo=0;char conf__tar_action='c';int conf__verbose=0;int conf__mt_device=0;int conf__non_rewind=0;int conf__retry=1; /*default is no retry*/char conf__tar[30]="";char conf__gzip[30]="";char conf__zip[30]="";char conf__bzip2[30]="";char conf__Zcompress[30]="";char conf__mt[60]="";char *conf__compressapp=NULL;int conf__compressor=0;char conf__start_mark[25]="";int conf__special_files=0;char conf__ps[30]="";int conf__curses=1;char conf__before[1024]="";char conf__after[1024]="";char *conf__exclude_files=NULL;char conf__rsh[256]="rsh";char conf__rhost[257]="";char conf__ruser[257]="";int conf__nice=0;char *conf__homedir=NULL;int conf__force_mt=0;int conf__force_not_mt=0;int conf__force_rewind=0;int conf__force_non_rewind=0;int conf__follow_symlinks=0;int conf__keep_lock=0;char conf__report_mail[256]="";char conf__smtp_host[256]="";char conf__smtp_user[350]="";char conf__smtp_pass[350]="";int conf__type=TAR;int conf__ignore_bad_symlinks=0;char conf__mkisofs[50]="";char conf__cdrecord[50]="";char conf__speed[256]="";int conf__fixate=0;char conf__buffersize[256]="";int conf__eject=0;int conf__cd_on_the_fly=0;char conf__temp[257]="";time_t conf__time_started;unsigned conf__archive_count=0;int conf__unattended=0;char conf__scriptdir[257]="";int conf__skip_lock=1;int conf__add_to_root=0;int conf__no_info=0;int conf__bad_symlinks=0;extern int errno;/*Magnetic tape devices, these must all be erased and retensioned before starting the backup*/char mt_devices[]="/dev/ftape /dev/rawft0 /dev/nrawft0 /dev/rft0 /dev/nrft0 /dev/qft0 /dev/nqft0 \ /dev/rawft1 /dev/nrawft1 /dev/rft1 /dev/nrft1 /dev/qft1 /dev/nqft1 \ /dev/rawft2 /dev/nrawft2 /dev/rft2 /dev/nrft2 /dev/qft2 /dev/nqft2 \ /dev/rawft3 /dev/nrawft3 /dev/rft3 /dev/nrft3 /dev/qft3 /dev/nqft3 \ /dev/ntpqic11 /dev/ntpqic120 /dev/ntpqic150 /dev/ntpqic24 \ /dev/nzqft0 /dev/nzqft1 /dev/nzqft2 /dev/nzqft3";/*Non rewinding devices, these must all be rewinded after use*/char non_rewinding[]="/dev/nrawft0 /dev/nrft0 /dev/nqft0 \ /dev/nst0 /dev/nst1 /dev/nst2 /dev/nst3 /dev/nst4 /dev/nst5 /dev/nst6 /dev/nst7 \ /dev/nrt0 /dev/nrt1 /dev/nrt2 /dev/nrt3 /dev/nrt4 /dev/nrt5 /dev/nrt6 /dev/nrt7 \ /dev/ntpqic11 /dev/ntpqic120 /dev/ntpqic150 /dev/ntpqic24 \ /dev/nzqft0 /dev/nzqft1 /dev/nzqft2 /dev/nzqft3";/******************************************************************** int init(int argc,char **argv) Initialize application. Read command-line and parse backup/restore script arguments: Standard main() arguments return: 0 on success -1 on error********************************************************************/int Init(int argc, char *argv[]){ int rc; /* Get our home directory (where we put temp. files) */ if(__get_homedir()==-1) { printf("Invalid home directory..\n"); errcode=42; return -1; } /*initialize log-file.*/ log("Sitback %s startup",VERSION); /*Parse the input arguments*/ if((rc=__parse_args(argc,argv))==-1) return errcode; /*we now know if we are supposed to be a daemon or not. If not, start the best available interface*/ if(conf__mode!=DAEMON) { /* do we want the nice ncurses interface, or only raw text ?? */ if(conf__curses) { if(UI__Init(argc,argv)==-1) printf("Failed to start ncurses interface. Fallback to text mode\n"); } if(conf__operation==BACKUP) { UI__ShowBackup(); UI__Message("Initializing\n"); } } /*Next, read the backup/restore script*/ if(__parse_script()) { UI__OkDlg("\nUnable to continue.."); return -1; } /*Make sure we have the software that is needed*/ debug("Testing software\n"); if(__test_software()==-1) { /*errcode and error message has been handled by the function*/ UI__OkDlg("\nUnable to continue.."); return -1; } /*make sanity check's and set implied flags.*/ debug("Testing configuration sanity\n"); if(__test_config_sanity()==-1) { /*errcode and error message has been handled by the function*/ UI__OkDlg("\nUnable to continue"); return -1; } /* dump configuration if debugging is on */ if(enable_dbg) __dump_config(); /* adjust nice level */ nice(conf__nice); /* check for a lock file */ if(__set_lock()) { debug("Lockfile exists...\n"); log("~/.sitback/!lock exists\n"); UI__OkDlg("\nFound an existing lockfile ~/.sitback/.lock\nIf you do not have another sitback running,\nremove the lockfile manually, then restart sitback\n"); errcode=88; return -1; } /*No problems*/ return 0;}/******************************************************************** int __parse_args(int argc,char **argv) Parse command line arguments arguments: Standard main() arguments return: number of arguments handled -1 on error number of arguments - 1 on success (first argument is the commandline and always present)********************************************************************/int __parse_args(int argc,char **argv){ int __argc=0; /*incremented for each arguments handled*/ char prev_switch=0; char *suffix; long int val; unsigned int count; char *p; for(__argc=1;__argc<argc;__argc++) { debug("checking argument %u\n",__argc); /*either a command-switch or command-data*/ if(argv[__argc][0]=='-' && (prev_switch==0 || prev_switch=='m' || prev_switch=='c')) { /*reset if used*/ prev_switch=0; debug("argument %u is switch '%c'\n",__argc,argv[__argc][1]); /*what action ??*/ switch(argv[__argc][1]) { case '\0': /*ignore*/ break; case '-': { if(!strcasecmp(argv[__argc],"--scriptdir")) { /* Next option must be the script directory */ prev_switch='s'; /* Let s symbolize this option */ debug("Expecting next argument to be scriptdir\n"); break; } if(!strcasecmp(argv[__argc],"--version")) { /* remove the lockfile */ __clear_lock(); exit(0); } else if(!strcasecmp(argv[__argc],"--help")) { /*special handling for this switch*/ printf("\n\n Sitback - The SImple Tar BACKup utility"); printf("\n ^^ ^ ^^^^\n\n"); printf("Backup operation: sitback [options] scriptname\n\n"); printf(" -a <archivename|devicename> : Use this archive or device instead\n"); printf(" of ARCHIVE from the script\n"); printf(" -b : Include special files in archive\n"); printf(" -c [bzip2|gzip|compress|zip] : Compress archive.\n"); printf(" If you want to control wich compression\n"); printf(" tool is used, give the tool-name here.\n"); printf(" -d : Run as daemon instead of just a single run\n"); printf(" -e : Do not verify the archive after backup.\n"); printf(" -h : Which 'rsh' to use for accessing remote\n"); printf(" devices. Usually this is either 'rsh' or\n"); printf(" 'ssh' but other remote shells can be used\n"); printf(" as long as they work the same way as rsh\n"); printf(" -i archive-id : Set the archive id to this string. (no\n"); printf(" blank spaces is allowed). The archive-id is\n"); printf(" updated or added, if no current archive\n"); printf(" exists, f.ex. on a tape, a archive is\n"); printf(" created. In any case, operation is stopped\n"); printf(" after updating the archive id so that the.\n"); printf(" archive is empty apart from the info\n"); printf(" -j <script or command> : Script or command to run before backup\n"); printf(" -k <script or command> : Script or command to run after backup\n"); printf(" -m [count][K|M] : Create multiple volumes.\n"); printf(" If a byte-count is given, volumes will be\n"); printf(" no larger than #count# bytes.\n"); printf(" 'K' or 'M' may be appended to indicate that\n"); printf(" count is in KB or MB. When no modifier is\n"); printf(" appended, the count should be an equal\n"); printf(" number of 1024B blocks.\n"); printf(" If no length is given, multiple volumes is\n"); printf(" only created if the first device has no\n"); printf(" more space on it.. The user will then be\n"); printf(" prompted for a new tape/disk. Multiple\n"); printf(" volumes is not allowed in daemon mode.\n"); printf(" Verification of backup is not possible if\n"); printf(" compression is used. The -e switch is \n"); printf(" silently appended.\n"); printf(" -n : Ignore the time-string, run now.\n"); printf(" -o : Follow symlinks. (include the content they\n"); printf(" link to instead of the symlink itself)\n"); printf(" -p : Increase 'nice' level (decrease priority)\n"); printf(" by this amount, allowed range for regular\n"); printf(" users: 0 to 19. if running as 'root', the\n"); printf(" allowed range is -20 to 19. Errors is\n"); printf(" silently corrected\n"); printf(" -q : Copy files instead of creating an archive.\n"); printf(" -s : Do not try to resolve archive-info before\n"); printf(" backup or update of archive-info.. This\n"); printf(" may result in database inconsistency\n"); printf(" such as incorrect content-list's or\n"); printf(" archive-id's no longer existing. Use only\n"); printf(" if you want to set archive-info such as a\n"); printf(" new id on a blank tape.\n\n"); printf(" -t timestring : Use this single time-string instead of TIME\n"); printf(" from the script. The time-string has the\n"); printf(" format... 'day of week number;hour;minute'\n"); printf(" Day of week number is 0(sun) to 6(sat).\n"); printf(" Ex. \"1,3,5;02;30\", mon, wed, fri, at 02.30.\n"); printf(" -u : Update archive files that have changed, do\n"); printf(" not recreate the archive from scratch.\n"); printf(" -x : A list of files or directorys to exclude\n"); printf(" from the backup. File-/directorynames must\n"); printf(" be separated by commas and no blankspaces.\n"); printf(" -y [number] : Retry operation if there is an error.\n"); printf(" This might be a good idea if you are using\n"); printf(" an older buggy or dirty drive.\n"); printf(" Default is no retry (0), but retry may be\n"); printf(" set to a number in the range 0;9\n"); printf(" -v : Archive to CDR device\n"); printf(" -w : Archive to CDRW device (blank before write)\n"); printf(" -z : Archive to iso file\n"); printf(" --norewind : Archive|Device is non-rewinding\n"); printf(" --rewind : Archive|Device is rewinding\n"); printf(" --nomt : Archive|Device is not a magnetic tape\n"); printf(" --mt : Archive|Device is a magnetic tape\n"); printf("\n\n\n"); printf("Restore operation: sitback -r <scriptname>\n\n"); printf(" Restore has not yet been implemented. But the archives is regular tar\n"); printf(" archives, so you may use 'tar -x -P -f archivename|devicename to restore\n"); printf(" the content of the archive.\n"); printf("\n\n\n"); printf("List operation: sitback -l [scriptname]\n\n"); printf(" List operation has not yet been implemented.\n"); printf("\n\n\n"); printf("Other options: sitback option [data]\n\n"); printf(" -f : Disable curses based interface..\n"); printf(" -g : Enable debug messages ('%s')\n",DEBUG_DESTINATION); printf(" --help : Show this help screen. (You may want\n"); printf(" to do.. 'sitback -h | more')\n"); printf(" --scriptdir <dir> : Look for the script in this directory\n"); printf(" --lock : Prevent parallel sitback instances\n"); printf(" --version : Show version.\n"); printf(" --verbose : Make any operation more verbose\n\n"); /* remove the lockfile */ __clear_lock(); exit(0); } else if(!strcmp(&argv[__argc][2],"nonrewind")) { if(conf__force_rewind) { printf("Already forcing device to be rewinding..\n"); errcode=87; return -1; } conf__force_non_rewind=1; } else if(!strcmp(&argv[__argc][2],"rewind")) { if(conf__force_non_rewind) { printf("Already forcing device to be non-rewinding..\n"); errcode=87; return -1; } conf__force_rewind=1; } else if(!strcmp(&argv[__argc][2],"nomt")) { if(conf__force_mt) { printf("Already forcing device to be an mt-device..\n"); errcode=87; return -1; } conf__force_not_mt=1; } else if(!strcmp(&argv[__argc][2],"mt")) { if(conf__force_not_mt) { printf("Already forcing device not to be an mt-device..\n"); errcode=87; return -1; } conf__force_mt=1; } else if(!strcmp(&argv[__argc][2],"verbose")) { conf__verbose=1; } else if(!strcmp(&argv[__argc][2],"lock")) { conf__skip_lock=0; } else { errcode=1;⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -