init.c

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

        /* extract the host name */
        strcpy(conf__rhost,p);
        p=conf__rhost;
        while(*p!=':')
          p++;
        *p='\0';


        /* done */
        debug("Archive is remote. Host name is '%s', user name is '%s'\n",conf__rhost,conf__ruser);
      }
      else
      {
        debug("Archive is local\n");
      }


      /*next command*/
      p=end;
    }


    /*Keyword 'FILE'*/
    if(!strncasecmp(p,"TARGET=",7))
    {
      debug("found keyword 'TARGET' at position %d\n",p-buffer);


      /*end of command*/
      end=p;
      while(*end!='\0' && *end!='\n' && *end!='\r')
        end++;


      /*add this file or directory to the list*/
      p+=7;
      prev_char=*end;
      *end='\0';
      if(__add_file(p)==-1)
      {
        __free_filelist();  /*dont forget to cleanup any previous entry's in the list*/
        free(buffer);
        errcode=13;
        /*error message has been given by the __add_file() function*/
        return -1;
      }
      *end=prev_char;


      /*next command*/
      p=end;
    }


    /*Keyword 'PRINTERNAME'*/
    if(!strncasecmp(p,"REPORTPRINTER=",14))
    {
      debug("found keyword 'REPORTPRINTER' at position %d\n",p-buffer);


      /*end of command*/
      end=p;
      while(*end!='\0' && *end!='\n' && *end!=' ' && *end!='\r')
        end++;

      /*make sure the string dont exceed 256 characters*/
      if((end-p-14)>256)
      {
        free(buffer);
        errcode=6;
        sprintf(strn,"REPORTPRINTER string in script is too long. Maximum 256 characters\n");
        UI__Warning(strn);
        return -1;
      }


      /*set the printername*/
      memcpy(conf__report_printer,p+14,end-p-14);
      conf__report_printer[end-p-14]='\0';
      debug("report printername set to \"%s\"\n",conf__report_printer);


      /*next command*/
      p=end;
    }


    /*Keyword 'FILENAME'.*/
    if(!strncasecmp(p,"REPORTFILE=",11))
    {
      debug("found keyword 'REPORTFILE' at position %d\n",p-buffer);


      /*end of command*/
      end=p;
      while(*end!='\0' && *end!='\n' && *end!=' ' && *end!='\r')
        end++;

      /*make sure the string dont exceed 256 characters*/
      if((end-p-11)>256)
      {
        free(buffer);
        errcode=6;
        sprintf(strn,"REPORTFILE string in script is too long. Maximum 256 characters\n");
        UI__Warning(strn);
        return -1;
      }


      /*set report filename*/
      memcpy(conf__report_name,p+11,end-p-11);
      conf__report_name[end-p-11]='\0';
      debug("report filename set to \"%s\"\n",conf__report_name);


      /*next command*/
      p=end;
    }


    /*Keyword 'SMBUSER'*/
    if(!strncasecmp(p,"SMBUSER=",8))
    {
      debug("found keyword 'SMBUSER' at position %d\n",p-buffer);


      /*end of command*/
      end=p;
      while(*end!='\0' && *end!='\n' && *end!=' ' && *end!='\r')
        end++;

      /*make sure the string dont exceed 256 characters*/
      if((end-p-8)>20)
      {
        free(buffer);
        errcode=6;
        sprintf(strn,"SMBUSER string in script is too long. Maximum 20 characters\n");
        UI__Warning(strn);
        return -1;
      }


      /*set the printertype*/
      memcpy(conf__smb_user,p+8,end-p-8);
      conf__smb_user[end-p-8]='\0';
      debug("smbuser set to \"%s\"\n",conf__smb_user);


      /*next command*/
      p=end;
    }


    /*Keyword 'SMBPASSWORD'*/
    if(!strncasecmp(p,"SMBPASSWORD=",12))
    {
      debug("found keyword 'SMBPASSWORD' at position %d\n",p-buffer);


      /*end of command*/
      end=p;
      while(*end!='\0' && *end!='\n' && *end!=' ' && *end!='\r')
        end++;

      /*make sure the string dont exceed 256 characters*/
      if((end-p-12)>20)
      {
        free(buffer);
        errcode=6;
        sprintf(strn,"SMBPASSWD string in script is too long. Maximum 20 characters\n");
        UI__Warning(strn);
        return -1;
      }


      /*set the printertype*/
      memcpy(conf__smb_passwd,p+12,end-p-12);
      conf__smb_passwd[end-p-10]='\0';
      debug("smbpasswd set to \"%s\"\n",conf__smb_passwd);


      /*next command*/
      p=end;
    }


    /*Keyword 'COMPRESSOR=GZIP'*/
    if(!strncasecmp(p,"COMPRESSOR=GZIP",15))
    {
      /*force gzip compression*/
      if(conf__compressor==0)
        conf__compressor=GZIP;


      /*end of command*/
      while(*p!='\0' && *p!='\n' && *p!=' ' && *p!='\r')
        p++;
    }


    /*Keyword 'COMPRESSOR=BZIP2'*/
    if(!strncasecmp(p,"COMPRESSOR=BZIP2",16))
    {
      /*force gzip compression*/
      if(conf__compressor==0)
        conf__compressor=BZIP2;


      /*end of command*/
      while(*p!='\0' && *p!='\n' && *p!=' ' && *p!='\r')
        p++;
    }


    /*Keyword 'COMPRESSOR=ZIP'*/
    if(!strncasecmp(p,"COMPRESSOR=ZIP",14))
    {
      /*force zip compression*/
      if(conf__compressor==0)
        conf__compressor=ZIP;


      /*end of command*/
      while(*p!='\0' && *p!='\n' && *p!=' ' && *p!='\r')
        p++;
    }


    /*Keyword 'COMPRESSOR=COMPRESS'*/
    if(!strncasecmp(p,"COMPRESSOR=COMPRESS",19))
    {
      /*force gzip compression*/
      if(conf__compressor==0)
        conf__compressor=COMPRESS;


      /*end of command*/
      while(*p!='\0' && *p!='\n' && *p!=' ' && *p!='\r')
        p++;
    }


    /*Keyword 'COMPRESSION=YES'*/
    if(!strncasecmp(p,"COMPRESSION=YES",15))
    {
      debug("found keyword 'COMPRESSION=YES' at position %d\n",p-buffer);


      /*end of command*/
      end=p;
      while(*end!='\0' && *end!='\n' && *end!=' ' && *end!='\r')
        end++;

      /*Use compression*/
      conf__compress=1;

      /*next command*/
      p=end;
    }


    /*Keyword 'COMPRESSION=NO'*/
    if(!strncasecmp(p,"COMPRESSION=NO",14))
    {
      debug("found keyword 'COMPRESSION=NO' at position %d\n",p-buffer);


      /*end of command*/
      end=p;
      while(*end!='\0' && *end!='\n' && *end!=' ' && *end!='\r')
        end++;

      /*Dont use compression*/
      if(conf__compress)
      {
        debug("Command line request for compression overrides COMPRESSION=NO in script\n");
      }
      else
        conf__compress=0;


      /*next command*/
      p=end;
    }


    /*Keyword 'NO VERIFY'*/
    if(!strncasecmp(p,"VERIFY=NO",9))
    {
      debug("found keyword 'VERIFY=NO' at position %d\n",p-buffer);


      /*end of command*/
      end=p;
      while(*end!='\0' && *end!='\n' && *end!=' ' && *end!='\r')
        end++;

      /* dont verify archive */
      conf__verify=0;

      /*next command*/
      p=end;
    }


    /*Keyword 'VERIFY=YES'*/
    if(!strncasecmp(p,"VERIFY=YES",10))
    {
      debug("found keyword 'VERIFY=YES' at position %d\n",p-buffer);


      /*end of command*/
      end=p;
      while(*end!='\0' && *end!='\n' && *end!=' ' && *end!='\r')
        end++;

      /*dont override the command-line request for skipping verification*/
      if(conf__verify==0)
      {
        debug("not overriding command-line request for no verification\n");
      }
      else
        conf__verify=1;


      /*next command*/
      p=end;
    }


    /*Keyword 'VERIFY=STRICT'*/
    if(!strncasecmp(p,"VERIFY=STRICT",13))
    {
      debug("found keyword 'VERIFY=STRICT' at position %d\n",p-buffer);


      /*end of command*/
      end=p;
      while(*end!='\0' && *end!='\n' && *end!=' ' && *end!='\r')
        end++;

      /*dont override the command-line request for skipping verification*/
      if(conf__verify==0)
      {
        debug("not overriding command-line request for no verification\n");
      }
      else
        conf__verify=2;


      /*next command*/
      p=end;
    }


    /*Keyword 'VERIFY=LAZY'*/
    if(!strncasecmp(p,"VERIFY=LAZY",11))
    {
      debug("found keyword 'VERIFY=LAZY' at position %d\n",p-buffer);


      /*end of command*/
      end=p;
      while(*end!='\0' && *end!='\n' && *end!=' ' && *end!='\r')
        end++;

      /*dont override the command-line request for skipping verification*/
      if(conf__verify==0)
      {
        debug("not overriding command-line request for no verification\n");
      }
      else
        conf__verify=3;


      /*next command*/
      p=end;
    }


    /*Keyword 'MULTIPLE VOLUMES'*/
    if(!strncasecmp(p,"MULTIPLE VOLUMES",16))
    {
      debug("found keyword 'MULTIPLE VOLUMES' at position %d\n",p-buffer);


      /*end of command*/
      end=p;
      while(*end!='\0' && *end!='\n' && *end!='\r')
        end++;

      /* Allow multiple volumes */
      conf__allow_multiple=1;

      /*next command*/
      p=end;
    }


    /*Keyword 'LENGTH'*/
    if(!strncasecmp(p,"VOLUMELENGTH=",13))
    {
      debug("found keyword 'VOLUMELENGTH' at position %d\n",p-buffer);


      /*get the volume-length*/
      val=strtol(p+13,&suffix,10);

      /*make sure we got a valid number*/
      if(val==0)
      {
        errcode=5;
        UI__Warning("Volume length of 0 bytes is not allowed\n");
        return -1;
      }
      if(!memcmp(p+13,suffix,1))
      {
        errcode=5;
        UI__Warning("Invalid volume length. (not a decimal number)\n");
        return -1;
      }

      /*adjust the value to fit the -l tar switch*/
      if(*suffix=='k' || *suffix=='K')
        val=val;
      else if(*suffix=='m' || *suffix=='M')
        val=val*1024;
      else
      {
        if(val%1024)
        {
          /*check if we did not get a valid number of bytes*/
          errcode=5;
          UI__Warning("Volume length must be X*1024 bytes\n");
          return -1;
        }

        /*calculate block-count*/
        val/=1024;
      }

      /*store the block-count*/
      if(conf__volume_length==0)
      {
        conf__volume_length=(int) val;
        debug("Volume length is %d\n",conf__volume_length);
        conf__allow_multiple=1;
      }
      else
      {
        debug("Will not override volumelength from command-line\n");
      }


      /*end of command*/
      end=p;
      while(*end!='\0' && *end!='\n' && *end!=' ' && *end!='\r')
        end++;


      /*next command*/
      p=end;
    }


    /*Keyword 'RETRY'*/
    if(!strncasecmp(p,"RETRY=",6))
    {
      debug("found keyword 'RETRY' at position %d\n",p-buffer);


      /*check if the retry count is valid*/
      if(p[6]<'0' || p[6]>'9')
      {
        errcode=51;
        sprintf(strn,"Retry count '%c' is not a number\n",p[6]);
        UI__Warning(strn);
        return -1;
      }
      if(p[7]!='\n' && p[7]!=' ' && p[7]!='\0')
      {
        errcode=52;
        sprintf(strn,"Retry count should be in the range [0;9]\n");
        UI__Warning(strn);
        return -1;
      }