src/rrd_tool.c

   1 /*****************************************************************************
   2  * RRDtool 1.2rc8  Copyright by Tobi Oetiker, 1997-2005
   3  *****************************************************************************
   4  * rrd_tool.c  Startup wrapper
   5  *****************************************************************************/
   6
   7 #include "rrd_tool.h"
   8 #include "rrd_xport.h"
   9
  10 void PrintUsage(char *cmd);
  11 int CountArgs(char *aLine);
  12 int CreateArgs(char *, char *, int, char **);
  13 int HandleInputLine(int, char **, FILE*);
  14 int RemoteMode=0;
  15 int ChangeRoot=0;
  16 #define TRUE            1
  17 #define FALSE           0
  18 #define MAX_LENGTH      10000
  19
  20
  21 void PrintUsage(char *cmd)
  22 {
  23
  24     char help_main[] =
  25            "RRDtool 1.2rc8  Copyright 1997-2005 by Tobias Oetiker <tobi@oetiker.ch>\n"
  26 #if defined(WIN32) && !defined(__CYGWIN__) && !defined(__CYGWIN32__)
  27            "               Compiled " __DATE__ " " __TIME__ "\n\n"
  28 #else
  29            "               Compiled " MAKE_TIMESTAMP "\n\n"
  30 #endif
  31            "Usage: rrdtool [options] command command_options\n\n";
  32
  33     char help_list[] =
  34            "Valid commands: create, update, updatev, graph, dump, restore,\n"
  35            "\t\tlast, first, info, fetch, tune, resize, xport\n\n";
  36
  37     char help_listremote[] =
  38            "Valid remote commands: quit, ls, cd, mkdir\n\n";
  39
  40
  41     char help_create[] =
  42            "* create - create a new RRD\n\n"
  43            "\trrdtool create filename [--start|-b start time]\n"
  44            "\t\t[--step|-s step]\n"
  45            "\t\t[DS:ds-name:DST:dst arguments]\n"
  46            "\t\t[RRA:CF:cf arguments]\n\n";
  47
  48     char help_dump[] =
  49            "* dump - dump an RRD to XML\n\n"
  50            "\trrdtool dump filename.rrd >filename.xml\n\n";
  51
  52     char help_info[] =
  53            "* info - returns the configuration and status of the RRD\n\n"
  54            "\trrdtool info filename.rrd\n\n";
  55
  56     char help_restore[] =
  57            "* restore - restore an RRD file from its XML form\n\n"
  58            "\trrdtool restore [--range-check|-r] [--force-overwrite|-f] filename.xml filename.rrd\n\n";
  59
  60     char help_last[] =
  61            "* last - show last update time for RRD\n\n"
  62            "\trrdtool last filename.rrd\n\n";
  63
  64     char help_first[] =
  65            "* first - show first update time for RRA within an RRD\n\n"
  66            "\trrdtool first filename.rrd [--rraindex number]\n\n";
  67
  68     char help_update[] =
  69            "* update - update an RRD\n\n"
  70            "\trrdtool update filename\n"
  71            "\t\t--template|-t ds-name:ds-name:...\n"
  72            "\t\ttime|N:value[:value...]\n\n"
  73            "\t\tat-time@value[:value...]\n\n"
  74            "\t\t[ time:value[:value...] ..]\n\n";
  75
  76         char help_updatev[] =
  77            "* updatev - a verbose version of update\n"
  78            "\treturns information about values, RRAs, and datasources updated\n\n"
  79            "\trrdtool updatev filename\n"
  80            "\t\t--template|-t ds-name:ds-name:...\n"
  81            "\t\ttime|N:value[:value...]\n\n"
  82            "\t\tat-time@value[:value...]\n\n"
  83            "\t\t[ time:value[:value...] ..]\n\n";
  84
  85     char help_fetch[] =
  86            "* fetch - fetch data out of an RRD\n\n"
  87            "\trrdtool fetch filename.rrd CF\n"
  88            "\t\t[--resolution|-r resolution]\n"
  89            "\t\t[--start|-s start] [--end|-e end]\n\n";
  90
  91 /* break up very large strings (help_graph, help_tune) for ISO C89 compliance*/
  92
  93     char help_graph1[] =
  94            "* graph - generate a graph from one or several RRD\n\n"
  95            "\trrdtool graph filename [-s|--start seconds] [-e|--end seconds]\n"
  96            "\t\t[-x|--x-grid x-axis grid and label]\n"
  97            "\t\t[--alt-y-grid]\n"
  98            "\t\t[-y|--y-grid y-axis grid and label]\n"
  99            "\t\t[-v|--vertical-label string] [-w|--width pixels]\n"
 100            "\t\t[-h|--height pixels] [-o|--logarithmic]\n"
 101            "\t\t[-u|--upper-limit value] [-z|--lazy]\n"
 102            "\t\t[-l|--lower-limit value] [-r|--rigid]\n"
 103            "\t\t[-g|--no-legend]\n"
 104            "\t\t[-F|--force-rules-legend]\n";
 105     char help_graph2[] =
 106            "\t\t[-j|--only-graph]\n"
 107            "\t\t[--font FONTTAG:size:font]\n"
 108            "\t\t[--zoom factor]\n"
 109            "\t\t[--alt-autoscale]\n"
 110            "\t\t[--alt-autoscale-max]\n"
 111            "\t\t[--no-gridfit]\n"
 112            "\t\t[--units-exponent value]\n"
 113            "\t\t[--units-length value]\n"
 114            "\t\t[--step seconds]\n"
 115            "\t\t[-f|--imginfo printfstr]\n"
 116            "\t\t[-a|--imgformat PNG]\n"
 117            "\t\t[-c|--color COLORTAG#rrggbb[aa]] [-t|--title string]\n";
 118     char help_graph3[] =
 119            "\t\t[DEF:vname=rrd:ds-name:CF]\n"
 120            "\t\t[CDEF:vname=rpn-expression]\n"
 121            "\t\t[VDEF:vdefname=rpn-expression]\n"
 122            "\t\t[PRINT:vname:CF:format]\n"
 123            "\t\t[GPRINT:vname:CF:format]\n"
 124            "\t\t[PRINT:vdefname:format]\n"
 125            "\t\t[GPRINT:vdefname:format]\n"
 126            "\t\t[HRULE:value#rrggbb[aa][:legend]]\n"
 127            "\t\t[VRULE:value#rrggbb[aa][:legend]]\n"
 128            "\t\t[LINE{1|2|3}:vname[#rrggbb[aa][:legend]][:STACK]]\n"
 129            "\t\t[AREA:vname[#rrggbb[aa][:legend]][:STACK]]\n"
 130            "\t\t[STACK:vname[#rrggbb[aa][:legend]]]\n\n";
 131
 132     char help_tune1[] =
 133            " * tune -  Modify some basic properties of an RRD\n\n"
 134            "\trrdtool tune filename\n"
 135            "\t\t[--heartbeat|-h ds-name:heartbeat]\n"
 136            "\t\t[--data-source-type|-d ds-name:DST]\n"
 137            "\t\t[--data-source-rename|-r old-name:new-name]\n"
 138            "\t\t[--minimum|-i ds-name:min] [--maximum|-a ds-name:max]\n"
 139            "\t\t[--deltapos scale-value] [--deltaneg scale-value]\n"
 140            "\t\t[--failure-threshold integer]\n"
 141            "\t\t[--window-length integer]\n"
 142            "\t\t[--alpha adaptation-parameter]\n";
 143     char help_tune2[] =
 144            " * tune -  Modify some basic properties of an RRD\n\n"
 145            "\t\t[--beta adaptation-parameter]\n"
 146            "\t\t[--gamma adaptation-parameter]\n"
 147            "\t\t[--gamma-deviation adaptation-parameter]\n"
 148            "\t\t[--aberrant-reset ds-name]\n\n";
 149
 150     char help_resize[] =
 151            " * resize - alter the length of one of the RRAs in an RRD\n\n"
 152            "\trrdtool resize filename rranum GROW|SHRINK rows\n\n";
 153
 154     char help_xport[] =
 155            "* xport - generate XML dump from one or several RRD\n\n"
 156            "\trrdtool xport [-s|--start seconds] [-e|--end seconds]\n"
 157            "\t\t[-m|--maxrows rows]\n"
 158            "\t\t[--step seconds]\n"
 159            "\t\t[DEF:vname=rrd:ds-name:CF]\n"
 160            "\t\t[CDEF:vname=rpn-expression]\n"
 161            "\t\t[XPORT:vname:legend]\n\n";
 162
 163     char help_quit[] =
 164            " * quit - closing a session in remote mode\n\n"
 165            "\trrdtool quit\n\n";
 166
 167     char help_ls[] =
 168            " * ls - lists all *.rrd files in current directory\n\n"
 169            "\trrdtool ls\n\n";
 170
 171     char help_cd[] =
 172            " * cd - changes the current directory\n\n"
 173            "\trrdtool cd new directory\n\n";
 174
 175     char help_mkdir[] =
 176            " * mkdir - creates a new directory\n\n"
 177            "\trrdtool mkdir newdirectoryname\n\n";
 178
 179     char help_lic[] =
 180            "RRDtool is distributed under the Terms of the GNU General\n"
 181            "Public License Version 2. (www.gnu.org/copyleft/gpl.html)\n\n"
 182
 183            "For more information read the RRD manpages\n\n";
 184
 185     enum { C_NONE, C_CREATE, C_DUMP, C_INFO, C_RESTORE, C_LAST, C_FIRST,
 186            C_UPDATE, C_FETCH, C_GRAPH, C_TUNE, C_RESIZE, C_XPORT,
 187            C_QUIT, C_LS, C_CD, C_MKDIR, C_UPDATEV };
 188
 189     int help_cmd = C_NONE;
 190
 191     if (cmd)
 192         {
 193             if (!strcmp(cmd,"create"))
 194                 help_cmd = C_CREATE;
 195             else if (!strcmp(cmd,"dump"))
 196                 help_cmd = C_DUMP;
 197             else if (!strcmp(cmd,"info"))
 198                 help_cmd = C_INFO;
 199             else if (!strcmp(cmd,"restore"))
 200                 help_cmd = C_RESTORE;
 201             else if (!strcmp(cmd,"last"))
 202                 help_cmd = C_LAST;
 203             else if (!strcmp(cmd,"first"))
 204                 help_cmd = C_FIRST;
 205             else if (!strcmp(cmd,"update"))
 206                 help_cmd = C_UPDATE;
 207             else if (!strcmp(cmd,"updatev"))
 208                 help_cmd = C_UPDATEV;
 209             else if (!strcmp(cmd,"fetch"))
 210                 help_cmd = C_FETCH;
 211             else if (!strcmp(cmd,"graph"))
 212                 help_cmd = C_GRAPH;
 213             else if (!strcmp(cmd,"tune"))
 214                 help_cmd = C_TUNE;
 215             else if (!strcmp(cmd,"resize"))
 216                 help_cmd = C_RESIZE;
 217             else if (!strcmp(cmd,"xport"))
 218                 help_cmd = C_XPORT;
 219             else if (!strcmp(cmd,"quit"))
 220                 help_cmd = C_QUIT;
 221             else if (!strcmp(cmd,"ls"))
 222                 help_cmd = C_LS;
 223             else if (!strcmp(cmd,"cd"))
 224                 help_cmd = C_CD;
 225             else if (!strcmp(cmd,"mkdir"))
 226                 help_cmd = C_MKDIR;
 227         }
 228     fputs(help_main, stdout);
 229     switch (help_cmd)
 230         {
 231             case C_NONE:
 232                 fputs(help_list, stdout);
 233                 if (RemoteMode){
 234                    fputs(help_listremote, stdout);
 235                 }
 236                 break;
 237             case C_CREATE:
 238                 fputs(help_create, stdout);
 239                 break;
 240             case C_DUMP:
 241                 fputs(help_dump, stdout);
 242                 break;
 243             case C_INFO:
 244                 fputs(help_info, stdout);
 245                 break;
 246             case C_RESTORE:
 247                 fputs(help_restore, stdout);
 248                 break;
 249             case C_LAST:
 250                 fputs(help_last, stdout);
 251                 break;
 252             case C_FIRST:
 253                 fputs(help_first, stdout);
 254                 break;
 255             case C_UPDATE:
 256                 fputs(help_update, stdout);
 257                 break;
 258             case C_UPDATEV:
 259                 fputs(help_updatev, stdout);
 260                 break;
 261             case C_FETCH:
 262                 fputs(help_fetch, stdout);
 263                 break;
 264             case C_GRAPH:
 265                 fputs(help_graph1, stdout);
 266                 fputs(help_graph2, stdout);
 267                 fputs(help_graph3, stdout);
 268                 break;
 269             case C_TUNE:
 270                 fputs(help_tune1, stdout);
 271                 fputs(help_tune2, stdout);
 272                 break;
 273             case C_RESIZE:
 274                 fputs(help_resize, stdout);
 275                 break;
 276             case C_XPORT:
 277                 fputs(help_xport, stdout);
 278                 break;
 279             case C_QUIT:
 280                 fputs(help_quit, stdout);
 281                 break;
 282             case C_LS:
 283                 fputs(help_ls, stdout);
 284                 break;
 285             case C_CD:
 286                 fputs(help_cd, stdout);
 287                 break;
 288             case C_MKDIR:
 289                 fputs(help_mkdir, stdout);
 290                 break;
 291         }
 292     fputs(help_lic, stdout);
 293 }
 294
 295
 296 int main(int argc, char *argv[])
 297 {
 298     char **myargv;
 299     char aLine[MAX_LENGTH];
 300 #ifdef HAVE_CHROOT
 301     char *firstdir="";
 302 #endif
 303 #ifdef MUST_DISABLE_SIGFPE
 304     signal(SIGFPE,SIG_IGN);
 305 #endif
 306 #ifdef MUST_DISABLE_FPMASK
 307     fpsetmask(0);
 308 #endif
 309     if (argc == 1)
 310         {
 311             PrintUsage("");
 312             return 0;
 313         }
 314
 315     if (((argc == 2)||(argc == 3)) && !strcmp("-",argv[1]))
 316         {
 317 #if HAVE_GETRUSAGE
 318           struct rusage  myusage;
 319           struct timeval starttime;
 320           struct timeval currenttime;
 321           struct timezone tz;
 322
 323             tz.tz_minuteswest =0;
 324             tz.tz_dsttime=0;
 325             gettimeofday(&starttime,&tz);
 326 #endif
 327           RemoteMode=1;
 328 #ifdef HAVE_CHROOT
 329           if ((argc == 3) && strcmp("",argv[2])){
 330              if (getuid()==0){
 331                 chroot(argv[2]);
 332                 if (errno!=0){
 333                    fprintf(stderr,"ERROR: can't change root to '%s' errno=%d\n",
 334                            argv[2],errno);
 335                     exit(errno);
 336                 }
 337                 ChangeRoot=1;
 338                 firstdir="/";
 339              }
 340              else{
 341                 firstdir=argv[2];
 342              }
 343           }
 344           if (strcmp(firstdir,"")){
 345              chdir(firstdir);
 346              if (errno!=0){
 347                 fprintf(stderr,"ERROR: %s\n",rrd_strerror(errno));
 348                 exit(errno);
 349              }
 350           }
 351 #else
 352           fprintf(stderr,"ERROR: change root is not supported by your OS "
 353                          "or at least by this copy of rrdtool\n");
 354           exit(1);
 355 #endif
 356
 357             while (fgets(aLine, sizeof(aLine)-1, stdin)){
 358                 if ((argc = CountArgs(aLine)) == 0)  {
 359                     fprintf(stderr,"ERROR: not enough arguments\n");
 360                 }
 361                 if ((myargv = (char **) malloc((argc+1) *
 362                                                sizeof(char *))) == NULL)   {
 363                     perror("malloc");
 364                     exit(1);
 365                 }
 366                 if ((argc=CreateArgs(argv[0], aLine, argc, myargv)) < 0) {
 367                     fprintf(stderr, "ERROR: creating arguments\n");
 368                     exit(1);
 369                 }
 370
 371                 if (HandleInputLine(argc, myargv, stdout))
 372                     exit(1);
 373                 free(myargv);
 374
 375 #if HAVE_GETRUSAGE
 376                 getrusage(RUSAGE_SELF,&myusage);
 377                 gettimeofday(&currenttime,&tz);
 378                 printf("OK u:%1.2f s:%1.2f r:%1.2f\n",
 379                        (double)myusage.ru_utime.tv_sec+
 380                        (double)myusage.ru_utime.tv_usec/1000000.0,
 381                        (double)myusage.ru_stime.tv_sec+
 382                        (double)myusage.ru_stime.tv_usec/1000000.0,
 383                        (double)(currenttime.tv_sec-starttime.tv_sec)
 384                        +(double)(currenttime.tv_usec-starttime.tv_usec)
 385                        /1000000.0);
 386 #else
 387                 printf("OK\n");
 388 #endif
 389                 fflush(stdout); /* this is important for pipes to work */
 390             }
 391         }
 392     else if (argc == 2)
 393         {
 394                 PrintUsage(argv[1]);
 395                 exit(0);
 396         }
 397     else if (argc == 3 && !strcmp(argv[1],"help"))
 398         {
 399                 PrintUsage(argv[2]);
 400                 exit(0);
 401         }
 402     else {
 403         exit(HandleInputLine(argc, argv, stderr));
 404     }
 405     return 0;
 406 }
 407
 408 /* HandleInputLine is NOT thread safe - due to readdir issues,
 409    resolving them portably is not really simple. */
 410 int HandleInputLine(int argc, char **argv, FILE* out)
 411 {
 412 #if defined(HAVE_OPENDIR) && defined (HAVE_READDIR)
 413     DIR           *curdir; /* to read current dir with ls */
 414     struct dirent *dent;
 415 #endif
 416 #if defined(HAVE_SYS_STAT_H)
 417     struct stat   st;
 418 #endif
 419     optind=0; /* reset gnu getopt */
 420     opterr=0; /* no error messages */
 421
 422     if (RemoteMode){
 423        if (argc>1 && strcmp("quit", argv[1]) == 0){
 424           if (argc>2){
 425              printf("ERROR: invalid parameter count for quit\n");
 426              return(0);
 427           }
 428           exit(0);
 429        }
 430 #if defined(HAVE_OPENDIR) && defined(HAVE_READDIR) && defined(HAVE_CHDIR)
 431        if (argc>1 && strcmp("cd", argv[1]) == 0){
 432           if (argc>3){
 433              printf("ERROR: invalid parameter count for cd\n");
 434              return(0);
 435           }
 436 #if ! defined(HAVE_CHROOT) || ! defined(HAVE_GETUID)
 437           if (getuid()==0 && ! ChangeRoot){
 438              printf("ERROR: chdir security problem - rrdtool is running as "
 439                     "root an no chroot!\n");
 440              return(0);
 441           }
 442 #endif
 443           chdir(argv[2]);
 444           if (errno!=0){
 445              printf("ERROR: %s\n",rrd_strerror(errno));
 446           }
 447           return(0);
 448        }
 449        if (argc>1 && strcmp("mkdir", argv[1]) == 0){
 450           if (argc>3){
 451              printf("ERROR: invalid parameter count for mkdir\n");
 452              return(0);
 453           }
 454 #if ! defined(HAVE_CHROOT) || ! defined(HAVE_GETUID)
 455           if (getuid()==0 && ! ChangeRoot){
 456              printf("ERROR: mkdir security problem - rrdtool is running as "
 457                     "root an no chroot!\n");
 458              return(0);
 459           }
 460 #endif
 461           mkdir(argv[2],0777);
 462           if (errno!=0){
 463              printf("ERROR: %s\n",rrd_strerror(errno));
 464           }
 465           return(0);
 466        }
 467        if (argc>1 && strcmp("ls", argv[1]) == 0){
 468           if (argc>2){
 469              printf("ERROR: invalid parameter count for ls\n");
 470              return(0);
 471           }
 472           if ((curdir=opendir("."))!=NULL){
 473              while((dent=readdir(curdir))!=NULL){
 474                 if (!stat(dent->d_name,&st)){
 475                    if (S_ISDIR(st.st_mode)){
 476                       printf("d %s\n",dent->d_name);
 477                    }
 478                    if (strlen(dent->d_name)>4 && S_ISREG(st.st_mode)){
 479                       if (!strcmp(dent->d_name+NAMLEN(dent)-4,".rrd") ||
 480                           !strcmp(dent->d_name+NAMLEN(dent)-4,".RRD")){
 481                          printf("- %s\n",dent->d_name);
 482                       }
 483                    }
 484                 }
 485              }
 486           }
 487           else{
 488              printf("ERROR: %s\n",rrd_strerror(errno));
 489              return(errno);
 490           }
 491           return(0);
 492        }
 493 #endif /* opendir and readdir */
 494
 495     }
 496     if (argc < 3
 497         || strcmp("help", argv[1]) == 0
 498         || strcmp("--help", argv[1]) == 0
 499         || strcmp("-help", argv[1]) == 0
 500         || strcmp("-?", argv[1]) == 0
 501         || strcmp("-h", argv[1]) == 0 ) {
 502         PrintUsage("");
 503         return 0;
 504     }
 505
 506     if (strcmp("create", argv[1]) == 0)
 507         rrd_create(argc-1, &argv[1]);
 508     else if (strcmp("dump", argv[1]) == 0)
 509         rrd_dump(argc-1, &argv[1]);
 510     else if (strcmp("info", argv[1]) == 0
 511                 || strcmp("updatev", argv[1]) == 0){
 512         info_t *data,*save;
 513         if (strcmp("info",argv[1]) == 0)
 514            data=rrd_info(argc-1, &argv[1]);
 515     else
 516            data=rrd_update_v(argc-1, &argv[1]);
 517         while (data) {
 518             save=data;
 519             printf ("%s = ", data->key);
 520             free(data->key);
 521
 522             switch (data->type) {
 523             case RD_I_VAL:
 524                 if (isnan (data->value.u_val))
 525                     printf("NaN");
 526                 else
 527                     printf ("%0.10e", data->value.u_val);
 528                 break;
 529             case RD_I_CNT:
 530                 printf ("%lu", data->value.u_cnt);
 531                 break;
 532             case RD_I_INT:
 533                 printf ("%d", data->value.u_int);
 534                 break;
 535             case RD_I_STR:
 536                 printf ("\"%s\"", data->value.u_str);
 537                 free(data->value.u_str);
 538                 break;
 539             }
 540             data = data->next;
 541             free(save);
 542             printf ("\n");
 543         }
 544         free(data);
 545     }
 546
 547     else if (strcmp("--version", argv[1]) == 0 ||
 548              strcmp("version", argv[1]) == 0 ||
 549              strcmp("v", argv[1]) == 0 ||
 550              strcmp("-v", argv[1]) == 0  ||
 551              strcmp("-version", argv[1]) == 0  )
 552         printf("RRDtool 1.2rc8  Copyright by Tobi Oetiker, 1997-2005\n");
 553     else if (strcmp("restore", argv[1]) == 0)
 554         rrd_restore(argc-1, &argv[1]);
 555     else if (strcmp("resize", argv[1]) == 0)
 556         rrd_resize(argc-1, &argv[1]);
 557     else if (strcmp("last", argv[1]) == 0)
 558         printf("%ld\n",rrd_last(argc-1, &argv[1]));
 559     else if (strcmp("first", argv[1]) == 0)
 560         printf("%ld\n",rrd_first(argc-1, &argv[1]));
 561     else if (strcmp("update", argv[1]) == 0)
 562         rrd_update(argc-1, &argv[1]);
 563     else if (strcmp("fetch", argv[1]) == 0) {
 564         time_t        start,end, ti;
 565         unsigned long step, ds_cnt,i,ii;
 566         rrd_value_t   *data,*datai;
 567         char          **ds_namv;
 568         if (rrd_fetch(argc-1, &argv[1],&start,&end,&step,&ds_cnt,&ds_namv,&data) != -1) {
 569             datai=data;
 570             printf("           ");
 571             for (i = 0; i<ds_cnt;i++)
 572                 printf("%20s",ds_namv[i]);
 573             printf ("\n\n");
 574             for (ti = start+step; ti <= end; ti += step){
 575                 printf("%10lu:", ti);
 576                 for (ii = 0; ii < ds_cnt; ii++)
 577                     printf(" %0.10e", *(datai++));
 578                 printf("\n");
 579             }
 580             for (i=0;i<ds_cnt;i++)
 581                   free(ds_namv[i]);
 582             free(ds_namv);
 583             free (data);
 584         }
 585     } else if (strcmp("xport", argv[1]) == 0) {
 586         int xxsize;
 587         unsigned long int j = 0;
 588         time_t        start,end, ti;
 589         unsigned long step, col_cnt,row_cnt;
 590         rrd_value_t   *data,*ptr;
 591         char          **legend_v;
 592         if(rrd_xport(argc-1, &argv[1], &xxsize,&start,&end,&step,&col_cnt,&legend_v,&data) != -1) {
 593           row_cnt = (end-start)/step;
 594           ptr = data;
 595           printf("<?xml version=\"1.0\" encoding=\"%s\"?>\n\n", XML_ENCODING);
 596           printf("<%s>\n", ROOT_TAG);
 597           printf("  <%s>\n", META_TAG);
 598           printf("    <%s>%lu</%s>\n", META_START_TAG, start+step, META_START_TAG);
 599           printf("    <%s>%lu</%s>\n", META_STEP_TAG, step, META_STEP_TAG);
 600           printf("    <%s>%lu</%s>\n", META_END_TAG, end, META_END_TAG);
 601           printf("    <%s>%lu</%s>\n", META_ROWS_TAG, row_cnt, META_ROWS_TAG);
 602           printf("    <%s>%lu</%s>\n", META_COLS_TAG, col_cnt, META_COLS_TAG);
 603           printf("    <%s>\n", LEGEND_TAG);
 604           for (j = 0; j < col_cnt; j++) {
 605             char *entry = NULL;
 606             entry = legend_v[j];
 607             printf("      <%s>%s</%s>\n", LEGEND_ENTRY_TAG, entry, LEGEND_ENTRY_TAG);
 608             free(entry);
 609           }
 610           free(legend_v);
 611           printf("    </%s>\n", LEGEND_TAG);
 612           printf("  </%s>\n", META_TAG);
 613           printf("  <%s>\n", DATA_TAG);
 614           for (ti = start+step; ti <= end; ti += step) {
 615             printf ("    <%s>", DATA_ROW_TAG);
 616             printf ("<%s>%lu</%s>", COL_TIME_TAG, ti, COL_TIME_TAG);
 617             for (j = 0; j < col_cnt; j++) {
 618               rrd_value_t newval = DNAN;
 619               newval = *ptr;
 620               if(isnan(newval)){
 621                 printf("<%s>NaN</%s>", COL_DATA_TAG, COL_DATA_TAG);
 622               } else {
 623                 printf("<%s>%0.10e</%s>", COL_DATA_TAG, newval, COL_DATA_TAG);
 624               };
 625               ptr++;
 626             }
 627             printf("</%s>\n", DATA_ROW_TAG);
 628           }
 629           free(data);
 630           printf("  </%s>\n", DATA_TAG);
 631           printf("</%s>\n", ROOT_TAG);
 632         }
 633     }
 634     else if (strcmp("graph", argv[1]) == 0) {
 635         char **calcpr;
 636 #ifdef notused  /*XXX*/
 637         const char *imgfile = argv[2]; /* rrd_graph changes argv pointer */
 638 #endif
 639         int xsize, ysize;
 640         double ymin,ymax;
 641         int i;
 642         int tostdout = (strcmp(argv[2],"-") == 0);
 643         if( rrd_graph(argc-1, &argv[1], &calcpr, &xsize, &ysize, NULL, &ymin, &ymax) != -1 ) {
 644             if (!tostdout)
 645                 printf ("%dx%d\n",xsize,ysize);
 646             if (calcpr) {
 647                 for(i=0;calcpr[i];i++){
 648                     if (!tostdout)
 649                         printf("%s\n",calcpr[i]);
 650                     free(calcpr[i]);
 651                 }
 652                 free(calcpr);
 653             }
 654         }
 655
 656     } else if (strcmp("tune", argv[1]) == 0)
 657                 rrd_tune(argc-1, &argv[1]);
 658     else {
 659                 rrd_set_error("unknown function '%s'",argv[1]);
 660     }
 661     if (rrd_test_error()) {
 662         fprintf(out, "ERROR: %s\n",rrd_get_error());
 663         rrd_clear_error();
 664         return 1;
 665     }
 666     return(0);
 667 }
 668
 669 int CountArgs(char *aLine)
 670 {
 671     int i=0;
 672     int aCount = 0;
 673     int inarg = 0;
 674     while (aLine[i] == ' ') i++;
 675     while (aLine[i] != 0){
 676         if((aLine[i]== ' ') && inarg){
 677             inarg = 0;
 678         }
 679         if((aLine[i]!= ' ') && ! inarg){
 680             inarg = 1;
 681             aCount++;
 682         }
 683         i++;
 684     }
 685     return aCount;
 686 }
 687
 688 /*
 689  * CreateArgs - take a string (aLine) and tokenize
 690  */
 691 int CreateArgs(char *pName, char *aLine, int argc, char **argv)
 692 {
 693     char        *getP, *putP;
 694     char        **pargv = argv;
 695     char        Quote = 0;
 696     int inArg = 0;
 697     int len;
 698
 699     len = strlen(aLine);
 700     /* remove trailing space and newlines */
 701     while (len && aLine[len] <= ' ') {
 702         aLine[len] = 0 ; len--;
 703     }
 704     /* sikp leading blanks */
 705     while (*aLine && *aLine <= ' ') aLine++;
 706
 707     pargv[0] = pName;
 708     argc = 1;
 709     getP = aLine;
 710     putP = aLine;
 711     while (*getP){
 712         switch (*getP) {
 713         case ' ':
 714             if (Quote){
 715                 *(putP++)=*getP;
 716             } else
 717                 if(inArg) {
 718                     *(putP++) = 0;
 719                     inArg = 0;
 720                 }
 721             break;
 722         case '"':
 723         case '\'':
 724             if (Quote != 0) {
 725                 if (Quote == *getP)
 726                     Quote = 0;
 727                 else {
 728                     *(putP++)=*getP;
 729                 }
 730             } else {
 731                 if(!inArg){
 732                     pargv[argc++] = putP;
 733                     inArg=1;
 734                 }
 735                 Quote = *getP;
 736             }
 737             break;
 738         default:
 739             if(!inArg){
 740                 pargv[argc++] = putP;
 741                 inArg=1;
 742             }
 743             *(putP++)=*getP;
 744             break;
 745         }
 746         getP++;
 747     }
 748
 749     *putP = '\0';
 750
 751     if (Quote)
 752         return -1;
 753     else
 754         return argc;
 755 }
 756
 757