src/rrd_tool.c

   1 /*****************************************************************************
   2  * RRDtool 1.2.11  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 " PACKAGE_VERSION "  Copyright 1997-2005 by Tobias Oetiker <tobi@oetiker.ch>\n"
  26            "               Compiled " __DATE__ " " __TIME__ "\n\n"
  27            "Usage: rrdtool [options] command command_options\n\n";
  28
  29     char help_list[] =
  30            "Valid commands: create, update, updatev, graph, dump, restore,\n"
  31            "\t\tlast, first, info, fetch, tune, resize, xport\n\n";
  32
  33     char help_listremote[] =
  34            "Valid remote commands: quit, ls, cd, mkdir\n\n";
  35
  36
  37     char help_create[] =
  38            "* create - create a new RRD\n\n"
  39            "\trrdtool create filename [--start|-b start time]\n"
  40            "\t\t[--step|-s step]\n"
  41            "\t\t[DS:ds-name:DST:dst arguments]\n"
  42            "\t\t[RRA:CF:cf arguments]\n\n";
  43
  44     char help_dump[] =
  45            "* dump - dump an RRD to XML\n\n"
  46            "\trrdtool dump filename.rrd >filename.xml\n\n";
  47
  48     char help_info[] =
  49            "* info - returns the configuration and status of the RRD\n\n"
  50            "\trrdtool info filename.rrd\n\n";
  51
  52     char help_restore[] =
  53            "* restore - restore an RRD file from its XML form\n\n"
  54            "\trrdtool restore [--range-check|-r] [--force-overwrite|-f] filename.xml filename.rrd\n\n";
  55
  56     char help_last[] =
  57            "* last - show last update time for RRD\n\n"
  58            "\trrdtool last filename.rrd\n\n";
  59
  60     char help_first[] =
  61            "* first - show first update time for RRA within an RRD\n\n"
  62            "\trrdtool first filename.rrd [--rraindex number]\n\n";
  63
  64     char help_update[] =
  65            "* update - update an RRD\n\n"
  66            "\trrdtool update filename\n"
  67            "\t\t--template|-t ds-name:ds-name:...\n"
  68            "\t\ttime|N:value[:value...]\n\n"
  69            "\t\tat-time@value[:value...]\n\n"
  70            "\t\t[ time:value[:value...] ..]\n\n";
  71
  72         char help_updatev[] =
  73            "* updatev - a verbose version of update\n"
  74            "\treturns information about values, RRAs, and datasources updated\n\n"
  75            "\trrdtool updatev filename\n"
  76            "\t\t--template|-t ds-name:ds-name:...\n"
  77            "\t\ttime|N:value[:value...]\n\n"
  78            "\t\tat-time@value[:value...]\n\n"
  79            "\t\t[ time:value[:value...] ..]\n\n";
  80
  81     char help_fetch[] =
  82            "* fetch - fetch data out of an RRD\n\n"
  83            "\trrdtool fetch filename.rrd CF\n"
  84            "\t\t[-r|--resolution resolution]\n"
  85            "\t\t[-s|--start start] [-e|--end end]\n\n";
  86
  87 /* break up very large strings (help_graph, help_tune) for ISO C89 compliance*/
  88
  89     char help_graph1[] =
  90            "* graph - generate a graph from one or several RRD\n\n"
  91            "\trrdtool graph filename [-s|--start seconds] [-e|--end seconds]\n"
  92            "\t\t[-x|--x-grid x-axis grid and label]\n"
  93            "\t\t[-Y|--alt-y-grid]\n"
  94            "\t\t[-y|--y-grid y-axis grid and label]\n"
  95            "\t\t[-v|--vertical-label string] [-w|--width pixels]\n"
  96            "\t\t[-h|--height pixels] [-o|--logarithmic]\n"
  97            "\t\t[-u|--upper-limit value] [-z|--lazy]\n"
  98            "\t\t[-l|--lower-limit value] [-r|--rigid]\n"
  99            "\t\t[-g|--no-legend]\n"
 100            "\t\t[-F|--force-rules-legend]\n"
 101            "\t\t[-j|--only-graph]\n";
 102     char help_graph2[] =
 103            "\t\t[-n|--font FONTTAG:size:font]\n"
 104            "\t\t[-m|--zoom factor]\n"
 105            "\t\t[-A|--alt-autoscale]\n"
 106            "\t\t[-M|--alt-autoscale-max]\n"
 107            "\t\t[-R|--font-render-mode {normal,light,mono}]\n"
 108            "\t\t[-B|--font-smoothing-threshold size]\n"
 109            "\t\t[-E|--slope-mode]\n"
 110            "\t\t[-N|--no-gridfit]\n"
 111            "\t\t[-X|--units-exponent value]\n"
 112            "\t\t[-L|--units-length value]\n"
 113            "\t\t[-S|--step seconds]\n"
 114            "\t\t[-f|--imginfo printfstr]\n"
 115            "\t\t[-a|--imgformat PNG]\n"
 116            "\t\t[-c|--color COLORTAG#rrggbb[aa]] [-t|--title string]\n"
 117            "\t\t[DEF:vname=rrd:ds-name:CF]\n"
 118            "\t\t[CDEF:vname=rpn-expression]\n";
 119     char help_graph3[] =
 120            "\t\t[VDEF:vdefname=rpn-expression]\n"
 121            "\t\t[PRINT:vdefname:format]\n"
 122            "\t\t[GPRINT:vdefname:format]\n"
 123            "\t\t[COMMENT:text]\n"
 124            "\t\t[SHIFT:vname:offset]\n"
 125            "\t\t[TICK:vname#rrggbb[aa][:[fraction][:legend]]]\n"
 126            "\t\t[HRULE:value#rrggbb[aa][:legend]]\n"
 127            "\t\t[VRULE:value#rrggbb[aa][:legend]]\n"
 128            "\t\t[LINE[width]:vname[#rrggbb[aa][:[legend][:STACK]]]]\n"
 129            "\t\t[AREA:vname[#rrggbb[aa][:[legend][:STACK]]]]\n"
 130            "\t\t[PRINT:vname:CF:format] (deprecated)\n"
 131            "\t\t[GPRINT:vname:CF:format] (deprecated)\n"
 132            "\t\t[STACK:vname[#rrggbb[aa][:legend]]] (deprecated)\n\n";
 133
 134     char help_tune1[] =
 135            " * tune -  Modify some basic properties of an RRD\n\n"
 136            "\trrdtool tune filename\n"
 137            "\t\t[--heartbeat|-h ds-name:heartbeat]\n"
 138            "\t\t[--data-source-type|-d ds-name:DST]\n"
 139            "\t\t[--data-source-rename|-r old-name:new-name]\n"
 140            "\t\t[--minimum|-i ds-name:min] [--maximum|-a ds-name:max]\n"
 141            "\t\t[--deltapos scale-value] [--deltaneg scale-value]\n"
 142            "\t\t[--failure-threshold integer]\n"
 143            "\t\t[--window-length integer]\n"
 144            "\t\t[--alpha adaptation-parameter]\n";
 145     char help_tune2[] =
 146            " * tune -  Modify some basic properties of an RRD\n\n"
 147            "\t\t[--beta adaptation-parameter]\n"
 148            "\t\t[--gamma adaptation-parameter]\n"
 149            "\t\t[--gamma-deviation adaptation-parameter]\n"
 150            "\t\t[--aberrant-reset ds-name]\n\n";
 151
 152     char help_resize[] =
 153            " * resize - alter the length of one of the RRAs in an RRD\n\n"
 154            "\trrdtool resize filename rranum GROW|SHRINK rows\n\n";
 155
 156     char help_xport[] =
 157            "* xport - generate XML dump from one or several RRD\n\n"
 158            "\trrdtool xport [-s|--start seconds] [-e|--end seconds]\n"
 159            "\t\t[-m|--maxrows rows]\n"
 160            "\t\t[--step seconds]\n"
 161            "\t\t[DEF:vname=rrd:ds-name:CF]\n"
 162            "\t\t[CDEF:vname=rpn-expression]\n"
 163            "\t\t[XPORT:vname:legend]\n\n";
 164
 165     char help_quit[] =
 166            " * quit - closing a session in remote mode\n\n"
 167            "\trrdtool quit\n\n";
 168
 169     char help_ls[] =
 170            " * ls - lists all *.rrd files in current directory\n\n"
 171            "\trrdtool ls\n\n";
 172
 173     char help_cd[] =
 174            " * cd - changes the current directory\n\n"
 175            "\trrdtool cd new directory\n\n";
 176
 177     char help_mkdir[] =
 178            " * mkdir - creates a new directory\n\n"
 179            "\trrdtool mkdir newdirectoryname\n\n";
 180
 181     char help_lic[] =
 182            "RRDtool is distributed under the Terms of the GNU General\n"
 183            "Public License Version 2. (www.gnu.org/copyleft/gpl.html)\n\n"
 184
 185            "For more information read the RRD manpages\n\n";
 186
 187     enum { C_NONE, C_CREATE, C_DUMP, C_INFO, C_RESTORE, C_LAST, C_FIRST,
 188            C_UPDATE, C_FETCH, C_GRAPH, C_TUNE, C_RESIZE, C_XPORT,
 189            C_QUIT, C_LS, C_CD, C_MKDIR, C_UPDATEV };
 190
 191     int help_cmd = C_NONE;
 192
 193     if (cmd)
 194         {
 195             if (!strcmp(cmd,"create"))
 196                 help_cmd = C_CREATE;
 197             else if (!strcmp(cmd,"dump"))
 198                 help_cmd = C_DUMP;
 199             else if (!strcmp(cmd,"info"))
 200                 help_cmd = C_INFO;
 201             else if (!strcmp(cmd,"restore"))
 202                 help_cmd = C_RESTORE;
 203             else if (!strcmp(cmd,"last"))
 204                 help_cmd = C_LAST;
 205             else if (!strcmp(cmd,"first"))
 206                 help_cmd = C_FIRST;
 207             else if (!strcmp(cmd,"update"))
 208                 help_cmd = C_UPDATE;
 209             else if (!strcmp(cmd,"updatev"))
 210                 help_cmd = C_UPDATEV;
 211             else if (!strcmp(cmd,"fetch"))
 212                 help_cmd = C_FETCH;
 213             else if (!strcmp(cmd,"graph"))
 214                 help_cmd = C_GRAPH;
 215             else if (!strcmp(cmd,"tune"))
 216                 help_cmd = C_TUNE;
 217             else if (!strcmp(cmd,"resize"))
 218                 help_cmd = C_RESIZE;
 219             else if (!strcmp(cmd,"xport"))
 220                 help_cmd = C_XPORT;
 221             else if (!strcmp(cmd,"quit"))
 222                 help_cmd = C_QUIT;
 223             else if (!strcmp(cmd,"ls"))
 224                 help_cmd = C_LS;
 225             else if (!strcmp(cmd,"cd"))
 226                 help_cmd = C_CD;
 227             else if (!strcmp(cmd,"mkdir"))
 228                 help_cmd = C_MKDIR;
 229         }
 230     fputs(help_main, stdout);
 231     switch (help_cmd)
 232         {
 233             case C_NONE:
 234                 fputs(help_list, stdout);
 235                 if (RemoteMode){
 236                    fputs(help_listremote, stdout);
 237                 }
 238                 break;
 239             case C_CREATE:
 240                 fputs(help_create, stdout);
 241                 break;
 242             case C_DUMP:
 243                 fputs(help_dump, stdout);
 244                 break;
 245             case C_INFO:
 246                 fputs(help_info, stdout);
 247                 break;
 248             case C_RESTORE:
 249                 fputs(help_restore, stdout);
 250                 break;
 251             case C_LAST:
 252                 fputs(help_last, stdout);
 253                 break;
 254             case C_FIRST:
 255                 fputs(help_first, stdout);
 256                 break;
 257             case C_UPDATE:
 258                 fputs(help_update, stdout);
 259                 break;
 260             case C_UPDATEV:
 261                 fputs(help_updatev, stdout);
 262                 break;
 263             case C_FETCH:
 264                 fputs(help_fetch, stdout);
 265                 break;
 266             case C_GRAPH:
 267                 fputs(help_graph1, stdout);
 268                 fputs(help_graph2, stdout);
 269                 fputs(help_graph3, stdout);
 270                 break;
 271             case C_TUNE:
 272                 fputs(help_tune1, stdout);
 273                 fputs(help_tune2, stdout);
 274                 break;
 275             case C_RESIZE:
 276                 fputs(help_resize, stdout);
 277                 break;
 278             case C_XPORT:
 279                 fputs(help_xport, stdout);
 280                 break;
 281             case C_QUIT:
 282                 fputs(help_quit, stdout);
 283                 break;
 284             case C_LS:
 285                 fputs(help_ls, stdout);
 286                 break;
 287             case C_CD:
 288                 fputs(help_cd, stdout);
 289                 break;
 290             case C_MKDIR:
 291                 fputs(help_mkdir, stdout);
 292                 break;
 293         }
 294     fputs(help_lic, stdout);
 295 }
 296
 297
 298 int main(int argc, char *argv[])
 299 {
 300     char **myargv;
 301     char aLine[MAX_LENGTH];
 302     char *firstdir="";
 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           if ((argc == 3) && strcmp("",argv[2])){
 329              if (getuid()==0){
 330 #ifdef HAVE_CHROOT
 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 #else
 340                 fprintf(stderr,"ERROR: change root is not supported by your OS "
 341                          "or at least by this copy of rrdtool\n");
 342                 exit(1);
 343 #endif
 344              } else {
 345                 firstdir=argv[2];
 346              }
 347           }
 348           if (strcmp(firstdir,"")){
 349              chdir(firstdir);
 350              if (errno!=0){
 351                 fprintf(stderr,"ERROR: %s\n",rrd_strerror(errno));
 352                 exit(errno);
 353              }
 354           }
 355
 356             while (fgets(aLine, sizeof(aLine)-1, stdin)){
 357                 if ((argc = CountArgs(aLine)) == 0)  {
 358                     fprintf(stderr,"ERROR: not enough arguments\n");
 359                 }
 360                 if ((myargv = (char **) malloc((argc+1) *
 361                                                sizeof(char *))) == NULL)   {
 362                     perror("malloc");
 363                     exit(1);
 364                 }
 365                 if ((argc=CreateArgs(argv[0], aLine, argc, myargv)) < 0) {
 366                     printf("ERROR: creating arguments\n");
 367                 } else {
 368                     int ret = HandleInputLine(argc, myargv, stdout);
 369                     free(myargv);
 370                     if (ret == 0){
 371
 372
 373 #if HAVE_GETRUSAGE
 374                      getrusage(RUSAGE_SELF,&myusage);
 375                      gettimeofday(&currenttime,&tz);
 376                      printf("OK u:%1.2f s:%1.2f r:%1.2f\n",
 377                        (double)myusage.ru_utime.tv_sec+
 378                        (double)myusage.ru_utime.tv_usec/1000000.0,
 379                        (double)myusage.ru_stime.tv_sec+
 380                        (double)myusage.ru_stime.tv_usec/1000000.0,
 381                        (double)(currenttime.tv_sec-starttime.tv_sec)
 382                        +(double)(currenttime.tv_usec-starttime.tv_usec)
 383                        /1000000.0);
 384 #else
 385                       printf("OK\n");
 386
 387 #endif
 388                   }
 389                 }
 390                 fflush(stdout); /* this is important for pipes to work */
 391             }
 392         }
 393     else if (argc == 2)
 394         {
 395                 PrintUsage(argv[1]);
 396                 exit(0);
 397         }
 398     else if (argc == 3 && !strcmp(argv[1],"help"))
 399         {
 400                 PrintUsage(argv[2]);
 401                 exit(0);
 402         }
 403     else {
 404         exit(HandleInputLine(argc, argv, stderr));
 405     }
 406     return 0;
 407 }
 408
 409 /* HandleInputLine is NOT thread safe - due to readdir issues,
 410    resolving them portably is not really simple. */
 411 int HandleInputLine(int argc, char **argv, FILE* out)
 412 {
 413 #if defined(HAVE_OPENDIR) && defined (HAVE_READDIR)
 414     DIR           *curdir; /* to read current dir with ls */
 415     struct dirent *dent;
 416 #endif
 417 #if defined(HAVE_SYS_STAT_H)
 418     struct stat   st;
 419 #endif
 420
 421     if (RemoteMode){
 422        if (argc>1 && strcmp("quit", argv[1]) == 0){
 423           if (argc>2){
 424              printf("ERROR: invalid parameter count for quit\n");
 425              return(1);
 426           }
 427           exit(0);
 428        }
 429 #if defined(HAVE_OPENDIR) && defined(HAVE_READDIR) && defined(HAVE_CHDIR)
 430        if (argc>1 && strcmp("cd", argv[1]) == 0){
 431           if (argc>3){
 432              printf("ERROR: invalid parameter count for cd\n");
 433              return(1);
 434           }
 435 #if ! defined(HAVE_CHROOT) || ! defined(HAVE_GETUID)
 436           if (getuid()==0 && ! ChangeRoot){
 437              printf("ERROR: chdir security problem - rrdtool is running as "
 438                     "root an no chroot!\n");
 439              return(1);
 440           }
 441 #endif
 442           chdir(argv[2]);
 443           if (errno!=0){
 444              printf("ERROR: %s\n",rrd_strerror(errno));
 445              return(1);
 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(1);
 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(1);
 459           }
 460 #endif
 461           mkdir(argv[2],0777);
 462           if (errno!=0){
 463              printf("ERROR: %s\n",rrd_strerror(errno));
 464              return(1);
 465           }
 466           return(0);
 467        }
 468        if (argc>1 && strcmp("ls", argv[1]) == 0){
 469           if (argc>2){
 470              printf("ERROR: invalid parameter count for ls\n");
 471              return(1);
 472           }
 473           if ((curdir=opendir("."))!=NULL){
 474              while((dent=readdir(curdir))!=NULL){
 475                 if (!stat(dent->d_name,&st)){
 476                    if (S_ISDIR(st.st_mode)){
 477                       printf("d %s\n",dent->d_name);
 478                    }
 479                    if (strlen(dent->d_name)>4 && S_ISREG(st.st_mode)){
 480                       if (!strcmp(dent->d_name+NAMLEN(dent)-4,".rrd") ||
 481                           !strcmp(dent->d_name+NAMLEN(dent)-4,".RRD")){
 482                          printf("- %s\n",dent->d_name);
 483                       }
 484                    }
 485                 }
 486              }
 487           }
 488           else{
 489              printf("ERROR: %s\n",rrd_strerror(errno));
 490              return(errno);
 491           }
 492           return(0);
 493        }
 494 #endif /* opendir and readdir */
 495
 496     }
 497     if (argc < 3
 498         || strcmp("help", argv[1]) == 0
 499         || strcmp("--help", argv[1]) == 0
 500         || strcmp("-help", argv[1]) == 0
 501         || strcmp("-?", argv[1]) == 0
 502         || strcmp("-h", argv[1]) == 0 ) {
 503         PrintUsage("");
 504         return 0;
 505     }
 506
 507     if (strcmp("create", argv[1]) == 0)
 508         rrd_create(argc-1, &argv[1]);
 509     else if (strcmp("dump", argv[1]) == 0)
 510         rrd_dump(argc-1, &argv[1]);
 511     else if (strcmp("info", argv[1]) == 0
 512                 || strcmp("updatev", argv[1]) == 0){
 513         info_t *data,*save;
 514         if (strcmp("info",argv[1]) == 0)
 515            data=rrd_info(argc-1, &argv[1]);
 516     else
 517            data=rrd_update_v(argc-1, &argv[1]);
 518         while (data) {
 519             save=data;
 520             printf ("%s = ", data->key);
 521             free(data->key);
 522
 523             switch (data->type) {
 524             case RD_I_VAL:
 525                 if (isnan (data->value.u_val))
 526                     printf("NaN");
 527                 else
 528                     printf ("%0.10e", data->value.u_val);
 529                 break;
 530             case RD_I_CNT:
 531                 printf ("%lu", data->value.u_cnt);
 532                 break;
 533             case RD_I_INT:
 534                 printf ("%d", data->value.u_int);
 535                 break;
 536             case RD_I_STR:
 537                 printf ("\"%s\"", data->value.u_str);
 538                 free(data->value.u_str);
 539                 break;
 540             }
 541             data = data->next;
 542             free(save);
 543             printf ("\n");
 544         }
 545         free(data);
 546     }
 547
 548     else if (strcmp("--version", argv[1]) == 0 ||
 549              strcmp("version", argv[1]) == 0 ||
 550              strcmp("v", argv[1]) == 0 ||
 551              strcmp("-v", argv[1]) == 0  ||
 552              strcmp("-version", argv[1]) == 0  )
 553         printf("RRDtool " PACKAGE_VERSION "  Copyright by Tobi Oetiker, 1997-2005 (%f)\n",
 554                rrd_version());
 555     else if (strcmp("restore", argv[1]) == 0)
 556         rrd_restore(argc-1, &argv[1]);
 557     else if (strcmp("resize", argv[1]) == 0)
 558         rrd_resize(argc-1, &argv[1]);
 559     else if (strcmp("last", argv[1]) == 0)
 560         printf("%ld\n",rrd_last(argc-1, &argv[1]));
 561     else if (strcmp("first", argv[1]) == 0)
 562         printf("%ld\n",rrd_first(argc-1, &argv[1]));
 563     else if (strcmp("update", argv[1]) == 0)
 564         rrd_update(argc-1, &argv[1]);
 565     else if (strcmp("fetch", argv[1]) == 0) {
 566         time_t        start,end, ti;
 567         unsigned long step, ds_cnt,i,ii;
 568         rrd_value_t   *data,*datai;
 569         char          **ds_namv;
 570         if (rrd_fetch(argc-1, &argv[1],&start,&end,&step,&ds_cnt,&ds_namv,&data) != -1) {
 571             datai=data;
 572             printf("           ");
 573             for (i = 0; i<ds_cnt;i++)
 574                 printf("%20s",ds_namv[i]);
 575             printf ("\n\n");
 576             for (ti = start+step; ti <= end; ti += step){
 577                 printf("%10lu:", ti);
 578                 for (ii = 0; ii < ds_cnt; ii++)
 579                     printf(" %0.10e", *(datai++));
 580                 printf("\n");
 581             }
 582             for (i=0;i<ds_cnt;i++)
 583                   free(ds_namv[i]);
 584             free(ds_namv);
 585             free (data);
 586         }
 587     } else if (strcmp("xport", argv[1]) == 0) {
 588        int xxsize;
 589         unsigned long int j = 0;
 590         time_t        start,end, ti;
 591         unsigned long step, col_cnt,row_cnt;
 592         rrd_value_t   *data,*ptr;
 593         char          **legend_v;
 594        if(rrd_xport(argc-1, &argv[1], &xxsize,&start,&end,&step,&col_cnt,&legend_v,&data) != -1) {
 595           row_cnt = (end-start)/step;
 596           ptr = data;
 597           printf("<?xml version=\"1.0\" encoding=\"%s\"?>\n\n", XML_ENCODING);
 598           printf("<%s>\n", ROOT_TAG);
 599           printf("  <%s>\n", META_TAG);
 600           printf("    <%s>%lu</%s>\n", META_START_TAG, start+step, META_START_TAG);
 601           printf("    <%s>%lu</%s>\n", META_STEP_TAG, step, META_STEP_TAG);
 602           printf("    <%s>%lu</%s>\n", META_END_TAG, end, META_END_TAG);
 603           printf("    <%s>%lu</%s>\n", META_ROWS_TAG, row_cnt, META_ROWS_TAG);
 604           printf("    <%s>%lu</%s>\n", META_COLS_TAG, col_cnt, META_COLS_TAG);
 605           printf("    <%s>\n", LEGEND_TAG);
 606           for (j = 0; j < col_cnt; j++) {
 607             char *entry = NULL;
 608             entry = legend_v[j];
 609             printf("      <%s>%s</%s>\n", LEGEND_ENTRY_TAG, entry, LEGEND_ENTRY_TAG);
 610             free(entry);
 611           }
 612           free(legend_v);
 613           printf("    </%s>\n", LEGEND_TAG);
 614           printf("  </%s>\n", META_TAG);
 615           printf("  <%s>\n", DATA_TAG);
 616           for (ti = start+step; ti <= end; ti += step) {
 617             printf ("    <%s>", DATA_ROW_TAG);
 618             printf ("<%s>%lu</%s>", COL_TIME_TAG, ti, COL_TIME_TAG);
 619             for (j = 0; j < col_cnt; j++) {
 620               rrd_value_t newval = DNAN;
 621               newval = *ptr;
 622               if(isnan(newval)){
 623                 printf("<%s>NaN</%s>", COL_DATA_TAG, COL_DATA_TAG);
 624               } else {
 625                 printf("<%s>%0.10e</%s>", COL_DATA_TAG, newval, COL_DATA_TAG);
 626               };
 627               ptr++;
 628             }
 629             printf("</%s>\n", DATA_ROW_TAG);
 630           }
 631           free(data);
 632           printf("  </%s>\n", DATA_TAG);
 633           printf("</%s>\n", ROOT_TAG);
 634         }
 635     }
 636     else if (strcmp("graph", argv[1]) == 0) {
 637         char **calcpr;
 638 #ifdef notused  /*XXX*/
 639         const char *imgfile = argv[2]; /* rrd_graph changes argv pointer */
 640 #endif
 641         int xsize, ysize;
 642         double ymin,ymax;
 643         int i;
 644         int tostdout = (strcmp(argv[2],"-") == 0);
 645         if( rrd_graph(argc-1, &argv[1], &calcpr, &xsize, &ysize, NULL, &ymin, &ymax) != -1 ) {
 646             if (!tostdout)
 647                 printf ("%dx%d\n",xsize,ysize);
 648             if (calcpr) {
 649                 for(i=0;calcpr[i];i++){
 650                     if (!tostdout)
 651                         printf("%s\n",calcpr[i]);
 652                     free(calcpr[i]);
 653                 }
 654                 free(calcpr);
 655             }
 656         }
 657
 658     } else if (strcmp("tune", argv[1]) == 0)
 659                 rrd_tune(argc-1, &argv[1]);
 660     else {
 661                 rrd_set_error("unknown function '%s'",argv[1]);
 662     }
 663     if (rrd_test_error()) {
 664         fprintf(out, "ERROR: %s\n",rrd_get_error());
 665         rrd_clear_error();
 666         return 1;
 667     }
 668     return(0);
 669 }
 670
 671 int CountArgs(char *aLine)
 672 {
 673     int i=0;
 674     int aCount = 0;
 675     int inarg = 0;
 676     while (aLine[i] == ' ') i++;
 677     while (aLine[i] != 0){
 678         if((aLine[i]== ' ') && inarg){
 679             inarg = 0;
 680         }
 681         if((aLine[i]!= ' ') && ! inarg){
 682             inarg = 1;
 683             aCount++;
 684         }
 685         i++;
 686     }
 687     return aCount;
 688 }
 689
 690 /*
 691  * CreateArgs - take a string (aLine) and tokenize
 692  */
 693 int CreateArgs(char *pName, char *aLine, int argc, char **argv)
 694 {
 695     char        *getP, *putP;
 696     char        **pargv = argv;
 697     char        Quote = 0;
 698     int inArg = 0;
 699     int len;
 700
 701     len = strlen(aLine);
 702     /* remove trailing space and newlines */
 703     while (len && aLine[len] <= ' ') {
 704         aLine[len] = 0 ; len--;
 705     }
 706     /* sikp leading blanks */
 707     while (*aLine && *aLine <= ' ') aLine++;
 708
 709     pargv[0] = pName;
 710     argc = 1;
 711     getP = aLine;
 712     putP = aLine;
 713     while (*getP){
 714         switch (*getP) {
 715         case ' ':
 716             if (Quote){
 717                 *(putP++)=*getP;
 718             } else
 719                 if(inArg) {
 720                     *(putP++) = 0;
 721                     inArg = 0;
 722                 }
 723             break;
 724         case '"':
 725         case '\'':
 726             if (Quote != 0) {
 727                 if (Quote == *getP)
 728                     Quote = 0;
 729                 else {
 730                     *(putP++)=*getP;
 731                 }
 732             } else {
 733                 if(!inArg){
 734                     pargv[argc++] = putP;
 735                     inArg=1;
 736                 }
 737                 Quote = *getP;
 738             }
 739             break;
 740         default:
 741             if(!inArg){
 742                 pargv[argc++] = putP;
 743                 inArg=1;
 744             }
 745             *(putP++)=*getP;
 746             break;
 747         }
 748         getP++;
 749     }
 750
 751     *putP = '\0';
 752
 753     if (Quote)
 754         return -1;
 755     else
 756         return argc;
 757 }
 758
 759