src/rrd_tool.c

   1 /*****************************************************************************
   2  * RRDtool 1.2.12  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 1997-2006 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
 330              if (
 331 #ifdef HAVE_GETUID
 332                  getuid()
 333 #else
 334                  1
 335 #endif
 336                  == 0 ){
 337
 338 #ifdef HAVE_CHROOT
 339                 chroot(argv[2]);
 340                 if (errno!=0){
 341                    fprintf(stderr,"ERROR: can't change root to '%s' errno=%d\n",
 342                            argv[2],errno);
 343                     exit(errno);
 344                 }
 345                 ChangeRoot=1;
 346                 firstdir="/";
 347 #else
 348                 fprintf(stderr,"ERROR: change root is not supported by your OS "
 349                          "or at least by this copy of rrdtool\n");
 350                 exit(1);
 351 #endif
 352              } else {
 353                 firstdir=argv[2];
 354              }
 355           }
 356           if (strcmp(firstdir,"")){
 357              chdir(firstdir);
 358              if (errno!=0){
 359                 fprintf(stderr,"ERROR: %s\n",rrd_strerror(errno));
 360                 exit(errno);
 361              }
 362           }
 363
 364             while (fgets(aLine, sizeof(aLine)-1, stdin)){
 365                 if ((argc = CountArgs(aLine)) == 0)  {
 366                     printf("ERROR: not enough arguments\n");
 367                 }
 368                 if ((myargv = (char **) malloc((argc+1) *
 369                                                sizeof(char *))) == NULL)   {
 370                     perror("malloc");
 371                     exit(1);
 372                 }
 373                 if ((argc=CreateArgs(argv[0], aLine, argc, myargv)) < 0) {
 374                     printf("ERROR: creating arguments\n");
 375                 } else {
 376                     int ret = HandleInputLine(argc, myargv, stdout);
 377                     free(myargv);
 378                     if (ret == 0){
 379
 380
 381 #if HAVE_GETRUSAGE
 382                      getrusage(RUSAGE_SELF,&myusage);
 383                      gettimeofday(&currenttime,&tz);
 384                      printf("OK u:%1.2f s:%1.2f r:%1.2f\n",
 385                        (double)myusage.ru_utime.tv_sec+
 386                        (double)myusage.ru_utime.tv_usec/1000000.0,
 387                        (double)myusage.ru_stime.tv_sec+
 388                        (double)myusage.ru_stime.tv_usec/1000000.0,
 389                        (double)(currenttime.tv_sec-starttime.tv_sec)
 390                        +(double)(currenttime.tv_usec-starttime.tv_usec)
 391                        /1000000.0);
 392 #else
 393                       printf("OK\n");
 394
 395 #endif
 396                   }
 397                 }
 398                 fflush(stdout); /* this is important for pipes to work */
 399             }
 400         }
 401     else if (argc == 2)
 402         {
 403                 PrintUsage(argv[1]);
 404                 exit(0);
 405         }
 406     else if (argc == 3 && !strcmp(argv[1],"help"))
 407         {
 408                 PrintUsage(argv[2]);
 409                 exit(0);
 410         }
 411     else {
 412         exit(HandleInputLine(argc, argv, stderr));
 413     }
 414     return 0;
 415 }
 416
 417 /* HandleInputLine is NOT thread safe - due to readdir issues,
 418    resolving them portably is not really simple. */
 419 int HandleInputLine(int argc, char **argv, FILE* out)
 420 {
 421 #if defined(HAVE_OPENDIR) && defined (HAVE_READDIR)
 422     DIR           *curdir; /* to read current dir with ls */
 423     struct dirent *dent;
 424 #endif
 425 #if defined(HAVE_SYS_STAT_H)
 426     struct stat   st;
 427 #endif
 428
 429     if (RemoteMode){
 430        if (argc>1 && strcmp("quit", argv[1]) == 0){
 431           if (argc>2){
 432              printf("ERROR: invalid parameter count for quit\n");
 433              return(1);
 434           }
 435           exit(0);
 436        }
 437 #if defined(HAVE_OPENDIR) && defined(HAVE_READDIR) && defined(HAVE_CHDIR)
 438        if (argc>1 && strcmp("cd", argv[1]) == 0){
 439           if (argc>3){
 440              printf("ERROR: invalid parameter count for cd\n");
 441              return(1);
 442           }
 443 #if ! defined(HAVE_CHROOT) || ! defined(HAVE_GETUID)
 444           if (getuid()==0 && ! ChangeRoot){
 445              printf("ERROR: chdir security problem - rrdtool is running as "
 446                     "root but not chroot!\n");
 447              return(1);
 448           }
 449 #endif
 450           chdir(argv[2]);
 451           if (errno!=0){
 452              printf("ERROR: %s\n",rrd_strerror(errno));
 453              return(1);
 454           }
 455           return(0);
 456        }
 457        if (argc>1 && strcmp("mkdir", argv[1]) == 0){
 458           if (argc>3){
 459              printf("ERROR: invalid parameter count for mkdir\n");
 460              return(1);
 461           }
 462 #if ! defined(HAVE_CHROOT) || ! defined(HAVE_GETUID)
 463           if (getuid()==0 && ! ChangeRoot){
 464              printf("ERROR: mkdir security problem - rrdtool is running as "
 465                     "root but not chroot!\n");
 466              return(1);
 467           }
 468 #endif
 469           mkdir(argv[2],0777);
 470           if (errno!=0){
 471              printf("ERROR: %s\n",rrd_strerror(errno));
 472              return(1);
 473           }
 474           return(0);
 475        }
 476        if (argc>1 && strcmp("ls", argv[1]) == 0){
 477           if (argc>2){
 478              printf("ERROR: invalid parameter count for ls\n");
 479              return(1);
 480           }
 481           if ((curdir=opendir("."))!=NULL){
 482              while((dent=readdir(curdir))!=NULL){
 483                 if (!stat(dent->d_name,&st)){
 484                    if (S_ISDIR(st.st_mode)){
 485                       printf("d %s\n",dent->d_name);
 486                    }
 487                    if (strlen(dent->d_name)>4 && S_ISREG(st.st_mode)){
 488                       if (!strcmp(dent->d_name+NAMLEN(dent)-4,".rrd") ||
 489                           !strcmp(dent->d_name+NAMLEN(dent)-4,".RRD")){
 490                          printf("- %s\n",dent->d_name);
 491                       }
 492                    }
 493                 }
 494              }
 495           }
 496           else{
 497              printf("ERROR: %s\n",rrd_strerror(errno));
 498              return(errno);
 499           }
 500           return(0);
 501        }
 502 #endif /* opendir and readdir */
 503
 504     }
 505     if (argc < 3
 506         || strcmp("help", argv[1]) == 0
 507         || strcmp("--help", argv[1]) == 0
 508         || strcmp("-help", argv[1]) == 0
 509         || strcmp("-?", argv[1]) == 0
 510         || strcmp("-h", argv[1]) == 0 ) {
 511         PrintUsage("");
 512         return 0;
 513     }
 514
 515     if (strcmp("create", argv[1]) == 0)
 516         rrd_create(argc-1, &argv[1]);
 517     else if (strcmp("dump", argv[1]) == 0)
 518         rrd_dump(argc-1, &argv[1]);
 519     else if (strcmp("info", argv[1]) == 0
 520                 || strcmp("updatev", argv[1]) == 0){
 521         info_t *data,*save;
 522         if (strcmp("info",argv[1]) == 0)
 523            data=rrd_info(argc-1, &argv[1]);
 524     else
 525            data=rrd_update_v(argc-1, &argv[1]);
 526         while (data) {
 527             save=data;
 528             printf ("%s = ", data->key);
 529             free(data->key);
 530
 531             switch (data->type) {
 532             case RD_I_VAL:
 533                 if (isnan (data->value.u_val))
 534                     printf("NaN");
 535                 else
 536                     printf ("%0.10e", data->value.u_val);
 537                 break;
 538             case RD_I_CNT:
 539                 printf ("%lu", data->value.u_cnt);
 540                 break;
 541             case RD_I_INT:
 542                 printf ("%d", data->value.u_int);
 543                 break;
 544             case RD_I_STR:
 545                 printf ("\"%s\"", data->value.u_str);
 546                 free(data->value.u_str);
 547                 break;
 548             }
 549             data = data->next;
 550             free(save);
 551             printf ("\n");
 552         }
 553         free(data);
 554     }
 555
 556     else if (strcmp("--version", argv[1]) == 0 ||
 557              strcmp("version", argv[1]) == 0 ||
 558              strcmp("v", argv[1]) == 0 ||
 559              strcmp("-v", argv[1]) == 0  ||
 560              strcmp("-version", argv[1]) == 0  )
 561         printf("RRDtool " PACKAGE_VERSION "  Copyright by Tobi Oetiker, 1997-2005 (%f)\n",
 562                rrd_version());
 563     else if (strcmp("restore", argv[1]) == 0)
 564         rrd_restore(argc-1, &argv[1]);
 565     else if (strcmp("resize", argv[1]) == 0)
 566         rrd_resize(argc-1, &argv[1]);
 567     else if (strcmp("last", argv[1]) == 0)
 568         printf("%ld\n",rrd_last(argc-1, &argv[1]));
 569     else if (strcmp("first", argv[1]) == 0)
 570         printf("%ld\n",rrd_first(argc-1, &argv[1]));
 571     else if (strcmp("update", argv[1]) == 0)
 572         rrd_update(argc-1, &argv[1]);
 573     else if (strcmp("fetch", argv[1]) == 0) {
 574         time_t        start,end, ti;
 575         unsigned long step, ds_cnt,i,ii;
 576         rrd_value_t   *data,*datai;
 577         char          **ds_namv;
 578         if (rrd_fetch(argc-1, &argv[1],&start,&end,&step,&ds_cnt,&ds_namv,&data) != -1) {
 579             datai=data;
 580             printf("           ");
 581             for (i = 0; i<ds_cnt;i++)
 582                 printf("%20s",ds_namv[i]);
 583             printf ("\n\n");
 584             for (ti = start+step; ti <= end; ti += step){
 585                 printf("%10lu:", ti);
 586                 for (ii = 0; ii < ds_cnt; ii++)
 587                     printf(" %0.10e", *(datai++));
 588                 printf("\n");
 589             }
 590             for (i=0;i<ds_cnt;i++)
 591                   free(ds_namv[i]);
 592             free(ds_namv);
 593             free (data);
 594         }
 595     } else if (strcmp("xport", argv[1]) == 0) {
 596        int xxsize;
 597         unsigned long int j = 0;
 598         time_t        start,end, ti;
 599         unsigned long step, col_cnt,row_cnt;
 600         rrd_value_t   *data,*ptr;
 601         char          **legend_v;
 602        if(rrd_xport(argc-1, &argv[1], &xxsize,&start,&end,&step,&col_cnt,&legend_v,&data) != -1) {
 603           row_cnt = (end-start)/step;
 604           ptr = data;
 605           printf("<?xml version=\"1.0\" encoding=\"%s\"?>\n\n", XML_ENCODING);
 606           printf("<%s>\n", ROOT_TAG);
 607           printf("  <%s>\n", META_TAG);
 608           printf("    <%s>%lu</%s>\n", META_START_TAG, start+step, META_START_TAG);
 609           printf("    <%s>%lu</%s>\n", META_STEP_TAG, step, META_STEP_TAG);
 610           printf("    <%s>%lu</%s>\n", META_END_TAG, end, META_END_TAG);
 611           printf("    <%s>%lu</%s>\n", META_ROWS_TAG, row_cnt, META_ROWS_TAG);
 612           printf("    <%s>%lu</%s>\n", META_COLS_TAG, col_cnt, META_COLS_TAG);
 613           printf("    <%s>\n", LEGEND_TAG);
 614           for (j = 0; j < col_cnt; j++) {
 615             char *entry = NULL;
 616             entry = legend_v[j];
 617             printf("      <%s>%s</%s>\n", LEGEND_ENTRY_TAG, entry, LEGEND_ENTRY_TAG);
 618             free(entry);
 619           }
 620           free(legend_v);
 621           printf("    </%s>\n", LEGEND_TAG);
 622           printf("  </%s>\n", META_TAG);
 623           printf("  <%s>\n", DATA_TAG);
 624           for (ti = start+step; ti <= end; ti += step) {
 625             printf ("    <%s>", DATA_ROW_TAG);
 626             printf ("<%s>%lu</%s>", COL_TIME_TAG, ti, COL_TIME_TAG);
 627             for (j = 0; j < col_cnt; j++) {
 628               rrd_value_t newval = DNAN;
 629               newval = *ptr;
 630               if(isnan(newval)){
 631                 printf("<%s>NaN</%s>", COL_DATA_TAG, COL_DATA_TAG);
 632               } else {
 633                 printf("<%s>%0.10e</%s>", COL_DATA_TAG, newval, COL_DATA_TAG);
 634               };
 635               ptr++;
 636             }
 637             printf("</%s>\n", DATA_ROW_TAG);
 638           }
 639           free(data);
 640           printf("  </%s>\n", DATA_TAG);
 641           printf("</%s>\n", ROOT_TAG);
 642         }
 643     }
 644     else if (strcmp("graph", argv[1]) == 0) {
 645         char **calcpr;
 646 #ifdef notused  /*XXX*/
 647         const char *imgfile = argv[2]; /* rrd_graph changes argv pointer */
 648 #endif
 649         int xsize, ysize;
 650         double ymin,ymax;
 651         int i;
 652         int tostdout = (strcmp(argv[2],"-") == 0);
 653         int imginfo = 0;
 654         for (i=2;i<argc;i++){
 655                 if (strcmp(argv[i],"--imginfo") == 0 || strcmp(argv[i],"-f") == 0){
 656                         imginfo = 1;
 657                         break;
 658                 }
 659         }
 660         if( rrd_graph(argc-1, &argv[1], &calcpr, &xsize, &ysize, NULL, &ymin, &ymax) != -1 ) {
 661             if (!tostdout && !imginfo)
 662                 printf ("%dx%d\n",xsize,ysize);
 663             if (calcpr) {
 664                 for(i=0;calcpr[i];i++){
 665                     if (!tostdout)
 666                         printf("%s\n",calcpr[i]);
 667                     free(calcpr[i]);
 668                 }
 669                 free(calcpr);
 670             }
 671         }
 672
 673     } else if (strcmp("tune", argv[1]) == 0)
 674                 rrd_tune(argc-1, &argv[1]);
 675     else {
 676                 rrd_set_error("unknown function '%s'",argv[1]);
 677     }
 678     if (rrd_test_error()) {
 679         fprintf(out, "ERROR: %s\n",rrd_get_error());
 680         rrd_clear_error();
 681         return 1;
 682     }
 683     return(0);
 684 }
 685
 686 int CountArgs(char *aLine)
 687 {
 688     int i=0;
 689     int aCount = 0;
 690     int inarg = 0;
 691     while (aLine[i] == ' ') i++;
 692     while (aLine[i] != 0){
 693         if((aLine[i]== ' ') && inarg){
 694             inarg = 0;
 695         }
 696         if((aLine[i]!= ' ') && ! inarg){
 697             inarg = 1;
 698             aCount++;
 699         }
 700         i++;
 701     }
 702     return aCount;
 703 }
 704
 705 /*
 706  * CreateArgs - take a string (aLine) and tokenize
 707  */
 708 int CreateArgs(char *pName, char *aLine, int argc, char **argv)
 709 {
 710     char        *getP, *putP;
 711     char        **pargv = argv;
 712     char        Quote = 0;
 713     int inArg = 0;
 714     int len;
 715
 716     len = strlen(aLine);
 717     /* remove trailing space and newlines */
 718     while (len && aLine[len] <= ' ') {
 719         aLine[len] = 0 ; len--;
 720     }
 721     /* sikp leading blanks */
 722     while (*aLine && *aLine <= ' ') aLine++;
 723
 724     pargv[0] = pName;
 725     argc = 1;
 726     getP = aLine;
 727     putP = aLine;
 728     while (*getP){
 729         switch (*getP) {
 730         case ' ':
 731             if (Quote){
 732                 *(putP++)=*getP;
 733             } else
 734                 if(inArg) {
 735                     *(putP++) = 0;
 736                     inArg = 0;
 737                 }
 738             break;
 739         case '"':
 740         case '\'':
 741             if (Quote != 0) {
 742                 if (Quote == *getP)
 743                     Quote = 0;
 744                 else {
 745                     *(putP++)=*getP;
 746                 }
 747             } else {
 748                 if(!inArg){
 749                     pargv[argc++] = putP;
 750                     inArg=1;
 751                 }
 752                 Quote = *getP;
 753             }
 754             break;
 755         default:
 756             if(!inArg){
 757                 pargv[argc++] = putP;
 758                 inArg=1;
 759             }
 760             *(putP++)=*getP;
 761             break;
 762         }
 763         getP++;
 764     }
 765
 766     *putP = '\0';
 767
 768     if (Quote)
 769         return -1;
 770     else
 771         return argc;
 772 }
 773
 774