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 #ifdef HAVE_CHROOT
 303     char *firstdir="";
 304 #endif
 305 #ifdef MUST_DISABLE_SIGFPE
 306     signal(SIGFPE,SIG_IGN);
 307 #endif
 308 #ifdef MUST_DISABLE_FPMASK
 309     fpsetmask(0);
 310 #endif
 311     if (argc == 1)
 312         {
 313             PrintUsage("");
 314             return 0;
 315         }
 316
 317     if (((argc == 2)||(argc == 3)) && !strcmp("-",argv[1]))
 318         {
 319 #if HAVE_GETRUSAGE
 320           struct rusage  myusage;
 321           struct timeval starttime;
 322           struct timeval currenttime;
 323           struct timezone tz;
 324
 325             tz.tz_minuteswest =0;
 326             tz.tz_dsttime=0;
 327             gettimeofday(&starttime,&tz);
 328 #endif
 329           RemoteMode=1;
 330           if ((argc == 3) && strcmp("",argv[2])){
 331              if (getuid()==0){
 332 #ifdef HAVE_CHROOT
 333                 chroot(argv[2]);
 334                 if (errno!=0){
 335                    fprintf(stderr,"ERROR: can't change root to '%s' errno=%d\n",
 336                            argv[2],errno);
 337                     exit(errno);
 338                 }
 339                 ChangeRoot=1;
 340                 firstdir="/";
 341 #else
 342                 fprintf(stderr,"ERROR: change root is not supported by your OS "
 343                          "or at least by this copy of rrdtool\n");
 344                 exit(1);
 345 #endif
 346              } else {
 347                 firstdir=argv[2];
 348              }
 349           }
 350           if (strcmp(firstdir,"")){
 351              chdir(firstdir);
 352              if (errno!=0){
 353                 fprintf(stderr,"ERROR: %s\n",rrd_strerror(errno));
 354                 exit(errno);
 355              }
 356           }
 357
 358             while (fgets(aLine, sizeof(aLine)-1, stdin)){
 359                 if ((argc = CountArgs(aLine)) == 0)  {
 360                     fprintf(stderr,"ERROR: not enough arguments\n");
 361                 }
 362                 if ((myargv = (char **) malloc((argc+1) *
 363                                                sizeof(char *))) == NULL)   {
 364                     perror("malloc");
 365                     exit(1);
 366                 }
 367                 if ((argc=CreateArgs(argv[0], aLine, argc, myargv)) < 0) {
 368                     printf("ERROR: creating arguments\n");
 369                 } else {
 370                     int ret = HandleInputLine(argc, myargv, stdout);
 371                     free(myargv);
 372                     if (ret == 0){
 373
 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
 389 #endif
 390                   }
 391                 }
 392                 fflush(stdout); /* this is important for pipes to work */
 393             }
 394         }
 395     else if (argc == 2)
 396         {
 397                 PrintUsage(argv[1]);
 398                 exit(0);
 399         }
 400     else if (argc == 3 && !strcmp(argv[1],"help"))
 401         {
 402                 PrintUsage(argv[2]);
 403                 exit(0);
 404         }
 405     else {
 406         exit(HandleInputLine(argc, argv, stderr));
 407     }
 408     return 0;
 409 }
 410
 411 /* HandleInputLine is NOT thread safe - due to readdir issues,
 412    resolving them portably is not really simple. */
 413 int HandleInputLine(int argc, char **argv, FILE* out)
 414 {
 415 #if defined(HAVE_OPENDIR) && defined (HAVE_READDIR)
 416     DIR           *curdir; /* to read current dir with ls */
 417     struct dirent *dent;
 418 #endif
 419 #if defined(HAVE_SYS_STAT_H)
 420     struct stat   st;
 421 #endif
 422
 423     if (RemoteMode){
 424        if (argc>1 && strcmp("quit", argv[1]) == 0){
 425           if (argc>2){
 426              printf("ERROR: invalid parameter count for quit\n");
 427              return(1);
 428           }
 429           exit(0);
 430        }
 431 #if defined(HAVE_OPENDIR) && defined(HAVE_READDIR) && defined(HAVE_CHDIR)
 432        if (argc>1 && strcmp("cd", argv[1]) == 0){
 433           if (argc>3){
 434              printf("ERROR: invalid parameter count for cd\n");
 435              return(1);
 436           }
 437 #if ! defined(HAVE_CHROOT) || ! defined(HAVE_GETUID)
 438           if (getuid()==0 && ! ChangeRoot){
 439              printf("ERROR: chdir security problem - rrdtool is running as "
 440                     "root an no chroot!\n");
 441              return(1);
 442           }
 443 #endif
 444           chdir(argv[2]);
 445           if (errno!=0){
 446              printf("ERROR: %s\n",rrd_strerror(errno));
 447              return(1);
 448           }
 449           return(0);
 450        }
 451        if (argc>1 && strcmp("mkdir", argv[1]) == 0){
 452           if (argc>3){
 453              printf("ERROR: invalid parameter count for mkdir\n");
 454              return(1);
 455           }
 456 #if ! defined(HAVE_CHROOT) || ! defined(HAVE_GETUID)
 457           if (getuid()==0 && ! ChangeRoot){
 458              printf("ERROR: mkdir security problem - rrdtool is running as "
 459                     "root an no chroot!\n");
 460              return(1);
 461           }
 462 #endif
 463           mkdir(argv[2],0777);
 464           if (errno!=0){
 465              printf("ERROR: %s\n",rrd_strerror(errno));
 466              return(1);
 467           }
 468           return(0);
 469        }
 470        if (argc>1 && strcmp("ls", argv[1]) == 0){
 471           if (argc>2){
 472              printf("ERROR: invalid parameter count for ls\n");
 473              return(1);
 474           }
 475           if ((curdir=opendir("."))!=NULL){
 476              while((dent=readdir(curdir))!=NULL){
 477                 if (!stat(dent->d_name,&st)){
 478                    if (S_ISDIR(st.st_mode)){
 479                       printf("d %s\n",dent->d_name);
 480                    }
 481                    if (strlen(dent->d_name)>4 && S_ISREG(st.st_mode)){
 482                       if (!strcmp(dent->d_name+NAMLEN(dent)-4,".rrd") ||
 483                           !strcmp(dent->d_name+NAMLEN(dent)-4,".RRD")){
 484                          printf("- %s\n",dent->d_name);
 485                       }
 486                    }
 487                 }
 488              }
 489           }
 490           else{
 491              printf("ERROR: %s\n",rrd_strerror(errno));
 492              return(errno);
 493           }
 494           return(0);
 495        }
 496 #endif /* opendir and readdir */
 497
 498     }
 499     if (argc < 3
 500         || strcmp("help", argv[1]) == 0
 501         || strcmp("--help", argv[1]) == 0
 502         || strcmp("-help", argv[1]) == 0
 503         || strcmp("-?", argv[1]) == 0
 504         || strcmp("-h", argv[1]) == 0 ) {
 505         PrintUsage("");
 506         return 0;
 507     }
 508
 509     if (strcmp("create", argv[1]) == 0)
 510         rrd_create(argc-1, &argv[1]);
 511     else if (strcmp("dump", argv[1]) == 0)
 512         rrd_dump(argc-1, &argv[1]);
 513     else if (strcmp("info", argv[1]) == 0
 514                 || strcmp("updatev", argv[1]) == 0){
 515         info_t *data,*save;
 516         if (strcmp("info",argv[1]) == 0)
 517            data=rrd_info(argc-1, &argv[1]);
 518     else
 519            data=rrd_update_v(argc-1, &argv[1]);
 520         while (data) {
 521             save=data;
 522             printf ("%s = ", data->key);
 523             free(data->key);
 524
 525             switch (data->type) {
 526             case RD_I_VAL:
 527                 if (isnan (data->value.u_val))
 528                     printf("NaN");
 529                 else
 530                     printf ("%0.10e", data->value.u_val);
 531                 break;
 532             case RD_I_CNT:
 533                 printf ("%lu", data->value.u_cnt);
 534                 break;
 535             case RD_I_INT:
 536                 printf ("%d", data->value.u_int);
 537                 break;
 538             case RD_I_STR:
 539                 printf ("\"%s\"", data->value.u_str);
 540                 free(data->value.u_str);
 541                 break;
 542             }
 543             data = data->next;
 544             free(save);
 545             printf ("\n");
 546         }
 547         free(data);
 548     }
 549
 550     else if (strcmp("--version", argv[1]) == 0 ||
 551              strcmp("version", argv[1]) == 0 ||
 552              strcmp("v", argv[1]) == 0 ||
 553              strcmp("-v", argv[1]) == 0  ||
 554              strcmp("-version", argv[1]) == 0  )
 555         printf("RRDtool " PACKAGE_VERSION "  Copyright by Tobi Oetiker, 1997-2005 (%f)\n",
 556                rrd_version());
 557     else if (strcmp("restore", argv[1]) == 0)
 558         rrd_restore(argc-1, &argv[1]);
 559     else if (strcmp("resize", argv[1]) == 0)
 560         rrd_resize(argc-1, &argv[1]);
 561     else if (strcmp("last", argv[1]) == 0)
 562         printf("%ld\n",rrd_last(argc-1, &argv[1]));
 563     else if (strcmp("first", argv[1]) == 0)
 564         printf("%ld\n",rrd_first(argc-1, &argv[1]));
 565     else if (strcmp("update", argv[1]) == 0)
 566         rrd_update(argc-1, &argv[1]);
 567     else if (strcmp("fetch", argv[1]) == 0) {
 568         time_t        start,end, ti;
 569         unsigned long step, ds_cnt,i,ii;
 570         rrd_value_t   *data,*datai;
 571         char          **ds_namv;
 572         if (rrd_fetch(argc-1, &argv[1],&start,&end,&step,&ds_cnt,&ds_namv,&data) != -1) {
 573             datai=data;
 574             printf("           ");
 575             for (i = 0; i<ds_cnt;i++)
 576                 printf("%20s",ds_namv[i]);
 577             printf ("\n\n");
 578             for (ti = start+step; ti <= end; ti += step){
 579                 printf("%10lu:", ti);
 580                 for (ii = 0; ii < ds_cnt; ii++)
 581                     printf(" %0.10e", *(datai++));
 582                 printf("\n");
 583             }
 584             for (i=0;i<ds_cnt;i++)
 585                   free(ds_namv[i]);
 586             free(ds_namv);
 587             free (data);
 588         }
 589     } else if (strcmp("xport", argv[1]) == 0) {
 590        int xxsize;
 591         unsigned long int j = 0;
 592         time_t        start,end, ti;
 593         unsigned long step, col_cnt,row_cnt;
 594         rrd_value_t   *data,*ptr;
 595         char          **legend_v;
 596        if(rrd_xport(argc-1, &argv[1], &xxsize,&start,&end,&step,&col_cnt,&legend_v,&data) != -1) {
 597           row_cnt = (end-start)/step;
 598           ptr = data;
 599           printf("<?xml version=\"1.0\" encoding=\"%s\"?>\n\n", XML_ENCODING);
 600           printf("<%s>\n", ROOT_TAG);
 601           printf("  <%s>\n", META_TAG);
 602           printf("    <%s>%lu</%s>\n", META_START_TAG, start+step, META_START_TAG);
 603           printf("    <%s>%lu</%s>\n", META_STEP_TAG, step, META_STEP_TAG);
 604           printf("    <%s>%lu</%s>\n", META_END_TAG, end, META_END_TAG);
 605           printf("    <%s>%lu</%s>\n", META_ROWS_TAG, row_cnt, META_ROWS_TAG);
 606           printf("    <%s>%lu</%s>\n", META_COLS_TAG, col_cnt, META_COLS_TAG);
 607           printf("    <%s>\n", LEGEND_TAG);
 608           for (j = 0; j < col_cnt; j++) {
 609             char *entry = NULL;
 610             entry = legend_v[j];
 611             printf("      <%s>%s</%s>\n", LEGEND_ENTRY_TAG, entry, LEGEND_ENTRY_TAG);
 612             free(entry);
 613           }
 614           free(legend_v);
 615           printf("    </%s>\n", LEGEND_TAG);
 616           printf("  </%s>\n", META_TAG);
 617           printf("  <%s>\n", DATA_TAG);
 618           for (ti = start+step; ti <= end; ti += step) {
 619             printf ("    <%s>", DATA_ROW_TAG);
 620             printf ("<%s>%lu</%s>", COL_TIME_TAG, ti, COL_TIME_TAG);
 621             for (j = 0; j < col_cnt; j++) {
 622               rrd_value_t newval = DNAN;
 623               newval = *ptr;
 624               if(isnan(newval)){
 625                 printf("<%s>NaN</%s>", COL_DATA_TAG, COL_DATA_TAG);
 626               } else {
 627                 printf("<%s>%0.10e</%s>", COL_DATA_TAG, newval, COL_DATA_TAG);
 628               };
 629               ptr++;
 630             }
 631             printf("</%s>\n", DATA_ROW_TAG);
 632           }
 633           free(data);
 634           printf("  </%s>\n", DATA_TAG);
 635           printf("</%s>\n", ROOT_TAG);
 636         }
 637     }
 638     else if (strcmp("graph", argv[1]) == 0) {
 639         char **calcpr;
 640 #ifdef notused  /*XXX*/
 641         const char *imgfile = argv[2]; /* rrd_graph changes argv pointer */
 642 #endif
 643         int xsize, ysize;
 644         double ymin,ymax;
 645         int i;
 646         int tostdout = (strcmp(argv[2],"-") == 0);
 647         if( rrd_graph(argc-1, &argv[1], &calcpr, &xsize, &ysize, NULL, &ymin, &ymax) != -1 ) {
 648             if (!tostdout)
 649                 printf ("%dx%d\n",xsize,ysize);
 650             if (calcpr) {
 651                 for(i=0;calcpr[i];i++){
 652                     if (!tostdout)
 653                         printf("%s\n",calcpr[i]);
 654                     free(calcpr[i]);
 655                 }
 656                 free(calcpr);
 657             }
 658         }
 659
 660     } else if (strcmp("tune", argv[1]) == 0)
 661                 rrd_tune(argc-1, &argv[1]);
 662     else {
 663                 rrd_set_error("unknown function '%s'",argv[1]);
 664     }
 665     if (rrd_test_error()) {
 666         fprintf(out, "ERROR: %s\n",rrd_get_error());
 667         rrd_clear_error();
 668         return 1;
 669     }
 670     return(0);
 671 }
 672
 673 int CountArgs(char *aLine)
 674 {
 675     int i=0;
 676     int aCount = 0;
 677     int inarg = 0;
 678     while (aLine[i] == ' ') i++;
 679     while (aLine[i] != 0){
 680         if((aLine[i]== ' ') && inarg){
 681             inarg = 0;
 682         }
 683         if((aLine[i]!= ' ') && ! inarg){
 684             inarg = 1;
 685             aCount++;
 686         }
 687         i++;
 688     }
 689     return aCount;
 690 }
 691
 692 /*
 693  * CreateArgs - take a string (aLine) and tokenize
 694  */
 695 int CreateArgs(char *pName, char *aLine, int argc, char **argv)
 696 {
 697     char        *getP, *putP;
 698     char        **pargv = argv;
 699     char        Quote = 0;
 700     int inArg = 0;
 701     int len;
 702
 703     len = strlen(aLine);
 704     /* remove trailing space and newlines */
 705     while (len && aLine[len] <= ' ') {
 706         aLine[len] = 0 ; len--;
 707     }
 708     /* sikp leading blanks */
 709     while (*aLine && *aLine <= ' ') aLine++;
 710
 711     pargv[0] = pName;
 712     argc = 1;
 713     getP = aLine;
 714     putP = aLine;
 715     while (*getP){
 716         switch (*getP) {
 717         case ' ':
 718             if (Quote){
 719                 *(putP++)=*getP;
 720             } else
 721                 if(inArg) {
 722                     *(putP++) = 0;
 723                     inArg = 0;
 724                 }
 725             break;
 726         case '"':
 727         case '\'':
 728             if (Quote != 0) {
 729                 if (Quote == *getP)
 730                     Quote = 0;
 731                 else {
 732                     *(putP++)=*getP;
 733                 }
 734             } else {
 735                 if(!inArg){
 736                     pargv[argc++] = putP;
 737                     inArg=1;
 738                 }
 739                 Quote = *getP;
 740             }
 741             break;
 742         default:
 743             if(!inArg){
 744                 pargv[argc++] = putP;
 745                 inArg=1;
 746             }
 747             *(putP++)=*getP;
 748             break;
 749         }
 750         getP++;
 751     }
 752
 753     *putP = '\0';
 754
 755     if (Quote)
 756         return -1;
 757     else
 758         return argc;
 759 }
 760
 761