src/rrd_tool.c

   1 /*****************************************************************************
   2  * RRDtool 1.1.x  Copyright Tobias Oetiker, 1997 - 2004
   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 1.1.x  Copyright 1997-2004 by Tobias Oetiker <tobi@oetiker.ch>\n"
  26 #ifndef WIN32
  27            "               Compiled " MAKE_TIMESTAMP "\n\n"
  28 #else
  29            "               Compiled " __DATE__ " " __TIME__ "\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, 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_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[--resolution|-r resolution]\n"
  85            "\t\t[--start|-s start] [--end|-e 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[--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     char help_graph2[] =
 102            "\t\t[-j|--only-graph]\n"
 103            "\t\t[--font FONTTAG:size:font]\n"
 104            "\t\t[--zoom factor]\n"
 105            "\t\t[--alt-autoscale]\n"
 106            "\t\t[--alt-autoscale-max]\n"
 107            "\t\t[--units-exponent value]\n"
 108            "\t\t[--step seconds]\n"
 109            "\t\t[-f|--imginfo printfstr]\n"
 110            "\t\t[-a|--imgformat PNG]\n"
 111            "\t\t[-c|--color COLORTAG#rrggbb[aa]] [-t|--title string]\n";
 112     char help_graph3[] =
 113            "\t\t[DEF:vname=rrd:ds-name:CF]\n"
 114            "\t\t[CDEF:vname=rpn-expression]\n"
 115            "\t\t[PRINT:vname:CF:format]\n"
 116            "\t\t[GPRINT:vname:CF:format]\n"
 117            "\t\t[HRULE:value#rrggbb[aa][:legend]]\n"
 118            "\t\t[VRULE:value#rrggbb[aa][:legend]]\n"
 119            "\t\t[LINE{1|2|3}:vname[#rrggbb[aa][:legend]]]\n"
 120            "\t\t[AREA:vname[#rrggbb[aa][:legend]]]\n"
 121            "\t\t[STACK:vname[#rrggbb[aa][:legend]]]\n\n";
 122
 123     char help_tune1[] =
 124            " * tune -  Modify some basic properties of an RRD\n\n"
 125            "\trrdtool tune filename\n"
 126            "\t\t[--heartbeat|-h ds-name:heartbeat]\n"
 127            "\t\t[--data-source-type|-d ds-name:DST]\n"
 128            "\t\t[--data-source-rename|-r old-name:new-name]\n"
 129            "\t\t[--minimum|-i ds-name:min] [--maximum|-a ds-name:max]\n"
 130            "\t\t[--deltapos scale-value] [--deltaneg scale-value]\n"
 131            "\t\t[--failure-threshold integer]\n"
 132            "\t\t[--window-length integer]\n"
 133            "\t\t[--alpha adaptation-parameter]\n";
 134     char help_tune2[] =
 135            " * tune -  Modify some basic properties of an RRD\n\n"
 136            "\t\t[--beta adaptation-parameter]\n"
 137            "\t\t[--gamma adaptation-parameter]\n"
 138            "\t\t[--gamma-deviation adaptation-parameter]\n"
 139            "\t\t[--aberrant-reset ds-name]\n\n";
 140
 141     char help_resize[] =
 142            " * resize - alter the length of one of the RRAs in an RRD\n\n"
 143            "\trrdtool resize filename rranum GROW|SHRINK rows\n\n";
 144
 145     char help_xport[] =
 146            "* xport - generate XML dump from one or several RRD\n\n"
 147            "\trrdtool xport [-s|--start seconds] [-e|--end seconds]\n"
 148            "\t\t[-m|--maxrows rows]\n"
 149            "\t\t[--step seconds]\n"
 150            "\t\t[DEF:vname=rrd:ds-name:CF]\n"
 151            "\t\t[CDEF:vname=rpn-expression]\n"
 152            "\t\t[XPORT:vname:legend]\n\n";
 153
 154     char help_quit[] =
 155            " * quit - closing a session in remote mode\n\n"
 156            "\trrdtool quit\n\n";
 157
 158     char help_ls[] =
 159            " * ls - lists all *.rrd files in current directory\n\n"
 160            "\trrdtool ls\n\n";
 161
 162     char help_cd[] =
 163            " * cd - changes the current directory\n\n"
 164            "\trrdtool cd new directory\n\n";
 165
 166     char help_mkdir[] =
 167            " * mkdir - creates a new directory\n\n"
 168            "\trrdtool mkdir newdirectoryname\n\n";
 169
 170     char help_lic[] =
 171            "RRDtool is distributed under the Terms of the GNU General\n"
 172            "Public License Version 2. (www.gnu.org/copyleft/gpl.html)\n\n"
 173
 174            "For more information read the RRD manpages\n\n";
 175
 176     enum { C_NONE, C_CREATE, C_DUMP, C_INFO, C_RESTORE, C_LAST,
 177            C_UPDATE, C_FETCH, C_GRAPH, C_TUNE, C_RESIZE, C_XPORT,
 178            C_QUIT, C_LS, C_CD, C_MKDIR, C_UPDATEV };
 179
 180     int help_cmd = C_NONE;
 181
 182     if (cmd)
 183         {
 184             if (!strcmp(cmd,"create"))
 185                 help_cmd = C_CREATE;
 186             else if (!strcmp(cmd,"dump"))
 187                 help_cmd = C_DUMP;
 188             else if (!strcmp(cmd,"info"))
 189                 help_cmd = C_INFO;
 190             else if (!strcmp(cmd,"restore"))
 191                 help_cmd = C_RESTORE;
 192             else if (!strcmp(cmd,"last"))
 193                 help_cmd = C_LAST;
 194             else if (!strcmp(cmd,"update"))
 195                 help_cmd = C_UPDATE;
 196             else if (!strcmp(cmd,"updatev"))
 197                 help_cmd = C_UPDATEV;
 198             else if (!strcmp(cmd,"fetch"))
 199                 help_cmd = C_FETCH;
 200             else if (!strcmp(cmd,"graph"))
 201                 help_cmd = C_GRAPH;
 202             else if (!strcmp(cmd,"tune"))
 203                 help_cmd = C_TUNE;
 204             else if (!strcmp(cmd,"resize"))
 205                 help_cmd = C_RESIZE;
 206             else if (!strcmp(cmd,"xport"))
 207                 help_cmd = C_XPORT;
 208             else if (!strcmp(cmd,"quit"))
 209                 help_cmd = C_QUIT;
 210             else if (!strcmp(cmd,"ls"))
 211                 help_cmd = C_LS;
 212             else if (!strcmp(cmd,"cd"))
 213                 help_cmd = C_CD;
 214             else if (!strcmp(cmd,"mkdir"))
 215                 help_cmd = C_MKDIR;
 216         }
 217     fputs(help_main, stdout);
 218     switch (help_cmd)
 219         {
 220             case C_NONE:
 221                 fputs(help_list, stdout);
 222                 if (RemoteMode){
 223                    fputs(help_listremote, stdout);
 224                 }
 225                 break;
 226             case C_CREATE:
 227                 fputs(help_create, stdout);
 228                 break;
 229             case C_DUMP:
 230                 fputs(help_dump, stdout);
 231                 break;
 232             case C_INFO:
 233                 fputs(help_info, stdout);
 234                 break;
 235             case C_RESTORE:
 236                 fputs(help_restore, stdout);
 237                 break;
 238             case C_LAST:
 239                 fputs(help_last, stdout);
 240                 break;
 241             case C_UPDATE:
 242                 fputs(help_update, stdout);
 243                 break;
 244             case C_UPDATEV:
 245                 fputs(help_updatev, stdout);
 246                 break;
 247             case C_FETCH:
 248                 fputs(help_fetch, stdout);
 249                 break;
 250             case C_GRAPH:
 251                 fputs(help_graph1, stdout);
 252                 fputs(help_graph2, stdout);
 253                 fputs(help_graph3, stdout);
 254                 break;
 255             case C_TUNE:
 256                 fputs(help_tune1, stdout);
 257                 fputs(help_tune2, stdout);
 258                 break;
 259             case C_RESIZE:
 260                 fputs(help_resize, stdout);
 261                 break;
 262             case C_XPORT:
 263                 fputs(help_xport, stdout);
 264                 break;
 265             case C_QUIT:
 266                 fputs(help_quit, stdout);
 267                 break;
 268             case C_LS:
 269                 fputs(help_ls, stdout);
 270                 break;
 271             case C_CD:
 272                 fputs(help_cd, stdout);
 273                 break;
 274             case C_MKDIR:
 275                 fputs(help_mkdir, stdout);
 276                 break;
 277         }
 278     fputs(help_lic, stdout);
 279 }
 280
 281
 282 int main(int argc, char *argv[])
 283 {
 284     char **myargv;
 285     char aLine[MAX_LENGTH];
 286 #ifdef HAVE_CHROOT
 287     char *firstdir="";
 288 #endif
 289 #ifdef MUST_DISABLE_SIGFPE
 290     signal(SIGFPE,SIG_IGN);
 291 #endif
 292 #ifdef MUST_DISABLE_FPMASK
 293     fpsetmask(0);
 294 #endif
 295     if (argc == 1)
 296         {
 297             PrintUsage("");
 298             return 0;
 299         }
 300
 301     if (((argc == 2)||(argc == 3)) && !strcmp("-",argv[1]))
 302         {
 303 #if HAVE_GETRUSAGE
 304           struct rusage  myusage;
 305           struct timeval starttime;
 306           struct timeval currenttime;
 307           struct timezone tz;
 308
 309             tz.tz_minuteswest =0;
 310             tz.tz_dsttime=0;
 311             gettimeofday(&starttime,&tz);
 312 #endif
 313           RemoteMode=1;
 314 #ifdef HAVE_CHROOT
 315           if ((argc == 3) && strcmp("",argv[2])){
 316              if (getuid()==0){
 317                 chroot(argv[2]);
 318                 if (errno!=0){
 319                    fprintf(stderr,"ERROR: can't change root to '%s' errno=%d\n",
 320                            argv[2],errno);
 321                     exit(errno);
 322                 }
 323                 ChangeRoot=1;
 324                 firstdir="/";
 325              }
 326              else{
 327                 firstdir=argv[2];
 328              }
 329           }
 330           if (strcmp(firstdir,"")){
 331              chdir(firstdir);
 332              if (errno!=0){
 333                 fprintf(stderr,"ERROR: %s\n",rrd_strerror(errno));
 334                 exit(errno);
 335              }
 336           }
 337 #else
 338           fprintf(stderr,"ERROR: change root is not supported by your OS "
 339                          "or at least by this copy of rrdtool\n");
 340           exit(1);
 341 #endif
 342
 343             while (fgets(aLine, sizeof(aLine)-1, stdin)){
 344                 if ((argc = CountArgs(aLine)) == 0)  {
 345                     fprintf(stderr,"ERROR: not enough arguments\n");
 346                 }
 347                 if ((myargv = (char **) malloc((argc+1) *
 348                                                sizeof(char *))) == NULL)   {
 349                     perror("malloc");
 350                     return -1;
 351                 }
 352                 if ((argc=CreateArgs(argv[0], aLine, argc, myargv)) < 0) {
 353                     fprintf(stderr, "ERROR: creating arguments\n");
 354                     return -1;
 355                 }
 356
 357                 if (HandleInputLine(argc, myargv, stdout))
 358                     return -1;
 359                 free(myargv);
 360
 361 #if HAVE_GETRUSAGE
 362                 getrusage(RUSAGE_SELF,&myusage);
 363                 gettimeofday(&currenttime,&tz);
 364                 printf("OK u:%1.2f s:%1.2f r:%1.2f\n",
 365                        (double)myusage.ru_utime.tv_sec+
 366                        (double)myusage.ru_utime.tv_usec/1000000.0,
 367                        (double)myusage.ru_stime.tv_sec+
 368                        (double)myusage.ru_stime.tv_usec/1000000.0,
 369                        (double)(currenttime.tv_sec-starttime.tv_sec)
 370                        +(double)(currenttime.tv_usec-starttime.tv_usec)
 371                        /1000000.0);
 372 #else
 373                 printf("OK\n");
 374 #endif
 375                 fflush(stdout); /* this is important for pipes to work */
 376             }
 377         }
 378     else if (argc == 2)
 379         {
 380                 PrintUsage(argv[1]);
 381                 exit(0);
 382         }
 383     else if (argc == 3 && !strcmp(argv[1],"help"))
 384         {
 385                 PrintUsage(argv[2]);
 386                 exit(0);
 387         }
 388     else {
 389         if(HandleInputLine(argc, argv, stderr)) {
 390             return 1;
 391         }
 392     }
 393     return 0;
 394 }
 395
 396 /* HandleInputLine is NOT thread safe - due to readdir issues,
 397    resolving them portably is not really simple. */
 398 int HandleInputLine(int argc, char **argv, FILE* out)
 399 {
 400 #if defined(HAVE_OPENDIR) && defined (HAVE_READDIR)
 401     DIR           *curdir; /* to read current dir with ls */
 402     struct dirent *dent;
 403 #endif
 404 #if defined(HAVE_SYS_STAT_H)
 405     struct stat   st;
 406 #endif
 407     optind=0; /* reset gnu getopt */
 408     opterr=0; /* no error messages */
 409
 410     if (RemoteMode){
 411        if (argc>1 && strcmp("quit", argv[1]) == 0){
 412           if (argc>2){
 413              printf("ERROR: invalid parameter count for quit\n");
 414              return(0);
 415           }
 416           exit(0);
 417        }
 418 #if defined(HAVE_OPENDIR) && defined(HAVE_READDIR) && defined(HAVE_CHDIR)
 419        if (argc>1 && strcmp("cd", argv[1]) == 0){
 420           if (argc>3){
 421              printf("ERROR: invalid parameter count for cd\n");
 422              return(0);
 423           }
 424 #if ! defined(HAVE_CHROOT) || ! defined(HAVE_GETUID)
 425           if (getuid()==0 && ! ChangeRoot){
 426              printf("ERROR: chdir security problem - rrdtool is running as "
 427                     "root an no chroot!\n");
 428              return(0);
 429           }
 430 #endif
 431           chdir(argv[2]);
 432           if (errno!=0){
 433              printf("ERROR: %s\n",rrd_strerror(errno));
 434           }
 435           return(0);
 436        }
 437        if (argc>1 && strcmp("mkdir", argv[1]) == 0){
 438           if (argc>3){
 439              printf("ERROR: invalid parameter count for mkdir\n");
 440              return(0);
 441           }
 442 #if ! defined(HAVE_CHROOT) || ! defined(HAVE_GETUID)
 443           if (getuid()==0 && ! ChangeRoot){
 444              printf("ERROR: mkdir security problem - rrdtool is running as "
 445                     "root an no chroot!\n");
 446              return(0);
 447           }
 448 #endif
 449           mkdir(argv[2],0777);
 450           if (errno!=0){
 451              printf("ERROR: %s\n",rrd_strerror(errno));
 452           }
 453           return(0);
 454        }
 455        if (argc>1 && strcmp("ls", argv[1]) == 0){
 456           if (argc>2){
 457              printf("ERROR: invalid parameter count for ls\n");
 458              return(0);
 459           }
 460           if ((curdir=opendir("."))!=NULL){
 461              while((dent=readdir(curdir))!=NULL){
 462                 if (!stat(dent->d_name,&st)){
 463                    if (S_ISDIR(st.st_mode)){
 464                       printf("d %s\n",dent->d_name);
 465                    }
 466                    if (strlen(dent->d_name)>4 && S_ISREG(st.st_mode)){
 467                       if (!strcmp(dent->d_name+NAMLEN(dent)-4,".rrd") ||
 468                           !strcmp(dent->d_name+NAMLEN(dent)-4,".RRD")){
 469                          printf("- %s\n",dent->d_name);
 470                       }
 471                    }
 472                 }
 473              }
 474           }
 475           else{
 476              printf("ERROR: %s\n",rrd_strerror(errno));
 477              return(errno);
 478           }
 479           return(0);
 480        }
 481 #endif /* opendir and readdir */
 482
 483     }
 484     if (argc < 3
 485         || strcmp("help", argv[1]) == 0
 486         || strcmp("--help", argv[1]) == 0
 487         || strcmp("-help", argv[1]) == 0
 488         || strcmp("-?", argv[1]) == 0
 489         || strcmp("-h", argv[1]) == 0 ) {
 490         PrintUsage("");
 491         return 0;
 492     }
 493
 494     if (strcmp("create", argv[1]) == 0)
 495         rrd_create(argc-1, &argv[1]);
 496     else if (strcmp("dump", argv[1]) == 0)
 497         rrd_dump(argc-1, &argv[1]);
 498     else if (strcmp("info", argv[1]) == 0
 499                 || strcmp("updatev", argv[1]) == 0){
 500         info_t *data,*save;
 501         if (strcmp("info",argv[1]) == 0)
 502            data=rrd_info(argc-1, &argv[1]);
 503     else
 504            data=rrd_update_v(argc-1, &argv[1]);
 505         while (data) {
 506             save=data;
 507             printf ("%s = ", data->key);
 508             free(data->key);
 509
 510             switch (data->type) {
 511             case RD_I_VAL:
 512                 if (isnan (data->value.u_val))
 513                     printf("NaN");
 514                 else
 515                     printf ("%0.10e", data->value.u_val);
 516                 break;
 517             case RD_I_CNT:
 518                 printf ("%lu", data->value.u_cnt);
 519                 break;
 520             case RD_I_INT:
 521                 printf ("%d", data->value.u_int);
 522                 break;
 523             case RD_I_STR:
 524                 printf ("\"%s\"", data->value.u_str);
 525                 free(data->value.u_str);
 526                 break;
 527             }
 528             data = data->next;
 529             free(save);
 530             printf ("\n");
 531         }
 532         free(data);
 533     }
 534
 535     else if (strcmp("--version", argv[1]) == 0 ||
 536              strcmp("version", argv[1]) == 0 ||
 537              strcmp("v", argv[1]) == 0 ||
 538              strcmp("-v", argv[1]) == 0  ||
 539              strcmp("-version", argv[1]) == 0  )
 540         printf("RRDtool 1.1.x  Copyright (C) 1997-2004 by Tobias Oetiker <tobi@oetiker.ch>\n");
 541     else if (strcmp("restore", argv[1]) == 0)
 542         rrd_restore(argc-1, &argv[1]);
 543     else if (strcmp("resize", argv[1]) == 0)
 544         rrd_resize(argc-1, &argv[1]);
 545     else if (strcmp("last", argv[1]) == 0)
 546         printf("%ld\n",rrd_last(argc-1, &argv[1]));
 547     else if (strcmp("update", argv[1]) == 0)
 548         rrd_update(argc-1, &argv[1]);
 549     else if (strcmp("fetch", argv[1]) == 0) {
 550         time_t        start,end, ti;
 551         unsigned long step, ds_cnt,i,ii;
 552         rrd_value_t   *data,*datai;
 553         char          **ds_namv;
 554         if (rrd_fetch(argc-1, &argv[1],&start,&end,&step,&ds_cnt,&ds_namv,&data) != -1) {
 555             datai=data;
 556             printf("           ");
 557             for (i = 0; i<ds_cnt;i++)
 558                 printf("%20s",ds_namv[i]);
 559             printf ("\n\n");
 560             for (ti = start+step; ti <= end; ti += step){
 561                 printf("%10lu:", ti);
 562                 for (ii = 0; ii < ds_cnt; ii++)
 563                     printf(" %0.10e", *(datai++));
 564                 printf("\n");
 565             }
 566             for (i=0;i<ds_cnt;i++)
 567                   free(ds_namv[i]);
 568             free(ds_namv);
 569             free (data);
 570         }
 571     } else if (strcmp("xport", argv[1]) == 0) {
 572         int xxsize;
 573         unsigned long int j = 0;
 574         time_t        start,end, ti;
 575         unsigned long step, col_cnt,row_cnt;
 576         rrd_value_t   *data,*ptr;
 577         char          **legend_v;
 578         if(rrd_xport(argc-1, &argv[1], &xxsize,&start,&end,&step,&col_cnt,&legend_v,&data) != -1) {
 579           row_cnt = (end-start)/step;
 580           ptr = data;
 581           printf("<?xml version=\"1.0\" encoding=\"%s\"?>\n\n", XML_ENCODING);
 582           printf("<%s>\n", ROOT_TAG);
 583           printf("  <%s>\n", META_TAG);
 584           printf("    <%s>%lu</%s>\n", META_START_TAG, start+step, META_START_TAG);
 585           printf("    <%s>%lu</%s>\n", META_STEP_TAG, step, META_STEP_TAG);
 586           printf("    <%s>%lu</%s>\n", META_END_TAG, end, META_END_TAG);
 587           printf("    <%s>%lu</%s>\n", META_ROWS_TAG, row_cnt, META_ROWS_TAG);
 588           printf("    <%s>%lu</%s>\n", META_COLS_TAG, col_cnt, META_COLS_TAG);
 589           printf("    <%s>\n", LEGEND_TAG);
 590           for (j = 0; j < col_cnt; j++) {
 591             char *entry = NULL;
 592             entry = legend_v[j];
 593             printf("      <%s>%s</%s>\n", LEGEND_ENTRY_TAG, entry, LEGEND_ENTRY_TAG);
 594             free(entry);
 595           }
 596           free(legend_v);
 597           printf("    </%s>\n", LEGEND_TAG);
 598           printf("  </%s>\n", META_TAG);
 599           printf("  <%s>\n", DATA_TAG);
 600           for (ti = start+step; ti <= end; ti += step) {
 601             printf ("    <%s>", DATA_ROW_TAG);
 602             printf ("<%s>%lu</%s>", COL_TIME_TAG, ti, COL_TIME_TAG);
 603             for (j = 0; j < col_cnt; j++) {
 604               rrd_value_t newval = DNAN;
 605               newval = *ptr;
 606               if(isnan(newval)){
 607                 printf("<%s>NaN</%s>", COL_DATA_TAG, COL_DATA_TAG);
 608               } else {
 609                 printf("<%s>%0.10e</%s>", COL_DATA_TAG, newval, COL_DATA_TAG);
 610               };
 611               ptr++;
 612             }
 613             printf("</%s>\n", DATA_ROW_TAG);
 614           }
 615           free(data);
 616           printf("  </%s>\n", DATA_TAG);
 617           printf("</%s>\n", ROOT_TAG);
 618         }
 619     }
 620     else if (strcmp("graph", argv[1]) == 0) {
 621         char **calcpr;
 622 #ifdef notused  /*XXX*/
 623         const char *imgfile = argv[2]; /* rrd_graph changes argv pointer */
 624 #endif
 625         int xsize, ysize;
 626         int i;
 627         int tostdout = (strcmp(argv[2],"-") == 0);
 628         if( rrd_graph(argc-1, &argv[1], &calcpr, &xsize, &ysize, NULL) != -1 ) {
 629             if (!tostdout)
 630                 printf ("%dx%d\n",xsize,ysize);
 631             if (calcpr) {
 632                 for(i=0;calcpr[i];i++){
 633                     if (!tostdout)
 634                         printf("%s\n",calcpr[i]);
 635                     free(calcpr[i]);
 636                 }
 637                 free(calcpr);
 638             }
 639         }
 640
 641     } else if (strcmp("tune", argv[1]) == 0)
 642                 rrd_tune(argc-1, &argv[1]);
 643     else {
 644                 rrd_set_error("unknown function '%s'",argv[1]);
 645     }
 646     if (rrd_test_error()) {
 647         fprintf(out, "ERROR: %s\n",rrd_get_error());
 648         rrd_clear_error();
 649         return 1;
 650     }
 651     return(0);
 652 }
 653
 654 int CountArgs(char *aLine)
 655 {
 656     int i=0;
 657     int aCount = 0;
 658     int inarg = 0;
 659     while (aLine[i] == ' ') i++;
 660     while (aLine[i] != 0){
 661         if((aLine[i]== ' ') && inarg){
 662             inarg = 0;
 663         }
 664         if((aLine[i]!= ' ') && ! inarg){
 665             inarg = 1;
 666             aCount++;
 667         }
 668         i++;
 669     }
 670     return aCount;
 671 }
 672
 673 /*
 674  * CreateArgs - take a string (aLine) and tokenize
 675  */
 676 int CreateArgs(char *pName, char *aLine, int argc, char **argv)
 677 {
 678     char        *getP, *putP;
 679     char        **pargv = argv;
 680     char        Quote = 0;
 681     int inArg = 0;
 682     int len;
 683
 684     len = strlen(aLine);
 685     /* remove trailing space and newlines */
 686     while (len && aLine[len] <= ' ') {
 687         aLine[len] = 0 ; len--;
 688     }
 689     /* sikp leading blanks */
 690     while (*aLine && *aLine <= ' ') aLine++;
 691
 692     pargv[0] = pName;
 693     argc = 1;
 694     getP = aLine;
 695     putP = aLine;
 696     while (*getP){
 697         switch (*getP) {
 698         case ' ':
 699             if (Quote){
 700                 *(putP++)=*getP;
 701             } else
 702                 if(inArg) {
 703                     *(putP++) = 0;
 704                     inArg = 0;
 705                 }
 706             break;
 707         case '"':
 708         case '\'':
 709             if (Quote != 0) {
 710                 if (Quote == *getP)
 711                     Quote = 0;
 712                 else {
 713                     *(putP++)=*getP;
 714                 }
 715             } else {
 716                 if(!inArg){
 717                     pargv[argc++] = putP;
 718                     inArg=1;
 719                 }
 720                 Quote = *getP;
 721             }
 722             break;
 723         default:
 724             if(!inArg){
 725                 pargv[argc++] = putP;
 726                 inArg=1;
 727             }
 728             *(putP++)=*getP;
 729             break;
 730         }
 731         getP++;
 732     }
 733
 734     *putP = '\0';
 735
 736     if (Quote)
 737         return -1;
 738     else
 739         return argc;
 740 }
 741
 742