src/rrd_tool.c

   1 /*****************************************************************************
   2  * RRDtool 1.2.28  Copyright by Tobi Oetiker, 1997-2008
   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 1997-2008 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, lastupdate, first, info, fetch, tune,\n"
  32            "\t\tresize, xport\n\n";
  33
  34     char help_listremote[] =
  35            "Valid remote commands: quit, ls, cd, mkdir, pwd\n\n";
  36
  37
  38     char help_create[] =
  39            "* create - create a new RRD\n\n"
  40            "\trrdtool create filename [--start|-b start time]\n"
  41            "\t\t[--step|-s step]\n"
  42            "\t\t[DS:ds-name:DST:dst arguments]\n"
  43            "\t\t[RRA:CF:cf arguments]\n\n";
  44
  45     char help_dump[] =
  46            "* dump - dump an RRD to XML\n\n"
  47            "\trrdtool dump filename.rrd >filename.xml\n\n";
  48
  49     char help_info[] =
  50            "* info - returns the configuration and status of the RRD\n\n"
  51            "\trrdtool info filename.rrd\n\n";
  52
  53     char help_restore[] =
  54            "* restore - restore an RRD file from its XML form\n\n"
  55            "\trrdtool restore [--range-check|-r] [--force-overwrite|-f] filename.xml filename.rrd\n\n";
  56
  57     char help_last[] =
  58            "* last - show last update time for RRD\n\n"
  59            "\trrdtool last filename.rrd\n\n";
  60
  61     char help_lastupdate[] =
  62           "* lastupdate - returns the most recent datum stored for\n"
  63           "  each DS in an RRD\n\n"
  64           "\trrdtool lastupdate filename.rrd\n\n";
  65
  66     char help_first[] =
  67            "* first - show first update time for RRA within an RRD\n\n"
  68            "\trrdtool first filename.rrd [--rraindex number]\n\n";
  69
  70     char help_update[] =
  71            "* update - update an RRD\n\n"
  72            "\trrdtool update filename\n"
  73            "\t\t--template|-t ds-name:ds-name:...\n"
  74            "\t\ttime|N:value[:value...]\n\n"
  75            "\t\tat-time@value[:value...]\n\n"
  76            "\t\t[ time:value[:value...] ..]\n\n";
  77
  78         char help_updatev[] =
  79            "* updatev - a verbose version of update\n"
  80            "\treturns information about values, RRAs, and datasources updated\n\n"
  81            "\trrdtool updatev filename\n"
  82            "\t\t--template|-t ds-name:ds-name:...\n"
  83            "\t\ttime|N:value[:value...]\n\n"
  84            "\t\tat-time@value[:value...]\n\n"
  85            "\t\t[ time:value[:value...] ..]\n\n";
  86
  87     char help_fetch[] =
  88            "* fetch - fetch data out of an RRD\n\n"
  89            "\trrdtool fetch filename.rrd CF\n"
  90            "\t\t[-r|--resolution resolution]\n"
  91            "\t\t[-s|--start start] [-e|--end end]\n\n";
  92
  93 /* break up very large strings (help_graph, help_tune) for ISO C89 compliance*/
  94
  95     char help_graph1[] =
  96            "* graph - generate a graph from one or several RRD\n\n"
  97            "\trrdtool graph filename [-s|--start seconds] [-e|--end seconds]\n"
  98            "\t\t[-x|--x-grid x-axis grid and label]\n"
  99            "\t\t[-Y|--alt-y-grid]\n"
 100            "\t\t[-y|--y-grid y-axis grid and label]\n"
 101            "\t\t[-v|--vertical-label string] [-w|--width pixels]\n"
 102            "\t\t[--right-axis scale:shift] [--right-axis-label label]\n"
 103            "\t\t[-h|--height pixels] [-o|--logarithmic]\n"
 104            "\t\t[-u|--upper-limit value] [-z|--lazy]\n"
 105            "\t\t[-l|--lower-limit value] [-r|--rigid]\n"
 106            "\t\t[-g|--no-legend]\n"
 107            "\t\t[-F|--force-rules-legend]\n"
 108            "\t\t[-j|--only-graph]\n";
 109     char help_graph2[] =
 110            "\t\t[-n|--font FONTTAG:size:font]\n"
 111            "\t\t[-m|--zoom factor]\n"
 112            "\t\t[-A|--alt-autoscale]\n"
 113            "\t\t[-M|--alt-autoscale-max]\n"
 114            "\t\t[-R|--font-render-mode {normal,light,mono}]\n"
 115            "\t\t[-B|--font-smoothing-threshold size]\n"
 116            "\t\t[-E|--slope-mode]\n"
 117            "\t\t[-N|--no-gridfit]\n"
 118            "\t\t[-X|--units-exponent value]\n"
 119            "\t\t[-L|--units-length value]\n"
 120            "\t\t[-S|--step seconds]\n"
 121            "\t\t[-f|--imginfo printfstr]\n"
 122            "\t\t[-a|--imgformat PNG]\n"
 123            "\t\t[-c|--color COLORTAG#rrggbb[aa]] [-t|--title string]\n"
 124            "\t\t[-W|--watermark string]\n"
 125            "\t\t[DEF:vname=rrd:ds-name:CF]\n";
 126     char help_graph3[] =
 127            "\t\t[CDEF:vname=rpn-expression]\n"
 128            "\t\t[VDEF:vdefname=rpn-expression]\n"
 129            "\t\t[PRINT:vdefname:format]\n"
 130            "\t\t[GPRINT:vdefname:format]\n"
 131            "\t\t[COMMENT:text]\n"
 132            "\t\t[SHIFT:vname:offset]\n"
 133            "\t\t[TICK:vname#rrggbb[aa][:[fraction][:legend]]]\n"
 134            "\t\t[HRULE:value#rrggbb[aa][:legend]]\n"
 135            "\t\t[VRULE:value#rrggbb[aa][:legend]]\n"
 136            "\t\t[LINE[width]:vname[#rrggbb[aa][:[legend][:STACK]]]]\n"
 137            "\t\t[AREA:vname[#rrggbb[aa][:[legend][:STACK]]]]\n"
 138            "\t\t[PRINT:vname:CF:format] (deprecated)\n"
 139            "\t\t[GPRINT:vname:CF:format] (deprecated)\n"
 140            "\t\t[STACK:vname[#rrggbb[aa][:legend]]] (deprecated)\n\n";
 141
 142     char help_tune1[] =
 143            " * tune -  Modify some basic properties of an RRD\n\n"
 144            "\trrdtool tune filename\n"
 145            "\t\t[--heartbeat|-h ds-name:heartbeat]\n"
 146            "\t\t[--data-source-type|-d ds-name:DST]\n"
 147            "\t\t[--data-source-rename|-r old-name:new-name]\n"
 148            "\t\t[--minimum|-i ds-name:min] [--maximum|-a ds-name:max]\n"
 149            "\t\t[--deltapos scale-value] [--deltaneg scale-value]\n"
 150            "\t\t[--failure-threshold integer]\n"
 151            "\t\t[--window-length integer]\n"
 152            "\t\t[--alpha adaptation-parameter]\n";
 153     char help_tune2[] =
 154            " * tune -  Modify some basic properties of an RRD\n\n"
 155            "\t\t[--beta adaptation-parameter]\n"
 156            "\t\t[--gamma adaptation-parameter]\n"
 157            "\t\t[--gamma-deviation adaptation-parameter]\n"
 158            "\t\t[--aberrant-reset ds-name]\n\n";
 159
 160     char help_resize[] =
 161            " * resize - alter the length of one of the RRAs in an RRD\n\n"
 162            "\trrdtool resize filename rranum GROW|SHRINK rows\n\n";
 163
 164     char help_xport[] =
 165            "* xport - generate XML dump from one or several RRD\n\n"
 166            "\trrdtool xport [-s|--start seconds] [-e|--end seconds]\n"
 167            "\t\t[-m|--maxrows rows]\n"
 168            "\t\t[--step seconds]\n"
 169            "\t\t[--enumds]\n"
 170            "\t\t[DEF:vname=rrd:ds-name:CF]\n"
 171            "\t\t[CDEF:vname=rpn-expression]\n"
 172            "\t\t[XPORT:vname:legend]\n\n";
 173
 174     char help_quit[] =
 175            " * quit - closing a session in remote mode\n\n"
 176            "\trrdtool quit\n\n";
 177
 178     char help_ls[] =
 179            " * ls - lists all *.rrd files in current directory\n\n"
 180            "\trrdtool ls\n\n";
 181
 182     char help_cd[] =
 183            " * cd - changes the current directory\n\n"
 184            "\trrdtool cd new directory\n\n";
 185
 186     char help_mkdir[] =
 187            " * mkdir - creates a new directory\n\n"
 188            "\trrdtool mkdir newdirectoryname\n\n";
 189
 190     char help_pwd[] =
 191            " * pwd - returns the current working directory\n\n"
 192            "\trrdtool pwd\n\n";
 193
 194     char help_lic[] =
 195            "RRDtool is distributed under the Terms of the GNU General\n"
 196            "Public License Version 2. (www.gnu.org/copyleft/gpl.html)\n\n"
 197
 198            "For more information read the RRD manpages\n\n";
 199
 200     enum { C_NONE, C_CREATE, C_DUMP, C_INFO, C_RESTORE, C_LAST,
 201            C_LASTUPDATE, C_FIRST, C_UPDATE, C_FETCH, C_GRAPH, C_TUNE,
 202            C_RESIZE, C_XPORT, C_QUIT, C_LS, C_CD, C_MKDIR, C_PWD,
 203            C_UPDATEV };
 204
 205     int help_cmd = C_NONE;
 206
 207     if (cmd)
 208         {
 209             if (!strcmp(cmd,"create"))
 210                 help_cmd = C_CREATE;
 211             else if (!strcmp(cmd,"dump"))
 212                 help_cmd = C_DUMP;
 213             else if (!strcmp(cmd,"info"))
 214                 help_cmd = C_INFO;
 215             else if (!strcmp(cmd,"restore"))
 216                 help_cmd = C_RESTORE;
 217             else if (!strcmp(cmd,"last"))
 218                 help_cmd = C_LAST;
 219             else if (!strcmp(cmd,"lastupdate"))
 220                 help_cmd = C_LASTUPDATE;
 221             else if (!strcmp(cmd,"first"))
 222                 help_cmd = C_FIRST;
 223             else if (!strcmp(cmd,"update"))
 224                 help_cmd = C_UPDATE;
 225             else if (!strcmp(cmd,"updatev"))
 226                 help_cmd = C_UPDATEV;
 227             else if (!strcmp(cmd,"fetch"))
 228                 help_cmd = C_FETCH;
 229             else if (!strcmp(cmd,"graph"))
 230                 help_cmd = C_GRAPH;
 231             else if (!strcmp(cmd,"tune"))
 232                 help_cmd = C_TUNE;
 233             else if (!strcmp(cmd,"resize"))
 234                 help_cmd = C_RESIZE;
 235             else if (!strcmp(cmd,"xport"))
 236                 help_cmd = C_XPORT;
 237             else if (!strcmp(cmd,"quit"))
 238                 help_cmd = C_QUIT;
 239             else if (!strcmp(cmd,"ls"))
 240                 help_cmd = C_LS;
 241             else if (!strcmp(cmd,"cd"))
 242                 help_cmd = C_CD;
 243             else if (!strcmp(cmd,"mkdir"))
 244                 help_cmd = C_MKDIR;
 245             else if (!strcmp(cmd,"pwd"))
 246                 help_cmd = C_PWD;
 247         }
 248     fputs(help_main, stdout);
 249     switch (help_cmd)
 250         {
 251             case C_NONE:
 252                 fputs(help_list, stdout);
 253                 if (RemoteMode){
 254                    fputs(help_listremote, stdout);
 255                 }
 256                 break;
 257             case C_CREATE:
 258                 fputs(help_create, stdout);
 259                 break;
 260             case C_DUMP:
 261                 fputs(help_dump, stdout);
 262                 break;
 263             case C_INFO:
 264                 fputs(help_info, stdout);
 265                 break;
 266             case C_RESTORE:
 267                 fputs(help_restore, stdout);
 268                 break;
 269             case C_LAST:
 270                 fputs(help_last, stdout);
 271                 break;
 272             case C_LASTUPDATE:
 273                 fputs(help_lastupdate, stdout);
 274                 break;
 275             case C_FIRST:
 276                 fputs(help_first, stdout);
 277                 break;
 278             case C_UPDATE:
 279                 fputs(help_update, stdout);
 280                 break;
 281             case C_UPDATEV:
 282                 fputs(help_updatev, stdout);
 283                 break;
 284             case C_FETCH:
 285                 fputs(help_fetch, stdout);
 286                 break;
 287             case C_GRAPH:
 288                 fputs(help_graph1, stdout);
 289                 fputs(help_graph2, stdout);
 290                 fputs(help_graph3, stdout);
 291                 break;
 292             case C_TUNE:
 293                 fputs(help_tune1, stdout);
 294                 fputs(help_tune2, stdout);
 295                 break;
 296             case C_RESIZE:
 297                 fputs(help_resize, stdout);
 298                 break;
 299             case C_XPORT:
 300                 fputs(help_xport, stdout);
 301                 break;
 302             case C_QUIT:
 303                 fputs(help_quit, stdout);
 304                 break;
 305             case C_LS:
 306                 fputs(help_ls, stdout);
 307                 break;
 308             case C_CD:
 309                 fputs(help_cd, stdout);
 310                 break;
 311             case C_MKDIR:
 312                 fputs(help_mkdir, stdout);
 313                 break;
 314             case C_PWD:
 315                 fputs(help_pwd, stdout);
 316                 break;
 317         }
 318     fputs(help_lic, stdout);
 319 }
 320
 321 static char *fgetslong(char **aLinePtr, FILE *stream)
 322 {
 323    char *linebuf;
 324    size_t bufsize = MAX_LENGTH;
 325    int eolpos = 0;
 326
 327    if (feof(stream)) return *aLinePtr = 0;
 328    if (!(linebuf = malloc(bufsize))) {
 329       perror("fgetslong: malloc");
 330       exit(1);
 331    }
 332    linebuf[0] = '\0';
 333    while (fgets(linebuf + eolpos, MAX_LENGTH, stream)) {
 334       eolpos += strlen(linebuf + eolpos);
 335       if (linebuf[eolpos - 1] == '\n') return *aLinePtr = linebuf;
 336       bufsize += MAX_LENGTH;
 337       if (!(linebuf = realloc(linebuf, bufsize))) {
 338          perror("fgetslong: realloc");
 339          exit(1);
 340       }
 341    }
 342    return *aLinePtr = linebuf[0] ? linebuf : 0;
 343 }
 344
 345 int main(int argc, char *argv[])
 346 {
 347     char **myargv;
 348     char *aLine;
 349     char *firstdir="";
 350 #ifdef MUST_DISABLE_SIGFPE
 351     signal(SIGFPE,SIG_IGN);
 352 #endif
 353 #ifdef MUST_DISABLE_FPMASK
 354     fpsetmask(0);
 355 #endif
 356     if (argc == 1)
 357         {
 358             PrintUsage("");
 359             return 0;
 360         }
 361
 362     if (((argc == 2)||(argc == 3)) && !strcmp("-",argv[1]))
 363         {
 364 #if HAVE_GETRUSAGE
 365           struct rusage  myusage;
 366           struct timeval starttime;
 367           struct timeval currenttime;
 368
 369           gettimeofday(&starttime, NULL);
 370 #endif
 371           RemoteMode=1;
 372           if ((argc == 3) && strcmp("",argv[2])){
 373
 374              if (
 375 #ifdef HAVE_GETUID
 376                  getuid()
 377 #else
 378                  1
 379 #endif
 380                  == 0 ){
 381
 382 #ifdef HAVE_CHROOT
 383                 if (chroot(argv[2]) != 0){
 384                    fprintf(stderr,"ERROR: can't change root to '%s' errno=%d\n",
 385                            argv[2],errno);
 386                     exit(errno);
 387                 }
 388                 ChangeRoot=1;
 389                 firstdir="/";
 390 #else
 391                 fprintf(stderr,"ERROR: change root is not supported by your OS "
 392                          "or at least by this copy of rrdtool\n");
 393                 exit(1);
 394 #endif
 395              } else {
 396                 firstdir=argv[2];
 397              }
 398           }
 399           if (strcmp(firstdir,"")){
 400              if (chdir(firstdir)!=0){
 401                 fprintf(stderr,"ERROR: %s\n",rrd_strerror(errno));
 402                 exit(errno);
 403              }
 404           }
 405
 406             while (fgetslong(&aLine, stdin)){
 407                 if ((argc = CountArgs(aLine)) == 0)  {
 408                     printf("ERROR: not enough arguments\n");
 409                 }
 410                 if ((myargv = (char **) malloc((argc+1) *
 411                                                sizeof(char *))) == NULL)   {
 412                     perror("malloc");
 413                     exit(1);
 414                 }
 415                 if ((argc=CreateArgs(argv[0], aLine, argc, myargv)) < 0) {
 416                     printf("ERROR: creating arguments\n");
 417                 } else {
 418                     int ret = HandleInputLine(argc, myargv, stdout);
 419                     free(myargv);
 420                     if (ret == 0){
 421
 422
 423 #if HAVE_GETRUSAGE
 424                      getrusage(RUSAGE_SELF,&myusage);
 425                      gettimeofday(&currenttime,NULL);
 426                      printf("OK u:%1.2f s:%1.2f r:%1.2f\n",
 427                        (double)myusage.ru_utime.tv_sec+
 428                        (double)myusage.ru_utime.tv_usec/1000000.0,
 429                        (double)myusage.ru_stime.tv_sec+
 430                        (double)myusage.ru_stime.tv_usec/1000000.0,
 431                        (double)(currenttime.tv_sec-starttime.tv_sec)
 432                        +(double)(currenttime.tv_usec-starttime.tv_usec)
 433                        /1000000.0);
 434 #else
 435                       printf("OK\n");
 436
 437 #endif
 438                   }
 439                 }
 440                 fflush(stdout); /* this is important for pipes to work */
 441                 free(aLine);
 442             }
 443         }
 444     else if (argc == 2)
 445         {
 446                 PrintUsage(argv[1]);
 447                 exit(0);
 448         }
 449     else if (argc == 3 && !strcmp(argv[1],"help"))
 450         {
 451                 PrintUsage(argv[2]);
 452                 exit(0);
 453         }
 454     else {
 455         exit(HandleInputLine(argc, argv, stderr));
 456     }
 457     return 0;
 458 }
 459
 460 /* HandleInputLine is NOT thread safe - due to readdir issues,
 461    resolving them portably is not really simple. */
 462 int HandleInputLine(int argc, char **argv, FILE* out)
 463 {
 464 #if defined(HAVE_OPENDIR) && defined (HAVE_READDIR)
 465     DIR           *curdir; /* to read current dir with ls */
 466     struct dirent *dent;
 467 #endif
 468 #if defined(HAVE_SYS_STAT_H)
 469     struct stat   st;
 470 #endif
 471     char* cwd; /* To hold current working dir on call to pwd */
 472
 473     /* Reset errno to 0 before we start.
 474     */
 475     errno = 0;
 476
 477     if (RemoteMode){
 478        if (argc>1 && strcmp("quit", argv[1]) == 0){
 479           if (argc>2){
 480              printf("ERROR: invalid parameter count for quit\n");
 481              return(1);
 482           }
 483           exit(0);
 484        }
 485 #if defined(HAVE_OPENDIR) && defined(HAVE_READDIR) && defined(HAVE_CHDIR)
 486        if (argc>1 && strcmp("cd", argv[1]) == 0){
 487           if (argc>3){
 488              printf("ERROR: invalid parameter count for cd\n");
 489              return(1);
 490           }
 491 #if ! defined(HAVE_CHROOT) || ! defined(HAVE_GETUID)
 492           if (getuid()==0 && ! ChangeRoot){
 493              printf("ERROR: chdir security problem - rrdtool is running as "
 494                     "root but not chroot!\n");
 495              return(1);
 496           }
 497 #endif
 498           if (chdir(argv[2]) != 0){
 499              printf("ERROR: %s\n",rrd_strerror(errno));
 500              return(1);
 501           }
 502           return(0);
 503        }
 504        if (argc>1 && strcmp("pwd", argv[1]) == 0){
 505           if (argc>2){
 506              printf("ERROR: invalid parameter count for pwd\n");
 507              return(1);
 508           }
 509           cwd = getcwd(NULL, MAXPATH);
 510           if(cwd == NULL) {
 511              printf("ERROR: %s\n",rrd_strerror(errno));
 512              return(1);
 513           }
 514           printf("%s\n", cwd);
 515           free(cwd);
 516           return(0);
 517        }
 518        if (argc>1 && strcmp("mkdir", argv[1]) == 0){
 519           if (argc>3){
 520              printf("ERROR: invalid parameter count for mkdir\n");
 521              return(1);
 522           }
 523 #if ! defined(HAVE_CHROOT) || ! defined(HAVE_GETUID)
 524           if (getuid()==0 && ! ChangeRoot){
 525              printf("ERROR: mkdir security problem - rrdtool is running as "
 526                     "root but not chroot!\n");
 527              return(1);
 528           }
 529 #endif
 530           if (mkdir(argv[2],0777) != 0){
 531              printf("ERROR: %s\n",rrd_strerror(errno));
 532              return(1);
 533           }
 534           return(0);
 535        }
 536        if (argc>1 && strcmp("ls", argv[1]) == 0){
 537           if (argc>2){
 538              printf("ERROR: invalid parameter count for ls\n");
 539              return(1);
 540           }
 541           if ((curdir=opendir("."))!=NULL){
 542              while((dent=readdir(curdir))!=NULL){
 543                 if (!stat(dent->d_name,&st)){
 544                    if (S_ISDIR(st.st_mode)){
 545                       printf("d %s\n",dent->d_name);
 546                    }
 547                    if (strlen(dent->d_name)>4 && S_ISREG(st.st_mode)){
 548                       if (!strcmp(dent->d_name+NAMLEN(dent)-4,".rrd") ||
 549                           !strcmp(dent->d_name+NAMLEN(dent)-4,".RRD")){
 550                          printf("- %s\n",dent->d_name);
 551                       }
 552                    }
 553                 }
 554              }
 555              closedir(curdir);
 556           }
 557           else{
 558              printf("ERROR: %s\n",rrd_strerror(errno));
 559              return(errno);
 560           }
 561           return(0);
 562        }
 563 #endif /* opendir and readdir */
 564
 565     }
 566     if (argc < 3
 567         || strcmp("help", argv[1]) == 0
 568         || strcmp("--help", argv[1]) == 0
 569         || strcmp("-help", argv[1]) == 0
 570         || strcmp("-?", argv[1]) == 0
 571         || strcmp("-h", argv[1]) == 0 ) {
 572         PrintUsage("");
 573         return 0;
 574     }
 575
 576     if (strcmp("create", argv[1]) == 0)
 577         rrd_create(argc-1, &argv[1]);
 578     else if (strcmp("dump", argv[1]) == 0)
 579         rrd_dump(argc-1, &argv[1]);
 580     else if (strcmp("info", argv[1]) == 0
 581                 || strcmp("updatev", argv[1]) == 0){
 582         info_t *data,*save;
 583         if (strcmp("info",argv[1]) == 0)
 584            data=rrd_info(argc-1, &argv[1]);
 585     else
 586            data=rrd_update_v(argc-1, &argv[1]);
 587         while (data) {
 588             save=data;
 589             printf ("%s = ", data->key);
 590             free(data->key);
 591
 592             switch (data->type) {
 593             case RD_I_VAL:
 594                 if (isnan (data->value.u_val))
 595                     printf("NaN");
 596                 else
 597                     printf ("%0.10e", data->value.u_val);
 598                 break;
 599             case RD_I_CNT:
 600                 printf ("%lu", data->value.u_cnt);
 601                 break;
 602             case RD_I_INT:
 603                 printf ("%d", data->value.u_int);
 604                 break;
 605             case RD_I_STR:
 606                 printf ("\"%s\"", data->value.u_str);
 607                 free(data->value.u_str);
 608                 break;
 609             }
 610             data = data->next;
 611             free(save);
 612             printf ("\n");
 613         }
 614         free(data);
 615     }
 616
 617     else if (strcmp("--version", argv[1]) == 0 ||
 618              strcmp("version", argv[1]) == 0 ||
 619              strcmp("v", argv[1]) == 0 ||
 620              strcmp("-v", argv[1]) == 0  ||
 621              strcmp("-version", argv[1]) == 0  )
 622         printf("RRDtool " PACKAGE_VERSION "  Copyright by Tobi Oetiker, 1997-2005 (%f)\n",
 623                rrd_version());
 624     else if (strcmp("restore", argv[1]) == 0)
 625         rrd_restore(argc-1, &argv[1]);
 626     else if (strcmp("resize", argv[1]) == 0)
 627         rrd_resize(argc-1, &argv[1]);
 628     else if (strcmp("last", argv[1]) == 0)
 629         printf("%ld\n",rrd_last(argc-1, &argv[1]));
 630     else if (strcmp("lastupdate", argv[1]) == 0) {
 631            time_t      last_update;
 632            char        **ds_namv;
 633            char        **last_ds;
 634            unsigned long ds_cnt,
 635                        i;
 636           if (rrd_lastupdate(argc-1, &argv[1], &last_update,
 637                        &ds_cnt, &ds_namv, &last_ds) == 0) {
 638                for (i=0; i<ds_cnt; i++)
 639                        printf(" %s", ds_namv[i]);
 640                printf("\n\n");
 641                printf("%10lu:", last_update);
 642                for (i=0; i<ds_cnt; i++) {
 643                        printf(" %s", last_ds[i]);
 644                        free(last_ds[i]);
 645                        free(ds_namv[i]);
 646                }
 647                printf("\n");
 648                free(last_ds);
 649                free(ds_namv);
 650           }
 651     } else if (strcmp("first", argv[1]) == 0)
 652         printf("%ld\n",rrd_first(argc-1, &argv[1]));
 653     else if (strcmp("update", argv[1]) == 0)
 654         rrd_update(argc-1, &argv[1]);
 655     else if (strcmp("fetch", argv[1]) == 0) {
 656         time_t        start,end, ti;
 657         unsigned long step, ds_cnt,i,ii;
 658         rrd_value_t   *data,*datai;
 659         char          **ds_namv;
 660         if (rrd_fetch(argc-1, &argv[1],&start,&end,&step,&ds_cnt,&ds_namv,&data) != -1) {
 661             datai=data;
 662             printf("           ");
 663             for (i = 0; i<ds_cnt;i++)
 664                 printf("%20s",ds_namv[i]);
 665             printf ("\n\n");
 666             for (ti = start+step; ti <= end; ti += step){
 667                 printf("%10lu:", ti);
 668                 for (ii = 0; ii < ds_cnt; ii++)
 669                     printf(" %0.10e", *(datai++));
 670                 printf("\n");
 671             }
 672             for (i=0;i<ds_cnt;i++)
 673                   free(ds_namv[i]);
 674             free(ds_namv);
 675             free (data);
 676         }
 677     } else if (strcmp("xport", argv[1]) == 0) {
 678         int xxsize;
 679         unsigned long int j = 0;
 680         time_t        start,end, ti;
 681         unsigned long step, col_cnt,row_cnt;
 682         rrd_value_t   *data,*ptr;
 683         char          **legend_v;
 684         int           enumds = 0;
 685         int           i;
 686         size_t       vtag_s = strlen(COL_DATA_TAG) + 10;
 687         char         *vtag = malloc(vtag_s);
 688         for ( i = 2; i < argc; i++){
 689                 if (strcmp("--enumds", argv[i]) == 0)
 690                         enumds = 1;
 691         }
 692
 693         if(rrd_xport(argc-1, &argv[1], &xxsize,&start,&end,&step,&col_cnt,&legend_v,&data) != -1) {
 694           row_cnt = (end-start)/step;
 695           ptr = data;
 696           printf("<?xml version=\"1.0\" encoding=\"%s\"?>\n\n", XML_ENCODING);
 697           printf("<%s>\n", ROOT_TAG);
 698           printf("  <%s>\n", META_TAG);
 699           printf("    <%s>%lu</%s>\n", META_START_TAG, start+step, META_START_TAG);
 700           printf("    <%s>%lu</%s>\n", META_STEP_TAG, step, META_STEP_TAG);
 701           printf("    <%s>%lu</%s>\n", META_END_TAG, end, META_END_TAG);
 702           printf("    <%s>%lu</%s>\n", META_ROWS_TAG, row_cnt, META_ROWS_TAG);
 703           printf("    <%s>%lu</%s>\n", META_COLS_TAG, col_cnt, META_COLS_TAG);
 704           printf("    <%s>\n", LEGEND_TAG);
 705           for (j = 0; j < col_cnt; j++) {
 706             char *entry = NULL;
 707             entry = legend_v[j];
 708             printf("      <%s>%s</%s>\n", LEGEND_ENTRY_TAG, entry, LEGEND_ENTRY_TAG);
 709             free(entry);
 710           }
 711           free(legend_v);
 712           printf("    </%s>\n", LEGEND_TAG);
 713           printf("  </%s>\n", META_TAG);
 714           printf("  <%s>\n", DATA_TAG);
 715           for (ti = start+step; ti <= end; ti += step) {
 716             printf ("    <%s>", DATA_ROW_TAG);
 717             printf ("<%s>%lu</%s>", COL_TIME_TAG, ti, COL_TIME_TAG);
 718             for (j = 0; j < col_cnt; j++) {
 719               rrd_value_t newval = DNAN;
 720               if (enumds == 1)
 721                 snprintf(vtag,vtag_s,"%s%lu", COL_DATA_TAG, j);
 722               else
 723                 snprintf(vtag,vtag_s,"%s",COL_DATA_TAG);
 724
 725               newval = *ptr;
 726               if(isnan(newval)){
 727                 printf("<%s>NaN</%s>", vtag,vtag);
 728               } else {
 729                 printf("<%s>%0.10e</%s>", vtag, newval, vtag);
 730               };
 731               ptr++;
 732             }
 733             printf("</%s>\n", DATA_ROW_TAG);
 734           }
 735           free(data);
 736           printf("  </%s>\n", DATA_TAG);
 737           printf("</%s>\n", ROOT_TAG);
 738         }
 739         free(vtag);
 740     }
 741     else if (strcmp("graph", argv[1]) == 0) {
 742         char **calcpr;
 743 #ifdef notused  /*XXX*/
 744         const char *imgfile = argv[2]; /* rrd_graph changes argv pointer */
 745 #endif
 746         int xsize, ysize;
 747         double ymin,ymax;
 748         int i;
 749         int tostdout = (strcmp(argv[2],"-") == 0);
 750         int imginfo = 0;
 751         for (i=2;i<argc;i++){
 752                 if (strcmp(argv[i],"--imginfo") == 0 || strcmp(argv[i],"-f") == 0){
 753                         imginfo = 1;
 754                         break;
 755                 }
 756         }
 757         if( rrd_graph(argc-1, &argv[1], &calcpr, &xsize, &ysize, NULL, &ymin, &ymax) != -1 ) {
 758             if (!tostdout && !imginfo)
 759                 printf ("%dx%d\n",xsize,ysize);
 760             if (calcpr) {
 761                 for(i=0;calcpr[i];i++){
 762                     if (!tostdout)
 763                         printf("%s\n",calcpr[i]);
 764                     free(calcpr[i]);
 765                 }
 766                 free(calcpr);
 767             }
 768         }
 769
 770     } else if (strcmp("tune", argv[1]) == 0)
 771                 rrd_tune(argc-1, &argv[1]);
 772     else {
 773                 rrd_set_error("unknown function '%s'",argv[1]);
 774     }
 775     if (rrd_test_error()) {
 776         fprintf(out, "ERROR: %s\n",rrd_get_error());
 777         rrd_clear_error();
 778         return 1;
 779     }
 780     return(0);
 781 }
 782
 783 int CountArgs(char *aLine)
 784 {
 785     int i=0;
 786     int aCount = 0;
 787     int inarg = 0;
 788     while (aLine[i] == ' ') i++;
 789     while (aLine[i] != 0){
 790         if((aLine[i]== ' ') && inarg){
 791             inarg = 0;
 792         }
 793         if((aLine[i]!= ' ') && ! inarg){
 794             inarg = 1;
 795             aCount++;
 796         }
 797         i++;
 798     }
 799     return aCount;
 800 }
 801
 802 /*
 803  * CreateArgs - take a string (aLine) and tokenize
 804  */
 805 int CreateArgs(char *pName, char *aLine, int argc, char **argv)
 806 {
 807     char        *getP, *putP;
 808     char        **pargv = argv;
 809     char        Quote = 0;
 810     int inArg = 0;
 811     int len;
 812
 813     len = strlen(aLine);
 814     /* remove trailing space and newlines */
 815     while (len && aLine[len] <= ' ') {
 816         aLine[len] = 0 ; len--;
 817     }
 818     /* sikp leading blanks */
 819     while (*aLine && *aLine <= ' ') aLine++;
 820
 821     pargv[0] = pName;
 822     argc = 1;
 823     getP = aLine;
 824     putP = aLine;
 825     while (*getP){
 826         switch (*getP) {
 827         case ' ':
 828             if (Quote){
 829                 *(putP++)=*getP;
 830             } else
 831                 if(inArg) {
 832                     *(putP++) = 0;
 833                     inArg = 0;
 834                 }
 835             break;
 836         case '"':
 837         case '\'':
 838             if (Quote != 0) {
 839                 if (Quote == *getP)
 840                     Quote = 0;
 841                 else {
 842                     *(putP++)=*getP;
 843                 }
 844             } else {
 845                 if(!inArg){
 846                     pargv[argc++] = putP;
 847                     inArg=1;
 848                 }
 849                 Quote = *getP;
 850             }
 851             break;
 852         default:
 853             if(!inArg){
 854                 pargv[argc++] = putP;
 855                 inArg=1;
 856             }
 857             *(putP++)=*getP;
 858             break;
 859         }
 860         getP++;
 861     }
 862
 863     *putP = '\0';
 864
 865     if (Quote)
 866         return -1;
 867     else
 868         return argc;
 869 }
 870
 871