src/rrd_tool.c

   1 /*****************************************************************************
   2  * RRDtool 1.1.x  Copyright Tobias Oetiker, 1997 - 2002
   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 1997-2003 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, 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] 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_fetch[] =
  73            "* fetch - fetch data out of an RRD\n\n"
  74            "\trrdtool fetch filename.rrd CF\n"
  75            "\t\t[--resolution|-r resolution]\n"
  76            "\t\t[--start|-s start] [--end|-e end]\n\n";
  77
  78     char help_graph[] =
  79            "* graph - generate a graph from one or several RRD\n\n"
  80            "\trrdtool graph filename [-s|--start seconds] [-e|--end seconds]\n"
  81            "\t\t[-x|--x-grid x-axis grid and label]\n"
  82            "\t\t[--alt-y-grid]\n"
  83            "\t\t[-y|--y-grid y-axis grid and label]\n"
  84            "\t\t[-v|--vertical-label string] [-w|--width pixels]\n"
  85            "\t\t[-h|--height pixels] [-o|--logarithmic]\n"
  86            "\t\t[-u|--upper-limit value] [-z|--lazy]\n"
  87            "\t\t[-l|--lower-limit value] [-r|--rigid]\n"
  88            "\t\t[-g|--no-legend]\n"
  89            "\t\t[--font FONTTAG:size:font]\n"
  90            "\t\t[--zoom factor]\n"
  91            "\t\t[--alt-autoscale]\n"
  92            "\t\t[--alt-autoscale-max]\n"
  93            "\t\t[--units-exponent value]\n"
  94            "\t\t[--step seconds]\n"
  95            "\t\t[-f|--imginfo printfstr]\n"
  96            "\t\t[-a|--imgformat PNG]\n"
  97            "\t\t[-c|--color COLORTAG#rrggbb[aa]] [-t|--title string]\n"
  98            "\t\t[DEF:vname=rrd:ds-name:CF]\n"
  99            "\t\t[CDEF:vname=rpn-expression]\n"
 100            "\t\t[PRINT:vname:CF:format]\n"
 101            "\t\t[GPRINT:vname:CF:format]\n"
 102            "\t\t[HRULE:value#rrggbb[aa][:legend]]\n"
 103            "\t\t[VRULE:value#rrggbb[aa][:legend]]\n"
 104            "\t\t[LINE{1|2|3}:vname[#rrggbb[aa][:legend]]]\n"
 105            "\t\t[AREA:vname[#rrggbb[aa][:legend]]]\n"
 106            "\t\t[STACK:vname[#rrggbb[aa][:legend]]]\n\n";
 107
 108     char help_tune[] =
 109            " * tune -  Modify some basic properties of an RRD\n\n"
 110            "\trrdtool tune filename\n"
 111            "\t\t[--heartbeat|-h ds-name:heartbeat]\n"
 112            "\t\t[--data-source-type|-d ds-name:DST]\n"
 113            "\t\t[--data-source-rename|-r old-name:new-name]\n"
 114            "\t\t[--minimum|-i ds-name:min] [--maximum|-a ds-name:max]\n"
 115            "\t\t[--deltapos scale-value] [--deltaneg scale-value]\n"
 116            "\t\t[--failure-threshold integer]\n"
 117            "\t\t[--window-length integer]\n"
 118            "\t\t[--alpha adaptation-parameter]\n"
 119            "\t\t[--beta adaptation-parameter]\n"
 120            "\t\t[--gamma adaptation-parameter]\n"
 121            "\t\t[--gamma-deviation adaptation-parameter]\n"
 122            "\t\t[--aberrant-reset ds-name]\n\n";
 123
 124     char help_resize[] =
 125            " * resize - alter the lenght of one of the RRAs in an RRD\n\n"
 126            "\trrdtool resize filename rranum GROW|SHRINK rows\n\n";
 127
 128     char help_xport[] =
 129            "* xport - generate XML dump from one or several RRD\n\n"
 130            "\trrdtool xport [-s|--start seconds] [-e|--end seconds]\n"
 131            "\t\t[-m|--maxrows rows]\n"
 132            "\t\t[--step seconds]\n"
 133            "\t\t[DEF:vname=rrd:ds-name:CF]\n"
 134            "\t\t[CDEF:vname=rpn-expression]\n"
 135            "\t\t[XPORT:vname:legend]\n\n";
 136
 137     char help_quit[] =
 138            " * quit - closeing a session in remote mode\n\n"
 139            "\trrdtool quit\n\n";
 140
 141     char help_ls[] =
 142            " * ls - lists all *.rrd files in current directory\n\n"
 143            "\trrdtool ls\n\n";
 144
 145     char help_cd[] =
 146            " * cd - changes the current directory\n\n"
 147            "\trrdtool cd new direcotry\n\n";
 148
 149     char help_mkdir[] =
 150            " * mkdir - creates a new direcotry\n\n"
 151            "\trrdtool mkdir newdirecotryname\n\n";
 152
 153     char help_lic[] =
 154            "RRDtool is distributed under the Terms of the GNU General\n"
 155            "Public License Version 2. (www.gnu.org/copyleft/gpl.html)\n\n"
 156
 157            "For more information read the RRD manpages\n\n";
 158
 159     enum { C_NONE, C_CREATE, C_DUMP, C_INFO, C_RESTORE, C_LAST,
 160            C_UPDATE, C_FETCH, C_GRAPH, C_TUNE, C_RESIZE, C_XPORT,
 161            C_QUIT, C_LS, C_CD, C_MKDIR };
 162
 163     int help_cmd = C_NONE;
 164
 165     if (cmd)
 166         {
 167             if (!strcmp(cmd,"create"))
 168                 help_cmd = C_CREATE;
 169             else if (!strcmp(cmd,"dump"))
 170                 help_cmd = C_DUMP;
 171             else if (!strcmp(cmd,"info"))
 172                 help_cmd = C_INFO;
 173             else if (!strcmp(cmd,"restore"))
 174                 help_cmd = C_RESTORE;
 175             else if (!strcmp(cmd,"last"))
 176                 help_cmd = C_LAST;
 177             else if (!strcmp(cmd,"update"))
 178                 help_cmd = C_UPDATE;
 179             else if (!strcmp(cmd,"fetch"))
 180                 help_cmd = C_FETCH;
 181             else if (!strcmp(cmd,"graph"))
 182                 help_cmd = C_GRAPH;
 183             else if (!strcmp(cmd,"tune"))
 184                 help_cmd = C_TUNE;
 185             else if (!strcmp(cmd,"resize"))
 186                 help_cmd = C_RESIZE;
 187             else if (!strcmp(cmd,"xport"))
 188                 help_cmd = C_XPORT;
 189             else if (!strcmp(cmd,"quit"))
 190                 help_cmd = C_QUIT;
 191             else if (!strcmp(cmd,"ls"))
 192                 help_cmd = C_LS;
 193             else if (!strcmp(cmd,"cd"))
 194                 help_cmd = C_CD;
 195             else if (!strcmp(cmd,"mkdir"))
 196                 help_cmd = C_MKDIR;
 197         }
 198     fputs(help_main, stdout);
 199     switch (help_cmd)
 200         {
 201             case C_NONE:
 202                 fputs(help_list, stdout);
 203                 if (RemoteMode){
 204                    fputs(help_listremote, stdout);
 205                 }
 206                 break;
 207             case C_CREATE:
 208                 fputs(help_create, stdout);
 209                 break;
 210             case C_DUMP:
 211                 fputs(help_dump, stdout);
 212                 break;
 213             case C_INFO:
 214                 fputs(help_info, stdout);
 215                 break;
 216             case C_RESTORE:
 217                 fputs(help_restore, stdout);
 218                 break;
 219             case C_LAST:
 220                 fputs(help_last, stdout);
 221                 break;
 222             case C_UPDATE:
 223                 fputs(help_update, stdout);
 224                 break;
 225             case C_FETCH:
 226                 fputs(help_fetch, stdout);
 227                 break;
 228             case C_GRAPH:
 229                 fputs(help_graph, stdout);
 230                 break;
 231             case C_TUNE:
 232                 fputs(help_tune, stdout);
 233                 break;
 234             case C_RESIZE:
 235                 fputs(help_resize, stdout);
 236                 break;
 237             case C_XPORT:
 238                 fputs(help_xport, stdout);
 239                 break;
 240             case C_QUIT:
 241                 fputs(help_quit, stdout);
 242                 break;
 243             case C_LS:
 244                 fputs(help_ls, stdout);
 245                 break;
 246             case C_CD:
 247                 fputs(help_cd, stdout);
 248                 break;
 249             case C_MKDIR:
 250                 fputs(help_mkdir, stdout);
 251                 break;
 252         }
 253     fputs(help_lic, stdout);
 254 }
 255
 256
 257 int main(int argc, char *argv[])
 258 {
 259     char **myargv;
 260     char aLine[MAX_LENGTH];
 261 #ifdef HAVE_CHROOT
 262     char *firstdir="";
 263 #endif
 264 #ifdef MUST_DISABLE_SIGFPE
 265     signal(SIGFPE,SIG_IGN);
 266 #endif
 267 #ifdef MUST_DISABLE_FPMASK
 268     fpsetmask(0);
 269 #endif
 270     if (argc == 1)
 271         {
 272             PrintUsage("");
 273             return 0;
 274         }
 275
 276     if (((argc == 2)||(argc == 3)) && !strcmp("-",argv[1]))
 277         {
 278 #if HAVE_GETRUSAGE
 279           struct rusage  myusage;
 280           struct timeval starttime;
 281           struct timeval currenttime;
 282           struct timezone tz;
 283
 284             tz.tz_minuteswest =0;
 285             tz.tz_dsttime=0;
 286             gettimeofday(&starttime,&tz);
 287 #endif
 288           RemoteMode=1;
 289 #ifdef HAVE_CHROOT
 290           if ((argc == 3) && strcmp("",argv[2])){
 291              if (getuid()==0){
 292                 chroot(argv[2]);
 293                 if (errno!=0){
 294                    fprintf(stderr,"ERROR: can't change root to '%s' errno=%d\n",
 295                            argv[2],errno);
 296                     exit(errno);
 297                 }
 298                 ChangeRoot=1;
 299                 firstdir="/";
 300              }
 301              else{
 302                 firstdir=argv[2];
 303              }
 304           }
 305           if (strcmp(firstdir,"")){
 306              chdir(firstdir);
 307              if (errno!=0){
 308                 fprintf(stderr,"ERROR: %s\n",strerror(errno));
 309                 exit(errno);
 310              }
 311           }
 312 #else
 313           fprintf(stderr,"ERROR: change root is not supported by your OS "
 314                          "or at least by this copy of rrdtool\n");
 315           exit(1);
 316 #endif
 317
 318             while (fgets(aLine, sizeof(aLine)-1, stdin)){
 319                 if ((argc = CountArgs(aLine)) == 0)  {
 320                     fprintf(stderr,"ERROR: not enough arguments\n");
 321                 }
 322                 if ((myargv = (char **) malloc((argc+1) *
 323                                                sizeof(char *))) == NULL)   {
 324                     perror("malloc");
 325                     return -1;
 326                 }
 327                 if ((argc=CreateArgs(argv[0], aLine, argc, myargv)) < 0) {
 328                     fprintf(stderr, "ERROR: creating arguments\n");
 329                     return -1;
 330                 }
 331
 332                 if (HandleInputLine(argc, myargv, stdout))
 333                     return -1;
 334                 free(myargv);
 335
 336 #if HAVE_GETRUSAGE
 337                 getrusage(RUSAGE_SELF,&myusage);
 338                 gettimeofday(&currenttime,&tz);
 339                 printf("OK u:%1.2f s:%1.2f r:%1.2f\n",
 340                        (double)myusage.ru_utime.tv_sec+
 341                        (double)myusage.ru_utime.tv_usec/1000000.0,
 342                        (double)myusage.ru_stime.tv_sec+
 343                        (double)myusage.ru_stime.tv_usec/1000000.0,
 344                        (double)(currenttime.tv_sec-starttime.tv_sec)
 345                        +(double)(currenttime.tv_usec-starttime.tv_usec)
 346                        /1000000.0);
 347 #else
 348                 printf("OK\n");
 349 #endif
 350                 fflush(stdout); /* this is important for pipes to work */
 351             }
 352         }
 353     else if (argc == 2)
 354         {
 355                 PrintUsage(argv[1]);
 356                 exit(0);
 357         }
 358     else if (argc == 3 && !strcmp(argv[1],"help"))
 359         {
 360                 PrintUsage(argv[2]);
 361                 exit(0);
 362         }
 363     else
 364         HandleInputLine(argc, argv, stderr);
 365     return 0;
 366 }
 367
 368 /* HandleInputLine is NOT thread safe - due to readdir issues,
 369    resolving them portably is not really simple. */
 370 int HandleInputLine(int argc, char **argv, FILE* out)
 371 {
 372 #if defined(HAVE_OPENDIR) && defined (HAVE_READDIR)
 373     DIR           *curdir; /* to read current dir with ls */
 374     struct dirent *dent;
 375 #endif
 376 #if defined(HAVE_SYS_STAT_H)
 377     struct stat   st;
 378 #endif
 379     optind=0; /* reset gnu getopt */
 380     opterr=0; /* no error messages */
 381
 382     if (RemoteMode){
 383        if (argc>1 && strcmp("quit", argv[1]) == 0){
 384           if (argc>2){
 385              printf("ERROR: invalid parameter count for quit\n");
 386              return(0);
 387           }
 388           exit(0);
 389        }
 390 #if defined(HAVE_OPENDIR) && defined(HAVE_READDIR) && defined(HAVE_CHDIR)
 391        if (argc>1 && strcmp("cd", argv[1]) == 0){
 392           if (argc>3){
 393              printf("ERROR: invalid parameter count for cd\n");
 394              return(0);
 395           }
 396 #if ! defined(HAVE_CHROOT) || ! defined(HAVE_GETUID)
 397           if (getuid()==0 && ! ChangeRoot){
 398              printf("ERROR: chdir security problem - rrdtool is runnig as "
 399                     "root an no chroot!\n");
 400              return(0);
 401           }
 402 #endif
 403           chdir(argv[2]);
 404           if (errno!=0){
 405              printf("ERROR: %s\n",strerror(errno));
 406           }
 407           return(0);
 408        }
 409        if (argc>1 && strcmp("mkdir", argv[1]) == 0){
 410           if (argc>3){
 411              printf("ERROR: invalid parameter count for mkdir\n");
 412              return(0);
 413           }
 414 #if ! defined(HAVE_CHROOT) || ! defined(HAVE_GETUID)
 415           if (getuid()==0 && ! ChangeRoot){
 416              printf("ERROR: mkdir security problem - rrdtool is runnig as "
 417                     "root an no chroot!\n");
 418              return(0);
 419           }
 420 #endif
 421           mkdir(argv[2],0777);
 422           if (errno!=0){
 423              printf("ERROR: %s\n",strerror(errno));
 424           }
 425           return(0);
 426        }
 427        if (argc>1 && strcmp("ls", argv[1]) == 0){
 428           if (argc>2){
 429              printf("ERROR: invalid parameter count for ls\n");
 430              return(0);
 431           }
 432           if ((curdir=opendir("."))!=NULL){
 433              while((dent=readdir(curdir))!=NULL){
 434                 if (!stat(dent->d_name,&st)){
 435                    if (S_ISDIR(st.st_mode)){
 436                       printf("d %s\n",dent->d_name);
 437                    }
 438                    if (strlen(dent->d_name)>4 && S_ISREG(st.st_mode)){
 439                       if (!strcmp(dent->d_name+NAMLEN(dent)-4,".rrd") ||
 440                           !strcmp(dent->d_name+NAMLEN(dent)-4,".RRD")){
 441                          printf("- %s\n",dent->d_name);
 442                       }
 443                    }
 444                 }
 445              }
 446           }
 447           else{
 448              printf("ERROR: %s\n",strerror(errno));
 449              return(errno);
 450           }
 451           return(0);
 452        }
 453 #endif /* opendir and readdir */
 454
 455     }
 456     if (argc < 3
 457         || strcmp("help", argv[1]) == 0
 458         || strcmp("--help", argv[1]) == 0
 459         || strcmp("-help", argv[1]) == 0
 460         || strcmp("-?", argv[1]) == 0
 461         || strcmp("-h", argv[1]) == 0 ) {
 462         PrintUsage("");
 463         return 0;
 464     }
 465
 466     if (strcmp("create", argv[1]) == 0)
 467         rrd_create(argc-1, &argv[1]);
 468     else if (strcmp("dump", argv[1]) == 0)
 469         rrd_dump(argc-1, &argv[1]);
 470     else if (strcmp("info", argv[1]) == 0){
 471         info_t *data,*save;
 472         data=rrd_info(argc-1, &argv[1]);
 473         while (data) {
 474             save=data;
 475             printf ("%s = ", data->key);
 476             free(data->key);
 477
 478             switch (data->type) {
 479             case RD_I_VAL:
 480                 if (isnan (data->value.u_val))
 481                     printf("NaN");
 482                 else
 483                     printf ("%0.10e", data->value.u_val);
 484                 break;
 485             case RD_I_CNT:
 486                 printf ("%lu", data->value.u_cnt);
 487                 break;
 488             case RD_I_STR:
 489                 printf ("\"%s\"", data->value.u_str);
 490                 free(data->value.u_str);
 491                 break;
 492             }
 493             data = data->next;
 494             free(save);
 495             printf ("\n");
 496         }
 497         free(data);
 498     }
 499
 500     else if (strcmp("--version", argv[1]) == 0 ||
 501              strcmp("version", argv[1]) == 0 ||
 502              strcmp("v", argv[1]) == 0 ||
 503              strcmp("-v", argv[1]) == 0  ||
 504              strcmp("-version", argv[1]) == 0  )
 505         printf("RRDtool 1.1.x  Copyright (C) 1997-2003 by Tobias Oetiker <tobi@oetiker.ch>\n");
 506     else if (strcmp("restore", argv[1]) == 0)
 507         rrd_restore(argc-1, &argv[1]);
 508     else if (strcmp("resize", argv[1]) == 0)
 509         rrd_resize(argc-1, &argv[1]);
 510     else if (strcmp("last", argv[1]) == 0)
 511         printf("%ld\n",rrd_last(argc-1, &argv[1]));
 512     else if (strcmp("update", argv[1]) == 0)
 513         rrd_update(argc-1, &argv[1]);
 514     else if (strcmp("fetch", argv[1]) == 0) {
 515         time_t        start,end, ti;
 516         unsigned long step, ds_cnt,i,ii;
 517         rrd_value_t   *data,*datai;
 518         char          **ds_namv;
 519         if (rrd_fetch(argc-1, &argv[1],&start,&end,&step,&ds_cnt,&ds_namv,&data) != -1) {
 520             datai=data;
 521             printf("           ");
 522             for (i = 0; i<ds_cnt;i++)
 523                 printf("%14s",ds_namv[i]);
 524             printf ("\n\n");
 525             for (ti = start+step; ti <= end; ti += step){
 526                 printf("%10lu:", ti);
 527                 for (ii = 0; ii < ds_cnt; ii++)
 528                     printf(" %0.10e", *(datai++));
 529                 printf("\n");
 530             }
 531             for (i=0;i<ds_cnt;i++)
 532                   free(ds_namv[i]);
 533             free(ds_namv);
 534             free (data);
 535         }
 536     } else if (strcmp("xport", argv[1]) == 0) {
 537         int xxsize;
 538         unsigned long int j = 0;
 539         time_t        start,end, ti;
 540         unsigned long step, col_cnt,row_cnt;
 541         rrd_value_t   *data,*ptr;
 542         char          **legend_v;
 543         if(rrd_xport(argc-1, &argv[1], &xxsize,&start,&end,&step,&col_cnt,&legend_v,&data) != -1) {
 544           row_cnt = (end-start)/step;
 545           ptr = data;
 546           printf("<?xml version=\"1.0\" encoding=\"%s\"?>\n\n", XML_ENCODING);
 547           printf("<%s>\n", ROOT_TAG);
 548           printf("  <%s>\n", META_TAG);
 549           printf("    <%s>%lu</%s>\n", META_START_TAG, start+step, META_START_TAG);
 550           printf("    <%s>%lu</%s>\n", META_STEP_TAG, step, META_STEP_TAG);
 551           printf("    <%s>%lu</%s>\n", META_END_TAG, end, META_END_TAG);
 552           printf("    <%s>%lu</%s>\n", META_ROWS_TAG, row_cnt, META_ROWS_TAG);
 553           printf("    <%s>%lu</%s>\n", META_COLS_TAG, col_cnt, META_COLS_TAG);
 554           printf("    <%s>\n", LEGEND_TAG);
 555           for (j = 0; j < col_cnt; j++) {
 556             char *entry = NULL;
 557             entry = legend_v[j];
 558             printf("      <%s>%s</%s>\n", LEGEND_ENTRY_TAG, entry, LEGEND_ENTRY_TAG);
 559             free(entry);
 560           }
 561           free(legend_v);
 562           printf("    </%s>\n", LEGEND_TAG);
 563           printf("  </%s>\n", META_TAG);
 564           printf("  <%s>\n", DATA_TAG);
 565           for (ti = start+step; ti <= end; ti += step) {
 566             printf ("    <%s>", DATA_ROW_TAG);
 567             printf ("<%s>%lu</%s>", COL_TIME_TAG, ti, COL_TIME_TAG);
 568             for (j = 0; j < col_cnt; j++) {
 569               rrd_value_t newval = DNAN;
 570               newval = *ptr;
 571               if(isnan(newval)){
 572                 printf("<%s>NaN</%s>", COL_DATA_TAG, COL_DATA_TAG);
 573               } else {
 574                 printf("<%s>%0.10e</%s>", COL_DATA_TAG, newval, COL_DATA_TAG);
 575               };
 576               ptr++;
 577             }
 578             printf("</%s>\n", DATA_ROW_TAG);
 579           }
 580           free(data);
 581           printf("  </%s>\n", DATA_TAG);
 582           printf("</%s>\n", ROOT_TAG);
 583         }
 584     }
 585     else if (strcmp("graph", argv[1]) == 0) {
 586         char **calcpr;
 587         const char *imgfile = argv[2]; /* rrd_graph changes argv pointer */
 588         int xsize, ysize;
 589         int i;
 590         int tostdout = (strcmp(argv[2],"-") == 0);
 591         if( rrd_graph(argc-1, &argv[1], &calcpr, &xsize, &ysize) != -1 ) {
 592             if (!tostdout)
 593                 printf ("%dx%d\n",xsize,ysize);
 594             if (calcpr) {
 595                 for(i=0;calcpr[i];i++){
 596                     if (!tostdout)
 597                         printf("%s\n",calcpr[i]);
 598                     free(calcpr[i]);
 599                 }
 600                 free(calcpr);
 601             }
 602         }
 603
 604     } else if (strcmp("tune", argv[1]) == 0)
 605                 rrd_tune(argc-1, &argv[1]);
 606     else {
 607                 rrd_set_error("unknown function '%s'",argv[1]);
 608     }
 609     if (rrd_test_error()) {
 610         fprintf(out, "ERROR: %s\n",rrd_get_error());
 611         rrd_clear_error();
 612     }
 613     return(0);
 614 }
 615
 616 int CountArgs(char *aLine)
 617 {
 618     int i=0;
 619     int aCount = 0;
 620     int inarg = 0;
 621     while (aLine[i] == ' ') i++;
 622     while (aLine[i] != 0){
 623         if((aLine[i]== ' ') && inarg){
 624             inarg = 0;
 625         }
 626         if((aLine[i]!= ' ') && ! inarg){
 627             inarg = 1;
 628             aCount++;
 629         }
 630         i++;
 631     }
 632     return aCount;
 633 }
 634
 635 /*
 636  * CreateArgs - take a string (aLine) and tokenize
 637  */
 638 int CreateArgs(char *pName, char *aLine, int argc, char **argv)
 639 {
 640     char        *getP, *putP;
 641     char        **pargv = argv;
 642     char        Quote = 0;
 643     int inArg = 0;
 644     int len;
 645
 646     len = strlen(aLine);
 647     /* remove trailing space and newlines */
 648     while (len && aLine[len] <= ' ') {
 649         aLine[len] = 0 ; len--;
 650     }
 651     /* sikp leading blanks */
 652     while (*aLine && *aLine <= ' ') aLine++;
 653
 654     pargv[0] = pName;
 655     argc = 1;
 656     getP = aLine;
 657     putP = aLine;
 658     while (*getP){
 659         switch (*getP) {
 660         case ' ':
 661             if (Quote){
 662                 *(putP++)=*getP;
 663             } else
 664                 if(inArg) {
 665                     *(putP++) = 0;
 666                     inArg = 0;
 667                 }
 668             break;
 669         case '"':
 670         case '\'':
 671             if (Quote != 0) {
 672                 if (Quote == *getP)
 673                     Quote = 0;
 674                 else {
 675                     *(putP++)=*getP;
 676                 }
 677             } else {
 678                 if(!inArg){
 679                     pargv[argc++] = putP;
 680                     inArg=1;
 681                 }
 682                 Quote = *getP;
 683             }
 684             break;
 685         default:
 686             if(!inArg){
 687                 pargv[argc++] = putP;
 688                 inArg=1;
 689             }
 690             *(putP++)=*getP;
 691             break;
 692         }
 693         getP++;
 694     }
 695
 696     *putP = '\0';
 697
 698     if (Quote)
 699         return -1;
 700     else
 701         return argc;
 702 }
 703
 704