src/rrd_info.c

   1 /*****************************************************************************
   2  * RRDtool 1.4.3  Copyright by Tobi Oetiker, 1997-2010
   3  *****************************************************************************
   4  * rrd_info  Get Information about the configuration of an RRD
   5  *****************************************************************************/
   6
   7 #include "rrd_tool.h"
   8 #include "rrd_rpncalc.h"
   9 #include "rrd_client.h"
  10 #include <stdarg.h>
  11
  12 /* proto */
  13 rrd_info_t *rrd_info(
  14     int,
  15     char **);
  16 rrd_info_t *rrd_info_r(
  17     char *filename);
  18
  19 /* allocate memory for string */
  20 char     *sprintf_alloc(
  21     char *fmt,
  22     ...)
  23 {
  24     char     *str = NULL;
  25     va_list   argp;
  26 #ifdef HAVE_VASPRINTF
  27     va_start( argp, fmt );
  28     if (vasprintf( &str, fmt, argp ) == -1){
  29         va_end(argp);
  30         rrd_set_error ("vasprintf failed.");
  31         return(NULL);
  32     }
  33 #else
  34     int       maxlen = 1024 + strlen(fmt);
  35     str = (char*)malloc(sizeof(char) * (maxlen + 1));
  36     if (str != NULL) {
  37         va_start(argp, fmt);
  38 #ifdef HAVE_VSNPRINTF
  39         vsnprintf(str, maxlen, fmt, argp);
  40 #else
  41         vsprintf(str, fmt, argp);
  42 #endif
  43     }
  44 #endif /* HAVE_VASPRINTF */
  45     va_end(argp);
  46     return str;
  47 }
  48
  49 /* the function formerly known as push was renamed to info_push and later
  50  * rrd_info_push because it is now used outside the scope of this file */
  51 rrd_info_t
  52     * rrd_info_push(rrd_info_t * info,
  53                     char *key, rrd_info_type_t type, rrd_infoval_t value)
  54 {
  55     rrd_info_t *next;
  56
  57     next = (rrd_info_t*)malloc(sizeof(*next));
  58     next->next = (rrd_info_t *) 0;
  59     if (info)
  60         info->next = next;
  61     next->type = type;
  62     next->key = key;
  63     switch (type) {
  64     case RD_I_VAL:
  65         next->value.u_val = value.u_val;
  66         break;
  67     case RD_I_CNT:
  68         next->value.u_cnt = value.u_cnt;
  69         break;
  70     case RD_I_INT:
  71         next->value.u_int = value.u_int;
  72         break;
  73     case RD_I_STR:
  74         next->value.u_str = (char*)malloc(sizeof(char) * (strlen(value.u_str) + 1));
  75         strcpy(next->value.u_str, value.u_str);
  76         break;
  77     case RD_I_BLO:
  78         next->value.u_blo.size = value.u_blo.size;
  79         next->value.u_blo.ptr =
  80             (unsigned char *)malloc(sizeof(unsigned char) * value.u_blo.size);
  81         memcpy(next->value.u_blo.ptr, value.u_blo.ptr, value.u_blo.size);
  82         break;
  83     }
  84     return (next);
  85 }
  86
  87
  88 rrd_info_t *rrd_info(
  89     int argc,
  90     char **argv)
  91 {
  92     rrd_info_t *info;
  93     char *opt_daemon = NULL;
  94     int status;
  95     int flushfirst = 1;
  96
  97     optind = 0;
  98     opterr = 0;         /* initialize getopt */
  99
 100     while (42) {
 101         int       opt;
 102         int       option_index = 0;
 103         static struct option long_options[] = {
 104             {"daemon", required_argument, 0, 'd'},
 105             {"noflush", no_argument, 0, 'F'},
 106             {0, 0, 0, 0}
 107         };
 108
 109         opt = getopt_long(argc, argv, "d:F", long_options, &option_index);
 110
 111         if (opt == EOF)
 112             break;
 113
 114         switch (opt) {
 115         case 'd':
 116             if (opt_daemon != NULL)
 117                     free (opt_daemon);
 118             opt_daemon = strdup (optarg);
 119             if (opt_daemon == NULL)
 120             {
 121                 rrd_set_error ("strdup failed.");
 122                 return (NULL);
 123             }
 124             break;
 125
 126         case 'F':
 127             flushfirst = 0;
 128             break;
 129
 130         default:
 131             rrd_set_error ("Usage: rrdtool %s [--daemon <addr> [--noflush]] <file>",
 132                     argv[0]);
 133             return (NULL);
 134             break;
 135         }
 136     }                   /* while (42) */
 137
 138     if ((argc - optind) != 1) {
 139         rrd_set_error ("Usage: rrdtool %s [--daemon <addr> [--noflush]] <file>",
 140                 argv[0]);
 141         return (NULL);
 142     }
 143
 144     if( flushfirst ) {
 145     status = rrdc_flush_if_daemon(opt_daemon, argv[optind]);
 146     if (status) return (NULL);
 147     }
 148
 149     rrdc_connect (opt_daemon);
 150     if (rrdc_is_connected (opt_daemon))
 151         info = rrdc_info (argv[optind]);
 152     else
 153     info = rrd_info_r(argv[optind]);
 154
 155     if (opt_daemon) free(opt_daemon);
 156     return (info);
 157 } /* rrd_info_t *rrd_info */
 158
 159 rrd_info_t *rrd_info_r(
 160     char *filename)
 161 {
 162     unsigned int i, ii = 0;
 163     rrd_t     rrd;
 164     rrd_info_t *data = NULL, *cd;
 165     rrd_infoval_t info;
 166     rrd_file_t *rrd_file;
 167     enum cf_en current_cf;
 168     enum dst_en current_ds;
 169
 170     rrd_init(&rrd);
 171     rrd_file = rrd_open(filename, &rrd, RRD_READONLY);
 172     if (rrd_file == NULL)
 173         goto err_free;
 174
 175     info.u_str = filename;
 176     cd = rrd_info_push(NULL, sprintf_alloc("filename"), RD_I_STR, info);
 177     data = cd;
 178
 179     info.u_str = rrd.stat_head->version;
 180     cd = rrd_info_push(cd, sprintf_alloc("rrd_version"), RD_I_STR, info);
 181
 182     info.u_cnt = rrd.stat_head->pdp_step;
 183     cd = rrd_info_push(cd, sprintf_alloc("step"), RD_I_CNT, info);
 184
 185     info.u_cnt = rrd.live_head->last_up;
 186     cd = rrd_info_push(cd, sprintf_alloc("last_update"), RD_I_CNT, info);
 187
 188     info.u_cnt = rrd_get_header_size(&rrd);
 189     cd = rrd_info_push(cd, sprintf_alloc("header_size"), RD_I_CNT, info);
 190
 191     for (i = 0; i < rrd.stat_head->ds_cnt; i++) {
 192
 193         info.u_cnt=i;
 194         cd= rrd_info_push(cd,sprintf_alloc("ds[%s].index",
 195                                      rrd.ds_def[i].ds_nam),
 196                      RD_I_CNT, info);
 197
 198         info.u_str = rrd.ds_def[i].dst;
 199         cd = rrd_info_push(cd, sprintf_alloc("ds[%s].type",
 200                                              rrd.ds_def[i].ds_nam),
 201                            RD_I_STR, info);
 202
 203         current_ds = dst_conv(rrd.ds_def[i].dst);
 204         switch (current_ds) {
 205         case DST_CDEF:
 206         {
 207             char     *buffer = NULL;
 208
 209             rpn_compact2str((rpn_cdefds_t *) &(rrd.ds_def[i].par[DS_cdef]),
 210                             rrd.ds_def, &buffer);
 211             info.u_str = buffer;
 212             cd = rrd_info_push(cd,
 213                                sprintf_alloc("ds[%s].cdef",
 214                                              rrd.ds_def[i].ds_nam), RD_I_STR,
 215                                info);
 216             free(buffer);
 217         }
 218             break;
 219         default:
 220             info.u_cnt = rrd.ds_def[i].par[DS_mrhb_cnt].u_cnt;
 221             cd = rrd_info_push(cd,
 222                                sprintf_alloc("ds[%s].minimal_heartbeat",
 223                                              rrd.ds_def[i].ds_nam), RD_I_CNT,
 224                                info);
 225
 226             info.u_val = rrd.ds_def[i].par[DS_min_val].u_val;
 227             cd = rrd_info_push(cd,
 228                                sprintf_alloc("ds[%s].min",
 229                                              rrd.ds_def[i].ds_nam), RD_I_VAL,
 230                                info);
 231
 232             info.u_val = rrd.ds_def[i].par[DS_max_val].u_val;
 233             cd = rrd_info_push(cd,
 234                                sprintf_alloc("ds[%s].max",
 235                                              rrd.ds_def[i].ds_nam), RD_I_VAL,
 236                                info);
 237             break;
 238         }
 239
 240         info.u_str = rrd.pdp_prep[i].last_ds;
 241         cd = rrd_info_push(cd,
 242                            sprintf_alloc("ds[%s].last_ds",
 243                                          rrd.ds_def[i].ds_nam), RD_I_STR,
 244                            info);
 245
 246         info.u_val = rrd.pdp_prep[i].scratch[PDP_val].u_val;
 247         cd = rrd_info_push(cd,
 248                            sprintf_alloc("ds[%s].value",
 249                                          rrd.ds_def[i].ds_nam), RD_I_VAL,
 250                            info);
 251
 252         info.u_cnt = rrd.pdp_prep[i].scratch[PDP_unkn_sec_cnt].u_cnt;
 253         cd = rrd_info_push(cd,
 254                            sprintf_alloc("ds[%s].unknown_sec",
 255                                          rrd.ds_def[i].ds_nam), RD_I_CNT,
 256                            info);
 257     }
 258
 259     for (i = 0; i < rrd.stat_head->rra_cnt; i++) {
 260         info.u_str = rrd.rra_def[i].cf_nam;
 261         cd = rrd_info_push(cd, sprintf_alloc("rra[%d].cf", i), RD_I_STR,
 262                            info);
 263         current_cf = cf_conv(rrd.rra_def[i].cf_nam);
 264
 265         info.u_cnt = rrd.rra_def[i].row_cnt;
 266         cd = rrd_info_push(cd, sprintf_alloc("rra[%d].rows", i), RD_I_CNT,
 267                            info);
 268
 269         info.u_cnt = rrd.rra_ptr[i].cur_row;
 270         cd = rrd_info_push(cd, sprintf_alloc("rra[%d].cur_row", i), RD_I_CNT,
 271                            info);
 272
 273         info.u_cnt = rrd.rra_def[i].pdp_cnt;
 274         cd = rrd_info_push(cd, sprintf_alloc("rra[%d].pdp_per_row", i),
 275                            RD_I_CNT, info);
 276
 277         switch (current_cf) {
 278         case CF_HWPREDICT:
 279         case CF_MHWPREDICT:
 280             info.u_val = rrd.rra_def[i].par[RRA_hw_alpha].u_val;
 281             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].alpha", i),
 282                                RD_I_VAL, info);
 283             info.u_val = rrd.rra_def[i].par[RRA_hw_beta].u_val;
 284             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].beta", i), RD_I_VAL,
 285                                info);
 286             break;
 287         case CF_SEASONAL:
 288         case CF_DEVSEASONAL:
 289             info.u_val = rrd.rra_def[i].par[RRA_seasonal_gamma].u_val;
 290             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].gamma", i),
 291                                RD_I_VAL, info);
 292             if (atoi(rrd.stat_head->version) >= 4) {
 293                 info.u_val =
 294                     rrd.rra_def[i].par[RRA_seasonal_smoothing_window].u_val;
 295                 cd = rrd_info_push(cd,
 296                                    sprintf_alloc("rra[%d].smoothing_window",
 297                                                  i), RD_I_VAL, info);
 298             }
 299             break;
 300         case CF_FAILURES:
 301             info.u_val = rrd.rra_def[i].par[RRA_delta_pos].u_val;
 302             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].delta_pos", i),
 303                                RD_I_VAL, info);
 304             info.u_val = rrd.rra_def[i].par[RRA_delta_neg].u_val;
 305             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].delta_neg", i),
 306                                RD_I_VAL, info);
 307             info.u_cnt = rrd.rra_def[i].par[RRA_failure_threshold].u_cnt;
 308             cd = rrd_info_push(cd,
 309                                sprintf_alloc("rra[%d].failure_threshold", i),
 310                                RD_I_CNT, info);
 311             info.u_cnt = rrd.rra_def[i].par[RRA_window_len].u_cnt;
 312             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].window_length", i),
 313                                RD_I_CNT, info);
 314             break;
 315         case CF_DEVPREDICT:
 316             break;
 317         default:
 318             info.u_val = rrd.rra_def[i].par[RRA_cdp_xff_val].u_val;
 319             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].xff", i), RD_I_VAL,
 320                                info);
 321             break;
 322         }
 323
 324         for (ii = 0; ii < rrd.stat_head->ds_cnt; ii++) {
 325             switch (current_cf) {
 326             case CF_HWPREDICT:
 327             case CF_MHWPREDICT:
 328                 info.u_val =
 329                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 330                                  ii].scratch[CDP_hw_intercept].u_val;
 331                 cd = rrd_info_push(cd,
 332                                    sprintf_alloc
 333                                    ("rra[%d].cdp_prep[%d].intercept", i, ii),
 334                                    RD_I_VAL, info);
 335                 info.u_val =
 336                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 337                                  ii].scratch[CDP_hw_slope].u_val;
 338                 cd = rrd_info_push(cd,
 339                                    sprintf_alloc("rra[%d].cdp_prep[%d].slope",
 340                                                  i, ii), RD_I_VAL, info);
 341                 info.u_cnt =
 342                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 343                                  ii].scratch[CDP_null_count].u_cnt;
 344                 cd = rrd_info_push(cd,
 345                                    sprintf_alloc
 346                                    ("rra[%d].cdp_prep[%d].NaN_count", i, ii),
 347                                    RD_I_CNT, info);
 348                 break;
 349             case CF_SEASONAL:
 350                 info.u_val =
 351                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 352                                  ii].scratch[CDP_hw_seasonal].u_val;
 353                 cd = rrd_info_push(cd,
 354                                    sprintf_alloc
 355                                    ("rra[%d].cdp_prep[%d].seasonal", i, ii),
 356                                    RD_I_VAL, info);
 357                 break;
 358             case CF_DEVSEASONAL:
 359                 info.u_val =
 360                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 361                                  ii].scratch[CDP_seasonal_deviation].u_val;
 362                 cd = rrd_info_push(cd,
 363                                    sprintf_alloc
 364                                    ("rra[%d].cdp_prep[%d].deviation", i, ii),
 365                                    RD_I_VAL, info);
 366                 break;
 367             case CF_DEVPREDICT:
 368                 break;
 369             case CF_FAILURES:
 370             {
 371                 unsigned short j;
 372                 char     *violations_array;
 373                 char      history[MAX_FAILURES_WINDOW_LEN + 1];
 374
 375                 violations_array =
 376                     (char *) rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 377                                           ii].scratch;
 378                 for (j = 0; j < rrd.rra_def[i].par[RRA_window_len].u_cnt; ++j)
 379                     history[j] = (violations_array[j] == 1) ? '1' : '0';
 380                 history[j] = '\0';
 381                 info.u_str = history;
 382                 cd = rrd_info_push(cd,
 383                                    sprintf_alloc
 384                                    ("rra[%d].cdp_prep[%d].history", i, ii),
 385                                    RD_I_STR, info);
 386             }
 387                 break;
 388             default:
 389                 info.u_val =
 390                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 391                                  ii].scratch[CDP_val].u_val;
 392                 cd = rrd_info_push(cd,
 393                                    sprintf_alloc("rra[%d].cdp_prep[%d].value",
 394                                                  i, ii), RD_I_VAL, info);
 395                 info.u_cnt =
 396                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 397                                  ii].scratch[CDP_unkn_pdp_cnt].u_cnt;
 398                 cd = rrd_info_push(cd,
 399                                    sprintf_alloc
 400                                    ("rra[%d].cdp_prep[%d].unknown_datapoints",
 401                                     i, ii), RD_I_CNT, info);
 402                 break;
 403             }
 404         }
 405     }
 406
 407     rrd_close(rrd_file);
 408   err_free:
 409     rrd_free(&rrd);
 410     return (data);
 411 }
 412
 413
 414 void rrd_info_print(
 415     rrd_info_t * data)
 416 {
 417     while (data) {
 418         printf("%s = ", data->key);
 419
 420         switch (data->type) {
 421         case RD_I_VAL:
 422             if (isnan(data->value.u_val))
 423                 printf("NaN\n");
 424             else
 425                 printf("%0.10e\n", data->value.u_val);
 426             break;
 427         case RD_I_CNT:
 428             printf("%lu\n", data->value.u_cnt);
 429             break;
 430         case RD_I_INT:
 431             printf("%d\n", data->value.u_int);
 432             break;
 433         case RD_I_STR:
 434             printf("\"%s\"\n", data->value.u_str);
 435             break;
 436         case RD_I_BLO:
 437             printf("BLOB_SIZE:%lu\n", data->value.u_blo.size);
 438             fwrite(data->value.u_blo.ptr, data->value.u_blo.size, 1, stdout);
 439             break;
 440         }
 441         data = data->next;
 442     }
 443 }
 444
 445 void rrd_info_free(
 446     rrd_info_t * data)
 447 {
 448     rrd_info_t *save;
 449
 450     while (data) {
 451         save = data;
 452         if (data->key) {
 453             if (data->type == RD_I_STR) {
 454                 free(data->value.u_str);
 455             }
 456             if (data->type == RD_I_BLO) {
 457                 free(data->value.u_blo.ptr);
 458             }
 459             free(data->key);
 460         }
 461         data = data->next;
 462         free(save);
 463     }
 464 }