src/rrd_info.c

   1 /*****************************************************************************
   2  * RRDtool 1.3.2  Copyright by Tobi Oetiker, 1997-2008
   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     int       maxlen = 1024 + strlen(fmt);
  25     char     *str = NULL;
  26     va_list   argp;
  27     str = malloc(sizeof(char) * (maxlen + 1));
  28     if (str != NULL) {
  29         va_start(argp, fmt);
  30 #ifdef HAVE_VSNPRINTF
  31         vsnprintf(str, maxlen, fmt, argp);
  32 #else
  33         vsprintf(str, fmt, argp);
  34 #endif
  35     }
  36     va_end(argp);
  37     return str;
  38 }
  39
  40 /* the function formerly known as push was renamed to info_push and later
  41  * rrd_info_push because it is now used outside the scope of this file */
  42 rrd_info_t
  43     * rrd_info_push(rrd_info_t * info,
  44                     char *key, rrd_info_type_t type, rrd_infoval_t value)
  45 {
  46     rrd_info_t *next;
  47
  48     next = malloc(sizeof(*next));
  49     next->next = (rrd_info_t *) 0;
  50     if (info)
  51         info->next = next;
  52     next->type = type;
  53     next->key = key;
  54     switch (type) {
  55     case RD_I_VAL:
  56         next->value.u_val = value.u_val;
  57         break;
  58     case RD_I_CNT:
  59         next->value.u_cnt = value.u_cnt;
  60         break;
  61     case RD_I_INT:
  62         next->value.u_int = value.u_int;
  63         break;
  64     case RD_I_STR:
  65         next->value.u_str = malloc(sizeof(char) * (strlen(value.u_str) + 1));
  66         strcpy(next->value.u_str, value.u_str);
  67         break;
  68     case RD_I_BLO:
  69         next->value.u_blo.size = value.u_blo.size;
  70         next->value.u_blo.ptr =
  71             malloc(sizeof(unsigned char) * value.u_blo.size);
  72         memcpy(next->value.u_blo.ptr, value.u_blo.ptr, value.u_blo.size);
  73         break;
  74     }
  75     return (next);
  76 }
  77
  78
  79 rrd_info_t *rrd_info(
  80     int argc,
  81     char **argv)
  82 {
  83     rrd_info_t *info;
  84     char *opt_daemon = NULL;
  85     int status;
  86
  87     optind = 0;
  88     opterr = 0;         /* initialize getopt */
  89
  90     while (42) {
  91         int       opt;
  92         int       option_index = 0;
  93         static struct option long_options[] = {
  94             {"daemon", required_argument, 0, 'd'},
  95             {0, 0, 0, 0}
  96         };
  97
  98         opt = getopt_long(argc, argv, "d:", long_options, &option_index);
  99
 100         if (opt == EOF)
 101             break;
 102
 103         switch (opt) {
 104         case 'd':
 105             if (opt_daemon != NULL)
 106                     free (opt_daemon);
 107             opt_daemon = strdup (optarg);
 108             if (opt_daemon == NULL)
 109             {
 110                 rrd_set_error ("strdup failed.");
 111                 return (NULL);
 112             }
 113             break;
 114
 115         default:
 116             rrd_set_error ("Usage: rrdtool %s [--daemon <addr>] <file>",
 117                     argv[0]);
 118             return (NULL);
 119             break;
 120         }
 121     }                   /* while (42) */
 122
 123     if ((argc - optind) != 1) {
 124         rrd_set_error ("Usage: rrdtool %s [--daemon <addr>] <file>",
 125                 argv[0]);
 126         return (NULL);
 127     }
 128
 129     status = rrdc_flush_if_daemon(opt_daemon, argv[optind]);
 130     if (opt_daemon) free (opt_daemon);
 131     if (status) return (NULL);
 132
 133     info = rrd_info_r(argv[optind]);
 134
 135     return (info);
 136 } /* rrd_info_t *rrd_info */
 137
 138 rrd_info_t *rrd_info_r(
 139     char *filename)
 140 {
 141     unsigned int i, ii = 0;
 142     rrd_t     rrd;
 143     rrd_info_t *data = NULL, *cd;
 144     rrd_infoval_t info;
 145     rrd_file_t *rrd_file;
 146     enum cf_en current_cf;
 147     enum dst_en current_ds;
 148
 149     rrd_init(&rrd);
 150     rrd_file = rrd_open(filename, &rrd, RRD_READONLY);
 151     if (rrd_file == NULL)
 152         goto err_free;
 153
 154     info.u_str = filename;
 155     cd = rrd_info_push(NULL, sprintf_alloc("filename"), RD_I_STR, info);
 156     data = cd;
 157
 158     info.u_str = rrd.stat_head->version;
 159     cd = rrd_info_push(cd, sprintf_alloc("rrd_version"), RD_I_STR, info);
 160
 161     info.u_cnt = rrd.stat_head->pdp_step;
 162     cd = rrd_info_push(cd, sprintf_alloc("step"), RD_I_CNT, info);
 163
 164     info.u_cnt = rrd.live_head->last_up;
 165     cd = rrd_info_push(cd, sprintf_alloc("last_update"), RD_I_CNT, info);
 166
 167     for (i = 0; i < rrd.stat_head->ds_cnt; i++) {
 168
 169         info.u_str = rrd.ds_def[i].dst;
 170         cd = rrd_info_push(cd, sprintf_alloc("ds[%s].type",
 171                                              rrd.ds_def[i].ds_nam),
 172                            RD_I_STR, info);
 173
 174         current_ds = dst_conv(rrd.ds_def[i].dst);
 175         switch (current_ds) {
 176         case DST_CDEF:
 177         {
 178             char     *buffer = NULL;
 179
 180             rpn_compact2str((rpn_cdefds_t *) &(rrd.ds_def[i].par[DS_cdef]),
 181                             rrd.ds_def, &buffer);
 182             info.u_str = buffer;
 183             cd = rrd_info_push(cd,
 184                                sprintf_alloc("ds[%s].cdef",
 185                                              rrd.ds_def[i].ds_nam), RD_I_STR,
 186                                info);
 187             free(buffer);
 188         }
 189             break;
 190         default:
 191             info.u_cnt = rrd.ds_def[i].par[DS_mrhb_cnt].u_cnt;
 192             cd = rrd_info_push(cd,
 193                                sprintf_alloc("ds[%s].minimal_heartbeat",
 194                                              rrd.ds_def[i].ds_nam), RD_I_CNT,
 195                                info);
 196
 197             info.u_val = rrd.ds_def[i].par[DS_min_val].u_val;
 198             cd = rrd_info_push(cd,
 199                                sprintf_alloc("ds[%s].min",
 200                                              rrd.ds_def[i].ds_nam), RD_I_VAL,
 201                                info);
 202
 203             info.u_val = rrd.ds_def[i].par[DS_max_val].u_val;
 204             cd = rrd_info_push(cd,
 205                                sprintf_alloc("ds[%s].max",
 206                                              rrd.ds_def[i].ds_nam), RD_I_VAL,
 207                                info);
 208             break;
 209         }
 210
 211         info.u_str = rrd.pdp_prep[i].last_ds;
 212         cd = rrd_info_push(cd,
 213                            sprintf_alloc("ds[%s].last_ds",
 214                                          rrd.ds_def[i].ds_nam), RD_I_STR,
 215                            info);
 216
 217         info.u_val = rrd.pdp_prep[i].scratch[PDP_val].u_val;
 218         cd = rrd_info_push(cd,
 219                            sprintf_alloc("ds[%s].value",
 220                                          rrd.ds_def[i].ds_nam), RD_I_VAL,
 221                            info);
 222
 223         info.u_cnt = rrd.pdp_prep[i].scratch[PDP_unkn_sec_cnt].u_cnt;
 224         cd = rrd_info_push(cd,
 225                            sprintf_alloc("ds[%s].unknown_sec",
 226                                          rrd.ds_def[i].ds_nam), RD_I_CNT,
 227                            info);
 228     }
 229
 230     for (i = 0; i < rrd.stat_head->rra_cnt; i++) {
 231         info.u_str = rrd.rra_def[i].cf_nam;
 232         cd = rrd_info_push(cd, sprintf_alloc("rra[%d].cf", i), RD_I_STR,
 233                            info);
 234         current_cf = cf_conv(rrd.rra_def[i].cf_nam);
 235
 236         info.u_cnt = rrd.rra_def[i].row_cnt;
 237         cd = rrd_info_push(cd, sprintf_alloc("rra[%d].rows", i), RD_I_CNT,
 238                            info);
 239
 240         info.u_cnt = rrd.rra_ptr[i].cur_row;
 241         cd = rrd_info_push(cd, sprintf_alloc("rra[%d].cur_row", i), RD_I_CNT,
 242                            info);
 243
 244         info.u_cnt = rrd.rra_def[i].pdp_cnt;
 245         cd = rrd_info_push(cd, sprintf_alloc("rra[%d].pdp_per_row", i),
 246                            RD_I_CNT, info);
 247
 248         switch (current_cf) {
 249         case CF_HWPREDICT:
 250         case CF_MHWPREDICT:
 251             info.u_val = rrd.rra_def[i].par[RRA_hw_alpha].u_val;
 252             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].alpha", i),
 253                                RD_I_VAL, info);
 254             info.u_val = rrd.rra_def[i].par[RRA_hw_beta].u_val;
 255             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].beta", i), RD_I_VAL,
 256                                info);
 257             break;
 258         case CF_SEASONAL:
 259         case CF_DEVSEASONAL:
 260             info.u_val = rrd.rra_def[i].par[RRA_seasonal_gamma].u_val;
 261             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].gamma", i),
 262                                RD_I_VAL, info);
 263             if (atoi(rrd.stat_head->version) >= 4) {
 264                 info.u_val =
 265                     rrd.rra_def[i].par[RRA_seasonal_smoothing_window].u_val;
 266                 cd = rrd_info_push(cd,
 267                                    sprintf_alloc("rra[%d].smoothing_window",
 268                                                  i), RD_I_VAL, info);
 269             }
 270             break;
 271         case CF_FAILURES:
 272             info.u_val = rrd.rra_def[i].par[RRA_delta_pos].u_val;
 273             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].delta_pos", i),
 274                                RD_I_VAL, info);
 275             info.u_val = rrd.rra_def[i].par[RRA_delta_neg].u_val;
 276             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].delta_neg", i),
 277                                RD_I_VAL, info);
 278             info.u_cnt = rrd.rra_def[i].par[RRA_failure_threshold].u_cnt;
 279             cd = rrd_info_push(cd,
 280                                sprintf_alloc("rra[%d].failure_threshold", i),
 281                                RD_I_CNT, info);
 282             info.u_cnt = rrd.rra_def[i].par[RRA_window_len].u_cnt;
 283             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].window_length", i),
 284                                RD_I_CNT, info);
 285             break;
 286         case CF_DEVPREDICT:
 287             break;
 288         default:
 289             info.u_val = rrd.rra_def[i].par[RRA_cdp_xff_val].u_val;
 290             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].xff", i), RD_I_VAL,
 291                                info);
 292             break;
 293         }
 294
 295         for (ii = 0; ii < rrd.stat_head->ds_cnt; ii++) {
 296             switch (current_cf) {
 297             case CF_HWPREDICT:
 298             case CF_MHWPREDICT:
 299                 info.u_val =
 300                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 301                                  ii].scratch[CDP_hw_intercept].u_val;
 302                 cd = rrd_info_push(cd,
 303                                    sprintf_alloc
 304                                    ("rra[%d].cdp_prep[%d].intercept", i, ii),
 305                                    RD_I_VAL, info);
 306                 info.u_val =
 307                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 308                                  ii].scratch[CDP_hw_slope].u_val;
 309                 cd = rrd_info_push(cd,
 310                                    sprintf_alloc("rra[%d].cdp_prep[%d].slope",
 311                                                  i, ii), RD_I_VAL, info);
 312                 info.u_cnt =
 313                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 314                                  ii].scratch[CDP_null_count].u_cnt;
 315                 cd = rrd_info_push(cd,
 316                                    sprintf_alloc
 317                                    ("rra[%d].cdp_prep[%d].NaN_count", i, ii),
 318                                    RD_I_CNT, info);
 319                 break;
 320             case CF_SEASONAL:
 321                 info.u_val =
 322                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 323                                  ii].scratch[CDP_hw_seasonal].u_val;
 324                 cd = rrd_info_push(cd,
 325                                    sprintf_alloc
 326                                    ("rra[%d].cdp_prep[%d].seasonal", i, ii),
 327                                    RD_I_VAL, info);
 328                 break;
 329             case CF_DEVSEASONAL:
 330                 info.u_val =
 331                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 332                                  ii].scratch[CDP_seasonal_deviation].u_val;
 333                 cd = rrd_info_push(cd,
 334                                    sprintf_alloc
 335                                    ("rra[%d].cdp_prep[%d].deviation", i, ii),
 336                                    RD_I_VAL, info);
 337                 break;
 338             case CF_DEVPREDICT:
 339                 break;
 340             case CF_FAILURES:
 341             {
 342                 unsigned short j;
 343                 char     *violations_array;
 344                 char      history[MAX_FAILURES_WINDOW_LEN + 1];
 345
 346                 violations_array =
 347                     (char *) rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 348                                           ii].scratch;
 349                 for (j = 0; j < rrd.rra_def[i].par[RRA_window_len].u_cnt; ++j)
 350                     history[j] = (violations_array[j] == 1) ? '1' : '0';
 351                 history[j] = '\0';
 352                 info.u_str = history;
 353                 cd = rrd_info_push(cd,
 354                                    sprintf_alloc
 355                                    ("rra[%d].cdp_prep[%d].history", i, ii),
 356                                    RD_I_STR, info);
 357             }
 358                 break;
 359             default:
 360                 info.u_val =
 361                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 362                                  ii].scratch[CDP_val].u_val;
 363                 cd = rrd_info_push(cd,
 364                                    sprintf_alloc("rra[%d].cdp_prep[%d].value",
 365                                                  i, ii), RD_I_VAL, info);
 366                 info.u_cnt =
 367                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 368                                  ii].scratch[CDP_unkn_pdp_cnt].u_cnt;
 369                 cd = rrd_info_push(cd,
 370                                    sprintf_alloc
 371                                    ("rra[%d].cdp_prep[%d].unknown_datapoints",
 372                                     i, ii), RD_I_CNT, info);
 373                 break;
 374             }
 375         }
 376     }
 377
 378     rrd_close(rrd_file);
 379   err_free:
 380     rrd_free(&rrd);
 381     return (data);
 382 }
 383
 384
 385 void rrd_info_print(
 386     rrd_info_t * data)
 387 {
 388     while (data) {
 389         printf("%s = ", data->key);
 390
 391         switch (data->type) {
 392         case RD_I_VAL:
 393             if (isnan(data->value.u_val))
 394                 printf("NaN\n");
 395             else
 396                 printf("%0.10e\n", data->value.u_val);
 397             break;
 398         case RD_I_CNT:
 399             printf("%lu\n", data->value.u_cnt);
 400             break;
 401         case RD_I_INT:
 402             printf("%d\n", data->value.u_int);
 403             break;
 404         case RD_I_STR:
 405             printf("\"%s\"\n", data->value.u_str);
 406             break;
 407         case RD_I_BLO:
 408             printf("BLOB_SIZE:%lu\n", data->value.u_blo.size);
 409             fwrite(data->value.u_blo.ptr, data->value.u_blo.size, 1, stdout);
 410             break;
 411         }
 412         data = data->next;
 413     }
 414 }
 415
 416 void rrd_info_free(
 417     rrd_info_t * data)
 418 {
 419     rrd_info_t *save;
 420
 421     while (data) {
 422         save = data;
 423         if (data->key) {
 424             if (data->type == RD_I_STR) {
 425                 free(data->value.u_str);
 426             }
 427             if (data->type == RD_I_BLO) {
 428                 free(data->value.u_blo.ptr);
 429             }
 430             free(data->key);
 431         }
 432         data = data->next;
 433         free(save);
 434     }
 435 }