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_file = rrd_open(filename, &rrd, RRD_READONLY);
 150     if (rrd_file == NULL)
 151         goto err_free;
 152
 153     info.u_str = filename;
 154     cd = rrd_info_push(NULL, sprintf_alloc("filename"), RD_I_STR, info);
 155     data = cd;
 156
 157     info.u_str = rrd.stat_head->version;
 158     cd = rrd_info_push(cd, sprintf_alloc("rrd_version"), RD_I_STR, info);
 159
 160     info.u_cnt = rrd.stat_head->pdp_step;
 161     cd = rrd_info_push(cd, sprintf_alloc("step"), RD_I_CNT, info);
 162
 163     info.u_cnt = rrd.live_head->last_up;
 164     cd = rrd_info_push(cd, sprintf_alloc("last_update"), RD_I_CNT, info);
 165
 166     for (i = 0; i < rrd.stat_head->ds_cnt; i++) {
 167
 168         info.u_str = rrd.ds_def[i].dst;
 169         cd = rrd_info_push(cd, sprintf_alloc("ds[%s].type",
 170                                              rrd.ds_def[i].ds_nam),
 171                            RD_I_STR, info);
 172
 173         current_ds = dst_conv(rrd.ds_def[i].dst);
 174         switch (current_ds) {
 175         case DST_CDEF:
 176         {
 177             char     *buffer = NULL;
 178
 179             rpn_compact2str((rpn_cdefds_t *) &(rrd.ds_def[i].par[DS_cdef]),
 180                             rrd.ds_def, &buffer);
 181             info.u_str = buffer;
 182             cd = rrd_info_push(cd,
 183                                sprintf_alloc("ds[%s].cdef",
 184                                              rrd.ds_def[i].ds_nam), RD_I_STR,
 185                                info);
 186             free(buffer);
 187         }
 188             break;
 189         default:
 190             info.u_cnt = rrd.ds_def[i].par[DS_mrhb_cnt].u_cnt;
 191             cd = rrd_info_push(cd,
 192                                sprintf_alloc("ds[%s].minimal_heartbeat",
 193                                              rrd.ds_def[i].ds_nam), RD_I_CNT,
 194                                info);
 195
 196             info.u_val = rrd.ds_def[i].par[DS_min_val].u_val;
 197             cd = rrd_info_push(cd,
 198                                sprintf_alloc("ds[%s].min",
 199                                              rrd.ds_def[i].ds_nam), RD_I_VAL,
 200                                info);
 201
 202             info.u_val = rrd.ds_def[i].par[DS_max_val].u_val;
 203             cd = rrd_info_push(cd,
 204                                sprintf_alloc("ds[%s].max",
 205                                              rrd.ds_def[i].ds_nam), RD_I_VAL,
 206                                info);
 207             break;
 208         }
 209
 210         info.u_str = rrd.pdp_prep[i].last_ds;
 211         cd = rrd_info_push(cd,
 212                            sprintf_alloc("ds[%s].last_ds",
 213                                          rrd.ds_def[i].ds_nam), RD_I_STR,
 214                            info);
 215
 216         info.u_val = rrd.pdp_prep[i].scratch[PDP_val].u_val;
 217         cd = rrd_info_push(cd,
 218                            sprintf_alloc("ds[%s].value",
 219                                          rrd.ds_def[i].ds_nam), RD_I_VAL,
 220                            info);
 221
 222         info.u_cnt = rrd.pdp_prep[i].scratch[PDP_unkn_sec_cnt].u_cnt;
 223         cd = rrd_info_push(cd,
 224                            sprintf_alloc("ds[%s].unknown_sec",
 225                                          rrd.ds_def[i].ds_nam), RD_I_CNT,
 226                            info);
 227     }
 228
 229     for (i = 0; i < rrd.stat_head->rra_cnt; i++) {
 230         info.u_str = rrd.rra_def[i].cf_nam;
 231         cd = rrd_info_push(cd, sprintf_alloc("rra[%d].cf", i), RD_I_STR,
 232                            info);
 233         current_cf = cf_conv(rrd.rra_def[i].cf_nam);
 234
 235         info.u_cnt = rrd.rra_def[i].row_cnt;
 236         cd = rrd_info_push(cd, sprintf_alloc("rra[%d].rows", i), RD_I_CNT,
 237                            info);
 238
 239         info.u_cnt = rrd.rra_ptr[i].cur_row;
 240         cd = rrd_info_push(cd, sprintf_alloc("rra[%d].cur_row", i), RD_I_CNT,
 241                            info);
 242
 243         info.u_cnt = rrd.rra_def[i].pdp_cnt;
 244         cd = rrd_info_push(cd, sprintf_alloc("rra[%d].pdp_per_row", i),
 245                            RD_I_CNT, info);
 246
 247         switch (current_cf) {
 248         case CF_HWPREDICT:
 249         case CF_MHWPREDICT:
 250             info.u_val = rrd.rra_def[i].par[RRA_hw_alpha].u_val;
 251             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].alpha", i),
 252                                RD_I_VAL, info);
 253             info.u_val = rrd.rra_def[i].par[RRA_hw_beta].u_val;
 254             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].beta", i), RD_I_VAL,
 255                                info);
 256             break;
 257         case CF_SEASONAL:
 258         case CF_DEVSEASONAL:
 259             info.u_val = rrd.rra_def[i].par[RRA_seasonal_gamma].u_val;
 260             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].gamma", i),
 261                                RD_I_VAL, info);
 262             if (atoi(rrd.stat_head->version) >= 4) {
 263                 info.u_val =
 264                     rrd.rra_def[i].par[RRA_seasonal_smoothing_window].u_val;
 265                 cd = rrd_info_push(cd,
 266                                    sprintf_alloc("rra[%d].smoothing_window",
 267                                                  i), RD_I_VAL, info);
 268             }
 269             break;
 270         case CF_FAILURES:
 271             info.u_val = rrd.rra_def[i].par[RRA_delta_pos].u_val;
 272             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].delta_pos", i),
 273                                RD_I_VAL, info);
 274             info.u_val = rrd.rra_def[i].par[RRA_delta_neg].u_val;
 275             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].delta_neg", i),
 276                                RD_I_VAL, info);
 277             info.u_cnt = rrd.rra_def[i].par[RRA_failure_threshold].u_cnt;
 278             cd = rrd_info_push(cd,
 279                                sprintf_alloc("rra[%d].failure_threshold", i),
 280                                RD_I_CNT, info);
 281             info.u_cnt = rrd.rra_def[i].par[RRA_window_len].u_cnt;
 282             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].window_length", i),
 283                                RD_I_CNT, info);
 284             break;
 285         case CF_DEVPREDICT:
 286             break;
 287         default:
 288             info.u_val = rrd.rra_def[i].par[RRA_cdp_xff_val].u_val;
 289             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].xff", i), RD_I_VAL,
 290                                info);
 291             break;
 292         }
 293
 294         for (ii = 0; ii < rrd.stat_head->ds_cnt; ii++) {
 295             switch (current_cf) {
 296             case CF_HWPREDICT:
 297             case CF_MHWPREDICT:
 298                 info.u_val =
 299                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 300                                  ii].scratch[CDP_hw_intercept].u_val;
 301                 cd = rrd_info_push(cd,
 302                                    sprintf_alloc
 303                                    ("rra[%d].cdp_prep[%d].intercept", i, ii),
 304                                    RD_I_VAL, info);
 305                 info.u_val =
 306                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 307                                  ii].scratch[CDP_hw_slope].u_val;
 308                 cd = rrd_info_push(cd,
 309                                    sprintf_alloc("rra[%d].cdp_prep[%d].slope",
 310                                                  i, ii), RD_I_VAL, info);
 311                 info.u_cnt =
 312                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 313                                  ii].scratch[CDP_null_count].u_cnt;
 314                 cd = rrd_info_push(cd,
 315                                    sprintf_alloc
 316                                    ("rra[%d].cdp_prep[%d].NaN_count", i, ii),
 317                                    RD_I_CNT, info);
 318                 break;
 319             case CF_SEASONAL:
 320                 info.u_val =
 321                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 322                                  ii].scratch[CDP_hw_seasonal].u_val;
 323                 cd = rrd_info_push(cd,
 324                                    sprintf_alloc
 325                                    ("rra[%d].cdp_prep[%d].seasonal", i, ii),
 326                                    RD_I_VAL, info);
 327                 break;
 328             case CF_DEVSEASONAL:
 329                 info.u_val =
 330                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 331                                  ii].scratch[CDP_seasonal_deviation].u_val;
 332                 cd = rrd_info_push(cd,
 333                                    sprintf_alloc
 334                                    ("rra[%d].cdp_prep[%d].deviation", i, ii),
 335                                    RD_I_VAL, info);
 336                 break;
 337             case CF_DEVPREDICT:
 338                 break;
 339             case CF_FAILURES:
 340             {
 341                 unsigned short j;
 342                 char     *violations_array;
 343                 char      history[MAX_FAILURES_WINDOW_LEN + 1];
 344
 345                 violations_array =
 346                     (char *) rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 347                                           ii].scratch;
 348                 for (j = 0; j < rrd.rra_def[i].par[RRA_window_len].u_cnt; ++j)
 349                     history[j] = (violations_array[j] == 1) ? '1' : '0';
 350                 history[j] = '\0';
 351                 info.u_str = history;
 352                 cd = rrd_info_push(cd,
 353                                    sprintf_alloc
 354                                    ("rra[%d].cdp_prep[%d].history", i, ii),
 355                                    RD_I_STR, info);
 356             }
 357                 break;
 358             default:
 359                 info.u_val =
 360                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 361                                  ii].scratch[CDP_val].u_val;
 362                 cd = rrd_info_push(cd,
 363                                    sprintf_alloc("rra[%d].cdp_prep[%d].value",
 364                                                  i, ii), RD_I_VAL, info);
 365                 info.u_cnt =
 366                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 367                                  ii].scratch[CDP_unkn_pdp_cnt].u_cnt;
 368                 cd = rrd_info_push(cd,
 369                                    sprintf_alloc
 370                                    ("rra[%d].cdp_prep[%d].unknown_datapoints",
 371                                     i, ii), RD_I_CNT, info);
 372                 break;
 373             }
 374         }
 375     }
 376
 377     rrd_close(rrd_file);
 378   err_free:
 379     rrd_free(&rrd);
 380     return (data);
 381 }
 382
 383
 384 void rrd_info_print(
 385     rrd_info_t * data)
 386 {
 387     while (data) {
 388         printf("%s = ", data->key);
 389
 390         switch (data->type) {
 391         case RD_I_VAL:
 392             if (isnan(data->value.u_val))
 393                 printf("NaN\n");
 394             else
 395                 printf("%0.10e\n", data->value.u_val);
 396             break;
 397         case RD_I_CNT:
 398             printf("%lu\n", data->value.u_cnt);
 399             break;
 400         case RD_I_INT:
 401             printf("%d\n", data->value.u_int);
 402             break;
 403         case RD_I_STR:
 404             printf("\"%s\"\n", data->value.u_str);
 405             break;
 406         case RD_I_BLO:
 407             printf("BLOB_SIZE:%lu\n", data->value.u_blo.size);
 408             fwrite(data->value.u_blo.ptr, data->value.u_blo.size, 1, stdout);
 409             break;
 410         }
 411         data = data->next;
 412     }
 413 }
 414
 415 void rrd_info_free(
 416     rrd_info_t * data)
 417 {
 418     rrd_info_t *save;
 419
 420     while (data) {
 421         save = data;
 422         if (data->key) {
 423             if (data->type == RD_I_STR) {
 424                 free(data->value.u_str);
 425             }
 426             if (data->type == RD_I_BLO) {
 427                 free(data->value.u_blo.ptr);
 428             }
 429             free(data->key);
 430         }
 431         data = data->next;
 432         free(save);
 433     }
 434 }