program/src/rrd_info.c

   1 /*****************************************************************************
   2  * RRDtool 1.3.8  Copyright by Tobi Oetiker, 1997-2009
   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 <stdarg.h>
  10
  11 #ifdef WIN32
  12 #include <stdlib.h>
  13 #endif
  14
  15 /* proto */
  16 rrd_info_t *rrd_info(
  17     int,
  18     char **);
  19 rrd_info_t *rrd_info_r(
  20     char *filename);
  21
  22 /* allocate memory for string */
  23 char     *sprintf_alloc(
  24     char *fmt,
  25     ...)
  26 {
  27     char     *str = NULL;
  28     va_list   argp;
  29 #ifdef HAVE_VASPRINTF
  30         va_start( argp, fmt );
  31         vasprintf( &str, fmt, argp );
  32 #else
  33     int       maxlen = 1024 + strlen(fmt);
  34     str = (char*)(malloc(sizeof(char) * (maxlen + 1)));
  35     if (str != NULL) {
  36         va_start(argp, fmt);
  37 #ifdef HAVE_VSNPRINTF
  38         vsnprintf(str, maxlen, fmt, argp);
  39 #else
  40         vsprintf(str, fmt, argp);
  41 #endif
  42     }
  43 #endif // HAVE_VASPRINTF
  44     va_end(argp);
  45     return str;
  46 }
  47
  48 /* the function formerly known as push was renamed to info_push and later
  49  * rrd_info_push because it is now used outside the scope of this file */
  50 rrd_info_t
  51     * rrd_info_push(rrd_info_t * info,
  52                     char *key, rrd_info_type_t type, rrd_infoval_t value)
  53 {
  54     rrd_info_t *next;
  55
  56     next = (rrd_info_t*)(malloc(sizeof(*next)));
  57     next->next = (rrd_info_t *) 0;
  58     if (info)
  59         info->next = next;
  60     next->type = type;
  61     next->key = key;
  62     switch (type) {
  63     case RD_I_VAL:
  64         next->value.u_val = value.u_val;
  65         break;
  66     case RD_I_CNT:
  67         next->value.u_cnt = value.u_cnt;
  68         break;
  69     case RD_I_INT:
  70         next->value.u_int = value.u_int;
  71         break;
  72     case RD_I_STR:
  73         next->value.u_str = (char*)(malloc(sizeof(char) * (strlen(value.u_str) + 1)));
  74         strcpy(next->value.u_str, value.u_str);
  75         break;
  76     case RD_I_BLO:
  77         next->value.u_blo.size = value.u_blo.size;
  78         next->value.u_blo.ptr =
  79             (unsigned char*)malloc(sizeof(unsigned char) * value.u_blo.size);
  80         memcpy(next->value.u_blo.ptr, value.u_blo.ptr, value.u_blo.size);
  81         break;
  82     }
  83     return (next);
  84 }
  85
  86
  87 rrd_info_t *rrd_info(
  88     int argc,
  89     char **argv)
  90 {
  91     rrd_info_t *info;
  92
  93     if (argc < 2) {
  94         rrd_set_error("please specify an rrd");
  95         return NULL;
  96     }
  97
  98     info = rrd_info_r(argv[1]);
  99
 100     return (info);
 101 }
 102
 103
 104
 105 rrd_info_t *rrd_info_r(
 106     char *filename)
 107 {
 108     unsigned int i, ii = 0;
 109     rrd_t     rrd;
 110     rrd_info_t *data = NULL, *cd;
 111     rrd_infoval_t info;
 112     rrd_file_t *rrd_file;
 113     enum cf_en current_cf;
 114     enum dst_en current_ds;
 115
 116     rrd_file = rrd_open(filename, &rrd, RRD_READONLY);
 117     if (rrd_file == NULL)
 118         goto err_free;
 119
 120     info.u_str = filename;
 121     cd = rrd_info_push(NULL, sprintf_alloc("filename"), RD_I_STR, info);
 122     data = cd;
 123
 124     info.u_str = rrd.stat_head->version;
 125     cd = rrd_info_push(cd, sprintf_alloc("rrd_version"), RD_I_STR, info);
 126
 127     info.u_cnt = rrd.stat_head->pdp_step;
 128     cd = rrd_info_push(cd, sprintf_alloc("step"), RD_I_CNT, info);
 129
 130     info.u_cnt = rrd.live_head->last_up;
 131     cd = rrd_info_push(cd, sprintf_alloc("last_update"), RD_I_CNT, info);
 132
 133     for (i = 0; i < rrd.stat_head->ds_cnt; i++) {
 134
 135         info.u_str = rrd.ds_def[i].dst;
 136         cd = rrd_info_push(cd, sprintf_alloc("ds[%s].type",
 137                                              rrd.ds_def[i].ds_nam),
 138                            RD_I_STR, info);
 139
 140         current_ds = dst_conv(rrd.ds_def[i].dst);
 141         switch (current_ds) {
 142         case DST_CDEF:
 143         {
 144             char     *buffer = NULL;
 145
 146             rpn_compact2str((rpn_cdefds_t *) &(rrd.ds_def[i].par[DS_cdef]),
 147                             rrd.ds_def, &buffer);
 148             info.u_str = buffer;
 149             cd = rrd_info_push(cd,
 150                                sprintf_alloc("ds[%s].cdef",
 151                                              rrd.ds_def[i].ds_nam), RD_I_STR,
 152                                info);
 153             free(buffer);
 154         }
 155             break;
 156         default:
 157             info.u_cnt = rrd.ds_def[i].par[DS_mrhb_cnt].u_cnt;
 158             cd = rrd_info_push(cd,
 159                                sprintf_alloc("ds[%s].minimal_heartbeat",
 160                                              rrd.ds_def[i].ds_nam), RD_I_CNT,
 161                                info);
 162
 163             info.u_val = rrd.ds_def[i].par[DS_min_val].u_val;
 164             cd = rrd_info_push(cd,
 165                                sprintf_alloc("ds[%s].min",
 166                                              rrd.ds_def[i].ds_nam), RD_I_VAL,
 167                                info);
 168
 169             info.u_val = rrd.ds_def[i].par[DS_max_val].u_val;
 170             cd = rrd_info_push(cd,
 171                                sprintf_alloc("ds[%s].max",
 172                                              rrd.ds_def[i].ds_nam), RD_I_VAL,
 173                                info);
 174             break;
 175         }
 176
 177         info.u_str = rrd.pdp_prep[i].last_ds;
 178         cd = rrd_info_push(cd,
 179                            sprintf_alloc("ds[%s].last_ds",
 180                                          rrd.ds_def[i].ds_nam), RD_I_STR,
 181                            info);
 182
 183         info.u_val = rrd.pdp_prep[i].scratch[PDP_val].u_val;
 184         cd = rrd_info_push(cd,
 185                            sprintf_alloc("ds[%s].value",
 186                                          rrd.ds_def[i].ds_nam), RD_I_VAL,
 187                            info);
 188
 189         info.u_cnt = rrd.pdp_prep[i].scratch[PDP_unkn_sec_cnt].u_cnt;
 190         cd = rrd_info_push(cd,
 191                            sprintf_alloc("ds[%s].unknown_sec",
 192                                          rrd.ds_def[i].ds_nam), RD_I_CNT,
 193                            info);
 194     }
 195
 196     for (i = 0; i < rrd.stat_head->rra_cnt; i++) {
 197         info.u_str = rrd.rra_def[i].cf_nam;
 198         cd = rrd_info_push(cd, sprintf_alloc("rra[%d].cf", i), RD_I_STR,
 199                            info);
 200         current_cf = cf_conv(rrd.rra_def[i].cf_nam);
 201
 202         info.u_cnt = rrd.rra_def[i].row_cnt;
 203         cd = rrd_info_push(cd, sprintf_alloc("rra[%d].rows", i), RD_I_CNT,
 204                            info);
 205
 206         info.u_cnt = rrd.rra_ptr[i].cur_row;
 207         cd = rrd_info_push(cd, sprintf_alloc("rra[%d].cur_row", i), RD_I_CNT,
 208                            info);
 209
 210         info.u_cnt = rrd.rra_def[i].pdp_cnt;
 211         cd = rrd_info_push(cd, sprintf_alloc("rra[%d].pdp_per_row", i),
 212                            RD_I_CNT, info);
 213
 214         switch (current_cf) {
 215         case CF_HWPREDICT:
 216         case CF_MHWPREDICT:
 217             info.u_val = rrd.rra_def[i].par[RRA_hw_alpha].u_val;
 218             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].alpha", i),
 219                                RD_I_VAL, info);
 220             info.u_val = rrd.rra_def[i].par[RRA_hw_beta].u_val;
 221             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].beta", i), RD_I_VAL,
 222                                info);
 223             break;
 224         case CF_SEASONAL:
 225         case CF_DEVSEASONAL:
 226             info.u_val = rrd.rra_def[i].par[RRA_seasonal_gamma].u_val;
 227             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].gamma", i),
 228                                RD_I_VAL, info);
 229             if (atoi(rrd.stat_head->version) >= 4) {
 230                 info.u_val =
 231                     rrd.rra_def[i].par[RRA_seasonal_smoothing_window].u_val;
 232                 cd = rrd_info_push(cd,
 233                                    sprintf_alloc("rra[%d].smoothing_window",
 234                                                  i), RD_I_VAL, info);
 235             }
 236             break;
 237         case CF_FAILURES:
 238             info.u_val = rrd.rra_def[i].par[RRA_delta_pos].u_val;
 239             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].delta_pos", i),
 240                                RD_I_VAL, info);
 241             info.u_val = rrd.rra_def[i].par[RRA_delta_neg].u_val;
 242             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].delta_neg", i),
 243                                RD_I_VAL, info);
 244             info.u_cnt = rrd.rra_def[i].par[RRA_failure_threshold].u_cnt;
 245             cd = rrd_info_push(cd,
 246                                sprintf_alloc("rra[%d].failure_threshold", i),
 247                                RD_I_CNT, info);
 248             info.u_cnt = rrd.rra_def[i].par[RRA_window_len].u_cnt;
 249             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].window_length", i),
 250                                RD_I_CNT, info);
 251             break;
 252         case CF_DEVPREDICT:
 253             break;
 254         default:
 255             info.u_val = rrd.rra_def[i].par[RRA_cdp_xff_val].u_val;
 256             cd = rrd_info_push(cd, sprintf_alloc("rra[%d].xff", i), RD_I_VAL,
 257                                info);
 258             break;
 259         }
 260
 261         for (ii = 0; ii < rrd.stat_head->ds_cnt; ii++) {
 262             switch (current_cf) {
 263             case CF_HWPREDICT:
 264             case CF_MHWPREDICT:
 265                 info.u_val =
 266                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 267                                  ii].scratch[CDP_hw_intercept].u_val;
 268                 cd = rrd_info_push(cd,
 269                                    sprintf_alloc
 270                                    ("rra[%d].cdp_prep[%d].intercept", i, ii),
 271                                    RD_I_VAL, info);
 272                 info.u_val =
 273                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 274                                  ii].scratch[CDP_hw_slope].u_val;
 275                 cd = rrd_info_push(cd,
 276                                    sprintf_alloc("rra[%d].cdp_prep[%d].slope",
 277                                                  i, ii), RD_I_VAL, info);
 278                 info.u_cnt =
 279                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 280                                  ii].scratch[CDP_null_count].u_cnt;
 281                 cd = rrd_info_push(cd,
 282                                    sprintf_alloc
 283                                    ("rra[%d].cdp_prep[%d].NaN_count", i, ii),
 284                                    RD_I_CNT, info);
 285                 break;
 286             case CF_SEASONAL:
 287                 info.u_val =
 288                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 289                                  ii].scratch[CDP_hw_seasonal].u_val;
 290                 cd = rrd_info_push(cd,
 291                                    sprintf_alloc
 292                                    ("rra[%d].cdp_prep[%d].seasonal", i, ii),
 293                                    RD_I_VAL, info);
 294                 break;
 295             case CF_DEVSEASONAL:
 296                 info.u_val =
 297                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 298                                  ii].scratch[CDP_seasonal_deviation].u_val;
 299                 cd = rrd_info_push(cd,
 300                                    sprintf_alloc
 301                                    ("rra[%d].cdp_prep[%d].deviation", i, ii),
 302                                    RD_I_VAL, info);
 303                 break;
 304             case CF_DEVPREDICT:
 305                 break;
 306             case CF_FAILURES:
 307             {
 308                 unsigned short j;
 309                 char     *violations_array;
 310                 char      history[MAX_FAILURES_WINDOW_LEN + 1];
 311
 312                 violations_array =
 313                     (char *) rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 314                                           ii].scratch;
 315                 for (j = 0; j < rrd.rra_def[i].par[RRA_window_len].u_cnt; ++j)
 316                     history[j] = (violations_array[j] == 1) ? '1' : '0';
 317                 history[j] = '\0';
 318                 info.u_str = history;
 319                 cd = rrd_info_push(cd,
 320                                    sprintf_alloc
 321                                    ("rra[%d].cdp_prep[%d].history", i, ii),
 322                                    RD_I_STR, info);
 323             }
 324                 break;
 325             default:
 326                 info.u_val =
 327                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 328                                  ii].scratch[CDP_val].u_val;
 329                 cd = rrd_info_push(cd,
 330                                    sprintf_alloc("rra[%d].cdp_prep[%d].value",
 331                                                  i, ii), RD_I_VAL, info);
 332                 info.u_cnt =
 333                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 334                                  ii].scratch[CDP_unkn_pdp_cnt].u_cnt;
 335                 cd = rrd_info_push(cd,
 336                                    sprintf_alloc
 337                                    ("rra[%d].cdp_prep[%d].unknown_datapoints",
 338                                     i, ii), RD_I_CNT, info);
 339                 break;
 340             }
 341         }
 342     }
 343
 344     rrd_close(rrd_file);
 345   err_free:
 346     rrd_free(&rrd);
 347     return (data);
 348 }
 349
 350
 351 void rrd_info_print(
 352     rrd_info_t * data)
 353 {
 354     while (data) {
 355         printf("%s = ", data->key);
 356
 357         switch (data->type) {
 358         case RD_I_VAL:
 359             if (isnan(data->value.u_val))
 360                 printf("NaN\n");
 361             else
 362                 printf("%0.10e\n", data->value.u_val);
 363             break;
 364         case RD_I_CNT:
 365             printf("%lu\n", data->value.u_cnt);
 366             break;
 367         case RD_I_INT:
 368             printf("%d\n", data->value.u_int);
 369             break;
 370         case RD_I_STR:
 371             printf("\"%s\"\n", data->value.u_str);
 372             break;
 373         case RD_I_BLO:
 374             printf("BLOB_SIZE:%lu\n", data->value.u_blo.size);
 375             fwrite(data->value.u_blo.ptr, data->value.u_blo.size, 1, stdout);
 376             break;
 377         }
 378         data = data->next;
 379     }
 380 }
 381
 382 void rrd_info_free(
 383     rrd_info_t * data)
 384 {
 385     rrd_info_t *save;
 386
 387     while (data) {
 388         save = data;
 389         if (data->key) {
 390             if (data->type == RD_I_STR) {
 391                 free(data->value.u_str);
 392             }
 393             if (data->type == RD_I_BLO) {
 394                 free(data->value.u_blo.ptr);
 395             }
 396             free(data->key);
 397         }
 398         data = data->next;
 399         free(save);
 400     }
 401 }