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