src/rrd_info.c

   1 /*****************************************************************************
   2  * RRDtool 1.2.23  Copyright by Tobi Oetiker, 1997-2007
   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 /* proto */
  12 info_t   *rrd_info(
  13     int,
  14     char **);
  15 info_t   *rrd_info_r(
  16     char *filename);
  17
  18 /* allocate memory for string */
  19 char     *sprintf_alloc(
  20     char *fmt,
  21     ...)
  22 {
  23 #ifdef HAVE_VSNPRINTF
  24     int       maxlen = 50;
  25 #else
  26     int       maxlen = 1000;
  27 #endif
  28     char     *str = NULL;
  29     va_list   argp;
  30     str = malloc(sizeof(char) * (strlen(fmt) + maxlen));
  31     if (str != NULL) {
  32         va_start(argp, fmt);
  33 #ifdef HAVE_VSNPRINTF
  34         vsnprintf(str, maxlen - 1, 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 info_push because
  44  * it is now used outside the scope of this file */
  45 info_t
  46          *info_push(
  47     info_t *info,
  48     char *key,
  49     enum info_type type,
  50     infoval value)
  51 {
  52     info_t   *next;
  53
  54     next = malloc(sizeof(*next));
  55     next->next = (info_t *) 0;
  56     if (info)
  57         info->next = next;
  58     next->type = type;
  59     next->key = key;
  60     switch (type) {
  61     case RD_I_VAL:
  62         next->value.u_val = value.u_val;
  63         break;
  64     case RD_I_CNT:
  65         next->value.u_cnt = value.u_cnt;
  66         break;
  67     case RD_I_INT:
  68         next->value.u_int = value.u_int;
  69         break;
  70     case RD_I_STR:
  71         next->value.u_str = malloc(sizeof(char) * (strlen(value.u_str) + 1));
  72         strcpy(next->value.u_str, value.u_str);
  73         break;
  74     }
  75     return (next);
  76 }
  77
  78
  79 info_t   *rrd_info(
  80     int argc,
  81     char **argv)
  82 {
  83     info_t   *info;
  84
  85     if (argc < 2) {
  86         rrd_set_error("please specify an rrd");
  87         return NULL;
  88     }
  89
  90     info = rrd_info_r(argv[1]);
  91
  92     return (info);
  93 }
  94
  95
  96
  97 info_t   *rrd_info_r(
  98     char *filename)
  99 {
 100     unsigned int i, ii = 0;
 101     rrd_t     rrd;
 102     info_t   *data, *cd;
 103     infoval   info;
 104     rrd_file_t *rrd_file;
 105     enum cf_en current_cf;
 106     enum dst_en current_ds;
 107
 108     rrd_file = rrd_open(filename, &rrd, RRD_READONLY);
 109     if (rrd_file == NULL) {
 110         return (NULL);
 111     }
 112     close(rrd_file->fd);
 113
 114     info.u_str = filename;
 115     cd = info_push(NULL, sprintf_alloc("filename"), RD_I_STR, info);
 116     data = cd;
 117
 118     info.u_str = rrd.stat_head->version;
 119     cd = info_push(cd, sprintf_alloc("rrd_version"), RD_I_STR, info);
 120
 121     info.u_cnt = rrd.stat_head->pdp_step;
 122     cd = info_push(cd, sprintf_alloc("step"), RD_I_CNT, info);
 123
 124     info.u_cnt = rrd.live_head->last_up;
 125     cd = info_push(cd, sprintf_alloc("last_update"), RD_I_CNT, info);
 126
 127     for (i = 0; i < rrd.stat_head->ds_cnt; i++) {
 128
 129         info.u_str = rrd.ds_def[i].dst;
 130         cd = info_push(cd, sprintf_alloc("ds[%s].type", rrd.ds_def[i].ds_nam),
 131                        RD_I_STR, info);
 132
 133         current_ds = dst_conv(rrd.ds_def[i].dst);
 134         switch (current_ds) {
 135         case DST_CDEF:
 136         {
 137             char     *buffer = NULL;
 138
 139             rpn_compact2str((rpn_cdefds_t *) & (rrd.ds_def[i].par[DS_cdef]),
 140                             rrd.ds_def, &buffer);
 141             info.u_str = buffer;
 142             cd = info_push(cd,
 143                            sprintf_alloc("ds[%s].cdef", rrd.ds_def[i].ds_nam),
 144                            RD_I_STR, info);
 145             free(buffer);
 146         }
 147             break;
 148         default:
 149             info.u_cnt = rrd.ds_def[i].par[DS_mrhb_cnt].u_cnt;
 150             cd = info_push(cd,
 151                            sprintf_alloc("ds[%s].minimal_heartbeat",
 152                                          rrd.ds_def[i].ds_nam), RD_I_CNT,
 153                            info);
 154
 155             info.u_val = rrd.ds_def[i].par[DS_min_val].u_val;
 156             cd = info_push(cd,
 157                            sprintf_alloc("ds[%s].min", rrd.ds_def[i].ds_nam),
 158                            RD_I_VAL, info);
 159
 160             info.u_val = rrd.ds_def[i].par[DS_max_val].u_val;
 161             cd = info_push(cd,
 162                            sprintf_alloc("ds[%s].max", rrd.ds_def[i].ds_nam),
 163                            RD_I_VAL, info);
 164             break;
 165         }
 166
 167         info.u_str = rrd.pdp_prep[i].last_ds;
 168         cd = info_push(cd,
 169                        sprintf_alloc("ds[%s].last_ds", rrd.ds_def[i].ds_nam),
 170                        RD_I_STR, info);
 171
 172         info.u_val = rrd.pdp_prep[i].scratch[PDP_val].u_val;
 173         cd = info_push(cd,
 174                        sprintf_alloc("ds[%s].value", rrd.ds_def[i].ds_nam),
 175                        RD_I_VAL, info);
 176
 177         info.u_cnt = rrd.pdp_prep[i].scratch[PDP_unkn_sec_cnt].u_cnt;
 178         cd = info_push(cd,
 179                        sprintf_alloc("ds[%s].unknown_sec",
 180                                      rrd.ds_def[i].ds_nam), RD_I_CNT, info);
 181     }
 182
 183     for (i = 0; i < rrd.stat_head->rra_cnt; i++) {
 184         info.u_str = rrd.rra_def[i].cf_nam;
 185         cd = info_push(cd, sprintf_alloc("rra[%d].cf", i), RD_I_STR, info);
 186         current_cf = cf_conv(rrd.rra_def[i].cf_nam);
 187
 188         info.u_cnt = rrd.rra_def[i].row_cnt;
 189         cd = info_push(cd, sprintf_alloc("rra[%d].rows", i), RD_I_CNT, info);
 190
 191         info.u_cnt = rrd.rra_def[i].pdp_cnt;
 192         cd = info_push(cd, sprintf_alloc("rra[%d].pdp_per_row", i), RD_I_CNT,
 193                        info);
 194
 195         switch (current_cf) {
 196         case CF_HWPREDICT:
 197             info.u_val = rrd.rra_def[i].par[RRA_hw_alpha].u_val;
 198             cd = info_push(cd, sprintf_alloc("rra[%d].alpha", i), RD_I_VAL,
 199                            info);
 200             info.u_val = rrd.rra_def[i].par[RRA_hw_beta].u_val;
 201             cd = info_push(cd, sprintf_alloc("rra[%d].beta", i), RD_I_VAL,
 202                            info);
 203             break;
 204         case CF_SEASONAL:
 205         case CF_DEVSEASONAL:
 206             info.u_val = rrd.rra_def[i].par[RRA_seasonal_gamma].u_val;
 207             cd = info_push(cd, sprintf_alloc("rra[%d].gamma", i), RD_I_VAL,
 208                            info);
 209             break;
 210         case CF_FAILURES:
 211             info.u_val = rrd.rra_def[i].par[RRA_delta_pos].u_val;
 212             cd = info_push(cd, sprintf_alloc("rra[%d].delta_pos", i),
 213                            RD_I_VAL, info);
 214             info.u_val = rrd.rra_def[i].par[RRA_delta_neg].u_val;
 215             cd = info_push(cd, sprintf_alloc("rra[%d].delta_neg", i),
 216                            RD_I_VAL, info);
 217             info.u_cnt = rrd.rra_def[i].par[RRA_failure_threshold].u_cnt;
 218             cd = info_push(cd, sprintf_alloc("rra[%d].failure_threshold", i),
 219                            RD_I_CNT, info);
 220             info.u_cnt = rrd.rra_def[i].par[RRA_window_len].u_cnt;
 221             cd = info_push(cd, sprintf_alloc("rra[%d].window_length", i),
 222                            RD_I_CNT, info);
 223             break;
 224         case CF_DEVPREDICT:
 225             break;
 226         default:
 227             info.u_val = rrd.rra_def[i].par[RRA_cdp_xff_val].u_val;
 228             cd = info_push(cd, sprintf_alloc("rra[%d].xff", i), RD_I_VAL,
 229                            info);
 230             break;
 231         }
 232
 233         for (ii = 0; ii < rrd.stat_head->ds_cnt; ii++) {
 234             switch (current_cf) {
 235             case CF_HWPREDICT:
 236                 info.u_val =
 237                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 238                                  ii].scratch[CDP_hw_intercept].u_val;
 239                 cd = info_push(cd,
 240                                sprintf_alloc("rra[%d].cdp_prep[%d].intercept",
 241                                              i, ii), RD_I_VAL, info);
 242                 info.u_val =
 243                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 244                                  ii].scratch[CDP_hw_slope].u_val;
 245                 cd = info_push(cd,
 246                                sprintf_alloc("rra[%d].cdp_prep[%d].slope", i,
 247                                              ii), RD_I_VAL, info);
 248                 info.u_cnt =
 249                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 250                                  ii].scratch[CDP_null_count].u_cnt;
 251                 cd = info_push(cd,
 252                                sprintf_alloc("rra[%d].cdp_prep[%d].NaN_count",
 253                                              i, ii), RD_I_CNT, info);
 254                 break;
 255             case CF_SEASONAL:
 256                 info.u_val =
 257                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 258                                  ii].scratch[CDP_hw_seasonal].u_val;
 259                 cd = info_push(cd,
 260                                sprintf_alloc("rra[%d].cdp_prep[%d].seasonal",
 261                                              i, ii), RD_I_VAL, info);
 262                 break;
 263             case CF_DEVSEASONAL:
 264                 info.u_val =
 265                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 266                                  ii].scratch[CDP_seasonal_deviation].u_val;
 267                 cd = info_push(cd,
 268                                sprintf_alloc("rra[%d].cdp_prep[%d].deviation",
 269                                              i, ii), RD_I_VAL, info);
 270                 break;
 271             case CF_DEVPREDICT:
 272                 break;
 273             case CF_FAILURES:
 274             {
 275                 unsigned short j;
 276                 char     *violations_array;
 277                 char      history[MAX_FAILURES_WINDOW_LEN + 1];
 278
 279                 violations_array =
 280                     (char *) rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 281                                           ii].scratch;
 282                 for (j = 0; j < rrd.rra_def[i].par[RRA_window_len].u_cnt; ++j)
 283                     history[j] = (violations_array[j] == 1) ? '1' : '0';
 284                 history[j] = '\0';
 285                 info.u_str = history;
 286                 cd = info_push(cd,
 287                                sprintf_alloc("rra[%d].cdp_prep[%d].history",
 288                                              i, ii), RD_I_STR, info);
 289             }
 290                 break;
 291             default:
 292                 info.u_val =
 293                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 294                                  ii].scratch[CDP_val].u_val;
 295                 cd = info_push(cd,
 296                                sprintf_alloc("rra[%d].cdp_prep[%d].value", i,
 297                                              ii), RD_I_VAL, info);
 298                 info.u_cnt =
 299                     rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
 300                                  ii].scratch[CDP_unkn_pdp_cnt].u_cnt;
 301                 cd = info_push(cd,
 302                                sprintf_alloc
 303                                ("rra[%d].cdp_prep[%d].unknown_datapoints", i,
 304                                 ii), RD_I_CNT, info);
 305                 break;
 306             }
 307         }
 308     }
 309     rrd_free(&rrd);
 310     rrd_close(rrd_file);
 311     return (data);
 312
 313 }