src/core/data.c

   1 /*
   2  * SysDB - src/core/data.c
   3  * Copyright (C) 2014 Sebastian 'tokkee' Harl <sh@tokkee.org>
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  16  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  17  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  18  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
  19  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  20  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  */
  27
  28 #if HAVE_CONFIG_H
  29 #       include "config.h"
  30 #endif /* HAVE_CONFIG_H */
  31
  32 #include "sysdb.h"
  33
  34 #include "core/data.h"
  35 #include "utils/error.h"
  36
  37 #include <assert.h>
  38
  39 #include <errno.h>
  40
  41 #include <inttypes.h>
  42
  43 #include <stdio.h>
  44 #include <stdlib.h>
  45 #include <string.h>
  46
  47 #include <math.h>
  48
  49 /*
  50  * private helper functions
  51  */
  52
  53 /* Calculate the linear function 'd1 + n * d2'. */
  54 static int
  55 data_lin(const sdb_data_t *d1, int n, const sdb_data_t *d2, sdb_data_t *res)
  56 {
  57         if (d1->type != d2->type)
  58                 return -1;
  59
  60         if (d1->type == SDB_TYPE_INTEGER)
  61                 res->data.integer = d1->data.integer + (int64_t)n * d2->data.integer;
  62         else if (d1->type == SDB_TYPE_DECIMAL)
  63                 res->data.decimal = d1->data.decimal + (double)n * d2->data.decimal;
  64         else if (d1->type ==  SDB_TYPE_DATETIME)
  65                 res->data.datetime = d1->data.datetime + (sdb_time_t)n * d2->data.datetime;
  66         else
  67                 return -1;
  68         res->type = d1->type;
  69         return 0;
  70 } /* data_lin */
  71
  72 /* Multiply d1 with d2. */
  73 static int
  74 data_mul(const sdb_data_t *d1, const sdb_data_t *d2, sdb_data_t *res)
  75 {
  76         if (d1->type == SDB_TYPE_INTEGER) {
  77                 if (d2->type == SDB_TYPE_INTEGER)
  78                         res->data.integer = d1->data.integer * d2->data.integer;
  79                 else if (d2->type == SDB_TYPE_DATETIME) {
  80                         res->data.datetime = (sdb_time_t)d1->data.integer
  81                                 * d2->data.datetime;
  82                         res->type = SDB_TYPE_DATETIME;
  83                         return 0;
  84                 }
  85                 else
  86                         return -1;
  87         }
  88         else if (d1->type == SDB_TYPE_DECIMAL) {
  89                 if (d2->type == SDB_TYPE_DECIMAL)
  90                         res->data.decimal = d1->data.decimal * d2->data.decimal;
  91                 else if (d2->type == SDB_TYPE_DATETIME) {
  92                         res->data.datetime = (sdb_time_t)(d1->data.decimal
  93                                         * (double)d2->data.datetime);
  94                         res->type = SDB_TYPE_DATETIME;
  95                         return 0;
  96                 }
  97                 else
  98                         return -1;
  99         }
 100         else if (d1->type == SDB_TYPE_DATETIME) {
 101                 if (d2->type == SDB_TYPE_DATETIME)
 102                         res->data.datetime = d1->data.datetime
 103                                 * d2->data.datetime;
 104                 else if (d2->type == SDB_TYPE_INTEGER)
 105                         res->data.datetime = d1->data.datetime
 106                                 * (sdb_time_t)d2->data.integer;
 107                 else if (d2->type == SDB_TYPE_DECIMAL)
 108                         res->data.datetime = (sdb_time_t)((double)d1->data.datetime
 109                                         * d2->data.decimal);
 110                 else
 111                         return -1;
 112         }
 113         else
 114                 return -1;
 115
 116         res->type = d1->type;
 117         return 0;
 118 } /* data_mul */
 119
 120 /* Device d1 by d2 and return the result and the remainder. */
 121 static int
 122 data_div(const sdb_data_t *d1, const sdb_data_t *d2,
 123                 sdb_data_t *res, sdb_data_t *rem)
 124 {
 125         if (d1->type == SDB_TYPE_INTEGER) {
 126                 if (d2->type != SDB_TYPE_INTEGER)
 127                         return -1;
 128                 if (res)
 129                         res->data.integer = d1->data.integer / d2->data.integer;
 130                 if (rem)
 131                         rem->data.integer = d1->data.integer % d2->data.integer;
 132         }
 133         else if (d1->type == SDB_TYPE_DECIMAL) {
 134                 if (d2->type != SDB_TYPE_DECIMAL)
 135                         return -1;
 136                 if (res)
 137                         res->data.decimal = d1->data.decimal / d2->data.decimal;
 138                 if (rem)
 139                         rem->data.decimal = fmod(d1->data.decimal, d2->data.decimal);
 140         }
 141         else if (d1->type == SDB_TYPE_DATETIME) {
 142                 if (d2->type == SDB_TYPE_DECIMAL) {
 143                         if (res)
 144                                 res->data.datetime = (sdb_time_t)((double)d1->data.datetime
 145                                                 / d2->data.decimal);
 146                         if (rem) {
 147                                 double tmp = fmod((double)d1->data.datetime, d2->data.decimal);
 148                                 rem->data.datetime = (sdb_time_t)tmp;
 149                         }
 150                 }
 151                 else {
 152                         sdb_time_t a, b;
 153                         if (d2->type == SDB_TYPE_DATETIME) {
 154                                 a = d1->data.datetime;
 155                                 b = d2->data.datetime;
 156                         }
 157                         else if (d2->type == SDB_TYPE_INTEGER) {
 158                                 a = d1->data.datetime;
 159                                 b = (sdb_time_t)d2->data.integer;
 160                         }
 161                         else
 162                                 return -1;
 163                         if (res)
 164                                 res->data.datetime = a / b;
 165                         if (rem)
 166                                 rem->data.datetime = a % b;
 167                 }
 168         }
 169         else
 170                 return -1;
 171
 172         if (res)
 173                 res->type = d1->type;
 174         if (rem)
 175                 rem->type = d1->type;
 176         return 0;
 177 } /* data_div */
 178
 179 /* Concatenate d1 and d2. */
 180 static int
 181 data_concat(const sdb_data_t *d1, const sdb_data_t *d2, sdb_data_t *res)
 182 {
 183         unsigned char *new;
 184         unsigned char *s1, *s2;
 185         size_t len1, len2;
 186
 187         if (d1->type != d2->type)
 188                 return -1;
 189
 190         if (d1->type == SDB_TYPE_STRING) {
 191                 s1 = (unsigned char *)d1->data.string;
 192                 s2 = (unsigned char *)d2->data.string;
 193                 len1 = s1 ? strlen((char *)s1) : 0;
 194                 len2 = s2 ? strlen((char *)s2) : 0;
 195         }
 196         else if (d1->type == SDB_TYPE_BINARY) {
 197                 s1 = d1->data.binary.datum;
 198                 s2 = d2->data.binary.datum;
 199                 len1 = d1->data.binary.length;
 200                 len2 = d2->data.binary.length;
 201         }
 202         else
 203                 return -1;
 204
 205         assert(s1 && s2);
 206
 207         new = malloc(len1 + len2 + 1);
 208         if (! new)
 209                 return -1;
 210
 211         if (len1)
 212                 memcpy(new, s1, len1);
 213         if (len2)
 214                 memcpy(new + len1, s2, len2);
 215         new[len1 + len2] = '\0';
 216
 217         res->type = d1->type;
 218         if (res->type == SDB_TYPE_STRING) {
 219                 res->data.string = (char *)new;
 220         }
 221         else {
 222                 res->data.binary.datum = new;
 223                 res->data.binary.length = len1 + len2;
 224         }
 225         return 0;
 226 } /* data_concat */
 227
 228 /*
 229  * public API
 230  */
 231
 232 const sdb_data_t SDB_DATA_NULL = SDB_DATA_INIT;
 233
 234 int
 235 sdb_data_copy(sdb_data_t *dst, const sdb_data_t *src)
 236 {
 237         sdb_data_t tmp;
 238
 239         if ((! dst) || (! src))
 240                 return -1;
 241
 242         tmp = *src;
 243         switch (src->type) {
 244                 case SDB_TYPE_STRING:
 245                         if (src->data.string) {
 246                                 tmp.data.string = strdup(src->data.string);
 247                                 if (! tmp.data.string)
 248                                         return -1;
 249                         }
 250                         break;
 251                 case SDB_TYPE_BINARY:
 252                         if (src->data.binary.datum) {
 253                                 tmp.data.binary.datum = malloc(src->data.binary.length);
 254                                 if (! tmp.data.binary.datum)
 255                                         return -1;
 256                                 memcpy(tmp.data.binary.datum, src->data.binary.datum,
 257                                                 src->data.binary.length);
 258                         }
 259                         break;
 260                 case SDB_TYPE_REGEX:
 261                         if (src->data.re.raw) {
 262                                 tmp.data.re.raw = strdup(src->data.re.raw);
 263                                 if (! tmp.data.re.raw)
 264                                         return -1;
 265                                 /* we need to recompile because the regex might point to
 266                                  * dynamically allocated memory */
 267                                 if (regcomp(&tmp.data.re.regex, tmp.data.re.raw,
 268                                                         REG_EXTENDED | REG_ICASE | REG_NOSUB)) {
 269                                         free(tmp.data.re.raw);
 270                                         return -1;
 271                                 }
 272                         }
 273                         else
 274                                 memset(&tmp.data.re.regex, 0, sizeof(tmp.data.re.regex));
 275                         break;
 276         }
 277
 278         sdb_data_free_datum(dst);
 279         *dst = tmp;
 280         return 0;
 281 } /* sdb_data_copy */
 282
 283 void
 284 sdb_data_free_datum(sdb_data_t *datum)
 285 {
 286         if (! datum)
 287                 return;
 288
 289         switch (datum->type) {
 290                 case SDB_TYPE_STRING:
 291                         if (datum->data.string)
 292                                 free(datum->data.string);
 293                         datum->data.string = NULL;
 294                         break;
 295                 case SDB_TYPE_BINARY:
 296                         if (datum->data.binary.datum)
 297                                 free(datum->data.binary.datum);
 298                         datum->data.binary.datum = NULL;
 299                         datum->data.binary.length = 0;
 300                         break;
 301                 case SDB_TYPE_REGEX:
 302                         if (datum->data.re.raw) {
 303                                 free(datum->data.re.raw);
 304                                 regfree(&datum->data.re.regex);
 305                         }
 306                         datum->data.re.raw = NULL;
 307                         memset(&datum->data.re.regex, 0, sizeof(datum->data.re.regex));
 308                         break;
 309         }
 310 } /* sdb_data_free_datum */
 311
 312 int
 313 sdb_data_cmp(const sdb_data_t *d1, const sdb_data_t *d2)
 314 {
 315 #define CMP_NULL(a, b) \
 316         do { \
 317                 if (!(a) && !(b)) return 0; \
 318                 if (!(a)) return -1; \
 319                 if (!(b)) return 1; \
 320         } while (0)
 321
 322         CMP_NULL(d1, d2);
 323
 324         if (d1->type != d2->type)
 325                 return SDB_CMP(d1->type, d2->type);
 326
 327         switch (d1->type) {
 328                 case SDB_TYPE_INTEGER:
 329                         return SDB_CMP(d1->data.integer, d2->data.integer);
 330                 case SDB_TYPE_DECIMAL:
 331                         return SDB_CMP(d1->data.decimal, d2->data.decimal);
 332                 case SDB_TYPE_STRING:
 333                         CMP_NULL(d1->data.string, d2->data.string);
 334                         return strcasecmp(d1->data.string, d2->data.string);
 335                 case SDB_TYPE_DATETIME:
 336                         return SDB_CMP(d1->data.datetime, d2->data.datetime);
 337                 case SDB_TYPE_BINARY:
 338                 {
 339                         int diff;
 340
 341                         CMP_NULL(d1->data.binary.datum, d2->data.binary.datum);
 342
 343                         /* on a common prefix, the shorter datum sorts less */
 344                         if (d1->data.binary.length < d2->data.binary.length) {
 345                                 diff = memcmp(d1->data.binary.datum, d2->data.binary.datum,
 346                                                 d1->data.binary.length);
 347                                 diff = diff ? diff : -1;
 348                         }
 349                         else if (d1->data.binary.length > d2->data.binary.length) {
 350                                 diff = memcmp(d1->data.binary.datum, d2->data.binary.datum,
 351                                                 d2->data.binary.length);
 352                                 diff = diff ? diff : 1;
 353                         }
 354                         else
 355                                 diff = memcmp(d1->data.binary.datum, d2->data.binary.datum,
 356                                                 d1->data.binary.length);
 357
 358                         return diff;
 359                 }
 360                 case SDB_TYPE_REGEX:
 361                         CMP_NULL(d1->data.re.raw, d2->data.re.raw);
 362                         return strcmp(d1->data.re.raw, d2->data.re.raw);
 363         }
 364         return -1;
 365 } /* sdb_data_cmp */
 366
 367 int
 368 sdb_data_strcmp(const sdb_data_t *d1, const sdb_data_t *d2)
 369 {
 370         char d1_str[sdb_data_strlen(d1) + 1];
 371         char d2_str[sdb_data_strlen(d2) + 1];
 372
 373         if (sdb_data_isnull(d1))
 374                 d1 = NULL;
 375         if (sdb_data_isnull(d2))
 376                 d2 = NULL;
 377
 378         CMP_NULL(d1, d2);
 379
 380         if (sdb_data_format(d1, d1_str, sizeof(d1_str), SDB_UNQUOTED) < 0)
 381                 return SDB_CMP(sizeof(d1_str), sizeof(d2_str));
 382         if (sdb_data_format(d2, d2_str, sizeof(d2_str), SDB_UNQUOTED) < 0)
 383                 return SDB_CMP(sizeof(d1_str), sizeof(d2_str));
 384
 385         return strcasecmp(d1_str, d2_str);
 386 #undef CMP_NULL
 387 } /* sdb_data_strcmp */
 388
 389 _Bool
 390 sdb_data_isnull(const sdb_data_t *datum)
 391 {
 392         if (! datum)
 393                 return 1;
 394         if (datum->type == SDB_TYPE_NULL)
 395                 return 1;
 396         if ((datum->type == SDB_TYPE_STRING) && (! datum->data.string))
 397                 return 1;
 398         if ((datum->type == SDB_TYPE_BINARY) && (! datum->data.binary.datum))
 399                 return 1;
 400         if ((datum->type == SDB_TYPE_REGEX) && (! datum->data.re.raw))
 401                 return 1;
 402         return 0;
 403 } /* sdb_data_isnull */
 404
 405 int
 406 sdb_data_parse_op(const char *op)
 407 {
 408         if (! strcmp(op, "+"))
 409                 return SDB_DATA_ADD;
 410         else if (! strcmp(op, "-"))
 411                 return SDB_DATA_SUB;
 412         else if (! strcmp(op, "*"))
 413                 return SDB_DATA_MUL;
 414         else if (! strcmp(op, "/"))
 415                 return SDB_DATA_DIV;
 416         else if (! strcmp(op, "%"))
 417                 return SDB_DATA_MOD;
 418         else if (! strcmp(op, "||"))
 419                 return SDB_DATA_CONCAT;
 420         return -1;
 421 } /* sdb_data_parse_op */
 422
 423 int
 424 sdb_data_expr_eval(int op, const sdb_data_t *d1, const sdb_data_t *d2,
 425                 sdb_data_t *res)
 426 {
 427         if ((! d1) || (! d2) || (! res))
 428                 return -1;
 429         if (sdb_data_isnull(d1) || sdb_data_isnull(d2)) {
 430                 *res = SDB_DATA_NULL;
 431                 return 0;
 432         }
 433         switch (op) {
 434                 case SDB_DATA_CONCAT:
 435                         return data_concat(d1, d2, res);
 436                 case SDB_DATA_ADD:
 437                         return data_lin(d1, 1, d2, res);
 438                 case SDB_DATA_SUB:
 439                         return data_lin(d1, -1, d2, res);
 440                 case SDB_DATA_MUL:
 441                         return data_mul(d1, d2, res);
 442                 case SDB_DATA_DIV:
 443                         return data_div(d1, d2, res, NULL);
 444                 case SDB_DATA_MOD:
 445                         return data_div(d1, d2, NULL, res);
 446         }
 447         return -1;
 448 } /* sdb_data_expr_eval */
 449
 450 size_t
 451 sdb_data_strlen(const sdb_data_t *datum)
 452 {
 453         if (! datum)
 454                 return 0;
 455
 456         switch (datum->type) {
 457                 case SDB_TYPE_INTEGER:
 458                         /* log(64) */
 459                         return 20;
 460                 case SDB_TYPE_DECIMAL:
 461                         /* XXX: -d.dddddde+dd or -ddddd.dddddd */
 462                         return 42;
 463                 case SDB_TYPE_STRING:
 464                         if (! datum->data.string)
 465                                 return 8; /* "<NULL>" */
 466                         /* in the worst case, each character needs to be escaped */
 467                         return 2 * strlen(datum->data.string) + 2;
 468                 case SDB_TYPE_DATETIME:
 469                         /* "YYYY-MM-DD HH:MM:SS +zzzz" */
 470                         return 27;
 471                 case SDB_TYPE_BINARY:
 472                         if (! datum->data.binary.datum)
 473                                 return 8; /* "<NULL>" */
 474                         /* "\xNN" */
 475                         return 4 * datum->data.binary.length + 2;
 476                 case SDB_TYPE_REGEX:
 477                         if (! datum->data.re.raw)
 478                                 return 8; /* "<NULL>" */
 479                         /* "/.../" */
 480                         return strlen(datum->data.re.raw) + 4;
 481         }
 482         return 0;
 483 } /* sdb_data_strlen */
 484
 485 int
 486 sdb_data_format(const sdb_data_t *datum, char *buf, size_t buflen, int quoted)
 487 {
 488         char tmp[sdb_data_strlen(datum) + 1];
 489         char *data = NULL;
 490         int ret = -1;
 491
 492         size_t i, pos;
 493
 494         if ((! datum) || (! buf))
 495                 return -1;
 496
 497         switch (datum->type) {
 498                 case SDB_TYPE_INTEGER:
 499                         ret = snprintf(buf, buflen, "%"PRIi64, datum->data.integer);
 500                         break;
 501                 case SDB_TYPE_DECIMAL:
 502                         ret = snprintf(buf, buflen, "%g", datum->data.decimal);
 503                         break;
 504                 case SDB_TYPE_STRING:
 505                         if (! datum->data.string)
 506                                 data = "<NULL>";
 507                         else {
 508                                 pos = 0;
 509                                 for (i = 0; i < strlen(datum->data.string); ++i) {
 510                                         char byte = datum->data.string[i];
 511
 512                                         if ((byte == '\\') || (byte == '"')) {
 513                                                 tmp[pos] = '\\';
 514                                                 ++pos;
 515                                         }
 516                                         tmp[pos] = byte;
 517                                         ++pos;
 518                                 }
 519                                 tmp[pos] = '\0';
 520                                 data = tmp;
 521                         }
 522                         break;
 523                 case SDB_TYPE_DATETIME:
 524                         if (! sdb_strftime(tmp, sizeof(tmp), "%F %T %z",
 525                                                 datum->data.datetime))
 526                                 return -1;
 527                         tmp[sizeof(tmp) - 1] = '\0';
 528                         data = tmp;
 529                         break;
 530                 case SDB_TYPE_BINARY:
 531                         pos = 0;
 532                         for (i = 0; i < datum->data.binary.length; ++i) {
 533                                 int byte = (int)datum->data.binary.datum[i];
 534                                 char hex[] = {'0', '1', '2', '3', '4', '5', '6', '7',
 535                                         '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
 536
 537                                 tmp[pos] = '\\';
 538                                 tmp[pos + 1] = 'x';
 539                                 pos += 2;
 540
 541                                 if (byte > 0xf) {
 542                                         tmp[pos] = hex[byte >> 4];
 543                                         ++pos;
 544                                 }
 545                                 tmp[pos] = hex[byte & 0xf];
 546                                 ++pos;
 547                         }
 548                         if (datum->data.binary.datum) {
 549                                 tmp[pos] = '\0';
 550                                 data = tmp;
 551                         }
 552                         else
 553                                 data = "<NULL>";
 554                         break;
 555                 case SDB_TYPE_REGEX:
 556                         if (! datum->data.re.raw)
 557                                 data = "<NULL>";
 558                         else {
 559                                 snprintf(tmp, sizeof(tmp), "/%s/", datum->data.re.raw);
 560                                 data = tmp;
 561                         }
 562                         break;
 563         }
 564
 565         if (data) {
 566                 if (quoted == SDB_UNQUOTED)
 567                         ret = snprintf(buf, buflen, "%s", data);
 568                 else if (quoted == SDB_SINGLE_QUOTED)
 569                         ret = snprintf(buf, buflen, "'%s'", data);
 570                 else
 571                         ret = snprintf(buf, buflen, "\"%s\"", data);
 572         }
 573         buf[buflen - 1] = '\0';
 574         return ret;
 575 } /* sdb_data_format */
 576
 577 int
 578 sdb_data_parse(char *str, int type, sdb_data_t *data)
 579 {
 580         sdb_data_t tmp;
 581
 582         char *endptr = NULL;
 583
 584         errno = 0;
 585         switch (type) {
 586                 case SDB_TYPE_INTEGER:
 587                         tmp.data.integer = strtoll(str, &endptr, 0);
 588                         break;
 589                 case SDB_TYPE_DECIMAL:
 590                         tmp.data.decimal = strtod(str, &endptr);
 591                         break;
 592                 case SDB_TYPE_STRING:
 593                         tmp.data.string = str;
 594                         break;
 595                 case SDB_TYPE_DATETIME:
 596                         {
 597                                 double datetime = strtod(str, &endptr);
 598                                 tmp.data.datetime = DOUBLE_TO_SDB_TIME(datetime);
 599                         }
 600                         break;
 601                 case SDB_TYPE_BINARY:
 602                         /* we don't support any binary information containing 0-bytes */
 603                         tmp.data.binary.length = strlen(str);
 604                         tmp.data.binary.datum = (unsigned char *)str;
 605                         break;
 606                 case SDB_TYPE_REGEX:
 607                         tmp.data.re.raw = strdup(str);
 608                         if (! tmp.data.re.raw)
 609                                 return -1;
 610                         if (regcomp(&tmp.data.re.regex, tmp.data.re.raw,
 611                                                 REG_EXTENDED | REG_ICASE | REG_NOSUB)) {
 612                                 sdb_log(SDB_LOG_ERR, "core: Failed to compile regular "
 613                                                 "expression '%s'", tmp.data.re.raw);
 614                                 free(tmp.data.re.raw);
 615                                 return -1;
 616                         }
 617                         if (! data) {
 618                                 tmp.type = SDB_TYPE_REGEX;
 619                                 sdb_data_free_datum(&tmp);
 620                         }
 621                         break;
 622                 default:
 623                         errno = EINVAL;
 624                         return -1;
 625         }
 626
 627         if ((type == SDB_TYPE_INTEGER) || (type == SDB_TYPE_DECIMAL)
 628                         || (type == SDB_TYPE_DATETIME)) {
 629                 if (errno || (str == endptr)) {
 630                         char errbuf[1024];
 631                         sdb_log(SDB_LOG_ERR, "core: Failed to parse string "
 632                                         "'%s' as numeric value (type %i): %s", str, type,
 633                                         sdb_strerror(errno, errbuf, sizeof(errbuf)));
 634                         return -1;
 635                 }
 636                 else if (endptr && (*endptr != '\0'))
 637                         sdb_log(SDB_LOG_WARNING, "core: Ignoring garbage after "
 638                                         "number while parsing numeric value (type %i): %s.",
 639                                         type, endptr);
 640         }
 641
 642         if (data) {
 643                 *data = tmp;
 644                 data->type = type;
 645         }
 646         return 0;
 647 } /* sdb_data_parse */
 648
 649 size_t
 650 sdb_data_sizeof(int type)
 651 {
 652         sdb_data_t v;
 653         if (type == SDB_TYPE_INTEGER)
 654                 return sizeof(v.data.integer);
 655         else if (type == SDB_TYPE_DECIMAL)
 656                 return sizeof(v.data.decimal);
 657         else if (type == SDB_TYPE_STRING)
 658                 return sizeof(v.data.string);
 659         else if (type == SDB_TYPE_DATETIME)
 660                 return sizeof(v.data.datetime);
 661         else if (type == SDB_TYPE_BINARY)
 662                 return sizeof(v.data.binary);
 663         else if (type == SDB_TYPE_REGEX)
 664                 return sizeof(v.data.re);
 665         return 0;
 666 } /* sdb_data_sizeof */
 667
 668 /* vim: set tw=78 sw=4 ts=4 noexpandtab : */
 669