1 /*****************************************************************************
2 * RRDtool 1.3.2 Copyright by Tobi Oetiker, 1997-2009
3 *****************************************************************************
4 * rrd_restore.c Contains logic to parse XML input and create an RRD file
6 * Copyright (C) 2008 Florian octo Forster (original libxml2 code)
7 * Copyright (C) 2008,2009 Tobias Oetiker
8 *****************************************************************************
10 *************************************************************************** */
13 #include "rrd_rpncalc.h"
18 #include <libxml/parser.h>
19 #include <libxml/xmlreader.h>
23 # include <unistd.h> /* for off_t */
25 typedef size_t ssize_t;
30 #if defined(_WIN32) && !defined(__CYGWIN__) && !defined(__CYGWIN32__)
37 #define ARRAY_LENGTH(a) (sizeof (a) / sizeof ((a)[0]))
39 static int opt_range_check = 0;
40 static int opt_force_overwrite = 0;
46 /* skip all but tags. complain if we do not get the right tag */
47 /* dept -1 causes depth to be ignored */
48 static xmlChar* get_xml_element (
49 xmlTextReaderPtr reader
52 while(xmlTextReaderRead(reader)){
55 type = xmlTextReaderNodeType(reader);
56 if (type == XML_READER_TYPE_TEXT){
58 value = xmlTextReaderValue(reader);
59 rrd_set_error("line %d: expected element but found text '%s'",
60 xmlTextReaderGetParserLineNumber(reader),value);
64 /* skip all other non-elements */
65 if (type != XML_READER_TYPE_ELEMENT && type != XML_READER_TYPE_END_ELEMENT)
68 name = xmlTextReaderName(reader);
69 if (type == XML_READER_TYPE_END_ELEMENT){
72 temp = (xmlChar*)sprintf_alloc("/%s",name);
73 temp2 = xmlStrdup(temp);
78 /* all seems well, return the happy news */
81 rrd_set_error("the xml ended while we were looking for an element");
83 } /* get_xml_element */
85 static void local_rrd_free (rrd_t *rrd)
99 static int expect_element (
100 xmlTextReaderPtr reader,
104 name = get_xml_element(reader);
107 if (xmlStrcasecmp(name,(xmlChar *)exp_name) != 0){
108 rrd_set_error("line %d: expected <%s> element but found <%s>",
109 xmlTextReaderGetParserLineNumber(reader),name,exp_name);
115 } /* expect_element */
117 static int expect_element_end (
118 xmlTextReaderPtr reader,
122 name = get_xml_element(reader);
125 if (xmlStrcasecmp(name+1,(xmlChar *)exp_name) != 0 || name[0] != '/'){
126 rrd_set_error("line %d: expected </%s> end element but found <%s>",
127 xmlTextReaderGetParserLineNumber(reader),exp_name,name);
133 } /* expect_element_end */
136 static xmlChar* get_xml_text (
137 xmlTextReaderPtr reader
140 while(xmlTextReaderRead(reader)){
146 type = xmlTextReaderNodeType(reader);
147 if (type == XML_READER_TYPE_ELEMENT){
149 name = xmlTextReaderName(reader);
150 rrd_set_error("line %d: expected a value but found an <%s> element",
151 xmlTextReaderGetParserLineNumber(reader),
156 /* skip all other non-text */
157 if (xmlTextReaderNodeType(reader) != XML_READER_TYPE_TEXT)
160 text = xmlTextReaderValue(reader);
163 while ((begin_ptr[0] != 0) && (isspace(begin_ptr[0])))
165 if (begin_ptr[0] == 0) {
167 return xmlStrdup(BAD_CAST "");
170 while ((end_ptr[0] != 0) && (!isspace(end_ptr[0])))
174 ret = xmlStrdup(begin_ptr);
178 rrd_set_error("file ended while looking for text");
183 static int get_xml_string(
184 xmlTextReaderPtr reader,
189 str = get_xml_text(reader);
191 strncpy(value,(char *)str,max_len);
200 static int get_xml_long(
201 xmlTextReaderPtr reader,
206 if ((text = get_xml_text(reader)) != NULL){
208 temp = strtol((char *)text,NULL, 0);
210 rrd_set_error("ling %d: get_xml_long from '%s' %s",
211 xmlTextReaderGetParserLineNumber(reader),
212 text,rrd_strerror(errno));
223 static int get_xml_ulong(
224 xmlTextReaderPtr reader,
225 unsigned long *value)
230 if ((text = get_xml_text(reader)) != NULL){
232 temp = strtoul((char *)text,NULL, 0);
234 rrd_set_error("ling %d: get_xml_ulong from '%s' %s",
235 xmlTextReaderGetParserLineNumber(reader),
236 text,rrd_strerror(errno));
245 } /* get_xml_ulong */
247 #ifndef TIME_T_IS_LONG
248 static int get_xml_llong(
249 xmlTextReaderPtr reader,
255 if ((text = get_xml_text(reader)) != NULL){
257 temp = strtoll((char *)text,NULL, 0);
259 rrd_set_error("ling %d: get_xml_llong from '%s' %s",
260 xmlTextReaderGetParserLineNumber(reader),
261 text,rrd_strerror(errno));
270 } /* get_xml_llong */
274 static int get_xml_double(
275 xmlTextReaderPtr reader,
281 if ((text = get_xml_text(reader))!= NULL){
282 if (xmlStrcasestr(text,(xmlChar *)"nan")){
287 else if (xmlStrcasestr(text,(xmlChar *)"-inf")){
292 else if (xmlStrcasestr(text,(xmlChar *)"+inf")
293 || xmlStrcasestr(text,(xmlChar *)"inf")){
299 temp = strtod((char *)text,NULL);
301 rrd_set_error("ling %d: get_xml_double from '%s' %s",
302 xmlTextReaderGetParserLineNumber(reader),
303 text,rrd_strerror(errno));
312 } /* get_xml_double */
315 static int value_check_range(
316 rrd_value_t *rrd_value,
317 const ds_def_t *ds_def)
322 if (opt_range_check == 0)
325 min = ds_def->par[DS_min_val].u_val;
326 max = ds_def->par[DS_max_val].u_val;
328 if (((!isnan(min)) && (*rrd_value < min))
329 || ((!isnan(max)) && (*rrd_value > max)))
333 } /* int value_check_range */
336 * Parse the <database> block within an RRA definition
339 static int parse_tag_rra_database_row(
340 xmlTextReaderPtr reader,
342 rrd_value_t *rrd_value)
344 unsigned int values_count = 0;
348 for (values_count = 0;values_count < rrd->stat_head->ds_cnt;values_count++){
349 if (expect_element(reader,"v") == 0){
350 status = get_xml_double(reader,rrd_value + values_count);
352 value_check_range(rrd_value + values_count,
353 rrd->ds_def + values_count);
358 if (expect_element(reader,"/v") == -1){
363 } /* int parse_tag_rra_database_row */
365 static int parse_tag_rra_database(
366 xmlTextReaderPtr reader,
369 rra_def_t *cur_rra_def;
370 unsigned int total_row_cnt;
376 for (i = 0; i < (((int) rrd->stat_head->rra_cnt) - 1); i++)
377 total_row_cnt += rrd->rra_def[i].row_cnt;
379 cur_rra_def = rrd->rra_def + i;
382 while ((element = get_xml_element(reader)) != NULL){
383 if (xmlStrcasecmp(element,(const xmlChar *)"row") == 0){
385 rrd_value_t *cur_rrd_value;
386 unsigned int total_values_count = rrd->stat_head->ds_cnt
387 * (total_row_cnt + 1);
389 /* Allocate space for the new values.. */
390 temp = (rrd_value_t *) realloc(rrd->rrd_value,
391 sizeof(rrd_value_t) *
394 rrd_set_error("parse_tag_rra_database: realloc failed.");
398 rrd->rrd_value = temp;
399 cur_rrd_value = rrd->rrd_value
400 + (rrd->stat_head->ds_cnt * total_row_cnt);
401 memset(cur_rrd_value, '\0',
402 sizeof(rrd_value_t) * rrd->stat_head->ds_cnt);
404 cur_rra_def->row_cnt++;
407 parse_tag_rra_database_row(reader, rrd, cur_rrd_value);
409 status = expect_element(reader,"/row");
410 } /* if (xmlStrcasecmp(element,"row")) */
412 if ( xmlStrcasecmp(element,(const xmlChar *)"/database") == 0){
417 rrd_set_error("line %d: found unexpected tag: %s",
418 xmlTextReaderGetParserLineNumber(reader),element);
427 } /* int parse_tag_rra_database */
430 * Parse the <cdp_prep> block within an RRA definition
432 static int parse_tag_rra_cdp_prep_ds_history(
433 xmlTextReaderPtr reader,
434 cdp_prep_t *cdp_prep)
436 /* Make `history_buffer' the same size as the scratch area, plus the
437 * terminating NULL byte. */
441 if ((history = get_xml_text(reader)) != NULL){
442 history_ptr = (char *) (&cdp_prep->scratch[0]);
443 for (i = 0; history[i] != '\0'; i++)
444 history_ptr[i] = (history[i] == '1') ? 1 : 0;
449 } /* int parse_tag_rra_cdp_prep_ds_history */
451 static int parse_tag_rra_cdp_prep_ds(
452 xmlTextReaderPtr reader,
454 cdp_prep_t *cdp_prep)
458 memset(cdp_prep, '\0', sizeof(cdp_prep_t));
462 if (atoi(rrd->stat_head->version) == 1) {
463 cdp_prep->scratch[CDP_primary_val].u_val = 0.0;
464 cdp_prep->scratch[CDP_secondary_val].u_val = 0.0;
467 while ((element = get_xml_element(reader)) != NULL){
468 if (xmlStrcasecmp(element, (const xmlChar *) "primary_value") == 0)
470 get_xml_double(reader,&cdp_prep->scratch[CDP_primary_val].u_val);
471 else if (xmlStrcasecmp(element, (const xmlChar *) "secondary_value") == 0)
473 get_xml_double(reader,&cdp_prep->scratch[CDP_secondary_val].u_val);
474 else if (xmlStrcasecmp(element, (const xmlChar *) "intercept") == 0)
475 status = get_xml_double(reader,
477 scratch[CDP_hw_intercept].u_val);
478 else if (xmlStrcasecmp(element, (const xmlChar *) "last_intercept") ==
481 get_xml_double(reader,
483 scratch[CDP_hw_last_intercept].u_val);
484 else if (xmlStrcasecmp(element, (const xmlChar *) "slope") == 0)
485 status = get_xml_double(reader,
486 &cdp_prep->scratch[CDP_hw_slope].
488 else if (xmlStrcasecmp(element, (const xmlChar *) "last_slope") == 0)
489 status = get_xml_double(reader,
491 scratch[CDP_hw_last_slope].u_val);
492 else if (xmlStrcasecmp(element, (const xmlChar *) "nan_count") == 0)
493 status = get_xml_ulong(reader,
495 scratch[CDP_null_count].u_cnt);
496 else if (xmlStrcasecmp(element, (const xmlChar *) "last_nan_count") ==
499 get_xml_ulong(reader,
501 scratch[CDP_last_null_count].u_cnt);
502 else if (xmlStrcasecmp(element, (const xmlChar *) "seasonal") == 0)
503 status = get_xml_double(reader,
504 &cdp_prep->scratch[CDP_hw_seasonal].
506 else if (xmlStrcasecmp(element, (const xmlChar *) "last_seasonal") ==
509 get_xml_double(reader,
510 &cdp_prep->scratch[CDP_hw_last_seasonal].
512 else if (xmlStrcasecmp(element, (const xmlChar *) "init_flag") == 0)
513 status = get_xml_ulong(reader,
515 scratch[CDP_init_seasonal].u_cnt);
516 else if (xmlStrcasecmp(element, (const xmlChar *) "history") == 0)
517 status = parse_tag_rra_cdp_prep_ds_history(reader, cdp_prep);
518 else if (xmlStrcasecmp(element, (const xmlChar *) "value") == 0)
519 status = get_xml_double(reader,
520 &cdp_prep->scratch[CDP_val].u_val);
521 else if (xmlStrcasecmp(element,
522 (const xmlChar *) "unknown_datapoints") == 0)
523 status = get_xml_ulong(reader,
525 scratch[CDP_unkn_pdp_cnt].u_cnt);
526 else if (xmlStrcasecmp(element,
527 (const xmlChar *) "/ds") == 0){
532 rrd_set_error("parse_tag_rra_cdp_prep: Unknown tag: %s",
542 status = expect_element_end(reader,(char *)element);
548 } /* int parse_tag_rra_cdp_prep_ds */
550 static int parse_tag_rra_cdp_prep(
551 xmlTextReaderPtr reader,
553 cdp_prep_t *cdp_prep)
557 unsigned int ds_count;
560 for ( ds_count = 0; ds_count < rrd->stat_head->ds_cnt;ds_count++){
561 if (expect_element(reader,"ds") == 0) {
562 status = parse_tag_rra_cdp_prep_ds(reader, rrd,
563 cdp_prep + ds_count);
572 status = expect_element(reader,"/cdp_prep");
574 } /* int parse_tag_rra_cdp_prep */
577 * Parse the <params> block within an RRA definition
579 static int parse_tag_rra_params(
580 xmlTextReaderPtr reader,
587 while ((element = get_xml_element(reader)) != NULL){
589 * Parameters for CF_HWPREDICT
591 if (xmlStrcasecmp(element, (const xmlChar *) "hw_alpha") == 0)
592 status = get_xml_double(reader,
593 &rra_def->par[RRA_hw_alpha].u_val);
594 else if (xmlStrcasecmp(element, (const xmlChar *) "hw_beta") == 0)
595 status = get_xml_double(reader,
596 &rra_def->par[RRA_hw_beta].u_val);
597 else if (xmlStrcasecmp(element,
598 (const xmlChar *) "dependent_rra_idx") == 0)
599 status = get_xml_ulong(reader,
601 par[RRA_dependent_rra_idx].u_cnt);
603 * Parameters for CF_SEASONAL and CF_DEVSEASONAL
605 else if (xmlStrcasecmp(element, (const xmlChar *) "seasonal_gamma") ==
608 get_xml_double(reader,
609 &rra_def->par[RRA_seasonal_gamma].u_val);
610 else if (xmlStrcasecmp
611 (element, (const xmlChar *) "seasonal_smooth_idx") == 0)
613 get_xml_ulong(reader,
615 par[RRA_seasonal_smooth_idx].u_cnt);
616 else if (xmlStrcasecmp(element, (const xmlChar *) "smoothing_window")
619 get_xml_double(reader,
621 par[RRA_seasonal_smoothing_window].
623 /* else if (dependent_rra_idx) ...; */
625 * Parameters for CF_FAILURES
627 else if (xmlStrcasecmp(element, (const xmlChar *) "delta_pos") == 0)
628 status = get_xml_double(reader,
629 &rra_def->par[RRA_delta_pos].u_val);
630 else if (xmlStrcasecmp(element, (const xmlChar *) "delta_neg") == 0)
631 status = get_xml_double(reader,
632 &rra_def->par[RRA_delta_neg].u_val);
633 else if (xmlStrcasecmp(element, (const xmlChar *) "window_len") == 0)
634 status = get_xml_ulong(reader,
635 &rra_def->par[RRA_window_len].
637 else if (xmlStrcasecmp(element, (const xmlChar *) "failure_threshold")
640 get_xml_ulong(reader,
642 par[RRA_failure_threshold].u_cnt);
644 * Parameters for CF_AVERAGE, CF_MAXIMUM, CF_MINIMUM, and CF_LAST
646 else if (xmlStrcasecmp(element, (const xmlChar *) "xff") == 0)
647 status = get_xml_double(reader,
648 &rra_def->par[RRA_cdp_xff_val].
651 * Compatibility code for 1.0.49
653 else if (xmlStrcasecmp(element, (const xmlChar *) "value") == 0) { /* {{{ */
656 for (i=0;i<ARRAY_LENGTH(rra_def->par);i++){
657 if ((i == RRA_dependent_rra_idx)
658 || (i == RRA_seasonal_smooth_idx)
659 || (i == RRA_failure_threshold))
660 status = get_xml_ulong(reader,
664 status = get_xml_double(reader,
665 &rra_def->par[i].u_val);
669 if ( i-1 < ARRAY_LENGTH(rra_def->par)){
670 status = expect_element(reader,"/value");
672 status = expect_element(reader,"value");
680 else if (xmlStrcasecmp(element,(const xmlChar *) "/params") == 0){
685 rrd_set_error("line %d: parse_tag_rra_params: Unknown tag: %s",
686 xmlTextReaderGetParserLineNumber(reader),element);
689 status = expect_element_end(reader,(char *)element);
695 } /* int parse_tag_rra_params */
698 * Parse an RRA definition
700 static int parse_tag_rra_cf(
701 xmlTextReaderPtr reader,
706 status = get_xml_string(reader,
707 rra_def->cf_nam, sizeof(rra_def->cf_nam));
711 status = cf_conv(rra_def->cf_nam);
713 rrd_set_error("parse_tag_rra_cf: Unknown consolidation function: %s",
719 } /* int parse_tag_rra_cf */
721 static int parse_tag_rra(
722 xmlTextReaderPtr reader,
728 rra_def_t *cur_rra_def;
729 cdp_prep_t *cur_cdp_prep;
730 rra_ptr_t *cur_rra_ptr;
732 /* Allocate more rra_def space for this RRA */
736 temp = (rra_def_t *) realloc(rrd->rra_def,
738 (rrd->stat_head->rra_cnt + 1));
740 rrd_set_error("parse_tag_rra: realloc failed.");
744 cur_rra_def = rrd->rra_def + rrd->stat_head->rra_cnt;
745 memset(cur_rra_def, '\0', sizeof(rra_def_t));
748 /* allocate cdp_prep_t */
752 temp = (cdp_prep_t *) realloc(rrd->cdp_prep, sizeof(cdp_prep_t)
753 * rrd->stat_head->ds_cnt
754 * (rrd->stat_head->rra_cnt + 1));
756 rrd_set_error("parse_tag_rra: realloc failed.");
759 rrd->cdp_prep = temp;
760 cur_cdp_prep = rrd->cdp_prep
761 + (rrd->stat_head->ds_cnt * rrd->stat_head->rra_cnt);
762 memset(cur_cdp_prep, '\0',
763 sizeof(cdp_prep_t) * rrd->stat_head->ds_cnt);
766 /* allocate rra_ptr_t */
770 temp = (rra_ptr_t *) realloc(rrd->rra_ptr,
772 (rrd->stat_head->rra_cnt + 1));
774 rrd_set_error("parse_tag_rra: realloc failed.");
778 cur_rra_ptr = rrd->rra_ptr + rrd->stat_head->rra_cnt;
779 memset(cur_rra_ptr, '\0', sizeof(rra_ptr_t));
782 /* All space successfully allocated, increment number of RRAs. */
783 rrd->stat_head->rra_cnt++;
786 while ((element = get_xml_element(reader)) != NULL){
787 if (xmlStrcasecmp(element, (const xmlChar *) "cf") == 0)
788 status = parse_tag_rra_cf(reader, cur_rra_def);
789 else if (xmlStrcasecmp(element, (const xmlChar *) "pdp_per_row") == 0)
790 status = get_xml_ulong(reader,
791 &cur_rra_def->pdp_cnt);
792 else if (atoi(rrd->stat_head->version) == 1
793 && xmlStrcasecmp(element, (const xmlChar *) "xff") == 0)
794 status = get_xml_double(reader,
795 (double *) &cur_rra_def->
796 par[RRA_cdp_xff_val].u_val);
797 else if (atoi(rrd->stat_head->version) >= 2
798 && xmlStrcasecmp(element, (const xmlChar *) "params") == 0){
800 status = parse_tag_rra_params(reader, cur_rra_def);
806 else if (xmlStrcasecmp(element, (const xmlChar *) "cdp_prep") == 0){
808 status = parse_tag_rra_cdp_prep(reader, rrd, cur_cdp_prep);
814 else if (xmlStrcasecmp(element, (const xmlChar *) "database") == 0){
816 status = parse_tag_rra_database(reader, rrd);
822 else if (xmlStrcasecmp(element,(const xmlChar *) "/rra") == 0){
827 rrd_set_error("line %d: parse_tag_rra: Unknown tag: %s",
828 xmlTextReaderGetParserLineNumber(reader), element);
835 status = expect_element_end(reader,(char *)element);
841 /* Set the RRA pointer to a random location */
842 cur_rra_ptr->cur_row = rrd_random() % cur_rra_def->row_cnt;
845 } /* int parse_tag_rra */
848 * Parse a DS definition
850 static int parse_tag_ds_cdef(
851 xmlTextReaderPtr reader,
856 cdef = get_xml_text(reader);
858 /* We're always working on the last DS that has been added to the structure
859 * when we get here */
860 parseCDEF_DS((char *)cdef, rrd, rrd->stat_head->ds_cnt - 1);
862 if (rrd_test_error())
868 } /* int parse_tag_ds_cdef */
870 static int parse_tag_ds_type(
871 xmlTextReaderPtr reader,
875 dst = (char *)get_xml_text(reader);
878 status = dst_conv(dst);
880 rrd_set_error("parse_tag_ds_type: Unknown data source type: %s",
884 strncpy(ds_def->dst,dst,sizeof(ds_def->dst)-1);
885 ds_def->dst[sizeof(ds_def->dst)-1] = '\0';
890 } /* int parse_tag_ds_type */
892 static int parse_tag_ds(
893 xmlTextReaderPtr reader,
899 ds_def_t *cur_ds_def;
900 pdp_prep_t *cur_pdp_prep;
903 * If there are DS definitions after RRA definitions the number of values,
904 * cdp_prep areas and so on will be calculated wrong. Thus, enforce a
905 * specific order in this case.
907 if (rrd->stat_head->rra_cnt > 0) {
908 rrd_set_error("parse_tag_ds: All data source definitions MUST "
909 "precede the RRA definitions!");
913 /* Allocate space for the new DS definition */
917 temp = (ds_def_t *) realloc(rrd->ds_def,
919 (rrd->stat_head->ds_cnt + 1));
921 rrd_set_error("parse_tag_ds: malloc failed.");
925 cur_ds_def = rrd->ds_def + rrd->stat_head->ds_cnt;
926 memset(cur_ds_def, '\0', sizeof(ds_def_t));
929 /* Allocate pdp_prep space for the new DS definition */
933 temp = (pdp_prep_t *) realloc(rrd->pdp_prep,
935 (rrd->stat_head->ds_cnt + 1));
937 rrd_set_error("parse_tag_ds: malloc failed.");
940 rrd->pdp_prep = temp;
941 cur_pdp_prep = rrd->pdp_prep + rrd->stat_head->ds_cnt;
942 memset(cur_pdp_prep, '\0', sizeof(pdp_prep_t));
945 /* All allocations successful, let's increment the number of DSes. */
946 rrd->stat_head->ds_cnt++;
949 while ((element = get_xml_element(reader)) != NULL){
950 if (xmlStrcasecmp(element, (const xmlChar *) "name") == 0){
951 status = get_xml_string(reader,cur_ds_def->ds_nam,sizeof(cur_ds_def->ds_nam));
953 else if (xmlStrcasecmp(element, (const xmlChar *) "type") == 0)
954 status = parse_tag_ds_type(reader, cur_ds_def);
955 else if (xmlStrcasecmp(element,
956 (const xmlChar *) "minimal_heartbeat") == 0)
957 status = get_xml_ulong(reader,
958 &cur_ds_def->par[DS_mrhb_cnt].
960 else if (xmlStrcasecmp(element, (const xmlChar *) "min") == 0)
961 status = get_xml_double(reader,
962 &cur_ds_def->par[DS_min_val].u_val);
963 else if (xmlStrcasecmp(element, (const xmlChar *) "max") == 0)
964 status = get_xml_double(reader,
965 &cur_ds_def->par[DS_max_val].u_val);
966 else if (xmlStrcasecmp(element, (const xmlChar *) "cdef") == 0)
967 status = parse_tag_ds_cdef(reader, rrd);
968 else if (xmlStrcasecmp(element, (const xmlChar *) "last_ds") == 0)
969 status = get_xml_string(reader,
970 cur_pdp_prep->last_ds,
971 sizeof(cur_pdp_prep->last_ds));
972 else if (xmlStrcasecmp(element, (const xmlChar *) "value") == 0)
973 status = get_xml_double(reader,
974 &cur_pdp_prep->scratch[PDP_val].
976 else if (xmlStrcasecmp(element, (const xmlChar *) "unknown_sec") == 0)
977 status = get_xml_ulong(reader,
979 scratch[PDP_unkn_sec_cnt].u_cnt);
980 else if (xmlStrcasecmp(element, (const xmlChar *) "/ds") == 0) {
985 rrd_set_error("parse_tag_ds: Unknown tag: %s", element);
992 status = expect_element_end(reader,(char *)element);
999 } /* int parse_tag_ds */
1004 static int parse_tag_rrd(
1005 xmlTextReaderPtr reader,
1012 while ((element = get_xml_element(reader)) != NULL ){
1013 if (xmlStrcasecmp(element, (const xmlChar *) "version") == 0)
1014 status = get_xml_string(reader,
1015 rrd->stat_head->version,
1016 sizeof(rrd->stat_head->version));
1017 else if (xmlStrcasecmp(element, (const xmlChar *) "step") == 0)
1018 status = get_xml_ulong(reader,
1019 &rrd->stat_head->pdp_step);
1020 else if (xmlStrcasecmp(element, (const xmlChar *) "lastupdate") == 0) {
1021 #ifdef TIME_T_IS_LONG
1022 status = get_xml_long(reader, &rrd->live_head->last_up);
1024 #ifdef TIME_T_IS_LONG_LONG
1025 status = get_xml_llong(reader, &rrd->live_head->last_up);
1027 if (sizeof(time_t) == sizeof(long)) {
1028 status = get_xml_long(reader,
1029 (long *)&rrd->live_head->last_up);
1031 else if (sizeof(time_t) == sizeof(long long)) {
1032 status = get_xml_llong(reader,
1033 (long long *)&rrd->live_head->last_up);
1038 else if (xmlStrcasecmp(element, (const xmlChar *) "ds") == 0){
1040 status = parse_tag_ds(reader, rrd);
1041 /* as we come back the </ds> tag is already gone */
1047 else if (xmlStrcasecmp(element, (const xmlChar *) "rra") == 0){
1049 status = parse_tag_rra(reader, rrd);
1055 else if (xmlStrcasecmp(element, (const xmlChar *) "/rrd") == 0) {
1060 rrd_set_error("parse_tag_rrd: Unknown tag: %s", element);
1068 status = expect_element_end(reader,(char *)element);
1074 } /* int parse_tag_rrd */
1076 static rrd_t *parse_file(
1077 const char *filename)
1079 xmlTextReaderPtr reader;
1084 reader = xmlNewTextReaderFilename(filename);
1085 if (reader == NULL) {
1086 rrd_set_error("Could not create xml reader for: %s",filename);
1090 if (expect_element(reader,"rrd") != 0) {
1091 xmlFreeTextReader(reader);
1095 rrd = (rrd_t *) malloc(sizeof(rrd_t));
1097 rrd_set_error("parse_file: malloc failed.");
1098 xmlFreeTextReader(reader);
1101 memset(rrd, '\0', sizeof(rrd_t));
1103 rrd->stat_head = (stat_head_t *) malloc(sizeof(stat_head_t));
1104 if (rrd->stat_head == NULL) {
1105 rrd_set_error("parse_tag_rrd: malloc failed.");
1106 xmlFreeTextReader(reader);
1110 memset(rrd->stat_head, '\0', sizeof(stat_head_t));
1112 strncpy(rrd->stat_head->cookie, "RRD", sizeof(rrd->stat_head->cookie));
1113 rrd->stat_head->float_cookie = FLOAT_COOKIE;
1115 rrd->live_head = (live_head_t *) malloc(sizeof(live_head_t));
1116 if (rrd->live_head == NULL) {
1117 rrd_set_error("parse_tag_rrd: malloc failed.");
1118 xmlFreeTextReader(reader);
1119 free(rrd->stat_head);
1123 memset(rrd->live_head, '\0', sizeof(live_head_t));
1125 status = parse_tag_rrd(reader, rrd);
1127 xmlFreeTextReader(reader);
1130 local_rrd_free(rrd);
1135 } /* rrd_t *parse_file */
1137 static int write_file(
1138 const char *file_name,
1143 unsigned int rra_offset;
1145 if (strcmp("-", file_name) == 0)
1148 int fd_flags = O_WRONLY | O_CREAT;
1151 #if defined(_WIN32) && !defined(__CYGWIN__) && !defined(__CYGWIN32__)
1152 fd_flags |= O_BINARY;
1155 if (opt_force_overwrite == 0)
1158 fd = open(file_name, fd_flags, 0666);
1160 rrd_set_error("creating '%s': %s", file_name,
1161 rrd_strerror(errno));
1165 fh = fdopen(fd, "wb");
1167 rrd_set_error("fdopen failed: %s", rrd_strerror(errno));
1172 if (atoi(rrd->stat_head->version) < 3) {
1173 /* we output 3 or higher */
1174 strcpy(rrd->stat_head->version, "0003");
1176 fwrite(rrd->stat_head, sizeof(stat_head_t), 1, fh);
1177 fwrite(rrd->ds_def, sizeof(ds_def_t), rrd->stat_head->ds_cnt, fh);
1178 fwrite(rrd->rra_def, sizeof(rra_def_t), rrd->stat_head->rra_cnt, fh);
1179 fwrite(rrd->live_head, sizeof(live_head_t), 1, fh);
1180 fwrite(rrd->pdp_prep, sizeof(pdp_prep_t), rrd->stat_head->ds_cnt, fh);
1181 fwrite(rrd->cdp_prep, sizeof(cdp_prep_t),
1182 rrd->stat_head->rra_cnt * rrd->stat_head->ds_cnt, fh);
1183 fwrite(rrd->rra_ptr, sizeof(rra_ptr_t), rrd->stat_head->rra_cnt, fh);
1185 /* calculate the number of rrd_values to dump */
1187 for (i = 0; i < rrd->stat_head->rra_cnt; i++) {
1188 unsigned long num_rows = rrd->rra_def[i].row_cnt;
1189 unsigned long cur_row = rrd->rra_ptr[i].cur_row;
1190 unsigned long ds_cnt = rrd->stat_head->ds_cnt;
1192 fwrite(rrd->rrd_value +
1193 (rra_offset + num_rows - 1 - cur_row) * ds_cnt,
1194 sizeof(rrd_value_t), (cur_row + 1) * ds_cnt, fh);
1196 fwrite(rrd->rrd_value + rra_offset * ds_cnt,
1197 sizeof(rrd_value_t), (num_rows - 1 - cur_row) * ds_cnt, fh);
1199 rra_offset += num_rows;
1202 /* lets see if we had an error */
1204 rrd_set_error("a file error occurred while creating '%s'", file_name);
1211 } /* int write_file */
1219 /* init rrd clean */
1221 opterr = 0; /* initialize getopt */
1224 int option_index = 0;
1225 static struct option long_options[] = {
1226 {"range-check", no_argument, 0, 'r'},
1227 {"force-overwrite", no_argument, 0, 'f'},
1231 opt = getopt_long(argc, argv, "rf", long_options, &option_index);
1238 opt_range_check = 1;
1242 opt_force_overwrite = 1;
1246 rrd_set_error("usage rrdtool %s [--range-check|-r] "
1247 "[--force-overwrite/-f] file.xml file.rrd",
1254 if ((argc - optind) != 2) {
1255 rrd_set_error("usage rrdtool %s [--range-check/-r] "
1256 "[--force-overwrite/-f] file.xml file.rrd", argv[0]);
1260 old_locale = setlocale(LC_NUMERIC, "C");
1262 rrd = parse_file(argv[optind]);
1264 setlocale(LC_NUMERIC, old_locale);
1269 if (write_file(argv[optind + 1], rrd) != 0) {
1270 local_rrd_free(rrd);
1273 local_rrd_free(rrd);
1277 } /* int rrd_restore */
1279 /* vim: set sw=2 sts=2 ts=8 et fdm=marker : */