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 *************************************************************************** */
15 #include <libxml/parser.h>
16 #include <libxml/xmlreader.h>
20 # include <unistd.h> /* for off_t */
22 typedef size_t ssize_t;
27 #if defined(_WIN32) && !defined(__CYGWIN__) && !defined(__CYGWIN32__)
34 #include "rrd_rpncalc.h"
36 #define ARRAY_LENGTH(a) (sizeof (a) / sizeof ((a)[0]))
38 static int opt_range_check = 0;
39 static int opt_force_overwrite = 0;
45 /* skip all but tags. complain if we do not get the right tag */
46 /* dept -1 causes depth to be ignored */
47 static xmlChar* get_xml_element (
48 xmlTextReaderPtr reader
51 while(xmlTextReaderRead(reader)){
54 type = xmlTextReaderNodeType(reader);
55 if (type == XML_READER_TYPE_TEXT){
57 value = xmlTextReaderValue(reader);
58 rrd_set_error("line %d: expected element but found text '%s'",
59 xmlTextReaderGetParserLineNumber(reader),value);
63 /* skip all other non-elements */
64 if (type != XML_READER_TYPE_ELEMENT && type != XML_READER_TYPE_END_ELEMENT)
67 name = xmlTextReaderName(reader);
68 if (type == XML_READER_TYPE_END_ELEMENT){
71 temp = (xmlChar*)sprintf_alloc("/%s",name);
72 temp2 = xmlStrdup(temp);
77 /* all seems well, return the happy news */
80 rrd_set_error("the xml ended while we were looking for an element");
82 } /* get_xml_element */
84 static void local_rrd_free (rrd_t *rrd)
98 static int expect_element (
99 xmlTextReaderPtr reader,
103 name = get_xml_element(reader);
106 if (xmlStrcasecmp(name,(xmlChar *)exp_name) != 0){
107 rrd_set_error("line %d: expected <%s> element but found <%s>",
108 xmlTextReaderGetParserLineNumber(reader),name,exp_name);
114 } /* expect_element */
116 static int expect_element_end (
117 xmlTextReaderPtr reader,
121 name = get_xml_element(reader);
124 if (xmlStrcasecmp(name+1,(xmlChar *)exp_name) != 0 || name[0] != '/'){
125 rrd_set_error("line %d: expected </%s> end element but found <%s>",
126 xmlTextReaderGetParserLineNumber(reader),exp_name,name);
132 } /* expect_element_end */
135 static xmlChar* get_xml_text (
136 xmlTextReaderPtr reader
139 while(xmlTextReaderRead(reader)){
145 type = xmlTextReaderNodeType(reader);
146 if (type == XML_READER_TYPE_ELEMENT){
148 name = xmlTextReaderName(reader);
149 rrd_set_error("line %d: expected a value but found an <%s> element",
150 xmlTextReaderGetParserLineNumber(reader),
155 /* skip all other non-text */
156 if (xmlTextReaderNodeType(reader) != XML_READER_TYPE_TEXT)
159 text = xmlTextReaderValue(reader);
162 while ((begin_ptr[0] != 0) && (isspace(begin_ptr[0])))
164 if (begin_ptr[0] == 0) {
166 return xmlStrdup(BAD_CAST "");
169 while ((end_ptr[0] != 0) && (!isspace(end_ptr[0])))
173 ret = xmlStrdup(begin_ptr);
177 rrd_set_error("file ended while looking for text");
182 static int get_xml_string(
183 xmlTextReaderPtr reader,
188 str = get_xml_text(reader);
190 strncpy(value,(char *)str,max_len);
199 static int get_xml_long(
200 xmlTextReaderPtr reader,
205 if ((text = get_xml_text(reader)) != NULL){
207 temp = strtol((char *)text,NULL, 0);
209 rrd_set_error("ling %d: get_xml_long from '%s' %s",
210 xmlTextReaderGetParserLineNumber(reader),
211 text,rrd_strerror(errno));
222 static int get_xml_ulong(
223 xmlTextReaderPtr reader,
224 unsigned long *value)
229 if ((text = get_xml_text(reader)) != NULL){
231 temp = strtoul((char *)text,NULL, 0);
233 rrd_set_error("ling %d: get_xml_ulong from '%s' %s",
234 xmlTextReaderGetParserLineNumber(reader),
235 text,rrd_strerror(errno));
244 } /* get_xml_ulong */
246 #ifndef TIME_T_IS_LONG
247 static int get_xml_llong(
248 xmlTextReaderPtr reader,
254 if ((text = get_xml_text(reader)) != NULL){
256 temp = strtoll((char *)text,NULL, 0);
258 rrd_set_error("ling %d: get_xml_llong from '%s' %s",
259 xmlTextReaderGetParserLineNumber(reader),
260 text,rrd_strerror(errno));
269 } /* get_xml_llong */
273 static int get_xml_double(
274 xmlTextReaderPtr reader,
280 if ((text = (char *)get_xml_text(reader))!= NULL){
283 *c=tolower((unsigned char)(*c));
286 if (xmlStrcasestr(text,(xmlChar *)"nan")){
291 else if (xmlStrcasestr(text,(xmlChar *)"-inf")){
296 else if (xmlStrcasestr(text,(xmlChar *)"+inf")
297 || xmlStrcasestr(text,(xmlChar *)"inf")){
303 temp = strtod((char *)text,NULL);
305 rrd_set_error("ling %d: get_xml_double from '%s' %s",
306 xmlTextReaderGetParserLineNumber(reader),
307 text,rrd_strerror(errno));
316 } /* get_xml_double */
319 static int value_check_range(
320 rrd_value_t *rrd_value,
321 const ds_def_t *ds_def)
326 if (opt_range_check == 0)
329 min = ds_def->par[DS_min_val].u_val;
330 max = ds_def->par[DS_max_val].u_val;
332 if (((!isnan(min)) && (*rrd_value < min))
333 || ((!isnan(max)) && (*rrd_value > max)))
337 } /* int value_check_range */
340 * Parse the <database> block within an RRA definition
343 static int parse_tag_rra_database_row(
344 xmlTextReaderPtr reader,
346 rrd_value_t *rrd_value)
348 unsigned int values_count = 0;
352 for (values_count = 0;values_count < rrd->stat_head->ds_cnt;values_count++){
353 if (expect_element(reader,"v") == 0){
354 status = get_xml_double(reader,rrd_value + values_count);
356 value_check_range(rrd_value + values_count,
357 rrd->ds_def + values_count);
362 if (expect_element(reader,"/v") == -1){
367 } /* int parse_tag_rra_database_row */
369 static int parse_tag_rra_database(
370 xmlTextReaderPtr reader,
373 rra_def_t *cur_rra_def;
374 unsigned int total_row_cnt;
380 for (i = 0; i < (((int) rrd->stat_head->rra_cnt) - 1); i++)
381 total_row_cnt += rrd->rra_def[i].row_cnt;
383 cur_rra_def = rrd->rra_def + i;
386 while ((element = get_xml_element(reader)) != NULL){
387 if (xmlStrcasecmp(element,(const xmlChar *)"row") == 0){
389 rrd_value_t *cur_rrd_value;
390 unsigned int total_values_count = rrd->stat_head->ds_cnt
391 * (total_row_cnt + 1);
393 /* Allocate space for the new values.. */
394 temp = (rrd_value_t *) realloc(rrd->rrd_value,
395 sizeof(rrd_value_t) *
398 rrd_set_error("parse_tag_rra_database: realloc failed.");
402 rrd->rrd_value = temp;
403 cur_rrd_value = rrd->rrd_value
404 + (rrd->stat_head->ds_cnt * total_row_cnt);
405 memset(cur_rrd_value, '\0',
406 sizeof(rrd_value_t) * rrd->stat_head->ds_cnt);
408 cur_rra_def->row_cnt++;
411 parse_tag_rra_database_row(reader, rrd, cur_rrd_value);
413 status = expect_element(reader,"/row");
414 } /* if (xmlStrcasecmp(element,"row")) */
416 if ( xmlStrcasecmp(element,(const xmlChar *)"/database") == 0){
421 rrd_set_error("line %d: found unexpected tag: %s",
422 xmlTextReaderGetParserLineNumber(reader),element);
431 } /* int parse_tag_rra_database */
434 * Parse the <cdp_prep> block within an RRA definition
436 static int parse_tag_rra_cdp_prep_ds_history(
437 xmlTextReaderPtr reader,
438 cdp_prep_t *cdp_prep)
440 /* Make `history_buffer' the same size as the scratch area, plus the
441 * terminating NULL byte. */
445 if ((history = get_xml_text(reader)) != NULL){
446 history_ptr = (char *) (&cdp_prep->scratch[0]);
447 for (i = 0; history[i] != '\0'; i++)
448 history_ptr[i] = (history[i] == '1') ? 1 : 0;
453 } /* int parse_tag_rra_cdp_prep_ds_history */
455 static int parse_tag_rra_cdp_prep_ds(
456 xmlTextReaderPtr reader,
458 cdp_prep_t *cdp_prep)
462 memset(cdp_prep, '\0', sizeof(cdp_prep_t));
466 if (atoi(rrd->stat_head->version) == 1) {
467 cdp_prep->scratch[CDP_primary_val].u_val = 0.0;
468 cdp_prep->scratch[CDP_secondary_val].u_val = 0.0;
471 while ((element = get_xml_element(reader)) != NULL){
472 if (xmlStrcasecmp(element, (const xmlChar *) "primary_value") == 0)
474 get_xml_double(reader,&cdp_prep->scratch[CDP_primary_val].u_val);
475 else if (xmlStrcasecmp(element, (const xmlChar *) "secondary_value") == 0)
477 get_xml_double(reader,&cdp_prep->scratch[CDP_secondary_val].u_val);
478 else if (xmlStrcasecmp(element, (const xmlChar *) "intercept") == 0)
479 status = get_xml_double(reader,
481 scratch[CDP_hw_intercept].u_val);
482 else if (xmlStrcasecmp(element, (const xmlChar *) "last_intercept") ==
485 get_xml_double(reader,
487 scratch[CDP_hw_last_intercept].u_val);
488 else if (xmlStrcasecmp(element, (const xmlChar *) "slope") == 0)
489 status = get_xml_double(reader,
490 &cdp_prep->scratch[CDP_hw_slope].
492 else if (xmlStrcasecmp(element, (const xmlChar *) "last_slope") == 0)
493 status = get_xml_double(reader,
495 scratch[CDP_hw_last_slope].u_val);
496 else if (xmlStrcasecmp(element, (const xmlChar *) "nan_count") == 0)
497 status = get_xml_ulong(reader,
499 scratch[CDP_null_count].u_cnt);
500 else if (xmlStrcasecmp(element, (const xmlChar *) "last_nan_count") ==
503 get_xml_ulong(reader,
505 scratch[CDP_last_null_count].u_cnt);
506 else if (xmlStrcasecmp(element, (const xmlChar *) "seasonal") == 0)
507 status = get_xml_double(reader,
508 &cdp_prep->scratch[CDP_hw_seasonal].
510 else if (xmlStrcasecmp(element, (const xmlChar *) "last_seasonal") ==
513 get_xml_double(reader,
514 &cdp_prep->scratch[CDP_hw_last_seasonal].
516 else if (xmlStrcasecmp(element, (const xmlChar *) "init_flag") == 0)
517 status = get_xml_ulong(reader,
519 scratch[CDP_init_seasonal].u_cnt);
520 else if (xmlStrcasecmp(element, (const xmlChar *) "history") == 0)
521 status = parse_tag_rra_cdp_prep_ds_history(reader, cdp_prep);
522 else if (xmlStrcasecmp(element, (const xmlChar *) "value") == 0)
523 status = get_xml_double(reader,
524 &cdp_prep->scratch[CDP_val].u_val);
525 else if (xmlStrcasecmp(element,
526 (const xmlChar *) "unknown_datapoints") == 0)
527 status = get_xml_ulong(reader,
529 scratch[CDP_unkn_pdp_cnt].u_cnt);
530 else if (xmlStrcasecmp(element,
531 (const xmlChar *) "/ds") == 0){
536 rrd_set_error("parse_tag_rra_cdp_prep: Unknown tag: %s",
546 status = expect_element_end(reader,(char *)element);
552 } /* int parse_tag_rra_cdp_prep_ds */
554 static int parse_tag_rra_cdp_prep(
555 xmlTextReaderPtr reader,
557 cdp_prep_t *cdp_prep)
561 unsigned int ds_count;
564 for ( ds_count = 0; ds_count < rrd->stat_head->ds_cnt;ds_count++){
565 if (expect_element(reader,"ds") == 0) {
566 status = parse_tag_rra_cdp_prep_ds(reader, rrd,
567 cdp_prep + ds_count);
576 status = expect_element(reader,"/cdp_prep");
578 } /* int parse_tag_rra_cdp_prep */
581 * Parse the <params> block within an RRA definition
583 static int parse_tag_rra_params(
584 xmlTextReaderPtr reader,
591 while ((element = get_xml_element(reader)) != NULL){
593 * Parameters for CF_HWPREDICT
595 if (xmlStrcasecmp(element, (const xmlChar *) "hw_alpha") == 0)
596 status = get_xml_double(reader,
597 &rra_def->par[RRA_hw_alpha].u_val);
598 else if (xmlStrcasecmp(element, (const xmlChar *) "hw_beta") == 0)
599 status = get_xml_double(reader,
600 &rra_def->par[RRA_hw_beta].u_val);
601 else if (xmlStrcasecmp(element,
602 (const xmlChar *) "dependent_rra_idx") == 0)
603 status = get_xml_ulong(reader,
605 par[RRA_dependent_rra_idx].u_cnt);
607 * Parameters for CF_SEASONAL and CF_DEVSEASONAL
609 else if (xmlStrcasecmp(element, (const xmlChar *) "seasonal_gamma") ==
612 get_xml_double(reader,
613 &rra_def->par[RRA_seasonal_gamma].u_val);
614 else if (xmlStrcasecmp
615 (element, (const xmlChar *) "seasonal_smooth_idx") == 0)
617 get_xml_ulong(reader,
619 par[RRA_seasonal_smooth_idx].u_cnt);
620 else if (xmlStrcasecmp(element, (const xmlChar *) "smoothing_window")
623 get_xml_double(reader,
625 par[RRA_seasonal_smoothing_window].
627 /* else if (dependent_rra_idx) ...; */
629 * Parameters for CF_FAILURES
631 else if (xmlStrcasecmp(element, (const xmlChar *) "delta_pos") == 0)
632 status = get_xml_double(reader,
633 &rra_def->par[RRA_delta_pos].u_val);
634 else if (xmlStrcasecmp(element, (const xmlChar *) "delta_neg") == 0)
635 status = get_xml_double(reader,
636 &rra_def->par[RRA_delta_neg].u_val);
637 else if (xmlStrcasecmp(element, (const xmlChar *) "window_len") == 0)
638 status = get_xml_ulong(reader,
639 &rra_def->par[RRA_window_len].
641 else if (xmlStrcasecmp(element, (const xmlChar *) "failure_threshold")
644 get_xml_ulong(reader,
646 par[RRA_failure_threshold].u_cnt);
648 * Parameters for CF_AVERAGE, CF_MAXIMUM, CF_MINIMUM, and CF_LAST
650 else if (xmlStrcasecmp(element, (const xmlChar *) "xff") == 0)
651 status = get_xml_double(reader,
652 &rra_def->par[RRA_cdp_xff_val].
655 * Compatibility code for 1.0.49
657 else if (xmlStrcasecmp(element, (const xmlChar *) "value") == 0) { /* {{{ */
660 for (i=0;i<ARRAY_LENGTH(rra_def->par);i++){
661 if ((i == RRA_dependent_rra_idx)
662 || (i == RRA_seasonal_smooth_idx)
663 || (i == RRA_failure_threshold))
664 status = get_xml_ulong(reader,
668 status = get_xml_double(reader,
669 &rra_def->par[i].u_val);
673 if ( i-1 < ARRAY_LENGTH(rra_def->par)){
674 status = expect_element(reader,"/value");
676 status = expect_element(reader,"value");
684 else if (xmlStrcasecmp(element,(const xmlChar *) "/params") == 0){
689 rrd_set_error("line %d: parse_tag_rra_params: Unknown tag: %s",
690 xmlTextReaderGetParserLineNumber(reader),element);
693 status = expect_element_end(reader,(char *)element);
699 } /* int parse_tag_rra_params */
702 * Parse an RRA definition
704 static int parse_tag_rra_cf(
705 xmlTextReaderPtr reader,
710 status = get_xml_string(reader,
711 rra_def->cf_nam, sizeof(rra_def->cf_nam));
715 status = cf_conv(rra_def->cf_nam);
717 rrd_set_error("parse_tag_rra_cf: Unknown consolidation function: %s",
723 } /* int parse_tag_rra_cf */
725 static int parse_tag_rra(
726 xmlTextReaderPtr reader,
732 rra_def_t *cur_rra_def;
733 cdp_prep_t *cur_cdp_prep;
734 rra_ptr_t *cur_rra_ptr;
736 /* Allocate more rra_def space for this RRA */
740 temp = (rra_def_t *) realloc(rrd->rra_def,
742 (rrd->stat_head->rra_cnt + 1));
744 rrd_set_error("parse_tag_rra: realloc failed.");
748 cur_rra_def = rrd->rra_def + rrd->stat_head->rra_cnt;
749 memset(cur_rra_def, '\0', sizeof(rra_def_t));
752 /* allocate cdp_prep_t */
756 temp = (cdp_prep_t *) realloc(rrd->cdp_prep, sizeof(cdp_prep_t)
757 * rrd->stat_head->ds_cnt
758 * (rrd->stat_head->rra_cnt + 1));
760 rrd_set_error("parse_tag_rra: realloc failed.");
763 rrd->cdp_prep = temp;
764 cur_cdp_prep = rrd->cdp_prep
765 + (rrd->stat_head->ds_cnt * rrd->stat_head->rra_cnt);
766 memset(cur_cdp_prep, '\0',
767 sizeof(cdp_prep_t) * rrd->stat_head->ds_cnt);
770 /* allocate rra_ptr_t */
774 temp = (rra_ptr_t *) realloc(rrd->rra_ptr,
776 (rrd->stat_head->rra_cnt + 1));
778 rrd_set_error("parse_tag_rra: realloc failed.");
782 cur_rra_ptr = rrd->rra_ptr + rrd->stat_head->rra_cnt;
783 memset(cur_rra_ptr, '\0', sizeof(rra_ptr_t));
786 /* All space successfully allocated, increment number of RRAs. */
787 rrd->stat_head->rra_cnt++;
790 while ((element = get_xml_element(reader)) != NULL){
791 if (xmlStrcasecmp(element, (const xmlChar *) "cf") == 0)
792 status = parse_tag_rra_cf(reader, cur_rra_def);
793 else if (xmlStrcasecmp(element, (const xmlChar *) "pdp_per_row") == 0)
794 status = get_xml_ulong(reader,
795 &cur_rra_def->pdp_cnt);
796 else if (atoi(rrd->stat_head->version) == 1
797 && xmlStrcasecmp(element, (const xmlChar *) "xff") == 0)
798 status = get_xml_double(reader,
799 (double *) &cur_rra_def->
800 par[RRA_cdp_xff_val].u_val);
801 else if (atoi(rrd->stat_head->version) >= 2
802 && xmlStrcasecmp(element, (const xmlChar *) "params") == 0){
804 status = parse_tag_rra_params(reader, cur_rra_def);
810 else if (xmlStrcasecmp(element, (const xmlChar *) "cdp_prep") == 0){
812 status = parse_tag_rra_cdp_prep(reader, rrd, cur_cdp_prep);
818 else if (xmlStrcasecmp(element, (const xmlChar *) "database") == 0){
820 status = parse_tag_rra_database(reader, rrd);
826 else if (xmlStrcasecmp(element,(const xmlChar *) "/rra") == 0){
831 rrd_set_error("line %d: parse_tag_rra: Unknown tag: %s",
832 xmlTextReaderGetParserLineNumber(reader), element);
839 status = expect_element_end(reader,(char *)element);
845 /* Set the RRA pointer to a random location */
846 cur_rra_ptr->cur_row = rrd_random() % cur_rra_def->row_cnt;
849 } /* int parse_tag_rra */
852 * Parse a DS definition
854 static int parse_tag_ds_cdef(
855 xmlTextReaderPtr reader,
860 cdef = get_xml_text(reader);
862 /* We're always working on the last DS that has been added to the structure
863 * when we get here */
864 parseCDEF_DS((char *)cdef, rrd, rrd->stat_head->ds_cnt - 1);
866 if (rrd_test_error())
872 } /* int parse_tag_ds_cdef */
874 static int parse_tag_ds_type(
875 xmlTextReaderPtr reader,
879 dst = (char *)get_xml_text(reader);
882 status = dst_conv(dst);
884 rrd_set_error("parse_tag_ds_type: Unknown data source type: %s",
888 strncpy(ds_def->dst,dst,sizeof(ds_def->dst)-1);
889 ds_def->dst[sizeof(ds_def->dst)-1] = '\0';
894 } /* int parse_tag_ds_type */
896 static int parse_tag_ds(
897 xmlTextReaderPtr reader,
903 ds_def_t *cur_ds_def;
904 pdp_prep_t *cur_pdp_prep;
907 * If there are DS definitions after RRA definitions the number of values,
908 * cdp_prep areas and so on will be calculated wrong. Thus, enforce a
909 * specific order in this case.
911 if (rrd->stat_head->rra_cnt > 0) {
912 rrd_set_error("parse_tag_ds: All data source definitions MUST "
913 "precede the RRA definitions!");
917 /* Allocate space for the new DS definition */
921 temp = (ds_def_t *) realloc(rrd->ds_def,
923 (rrd->stat_head->ds_cnt + 1));
925 rrd_set_error("parse_tag_ds: malloc failed.");
929 cur_ds_def = rrd->ds_def + rrd->stat_head->ds_cnt;
930 memset(cur_ds_def, '\0', sizeof(ds_def_t));
933 /* Allocate pdp_prep space for the new DS definition */
937 temp = (pdp_prep_t *) realloc(rrd->pdp_prep,
939 (rrd->stat_head->ds_cnt + 1));
941 rrd_set_error("parse_tag_ds: malloc failed.");
944 rrd->pdp_prep = temp;
945 cur_pdp_prep = rrd->pdp_prep + rrd->stat_head->ds_cnt;
946 memset(cur_pdp_prep, '\0', sizeof(pdp_prep_t));
949 /* All allocations successful, let's increment the number of DSes. */
950 rrd->stat_head->ds_cnt++;
953 while ((element = get_xml_element(reader)) != NULL){
954 if (xmlStrcasecmp(element, (const xmlChar *) "name") == 0){
955 status = get_xml_string(reader,cur_ds_def->ds_nam,sizeof(cur_ds_def->ds_nam));
957 else if (xmlStrcasecmp(element, (const xmlChar *) "type") == 0)
958 status = parse_tag_ds_type(reader, cur_ds_def);
959 else if (xmlStrcasecmp(element,
960 (const xmlChar *) "minimal_heartbeat") == 0)
961 status = get_xml_ulong(reader,
962 &cur_ds_def->par[DS_mrhb_cnt].
964 else if (xmlStrcasecmp(element, (const xmlChar *) "min") == 0)
965 status = get_xml_double(reader,
966 &cur_ds_def->par[DS_min_val].u_val);
967 else if (xmlStrcasecmp(element, (const xmlChar *) "max") == 0)
968 status = get_xml_double(reader,
969 &cur_ds_def->par[DS_max_val].u_val);
970 else if (xmlStrcasecmp(element, (const xmlChar *) "cdef") == 0)
971 status = parse_tag_ds_cdef(reader, rrd);
972 else if (xmlStrcasecmp(element, (const xmlChar *) "last_ds") == 0)
973 status = get_xml_string(reader,
974 cur_pdp_prep->last_ds,
975 sizeof(cur_pdp_prep->last_ds));
976 else if (xmlStrcasecmp(element, (const xmlChar *) "value") == 0)
977 status = get_xml_double(reader,
978 &cur_pdp_prep->scratch[PDP_val].
980 else if (xmlStrcasecmp(element, (const xmlChar *) "unknown_sec") == 0)
981 status = get_xml_ulong(reader,
983 scratch[PDP_unkn_sec_cnt].u_cnt);
984 else if (xmlStrcasecmp(element, (const xmlChar *) "/ds") == 0) {
989 rrd_set_error("parse_tag_ds: Unknown tag: %s", element);
996 status = expect_element_end(reader,(char *)element);
1003 } /* int parse_tag_ds */
1008 static int parse_tag_rrd(
1009 xmlTextReaderPtr reader,
1016 while ((element = get_xml_element(reader)) != NULL ){
1017 if (xmlStrcasecmp(element, (const xmlChar *) "version") == 0)
1018 status = get_xml_string(reader,
1019 rrd->stat_head->version,
1020 sizeof(rrd->stat_head->version));
1021 else if (xmlStrcasecmp(element, (const xmlChar *) "step") == 0)
1022 status = get_xml_ulong(reader,
1023 &rrd->stat_head->pdp_step);
1024 else if (xmlStrcasecmp(element, (const xmlChar *) "lastupdate") == 0) {
1025 #ifdef TIME_T_IS_LONG
1026 status = get_xml_long(reader, &rrd->live_head->last_up);
1028 #ifdef TIME_T_IS_LONG_LONG
1029 status = get_xml_llong(reader, &rrd->live_head->last_up);
1031 if (sizeof(time_t) == sizeof(long)) {
1032 status = get_xml_long(reader,
1033 (long *)&rrd->live_head->last_up);
1035 else if (sizeof(time_t) == sizeof(long long)) {
1036 status = get_xml_llong(reader,
1037 (long long *)&rrd->live_head->last_up);
1042 else if (xmlStrcasecmp(element, (const xmlChar *) "ds") == 0){
1044 status = parse_tag_ds(reader, rrd);
1045 /* as we come back the </ds> tag is already gone */
1051 else if (xmlStrcasecmp(element, (const xmlChar *) "rra") == 0){
1053 status = parse_tag_rra(reader, rrd);
1059 else if (xmlStrcasecmp(element, (const xmlChar *) "/rrd") == 0) {
1064 rrd_set_error("parse_tag_rrd: Unknown tag: %s", element);
1072 status = expect_element_end(reader,(char *)element);
1078 } /* int parse_tag_rrd */
1080 static rrd_t *parse_file(
1081 const char *filename)
1083 xmlTextReaderPtr reader;
1088 reader = xmlNewTextReaderFilename(filename);
1089 if (reader == NULL) {
1090 rrd_set_error("Could not create xml reader for: %s",filename);
1094 if (expect_element(reader,"rrd") != 0) {
1095 xmlFreeTextReader(reader);
1099 rrd = (rrd_t *) malloc(sizeof(rrd_t));
1101 rrd_set_error("parse_file: malloc failed.");
1102 xmlFreeTextReader(reader);
1105 memset(rrd, '\0', sizeof(rrd_t));
1107 rrd->stat_head = (stat_head_t *) malloc(sizeof(stat_head_t));
1108 if (rrd->stat_head == NULL) {
1109 rrd_set_error("parse_tag_rrd: malloc failed.");
1110 xmlFreeTextReader(reader);
1114 memset(rrd->stat_head, '\0', sizeof(stat_head_t));
1116 strncpy(rrd->stat_head->cookie, "RRD", sizeof(rrd->stat_head->cookie));
1117 rrd->stat_head->float_cookie = FLOAT_COOKIE;
1119 rrd->live_head = (live_head_t *) malloc(sizeof(live_head_t));
1120 if (rrd->live_head == NULL) {
1121 rrd_set_error("parse_tag_rrd: malloc failed.");
1122 xmlFreeTextReader(reader);
1123 free(rrd->stat_head);
1127 memset(rrd->live_head, '\0', sizeof(live_head_t));
1129 status = parse_tag_rrd(reader, rrd);
1131 xmlFreeTextReader(reader);
1134 local_rrd_free(rrd);
1139 } /* rrd_t *parse_file */
1141 static int write_file(
1142 const char *file_name,
1147 unsigned int rra_offset;
1149 if (strcmp("-", file_name) == 0)
1152 int fd_flags = O_WRONLY | O_CREAT;
1155 #if defined(_WIN32) && !defined(__CYGWIN__) && !defined(__CYGWIN32__)
1156 fd_flags |= O_BINARY;
1159 if (opt_force_overwrite == 0)
1162 fd = open(file_name, fd_flags, 0666);
1164 rrd_set_error("creating '%s': %s", file_name,
1165 rrd_strerror(errno));
1169 fh = fdopen(fd, "wb");
1171 rrd_set_error("fdopen failed: %s", rrd_strerror(errno));
1176 if (atoi(rrd->stat_head->version) < 3) {
1177 /* we output 3 or higher */
1178 strcpy(rrd->stat_head->version, "0003");
1180 fwrite(rrd->stat_head, sizeof(stat_head_t), 1, fh);
1181 fwrite(rrd->ds_def, sizeof(ds_def_t), rrd->stat_head->ds_cnt, fh);
1182 fwrite(rrd->rra_def, sizeof(rra_def_t), rrd->stat_head->rra_cnt, fh);
1183 fwrite(rrd->live_head, sizeof(live_head_t), 1, fh);
1184 fwrite(rrd->pdp_prep, sizeof(pdp_prep_t), rrd->stat_head->ds_cnt, fh);
1185 fwrite(rrd->cdp_prep, sizeof(cdp_prep_t),
1186 rrd->stat_head->rra_cnt * rrd->stat_head->ds_cnt, fh);
1187 fwrite(rrd->rra_ptr, sizeof(rra_ptr_t), rrd->stat_head->rra_cnt, fh);
1189 /* calculate the number of rrd_values to dump */
1191 for (i = 0; i < rrd->stat_head->rra_cnt; i++) {
1192 unsigned long num_rows = rrd->rra_def[i].row_cnt;
1193 unsigned long cur_row = rrd->rra_ptr[i].cur_row;
1194 unsigned long ds_cnt = rrd->stat_head->ds_cnt;
1196 fwrite(rrd->rrd_value +
1197 (rra_offset + num_rows - 1 - cur_row) * ds_cnt,
1198 sizeof(rrd_value_t), (cur_row + 1) * ds_cnt, fh);
1200 fwrite(rrd->rrd_value + rra_offset * ds_cnt,
1201 sizeof(rrd_value_t), (num_rows - 1 - cur_row) * ds_cnt, fh);
1203 rra_offset += num_rows;
1206 /* lets see if we had an error */
1208 rrd_set_error("a file error occurred while creating '%s'", file_name);
1215 } /* int write_file */
1223 /* init rrd clean */
1225 opterr = 0; /* initialize getopt */
1228 int option_index = 0;
1229 static struct option long_options[] = {
1230 {"range-check", no_argument, 0, 'r'},
1231 {"force-overwrite", no_argument, 0, 'f'},
1235 opt = getopt_long(argc, argv, "rf", long_options, &option_index);
1242 opt_range_check = 1;
1246 opt_force_overwrite = 1;
1250 rrd_set_error("usage rrdtool %s [--range-check|-r] "
1251 "[--force-overwrite/-f] file.xml file.rrd",
1258 if ((argc - optind) != 2) {
1259 rrd_set_error("usage rrdtool %s [--range-check/-r] "
1260 "[--force-overwrite/-f] file.xml file.rrd", argv[0]);
1264 old_locale = setlocale(LC_NUMERIC, "C");
1266 rrd = parse_file(argv[optind]);
1268 setlocale(LC_NUMERIC, old_locale);
1273 if (write_file(argv[optind + 1], rrd) != 0) {
1274 local_rrd_free(rrd);
1277 local_rrd_free(rrd);
1281 } /* int rrd_restore */
1283 /* vim: set sw=2 sts=2 ts=8 et fdm=marker : */