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){
281 if (strcasestr(text,"nan")){
286 else if (strcasestr(text,"-inf")){
291 else if (strcasestr(text,"+inf")
292 || strcasestr(text,"inf")){
298 temp = strtod((char *)text,NULL);
300 rrd_set_error("ling %d: get_xml_double from '%s' %s",
301 xmlTextReaderGetParserLineNumber(reader),
302 text,rrd_strerror(errno));
311 } /* get_xml_double */
314 static int value_check_range(
315 rrd_value_t *rrd_value,
316 const ds_def_t *ds_def)
321 if (opt_range_check == 0)
324 min = ds_def->par[DS_min_val].u_val;
325 max = ds_def->par[DS_max_val].u_val;
327 if (((!isnan(min)) && (*rrd_value < min))
328 || ((!isnan(max)) && (*rrd_value > max)))
332 } /* int value_check_range */
335 * Parse the <database> block within an RRA definition
338 static int parse_tag_rra_database_row(
339 xmlTextReaderPtr reader,
341 rrd_value_t *rrd_value)
343 unsigned int values_count = 0;
347 for (values_count = 0;values_count < rrd->stat_head->ds_cnt;values_count++){
348 if (expect_element(reader,"v") == 0){
349 status = get_xml_double(reader,rrd_value + values_count);
351 value_check_range(rrd_value + values_count,
352 rrd->ds_def + values_count);
357 if (expect_element(reader,"/v") == -1){
362 } /* int parse_tag_rra_database_row */
364 static int parse_tag_rra_database(
365 xmlTextReaderPtr reader,
368 rra_def_t *cur_rra_def;
369 unsigned int total_row_cnt;
375 for (i = 0; i < (((int) rrd->stat_head->rra_cnt) - 1); i++)
376 total_row_cnt += rrd->rra_def[i].row_cnt;
378 cur_rra_def = rrd->rra_def + i;
381 while ((element = get_xml_element(reader)) != NULL){
382 if (xmlStrcasecmp(element,(const xmlChar *)"row") == 0){
384 rrd_value_t *cur_rrd_value;
385 unsigned int total_values_count = rrd->stat_head->ds_cnt
386 * (total_row_cnt + 1);
388 /* Allocate space for the new values.. */
389 temp = (rrd_value_t *) realloc(rrd->rrd_value,
390 sizeof(rrd_value_t) *
393 rrd_set_error("parse_tag_rra_database: realloc failed.");
397 rrd->rrd_value = temp;
398 cur_rrd_value = rrd->rrd_value
399 + (rrd->stat_head->ds_cnt * total_row_cnt);
400 memset(cur_rrd_value, '\0',
401 sizeof(rrd_value_t) * rrd->stat_head->ds_cnt);
403 cur_rra_def->row_cnt++;
406 parse_tag_rra_database_row(reader, rrd, cur_rrd_value);
408 status = expect_element(reader,"/row");
409 } /* if (xmlStrcasecmp(element,"row")) */
411 if ( xmlStrcasecmp(element,(const xmlChar *)"/database") == 0){
416 rrd_set_error("line %d: found unexpected tag: %s",
417 xmlTextReaderGetParserLineNumber(reader),element);
426 } /* int parse_tag_rra_database */
429 * Parse the <cdp_prep> block within an RRA definition
431 static int parse_tag_rra_cdp_prep_ds_history(
432 xmlTextReaderPtr reader,
433 cdp_prep_t *cdp_prep)
435 /* Make `history_buffer' the same size as the scratch area, plus the
436 * terminating NULL byte. */
440 if ((history = get_xml_text(reader)) != NULL){
441 history_ptr = (char *) (&cdp_prep->scratch[0]);
442 for (i = 0; history[i] != '\0'; i++)
443 history_ptr[i] = (history[i] == '1') ? 1 : 0;
448 } /* int parse_tag_rra_cdp_prep_ds_history */
450 static int parse_tag_rra_cdp_prep_ds(
451 xmlTextReaderPtr reader,
453 cdp_prep_t *cdp_prep)
457 memset(cdp_prep, '\0', sizeof(cdp_prep_t));
461 if (atoi(rrd->stat_head->version) == 1) {
462 cdp_prep->scratch[CDP_primary_val].u_val = 0.0;
463 cdp_prep->scratch[CDP_secondary_val].u_val = 0.0;
466 while ((element = get_xml_element(reader)) != NULL){
467 if (xmlStrcasecmp(element, (const xmlChar *) "primary_value") == 0)
469 get_xml_double(reader,&cdp_prep->scratch[CDP_primary_val].u_val);
470 else if (xmlStrcasecmp(element, (const xmlChar *) "secondary_value") == 0)
472 get_xml_double(reader,&cdp_prep->scratch[CDP_secondary_val].u_val);
473 else if (xmlStrcasecmp(element, (const xmlChar *) "intercept") == 0)
474 status = get_xml_double(reader,
476 scratch[CDP_hw_intercept].u_val);
477 else if (xmlStrcasecmp(element, (const xmlChar *) "last_intercept") ==
480 get_xml_double(reader,
482 scratch[CDP_hw_last_intercept].u_val);
483 else if (xmlStrcasecmp(element, (const xmlChar *) "slope") == 0)
484 status = get_xml_double(reader,
485 &cdp_prep->scratch[CDP_hw_slope].
487 else if (xmlStrcasecmp(element, (const xmlChar *) "last_slope") == 0)
488 status = get_xml_double(reader,
490 scratch[CDP_hw_last_slope].u_val);
491 else if (xmlStrcasecmp(element, (const xmlChar *) "nan_count") == 0)
492 status = get_xml_ulong(reader,
494 scratch[CDP_null_count].u_cnt);
495 else if (xmlStrcasecmp(element, (const xmlChar *) "last_nan_count") ==
498 get_xml_ulong(reader,
500 scratch[CDP_last_null_count].u_cnt);
501 else if (xmlStrcasecmp(element, (const xmlChar *) "seasonal") == 0)
502 status = get_xml_double(reader,
503 &cdp_prep->scratch[CDP_hw_seasonal].
505 else if (xmlStrcasecmp(element, (const xmlChar *) "last_seasonal") ==
508 get_xml_double(reader,
509 &cdp_prep->scratch[CDP_hw_last_seasonal].
511 else if (xmlStrcasecmp(element, (const xmlChar *) "init_flag") == 0)
512 status = get_xml_ulong(reader,
514 scratch[CDP_init_seasonal].u_cnt);
515 else if (xmlStrcasecmp(element, (const xmlChar *) "history") == 0)
516 status = parse_tag_rra_cdp_prep_ds_history(reader, cdp_prep);
517 else if (xmlStrcasecmp(element, (const xmlChar *) "value") == 0)
518 status = get_xml_double(reader,
519 &cdp_prep->scratch[CDP_val].u_val);
520 else if (xmlStrcasecmp(element,
521 (const xmlChar *) "unknown_datapoints") == 0)
522 status = get_xml_ulong(reader,
524 scratch[CDP_unkn_pdp_cnt].u_cnt);
525 else if (xmlStrcasecmp(element,
526 (const xmlChar *) "/ds") == 0){
531 rrd_set_error("parse_tag_rra_cdp_prep: Unknown tag: %s",
541 status = expect_element_end(reader,(char *)element);
547 } /* int parse_tag_rra_cdp_prep_ds */
549 static int parse_tag_rra_cdp_prep(
550 xmlTextReaderPtr reader,
552 cdp_prep_t *cdp_prep)
556 unsigned int ds_count;
559 for ( ds_count = 0; ds_count < rrd->stat_head->ds_cnt;ds_count++){
560 if (expect_element(reader,"ds") == 0) {
561 status = parse_tag_rra_cdp_prep_ds(reader, rrd,
562 cdp_prep + ds_count);
571 status = expect_element(reader,"/cdp_prep");
573 } /* int parse_tag_rra_cdp_prep */
576 * Parse the <params> block within an RRA definition
578 static int parse_tag_rra_params(
579 xmlTextReaderPtr reader,
586 while ((element = get_xml_element(reader)) != NULL){
588 * Parameters for CF_HWPREDICT
590 if (xmlStrcasecmp(element, (const xmlChar *) "hw_alpha") == 0)
591 status = get_xml_double(reader,
592 &rra_def->par[RRA_hw_alpha].u_val);
593 else if (xmlStrcasecmp(element, (const xmlChar *) "hw_beta") == 0)
594 status = get_xml_double(reader,
595 &rra_def->par[RRA_hw_beta].u_val);
596 else if (xmlStrcasecmp(element,
597 (const xmlChar *) "dependent_rra_idx") == 0)
598 status = get_xml_ulong(reader,
600 par[RRA_dependent_rra_idx].u_cnt);
602 * Parameters for CF_SEASONAL and CF_DEVSEASONAL
604 else if (xmlStrcasecmp(element, (const xmlChar *) "seasonal_gamma") ==
607 get_xml_double(reader,
608 &rra_def->par[RRA_seasonal_gamma].u_val);
609 else if (xmlStrcasecmp
610 (element, (const xmlChar *) "seasonal_smooth_idx") == 0)
612 get_xml_ulong(reader,
614 par[RRA_seasonal_smooth_idx].u_cnt);
615 else if (xmlStrcasecmp(element, (const xmlChar *) "smoothing_window")
618 get_xml_double(reader,
620 par[RRA_seasonal_smoothing_window].
622 /* else if (dependent_rra_idx) ...; */
624 * Parameters for CF_FAILURES
626 else if (xmlStrcasecmp(element, (const xmlChar *) "delta_pos") == 0)
627 status = get_xml_double(reader,
628 &rra_def->par[RRA_delta_pos].u_val);
629 else if (xmlStrcasecmp(element, (const xmlChar *) "delta_neg") == 0)
630 status = get_xml_double(reader,
631 &rra_def->par[RRA_delta_neg].u_val);
632 else if (xmlStrcasecmp(element, (const xmlChar *) "window_len") == 0)
633 status = get_xml_ulong(reader,
634 &rra_def->par[RRA_window_len].
636 else if (xmlStrcasecmp(element, (const xmlChar *) "failure_threshold")
639 get_xml_ulong(reader,
641 par[RRA_failure_threshold].u_cnt);
643 * Parameters for CF_AVERAGE, CF_MAXIMUM, CF_MINIMUM, and CF_LAST
645 else if (xmlStrcasecmp(element, (const xmlChar *) "xff") == 0)
646 status = get_xml_double(reader,
647 &rra_def->par[RRA_cdp_xff_val].
650 * Compatibility code for 1.0.49
652 else if (xmlStrcasecmp(element, (const xmlChar *) "value") == 0) { /* {{{ */
655 for (i=0;i<ARRAY_LENGTH(rra_def->par);i++){
656 if ((i == RRA_dependent_rra_idx)
657 || (i == RRA_seasonal_smooth_idx)
658 || (i == RRA_failure_threshold))
659 status = get_xml_ulong(reader,
663 status = get_xml_double(reader,
664 &rra_def->par[i].u_val);
668 if ( i-1 < ARRAY_LENGTH(rra_def->par)){
669 status = expect_element(reader,"/value");
671 status = expect_element(reader,"value");
679 else if (xmlStrcasecmp(element,(const xmlChar *) "/params") == 0){
684 rrd_set_error("line %d: parse_tag_rra_params: Unknown tag: %s",
685 xmlTextReaderGetParserLineNumber(reader),element);
688 status = expect_element_end(reader,(char *)element);
694 } /* int parse_tag_rra_params */
697 * Parse an RRA definition
699 static int parse_tag_rra_cf(
700 xmlTextReaderPtr reader,
705 status = get_xml_string(reader,
706 rra_def->cf_nam, sizeof(rra_def->cf_nam));
710 status = cf_conv(rra_def->cf_nam);
712 rrd_set_error("parse_tag_rra_cf: Unknown consolidation function: %s",
718 } /* int parse_tag_rra_cf */
720 static int parse_tag_rra(
721 xmlTextReaderPtr reader,
727 rra_def_t *cur_rra_def;
728 cdp_prep_t *cur_cdp_prep;
729 rra_ptr_t *cur_rra_ptr;
731 /* Allocate more rra_def space for this RRA */
735 temp = (rra_def_t *) realloc(rrd->rra_def,
737 (rrd->stat_head->rra_cnt + 1));
739 rrd_set_error("parse_tag_rra: realloc failed.");
743 cur_rra_def = rrd->rra_def + rrd->stat_head->rra_cnt;
744 memset(cur_rra_def, '\0', sizeof(rra_def_t));
747 /* allocate cdp_prep_t */
751 temp = (cdp_prep_t *) realloc(rrd->cdp_prep, sizeof(cdp_prep_t)
752 * rrd->stat_head->ds_cnt
753 * (rrd->stat_head->rra_cnt + 1));
755 rrd_set_error("parse_tag_rra: realloc failed.");
758 rrd->cdp_prep = temp;
759 cur_cdp_prep = rrd->cdp_prep
760 + (rrd->stat_head->ds_cnt * rrd->stat_head->rra_cnt);
761 memset(cur_cdp_prep, '\0',
762 sizeof(cdp_prep_t) * rrd->stat_head->ds_cnt);
765 /* allocate rra_ptr_t */
769 temp = (rra_ptr_t *) realloc(rrd->rra_ptr,
771 (rrd->stat_head->rra_cnt + 1));
773 rrd_set_error("parse_tag_rra: realloc failed.");
777 cur_rra_ptr = rrd->rra_ptr + rrd->stat_head->rra_cnt;
778 memset(cur_rra_ptr, '\0', sizeof(rra_ptr_t));
781 /* All space successfully allocated, increment number of RRAs. */
782 rrd->stat_head->rra_cnt++;
785 while ((element = get_xml_element(reader)) != NULL){
786 if (xmlStrcasecmp(element, (const xmlChar *) "cf") == 0)
787 status = parse_tag_rra_cf(reader, cur_rra_def);
788 else if (xmlStrcasecmp(element, (const xmlChar *) "pdp_per_row") == 0)
789 status = get_xml_ulong(reader,
790 &cur_rra_def->pdp_cnt);
791 else if (atoi(rrd->stat_head->version) == 1
792 && xmlStrcasecmp(element, (const xmlChar *) "xff") == 0)
793 status = get_xml_double(reader,
794 (double *) &cur_rra_def->
795 par[RRA_cdp_xff_val].u_val);
796 else if (atoi(rrd->stat_head->version) >= 2
797 && xmlStrcasecmp(element, (const xmlChar *) "params") == 0){
799 status = parse_tag_rra_params(reader, cur_rra_def);
805 else if (xmlStrcasecmp(element, (const xmlChar *) "cdp_prep") == 0){
807 status = parse_tag_rra_cdp_prep(reader, rrd, cur_cdp_prep);
813 else if (xmlStrcasecmp(element, (const xmlChar *) "database") == 0){
815 status = parse_tag_rra_database(reader, rrd);
821 else if (xmlStrcasecmp(element,(const xmlChar *) "/rra") == 0){
826 rrd_set_error("line %d: parse_tag_rra: Unknown tag: %s",
827 xmlTextReaderGetParserLineNumber(reader), element);
834 status = expect_element_end(reader,(char *)element);
840 /* Set the RRA pointer to a random location */
841 cur_rra_ptr->cur_row = rrd_random() % cur_rra_def->row_cnt;
844 } /* int parse_tag_rra */
847 * Parse a DS definition
849 static int parse_tag_ds_cdef(
850 xmlTextReaderPtr reader,
855 cdef = get_xml_text(reader);
857 /* We're always working on the last DS that has been added to the structure
858 * when we get here */
859 parseCDEF_DS((char *)cdef, rrd, rrd->stat_head->ds_cnt - 1);
861 if (rrd_test_error())
867 } /* int parse_tag_ds_cdef */
869 static int parse_tag_ds_type(
870 xmlTextReaderPtr reader,
874 dst = (char *)get_xml_text(reader);
877 status = dst_conv(dst);
879 rrd_set_error("parse_tag_ds_type: Unknown data source type: %s",
883 strncpy(ds_def->dst,dst,sizeof(ds_def->dst)-1);
884 ds_def->dst[sizeof(ds_def->dst)-1] = '\0';
889 } /* int parse_tag_ds_type */
891 static int parse_tag_ds(
892 xmlTextReaderPtr reader,
898 ds_def_t *cur_ds_def;
899 pdp_prep_t *cur_pdp_prep;
902 * If there are DS definitions after RRA definitions the number of values,
903 * cdp_prep areas and so on will be calculated wrong. Thus, enforce a
904 * specific order in this case.
906 if (rrd->stat_head->rra_cnt > 0) {
907 rrd_set_error("parse_tag_ds: All data source definitions MUST "
908 "precede the RRA definitions!");
912 /* Allocate space for the new DS definition */
916 temp = (ds_def_t *) realloc(rrd->ds_def,
918 (rrd->stat_head->ds_cnt + 1));
920 rrd_set_error("parse_tag_ds: malloc failed.");
924 cur_ds_def = rrd->ds_def + rrd->stat_head->ds_cnt;
925 memset(cur_ds_def, '\0', sizeof(ds_def_t));
928 /* Allocate pdp_prep space for the new DS definition */
932 temp = (pdp_prep_t *) realloc(rrd->pdp_prep,
934 (rrd->stat_head->ds_cnt + 1));
936 rrd_set_error("parse_tag_ds: malloc failed.");
939 rrd->pdp_prep = temp;
940 cur_pdp_prep = rrd->pdp_prep + rrd->stat_head->ds_cnt;
941 memset(cur_pdp_prep, '\0', sizeof(pdp_prep_t));
944 /* All allocations successful, let's increment the number of DSes. */
945 rrd->stat_head->ds_cnt++;
948 while ((element = get_xml_element(reader)) != NULL){
949 if (xmlStrcasecmp(element, (const xmlChar *) "name") == 0){
950 status = get_xml_string(reader,cur_ds_def->ds_nam,sizeof(cur_ds_def->ds_nam));
952 else if (xmlStrcasecmp(element, (const xmlChar *) "type") == 0)
953 status = parse_tag_ds_type(reader, cur_ds_def);
954 else if (xmlStrcasecmp(element,
955 (const xmlChar *) "minimal_heartbeat") == 0)
956 status = get_xml_ulong(reader,
957 &cur_ds_def->par[DS_mrhb_cnt].
959 else if (xmlStrcasecmp(element, (const xmlChar *) "min") == 0)
960 status = get_xml_double(reader,
961 &cur_ds_def->par[DS_min_val].u_val);
962 else if (xmlStrcasecmp(element, (const xmlChar *) "max") == 0)
963 status = get_xml_double(reader,
964 &cur_ds_def->par[DS_max_val].u_val);
965 else if (xmlStrcasecmp(element, (const xmlChar *) "cdef") == 0)
966 status = parse_tag_ds_cdef(reader, rrd);
967 else if (xmlStrcasecmp(element, (const xmlChar *) "last_ds") == 0)
968 status = get_xml_string(reader,
969 cur_pdp_prep->last_ds,
970 sizeof(cur_pdp_prep->last_ds));
971 else if (xmlStrcasecmp(element, (const xmlChar *) "value") == 0)
972 status = get_xml_double(reader,
973 &cur_pdp_prep->scratch[PDP_val].
975 else if (xmlStrcasecmp(element, (const xmlChar *) "unknown_sec") == 0)
976 status = get_xml_ulong(reader,
978 scratch[PDP_unkn_sec_cnt].u_cnt);
979 else if (xmlStrcasecmp(element, (const xmlChar *) "/ds") == 0) {
984 rrd_set_error("parse_tag_ds: Unknown tag: %s", element);
991 status = expect_element_end(reader,(char *)element);
998 } /* int parse_tag_ds */
1003 static int parse_tag_rrd(
1004 xmlTextReaderPtr reader,
1011 while ((element = get_xml_element(reader)) != NULL ){
1012 if (xmlStrcasecmp(element, (const xmlChar *) "version") == 0)
1013 status = get_xml_string(reader,
1014 rrd->stat_head->version,
1015 sizeof(rrd->stat_head->version));
1016 else if (xmlStrcasecmp(element, (const xmlChar *) "step") == 0)
1017 status = get_xml_ulong(reader,
1018 &rrd->stat_head->pdp_step);
1019 else if (xmlStrcasecmp(element, (const xmlChar *) "lastupdate") == 0) {
1020 #ifdef TIME_T_IS_LONG
1021 status = get_xml_long(reader, &rrd->live_head->last_up);
1023 #ifdef TIME_T_IS_LONG_LONG
1024 status = get_xml_llong(reader, &rrd->live_head->last_up);
1026 if (sizeof(time_t) == sizeof(long)) {
1027 status = get_xml_long(reader,
1028 (long *)&rrd->live_head->last_up);
1030 else if (sizeof(time_t) == sizeof(long long)) {
1031 status = get_xml_llong(reader,
1032 (long long *)&rrd->live_head->last_up);
1037 else if (xmlStrcasecmp(element, (const xmlChar *) "ds") == 0){
1039 status = parse_tag_ds(reader, rrd);
1040 /* as we come back the </ds> tag is already gone */
1046 else if (xmlStrcasecmp(element, (const xmlChar *) "rra") == 0){
1048 status = parse_tag_rra(reader, rrd);
1054 else if (xmlStrcasecmp(element, (const xmlChar *) "/rrd") == 0) {
1059 rrd_set_error("parse_tag_rrd: Unknown tag: %s", element);
1067 status = expect_element_end(reader,(char *)element);
1073 } /* int parse_tag_rrd */
1075 static rrd_t *parse_file(
1076 const char *filename)
1078 xmlTextReaderPtr reader;
1083 reader = xmlNewTextReaderFilename(filename);
1084 if (reader == NULL) {
1085 rrd_set_error("Could not create xml reader for: %s",filename);
1089 if (expect_element(reader,"rrd") != 0) {
1090 xmlFreeTextReader(reader);
1094 rrd = (rrd_t *) malloc(sizeof(rrd_t));
1096 rrd_set_error("parse_file: malloc failed.");
1097 xmlFreeTextReader(reader);
1100 memset(rrd, '\0', sizeof(rrd_t));
1102 rrd->stat_head = (stat_head_t *) malloc(sizeof(stat_head_t));
1103 if (rrd->stat_head == NULL) {
1104 rrd_set_error("parse_tag_rrd: malloc failed.");
1105 xmlFreeTextReader(reader);
1109 memset(rrd->stat_head, '\0', sizeof(stat_head_t));
1111 strncpy(rrd->stat_head->cookie, "RRD", sizeof(rrd->stat_head->cookie));
1112 rrd->stat_head->float_cookie = FLOAT_COOKIE;
1114 rrd->live_head = (live_head_t *) malloc(sizeof(live_head_t));
1115 if (rrd->live_head == NULL) {
1116 rrd_set_error("parse_tag_rrd: malloc failed.");
1117 xmlFreeTextReader(reader);
1118 free(rrd->stat_head);
1122 memset(rrd->live_head, '\0', sizeof(live_head_t));
1124 status = parse_tag_rrd(reader, rrd);
1126 xmlFreeTextReader(reader);
1129 local_rrd_free(rrd);
1134 } /* rrd_t *parse_file */
1136 static int write_file(
1137 const char *file_name,
1142 unsigned int rra_offset;
1144 if (strcmp("-", file_name) == 0)
1147 int fd_flags = O_WRONLY | O_CREAT;
1150 #if defined(_WIN32) && !defined(__CYGWIN__) && !defined(__CYGWIN32__)
1151 fd_flags |= O_BINARY;
1154 if (opt_force_overwrite == 0)
1157 fd = open(file_name, fd_flags, 0666);
1159 rrd_set_error("creating '%s': %s", file_name,
1160 rrd_strerror(errno));
1164 fh = fdopen(fd, "wb");
1166 rrd_set_error("fdopen failed: %s", rrd_strerror(errno));
1171 if (atoi(rrd->stat_head->version) < 3) {
1172 /* we output 3 or higher */
1173 strcpy(rrd->stat_head->version, "0003");
1175 fwrite(rrd->stat_head, sizeof(stat_head_t), 1, fh);
1176 fwrite(rrd->ds_def, sizeof(ds_def_t), rrd->stat_head->ds_cnt, fh);
1177 fwrite(rrd->rra_def, sizeof(rra_def_t), rrd->stat_head->rra_cnt, fh);
1178 fwrite(rrd->live_head, sizeof(live_head_t), 1, fh);
1179 fwrite(rrd->pdp_prep, sizeof(pdp_prep_t), rrd->stat_head->ds_cnt, fh);
1180 fwrite(rrd->cdp_prep, sizeof(cdp_prep_t),
1181 rrd->stat_head->rra_cnt * rrd->stat_head->ds_cnt, fh);
1182 fwrite(rrd->rra_ptr, sizeof(rra_ptr_t), rrd->stat_head->rra_cnt, fh);
1184 /* calculate the number of rrd_values to dump */
1186 for (i = 0; i < rrd->stat_head->rra_cnt; i++) {
1187 unsigned long num_rows = rrd->rra_def[i].row_cnt;
1188 unsigned long cur_row = rrd->rra_ptr[i].cur_row;
1189 unsigned long ds_cnt = rrd->stat_head->ds_cnt;
1191 fwrite(rrd->rrd_value +
1192 (rra_offset + num_rows - 1 - cur_row) * ds_cnt,
1193 sizeof(rrd_value_t), (cur_row + 1) * ds_cnt, fh);
1195 fwrite(rrd->rrd_value + rra_offset * ds_cnt,
1196 sizeof(rrd_value_t), (num_rows - 1 - cur_row) * ds_cnt, fh);
1198 rra_offset += num_rows;
1201 /* lets see if we had an error */
1203 rrd_set_error("a file error occurred while creating '%s'", file_name);
1210 } /* int write_file */
1218 /* init rrd clean */
1220 opterr = 0; /* initialize getopt */
1223 int option_index = 0;
1224 static struct option long_options[] = {
1225 {"range-check", no_argument, 0, 'r'},
1226 {"force-overwrite", no_argument, 0, 'f'},
1230 opt = getopt_long(argc, argv, "rf", long_options, &option_index);
1237 opt_range_check = 1;
1241 opt_force_overwrite = 1;
1245 rrd_set_error("usage rrdtool %s [--range-check|-r] "
1246 "[--force-overwrite/-f] file.xml file.rrd",
1253 if ((argc - optind) != 2) {
1254 rrd_set_error("usage rrdtool %s [--range-check/-r] "
1255 "[--force-overwrite/-f] file.xml file.rrd", argv[0]);
1259 rrd = parse_file(argv[optind]);
1263 if (write_file(argv[optind + 1], rrd) != 0) {
1264 local_rrd_free(rrd);
1267 local_rrd_free(rrd);
1271 } /* int rrd_restore */
1273 /* vim: set sw=2 sts=2 ts=8 et fdm=marker : */