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
5 * initial libxml2 version of rrd_restore (c) by Florian octo Forster
6 *****************************************************************************
8 *************************************************************************** */
13 #include <libxml/parser.h>
14 #include <libxml/xmlreader.h>
18 # include <unistd.h> /* for off_t */
20 typedef size_t ssize_t;
25 #if defined(_WIN32) && !defined(__CYGWIN__) && !defined(__CYGWIN32__)
32 #include "rrd_rpncalc.h"
34 #define ARRAY_LENGTH(a) (sizeof (a) / sizeof ((a)[0]))
36 static int opt_range_check = 0;
37 static int opt_force_overwrite = 0;
43 /* skip all but tags. complain if we do not get the right tag */
44 /* dept -1 causes depth to be ignored */
45 static xmlChar* get_xml_element (
46 xmlTextReaderPtr reader
49 while(xmlTextReaderRead(reader)){
52 type = xmlTextReaderNodeType(reader);
53 if (type == XML_READER_TYPE_TEXT){
55 value = xmlTextReaderValue(reader);
56 rrd_set_error("line %d: expected element but found text '%s'",
57 xmlTextReaderGetParserLineNumber(reader),value);
61 /* skip all other non-elements */
62 if (type != XML_READER_TYPE_ELEMENT && type != XML_READER_TYPE_END_ELEMENT)
65 name = xmlTextReaderName(reader);
66 if (type == XML_READER_TYPE_END_ELEMENT){
69 temp = (xmlChar*)sprintf_alloc("/%s",name);
70 temp2 = xmlStrdup(temp);
75 /* all seems well, return the happy news */
78 rrd_set_error("the xml ended while we were looking for an element");
80 } /* get_xml_element */
82 static void local_rrd_free (rrd_t *rrd)
96 static int expect_element (
97 xmlTextReaderPtr reader,
101 name = get_xml_element(reader);
104 if (xmlStrcasecmp(name,(xmlChar *)exp_name) != 0){
105 rrd_set_error("line %d: expected <%s> element but found <%s>",
106 xmlTextReaderGetParserLineNumber(reader),name,exp_name);
112 } /* expect_element */
114 static int expect_element_end (
115 xmlTextReaderPtr reader,
119 name = get_xml_element(reader);
122 if (xmlStrcasecmp(name+1,(xmlChar *)exp_name) != 0 || name[0] != '/'){
123 rrd_set_error("line %d: expected </%s> end element but found <%s>",
124 xmlTextReaderGetParserLineNumber(reader),exp_name,name);
130 } /* expect_element_end */
133 static xmlChar* get_xml_text (
134 xmlTextReaderPtr reader
137 while(xmlTextReaderRead(reader)){
143 type = xmlTextReaderNodeType(reader);
144 if (type == XML_READER_TYPE_ELEMENT){
146 name = xmlTextReaderName(reader);
147 rrd_set_error("line %d: expected a value but found an <%s> element",
148 xmlTextReaderGetParserLineNumber(reader),
153 /* skip all other non-text */
154 if (xmlTextReaderNodeType(reader) != XML_READER_TYPE_TEXT)
157 text = xmlTextReaderValue(reader);
160 while ((begin_ptr[0] != 0) && (isspace(begin_ptr[0])))
162 if (begin_ptr[0] == 0) {
164 return xmlStrdup(BAD_CAST "");
167 while ((end_ptr[0] != 0) && (!isspace(end_ptr[0])))
171 ret = xmlStrdup(begin_ptr);
175 rrd_set_error("file ended while looking for text");
180 static int get_xml_string(
181 xmlTextReaderPtr reader,
186 str = get_xml_text(reader);
188 strncpy(value,(char *)str,max_len);
197 static int get_xml_long(
198 xmlTextReaderPtr reader,
203 if ((text = get_xml_text(reader)) != NULL){
205 temp = strtol((char *)text,NULL, 0);
207 rrd_set_error("ling %d: get_xml_long from '%s' %s",
208 xmlTextReaderGetParserLineNumber(reader),
209 text,rrd_strerror(errno));
220 static int get_xml_ulong(
221 xmlTextReaderPtr reader,
222 unsigned long *value)
227 if ((text = get_xml_text(reader)) != NULL){
229 temp = strtoul((char *)text,NULL, 0);
231 rrd_set_error("ling %d: get_xml_ulong from '%s' %s",
232 xmlTextReaderGetParserLineNumber(reader),
233 text,rrd_strerror(errno));
242 } /* get_xml_ulong */
244 static int get_xml_llong(
245 xmlTextReaderPtr reader,
251 if ((text = get_xml_text(reader)) != NULL){
253 temp = strtoll((char *)text,NULL, 0);
255 rrd_set_error("ling %d: get_xml_llong from '%s' %s",
256 xmlTextReaderGetParserLineNumber(reader),
257 text,rrd_strerror(errno));
266 } /* get_xml_llong */
268 static int get_xml_double(
269 xmlTextReaderPtr reader,
275 if ((text = (char *)get_xml_text(reader))!= NULL){
276 if (strcasestr(text,"nan")){
281 else if (strcasestr(text,"-inf")){
286 else if (strcasestr(text,"+inf")
287 || strcasestr(text,"inf")){
293 temp = strtod((char *)text,NULL);
296 rrd_set_error("ling %d: get_xml_double from '%s' %s",
297 xmlTextReaderGetParserLineNumber(reader),
298 text,rrd_strerror(errno));
305 } /* get_xml_double */
308 static int value_check_range(
309 rrd_value_t *rrd_value,
310 const ds_def_t *ds_def)
315 if (opt_range_check == 0)
318 min = ds_def->par[DS_min_val].u_val;
319 max = ds_def->par[DS_max_val].u_val;
321 if (((!isnan(min)) && (*rrd_value < min))
322 || ((!isnan(max)) && (*rrd_value > max)))
326 } /* int value_check_range */
329 * Parse the <database> block within an RRA definition
332 static int parse_tag_rra_database_row(
333 xmlTextReaderPtr reader,
335 rrd_value_t *rrd_value)
337 unsigned int values_count = 0;
341 for (values_count = 0;values_count < rrd->stat_head->ds_cnt;values_count++){
342 if (expect_element(reader,"v") == 0){
343 status = get_xml_double(reader,rrd_value + values_count);
345 value_check_range(rrd_value + values_count,
346 rrd->ds_def + values_count);
351 if (expect_element(reader,"/v") == -1){
356 } /* int parse_tag_rra_database_row */
358 static int parse_tag_rra_database(
359 xmlTextReaderPtr reader,
362 rra_def_t *cur_rra_def;
363 unsigned int total_row_cnt;
369 for (i = 0; i < (((int) rrd->stat_head->rra_cnt) - 1); i++)
370 total_row_cnt += rrd->rra_def[i].row_cnt;
372 cur_rra_def = rrd->rra_def + i;
375 while ((element = get_xml_element(reader)) != NULL){
376 if (xmlStrcasecmp(element,(const xmlChar *)"row") == 0){
378 rrd_value_t *cur_rrd_value;
379 unsigned int total_values_count = rrd->stat_head->ds_cnt
380 * (total_row_cnt + 1);
382 /* Allocate space for the new values.. */
383 temp = (rrd_value_t *) realloc(rrd->rrd_value,
384 sizeof(rrd_value_t) *
387 rrd_set_error("parse_tag_rra_database: realloc failed.");
391 rrd->rrd_value = temp;
392 cur_rrd_value = rrd->rrd_value
393 + (rrd->stat_head->ds_cnt * total_row_cnt);
394 memset(cur_rrd_value, '\0',
395 sizeof(rrd_value_t) * rrd->stat_head->ds_cnt);
397 cur_rra_def->row_cnt++;
400 parse_tag_rra_database_row(reader, rrd, cur_rrd_value);
402 status = expect_element(reader,"/row");
403 } /* if (xmlStrcasecmp(element,"row")) */
405 if ( xmlStrcasecmp(element,(const xmlChar *)"/database") == 0){
410 rrd_set_error("line %d: found unexpected tag: %s",
411 xmlTextReaderGetParserLineNumber(reader),element);
420 } /* int parse_tag_rra_database */
423 * Parse the <cdp_prep> block within an RRA definition
425 static int parse_tag_rra_cdp_prep_ds_history(
426 xmlTextReaderPtr reader,
427 cdp_prep_t *cdp_prep)
429 /* Make `history_buffer' the same size as the scratch area, plus the
430 * terminating NULL byte. */
434 if ((history = get_xml_text(reader)) != NULL){
435 history_ptr = (char *) (&cdp_prep->scratch[0]);
436 for (i = 0; history[i] != '\0'; i++)
437 history_ptr[i] = (history[i] == '1') ? 1 : 0;
442 } /* int parse_tag_rra_cdp_prep_ds_history */
444 static int parse_tag_rra_cdp_prep_ds(
445 xmlTextReaderPtr reader,
447 cdp_prep_t *cdp_prep)
451 memset(cdp_prep, '\0', sizeof(cdp_prep_t));
455 if (atoi(rrd->stat_head->version) == 1) {
456 cdp_prep->scratch[CDP_primary_val].u_val = 0.0;
457 cdp_prep->scratch[CDP_secondary_val].u_val = 0.0;
460 while ((element = get_xml_element(reader)) != NULL){
461 if (xmlStrcasecmp(element, (const xmlChar *) "primary_value") == 0)
463 get_xml_double(reader,&cdp_prep->scratch[CDP_primary_val].u_val);
464 else if (xmlStrcasecmp(element, (const xmlChar *) "secondary_value") == 0)
466 get_xml_double(reader,&cdp_prep->scratch[CDP_secondary_val].u_val);
467 else if (xmlStrcasecmp(element, (const xmlChar *) "intercept") == 0)
468 status = get_xml_double(reader,
470 scratch[CDP_hw_intercept].u_val);
471 else if (xmlStrcasecmp(element, (const xmlChar *) "last_intercept") ==
474 get_xml_double(reader,
476 scratch[CDP_hw_last_intercept].u_val);
477 else if (xmlStrcasecmp(element, (const xmlChar *) "slope") == 0)
478 status = get_xml_double(reader,
479 &cdp_prep->scratch[CDP_hw_slope].
481 else if (xmlStrcasecmp(element, (const xmlChar *) "last_slope") == 0)
482 status = get_xml_double(reader,
484 scratch[CDP_hw_last_slope].u_val);
485 else if (xmlStrcasecmp(element, (const xmlChar *) "nan_count") == 0)
486 status = get_xml_ulong(reader,
488 scratch[CDP_null_count].u_cnt);
489 else if (xmlStrcasecmp(element, (const xmlChar *) "last_nan_count") ==
492 get_xml_ulong(reader,
494 scratch[CDP_last_null_count].u_cnt);
495 else if (xmlStrcasecmp(element, (const xmlChar *) "seasonal") == 0)
496 status = get_xml_double(reader,
497 &cdp_prep->scratch[CDP_hw_seasonal].
499 else if (xmlStrcasecmp(element, (const xmlChar *) "last_seasonal") ==
502 get_xml_double(reader,
503 &cdp_prep->scratch[CDP_hw_last_seasonal].
505 else if (xmlStrcasecmp(element, (const xmlChar *) "init_flag") == 0)
506 status = get_xml_ulong(reader,
508 scratch[CDP_init_seasonal].u_cnt);
509 else if (xmlStrcasecmp(element, (const xmlChar *) "history") == 0)
510 status = parse_tag_rra_cdp_prep_ds_history(reader, cdp_prep);
511 else if (xmlStrcasecmp(element, (const xmlChar *) "value") == 0)
512 status = get_xml_double(reader,
513 &cdp_prep->scratch[CDP_val].u_val);
514 else if (xmlStrcasecmp(element,
515 (const xmlChar *) "unknown_datapoints") == 0)
516 status = get_xml_ulong(reader,
518 scratch[CDP_unkn_pdp_cnt].u_cnt);
519 else if (xmlStrcasecmp(element,
520 (const xmlChar *) "/ds") == 0){
525 rrd_set_error("parse_tag_rra_cdp_prep: Unknown tag: %s",
535 status = expect_element_end(reader,(char *)element);
541 } /* int parse_tag_rra_cdp_prep_ds */
543 static int parse_tag_rra_cdp_prep(
544 xmlTextReaderPtr reader,
546 cdp_prep_t *cdp_prep)
550 unsigned int ds_count;
553 for ( ds_count = 0; ds_count < rrd->stat_head->ds_cnt;ds_count++){
554 if (expect_element(reader,"ds") == 0) {
555 status = parse_tag_rra_cdp_prep_ds(reader, rrd,
556 cdp_prep + ds_count);
565 status = expect_element(reader,"/cdp_prep");
567 } /* int parse_tag_rra_cdp_prep */
570 * Parse the <params> block within an RRA definition
572 static int parse_tag_rra_params(
573 xmlTextReaderPtr reader,
580 while ((element = get_xml_element(reader)) != NULL){
582 * Parameters for CF_HWPREDICT
584 if (xmlStrcasecmp(element, (const xmlChar *) "hw_alpha") == 0)
585 status = get_xml_double(reader,
586 &rra_def->par[RRA_hw_alpha].u_val);
587 else if (xmlStrcasecmp(element, (const xmlChar *) "hw_beta") == 0)
588 status = get_xml_double(reader,
589 &rra_def->par[RRA_hw_beta].u_val);
590 else if (xmlStrcasecmp(element,
591 (const xmlChar *) "dependent_rra_idx") == 0)
592 status = get_xml_ulong(reader,
594 par[RRA_dependent_rra_idx].u_cnt);
596 * Parameters for CF_SEASONAL and CF_DEVSEASONAL
598 else if (xmlStrcasecmp(element, (const xmlChar *) "seasonal_gamma") ==
601 get_xml_double(reader,
602 &rra_def->par[RRA_seasonal_gamma].u_val);
603 else if (xmlStrcasecmp
604 (element, (const xmlChar *) "seasonal_smooth_idx") == 0)
606 get_xml_ulong(reader,
608 par[RRA_seasonal_smooth_idx].u_cnt);
609 else if (xmlStrcasecmp(element, (const xmlChar *) "smoothing_window")
612 get_xml_double(reader,
614 par[RRA_seasonal_smoothing_window].
616 /* else if (dependent_rra_idx) ...; */
618 * Parameters for CF_FAILURES
620 else if (xmlStrcasecmp(element, (const xmlChar *) "delta_pos") == 0)
621 status = get_xml_double(reader,
622 &rra_def->par[RRA_delta_pos].u_val);
623 else if (xmlStrcasecmp(element, (const xmlChar *) "delta_neg") == 0)
624 status = get_xml_double(reader,
625 &rra_def->par[RRA_delta_neg].u_val);
626 else if (xmlStrcasecmp(element, (const xmlChar *) "window_len") == 0)
627 status = get_xml_ulong(reader,
628 &rra_def->par[RRA_window_len].
630 else if (xmlStrcasecmp(element, (const xmlChar *) "failure_threshold")
633 get_xml_ulong(reader,
635 par[RRA_failure_threshold].u_cnt);
637 * Parameters for CF_AVERAGE, CF_MAXIMUM, CF_MINIMUM, and CF_LAST
639 else if (xmlStrcasecmp(element, (const xmlChar *) "xff") == 0)
640 status = get_xml_double(reader,
641 &rra_def->par[RRA_cdp_xff_val].
644 * Compatibility code for 1.0.49
646 else if (xmlStrcasecmp(element, (const xmlChar *) "value") == 0) { /* {{{ */
649 for (i=0;i<ARRAY_LENGTH(rra_def->par);i++){
650 if ((i == RRA_dependent_rra_idx)
651 || (i == RRA_seasonal_smooth_idx)
652 || (i == RRA_failure_threshold))
653 status = get_xml_ulong(reader,
657 status = get_xml_double(reader,
658 &rra_def->par[i].u_val);
662 if ( i-1 < ARRAY_LENGTH(rra_def->par)){
663 status = expect_element(reader,"/value");
665 status = expect_element(reader,"value");
673 else if (xmlStrcasecmp(element,(const xmlChar *) "/params") == 0){
678 rrd_set_error("line %d: parse_tag_rra_params: Unknown tag: %s",
679 xmlTextReaderGetParserLineNumber(reader),element);
682 status = expect_element_end(reader,(char *)element);
688 } /* int parse_tag_rra_params */
691 * Parse an RRA definition
693 static int parse_tag_rra_cf(
694 xmlTextReaderPtr reader,
699 status = get_xml_string(reader,
700 rra_def->cf_nam, sizeof(rra_def->cf_nam));
704 status = cf_conv(rra_def->cf_nam);
706 rrd_set_error("parse_tag_rra_cf: Unknown consolidation function: %s",
712 } /* int parse_tag_rra_cf */
714 static int parse_tag_rra(
715 xmlTextReaderPtr reader,
721 rra_def_t *cur_rra_def;
722 cdp_prep_t *cur_cdp_prep;
723 rra_ptr_t *cur_rra_ptr;
725 /* Allocate more rra_def space for this RRA */
729 temp = (rra_def_t *) realloc(rrd->rra_def,
731 (rrd->stat_head->rra_cnt + 1));
733 rrd_set_error("parse_tag_rra: realloc failed.");
737 cur_rra_def = rrd->rra_def + rrd->stat_head->rra_cnt;
738 memset(cur_rra_def, '\0', sizeof(rra_def_t));
741 /* allocate cdp_prep_t */
745 temp = (cdp_prep_t *) realloc(rrd->cdp_prep, sizeof(cdp_prep_t)
746 * rrd->stat_head->ds_cnt
747 * (rrd->stat_head->rra_cnt + 1));
749 rrd_set_error("parse_tag_rra: realloc failed.");
752 rrd->cdp_prep = temp;
753 cur_cdp_prep = rrd->cdp_prep
754 + (rrd->stat_head->ds_cnt * rrd->stat_head->rra_cnt);
755 memset(cur_cdp_prep, '\0',
756 sizeof(cdp_prep_t) * rrd->stat_head->ds_cnt);
759 /* allocate rra_ptr_t */
763 temp = (rra_ptr_t *) realloc(rrd->rra_ptr,
765 (rrd->stat_head->rra_cnt + 1));
767 rrd_set_error("parse_tag_rra: realloc failed.");
771 cur_rra_ptr = rrd->rra_ptr + rrd->stat_head->rra_cnt;
772 memset(cur_rra_ptr, '\0', sizeof(rra_ptr_t));
775 /* All space successfully allocated, increment number of RRAs. */
776 rrd->stat_head->rra_cnt++;
779 while ((element = get_xml_element(reader)) != NULL){
780 if (xmlStrcasecmp(element, (const xmlChar *) "cf") == 0)
781 status = parse_tag_rra_cf(reader, cur_rra_def);
782 else if (xmlStrcasecmp(element, (const xmlChar *) "pdp_per_row") == 0)
783 status = get_xml_ulong(reader,
784 &cur_rra_def->pdp_cnt);
785 else if (atoi(rrd->stat_head->version) == 1
786 && xmlStrcasecmp(element, (const xmlChar *) "xff") == 0)
787 status = get_xml_double(reader,
788 (double *) &cur_rra_def->
789 par[RRA_cdp_xff_val].u_val);
790 else if (atoi(rrd->stat_head->version) >= 2
791 && xmlStrcasecmp(element, (const xmlChar *) "params") == 0){
793 status = parse_tag_rra_params(reader, cur_rra_def);
799 else if (xmlStrcasecmp(element, (const xmlChar *) "cdp_prep") == 0){
801 status = parse_tag_rra_cdp_prep(reader, rrd, cur_cdp_prep);
807 else if (xmlStrcasecmp(element, (const xmlChar *) "database") == 0){
809 status = parse_tag_rra_database(reader, rrd);
815 else if (xmlStrcasecmp(element,(const xmlChar *) "/rra") == 0){
820 rrd_set_error("line %d: parse_tag_rra: Unknown tag: %s",
821 xmlTextReaderGetParserLineNumber(reader), element);
828 status = expect_element_end(reader,(char *)element);
834 /* Set the RRA pointer to a random location */
835 cur_rra_ptr->cur_row = rrd_random() % cur_rra_def->row_cnt;
838 } /* int parse_tag_rra */
841 * Parse a DS definition
843 static int parse_tag_ds_cdef(
844 xmlTextReaderPtr reader,
849 cdef = get_xml_text(reader);
851 /* We're always working on the last DS that has been added to the structure
852 * when we get here */
853 parseCDEF_DS((char *)cdef, rrd, rrd->stat_head->ds_cnt - 1);
855 if (rrd_test_error())
861 } /* int parse_tag_ds_cdef */
863 static int parse_tag_ds_type(
864 xmlTextReaderPtr reader,
868 dst = (char *)get_xml_text(reader);
871 status = dst_conv(dst);
873 rrd_set_error("parse_tag_ds_type: Unknown data source type: %s",
877 strncpy(ds_def->dst,dst,sizeof(ds_def->dst)-1);
878 ds_def->dst[sizeof(ds_def->dst)-1] = '\0';
883 } /* int parse_tag_ds_type */
885 static int parse_tag_ds(
886 xmlTextReaderPtr reader,
892 ds_def_t *cur_ds_def;
893 pdp_prep_t *cur_pdp_prep;
896 * If there are DS definitions after RRA definitions the number of values,
897 * cdp_prep areas and so on will be calculated wrong. Thus, enforce a
898 * specific order in this case.
900 if (rrd->stat_head->rra_cnt > 0) {
901 rrd_set_error("parse_tag_ds: All data source definitions MUST "
902 "precede the RRA definitions!");
906 /* Allocate space for the new DS definition */
910 temp = (ds_def_t *) realloc(rrd->ds_def,
912 (rrd->stat_head->ds_cnt + 1));
914 rrd_set_error("parse_tag_ds: malloc failed.");
918 cur_ds_def = rrd->ds_def + rrd->stat_head->ds_cnt;
919 memset(cur_ds_def, '\0', sizeof(ds_def_t));
922 /* Allocate pdp_prep space for the new DS definition */
926 temp = (pdp_prep_t *) realloc(rrd->pdp_prep,
928 (rrd->stat_head->ds_cnt + 1));
930 rrd_set_error("parse_tag_ds: malloc failed.");
933 rrd->pdp_prep = temp;
934 cur_pdp_prep = rrd->pdp_prep + rrd->stat_head->ds_cnt;
935 memset(cur_pdp_prep, '\0', sizeof(pdp_prep_t));
938 /* All allocations successful, let's increment the number of DSes. */
939 rrd->stat_head->ds_cnt++;
942 while ((element = get_xml_element(reader)) != NULL){
943 if (xmlStrcasecmp(element, (const xmlChar *) "name") == 0){
944 status = get_xml_string(reader,cur_ds_def->ds_nam,sizeof(cur_ds_def->ds_nam));
946 else if (xmlStrcasecmp(element, (const xmlChar *) "type") == 0)
947 status = parse_tag_ds_type(reader, cur_ds_def);
948 else if (xmlStrcasecmp(element,
949 (const xmlChar *) "minimal_heartbeat") == 0)
950 status = get_xml_ulong(reader,
951 &cur_ds_def->par[DS_mrhb_cnt].
953 else if (xmlStrcasecmp(element, (const xmlChar *) "min") == 0)
954 status = get_xml_double(reader,
955 &cur_ds_def->par[DS_min_val].u_val);
956 else if (xmlStrcasecmp(element, (const xmlChar *) "max") == 0)
957 status = get_xml_double(reader,
958 &cur_ds_def->par[DS_max_val].u_val);
959 else if (xmlStrcasecmp(element, (const xmlChar *) "cdef") == 0)
960 status = parse_tag_ds_cdef(reader, rrd);
961 else if (xmlStrcasecmp(element, (const xmlChar *) "last_ds") == 0)
962 status = get_xml_string(reader,
963 cur_pdp_prep->last_ds,
964 sizeof(cur_pdp_prep->last_ds));
965 else if (xmlStrcasecmp(element, (const xmlChar *) "value") == 0)
966 status = get_xml_double(reader,
967 &cur_pdp_prep->scratch[PDP_val].
969 else if (xmlStrcasecmp(element, (const xmlChar *) "unknown_sec") == 0)
970 status = get_xml_ulong(reader,
972 scratch[PDP_unkn_sec_cnt].u_cnt);
973 else if (xmlStrcasecmp(element, (const xmlChar *) "/ds") == 0) {
978 rrd_set_error("parse_tag_ds: Unknown tag: %s", element);
985 status = expect_element_end(reader,(char *)element);
992 } /* int parse_tag_ds */
997 static int parse_tag_rrd(
998 xmlTextReaderPtr reader,
1005 while ((element = get_xml_element(reader)) != NULL ){
1006 if (xmlStrcasecmp(element, (const xmlChar *) "version") == 0)
1007 status = get_xml_string(reader,
1008 rrd->stat_head->version,
1009 sizeof(rrd->stat_head->version));
1010 else if (xmlStrcasecmp(element, (const xmlChar *) "step") == 0)
1011 status = get_xml_ulong(reader,
1012 &rrd->stat_head->pdp_step);
1013 else if (xmlStrcasecmp(element, (const xmlChar *) "lastupdate") == 0) {
1014 if (sizeof(time_t) == sizeof(long)) {
1015 status = get_xml_long(reader,
1016 (long *)&rrd->live_head->last_up);
1018 else if (sizeof(time_t) == sizeof(long long)) {
1019 status = get_xml_llong(reader,
1020 (long long *)&rrd->live_head->last_up);
1023 else if (xmlStrcasecmp(element, (const xmlChar *) "ds") == 0){
1025 status = parse_tag_ds(reader, rrd);
1026 /* as we come back the </ds> tag is already gone */
1032 else if (xmlStrcasecmp(element, (const xmlChar *) "rra") == 0){
1034 status = parse_tag_rra(reader, rrd);
1040 else if (xmlStrcasecmp(element, (const xmlChar *) "/rrd") == 0) {
1045 rrd_set_error("parse_tag_rrd: Unknown tag: %s", element);
1053 status = expect_element_end(reader,(char *)element);
1059 } /* int parse_tag_rrd */
1061 static rrd_t *parse_file(
1062 const char *filename)
1064 xmlTextReaderPtr reader;
1069 reader = xmlNewTextReaderFilename(filename);
1070 if (reader == NULL) {
1071 rrd_set_error("Could not create xml reader for: %s",filename);
1075 if (expect_element(reader,"rrd") != 0) {
1076 xmlFreeTextReader(reader);
1080 rrd = (rrd_t *) malloc(sizeof(rrd_t));
1082 rrd_set_error("parse_file: malloc failed.");
1083 xmlFreeTextReader(reader);
1086 memset(rrd, '\0', sizeof(rrd_t));
1088 rrd->stat_head = (stat_head_t *) malloc(sizeof(stat_head_t));
1089 if (rrd->stat_head == NULL) {
1090 rrd_set_error("parse_tag_rrd: malloc failed.");
1091 xmlFreeTextReader(reader);
1095 memset(rrd->stat_head, '\0', sizeof(stat_head_t));
1097 strncpy(rrd->stat_head->cookie, "RRD", sizeof(rrd->stat_head->cookie));
1098 rrd->stat_head->float_cookie = FLOAT_COOKIE;
1100 rrd->live_head = (live_head_t *) malloc(sizeof(live_head_t));
1101 if (rrd->live_head == NULL) {
1102 rrd_set_error("parse_tag_rrd: malloc failed.");
1103 xmlFreeTextReader(reader);
1104 free(rrd->stat_head);
1108 memset(rrd->live_head, '\0', sizeof(live_head_t));
1110 status = parse_tag_rrd(reader, rrd);
1112 xmlFreeTextReader(reader);
1115 local_rrd_free(rrd);
1120 } /* rrd_t *parse_file */
1122 static int write_file(
1123 const char *file_name,
1128 unsigned int rra_offset;
1130 if (strcmp("-", file_name) == 0)
1133 int fd_flags = O_WRONLY | O_CREAT;
1136 #if defined(_WIN32) && !defined(__CYGWIN__) && !defined(__CYGWIN32__)
1137 fd_flags |= O_BINARY;
1140 if (opt_force_overwrite == 0)
1143 fd = open(file_name, fd_flags, 0666);
1145 rrd_set_error("creating '%s': %s", file_name,
1146 rrd_strerror(errno));
1150 fh = fdopen(fd, "wb");
1152 rrd_set_error("fdopen failed: %s", rrd_strerror(errno));
1157 if (atoi(rrd->stat_head->version) < 3) {
1158 /* we output 3 or higher */
1159 strcpy(rrd->stat_head->version, "0003");
1161 fwrite(rrd->stat_head, sizeof(stat_head_t), 1, fh);
1162 fwrite(rrd->ds_def, sizeof(ds_def_t), rrd->stat_head->ds_cnt, fh);
1163 fwrite(rrd->rra_def, sizeof(rra_def_t), rrd->stat_head->rra_cnt, fh);
1164 fwrite(rrd->live_head, sizeof(live_head_t), 1, fh);
1165 fwrite(rrd->pdp_prep, sizeof(pdp_prep_t), rrd->stat_head->ds_cnt, fh);
1166 fwrite(rrd->cdp_prep, sizeof(cdp_prep_t),
1167 rrd->stat_head->rra_cnt * rrd->stat_head->ds_cnt, fh);
1168 fwrite(rrd->rra_ptr, sizeof(rra_ptr_t), rrd->stat_head->rra_cnt, fh);
1170 /* calculate the number of rrd_values to dump */
1172 for (i = 0; i < rrd->stat_head->rra_cnt; i++) {
1173 unsigned long num_rows = rrd->rra_def[i].row_cnt;
1174 unsigned long cur_row = rrd->rra_ptr[i].cur_row;
1175 unsigned long ds_cnt = rrd->stat_head->ds_cnt;
1177 fwrite(rrd->rrd_value +
1178 (rra_offset + num_rows - 1 - cur_row) * ds_cnt,
1179 sizeof(rrd_value_t), (cur_row + 1) * ds_cnt, fh);
1181 fwrite(rrd->rrd_value + rra_offset * ds_cnt,
1182 sizeof(rrd_value_t), (num_rows - 1 - cur_row) * ds_cnt, fh);
1184 rra_offset += num_rows;
1187 /* lets see if we had an error */
1189 rrd_set_error("a file error occurred while creating '%s'", file_name);
1196 } /* int write_file */
1204 /* init rrd clean */
1206 opterr = 0; /* initialize getopt */
1209 int option_index = 0;
1210 static struct option long_options[] = {
1211 {"range-check", no_argument, 0, 'r'},
1212 {"force-overwrite", no_argument, 0, 'f'},
1216 opt = getopt_long(argc, argv, "rf", long_options, &option_index);
1223 opt_range_check = 1;
1227 opt_force_overwrite = 1;
1231 rrd_set_error("usage rrdtool %s [--range-check|-r] "
1232 "[--force-overwrite/-f] file.xml file.rrd",
1239 if ((argc - optind) != 2) {
1240 rrd_set_error("usage rrdtool %s [--range-check/-r] "
1241 "[--force-overwrite/-f] file.xml file.rrd", argv[0]);
1245 rrd = parse_file(argv[optind]);
1249 if (write_file(argv[optind + 1], rrd) != 0) {
1250 local_rrd_free(rrd);
1253 local_rrd_free(rrd);
1257 } /* int rrd_restore */
1259 /* vim: set sw=2 sts=2 ts=8 et fdm=marker : */