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List Info
Thread: Segmentation fault in xmlFreeDoc
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| Segmentation fault in xmlFreeDoc |
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2006-05-19 06:39:11 |
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Hi,
I am encountering a segmentation fault in xmlFreeDoc function. I have
gone through your example code on xmlsoft.org for reference. I have
googled on this issue and found many such reporters but did not find a
proper solution on this.
I am using
libxml2-2.6.10 version
linux redhat 9
I have following function which is called many times. The test runs for
number of times without any problem and crashes all of a sudden in
xmlFreeDoc function. Can some one tell me where am i going wrong?
Or please give me some pointers to read more. One more point to not is
the process from where i call this function is multi-threaded.
Any special care to be taken in multi-threading.
INT4 getXMLReqType(INT1 *xmlstr, INT1 *msgtype)
{
xmlDocPtr doc;
xmlNodePtr cur;
INT1 ; *pXmlProp=NULL;
if(NULL == (doc = xmlParseMemory(xmlstr, strlen(xmlstr))))
{
; DPRINTF("\nError: xmlParseMemory Failed \n");
xmlCleanupParser();
; return 1;
; }
cur = xmlDocGetRootElement(doc);
if (cur == NULL)
{
; DPRINTF("\nError: Empty Document\n");
; xmlFreeDoc(doc);
xmlCleanupParser();
; return 1;
; }
; if((!xmlStrcmp(cur->name, (const xmlChar*)ROOT_RESPONSE)) ||
; (!xmlStrcmp(cur->name, (const xmlChar*)ROOT_REQUEST)))
; {
; cur = cur->xmlChildrenNode;
; if(cur != NULL)
{
; if((!xmlStrcmp(cur->name, (const xmlChar*)REQUEST)) ||
; ;
(!xmlStrcmp(cur->name, (const xmlChar*)RESPONSE)))
; {
/*get type information*/
; ;
pXmlProp = (INT1 *)xmlGetProp(cur, TYPE);
; if(pXmlProp != NULL )
; {
; ;
strncpy(msgtype, (const INT1 *)pXmlProp, REQTYPE_LEN-1);
;
xmlFree(pXmlProp);
; ; }
; }
; }
}
xmlFreeDoc(doc); ; /*crash happens here*/
xmlCleanupParser();
; return SUCCESS;
}
the backtrace of the crash is as follows:
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