/**
* xmlStrncatNew:
* @str1: first xmlChar string
* @str2: second xmlChar string
* @len: the len of @str2 or < 0
*
* same as xmlStrncat, but creates a new string. The original
* two strings are not freed. If @len is < 0 then the length
* will be calculated automatically.
*
* Returns a new xmlChar * or NULL
*/
xmlChar *
xmlStrncatNew(const xmlChar *str1, const xmlChar *str2, int len)
{
int size;
xmlChar *ret;
if (len < 0)
len = xmlStrlen(str2);
if ((str2 == NULL) || (len == 0))
return(xmlStrdup(str1));
if (str1 == NULL)
return(xmlStrndup(str2, len));
size = xmlStrlen(str1);
ret = (xmlChar *) xmlMalloc((size + len + 1) * sizeof(xmlChar));
if (ret == NULL)
{
xmlErrMemory(NULL, NULL);
return(xmlStrndup(str1, size));
}
memcpy(ret, str1, size * sizeof(xmlChar));
memcpy(&ret[size], str2, len * sizeof(xmlChar));
ret[size + len] = 0;
return(ret);
}
/**
* xmlStrndup:
* @cur: the input xmlChar *
* @len: the len of @cur
*
* a strndup for array of xmlChar's
*
* Returns a new xmlChar * or NULL
*/
xmlChar *
xmlStrndup(const xmlChar *cur, intptr_t len) {
xmlChar *ret;
static int ictr = 0;
ictr++;
// if( ictr == 294 ) //126 )
// {
// while(ictr>0)
// {
// Sleep(0);
// ictr--;
// }
// }
if ((cur == NULL) || (len < 0)) return(NULL);
ret = (xmlChar *) xmlMallocAtomic((len + 1) * sizeof(xmlChar));
if (ret == NULL) {
xmlErrMemory(NULL, NULL);
return(NULL);
}
memcpy(ret, cur, len * sizeof(xmlChar));
//printf( "%d\n", ictr );
fflush(stdout);
ret[len] = 0;
return(ret);
}
/**
* xmlStrndup:
* @cur: the input xmlChar *
* @len: the len of @cur
*
* a strndup for array of xmlChar's
*
* Returns a new xmlChar * or NULL
*/
xmlChar *
xmlStrndup(const xmlChar *cur, int len) {
xmlChar *ret;
if ((cur == NULL) || (len < 0)) return(NULL);
ret = (xmlChar *) xmlMallocAtomic((len + 1) * sizeof(xmlChar));
if (ret == NULL) {
xmlErrMemory(NULL, NULL);
return(NULL);
}
memcpy(ret, cur, len * sizeof(xmlChar));
ret[len] = 0;
return(ret);
}
XMLPUBFUNEXPORT xmlChar *
xmlCharStrndup(const char *cur, int len) {
int i;
xmlChar *ret;
if ((cur == NULL) || (len < 0)) return(NULL);
ret = (xmlChar *) xmlMallocAtomic((len + 1) * sizeof(xmlChar));
if (ret == NULL) {
xmlErrMemory(NULL, NULL);
return(NULL);
}
for (i = 0;i < len;i++)
ret[i] = (xmlChar) cur[i];
ret[len] = 0;
return(ret);
}
/**
* xmlEscapeFormatString:
* @msg: a pointer to the string in which to escape '%' characters.
* Must be a heap-allocated buffer created by libxml2 that may be
* returned, or that may be freed and replaced.
*
* Replaces the string pointed to by 'msg' with an escaped string.
* Returns the same string with all '%' characters escaped.
*/
xmlChar *
xmlEscapeFormatString(xmlChar **msg)
{
xmlChar *msgPtr = NULL;
xmlChar *result = NULL;
xmlChar *resultPtr = NULL;
size_t count = 0;
size_t msgLen = 0;
size_t resultLen = 0;
if (!msg || !*msg)
return(NULL);
for (msgPtr = *msg; *msgPtr != '\0'; ++msgPtr) {
++msgLen;
if (*msgPtr == '%')
++count;
}
if (count == 0)
return(*msg);
resultLen = msgLen + count + 1;
result = (xmlChar *) xmlMallocAtomic(resultLen * sizeof(xmlChar));
if (result == NULL) {
/* Clear *msg to prevent format string vulnerabilities in
out-of-memory situations. */
xmlFree(*msg);
*msg = NULL;
xmlErrMemory(NULL, NULL);
return(NULL);
}
for (msgPtr = *msg, resultPtr = result; *msgPtr != '\0'; ++msgPtr, ++resultPtr) {
*resultPtr = *msgPtr;
if (*msgPtr == '%')
*(++resultPtr) = '%';
}
result[resultLen - 1] = '\0';
xmlFree(*msg);
*msg = result;
return *msg;
}
xmlChar *
xmlStrncat(xmlChar *cur, const xmlChar *add, int len) {
int size;
xmlChar *ret;
if ((add == NULL) || (len == 0))
return(cur);
if (cur == NULL)
return(xmlStrndup(add, len));
size = xmlStrlen(cur);
ret = (xmlChar *) xmlRealloc(cur, (size + len + 1) * sizeof(xmlChar));
if (ret == NULL) {
xmlErrMemory(NULL, NULL);
return(cur);
}
memcpy(&ret[size], add, len * sizeof(xmlChar));
ret[size + len] = 0;
return(ret);
}
/**
* xmlStrncat:
* @param cur the original xmlChar* array
* @param add the xmlChar* array added
* @param len the length of add
*
* a strncat for array of xmlChar's, it will extend cur with the len
* first bytes of add.
*
* Returns a new xmlChar*, the original cur is reallocated if needed
* and should not be freed
*
* OOM: possible --> OOM flag is set
*/
XMLPUBFUNEXPORT xmlChar*
xmlStrncat(xmlChar* cur, const xmlChar* add, int len)
{
int size;
xmlChar* ret;
if ((add == NULL) || (len == 0))
return(cur);
if (cur == NULL)
return(xmlStrndup(add, len));
size = xmlStrlen(cur);
// DONE: Fix xmlRealloc: Nothing to fix!
ret = (xmlChar*) xmlRealloc(cur, (size + len + 1) * sizeof(xmlChar));
if (!ret) {
xmlErrMemory(NULL, NULL);
return(cur);
}
memcpy(&ret[size], add, len * sizeof(xmlChar));
ret[size + len] = 0;
return(ret);
}
