static struct data_pair * find_pair_by_key(char * key){
struct data_pair * p;
for( p=head; p!=NULL; p=p->next )
{
if(pd_strcmp(key, p->key) == 0){
return p;
}
}
return NULL;
}
int pd_string_compare(t_pdstring *s1, t_pdstring *s2)
{
if (s1 && s2) {
if (s1 == s2) {
return 0; // identical => equal
}
pduint32 i, len = s1->length;
const pduint8* p1 = s1->strData;
const pduint8* p2 = s2->strData;
if (len != s2->length) {
// shorter string is 'less'
return (len < s2->length) ? -1 : 1;
}
for (i = 0; i < len; i++) {
if (p1[i] != p2[i]) {
return (p1[i] < p2[i]) ? -1 : 1;
}
}
return 0; // equal
}
else {
return pd_strcmp(NULL, NULL);
}
}
