concatenates two ldns_rr_lists together. This modifies
*left (to extend it and add the pointers from *right).
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left: the leftside
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right: the rightside
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Returns a left with right concatenated to it
ldns_rr_list_push_rr()
pushes an rr to an rrlist.
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rr_list: the rr_list to push to
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rr: the rr to push
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Returns false on error, otherwise true
ldns_rr_list_pop_rr()
pops the last rr from an rrlist.
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rr_list: the rr_list to pop from
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Returns NULL if nothing to pop. Otherwise the popped RR
AUTHOR
The ldns team at NLnet Labs. Which consists out of
Jelte Jansen and Miek Gieben.