url: Add option CURLOPT_RESOLVER_START_FUNCTION

- Add new option CURLOPT_RESOLVER_START_FUNCTION to set a callback that
  will be called every time before a new resolve request is started
  (ie before a host is resolved) with a pointer to backend-specific
  resolver data. Currently this is only useful for ares.

- Add new option CURLOPT_RESOLVER_START_DATA to set a user pointer to
  pass to the resolver start callback.

Closes https://github.com/curl/curl/pull/2311
This commit is contained in:
Francisco Sedano 2018-02-14 17:20:43 +00:00 committed by Jay Satiro
parent dd027c80fe
commit 23713645d4
16 changed files with 379 additions and 3 deletions

View file

@ -20,7 +20,7 @@ noinst_PROGRAMS = chkhostname libauthretry libntlmconnect \
lib559 lib560 lib562 lib564 lib565 lib566 lib567 lib568 lib569 lib570 \
lib571 lib572 lib573 lib574 lib575 lib576 lib578 lib579 lib582 \
lib583 lib585 lib586 lib587 lib589 lib590 lib591 lib597 lib598 lib599 \
lib643 lib644 lib645 lib650 lib651 lib652 lib653 lib654 \
lib643 lib644 lib645 lib650 lib651 lib652 lib653 lib654 lib655 \
lib1500 lib1501 lib1502 lib1503 lib1504 lib1505 lib1506 lib1507 lib1508 \
lib1509 lib1510 lib1511 lib1512 lib1513 lib1514 lib1515 lib1517 \
lib1520 lib1521 \
@ -327,6 +327,9 @@ lib653_CPPFLAGS = $(AM_CPPFLAGS)
lib654_SOURCES = lib654.c $(SUPPORTFILES)
lib654_CPPFLAGS = $(AM_CPPFLAGS)
lib655_SOURCES = lib655.c $(SUPPORTFILES)
lib655_CPPFLAGS = $(AM_CPPFLAGS)
lib1500_SOURCES = lib1500.c $(SUPPORTFILES) $(TESTUTIL)
lib1500_LDADD = $(TESTUTIL_LIBS)
lib1500_CPPFLAGS = $(AM_CPPFLAGS)