mirror of https://github.com/getdnsapi/getdns.git
Simple example rewritten
This commit is contained in:
Willem Toorop
parent
3aca772220
commit
51bfa9c86a
|
|
@ -48,9 +48,9 @@ LDFLAGS=@LDFLAGS@ -L../../src
|
|||
LDLIBS=../../src/libgetdns.la @LIBS@
|
||||
|
||||
|
||||
OBJS=example-all-functions.lo example-simple-answers.lo example-tree.lo example-synchronous.lo example-reverse.lo synchronous-json-pointer.lo synchronous-concise.lo
|
||||
OBJS=example-all-functions.lo example-simple-answers.lo example-tree.lo example-synchronous.lo example-reverse.lo synchronous-json-pointer.lo simple-json-pointer.lo
|
||||
|
||||
PROGRAMS=example-all-functions example-synchronous example-simple-answers example-tree example-reverse synchronous-json-pointer synchronous-concise
|
||||
PROGRAMS=example-all-functions example-synchronous example-simple-answers example-tree example-reverse synchronous-json-pointer simple-json-pointer
|
||||
|
||||
.SUFFIXES: .c .o .a .lo .h
|
||||
|
||||
|
|
@ -77,8 +77,8 @@ example-synchronous: example-synchronous.lo
|
|||
synchronous-json-pointer: synchronous-json-pointer.lo
|
||||
$(LIBTOOL) --tag=CC --mode=link $(CC) $(CFLAGS) $(LDFLAGS) $(LDLIBS) -o $@ synchronous-json-pointer.lo
|
||||
|
||||
synchronous-concise: synchronous-concise.lo
|
||||
$(LIBTOOL) --tag=CC --mode=link $(CC) $(CFLAGS) $(LDFLAGS) $(LDLIBS) -o $@ synchronous-concise.lo
|
||||
simple-json-pointer: simple-json-pointer.lo
|
||||
$(LIBTOOL) --tag=CC --mode=link $(CC) $(CFLAGS) $(LDFLAGS) $(LDLIBS) $(EXTENSION_LIBEVENT_LIB) $(EXTENSION_LIBEVENT_LDFLAGS) $(EXTENSION_LIBEVENT_EXT_LIBS) -o $@ simple-json-pointer.lo
|
||||
|
||||
$(EXTENSION_LIBEVENT_LIB):
|
||||
@echo "***"
|
||||
|
|
@ -166,6 +166,12 @@ example-synchronous.lo example-synchronous.o: $(srcdir)/example-synchronous.c $(
|
|||
example-tree.lo example-tree.o: $(srcdir)/example-tree.c $(srcdir)/getdns_libevent.h ../../src/config.h \
|
||||
../../src/getdns/getdns.h $(srcdir)/../../src/getdns/getdns_ext_libevent.h \
|
||||
$(srcdir)/../../src/getdns/getdns_extra.h
|
||||
simple-concise.lo simple-concise.o: $(srcdir)/simple-concise.c $(srcdir)/getdns_libevent.h ../../src/config.h \
|
||||
../../src/getdns/getdns.h $(srcdir)/../../src/getdns/getdns_ext_libevent.h \
|
||||
$(srcdir)/../../src/getdns/getdns_extra.h
|
||||
simple-json-pointer.lo simple-json-pointer.o: $(srcdir)/simple-json-pointer.c $(srcdir)/getdns_libevent.h \
|
||||
../../src/config.h ../../src/getdns/getdns.h \
|
||||
$(srcdir)/../../src/getdns/getdns_ext_libevent.h $(srcdir)/../../src/getdns/getdns_extra.h
|
||||
synchronous-concise.lo synchronous-concise.o: $(srcdir)/synchronous-concise.c $(srcdir)/getdns_core_only.h \
|
||||
../../src/getdns/getdns.h
|
||||
synchronous-json-pointer.lo synchronous-json-pointer.o: $(srcdir)/synchronous-json-pointer.c $(srcdir)/getdns_core_only.h \
|
||||
|
|
|
|||
|
|
@ -0,0 +1,113 @@
|
|||
#include <assert.h>
|
||||
#include <inttypes.h>
|
||||
#include <stdio.h>
|
||||
#include <getdns_libevent.h>
|
||||
|
||||
/* Set up the callback function, which will also do the processing of the results */
|
||||
void callback(getdns_context *context,
|
||||
getdns_callback_type_t callback_type,
|
||||
getdns_dict *response,
|
||||
void *userarg,
|
||||
getdns_transaction_t transaction_id)
|
||||
{
|
||||
getdns_return_t r; /* Holder for all function returns */
|
||||
uint32_t status;
|
||||
getdns_list *just_address_answers;
|
||||
size_t length, i;
|
||||
|
||||
printf( "Callback for query \"%s\" with request ID %"PRIu64".\n"
|
||||
, (char *)userarg, transaction_id );
|
||||
|
||||
switch(callback_type) {
|
||||
case GETDNS_CALLBACK_CANCEL:
|
||||
printf("Transaction with ID %"PRIu64" was cancelled.\n", transaction_id);
|
||||
return;
|
||||
case GETDNS_CALLBACK_TIMEOUT:
|
||||
printf("Transaction with ID %"PRIu64" timed out.\n", transaction_id);
|
||||
return;
|
||||
case GETDNS_CALLBACK_ERROR:
|
||||
printf("An error occurred for transaction ID %"PRIu64".\n", transaction_id);
|
||||
return;
|
||||
default: break;
|
||||
}
|
||||
assert( callback_type == GETDNS_CALLBACK_COMPLETE );
|
||||
|
||||
if ((r = getdns_dict_get_int(response, "status", &status)))
|
||||
fprintf(stderr, "Could not get \"status\" from reponse");
|
||||
|
||||
else if (status != GETDNS_RESPSTATUS_GOOD)
|
||||
fprintf(stderr, "The search had no results, and a return value of %"PRIu32".\n", status);
|
||||
|
||||
else if ((r = getdns_dict_get_list(response, "just_address_answers", &just_address_answers)))
|
||||
fprintf(stderr, "Could not get \"just_address_answers\" from reponse");
|
||||
|
||||
else if ((r = getdns_list_get_length(just_address_answers, &length)))
|
||||
fprintf(stderr, "Could not get just_address_answers\' length");
|
||||
|
||||
else for (i = 0; i < length && r == GETDNS_RETURN_GOOD; i++) {
|
||||
getdns_dict *address;
|
||||
getdns_bindata *address_data;
|
||||
char *address_str;
|
||||
|
||||
if ((r = getdns_list_get_dict(just_address_answers, i, &address)))
|
||||
fprintf(stderr, "Could not get address %zu from just_address_answers", i);
|
||||
|
||||
else if ((r = getdns_dict_get_bindata(address, "address_data", &address_data)))
|
||||
fprintf(stderr, "Could not get \"address_data\" from address");
|
||||
|
||||
else if (!(address_str = getdns_display_ip_address(address_data))) {
|
||||
fprintf(stderr, "Could not convert address to string");
|
||||
r = GETDNS_RETURN_MEMORY_ERROR;
|
||||
}
|
||||
else {
|
||||
printf("The address is %s\n", address_str);
|
||||
free(address_str);
|
||||
}
|
||||
}
|
||||
if (r) {
|
||||
assert( r != GETDNS_RETURN_GOOD );
|
||||
fprintf(stderr, ": %d\n", r);
|
||||
}
|
||||
getdns_dict_destroy(response);
|
||||
}
|
||||
|
||||
int main()
|
||||
{
|
||||
getdns_return_t r; /* Holder for all function returns */
|
||||
getdns_context *context = NULL;
|
||||
struct event_base *event_base = NULL;
|
||||
getdns_dict *extensions = NULL;
|
||||
char *query_name = "www.example.com";
|
||||
/* Could add things here to help identify this call */
|
||||
char *userarg = query_name;
|
||||
getdns_transaction_t transaction_id;
|
||||
|
||||
if ((r = getdns_context_create(&context, 1)))
|
||||
fprintf(stderr, "Trying to create the context failed");
|
||||
|
||||
else if (!(event_base = event_base_new()))
|
||||
fprintf(stderr, "Trying to create the event base failed.\n");
|
||||
|
||||
else if ((r = getdns_extension_set_libevent_base(context, event_base)))
|
||||
fprintf(stderr, "Setting the event base failed");
|
||||
|
||||
else if ((r = getdns_address( context, "www.example.com", extensions
|
||||
, userarg, &transaction_id, callback)))
|
||||
fprintf(stderr, "Error scheduling asynchronous request");
|
||||
|
||||
else {
|
||||
printf("Request with transaction ID %"PRIu64" scheduled.\n", transaction_id);
|
||||
if (event_base_dispatch(event_base) < 0)
|
||||
fprintf(stderr, "Error dispatching events\n");
|
||||
}
|
||||
|
||||
/* Clean up */
|
||||
if (event_base)
|
||||
event_base_free(event_base);
|
||||
|
||||
if (context)
|
||||
getdns_context_destroy(context);
|
||||
|
||||
/* Assuming we get here, leave gracefully */
|
||||
exit(EXIT_SUCCESS);
|
||||
}
|
||||
|
|
@ -0,0 +1,107 @@
|
|||
#include <assert.h>
|
||||
#include <inttypes.h>
|
||||
#include <stdio.h>
|
||||
#include <getdns_libevent.h>
|
||||
|
||||
/* Set up the callback function, which will also do the processing of the results */
|
||||
void callback(getdns_context *context,
|
||||
getdns_callback_type_t callback_type,
|
||||
getdns_dict *response,
|
||||
void *userarg,
|
||||
getdns_transaction_t transaction_id)
|
||||
{
|
||||
getdns_return_t r; /* Holder for all function returns */
|
||||
uint32_t status;
|
||||
getdns_bindata *address_data;
|
||||
char *first = NULL, *second = NULL;
|
||||
|
||||
printf( "Callback for query \"%s\" with request ID %"PRIu64".\n"
|
||||
, (char *)userarg, transaction_id );
|
||||
|
||||
switch(callback_type) {
|
||||
case GETDNS_CALLBACK_CANCEL:
|
||||
printf("Transaction with ID %"PRIu64" was cancelled.\n", transaction_id);
|
||||
return;
|
||||
case GETDNS_CALLBACK_TIMEOUT:
|
||||
printf("Transaction with ID %"PRIu64" timed out.\n", transaction_id);
|
||||
return;
|
||||
case GETDNS_CALLBACK_ERROR:
|
||||
printf("An error occurred for transaction ID %"PRIu64".\n", transaction_id);
|
||||
return;
|
||||
default: break;
|
||||
}
|
||||
assert( callback_type == GETDNS_CALLBACK_COMPLETE );
|
||||
|
||||
if ((r = getdns_dict_get_int(response, "status", &status)))
|
||||
fprintf(stderr, "Could not get \"status\" from reponse");
|
||||
|
||||
else if (status != GETDNS_RESPSTATUS_GOOD)
|
||||
fprintf(stderr, "The search had no results, and a return value of %"PRIu32".\n", status);
|
||||
|
||||
else if ((r = getdns_dict_get_bindata(response, "/just_address_answers/0/address_data", &address_data)))
|
||||
fprintf(stderr, "Could not get first address");
|
||||
|
||||
else if (!(first = getdns_display_ip_address(address_data)))
|
||||
fprintf(stderr, "Could not convert first address to string\n");
|
||||
|
||||
else if ((r = getdns_dict_get_bindata(response, "/just_address_answers/1/address_data", &address_data)))
|
||||
fprintf(stderr, "Could not get second address");
|
||||
|
||||
else if (!(second = getdns_display_ip_address(address_data)))
|
||||
fprintf(stderr, "Could not convert second address to string\n");
|
||||
|
||||
if (first) {
|
||||
printf("The address is %s\n", first);
|
||||
free(first);
|
||||
}
|
||||
if (second) {
|
||||
printf("The address is %s\n", second);
|
||||
free(second);
|
||||
}
|
||||
if (r) {
|
||||
assert( r != GETDNS_RETURN_GOOD );
|
||||
fprintf(stderr, ": %d\n", r);
|
||||
}
|
||||
getdns_dict_destroy(response);
|
||||
}
|
||||
|
||||
int main()
|
||||
{
|
||||
getdns_return_t r; /* Holder for all function returns */
|
||||
getdns_context *context = NULL;
|
||||
struct event_base *event_base = NULL;
|
||||
getdns_dict *extensions = NULL;
|
||||
char *query_name = "www.example.com";
|
||||
/* Could add things here to help identify this call */
|
||||
char *userarg = query_name;
|
||||
getdns_transaction_t transaction_id;
|
||||
|
||||
if ((r = getdns_context_create(&context, 1)))
|
||||
fprintf(stderr, "Trying to create the context failed");
|
||||
|
||||
else if (!(event_base = event_base_new()))
|
||||
fprintf(stderr, "Trying to create the event base failed.\n");
|
||||
|
||||
else if ((r = getdns_extension_set_libevent_base(context, event_base)))
|
||||
fprintf(stderr, "Setting the event base failed");
|
||||
|
||||
else if ((r = getdns_address( context, "www.example.com", extensions
|
||||
, userarg, &transaction_id, callback)))
|
||||
fprintf(stderr, "Error scheduling asynchronous request");
|
||||
|
||||
else {
|
||||
printf("Request with transaction ID %"PRIu64" scheduled.\n", transaction_id);
|
||||
if (event_base_dispatch(event_base) < 0)
|
||||
fprintf(stderr, "Error dispatching events\n");
|
||||
}
|
||||
|
||||
/* Clean up */
|
||||
if (event_base)
|
||||
event_base_free(event_base);
|
||||
|
||||
if (context)
|
||||
getdns_context_destroy(context);
|
||||
|
||||
/* Assuming we get here, leave gracefully */
|
||||
exit(EXIT_SUCCESS);
|
||||
}
|
||||
|
|
@ -1,9 +1,10 @@
|
|||
#include <stdio.h>
|
||||
#include <assert.h>
|
||||
#include <getdns_core_only.h>
|
||||
|
||||
int main()
|
||||
{
|
||||
getdns_return_t r;
|
||||
getdns_return_t r; /* Holder for all function returns */
|
||||
getdns_context *context = NULL;
|
||||
getdns_dict *response = NULL;
|
||||
getdns_bindata *address_data;
|
||||
|
|
@ -43,11 +44,13 @@ int main()
|
|||
if (context)
|
||||
getdns_context_destroy(context);
|
||||
|
||||
/* Assuming we get here, leave gracefully */
|
||||
if (r) {
|
||||
assert( r != GETDNS_RETURN_GOOD );
|
||||
|
||||
fprintf(stderr, ": %d\n", r);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
else
|
||||
exit(EXIT_SUCCESS);
|
||||
/* Assuming we get here, leave gracefully */
|
||||
exit(EXIT_SUCCESS);
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue