1 |
#include "EXTERN.h" |
2 |
#include "perl.h" |
3 |
#include "XSUB.h" |
4 |
|
5 |
#include <poll.h> |
6 |
#include <adns.h> |
7 |
|
8 |
#include "EVAPI.h" |
9 |
|
10 |
static HV *stash; |
11 |
static adns_state ads; |
12 |
|
13 |
struct ctx |
14 |
{ |
15 |
SV *self; |
16 |
adns_query query; |
17 |
SV *cb; |
18 |
}; |
19 |
|
20 |
static SV * |
21 |
ha2sv (adns_rr_hostaddr *rr) |
22 |
{ |
23 |
AV *av = newAV (); |
24 |
av_push (av, newSVpv (rr->host, 0)); |
25 |
// TODO: add addresses |
26 |
|
27 |
return newRV_noinc ((SV *)av); |
28 |
} |
29 |
|
30 |
static void |
31 |
process () |
32 |
{ |
33 |
dSP; |
34 |
|
35 |
for (;;) |
36 |
{ |
37 |
int i; |
38 |
adns_query q = 0; |
39 |
adns_answer *a; |
40 |
void *ctx; |
41 |
SV *cb; |
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struct ctx *c; |
43 |
int r = adns_check (ads, &q, &a, &ctx); |
44 |
|
45 |
if (r) |
46 |
break; |
47 |
|
48 |
c = (struct ctx *)ctx; |
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cb = c->cb; |
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c->cb = 0; |
51 |
ev_unref (); |
52 |
SvREFCNT_dec (c->self); |
53 |
|
54 |
PUSHMARK (SP); |
55 |
|
56 |
EXTEND (SP, a->nrrs + 2); |
57 |
PUSHs (sv_2mortal (newSViv (a->status))); |
58 |
PUSHs (sv_2mortal (newSViv (a->expires))); |
59 |
|
60 |
for (i = 0; i < a->nrrs; ++i) |
61 |
{ |
62 |
SV *sv; |
63 |
|
64 |
switch (a->type & adns_r_unknown ? adns_r_unknown : a->type) |
65 |
{ |
66 |
case adns_r_ns_raw: |
67 |
case adns_r_cname: |
68 |
case adns_r_ptr: |
69 |
case adns_r_ptr_raw: |
70 |
sv = newSVpv (a->rrs.str [i], 0); |
71 |
break; |
72 |
|
73 |
case adns_r_txt: |
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{ |
75 |
AV *av = newAV (); |
76 |
adns_rr_intstr *rr = a->rrs.manyistr [i]; |
77 |
|
78 |
while (rr->str) |
79 |
{ |
80 |
av_push (av, newSVpvn (rr->str, rr->i)); |
81 |
++rr; |
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} |
83 |
|
84 |
sv = newRV_noinc ((SV *)av); |
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} |
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break; |
87 |
|
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case adns_r_a: |
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sv = newSVpv (inet_ntoa (a->rrs.inaddr [i]), 0); |
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break; |
91 |
|
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case adns_r_ns: |
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sv = ha2sv (a->rrs.hostaddr + i); |
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break; |
95 |
|
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case adns_r_hinfo: |
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{ |
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/* untested */ |
99 |
AV *av = newAV (); |
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adns_rr_intstrpair *rr = a->rrs.intstrpair + i; |
101 |
|
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av_push (av, newSVpvn (rr->array [0].str, rr->array [0].i)); |
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av_push (av, newSVpvn (rr->array [1].str, rr->array [1].i)); |
104 |
|
105 |
sv = newRV_noinc ((SV *)av); |
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} |
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break; |
108 |
|
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case adns_r_rp: |
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case adns_r_rp_raw: |
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{ |
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/* untested */ |
113 |
AV *av = newAV (); |
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adns_rr_strpair *rr = a->rrs.strpair + i; |
115 |
|
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av_push (av, newSVpv (rr->array [0], 0)); |
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av_push (av, newSVpv (rr->array [1], 0)); |
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|
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sv = newRV_noinc ((SV *)av); |
120 |
} |
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break; |
122 |
|
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case adns_r_mx: |
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{ |
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AV *av = newAV (); |
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adns_rr_inthostaddr *rr = a->rrs.inthostaddr + i; |
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|
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av_push (av, newSViv (rr->i)); |
129 |
av_push (av, ha2sv (&rr->ha)); |
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|
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sv = newRV_noinc ((SV *)av); |
132 |
} |
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break; |
134 |
|
135 |
case adns_r_mx_raw: |
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{ |
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AV *av = newAV (); |
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adns_rr_intstr *rr = a->rrs.intstr + i; |
139 |
|
140 |
av_push (av, newSViv (rr->i)); |
141 |
av_push (av, newSVpv (rr->str, 0)); |
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|
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sv = newRV_noinc ((SV *)av); |
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} |
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break; |
146 |
|
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case adns_r_soa: |
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case adns_r_soa_raw: |
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{ |
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AV *av = newAV (); |
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adns_rr_soa *rr = a->rrs.soa + i; |
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|
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av_push (av, newSVpv (rr->mname, 0)); |
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av_push (av, newSVpv (rr->rname, 0)); |
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av_push (av, newSVuv (rr->serial)); |
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av_push (av, newSVuv (rr->refresh)); |
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av_push (av, newSVuv (rr->retry)); |
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av_push (av, newSVuv (rr->expire)); |
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av_push (av, newSVuv (rr->minimum)); |
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|
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sv = newRV_noinc ((SV *)av); |
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} |
163 |
break; |
164 |
|
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case adns_r_srv_raw: |
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{ |
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AV *av = newAV (); |
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adns_rr_srvraw *rr = a->rrs.srvraw + i; |
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|
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av_push (av, newSViv (rr->priority)); |
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av_push (av, newSViv (rr->weight)); |
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av_push (av, newSViv (rr->port)); |
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av_push (av, newSVpv (rr->host, 0)); |
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|
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sv = newRV_noinc ((SV *)av); |
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} |
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break; |
178 |
|
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case adns_r_srv: |
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{ |
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AV *av = newAV (); |
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adns_rr_srvha *rr = a->rrs.srvha + i; |
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|
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av_push (av, newSViv (rr->priority)); |
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av_push (av, newSViv (rr->weight)); |
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av_push (av, newSViv (rr->port)); |
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av_push (av, ha2sv (&rr->ha)); |
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|
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sv = newRV_noinc ((SV *)av); |
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} |
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break; |
192 |
|
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case adns_r_unknown: |
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sv = newSVpvn (a->rrs.byteblock [i].data, a->rrs.byteblock [i].len); |
195 |
break; |
196 |
|
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default: |
198 |
case adns_r_addr: |
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sv = &PL_sv_undef; /* not supported */ |
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break; |
201 |
} |
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|
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PUSHs (sv_2mortal (sv)); |
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} |
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|
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free (a); |
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|
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PUTBACK; |
209 |
call_sv (cb, G_VOID | G_DISCARD | G_EVAL); |
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SPAGAIN; |
211 |
|
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SvREFCNT_dec (cb); |
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} |
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} |
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|
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static struct pollfd *fds; |
217 |
static int nfd, mfd; |
218 |
static ev_io *iow; |
219 |
static ev_timer tw; |
220 |
static ev_idle iw; |
221 |
static ev_prepare prepare_ev; |
222 |
static struct timeval tv_now; |
223 |
|
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static void |
225 |
update_now (EV_P) |
226 |
{ |
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ev_tstamp t = ev_now (); |
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|
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tv_now.tv_sec = (long)t; |
230 |
tv_now.tv_usec = (long)((t - (ev_tstamp)tv_now.tv_sec) * 1e-6); |
231 |
} |
232 |
|
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static void |
234 |
idle_cb (EV_P_ ev_idle *w, int revents) |
235 |
{ |
236 |
ev_idle_stop (EV_A_ w); |
237 |
} |
238 |
|
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static void |
240 |
timer_cb (EV_P_ ev_timer *w, int revents) |
241 |
{ |
242 |
} |
243 |
|
244 |
static void |
245 |
io_cb (EV_P_ ev_io *w, int revents) |
246 |
{ |
247 |
update_now (EV_A); |
248 |
|
249 |
if (revents & EV_READ ) adns_processreadable (ads, w->fd, &tv_now); |
250 |
if (revents & EV_WRITE) adns_processwriteable (ads, w->fd, &tv_now); |
251 |
} |
252 |
|
253 |
// create io watchers for each fd and a timer before blocking |
254 |
static void |
255 |
prepare_cb (EV_P_ ev_prepare *w, int revents) |
256 |
{ |
257 |
int i; |
258 |
int timeout = 3600000; |
259 |
|
260 |
if (ev_is_active (&tw)) |
261 |
{ |
262 |
ev_ref (); |
263 |
ev_timer_stop (EV_A_ &tw); |
264 |
} |
265 |
|
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if (ev_is_active (&iw)) |
267 |
ev_idle_stop (EV_A_ &iw); |
268 |
|
269 |
for (i = 0; i < nfd; ++i) |
270 |
{ |
271 |
ev_ref (); |
272 |
ev_io_stop (EV_A_ iow + i); |
273 |
} |
274 |
|
275 |
process (); |
276 |
|
277 |
update_now (EV_A); |
278 |
|
279 |
nfd = mfd; |
280 |
|
281 |
while (adns_beforepoll (ads, fds, &nfd, &timeout, &tv_now)) |
282 |
{ |
283 |
mfd = nfd; |
284 |
|
285 |
free (iow); iow = malloc (mfd * sizeof (ev_io)); |
286 |
free (fds); fds = malloc (mfd * sizeof (struct pollfd)); |
287 |
} |
288 |
|
289 |
ev_timer_set (&tw, timeout * 1e-3, 0.); |
290 |
ev_timer_start (EV_A_ &tw); |
291 |
ev_unref (); |
292 |
|
293 |
// create one ev_io per pollfd |
294 |
for (i = 0; i < nfd; ++i) |
295 |
{ |
296 |
ev_io_init (iow + i, io_cb, fds [i].fd, |
297 |
((fds [i].events & POLLIN ? EV_READ : 0) |
298 |
| (fds [i].events & POLLOUT ? EV_WRITE : 0))); |
299 |
|
300 |
ev_io_start (EV_A_ iow + i); |
301 |
ev_unref (); |
302 |
} |
303 |
} |
304 |
|
305 |
MODULE = EV::ADNS PACKAGE = EV::ADNS |
306 |
|
307 |
PROTOTYPES: ENABLE |
308 |
|
309 |
BOOT: |
310 |
{ |
311 |
stash = gv_stashpv ("EV::ADNS", 1); |
312 |
|
313 |
static const struct { |
314 |
const char *name; |
315 |
IV iv; |
316 |
} *civ, const_iv[] = { |
317 |
# define const_iv(name) { # name, (IV) adns_ ## name }, |
318 |
const_iv (if_none) |
319 |
const_iv (if_noenv) |
320 |
const_iv (if_noerrprint) |
321 |
const_iv (if_noserverwarn) |
322 |
const_iv (if_debug) |
323 |
const_iv (if_logpid) |
324 |
const_iv (if_noautosys) |
325 |
const_iv (if_eintr) |
326 |
const_iv (if_nosigpipe) |
327 |
const_iv (if_checkc_entex) |
328 |
const_iv (if_checkc_freq) |
329 |
|
330 |
const_iv (qf_none) |
331 |
const_iv (qf_search) |
332 |
const_iv (qf_usevc) |
333 |
const_iv (qf_owner) |
334 |
const_iv (qf_quoteok_query) |
335 |
const_iv (qf_quoteok_cname) |
336 |
const_iv (qf_quoteok_anshost) |
337 |
const_iv (qf_quotefail_cname) |
338 |
const_iv (qf_cname_loose) |
339 |
const_iv (qf_cname_forbid) |
340 |
|
341 |
const_iv (rrt_typemask) |
342 |
const_iv (_qtf_deref) |
343 |
const_iv (_qtf_mail822) |
344 |
const_iv (r_unknown) |
345 |
const_iv (r_none) |
346 |
const_iv (r_a) |
347 |
const_iv (r_ns_raw) |
348 |
const_iv (r_ns) |
349 |
const_iv (r_cname) |
350 |
const_iv (r_soa_raw) |
351 |
const_iv (r_soa) |
352 |
const_iv (r_ptr_raw) |
353 |
const_iv (r_ptr) |
354 |
const_iv (r_hinfo) |
355 |
const_iv (r_mx_raw) |
356 |
const_iv (r_mx) |
357 |
const_iv (r_txt) |
358 |
const_iv (r_rp_raw) |
359 |
const_iv (r_rp) |
360 |
const_iv (r_srv_raw) |
361 |
const_iv (r_srv) |
362 |
const_iv (r_addr) |
363 |
|
364 |
const_iv (s_ok) |
365 |
const_iv (s_nomemory) |
366 |
const_iv (s_unknownrrtype) |
367 |
const_iv (s_systemfail) |
368 |
const_iv (s_max_localfail) |
369 |
const_iv (s_timeout) |
370 |
const_iv (s_allservfail) |
371 |
const_iv (s_norecurse) |
372 |
const_iv (s_invalidresponse) |
373 |
const_iv (s_unknownformat) |
374 |
const_iv (s_max_remotefail) |
375 |
const_iv (s_rcodeservfail) |
376 |
const_iv (s_rcodeformaterror) |
377 |
const_iv (s_rcodenotimplemented) |
378 |
const_iv (s_rcoderefused) |
379 |
const_iv (s_rcodeunknown) |
380 |
const_iv (s_max_tempfail) |
381 |
const_iv (s_inconsistent) |
382 |
const_iv (s_prohibitedcname) |
383 |
const_iv (s_answerdomaininvalid) |
384 |
const_iv (s_answerdomaintoolong) |
385 |
const_iv (s_invaliddata) |
386 |
const_iv (s_max_misconfig) |
387 |
const_iv (s_querydomainwrong) |
388 |
const_iv (s_querydomaininvalid) |
389 |
const_iv (s_querydomaintoolong) |
390 |
const_iv (s_max_misquery) |
391 |
const_iv (s_nxdomain) |
392 |
const_iv (s_nodata) |
393 |
const_iv (s_max_permfail) |
394 |
}; |
395 |
|
396 |
for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) |
397 |
newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv)); |
398 |
|
399 |
I_EV_API ("EV::ADNS"); |
400 |
|
401 |
ev_prepare_init (&prepare_ev, prepare_cb); |
402 |
ev_prepare_start (EV_DEFAULT_ &prepare_ev); |
403 |
ev_unref (); |
404 |
|
405 |
ev_init (&iw, idle_cb); |
406 |
ev_init (&tw, timer_cb); |
407 |
|
408 |
adns_init (&ads, adns_if_noenv | adns_if_noerrprint | adns_if_noserverwarn | adns_if_noautosys, 0); |
409 |
} |
410 |
|
411 |
void submit (char *owner, int type, int flags, SV *cb) |
412 |
PPCODE: |
413 |
{ |
414 |
SV *csv = NEWSV (0, sizeof (struct ctx)); |
415 |
struct ctx *c = (struct ctx *)SvPVX (csv); |
416 |
int r = adns_submit (ads, owner, type, flags, (void *)c, &c->query); |
417 |
|
418 |
if (r) |
419 |
{ |
420 |
SvREFCNT_dec (csv); |
421 |
errno = r; |
422 |
XSRETURN_EMPTY; |
423 |
} |
424 |
else |
425 |
{ |
426 |
ev_ref (); |
427 |
SvPOK_only (csv); |
428 |
SvCUR_set (csv, sizeof (struct ctx)); |
429 |
|
430 |
c->self = csv; |
431 |
c->cb = newSVsv (cb); |
432 |
|
433 |
if (!ev_is_active (&iw)) |
434 |
ev_idle_start (EV_A_ &iw); |
435 |
|
436 |
if (GIMME_V != G_VOID) |
437 |
{ |
438 |
csv = sv_2mortal (newRV_inc (csv)); |
439 |
sv_bless (csv, stash); |
440 |
XPUSHs (csv); |
441 |
} |
442 |
} |
443 |
} |
444 |
|
445 |
void DESTROY (SV *req) |
446 |
ALIAS: |
447 |
cancel = 1 |
448 |
CODE: |
449 |
{ |
450 |
struct ctx *c; |
451 |
|
452 |
if (!(SvROK (req) && SvOBJECT (SvRV (req)) |
453 |
&& (SvSTASH (SvRV (req)) == stash))) |
454 |
croak ("object is not of type EV::ADNS"); |
455 |
|
456 |
c = (struct ctx *)SvPVX (SvRV (req)); |
457 |
|
458 |
if (c->cb) |
459 |
{ |
460 |
ev_unref (); |
461 |
SvREFCNT_dec (c->cb); |
462 |
c->cb = 0; |
463 |
adns_cancel (c->query); |
464 |
SvREFCNT_dec (c->self); |
465 |
} |
466 |
} |
467 |
|
468 |
|
469 |
|
470 |
|