C++ (Cpp) asr_async_free Examples

Example #1

File: getnameinfo_async.c Project: bocal/libasr

struct asr_query *
getnameinfo_async(const struct sockaddr *sa, socklen_t slen, char *host,
    size_t hostlen, char *serv, size_t servlen, int flags, void *asr)
{
	struct asr_ctx	 *ac;
	struct asr_query *as;

	ac = asr_use_resolver(asr);
	if ((as = asr_async_new(ac, ASR_GETNAMEINFO)) == NULL)
		goto abort; /* errno set */
	as->as_run = getnameinfo_async_run;

	if (sa->sa_family == AF_INET)
		memmove(&as->as.ni.sa.sa, sa, sizeof (as->as.ni.sa.sain));
	else if (sa->sa_family == AF_INET6)
		memmove(&as->as.ni.sa.sa, sa, sizeof (as->as.ni.sa.sain6));

#ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
	as->as.ni.sa.sa.sa_len = slen;
#endif
	as->as.ni.hostname = host;
	as->as.ni.hostnamelen = hostlen;
	as->as.ni.servname = serv;
	as->as.ni.servnamelen = servlen;
	as->as.ni.flags = flags;

	asr_ctx_unref(ac);
	return (as);

    abort:
	if (as)
		asr_async_free(as);
	asr_ctx_unref(ac);
	return (NULL);
}

Example #2

File: gethostnamadr_async.c Project: bingos/bitrig

struct async *
gethostbyname2_async(const char *name, int af, struct asr *asr)
{
	struct asr_ctx	*ac;
	struct async	*as;

	/* the original segfaults */
	if (name == NULL) {
		errno = EINVAL;
		return (NULL);
	}

	ac = asr_use_resolver(asr);
	if ((as = asr_async_new(ac, ASR_GETHOSTBYNAME)) == NULL)
		goto abort; /* errno set */
	as->as_run = gethostnamadr_async_run;

	as->as.hostnamadr.family = af;
	if (af == AF_INET)
		as->as.hostnamadr.addrlen = INADDRSZ;
	else if (af == AF_INET6)
		as->as.hostnamadr.addrlen = IN6ADDRSZ;
	as->as.hostnamadr.name = strdup(name);
	if (as->as.hostnamadr.name == NULL)
		goto abort; /* errno set */

	asr_ctx_unref(ac);
	return (as);

    abort:
	if (as)
		asr_async_free(as);
	asr_ctx_unref(ac);
	return (NULL);
}

Example #3

File: gethostnamadr_async.c Project: bingos/bitrig

struct async *
gethostbyaddr_async_ctx(const void *addr, socklen_t len, int af,
    struct asr_ctx *ac)
{
	struct async	*as;

	if ((as = asr_async_new(ac, ASR_GETHOSTBYADDR)) == NULL)
		goto abort; /* errno set */
	as->as_run = gethostnamadr_async_run;

	as->as.hostnamadr.family = af;
	as->as.hostnamadr.addrlen = len;
	if (len > 0)
		memmove(as->as.hostnamadr.addr, addr, (len > 16) ? 16 : len);

	return (as);

    abort:
	if (as)
		asr_async_free(as);
	return (NULL);
}

Example #4

File: getaddrinfo_async.c Project: ldm5180/openbsd-libc

struct asr_query *
getaddrinfo_async(const char *hostname, const char *servname,
	const struct addrinfo *hints, void *asr)
{
	struct asr_ctx		*ac;
	struct asr_query	*as;
	char			 alias[MAXDNAME];

	ac = asr_use_resolver(asr);
	if ((as = asr_async_new(ac, ASR_GETADDRINFO)) == NULL)
		goto abort; /* errno set */
	as->as_run = getaddrinfo_async_run;

	if (hostname) {
		if (asr_hostalias(ac, hostname, alias, sizeof(alias)))
			hostname = alias;
		if ((as->as.ai.hostname = strdup(hostname)) == NULL)
			goto abort; /* errno set */
	}
	if (servname && (as->as.ai.servname = strdup(servname)) == NULL)
		goto abort; /* errno set */
	if (hints)
		memmove(&as->as.ai.hints, hints, sizeof *hints);
	else {
		memset(&as->as.ai.hints, 0, sizeof as->as.ai.hints);
		as->as.ai.hints.ai_family = PF_UNSPEC;
		as->as.ai.hints.ai_flags = AI_ADDRCONFIG;
	}

	asr_ctx_unref(ac);
	return (as);
    abort:
	if (as)
		asr_async_free(as);
	asr_ctx_unref(ac);
	return (NULL);
}