當前位置: 首頁>>代碼示例>>Golang>>正文

Golang syscall.DnsQuery函數代碼示例

本文整理匯總了Golang中syscall.DnsQuery函數的典型用法代碼示例。如果您正苦於以下問題：Golang DnsQuery函數的具體用法？Golang DnsQuery怎麽用？Golang DnsQuery使用的例子？那麽, 這裏精選的函數代碼示例或許可以為您提供幫助。


在下文中一共展示了DnsQuery函數的15個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Golang代碼示例。

示例1: lookupSRV

func (*Resolver) lookupSRV(ctx context.Context, service, proto, name string) (string, []*SRV, error) {
	// TODO(bradfitz): finish ctx plumbing. Nothing currently depends on this.
	acquireThread()
	defer releaseThread()
	var target string
	if service == "" && proto == "" {
		target = name
	} else {
		target = "_" + service + "._" + proto + "." + name
	}
	var r *syscall.DNSRecord
	e := syscall.DnsQuery(target, syscall.DNS_TYPE_SRV, 0, nil, &r, nil)
	if e != nil {
		return "", nil, &DNSError{Err: winError("dnsquery", e).Error(), Name: target}
	}
	defer syscall.DnsRecordListFree(r, 1)

	srvs := make([]*SRV, 0, 10)
	for _, p := range validRecs(r, syscall.DNS_TYPE_SRV, target) {
		v := (*syscall.DNSSRVData)(unsafe.Pointer(&p.Data[0]))
		srvs = append(srvs, &SRV{absDomainName([]byte(syscall.UTF16ToString((*[256]uint16)(unsafe.Pointer(v.Target))[:]))), v.Port, v.Priority, v.Weight})
	}
	byPriorityWeight(srvs).sort()
	return absDomainName([]byte(target)), srvs, nil
}
開發者ID:achanda，項目名稱:go，代碼行數:25，代碼來源:lookup_windows.go

示例2: LookupCNAME

func LookupCNAME(name string) (cname string, err os.Error) {
	var r *syscall.DNSRecord
	e := syscall.DnsQuery(name, syscall.DNS_TYPE_CNAME, 0, nil, &r, nil)
	if int(e) != 0 {
		return "", os.NewSyscallError("LookupCNAME", int(e))
	}
	defer syscall.DnsRecordListFree(r, 1)
	if r != nil && r.Type == syscall.DNS_TYPE_CNAME {
		v := (*syscall.DNSPTRData)(unsafe.Pointer(&r.Data[0]))
		cname = syscall.UTF16ToString((*[256]uint16)(unsafe.Pointer(v.Host))[:]) + "."
	}
	return
}
開發者ID:WXB506，項目名稱:golang，代碼行數:13，代碼來源:lookup_windows.go

示例3: lookupNS

func lookupNS(name string) (ns []*NS, err error) {
	var r *syscall.DNSRecord
	e := syscall.DnsQuery(name, syscall.DNS_TYPE_NS, 0, nil, &r, nil)
	if e != nil {
		return nil, os.NewSyscallError("LookupNS", e)
	}
	defer syscall.DnsRecordListFree(r, 1)
	ns = make([]*NS, 0, 10)
	for p := r; p != nil && p.Type == syscall.DNS_TYPE_NS; p = p.Next {
		v := (*syscall.DNSPTRData)(unsafe.Pointer(&p.Data[0]))
		ns = append(ns, &NS{syscall.UTF16ToString((*[256]uint16)(unsafe.Pointer(v.Host))[:]) + "."})
	}
	return ns, nil
}
開發者ID:redcatmiss，項目名稱:gcc，代碼行數:14，代碼來源:lookup_windows.go

示例4: LookupMX

func LookupMX(name string) (mx []*MX, err os.Error) {
	var r *syscall.DNSRecord
	e := syscall.DnsQuery(name, syscall.DNS_TYPE_MX, 0, nil, &r, nil)
	if int(e) != 0 {
		return nil, os.NewSyscallError("LookupMX", int(e))
	}
	defer syscall.DnsRecordListFree(r, 1)
	mx = make([]*MX, 0, 10)
	for p := r; p != nil && p.Type == syscall.DNS_TYPE_MX; p = p.Next {
		v := (*syscall.DNSMXData)(unsafe.Pointer(&p.Data[0]))
		mx = append(mx, &MX{syscall.UTF16ToString((*[256]uint16)(unsafe.Pointer(v.NameExchange))[:]) + ".", v.Preference})
	}
	byPref(mx).sort()
	return mx, nil
}
開發者ID:WXB506，項目名稱:golang，代碼行數:15，代碼來源:lookup_windows.go

示例5: LookupSRV

func LookupSRV(service, proto, name string) (cname string, addrs []*SRV, err os.Error) {
	var r *syscall.DNSRecord
	target := "_" + service + "._" + proto + "." + name
	e := syscall.DnsQuery(target, syscall.DNS_TYPE_SRV, 0, nil, &r, nil)
	if int(e) != 0 {
		return "", nil, os.NewSyscallError("LookupSRV", int(e))
	}
	defer syscall.DnsRecordListFree(r, 1)
	addrs = make([]*SRV, 0, 10)
	for p := r; p != nil && p.Type == syscall.DNS_TYPE_SRV; p = p.Next {
		v := (*syscall.DNSSRVData)(unsafe.Pointer(&p.Data[0]))
		addrs = append(addrs, &SRV{syscall.UTF16ToString((*[256]uint16)(unsafe.Pointer(v.Target))[:]), v.Port, v.Priority, v.Weight})
	}
	byPriorityWeight(addrs).sort()
	return name, addrs, nil
}
開發者ID:WXB506，項目名稱:golang，代碼行數:16，代碼來源:lookup_windows.go

示例6: lookupNS

func lookupNS(name string) ([]*NS, error) {
	acquireThread()
	defer releaseThread()
	var r *syscall.DNSRecord
	e := syscall.DnsQuery(name, syscall.DNS_TYPE_NS, 0, nil, &r, nil)
	if e != nil {
		return nil, &DNSError{Err: os.NewSyscallError("dnsquery", e).Error(), Name: name}
	}
	defer syscall.DnsRecordListFree(r, 1)

	nss := make([]*NS, 0, 10)
	for _, p := range validRecs(r, syscall.DNS_TYPE_NS, name) {
		v := (*syscall.DNSPTRData)(unsafe.Pointer(&p.Data[0]))
		nss = append(nss, &NS{ensureEndDot(syscall.UTF16ToString((*[256]uint16)(unsafe.Pointer(v.Host))[:]))})
	}
	return nss, nil
}
開發者ID:harshavardhana，項目名稱:go，代碼行數:17，代碼來源:lookup_windows.go

示例7: lookupNS

func lookupNS(name string) (ns []*NS, err error) {
	acquireThread()
	defer releaseThread()
	var r *syscall.DNSRecord
	e := syscall.DnsQuery(name, syscall.DNS_TYPE_NS, 0, nil, &r, nil)
	if e != nil {
		return nil, os.NewSyscallError("LookupNS", e)
	}
	defer syscall.DnsRecordListFree(r, 1)

	ns = make([]*NS, 0, 10)
	for _, p := range validRecs(r, syscall.DNS_TYPE_NS, name) {
		v := (*syscall.DNSPTRData)(unsafe.Pointer(&p.Data[0]))
		ns = append(ns, &NS{syscall.UTF16ToString((*[256]uint16)(unsafe.Pointer(v.Host))[:]) + "."})
	}
	return ns, nil
}
開發者ID:klueska，項目名稱:go-akaros，代碼行數:17，代碼來源:lookup_windows.go

示例8: lookupTXT

func lookupTXT(name string) (txt []string, err error) {
	var r *syscall.DNSRecord
	e := syscall.DnsQuery(name, syscall.DNS_TYPE_TEXT, 0, nil, &r, nil)
	if e != nil {
		return nil, os.NewSyscallError("LookupTXT", e)
	}
	defer syscall.DnsRecordListFree(r, 1)
	txt = make([]string, 0, 10)
	if r != nil && r.Type == syscall.DNS_TYPE_TEXT {
		d := (*syscall.DNSTXTData)(unsafe.Pointer(&r.Data[0]))
		for _, v := range (*[1 << 10]*uint16)(unsafe.Pointer(&(d.StringArray[0])))[:d.StringCount] {
			s := syscall.UTF16ToString((*[1 << 20]uint16)(unsafe.Pointer(v))[:])
			txt = append(txt, s)
		}
	}
	return
}
開發者ID:krasin，項目名稱:go-deflate，代碼行數:17，代碼來源:lookup_windows.go

示例9: lookupNS

func (*Resolver) lookupNS(ctx context.Context, name string) ([]*NS, error) {
	// TODO(bradfitz): finish ctx plumbing. Nothing currently depends on this.
	acquireThread()
	defer releaseThread()
	var r *syscall.DNSRecord
	e := syscall.DnsQuery(name, syscall.DNS_TYPE_NS, 0, nil, &r, nil)
	if e != nil {
		return nil, &DNSError{Err: winError("dnsquery", e).Error(), Name: name}
	}
	defer syscall.DnsRecordListFree(r, 1)

	nss := make([]*NS, 0, 10)
	for _, p := range validRecs(r, syscall.DNS_TYPE_NS, name) {
		v := (*syscall.DNSPTRData)(unsafe.Pointer(&p.Data[0]))
		nss = append(nss, &NS{absDomainName([]byte(syscall.UTF16ToString((*[256]uint16)(unsafe.Pointer(v.Host))[:])))})
	}
	return nss, nil
}
開發者ID:achanda，項目名稱:go，代碼行數:18，代碼來源:lookup_windows.go

示例10: LookupAddr

func LookupAddr(addr string) (name []string, err os.Error) {
	arpa, err := reverseaddr(addr)
	if err != nil {
		return nil, err
	}
	var r *syscall.DNSRecord
	e := syscall.DnsQuery(arpa, syscall.DNS_TYPE_PTR, 0, nil, &r, nil)
	if int(e) != 0 {
		return nil, os.NewSyscallError("LookupAddr", int(e))
	}
	defer syscall.DnsRecordListFree(r, 1)
	name = make([]string, 0, 10)
	for p := r; p != nil && p.Type == syscall.DNS_TYPE_PTR; p = p.Next {
		v := (*syscall.DNSPTRData)(unsafe.Pointer(&p.Data[0]))
		name = append(name, syscall.UTF16ToString((*[256]uint16)(unsafe.Pointer(v.Host))[:]))
	}
	return name, nil
}
開發者ID:WXB506，項目名稱:golang，代碼行數:18，代碼來源:lookup_windows.go

示例11: lookupMX

func lookupMX(name string) ([]*MX, error) {
	acquireThread()
	defer releaseThread()
	var r *syscall.DNSRecord
	e := syscall.DnsQuery(name, syscall.DNS_TYPE_MX, 0, nil, &r, nil)
	if e != nil {
		return nil, &DNSError{Err: os.NewSyscallError("dnsquery", e).Error(), Name: name}
	}
	defer syscall.DnsRecordListFree(r, 1)

	mxs := make([]*MX, 0, 10)
	for _, p := range validRecs(r, syscall.DNS_TYPE_MX, name) {
		v := (*syscall.DNSMXData)(unsafe.Pointer(&p.Data[0]))
		mxs = append(mxs, &MX{ensureEndDot(syscall.UTF16ToString((*[256]uint16)(unsafe.Pointer(v.NameExchange))[:])), v.Preference})
	}
	byPref(mxs).sort()
	return mxs, nil
}
開發者ID:harshavardhana，項目名稱:go，代碼行數:18，代碼來源:lookup_windows.go

示例12: lookupMX

func lookupMX(name string) (mx []*MX, err error) {
	acquireThread()
	defer releaseThread()
	var r *syscall.DNSRecord
	e := syscall.DnsQuery(name, syscall.DNS_TYPE_MX, 0, nil, &r, nil)
	if e != nil {
		return nil, os.NewSyscallError("LookupMX", e)
	}
	defer syscall.DnsRecordListFree(r, 1)

	mx = make([]*MX, 0, 10)
	for _, p := range validRecs(r, syscall.DNS_TYPE_MX, name) {
		v := (*syscall.DNSMXData)(unsafe.Pointer(&p.Data[0]))
		mx = append(mx, &MX{syscall.UTF16ToString((*[256]uint16)(unsafe.Pointer(v.NameExchange))[:]) + ".", v.Preference})
	}
	byPref(mx).sort()
	return mx, nil
}
開發者ID:klueska，項目名稱:go-akaros，代碼行數:18，代碼來源:lookup_windows.go

示例13: lookupCNAME

func lookupCNAME(name string) (string, error) {
	acquireThread()
	defer releaseThread()
	var r *syscall.DNSRecord
	e := syscall.DnsQuery(name, syscall.DNS_TYPE_CNAME, 0, nil, &r, nil)
	// windows returns DNS_INFO_NO_RECORDS if there are no CNAME-s
	if errno, ok := e.(syscall.Errno); ok && errno == syscall.DNS_INFO_NO_RECORDS {
		// if there are no aliases, the canonical name is the input name
		return ensureEndDot(name), nil
	}
	if e != nil {
		return "", &DNSError{Err: os.NewSyscallError("dnsquery", e).Error(), Name: name}
	}
	defer syscall.DnsRecordListFree(r, 1)

	resolved := resolveCNAME(syscall.StringToUTF16Ptr(name), r)
	cname := syscall.UTF16ToString((*[256]uint16)(unsafe.Pointer(resolved))[:])
	return ensureEndDot(cname), nil
}
開發者ID:harshavardhana，項目名稱:go，代碼行數:19，代碼來源:lookup_windows.go

示例14: lookupMX

func (*Resolver) lookupMX(ctx context.Context, name string) ([]*MX, error) {
	// TODO(bradfitz): finish ctx plumbing. Nothing currently depends on this.
	acquireThread()
	defer releaseThread()
	var r *syscall.DNSRecord
	e := syscall.DnsQuery(name, syscall.DNS_TYPE_MX, 0, nil, &r, nil)
	if e != nil {
		return nil, &DNSError{Err: winError("dnsquery", e).Error(), Name: name}
	}
	defer syscall.DnsRecordListFree(r, 1)

	mxs := make([]*MX, 0, 10)
	for _, p := range validRecs(r, syscall.DNS_TYPE_MX, name) {
		v := (*syscall.DNSMXData)(unsafe.Pointer(&p.Data[0]))
		mxs = append(mxs, &MX{absDomainName([]byte(syscall.UTF16ToString((*[256]uint16)(unsafe.Pointer(v.NameExchange))[:]))), v.Preference})
	}
	byPref(mxs).sort()
	return mxs, nil
}
開發者ID:achanda，項目名稱:go，代碼行數:19，代碼來源:lookup_windows.go

示例15: lookupCNAME

func (*Resolver) lookupCNAME(ctx context.Context, name string) (string, error) {
	// TODO(bradfitz): finish ctx plumbing. Nothing currently depends on this.
	acquireThread()
	defer releaseThread()
	var r *syscall.DNSRecord
	e := syscall.DnsQuery(name, syscall.DNS_TYPE_CNAME, 0, nil, &r, nil)
	// windows returns DNS_INFO_NO_RECORDS if there are no CNAME-s
	if errno, ok := e.(syscall.Errno); ok && errno == syscall.DNS_INFO_NO_RECORDS {
		// if there are no aliases, the canonical name is the input name
		return absDomainName([]byte(name)), nil
	}
	if e != nil {
		return "", &DNSError{Err: winError("dnsquery", e).Error(), Name: name}
	}
	defer syscall.DnsRecordListFree(r, 1)

	resolved := resolveCNAME(syscall.StringToUTF16Ptr(name), r)
	cname := syscall.UTF16ToString((*[256]uint16)(unsafe.Pointer(resolved))[:])
	return absDomainName([]byte(cname)), nil
}
開發者ID:achanda，項目名稱:go，代碼行數:20，代碼來源:lookup_windows.go


注：本文中的syscall.DnsQuery函數示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。