OXIESEC PANEL

Name	Size	Modified	Perms
📁 ..	-	12/01/2022 06:13:58 PM	rwxr-xr-x
📄 addrselect.go	9.44 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 addrselect_test.go	6.22 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 cgo_aix.go	582 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 cgo_android.go	272 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 cgo_bsd.go	353 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 cgo_linux.go	642 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 cgo_netbsd.go	276 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 cgo_openbsd.go	276 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 cgo_resnew.go	590 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 cgo_resold.go	579 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 cgo_socknew.go	753 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 cgo_sockold.go	852 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 cgo_solaris.go	343 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 cgo_stub.go	1.03 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 cgo_unix.go	9.49 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 cgo_unix_test.go	1.84 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 cgo_windows.go	402 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 conf.go	9.65 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 conf_netcgo.go	370 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 conf_test.go	9.7 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 conn_test.go	1.73 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 dial.go	22.73 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 dial_test.go	26.1 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 dial_unix_test.go	2.77 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 dnsclient.go	5.57 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 dnsclient_test.go	1.51 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 dnsclient_unix.go	22.72 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 dnsclient_unix_test.go	57.08 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 dnsconfig.go	1.61 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 dnsconfig_unix.go	4.01 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 dnsconfig_unix_test.go	6.69 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 dnsconfig_windows.go	1.42 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 dnsname_test.go	1.98 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 error_plan9.go	224 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 error_plan9_test.go	476 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 error_posix.go	542 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 error_posix_test.go	981 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 error_test.go	19.72 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 error_unix.go	372 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 error_unix_test.go	762 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 error_windows.go	355 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 error_windows_test.go	796 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 example_test.go	8.45 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 external_test.go	4.07 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 fcntl_libc_test.go	374 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 fcntl_syscall_test.go	496 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 fd_plan9.go	3.56 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 fd_posix.go	4.29 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 fd_unix.go	5.37 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 fd_windows.go	4.62 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 file.go	1.69 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 file_plan9.go	2.68 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 file_stub.go	489 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 file_test.go	6.38 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 file_unix.go	2.46 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 file_windows.go	521 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 hook.go	628 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 hook_plan9.go	283 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 hook_unix.go	690 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 hook_windows.go	875 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 hosts.go	3.02 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 hosts_test.go	4.58 KB	12/01/2022 06:12:59 PM	rw-r--r--
📁 http	-	12/01/2022 06:13:56 PM	rwxr-xr-x
📄 interface.go	7.17 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 interface_aix.go	4.4 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 interface_bsd.go	2.76 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 interface_bsd_test.go	1.44 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 interface_bsdvar.go	718 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 interface_darwin.go	1.29 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 interface_freebsd.go	1.29 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 interface_linux.go	6.9 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 interface_linux_test.go	3.65 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 interface_plan9.go	4.68 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 interface_solaris.go	2.07 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 interface_stub.go	812 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 interface_test.go	9.67 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 interface_unix_test.go	4.73 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 interface_windows.go	5.41 KB	12/01/2022 06:12:59 PM	rw-r--r--
📁 internal	-	12/01/2022 06:13:56 PM	rwxr-xr-x
📄 ip.go	17.72 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 ip_test.go	25.33 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 iprawsock.go	7.08 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 iprawsock_plan9.go	874 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 iprawsock_posix.go	3.41 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 iprawsock_test.go	5.62 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 ipsock.go	8.97 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 ipsock_plan9.go	7.5 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 ipsock_plan9_test.go	645 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 ipsock_posix.go	7.66 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 ipsock_test.go	6.81 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 listen_test.go	20.51 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 lookup.go	27.82 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 lookup_fake.go	1.64 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 lookup_plan9.go	8.86 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 lookup_test.go	35.13 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 lookup_unix.go	4.46 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 lookup_windows.go	12.53 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 lookup_windows_test.go	8.5 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 mac.go	1.88 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 mac_test.go	3.26 KB	12/01/2022 06:12:59 PM	rw-r--r--
📁 mail	-	12/01/2022 06:13:56 PM	rwxr-xr-x
📄 main_cloexec_test.go	693 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 main_conf_test.go	922 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 main_noconf_test.go	505 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 main_plan9_test.go	392 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 main_posix_test.go	1.38 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 main_test.go	7.08 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 main_unix_test.go	1.19 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 main_windows_test.go	1.08 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 mockserver_test.go	10.79 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 net.go	23.25 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 net_fake.go	6.59 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 net_test.go	13.88 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 net_windows_test.go	16.28 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 netgo.go	427 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 netgo_unix_test.go	656 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📁 netip	-	12/01/2022 06:13:56 PM	rwxr-xr-x
📄 nss.go	3.64 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 nss_test.go	3.35 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 packetconn_test.go	3.03 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 parse.go	7.06 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 parse_test.go	1.46 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 pipe.go	5.43 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 pipe_test.go	1.2 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 platform_test.go	4.57 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 port.go	1.46 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 port_test.go	1.34 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 port_unix.go	1.24 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 protoconn_test.go	7.19 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 rawconn.go	1.89 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 rawconn_stub_test.go	631 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 rawconn_test.go	4.32 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 rawconn_unix_test.go	2.96 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 rawconn_windows_test.go	3.12 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 resolverdialfunc_test.go	8.29 KB	12/01/2022 06:12:59 PM	rw-r--r--
📁 rpc	-	12/01/2022 06:13:56 PM	rwxr-xr-x
📄 sendfile_linux.go	1.1 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 sendfile_stub.go	344 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 sendfile_test.go	6.72 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 sendfile_unix_alt.go	2.01 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 sendfile_windows.go	1.02 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 server_test.go	11.01 KB	12/01/2022 06:12:59 PM	rw-r--r--
📁 smtp	-	12/01/2022 06:13:56 PM	rwxr-xr-x
📄 sock_bsd.go	918 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 sock_cloexec.go	741 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 sock_linux.go	1.53 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 sock_linux_test.go	545 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 sock_plan9.go	262 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 sock_posix.go	6.78 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 sock_stub.go	390 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 sock_windows.go	1.16 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 sockaddr_posix.go	914 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 sockopt_aix.go	1.43 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 sockopt_bsd.go	2.21 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 sockopt_linux.go	1.25 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 sockopt_plan9.go	406 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 sockopt_posix.go	2.62 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 sockopt_solaris.go	1.25 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 sockopt_stub.go	742 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 sockopt_windows.go	1.51 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 sockoptip_bsdvar.go	867 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 sockoptip_linux.go	735 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 sockoptip_posix.go	1.38 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 sockoptip_stub.go	767 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 sockoptip_windows.go	819 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 splice_linux.go	1.09 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 splice_stub.go	287 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 splice_test.go	10.05 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 sys_cloexec.go	962 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 tcpsock.go	10.61 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 tcpsock_plan9.go	2.21 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 tcpsock_posix.go	5.31 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 tcpsock_test.go	17.32 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 tcpsock_unix_test.go	2.35 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 tcpsockopt_darwin.go	770 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 tcpsockopt_dragonfly.go	698 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 tcpsockopt_openbsd.go	365 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 tcpsockopt_plan9.go	525 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 tcpsockopt_posix.go	442 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 tcpsockopt_solaris.go	1.15 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 tcpsockopt_stub.go	397 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 tcpsockopt_unix.go	722 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 tcpsockopt_windows.go	741 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📁 testdata	-	12/01/2022 06:13:56 PM	rwxr-xr-x
📁 textproto	-	12/01/2022 06:13:56 PM	rwxr-xr-x
📄 timeout_test.go	28.56 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 udpsock.go	11.83 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 udpsock_plan9.go	4.64 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 udpsock_plan9_test.go	1.31 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 udpsock_posix.go	6.78 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 udpsock_test.go	16.29 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 unixsock.go	10.17 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 unixsock_linux_test.go	2.29 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 unixsock_plan9.go	1.24 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 unixsock_posix.go	5.87 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 unixsock_readmsg_cloexec.go	654 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 unixsock_readmsg_cmsg_cloexec.go	332 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 unixsock_readmsg_other.go	275 bytes	12/01/2022 06:12:59 PM	rw-r--r--
📄 unixsock_readmsg_test.go	2.48 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 unixsock_test.go	10.42 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 unixsock_windows_test.go	2.03 KB	12/01/2022 06:12:59 PM	rw-r--r--
📁 url	-	12/01/2022 06:13:56 PM	rwxr-xr-x
📄 write_unix_test.go	1.61 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 writev_test.go	4.97 KB	12/01/2022 06:12:59 PM	rw-r--r--
📄 writev_unix.go	733 bytes	12/01/2022 06:12:59 PM	rw-r--r--

Editing: parse.go

// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Simple file i/o and string manipulation, to avoid
// depending on strconv and bufio and strings.

package net

import (
	"internal/bytealg"
	"io"
	"os"
	"time"
)

type file struct {
	file  *os.File
	data  []byte
	atEOF bool
}

func (f *file) close() { f.file.Close() }

func (f *file) getLineFromData() (s string, ok bool) {
	data := f.data
	i := 0
	for i = 0; i < len(data); i++ {
		if data[i] == '\n' {
			s = string(data[0:i])
			ok = true
			// move data
			i++
			n := len(data) - i
			copy(data[0:], data[i:])
			f.data = data[0:n]
			return
		}
	}
	if f.atEOF && len(f.data) > 0 {
		// EOF, return all we have
		s = string(data)
		f.data = f.data[0:0]
		ok = true
	}
	return
}

func (f *file) readLine() (s string, ok bool) {
	if s, ok = f.getLineFromData(); ok {
		return
	}
	if len(f.data) < cap(f.data) {
		ln := len(f.data)
		n, err := io.ReadFull(f.file, f.data[ln:cap(f.data)])
		if n >= 0 {
			f.data = f.data[0 : ln+n]
		}
		if err == io.EOF || err == io.ErrUnexpectedEOF {
			f.atEOF = true
		}
	}
	s, ok = f.getLineFromData()
	return
}

func open(name string) (*file, error) {
	fd, err := os.Open(name)
	if err != nil {
		return nil, err
	}
	return &file{fd, make([]byte, 0, 64*1024), false}, nil
}

func stat(name string) (mtime time.Time, size int64, err error) {
	st, err := os.Stat(name)
	if err != nil {
		return time.Time{}, 0, err
	}
	return st.ModTime(), st.Size(), nil
}

// Count occurrences in s of any bytes in t.
func countAnyByte(s string, t string) int {
	n := 0
	for i := 0; i < len(s); i++ {
		if bytealg.IndexByteString(t, s[i]) >= 0 {
			n++
		}
	}
	return n
}

// Split s at any bytes in t.
func splitAtBytes(s string, t string) []string {
	a := make([]string, 1+countAnyByte(s, t))
	n := 0
	last := 0
	for i := 0; i < len(s); i++ {
		if bytealg.IndexByteString(t, s[i]) >= 0 {
			if last < i {
				a[n] = s[last:i]
				n++
			}
			last = i + 1
		}
	}
	if last < len(s) {
		a[n] = s[last:]
		n++
	}
	return a[0:n]
}

func getFields(s string) []string { return splitAtBytes(s, " \r\t\n") }

// Bigger than we need, not too big to worry about overflow
const big = 0xFFFFFF

// Decimal to integer.
// Returns number, characters consumed, success.
func dtoi(s string) (n int, i int, ok bool) {
	n = 0
	for i = 0; i < len(s) && '0' <= s[i] && s[i] <= '9'; i++ {
		n = n*10 + int(s[i]-'0')
		if n >= big {
			return big, i, false
		}
	}
	if i == 0 {
		return 0, 0, false
	}
	return n, i, true
}

// Hexadecimal to integer.
// Returns number, characters consumed, success.
func xtoi(s string) (n int, i int, ok bool) {
	n = 0
	for i = 0; i < len(s); i++ {
		if '0' <= s[i] && s[i] <= '9' {
			n *= 16
			n += int(s[i] - '0')
		} else if 'a' <= s[i] && s[i] <= 'f' {
			n *= 16
			n += int(s[i]-'a') + 10
		} else if 'A' <= s[i] && s[i] <= 'F' {
			n *= 16
			n += int(s[i]-'A') + 10
		} else {
			break
		}
		if n >= big {
			return 0, i, false
		}
	}
	if i == 0 {
		return 0, i, false
	}
	return n, i, true
}

// xtoi2 converts the next two hex digits of s into a byte.
// If s is longer than 2 bytes then the third byte must be e.
// If the first two bytes of s are not hex digits or the third byte
// does not match e, false is returned.
func xtoi2(s string, e byte) (byte, bool) {
	if len(s) > 2 && s[2] != e {
		return 0, false
	}
	n, ei, ok := xtoi(s[:2])
	return byte(n), ok && ei == 2
}

// Convert i to a hexadecimal string. Leading zeros are not printed.
func appendHex(dst []byte, i uint32) []byte {
	if i == 0 {
		return append(dst, '0')
	}
	for j := 7; j >= 0; j-- {
		v := i >> uint(j*4)
		if v > 0 {
			dst = append(dst, hexDigit[v&0xf])
		}
	}
	return dst
}

// Number of occurrences of b in s.
func count(s string, b byte) int {
	n := 0
	for i := 0; i < len(s); i++ {
		if s[i] == b {
			n++
		}
	}
	return n
}

// Index of rightmost occurrence of b in s.
func last(s string, b byte) int {
	i := len(s)
	for i--; i >= 0; i-- {
		if s[i] == b {
			break
		}
	}
	return i
}

// hasUpperCase tells whether the given string contains at least one upper-case.
func hasUpperCase(s string) bool {
	for i := range s {
		if 'A' <= s[i] && s[i] <= 'Z' {
			return true
		}
	}
	return false
}

// lowerASCIIBytes makes x ASCII lowercase in-place.
func lowerASCIIBytes(x []byte) {
	for i, b := range x {
		if 'A' <= b && b <= 'Z' {
			x[i] += 'a' - 'A'
		}
	}
}

// lowerASCII returns the ASCII lowercase version of b.
func lowerASCII(b byte) byte {
	if 'A' <= b && b <= 'Z' {
		return b + ('a' - 'A')
	}
	return b
}

// trimSpace returns x without any leading or trailing ASCII whitespace.
func trimSpace(x []byte) []byte {
	for len(x) > 0 && isSpace(x[0]) {
		x = x[1:]
	}
	for len(x) > 0 && isSpace(x[len(x)-1]) {
		x = x[:len(x)-1]
	}
	return x
}

// isSpace reports whether b is an ASCII space character.
func isSpace(b byte) bool {
	return b == ' ' || b == '\t' || b == '\n' || b == '\r'
}

// removeComment returns line, removing any '#' byte and any following
// bytes.
func removeComment(line []byte) []byte {
	if i := bytealg.IndexByte(line, '#'); i != -1 {
		return line[:i]
	}
	return line
}

// foreachLine runs fn on each line of x.
// Each line (except for possibly the last) ends in '\n'.
// It returns the first non-nil error returned by fn.
func foreachLine(x []byte, fn func(line []byte) error) error {
	for len(x) > 0 {
		nl := bytealg.IndexByte(x, '\n')
		if nl == -1 {
			return fn(x)
		}
		line := x[:nl+1]
		x = x[nl+1:]
		if err := fn(line); err != nil {
			return err
		}
	}
	return nil
}

// foreachField runs fn on each non-empty run of non-space bytes in x.
// It returns the first non-nil error returned by fn.
func foreachField(x []byte, fn func(field []byte) error) error {
	x = trimSpace(x)
	for len(x) > 0 {
		sp := bytealg.IndexByte(x, ' ')
		if sp == -1 {
			return fn(x)
		}
		if field := trimSpace(x[:sp]); len(field) > 0 {
			if err := fn(field); err != nil {
				return err
			}
		}
		x = trimSpace(x[sp+1:])
	}
	return nil
}

// stringsHasSuffix is strings.HasSuffix. It reports whether s ends in
// suffix.
func stringsHasSuffix(s, suffix string) bool {
	return len(s) >= len(suffix) && s[len(s)-len(suffix):] == suffix
}

// stringsHasSuffixFold reports whether s ends in suffix,
// ASCII-case-insensitively.
func stringsHasSuffixFold(s, suffix string) bool {
	return len(s) >= len(suffix) && stringsEqualFold(s[len(s)-len(suffix):], suffix)
}

// stringsHasPrefix is strings.HasPrefix. It reports whether s begins with prefix.
func stringsHasPrefix(s, prefix string) bool {
	return len(s) >= len(prefix) && s[:len(prefix)] == prefix
}

// stringsEqualFold is strings.EqualFold, ASCII only. It reports whether s and t
// are equal, ASCII-case-insensitively.
func stringsEqualFold(s, t string) bool {
	if len(s) != len(t) {
		return false
	}
	for i := 0; i < len(s); i++ {
		if lowerASCII(s[i]) != lowerASCII(t[i]) {
			return false
		}
	}
	return true
}

func readFull(r io.Reader) (all []byte, err error) {
	buf := make([]byte, 1024)
	for {
		n, err := r.Read(buf)
		all = append(all, buf[:n]...)
		if err == io.EOF {
			return all, nil
		}
		if err != nil {
			return nil, err
		}
	}
}