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ruby--ruby/ext/socket/extconf.rb
Nobuyoshi Nakada cb18deee72
Substitute from the actual netinet6/in6.h 
Xcode no longer links the system include files directory to `/usr`.
Extract the actual header file path from cpp output.
2022-11-04 17:38:28 +09:00

690 lines
21 KiB
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# frozen_string_literal: false
require 'mkmf'
AF_INET6_SOCKET_CREATION_TEST = <<EOF
#include <sys/types.h>
#ifndef _WIN32
#include <sys/socket.h>
#endif
int
main(void)
{
socket(AF_INET6, SOCK_STREAM, 0);
return 0;
}
EOF
GETADDRINFO_GETNAMEINFO_TEST = <<EOF
#include <stdlib.h>
#ifndef EXIT_SUCCESS
#define EXIT_SUCCESS 0
#endif
#ifndef EXIT_FAILURE
#define EXIT_FAILURE 1
#endif
#ifndef AF_LOCAL
#define AF_LOCAL AF_UNIX
#endif
int
main(void)
{
int passive, gaierr, inet4 = 0, inet6 = 0;
struct addrinfo hints, *ai, *aitop;
char straddr[INET6_ADDRSTRLEN], strport[16];
#ifdef _WIN32
WSADATA retdata;
WSAStartup(MAKEWORD(2, 0), &retdata);
#endif
for (passive = 0; passive <= 1; passive++) {
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_UNSPEC;
hints.ai_protocol = IPPROTO_TCP;
hints.ai_flags = passive ? AI_PASSIVE : 0;
hints.ai_socktype = SOCK_STREAM;
if ((gaierr = getaddrinfo(NULL, "54321", &hints, &aitop)) != 0) {
(void)gai_strerror(gaierr);
goto bad;
}
for (ai = aitop; ai; ai = ai->ai_next) {
if (ai->ai_family == AF_LOCAL) continue;
if (ai->ai_addr == NULL)
goto bad;
#if defined(_AIX)
if (ai->ai_family == AF_INET6 && passive) {
inet6++;
continue;
}
ai->ai_addr->sa_len = ai->ai_addrlen;
ai->ai_addr->sa_family = ai->ai_family;
#endif
if (ai->ai_addrlen == 0 ||
getnameinfo(ai->ai_addr, ai->ai_addrlen,
straddr, sizeof(straddr), strport, sizeof(strport),
NI_NUMERICHOST|NI_NUMERICSERV) != 0) {
goto bad;
}
if (strcmp(strport, "54321") != 0) {
goto bad;
}
switch (ai->ai_family) {
case AF_INET:
if (passive) {
if (strcmp(straddr, "0.0.0.0") != 0) {
goto bad;
}
} else {
if (strcmp(straddr, "127.0.0.1") != 0) {
goto bad;
}
}
inet4++;
break;
case AF_INET6:
if (passive) {
if (strcmp(straddr, "::") != 0) {
goto bad;
}
} else {
if (strcmp(straddr, "::1") != 0) {
goto bad;
}
}
inet6++;
break;
case AF_UNSPEC:
goto bad;
break;
default:
/* another family support? */
break;
}
}
}
if (!(inet4 == 0 || inet4 == 2))
goto bad;
if (!(inet6 == 0 || inet6 == 2))
goto bad;
if (aitop)
freeaddrinfo(aitop);
return EXIT_SUCCESS;
bad:
if (aitop)
freeaddrinfo(aitop);
return EXIT_FAILURE;
}
EOF
RECVMSG_WITH_MSG_PEEK_ALLOCATE_FD_TEST = <<'EOF'
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <unistd.h>
int main(int argc, char *argv[])
{
int ps[2], sv[2];
int ret;
ssize_t ss;
int s_fd, r_fd;
struct msghdr s_msg, r_msg;
union {
struct cmsghdr hdr;
char dummy[CMSG_SPACE(sizeof(int))];
} s_cmsg, r_cmsg;
struct iovec s_iov, r_iov;
char s_buf[1], r_buf[1];
struct stat s_statbuf, r_statbuf;
ret = pipe(ps);
if (ret == -1) { perror("pipe"); exit(EXIT_FAILURE); }
s_fd = ps[0];
ret = socketpair(AF_UNIX, SOCK_DGRAM, 0, sv);
if (ret == -1) { perror("socketpair"); exit(EXIT_FAILURE); }
s_msg.msg_name = NULL;
s_msg.msg_namelen = 0;
s_msg.msg_iov = &s_iov;
s_msg.msg_iovlen = 1;
s_msg.msg_control = &s_cmsg;
s_msg.msg_controllen = CMSG_SPACE(sizeof(int));;
s_msg.msg_flags = 0;
s_iov.iov_base = &s_buf;
s_iov.iov_len = sizeof(s_buf);
s_buf[0] = 'a';
s_cmsg.hdr.cmsg_len = CMSG_LEN(sizeof(int));
s_cmsg.hdr.cmsg_level = SOL_SOCKET;
s_cmsg.hdr.cmsg_type = SCM_RIGHTS;
memcpy(CMSG_DATA(&s_cmsg.hdr), (char *)&s_fd, sizeof(int));
ss = sendmsg(sv[0], &s_msg, 0);
if (ss == -1) { perror("sendmsg"); exit(EXIT_FAILURE); }
r_msg.msg_name = NULL;
r_msg.msg_namelen = 0;
r_msg.msg_iov = &r_iov;
r_msg.msg_iovlen = 1;
r_msg.msg_control = &r_cmsg;
r_msg.msg_controllen = CMSG_SPACE(sizeof(int));
r_msg.msg_flags = 0;
r_iov.iov_base = &r_buf;
r_iov.iov_len = sizeof(r_buf);
r_buf[0] = '0';
memset(&r_cmsg, 0xff, CMSG_SPACE(sizeof(int)));
ss = recvmsg(sv[1], &r_msg, MSG_PEEK);
if (ss == -1) { perror("recvmsg"); exit(EXIT_FAILURE); }
if (ss != 1) {
fprintf(stderr, "unexpected return value from recvmsg: %ld\n", (long)ss);
exit(EXIT_FAILURE);
}
if (r_buf[0] != 'a') {
fprintf(stderr, "unexpected return data from recvmsg: 0x%02x\n", r_buf[0]);
exit(EXIT_FAILURE);
}
if (r_msg.msg_controllen < CMSG_LEN(sizeof(int))) {
fprintf(stderr, "unexpected: r_msg.msg_controllen < CMSG_LEN(sizeof(int)) not hold: %ld\n",
(long)r_msg.msg_controllen);
exit(EXIT_FAILURE);
}
if (r_cmsg.hdr.cmsg_len < CMSG_LEN(sizeof(int))) {
fprintf(stderr, "unexpected: r_cmsg.hdr.cmsg_len < CMSG_LEN(sizeof(int)) not hold: %ld\n",
(long)r_cmsg.hdr.cmsg_len);
exit(EXIT_FAILURE);
}
memcpy((char *)&r_fd, CMSG_DATA(&r_cmsg.hdr), sizeof(int));
if (r_fd < 0) {
fprintf(stderr, "negative r_fd: %d\n", r_fd);
exit(EXIT_FAILURE);
}
if (r_fd == s_fd) {
fprintf(stderr, "r_fd and s_fd is same: %d\n", r_fd);
exit(EXIT_FAILURE);
}
ret = fstat(s_fd, &s_statbuf);
if (ret == -1) { perror("fstat(s_fd)"); exit(EXIT_FAILURE); }
ret = fstat(r_fd, &r_statbuf);
if (ret == -1) { perror("fstat(r_fd)"); exit(EXIT_FAILURE); }
if (s_statbuf.st_dev != r_statbuf.st_dev ||
s_statbuf.st_ino != r_statbuf.st_ino) {
fprintf(stderr, "dev/ino doesn't match: s_fd:%ld/%ld r_fd:%ld/%ld\n",
(long)s_statbuf.st_dev, (long)s_statbuf.st_ino,
(long)r_statbuf.st_dev, (long)r_statbuf.st_ino);
exit(EXIT_FAILURE);
}
return EXIT_SUCCESS;
}
EOF
def test_recvmsg_with_msg_peek_creates_fds(headers)
case RUBY_PLATFORM
when /linux/
# Linux 2.6.38 allocate fds by recvmsg with MSG_PEEK.
close_fds = true
when /bsd|darwin/
# FreeBSD 8.2.0, NetBSD 5 and MacOS X Snow Leopard doesn't
# allocate fds by recvmsg with MSG_PEEK.
# [ruby-dev:44189]
# http://bugs.ruby-lang.org/issues/5075
close_fds = false
when /cygwin/
# Cygwin doesn't support fd passing.
# http://cygwin.com/ml/cygwin/2003-09/msg01808.html
close_fds = false
else
close_fds = nil
end
if !CROSS_COMPILING
if checking_for("recvmsg() with MSG_PEEK allocate file descriptors") {
try_run(cpp_include(headers) + RECVMSG_WITH_MSG_PEEK_ALLOCATE_FD_TEST)
}
if close_fds == false
warn "unexpected fd-passing recvmsg() with MSG_PEEK behavor on #{RUBY_PLATFORM}: fd allocation unexpected."
elsif close_fds == nil
puts "info: #{RUBY_PLATFORM} recvmsg() with MSG_PEEK allocates fds on fd-passing."
end
close_fds = true
else
if close_fds == true
warn "unexpected fd-passing recvmsg() with MSG_PEEK behavor on #{RUBY_PLATFORM}: fd allocation expected."
elsif close_fds == nil
puts "info: #{RUBY_PLATFORM}: recvmsg() with MSG_PEEK doesn't allocates fds on fd-passing."
end
close_fds = false
end
end
if close_fds == nil
abort <<EOS
Fatal: cannot test fd-passing recvmsg() with MSG_PEEK behavor
because cross-compilation for #{RUBY_PLATFORM}.
If recvmsg() with MSG_PEEK allocates fds on fd passing:
--enable-close-fds-by-recvmsg-with-peek
If recvmsg() with MSG_PEEK doesn't allocate fds on fd passing:
--disable-close-fds-by-recvmsg-with-peek
EOS
end
close_fds
end
$INCFLAGS << " -I$(topdir) -I$(top_srcdir)"
if /darwin/ =~ RUBY_PLATFORM
# For IPv6 extension header access on OS X 10.7+ [Bug #8517]
$CFLAGS << " -D__APPLE_USE_RFC_3542"
end
headers = []
unless $mswin or $mingw
headers = %w<sys/types.h netdb.h string.h sys/socket.h netinet/in.h>
end
%w[
sys/uio.h
xti.h
netinet/in_systm.h
netinet/tcp.h
netinet/tcp_fsm.h
netinet/udp.h
arpa/inet.h
netpacket/packet.h
net/ethernet.h
sys/un.h
ifaddrs.h
sys/ioctl.h
sys/sockio.h
net/if.h
sys/param.h
sys/ucred.h
ucred.h
net/if_dl.h
arpa/nameser.h
resolv.h
].each {|h|
if have_header(h, headers)
headers << h
end
}
have_struct_member("struct sockaddr", "sa_len", headers) # 4.4BSD
have_struct_member("struct sockaddr_in", "sin_len", headers) # 4.4BSD
have_struct_member("struct sockaddr_in6", "sin6_len", headers) # 4.4BSD
if have_type("struct sockaddr_un", headers) # POSIX
have_struct_member("struct sockaddr_un", "sun_len", headers) # 4.4BSD
end
have_type("struct sockaddr_dl", headers) # AF_LINK address. 4.4BSD since Net2
have_type("struct sockaddr_storage", headers)
have_type("struct addrinfo", headers)
if have_type("socklen_t", headers)
if try_static_assert("sizeof(socklen_t) >= sizeof(long)", headers)
$defs << "-DRSTRING_SOCKLEN=(socklen_t)RSTRING_LEN"
end
end
have_type("struct in_pktinfo", headers) {|src|
src.sub(%r'^/\*top\*/', '\&'"\n#if defined(IPPROTO_IP) && defined(IP_PKTINFO)") <<
"#else\n" << "#error\n" << ">>>>>> no in_pktinfo <<<<<<\n" << "#endif\n"
} and have_struct_member("struct in_pktinfo", "ipi_spec_dst", headers)
have_type("struct in6_pktinfo", headers) {|src|
src.sub(%r'^/\*top\*/', '\&'"\n#if defined(IPPROTO_IPV6) && defined(IPV6_PKTINFO)") <<
"#else\n" << "#error\n" << ">>>>>> no in6_pktinfo <<<<<<\n" << "#endif\n"
}
have_type("struct sockcred", headers)
have_type("struct cmsgcred", headers)
have_type("struct ip_mreq", headers) # 4.4BSD
have_type("struct ip_mreqn", headers) # Linux 2.4
have_type("struct ipv6_mreq", headers) # RFC 3493
have_msg_control = nil
have_msg_control = have_struct_member('struct msghdr', 'msg_control', headers) unless $mswin or $mingw
have_struct_member('struct msghdr', 'msg_accrights', headers)
if have_type("struct tcp_info", headers)
have_const("TCP_ESTABLISHED", headers)
have_const("TCP_SYN_SENT", headers)
have_const("TCP_SYN_RECV", headers)
have_const("TCP_FIN_WAIT1", headers)
have_const("TCP_FIN_WAIT2", headers)
have_const("TCP_TIME_WAIT", headers)
have_const("TCP_CLOSE", headers)
have_const("TCP_CLOSE_WAIT", headers)
have_const("TCP_LAST_ACK", headers)
have_const("TCP_LISTEN", headers)
have_const("TCP_CLOSING", headers)
have_struct_member('struct tcp_info', 'tcpi_state', headers)
if /solaris/ !~ RUBY_PLATFORM
have_struct_member('struct tcp_info', 'tcpi_ca_state', headers)
end
have_struct_member('struct tcp_info', 'tcpi_retransmits', headers)
have_struct_member('struct tcp_info', 'tcpi_probes', headers)
have_struct_member('struct tcp_info', 'tcpi_backoff', headers)
have_struct_member('struct tcp_info', 'tcpi_options', headers)
have_struct_member('struct tcp_info', 'tcpi_snd_wscale', headers)
have_struct_member('struct tcp_info', 'tcpi_rcv_wscale', headers)
have_struct_member('struct tcp_info', 'tcpi_rto', headers)
have_struct_member('struct tcp_info', 'tcpi_ato', headers)
have_struct_member('struct tcp_info', 'tcpi_snd_mss', headers)
have_struct_member('struct tcp_info', 'tcpi_rcv_mss', headers)
have_struct_member('struct tcp_info', 'tcpi_unacked', headers)
have_struct_member('struct tcp_info', 'tcpi_sacked', headers)
have_struct_member('struct tcp_info', 'tcpi_lost', headers)
have_struct_member('struct tcp_info', 'tcpi_retrans', headers)
have_struct_member('struct tcp_info', 'tcpi_fackets', headers)
have_struct_member('struct tcp_info', 'tcpi_last_data_sent', headers)
have_struct_member('struct tcp_info', 'tcpi_last_ack_sent', headers)
have_struct_member('struct tcp_info', 'tcpi_last_data_recv', headers)
have_struct_member('struct tcp_info', 'tcpi_last_ack_recv', headers)
have_struct_member('struct tcp_info', 'tcpi_pmtu', headers)
have_struct_member('struct tcp_info', 'tcpi_rcv_ssthresh', headers)
have_struct_member('struct tcp_info', 'tcpi_rtt', headers)
have_struct_member('struct tcp_info', 'tcpi_rttvar', headers)
have_struct_member('struct tcp_info', 'tcpi_snd_ssthresh', headers)
have_struct_member('struct tcp_info', 'tcpi_snd_cwnd', headers)
have_struct_member('struct tcp_info', 'tcpi_advmss', headers)
have_struct_member('struct tcp_info', 'tcpi_reordering', headers)
have_struct_member('struct tcp_info', 'tcpi_rcv_rtt', headers)
have_struct_member('struct tcp_info', 'tcpi_rcv_space', headers)
have_struct_member('struct tcp_info', 'tcpi_total_retrans', headers)
# FreeBSD extension
have_struct_member('struct tcp_info', 'tcpi_snd_wnd', headers)
have_struct_member('struct tcp_info', 'tcpi_snd_bwnd', headers)
have_struct_member('struct tcp_info', 'tcpi_snd_nxt', headers)
have_struct_member('struct tcp_info', 'tcpi_rcv_nxt', headers)
have_struct_member('struct tcp_info', 'tcpi_toe_tid', headers)
have_struct_member('struct tcp_info', 'tcpi_snd_rexmitpack', headers)
have_struct_member('struct tcp_info', 'tcpi_rcv_ooopack', headers)
have_struct_member('struct tcp_info', 'tcpi_snd_zerowin', headers)
end
case RUBY_PLATFORM
when /mswin(32|64)|mingw/
test_func = "WSACleanup"
have_library("iphlpapi")
have_library("ws2_32", "WSACleanup", headers)
when /cygwin/
test_func = "socket(0,0,0)"
when /haiku/
test_func = "socket(0,0,0)"
have_library("network", "socket(0,0,0)", headers)
else
test_func = "socket(0,0,0)"
have_library("nsl", 't_open("", 0, (struct t_info *)NULL)', headers) # SunOS
have_library("socket", "socket(0,0,0)", headers) # SunOS
end
if have_func(test_func, headers)
have_func("sendmsg(0, (struct msghdr *)NULL, 0)", headers) # POSIX
have_recvmsg = have_func("recvmsg(0, (struct msghdr *)NULL, 0)", headers) # POSIX
have_func("freehostent((struct hostent *)NULL)", headers) # RFC 2553
have_func("freeaddrinfo((struct addrinfo *)NULL)", headers) # RFC 2553
if /haiku/ !~ RUBY_PLATFORM and
have_func("gai_strerror(0)", headers) # POSIX
if checking_for("gai_strerror() returns const pointer") {!try_compile(<<EOF)}
#{cpp_include(headers)}
#include <stdlib.h>
void
conftest_gai_strerror_is_const()
{
*gai_strerror(0) = 0;
}
EOF
$defs << "-DGAI_STRERROR_CONST"
end
end
have_func("accept4", headers)
have_func('inet_ntop(0, (const void *)0, (char *)0, 0)', headers) or
have_func("inet_ntoa(*(struct in_addr *)NULL)", headers)
have_func('inet_pton(0, "", (void *)0)', headers) or
have_func('inet_aton("", (struct in_addr *)0)', headers)
have_func('getservbyport(0, "")', headers)
have_func("getifaddrs((struct ifaddrs **)NULL)", headers)
have_struct_member("struct if_data", "ifi_vhid", headers) # FreeBSD
have_func("getpeereid", headers)
have_func("getpeerucred(0, (ucred_t **)NULL)", headers) # SunOS
have_func_decl = proc do |name, headers|
# check if there is a declaration of <name> by trying to declare
# both "int <name>(void)" and "void <name>(void)"
# (at least one attempt should fail if there is a declaration)
if !checking_for("declaration of #{name}()") {!%w[int void].all? {|ret| try_compile(<<EOF)}}
#{cpp_include(headers)}
#{ret} #{name}(void);
EOF
$defs << "-DNEED_#{name.tr_cpp}_DECL"
end
end
if have_func('if_indextoname(0, "")', headers)
have_func_decl["if_indextoname", headers]
end
if have_func('if_nametoindex("")', headers)
have_func_decl["if_nametoindex", headers]
end
have_func("hsterror", headers)
have_func('getipnodebyname("", 0, 0, (int *)0)', headers) # RFC 2553
have_func('gethostbyname2("", 0)', headers) # RFC 2133
have_func("socketpair(0, 0, 0, 0)", headers)
unless have_func("gethostname((char *)0, 0)", headers)
have_func("uname((struct utsname *)NULL)", headers)
end
ipv6 = false
default_ipv6 = /haiku/ !~ RUBY_PLATFORM
if enable_config("ipv6", default_ipv6)
if checking_for("ipv6") {try_link(AF_INET6_SOCKET_CREATION_TEST)}
$defs << "-DENABLE_IPV6" << "-DINET6"
ipv6 = true
end
end
if ipv6
if $mingw
$CPPFLAGS << " -D_WIN32_WINNT=0x501" unless $CPPFLAGS.include?("_WIN32_WINNT")
end
ipv6lib = nil
class << (fmt = "unknown")
def %(s) s || self end
end
idirs, ldirs = dir_config("inet6", %w[/usr/inet6 /usr/local/v6].find {|d| File.directory?(d)})
checking_for("ipv6 type", fmt) do
if have_macro("IPV6_INRIA_VERSION", "netinet/in.h")
"inria"
elsif have_macro("__KAME__", "netinet/in.h")
have_library(ipv6lib = "inet6")
"kame"
elsif have_macro("_TOSHIBA_INET6", "sys/param.h")
have_library(ipv6lib = "inet6") and "toshiba"
elsif have_macro("__V6D__", "sys/v6config.h")
have_library(ipv6lib = "v6") and "v6d"
elsif have_macro("_ZETA_MINAMI_INET6", "sys/param.h")
have_library(ipv6lib = "inet6") and "zeta"
elsif have_library("inet6")
"inet6"
end
end or not ipv6lib or abort <<EOS
Fatal: no #{ipv6lib} library found. cannot continue.
You need to fetch lib#{ipv6lib}.a from appropriate
ipv6 kit and compile beforehand.
EOS
end
if !have_macro("IPPROTO_IPV6", headers) && have_const("IPPROTO_IPV6", headers)
IO.read(File.join(File.dirname(__FILE__), "mkconstants.rb")).sub(/\A.*^__END__$/m, '').split(/\r?\n/).grep(/\AIPPROTO_\w*/){$&}.each {|name|
have_const(name, headers) unless $defs.include?("-DHAVE_CONST_#{name.upcase}")
}
end
if enable_config("close-fds-by-recvmsg-with-peek") {
have_msg_control && have_recvmsg &&
have_const('AF_UNIX', headers) && have_const('SCM_RIGHTS', headers) &&
test_recvmsg_with_msg_peek_creates_fds(headers)
}
$defs << "-DFD_PASSING_WORK_WITH_RECVMSG_MSG_PEEK"
end
case enable_config("wide-getaddrinfo")
when true
getaddr_info_ok = :wide
when nil, false
getaddr_info_ok = (:wide if getaddr_info_ok.nil?)
if have_func("getnameinfo", headers) and have_func("getaddrinfo", headers)
if CROSS_COMPILING ||
$mingw || $mswin ||
checking_for("system getaddrinfo working") {
try_run(cpp_include(headers) + GETADDRINFO_GETNAMEINFO_TEST)
}
getaddr_info_ok = :os
end
end
else
raise "unexpected enable_config() value"
end
if ipv6 and not getaddr_info_ok
abort <<EOS
Fatal: --enable-ipv6 is specified, and your OS seems to support IPv6 feature.
But your getaddrinfo() and getnameinfo() are appeared to be broken. Sorry,
you cannot compile IPv6 socket classes with broken these functions.
You can try --enable-wide-getaddrinfo.
EOS
end
case with_config("lookup-order-hack", "UNSPEC")
when "INET"
$defs << "-DLOOKUP_ORDER_HACK_INET"
when "INET6"
$defs << "-DLOOKUP_ORDER_HACK_INET6"
when "UNSPEC"
# nothing special
else
abort <<EOS
Fatal: invalid value for --with-lookup-order-hack (expected INET, INET6 or UNSPEC)
EOS
end
$objs = [
"init.#{$OBJEXT}",
"constants.#{$OBJEXT}",
"basicsocket.#{$OBJEXT}",
"socket.#{$OBJEXT}",
"ipsocket.#{$OBJEXT}",
"tcpsocket.#{$OBJEXT}",
"tcpserver.#{$OBJEXT}",
"sockssocket.#{$OBJEXT}",
"udpsocket.#{$OBJEXT}",
"unixsocket.#{$OBJEXT}",
"unixserver.#{$OBJEXT}",
"option.#{$OBJEXT}",
"ancdata.#{$OBJEXT}",
"raddrinfo.#{$OBJEXT}",
"ifaddr.#{$OBJEXT}"
]
if getaddr_info_ok == :wide
if !have_type("struct in6_addr", headers) and have_type("struct in_addr6", headers)
$defs.pop(2)
$defs << "-Din_addr6=in6_addr"
end
if have_struct_member("struct in6_addr", "s6_addr8", headers)
$defs[-1] = "-Ds6_addr=s6_addr8"
end
if ipv6 == "kame" && have_struct_member("struct in6_addr", "s6_addr32", headers)
$defs[-1] = "-DFAITH"
end
$CPPFLAGS="-I. "+$CPPFLAGS
$objs += ["getaddrinfo.#{$OBJEXT}"]
$objs += ["getnameinfo.#{$OBJEXT}"]
$defs << "-DGETADDRINFO_EMU"
end
# workaround for recent Windows SDK
$defs << "-DIPPROTO_IPV6=IPPROTO_IPV6" if $defs.include?("-DHAVE_CONST_IPPROTO_IPV6") && !have_macro("IPPROTO_IPV6")
$distcleanfiles << "constants.h" << "constdefs.*"
if enable_config("socks", ENV["SOCKS_SERVER"])
if have_library("socks5", "SOCKSinit")
$defs << "-DSOCKS5" << "-DSOCKS"
elsif have_library("socksd", "Rconnect") || have_library("socks", "Rconnect")
$defs << "-DSOCKS"
end
end
hdr = "netinet6/in6.h"
/darwin/ =~ RUBY_PLATFORM and
checking_for("if apple's #{hdr} needs s6_addr patch") {!try_compile(<<"SRC", nil, :werror=>true)} and
#include <netinet/in.h>
int t(struct in6_addr *addr) {return IN6_IS_ADDR_UNSPECIFIED(addr);}
SRC
checking_for("fixing apple's #{hdr}", "%s") do
file = xpopen(%w"clang -include netinet/in.h -E -xc -", in: IO::NULL) do |f|
re = %r[^# *\d+ *"(.*/netinet/in\.h)"]
Logging.message " grep(#{re})\n"
f.read[re, 1]
end
Logging.message "Substitute from #{file}\n"
in6 = File.read(file)
if in6.gsub!(/\*\(const\s+__uint32_t\s+\*\)\(const\s+void\s+\*\)\(&(\(\w+\))->s6_addr\[(\d+)\]\)/) do
i, r = $2.to_i.divmod(4)
if r.zero?
"#$1->__u6_addr.__u6_addr32[#{i}]"
else
$&
end
end
FileUtils.mkdir_p(File.dirname(hdr))
open(hdr, "w") {|f| f.write(in6)}
$distcleanfiles << hdr
$distcleandirs << File.dirname(hdr)
"done"
else
"not needed"
end
end
create_makefile("socket")
end
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