Initial revision

lib/socket/Makefile

@@ -0,0 +1,39 @@
+
+CFLAGS	= -O -D_MINIX -D_POSIX_SOURCE -I../../servers
+CC1	= $(CC) $(CFLAGS) -c
+
+LIBRARY	= ../libsocket.a
+all:	$(LIBRARY)
+
+OBJECTS	= \
+	$(LIBRARY)(socket.o) \
+	$(LIBRARY)(listen.o) \
+	$(LIBRARY)(connect.o)	\
+	$(LIBRARY)(shutdown.o)	\
+	$(LIBRARY)(extra.o)	\
+	$(LIBRARY)(bind.o)
+
+$(LIBRARY):	$(OBJECTS)
+	aal cr $@ *.o
+	rm *.o
+
+$(LIBRARY)(socket.o):	socket.c
+	$(CC1) socket.c
+
+$(LIBRARY)(connect.o):	connect.c
+	$(CC1) connect.c
+
+$(LIBRARY)(listen.o):	listen.c
+	$(CC1) listen.c
+
+$(LIBRARY)(shutdown.o):	shutdown.c
+	$(CC1) shutdown.c
+
+$(LIBRARY)(extra.o):	extra.c
+	$(CC1) extra.c
+
+$(LIBRARY)(bind.o):	bind.c
+	$(CC1) bind.c
+
+clean:
+	-rm *.o $(LIBRARY)

lib/socket/bind.c

@@ -0,0 +1,34 @@
+
+/* bsd-socket(2)-lookalike */
+
+#include <errno.h>
+#include <string.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <net/ioctl.h>
+#include <net/gen/socket.h>
+#include <net/gen/emu.h>
+#include <net/gen/tcp.h>
+#include <net/gen/in.h>
+#include <net/gen/tcp_hdr.h>
+#include <net/gen/tcp_io.h>
+
+int
+bind(int s, struct sockaddr *addr, socklen_t len)
+{
+	nwio_tcpconf_t tcpconf;
+	struct sockaddr_in *in_local;
+
+	in_local = (struct sockaddr_in *) addr;
+
+	memset(&tcpconf, 0, sizeof(tcpconf));
+	tcpconf.nwtc_flags = NWTC_EXCL | NWTC_LP_SET | NWTC_UNSET_RA | NWTC_UNSET_RP;
+	tcpconf.nwtc_locport = in_local->sin_port;
+
+	if(ioctl(s, NWIOSTCPCONF, &tcpconf) < 0)
+		return -1;
+
+	return 0;
+}
+

lib/socket/connect.c

@@ -0,0 +1,46 @@
+
+/* bsd-socket(2)-lookalike */
+
+#include <errno.h>
+#include <string.h>
+#include <sys/types.h>
+#include <net/ioctl.h>
+#include <net/gen/in.h>
+#include <net/gen/socket.h>
+#include <net/gen/emu.h>
+#include <net/gen/tcp.h>
+#include <net/gen/tcp_hdr.h>
+#include <net/gen/tcp_io.h>
+
+int
+connect(int s, struct sockaddr *peer, socklen_t len)
+{
+	nwio_tcpcl_t tcpopt;
+	nwio_tcpconf_t tcpconf;
+	struct sockaddr_in *in_peer;
+
+	if(!peer || peer->sa_family != AF_INET ||
+		len != sizeof(struct sockaddr_in)) {
+		errno = EAFNOSUPPORT;
+		return -1;
+	}
+
+	in_peer = (struct sockaddr_in *) peer;
+
+	memset(&tcpconf, 0, sizeof(tcpconf));
+	tcpconf.nwtc_flags = NWTC_EXCL | NWTC_LP_SEL | NWTC_SET_RA | NWTC_SET_RP;
+	tcpconf.nwtc_remaddr = in_peer->sin_addr.s_addr;
+	tcpconf.nwtc_remport = in_peer->sin_port;
+
+	if(ioctl(s, NWIOSTCPCONF, &tcpconf) < 0)
+		return -1;
+
+	tcpopt.nwtcl_flags = 0;
+	tcpopt.nwtcl_ttl = 0;
+
+	if(ioctl(s, NWIOTCPCONN, &tcpopt) < 0)
+		return -1;
+
+	return 0;
+}
+

lib/socket/extra.c

@@ -0,0 +1,26 @@
+
+/* bsd-socket(2)-lookalike */
+
+#include <errno.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <net/gen/socket.h>
+#include <net/gen/emu.h>
+#include <net/gen/tcp.h>
+#include <net/gen/in.h>
+#include <net/gen/tcp_hdr.h>
+#include <net/gen/tcp_io.h>
+
+ssize_t
+recv(int s, void *buf, size_t len, int flags)
+{
+	return read(s, buf, len);
+}
+
+ssize_t
+send(int s, void *buf, size_t len, int flags)
+{
+	return write(s, buf, len);
+}
+

lib/socket/listen.c

@@ -0,0 +1,26 @@
+
+/* bsd-socket(2)-lookalike */
+
+#include <sys/types.h>
+#include <net/gen/socket.h>
+#include <net/gen/in.h>
+#include <net/ioctl.h>
+#include <net/gen/emu.h>
+#include <net/gen/tcp.h>
+#include <net/gen/tcp_hdr.h>
+#include <net/gen/tcp_io.h>
+
+int
+listen(int s, int backlog)
+{
+	nwio_tcpcl_t tcpopt;
+	struct sockaddr_in *in_peer;
+
+	tcpopt.nwtcl_flags = tcpopt.nwtcl_ttl = 0;
+
+	if(ioctl(s, NWIOTCPLISTEN, &tcpopt) < 0)
+		return -1;
+
+	return 0;
+}
+

lib/socket/shutdown.c

@@ -0,0 +1,26 @@
+
+/* bsd-socket(2)-lookalike */
+
+#include <errno.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <net/gen/socket.h>
+#include <net/gen/emu.h>
+#include <net/gen/tcp.h>
+#include <net/gen/in.h>
+#include <net/gen/tcp_hdr.h>
+#include <net/gen/tcp_io.h>
+
+int
+shutdown(int s, int how)
+{
+	nwio_tcpcl_t tcpopt;
+
+	if(ioctl(s, NWIOTCPSHUTDOWN, NULL) < 0)
+		return -1;
+
+	return 0;
+}
+

lib/socket/socket.c

@@ -0,0 +1,56 @@
+
+/* bsd-socket(2)-lookalike */
+
+#include <errno.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <net/gen/socket.h>
+#include <net/gen/emu.h>
+#include <net/gen/tcp.h>
+#include <net/gen/in.h>
+#include <net/gen/tcp_hdr.h>
+#include <net/gen/tcp_io.h>
+
+int
+socket(int domain, int type, int protocol)
+{
+	int s;
+	char *tcpname;
+
+	/* only domain is AF_INET */
+	if(domain != AF_INET) {
+		errno = EAFNOSUPPORT;
+		return -1;
+	}
+
+	/* only type is SOCK_STREAM */
+	if(type != SOCK_STREAM) {
+		errno = EPROTONOSUPPORT;
+		return -1;
+	}
+
+	/* default protocol type is TCP */
+	if(!protocol)
+		protocol = IPPROTO_TCP;
+
+	/* only protocol type is TCP */
+	if(protocol != IPPROTO_TCP) {
+		errno = EPROTONOSUPPORT;
+		return -1;
+	}
+
+	/* tcp device name */
+	if(!tcpname)
+		tcpname = getenv("TCP_DEVICE");
+	if(!tcpname || !*tcpname)
+		tcpname = "/dev/tcp";
+
+	if((s = open(tcpname, O_RDWR)) < 0) {
+		perror(tcpname);
+		return -1;
+	}
+
+	return s;
+}
+