socket.c: use rb_syserr_fail

* ext/socket/socket.c (rsock_syserr_fail_host_port): add errno
  argument version anduse rb_syserr_fail_str() instead of
  rb_sys_fail_str() with restoring errno.
* ext/socket/socket.c (rsock_syserr_fail_path): ditto, and
  rb_syserr_fail().
* ext/socket/socket.c (rsock_sys_fail_sockaddr): ditto, use
  rsock_syserr_fail_raddrinfo().
* ext/socket/socket.c (rsock_sys_fail_raddrinfo): ditto.
* ext/socket/socket.c (setup_domain_and_type): ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44496 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

Conflicts:
	ChangeLog

Author: tmm1

ext/socket/rubysocket.h

@@ -374,6 +374,12 @@ void rsock_init_sockopt(void);
 void rsock_init_sockifaddr(void);
 void rsock_init_socket_init(void);
 
+NORETURN(void rsock_syserr_fail_host_port(int err, const char *, VALUE, VALUE));
+NORETURN(void rsock_syserr_fail_path(int err, const char *, VALUE));
+NORETURN(void rsock_syserr_fail_sockaddr(int err, const char *mesg, struct sockaddr *addr, socklen_t len));
+NORETURN(void rsock_syserr_fail_raddrinfo(int err, const char *mesg, VALUE rai));
+NORETURN(void rsock_syserr_fail_raddrinfo_or_sockaddr(int err, const char *mesg, VALUE addr, VALUE rai));
+
 NORETURN(void rsock_sys_fail_host_port(const char *, VALUE, VALUE));
 NORETURN(void rsock_sys_fail_path(const char *, VALUE));
 NORETURN(void rsock_sys_fail_sockaddr(const char *, struct sockaddr *addr, socklen_t len));

ext/socket/socket.c

@@ -14,6 +14,12 @@ static VALUE sock_s_unpack_sockaddr_in(VALUE, VALUE);
 
 void
 rsock_sys_fail_host_port(const char *mesg, VALUE host, VALUE port)
+{
+    rsock_syserr_fail_host_port(errno, mesg, host, port);
+}
+
+void
+rsock_syserr_fail_host_port(int err, const char *mesg, VALUE host, VALUE port)
 {
     VALUE message;
 
@@ -22,13 +28,20 @@ rsock_sys_fail_host_port(const char *mesg, VALUE host, VALUE port)
     message = rb_sprintf("%s for \"%s\" port %s",
 	    mesg, StringValueCStr(host), StringValueCStr(port));
 
-    rb_sys_fail_str(message);
+    rb_syserr_fail_str(err, message);
 }
 
 void
 rsock_sys_fail_path(const char *mesg, VALUE path)
+{
+    rsock_syserr_fail_path(errno, mesg, path);
+}
+
+void
+rsock_syserr_fail_path(int err, const char *mesg, VALUE path)
 {
     VALUE message;
+
     if (RB_TYPE_P(path, T_STRING)) {
         if (memchr(RSTRING_PTR(path), '\0', RSTRING_LEN(path))) {
             path = rb_str_inspect(path);
@@ -39,45 +52,64 @@ rsock_sys_fail_path(const char *mesg, VALUE path)
             message = rb_sprintf("%s for \"%s\"", mesg,
                     StringValueCStr(path));
         }
-        rb_sys_fail_str(message);
+	rb_syserr_fail_str(err, message);
     }
     else {
-        rb_sys_fail(mesg);
+	rb_syserr_fail(err, mesg);
     }
 }
 
 void
 rsock_sys_fail_sockaddr(const char *mesg, struct sockaddr *addr, socklen_t len)
+{
+    rsock_syserr_fail_sockaddr(errno, mesg, addr, len);
+}
+
+void
+rsock_syserr_fail_sockaddr(int err, const char *mesg, struct sockaddr *addr, socklen_t len)
 {
     VALUE rai;
 
     rai = rsock_addrinfo_new(addr, len, PF_UNSPEC, 0, 0, Qnil, Qnil);
 
-    rsock_sys_fail_raddrinfo(mesg, rai);
+    rsock_syserr_fail_raddrinfo(err, mesg, rai);
 }
 
 void
 rsock_sys_fail_raddrinfo(const char *mesg, VALUE rai)
+{
+    rsock_syserr_fail_raddrinfo(errno, mesg, rai);
+}
+
+void
+rsock_syserr_fail_raddrinfo(int err, const char *mesg, VALUE rai)
 {
     VALUE str, message;
 
     str = rsock_addrinfo_inspect_sockaddr(rai);
     message = rb_sprintf("%s for %s", mesg, StringValueCStr(str));
 
-    rb_sys_fail_str(message);
+    rb_syserr_fail_str(err, message);
 }
 
 void
 rsock_sys_fail_raddrinfo_or_sockaddr(const char *mesg, VALUE addr, VALUE rai)
+{
+    rsock_syserr_fail_raddrinfo_or_sockaddr(errno, mesg, addr, rai);
+}
+
+void
+rsock_syserr_fail_raddrinfo_or_sockaddr(int err, const char *mesg, VALUE addr, VALUE rai)
 {
     if (NIL_P(rai)) {
         StringValue(addr);
-        rsock_sys_fail_sockaddr(mesg,
+
+	rsock_syserr_fail_sockaddr(err, mesg,
             (struct sockaddr *)RSTRING_PTR(addr),
             (socklen_t)RSTRING_LEN(addr)); /* overflow should be checked already */
     }
     else
-        rsock_sys_fail_raddrinfo(mesg, rai);
+	rsock_syserr_fail_raddrinfo(err, mesg, rai);
 }
 
 static void