Merge remote-tracking branch 'stefanha/trivial-patches' into staging

# By liguang (2) and others
# Via Stefan Hajnoczi
* stefanha/trivial-patches:
  qdev: remove redundant abort()
  gitignore: ignore more files
  Use proper term in TCG README
  serial: Fix debug format strings
  Fix typos and misspellings
  Advertise --libdir in configure --help output
  memory: fix a bug of detection of memory region collision
  MinGW: Replace setsockopt by qemu_setsocketopt

25 files changed, 58 insertions, 52 deletions

diff --git a/.gitignore b/.gitignore
index 27ad002..9c234a3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -80,6 +80,9 @@ fsdev/virtfs-proxy-helper.pod
 *.swp
 *.orig
 .pc
+*.patch
+*.gcda
+*.gcno
 patches
 pc-bios/bios-pq/status
 pc-bios/vgabios-pq/status
diff --git a/bt-host.c b/bt-host.c
index 2092754..2da3c32 100644
--- a/bt-host.c
+++ b/bt-host.c
@@ -171,7 +171,7 @@ struct HCIInfo *bt_host_hci(const char *id)
     hci_filter_all_ptypes(&flt);
     hci_filter_all_events(&flt);
 
-    if (setsockopt(fd, SOL_HCI, HCI_FILTER, &flt, sizeof(flt)) < 0) {
+    if (qemu_setsockopt(fd, SOL_HCI, HCI_FILTER, &flt, sizeof(flt)) < 0) {
         fprintf(stderr, "qemu: Can't set HCI filter on socket (%i)\n", errno);
         return 0;
     }
diff --git a/configure b/configure
index 46a7594..497ce29 100755
--- a/configure
+++ b/configure
@@ -1050,6 +1050,7 @@ echo "  --mandir=PATH            install man pages in PATH"
 echo "  --datadir=PATH           install firmware in PATH$confsuffix"
 echo "  --docdir=PATH            install documentation in PATH$confsuffix"
 echo "  --bindir=PATH            install binaries in PATH"
+echo "  --libdir=PATH            install libraries in PATH"
 echo "  --sysconfdir=PATH        install config in PATH$confsuffix"
 echo "  --localstatedir=PATH     install local state in PATH"
 echo "  --with-confsuffix=SUFFIX suffix for QEMU data inside datadir and sysconfdir [$confsuffix]"
diff --git a/docs/usb-storage.txt b/docs/usb-storage.txt
index fa93111..c5a3866 100644
--- a/docs/usb-storage.txt
+++ b/docs/usb-storage.txt
@@ -5,7 +5,7 @@ qemu usb storage emulation
 QEMU has three devices for usb storage emulation.
 
 Number one emulates the classic bulk-only transport protocol which is
-used by 99% of the usb sticks on the marked today and is called
+used by 99% of the usb sticks on the market today and is called
 "usb-storage".  Usage (hooking up to xhci, other host controllers work
 too):
 
@@ -36,7 +36,7 @@ It's called "usb-bot".  It shares most code with "usb-storage", and
 the guest will not be able to see the difference.  The qemu command
 line interface is simliar to usb-uas though, i.e. no automatic scsi
 disk creation.  It also features support for up to 16 LUNs.  The LUN
-numbers must be continous, i.e. for three devices you must use 0+1+2.
+numbers must be continuous, i.e. for three devices you must use 0+1+2.
 The 0+1+5 numbering from the "usb-uas" example isn't going to work
 with "usb-bot".
 
diff --git a/gdbstub.c b/gdbstub.c
index 43b7d4d..decb505 100644
--- a/gdbstub.c
+++ b/gdbstub.c
@@ -2887,7 +2887,7 @@ static int gdbserver_open(int port)
 
     /* allow fast reuse */
     val = 1;
-    setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *)&val, sizeof(val));
+    qemu_setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val));
 
     sockaddr.sin_family = AF_INET;
     sockaddr.sin_port = htons(port);
diff --git a/hw/arm-misc.h b/hw/arm-misc.h
index cba7553..7b2b02d 100644
--- a/hw/arm-misc.h
+++ b/hw/arm-misc.h
@@ -14,7 +14,7 @@
 #include "exec/memory.h"
 #include "hw/irq.h"
 
-/* The CPU is also modeled as an interrupt controller.  */
+/* The CPU is also modelled as an interrupt controller.  */
 #define ARM_PIC_CPU_IRQ 0
 #define ARM_PIC_CPU_FIQ 1
 qemu_irq *arm_pic_init_cpu(ARMCPU *cpu);
diff --git a/hw/pci/pci_host.c b/hw/pci/pci_host.c
index daca1c1..12254b1 100644
--- a/hw/pci/pci_host.c
+++ b/hw/pci/pci_host.c
@@ -38,7 +38,7 @@ do { printf("pci_host_data: " fmt , ## __VA_ARGS__); } while (0)
  * bit  0 -  7: offset in configuration space of a given pci device
  */
 
-/* the helper functio to get a PCIDeice* for a given pci address */
+/* the helper function to get a PCIDevice* for a given pci address */
 static inline PCIDevice *pci_dev_find_by_addr(PCIBus *bus, uint32_t addr)
 {
     uint8_t bus_num = addr >> 16;
diff --git a/hw/qdev.c b/hw/qdev.c
index 0b20280..708a058 100644
--- a/hw/qdev.c
+++ b/hw/qdev.c
@@ -117,11 +117,10 @@ DeviceState *qdev_create(BusState *bus, const char *name)
         if (bus) {
             error_report("Unknown device '%s' for bus '%s'", name,
                          object_get_typename(OBJECT(bus)));
-            abort();
         } else {
             error_report("Unknown device '%s' for default sysbus", name);
-            abort();
         }
+        abort();
     }
 
     return dev;
diff --git a/hw/sdhci.c b/hw/sdhci.c
index 93feada..4a29e6c 100644
--- a/hw/sdhci.c
+++ b/hw/sdhci.c
@@ -763,7 +763,7 @@ static void sdhci_do_adma(SDHCIState *s)
         }
     }
 
-    /* we have unfinished bussiness - reschedule to continue ADMA */
+    /* we have unfinished business - reschedule to continue ADMA */
     qemu_mod_timer(s->transfer_timer,
                    qemu_get_clock_ns(vm_clock) + SDHC_TRANSFER_DELAY);
 }
diff --git a/hw/serial.c b/hw/serial.c
index 48a5eb6..0ccc499 100644
--- a/hw/serial.c
+++ b/hw/serial.c
@@ -306,7 +306,7 @@ static void serial_ioport_write(void *opaque, hwaddr addr, uint64_t val,
     SerialState *s = opaque;
 
     addr &= 7;
-    DPRINTF("write addr=0x%02x val=0x%02x\n", addr, val);
+    DPRINTF("write addr=0x%" HWADDR_PRIx " val=0x%" PRIx64 "\n", addr, val);
     switch(addr) {
     default:
     case 0:
@@ -527,7 +527,7 @@ static uint64_t serial_ioport_read(void *opaque, hwaddr addr, unsigned size)
         ret = s->scr;
         break;
     }
-    DPRINTF("read addr=0x%02x val=0x%02x\n", addr, ret);
+    DPRINTF("read addr=0x%" HWADDR_PRIx " val=0x%02x\n", addr, ret);
     return ret;
 }
 
diff --git a/include/qom/object.h b/include/qom/object.h
index cf094e7..d0f99c5 100644
--- a/include/qom/object.h
+++ b/include/qom/object.h
@@ -202,7 +202,7 @@ typedef struct InterfaceInfo InterfaceInfo;
  * Methods are always <emphasis>virtual</emphasis>. Overriding a method in
  * #TypeInfo.class_init of a subclass leads to any user of the class obtained
  * via OBJECT_GET_CLASS() accessing the overridden function.
- * The original function is not automatically invoked. It is the responsability
+ * The original function is not automatically invoked. It is the responsibility
  * of the overriding class to determine whether and when to invoke the method
  * being overridden.
  *
diff --git a/memory.c b/memory.c
index 92a2196..75ca281 100644
--- a/memory.c
+++ b/memory.c
@@ -1321,7 +1321,7 @@ static void memory_region_add_subregion_common(MemoryRegion *mr,
         if (subregion->may_overlap || other->may_overlap) {
             continue;
         }
-        if (int128_gt(int128_make64(offset),
+        if (int128_ge(int128_make64(offset),
                       int128_add(int128_make64(other->addr), other->size))
             || int128_le(int128_add(int128_make64(offset), subregion->size),
                          int128_make64(other->addr))) {
diff --git a/monitor.c b/monitor.c
index 680d344..cfb5d64 100644
--- a/monitor.c
+++ b/monitor.c
@@ -3560,10 +3560,10 @@ static const mon_cmd_t *qmp_find_cmd(const char *cmdname)
  * If @cmdline is blank, return NULL.
  * If it can't be parsed, report to @mon, and return NULL.
  * Else, insert command arguments into @qdict, and return the command.
- * If sub-command table exist, and if @cmdline contains addtional string for
- * sub-command, this function will try search sub-command table. if no
- * addtional string for sub-command exist, this function will return the found
- * one in @table.
+ * If a sub-command table exists, and if @cmdline contains an additional string
+ * for a sub-command, this function will try to search the sub-command table.
+ * If no additional string for a sub-command is present, this function will
+ * return the command found in @table.
  * Do not assume the returned command points into @table!  It doesn't
  * when the command is a sub-command.
  */
diff --git a/net/socket.c b/net/socket.c
index 396dc8c..d8b35a2 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -262,8 +262,7 @@ static int net_socket_mcast_create(struct sockaddr_in *mcastaddr, struct in_addr
     }
 
     val = 1;
-    ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
-                   (const char *)&val, sizeof(val));
+    ret = qemu_setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val));
     if (ret < 0) {
         perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
         goto fail;
@@ -283,8 +282,8 @@ static int net_socket_mcast_create(struct sockaddr_in *mcastaddr, struct in_addr
         imr.imr_interface.s_addr = htonl(INADDR_ANY);
     }
 
-    ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
-                     (const char *)&imr, sizeof(struct ip_mreq));
+    ret = qemu_setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
+                          &imr, sizeof(struct ip_mreq));
     if (ret < 0) {
         perror("setsockopt(IP_ADD_MEMBERSHIP)");
         goto fail;
@@ -292,8 +291,8 @@ static int net_socket_mcast_create(struct sockaddr_in *mcastaddr, struct in_addr
 
     /* Force mcast msgs to loopback (eg. several QEMUs in same host */
     loop = 1;
-    ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP,
-                   (const char *)&loop, sizeof(loop));
+    ret = qemu_setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP,
+                          &loop, sizeof(loop));
     if (ret < 0) {
         perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
         goto fail;
@@ -301,8 +300,8 @@ static int net_socket_mcast_create(struct sockaddr_in *mcastaddr, struct in_addr
 
     /* If a bind address is given, only send packets from that address */
     if (localaddr != NULL) {
-        ret = setsockopt(fd, IPPROTO_IP, IP_MULTICAST_IF,
-                         (const char *)localaddr, sizeof(*localaddr));
+        ret = qemu_setsockopt(fd, IPPROTO_IP, IP_MULTICAST_IF,
+                              localaddr, sizeof(*localaddr));
         if (ret < 0) {
             perror("setsockopt(IP_MULTICAST_IF)");
             goto fail;
@@ -521,7 +520,7 @@ static int net_socket_listen_init(NetClientState *peer,
 
     /* allow fast reuse */
     val = 1;
-    setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val));
+    qemu_setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val));
 
     ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
     if (ret < 0) {
@@ -659,8 +658,8 @@ static int net_socket_udp_init(NetClientState *peer,
         return -1;
     }
     val = 1;
-    ret = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
-                   (const char *)&val, sizeof(val));
+    ret = qemu_setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
+                          &val, sizeof(val));
     if (ret < 0) {
         perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
         closesocket(fd);
diff --git a/net/tap.c b/net/tap.c
index daab350..ce79699 100644
--- a/net/tap.c
+++ b/net/tap.c
@@ -696,7 +696,7 @@ int net_init_tap(const NetClientOptions *opts, const char *name,
     /* QEMU vlans does not support multiqueue tap, in this case peer is set.
      * For -netdev, peer is always NULL. */
     if (peer && (tap->has_queues || tap->has_fds || tap->has_vhostfds)) {
-        error_report("Multiqueue tap cannnot be used with QEMU vlans");
+        error_report("Multiqueue tap cannot be used with QEMU vlans");
         return -1;
     }
 
diff --git a/qemu-options.hx b/qemu-options.hx
index 06dd565..d7afeab 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -1123,7 +1123,7 @@ is a TCP port number, not a display number.
 @item websocket
 
 Opens an additional TCP listening port dedicated to VNC Websocket connections.
-By defintion the Websocket port is 5700+@var{display}. If @var{host} is
+By definition the Websocket port is 5700+@var{display}. If @var{host} is
 specified connections will only be allowed from this host.
 As an alternative the Websocket port could be specified by using
 @code{websocket}=@var{port}.
diff --git a/qga/commands-posix.c b/qga/commands-posix.c
index d7da850..3b5c536 100644
--- a/qga/commands-posix.c
+++ b/qga/commands-posix.c
@@ -120,7 +120,7 @@ void qmp_guest_shutdown(bool has_mode, const char *mode, Error **err)
         return;
     }
 
-    /* succeded */
+    /* succeeded */
 }
 
 int64_t qmp_guest_get_time(Error **errp)
diff --git a/slirp/misc.c b/slirp/misc.c
index d4df972..6b9c2c4 100644
--- a/slirp/misc.c
+++ b/slirp/misc.c
@@ -212,9 +212,9 @@ fork_exec(struct socket *so, const char *ex, int do_pty)
                 } while (so->s < 0 && errno == EINTR);
                 closesocket(s);
                 opt = 1;
-                setsockopt(so->s, SOL_SOCKET, SO_REUSEADDR, (char *)&opt, sizeof(int));
+                qemu_setsockopt(so->s, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(int));
                 opt = 1;
-                setsockopt(so->s, SOL_SOCKET, SO_OOBINLINE, (char *)&opt, sizeof(int));
+                qemu_setsockopt(so->s, SOL_SOCKET, SO_OOBINLINE, &opt, sizeof(int));
 		socket_set_nonblock(so->s);
 
 		/* Append the telnet options now */
diff --git a/slirp/socket.c b/slirp/socket.c
index bb639ae..8e8819c 100644
--- a/slirp/socket.c
+++ b/slirp/socket.c
@@ -627,7 +627,7 @@ tcp_listen(Slirp *slirp, uint32_t haddr, u_int hport, uint32_t laddr,
 	addr.sin_port = hport;
 
 	if (((s = qemu_socket(AF_INET,SOCK_STREAM,0)) < 0) ||
-	    (setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&opt,sizeof(int)) < 0) ||
+	    (qemu_setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(int)) < 0) ||
 	    (bind(s,(struct sockaddr *)&addr, sizeof(addr)) < 0) ||
 	    (listen(s,1) < 0)) {
 		int tmperrno = errno; /* Don't clobber the real reason we failed */
@@ -642,7 +642,7 @@ tcp_listen(Slirp *slirp, uint32_t haddr, u_int hport, uint32_t laddr,
 #endif
 		return NULL;
 	}
-	setsockopt(s,SOL_SOCKET,SO_OOBINLINE,(char *)&opt,sizeof(int));
+	qemu_setsockopt(s, SOL_SOCKET, SO_OOBINLINE, &opt, sizeof(int));
 
 	getsockname(s,(struct sockaddr *)&addr,&addrlen);
 	so->so_fport = addr.sin_port;
diff --git a/slirp/tcp_subr.c b/slirp/tcp_subr.c
index 7b7ad60..84a6bb5 100644
--- a/slirp/tcp_subr.c
+++ b/slirp/tcp_subr.c
@@ -338,9 +338,9 @@ int tcp_fconnect(struct socket *so)
 
     socket_set_nonblock(s);
     opt = 1;
-    setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&opt,sizeof(opt ));
+    qemu_setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt));
     opt = 1;
-    setsockopt(s,SOL_SOCKET,SO_OOBINLINE,(char *)&opt,sizeof(opt ));
+    qemu_setsockopt(s, SOL_SOCKET, SO_OOBINLINE, &opt, sizeof(opt));
 
     addr.sin_family = AF_INET;
     if ((so->so_faddr.s_addr & slirp->vnetwork_mask.s_addr) ==
@@ -427,9 +427,9 @@ void tcp_connect(struct socket *inso)
     }
     socket_set_nonblock(s);
     opt = 1;
-    setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (char *)&opt, sizeof(int));
+    qemu_setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(int));
     opt = 1;
-    setsockopt(s, SOL_SOCKET, SO_OOBINLINE, (char *)&opt, sizeof(int));
+    qemu_setsockopt(s, SOL_SOCKET, SO_OOBINLINE, &opt, sizeof(int));
     socket_set_nodelay(s);
 
     so->so_fport = addr.sin_port;
diff --git a/slirp/udp.c b/slirp/udp.c
index 9286cb7..b105f87 100644
--- a/slirp/udp.c
+++ b/slirp/udp.c
@@ -372,7 +372,7 @@ udp_listen(Slirp *slirp, uint32_t haddr, u_int hport, uint32_t laddr,
 		udp_detach(so);
 		return NULL;
 	}
-	setsockopt(so->s,SOL_SOCKET,SO_REUSEADDR,(char *)&opt,sizeof(int));
+	qemu_setsockopt(so->s, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(int));
 
 	getsockname(so->s,(struct sockaddr *)&addr,&addrlen);
 	so->so_fport = addr.sin_port;
diff --git a/target-i386/translate.c b/target-i386/translate.c
index 705147a..c9cc2ff 100644
--- a/target-i386/translate.c
+++ b/target-i386/translate.c
@@ -4746,7 +4746,7 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s,
             }
             s->pc++;
 
-            /* 4.1.1-4.1.3: No preceeding lock, 66, f2, f3, or rex prefixes. */
+            /* 4.1.1-4.1.3: No preceding lock, 66, f2, f3, or rex prefixes. */
             if (prefixes & (PREFIX_REPZ | PREFIX_REPNZ
                             | PREFIX_LOCK | PREFIX_DATA)) {
                 goto illegal_op;
diff --git a/target-s390x/translate.c b/target-s390x/translate.c
index 88e481c..a4f2194 100644
--- a/target-s390x/translate.c
+++ b/target-s390x/translate.c
@@ -1142,7 +1142,7 @@ struct DisasInsn {
 };
 
 /* ====================================================================== */
-/* Miscelaneous helpers, used by several operations.  */
+/* Miscellaneous helpers, used by several operations.  */
 
 static void help_l2_shift(DisasContext *s, DisasFields *f,
                           DisasOps *o, int mask)
diff --git a/tcg/README b/tcg/README
index 934e7af..063aeb9 100644
--- a/tcg/README
+++ b/tcg/README
@@ -14,6 +14,10 @@ the emulated architecture. As TCG started as a generic C backend used
 for cross compiling, it is assumed that the TCG target is different
 from the host, although it is never the case for QEMU.
 
+In this document, we use "guest" to specify what architecture we are
+emulating; "target" always means the TCG target, the machine on which
+we are running QEMU.
+
 A TCG "function" corresponds to a QEMU Translated Block (TB).
 
 A TCG "temporary" is a variable only live in a basic
@@ -379,7 +383,7 @@ double-word product T0.  The later is returned in two single-word outputs.
 
 Similar to mulu2, except the two inputs T1 and T2 are signed.
 
-********* 64-bit target on 32-bit host support
+********* 64-bit guest on 32-bit host support
 
 The following opcodes are internal to TCG.  Thus they are to be implemented by
 32-bit host code generators, but are not to be emitted by guest translators.
@@ -521,9 +525,9 @@ register.
   a better generated code, but it reduces the memory usage of TCG and
   the speed of the translation.
 
-- Don't hesitate to use helpers for complicated or seldom used target
+- Don't hesitate to use helpers for complicated or seldom used guest
   instructions. There is little performance advantage in using TCG to
-  implement target instructions taking more than about twenty TCG
+  implement guest instructions taking more than about twenty TCG
   instructions. Note that this rule of thumb is more applicable to
   helpers doing complex logic or arithmetic, where the C compiler has
   scope to do a good job of optimisation; it is less relevant where
@@ -531,9 +535,9 @@ register.
   inline TCG may still be faster for longer sequences.
 
 - The hard limit on the number of TCG instructions you can generate
-  per target instruction is set by MAX_OP_PER_INSTR in exec-all.h --
+  per guest instruction is set by MAX_OP_PER_INSTR in exec-all.h --
   you cannot exceed this without risking a buffer overrun.
 
 - Use the 'discard' instruction if you know that TCG won't be able to
   prove that a given global is "dead" at a given program point. The
-  x86 target uses it to improve the condition codes optimisation.
+  x86 guest uses it to improve the condition codes optimisation.
diff --git a/util/qemu-sockets.c b/util/qemu-sockets.c
index 83e4e08..d70bbf0 100644
--- a/util/qemu-sockets.c
+++ b/util/qemu-sockets.c
@@ -156,12 +156,12 @@ int inet_listen_opts(QemuOpts *opts, int port_offset, Error **errp)
             continue;
         }
 
-        setsockopt(slisten,SOL_SOCKET,SO_REUSEADDR,(void*)&on,sizeof(on));
+        qemu_setsockopt(slisten, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
 #ifdef IPV6_V6ONLY
         if (e->ai_family == PF_INET6) {
             /* listen on both ipv4 and ipv6 */
-            setsockopt(slisten,IPPROTO_IPV6,IPV6_V6ONLY,(void*)&off,
-                sizeof(off));
+            qemu_setsockopt(slisten, IPPROTO_IPV6, IPV6_V6ONLY, &off,
+                            sizeof(off));
         }
 #endif
 
@@ -229,7 +229,7 @@ static void wait_for_connect(void *opaque)
     qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
 
     do {
-        rc = getsockopt(s->fd, SOL_SOCKET, SO_ERROR, (void *) &val, &valsize);
+        rc = qemu_getsockopt(s->fd, SOL_SOCKET, SO_ERROR, &val, &valsize);
     } while (rc == -1 && socket_error() == EINTR);
 
     /* update rc to contain error */
@@ -456,7 +456,7 @@ int inet_dgram_opts(QemuOpts *opts, Error **errp)
         error_set_errno(errp, errno, QERR_SOCKET_CREATE_FAILED);
         goto err;
     }
-    setsockopt(sock,SOL_SOCKET,SO_REUSEADDR,(void*)&on,sizeof(on));
+    qemu_setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
 
     /* bind socket */
     if (bind(sock, local->ai_addr, local->ai_addrlen) < 0) {