(process, sentinel)
register Lisp_Object process, sentinel;
{
+ struct Lisp_Process *p;
+
CHECK_PROCESS (process);
- XPROCESS (process)->sentinel = sentinel;
+ p = XPROCESS (process);
+
+ p->sentinel = sentinel;
+ if (NETCONN1_P (p))
+ p->childp = Fplist_put (p->childp, QCsentinel, sentinel);
return sentinel;
}
/* The name of this option. Should be lowercase version of option
name without SO_ prefix. */
char *name;
- /* Length of name. */
- int nlen;
/* Option level SOL_... */
int optlevel;
/* Option number SO_... */
int optnum;
enum { SOPT_UNKNOWN, SOPT_BOOL, SOPT_INT, SOPT_STR, SOPT_LINGER } opttype;
+ enum { OPIX_NONE=0, OPIX_MISC=1, OPIX_REUSEADDR=2 } optbit;
} socket_options[] =
{
#ifdef SO_BINDTODEVICE
- { "bindtodevice", 12, SOL_SOCKET, SO_BINDTODEVICE, SOPT_STR },
+ { ":bindtodevice", SOL_SOCKET, SO_BINDTODEVICE, SOPT_STR, OPIX_MISC },
#endif
#ifdef SO_BROADCAST
- { "broadcast", 9, SOL_SOCKET, SO_BROADCAST, SOPT_BOOL },
+ { ":broadcast", SOL_SOCKET, SO_BROADCAST, SOPT_BOOL, OPIX_MISC },
#endif
#ifdef SO_DONTROUTE
- { "dontroute", 9, SOL_SOCKET, SO_DONTROUTE, SOPT_BOOL },
+ { ":dontroute", SOL_SOCKET, SO_DONTROUTE, SOPT_BOOL, OPIX_MISC },
#endif
#ifdef SO_KEEPALIVE
- { "keepalive", 9, SOL_SOCKET, SO_KEEPALIVE, SOPT_BOOL },
+ { ":keepalive", SOL_SOCKET, SO_KEEPALIVE, SOPT_BOOL, OPIX_MISC },
#endif
#ifdef SO_LINGER
- { "linger", 6, SOL_SOCKET, SO_LINGER, SOPT_LINGER },
+ { ":linger", SOL_SOCKET, SO_LINGER, SOPT_LINGER, OPIX_MISC },
#endif
#ifdef SO_OOBINLINE
- { "oobinline", 9, SOL_SOCKET, SO_OOBINLINE, SOPT_BOOL },
+ { ":oobinline", SOL_SOCKET, SO_OOBINLINE, SOPT_BOOL, OPIX_MISC },
#endif
#ifdef SO_PRIORITY
- { "priority", 8, SOL_SOCKET, SO_PRIORITY, SOPT_INT },
+ { ":priority", SOL_SOCKET, SO_PRIORITY, SOPT_INT, OPIX_MISC },
#endif
#ifdef SO_REUSEADDR
- { "reuseaddr", 9, SOL_SOCKET, SO_REUSEADDR, SOPT_BOOL },
+ { ":reuseaddr", SOL_SOCKET, SO_REUSEADDR, SOPT_BOOL, OPIX_REUSEADDR },
#endif
- { 0, 0, 0, 0, SOPT_UNKNOWN }
+ { 0, 0, 0, SOPT_UNKNOWN, OPIX_NONE }
};
-/* Process list of socket options OPTS on socket S.
- Only check if options are supported is S < 0.
- If NO_ERROR is non-zero, continue silently if an option
- cannot be set.
+/* Set option OPT to value VAL on socket S.
- Each element specifies one option. An element is either a string
- "OPTION=VALUE" or a cons (OPTION . VALUE) where OPTION is a string
- or a symbol. */
+ Returns (1<<socket_options[OPT].optbit) if option is known, 0 otherwise.
+ Signals an error if setting a known option fails.
+*/
static int
-set_socket_options (s, opts, no_error)
+set_socket_option (s, opt, val)
int s;
- Lisp_Object opts;
- int no_error;
+ Lisp_Object opt, val;
{
- if (!CONSP (opts))
- opts = Fcons (opts, Qnil);
+ char *name;
+ struct socket_options *sopt;
+ int ret = 0;
- while (CONSP (opts))
- {
- Lisp_Object opt;
- Lisp_Object val;
- char *name, *arg;
- struct socket_options *sopt;
- int ret = 0;
-
- opt = XCAR (opts);
- opts = XCDR (opts);
-
- name = 0;
- val = Qt;
- if (CONSP (opt))
- {
- val = XCDR (opt);
- opt = XCAR (opt);
- }
- if (STRINGP (opt))
- name = (char *) SDATA (opt);
- else if (SYMBOLP (opt))
- name = (char *) SDATA (SYMBOL_NAME (opt));
- else {
- error ("Mal-formed option list");
- return 0;
- }
+ CHECK_SYMBOL (opt);
- if (strncmp (name, "no", 2) == 0)
- {
- val = Qnil;
- name += 2;
- }
-
- arg = 0;
- for (sopt = socket_options; sopt->name; sopt++)
- if (strncmp (name, sopt->name, sopt->nlen) == 0)
- {
- if (name[sopt->nlen] == 0)
- break;
- if (name[sopt->nlen] == '=')
- {
- arg = name + sopt->nlen + 1;
- break;
- }
- }
+ name = (char *) SDATA (SYMBOL_NAME (opt));
+ for (sopt = socket_options; sopt->name; sopt++)
+ if (strcmp (name, sopt->name) == 0)
+ break;
- switch (sopt->opttype)
- {
- case SOPT_BOOL:
- {
- int optval;
- if (s < 0)
- return 1;
- if (arg)
- optval = (*arg == '0' || *arg == 'n') ? 0 : 1;
- else if (INTEGERP (val))
- optval = XINT (val) == 0 ? 0 : 1;
- else
- optval = NILP (val) ? 0 : 1;
- ret = setsockopt (s, sopt->optlevel, sopt->optnum,
- &optval, sizeof (optval));
- break;
- }
+ switch (sopt->opttype)
+ {
+ case SOPT_BOOL:
+ {
+ int optval;
+ optval = NILP (val) ? 0 : 1;
+ ret = setsockopt (s, sopt->optlevel, sopt->optnum,
+ &optval, sizeof (optval));
+ break;
+ }
- case SOPT_INT:
- {
- int optval;
- if (arg)
- optval = atoi(arg);
- else if (INTEGERP (val))
- optval = XINT (val);
- else
- error ("Bad option argument for %s", name);
- if (s < 0)
- return 1;
- ret = setsockopt (s, sopt->optlevel, sopt->optnum,
- &optval, sizeof (optval));
- break;
- }
+ case SOPT_INT:
+ {
+ int optval;
+ if (INTEGERP (val))
+ optval = XINT (val);
+ else
+ error ("Bad option value for %s", name);
+ ret = setsockopt (s, sopt->optlevel, sopt->optnum,
+ &optval, sizeof (optval));
+ break;
+ }
- case SOPT_STR:
- {
- if (!arg)
- {
- if (NILP (val))
- arg = "";
- else if (STRINGP (val))
- arg = (char *) SDATA (val);
- else if (XSYMBOL (val))
- arg = (char *) SDATA (SYMBOL_NAME (val));
- else
- error ("Invalid argument to %s option", name);
- }
- ret = setsockopt (s, sopt->optlevel, sopt->optnum,
- arg, strlen (arg));
- }
+ case SOPT_STR:
+ {
+ char *arg;
+
+ if (NILP (val))
+ arg = "";
+ else if (STRINGP (val))
+ arg = (char *) SDATA (val);
+ else if (XSYMBOL (val))
+ arg = (char *) SDATA (SYMBOL_NAME (val));
+ else
+ error ("Bad option value for %s", name);
+ ret = setsockopt (s, sopt->optlevel, sopt->optnum,
+ arg, strlen (arg));
+ }
#ifdef SO_LINGER
- case SOPT_LINGER:
- {
- struct linger linger;
-
- linger.l_onoff = 1;
- linger.l_linger = 0;
-
- if (s < 0)
- return 1;
+ case SOPT_LINGER:
+ {
+ struct linger linger;
- if (arg)
- {
- if (*arg == 'n' || *arg == 't' || *arg == 'y')
- linger.l_onoff = (*arg == 'n') ? 0 : 1;
- else
- linger.l_linger = atoi(arg);
- }
- else if (INTEGERP (val))
- linger.l_linger = XINT (val);
- else
- linger.l_onoff = NILP (val) ? 0 : 1;
- ret = setsockopt (s, sopt->optlevel, sopt->optnum,
- &linger, sizeof (linger));
- break;
- }
+ linger.l_onoff = 1;
+ linger.l_linger = 0;
+ if (INTEGERP (val))
+ linger.l_linger = XINT (val);
+ else
+ linger.l_onoff = NILP (val) ? 0 : 1;
+ ret = setsockopt (s, sopt->optlevel, sopt->optnum,
+ &linger, sizeof (linger));
+ break;
+ }
#endif
- default:
- if (s < 0)
- return 0;
- if (no_error)
- continue;
- error ("Unsupported option: %s", name);
- }
- if (ret < 0 && ! no_error)
- report_file_error ("Cannot set network option: %s", opt);
+
+ default:
+ return 0;
}
- return 1;
+
+ if (ret < 0)
+ report_file_error ("Cannot set network option",
+ Fcons (opt, Fcons (val, Qnil)));
+ return (1 << sopt->optbit);
}
-DEFUN ("set-network-process-options",
- Fset_network_process_options, Sset_network_process_options,
- 1, MANY, 0,
- doc: /* Set one or more options for network process PROCESS.
-Each option is either a string "OPT=VALUE" or a cons (OPT . VALUE).
-A boolean value is false if it either zero or nil, true otherwise.
-
-The following options are known. Consult the relevant system manual
-pages for more information.
-
-bindtodevice=NAME -- bind to interface NAME, or remove binding if nil.
-broadcast=BOOL -- Allow send and receive of datagram broadcasts.
-dontroute=BOOL -- Only send to directly connected hosts.
-keepalive=BOOL -- Send keep-alive messages on network stream.
-linger=BOOL or TIMEOUT -- Send queued messages before closing.
-oobinline=BOOL -- Place out-of-band data in receive data stream.
-priority=INT -- Set protocol defined priority for sent packets.
-reuseaddr=BOOL -- Allow reusing a recently used address.
-
-usage: (set-network-process-options PROCESS &rest OPTIONS) */)
- (nargs, args)
- int nargs;
- Lisp_Object *args;
+
+DEFUN ("set-network-process-option",
+ Fset_network_process_option, Sset_network_process_option,
+ 3, 4, 0,
+ doc: /* For network process PROCESS set option OPTION to value VALUE.
+See `make-network-process' for a list of options and values.
+If optional fourth arg NO-ERROR is non-nil, don't signal an error if
+OPTION is not a supported option, return nil instead; otherwise return t. */)
+ (process, option, value, no_error)
+ Lisp_Object process, option, value;
+ Lisp_Object no_error;
{
- Lisp_Object process;
- Lisp_Object opts;
+ int s, i;
- process = args[0];
CHECK_PROCESS (process);
- if (nargs > 1 && XINT (XPROCESS (process)->infd) >= 0)
- {
- opts = Flist (nargs, args);
- set_socket_options (XINT (XPROCESS (process)->infd), opts, 0);
- }
- return process;
+
+ s = XINT (XPROCESS (process)->infd);
+ if (s < 0)
+ error ("Process is not running");
+
+ if (set_socket_option (s, option, value))
+ return Qt;
+
+ if (NILP (no_error))
+ error ("Unknown or unsupported option");
+
+ return Qnil;
}
+
\f
/* A version of request_sigio suitable for a record_unwind_protect. */
this format in portable code, as it may depend on implementation
defined constants, data sizes, and data structure alignment.
-:coding CODING -- CODING is coding system for this process.
-
-:options OPTIONS -- Set the specified options for the network process.
-See `set-network-process-options' for details.
+:coding CODING -- If CODING is a symbol, it specifies the coding
+system used for both reading and writing for this process. If CODING
+is a cons (DECODING . ENCODING), DECODING is used for reading, and
+ENCODING is used for writing.
:nowait BOOL -- If BOOL is non-nil for a stream type client process,
return without waiting for the connection to complete; instead, the
:plist PLIST -- Install PLIST as the new process' initial plist.
-:server BOOL -- if BOOL is non-nil, create a server process for the
+:server QLEN -- if QLEN is non-nil, create a server process for the
specified FAMILY, SERVICE, and connection type (stream or datagram).
-Default is a client process.
+If QLEN is an integer, it is used as the max. length of the server's
+pending connection queue (also known as the backlog); the default
+queue length is 5. Default is to create a client process.
+
+The following network options can be specified for this connection:
+
+:bindtodevice NAME -- bind to interface NAME.
+:broadcast BOOL -- Allow send and receive of datagram broadcasts.
+:dontroute BOOL -- Only send to directly connected hosts.
+:keepalive BOOL -- Send keep-alive messages on network stream.
+:linger BOOL or TIMEOUT -- Send queued messages before closing.
+:oobinline BOOL -- Place out-of-band data in receive data stream.
+:priority INT -- Set protocol defined priority for sent packets.
+:reuseaddr BOOL -- Allow reusing a recently used local address
+ (this is allowed by default for a server process).
+
+Consult the relevant system programmer's manual pages for more
+information on using these options.
+
+
+A server process will listen for and accept connections from clients.
+When a client connection is accepted, a new network process is created
+for the connection with the following parameters:
-A server process will listen for and accept connections from
-clients. When a client connection is accepted, a new network process
-is created for the connection with the following parameters:
- The client's process name is constructed by concatenating the server
process' NAME and a client identification string.
- If the FILTER argument is non-nil, the client process will not get a
Lisp_Object name, buffer, host, service, address;
Lisp_Object filter, sentinel;
int is_non_blocking_client = 0;
- int is_server = 0;
+ int is_server = 0, backlog = 5;
int socktype;
int family = -1;
error ("Network servers not supported");
#else
is_server = 1;
+ if (INTEGERP (tem))
+ backlog = XINT (tem);
#endif
}
for (lres = res; lres; lres = lres->ai_next)
{
+ int optn, optbits;
+
s = socket (lres->ai_family, lres->ai_socktype, lres->ai_protocol);
if (s < 0)
{
/* Make us close S if quit. */
record_unwind_protect (close_file_unwind, make_number (s));
+ /* Parse network options in the arg list.
+ We simply ignore anything which isn't a known option (including other keywords).
+ An error is signalled if setting a known option fails. */
+ for (optn = optbits = 0; optn < nargs-1; optn += 2)
+ optbits |= set_socket_option (s, args[optn], args[optn+1]);
+
if (is_server)
{
/* Configure as a server socket. */
+
+ /* SO_REUSEADDR = 1 is default for server sockets; must specify
+ explicit :reuseaddr key to override this. */
#ifdef HAVE_LOCAL_SOCKETS
if (family != AF_LOCAL)
#endif
- {
- int optval = 1;
- if (setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof optval))
- report_file_error ("Cannot set reuse option on server socket.", Qnil);
- }
+ if (!(optbits & (1 << OPIX_REUSEADDR)))
+ {
+ int optval = 1;
+ if (setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof optval))
+ report_file_error ("Cannot set reuse option on server socket.", Qnil);
+ }
if (bind (s, lres->ai_addr, lres->ai_addrlen))
report_file_error ("Cannot bind server socket", Qnil);
}
#endif
- if (socktype == SOCK_STREAM && listen (s, 5))
+ if (socktype == SOCK_STREAM && listen (s, backlog))
report_file_error ("Cannot listen on server socket", Qnil);
break;
report_file_error ("make client process failed", contact);
}
- tem = Fplist_get (contact, QCoptions);
- if (!NILP (tem))
- set_socket_options (s, tem, 1);
-
#endif /* not TERM */
inch = s;
Lisp_Object args[5], val;
if (!NILP (tem))
- val = XCAR (XCDR (tem));
+ {
+ val = XCAR (XCDR (tem));
+ if (CONSP (val))
+ val = XCAR (val);
+ }
else if (!NILP (Vcoding_system_for_read))
val = Vcoding_system_for_read;
else if ((!NILP (buffer) && NILP (XBUFFER (buffer)->enable_multibyte_characters))
p->decode_coding_system = val;
if (!NILP (tem))
- val = XCAR (XCDR (tem));
+ {
+ val = XCAR (XCDR (tem));
+ if (CONSP (val))
+ val = XCDR (val);
+ }
else if (!NILP (Vcoding_system_for_write))
val = Vcoding_system_for_write;
else if (NILP (current_buffer->enable_multibyte_characters))
{ 0, 0 }
};
-DEFUN ("get-network-interface-info", Fget_network_interface_info, Sget_network_interface_info, 1, 1, 0,
+DEFUN ("network-interface-info", Fnetwork_interface_info, Snetwork_interface_info, 1, 1, 0,
doc: /* Return information about network interface named IFNAME.
The return value is a list (ADDR BCAST NETMASK HWADDR FLAGS),
where ADDR is the layer 3 address, BCAST is the layer 3 broadcast address,
#ifdef HAVE_SOCKETS
{
Lisp_Object subfeatures = Qnil;
+ struct socket_options *sopt;
+
#define ADD_SUBFEATURE(key, val) \
subfeatures = Fcons (Fcons (key, Fcons (val, Qnil)), subfeatures)
#if !defined(TERM) && (defined(O_NONBLOCK) || defined(O_NDELAY))
ADD_SUBFEATURE (QCserver, Qt);
#endif
-#ifdef SO_BINDTODEVICE
- ADD_SUBFEATURE (QCoptions, intern ("bindtodevice"));
-#endif
-#ifdef SO_BROADCAST
- ADD_SUBFEATURE (QCoptions, intern ("broadcast"));
-#endif
-#ifdef SO_DONTROUTE
- ADD_SUBFEATURE (QCoptions, intern ("dontroute"));
-#endif
-#ifdef SO_KEEPALIVE
- ADD_SUBFEATURE (QCoptions, intern ("keepalive"));
-#endif
-#ifdef SO_LINGER
- ADD_SUBFEATURE (QCoptions, intern ("linger"));
-#endif
-#ifdef SO_OOBINLINE
- ADD_SUBFEATURE (QCoptions, intern ("oobinline"));
-#endif
-#ifdef SO_PRIORITY
- ADD_SUBFEATURE (QCoptions, intern ("priority"));
-#endif
-#ifdef SO_REUSEADDR
- ADD_SUBFEATURE (QCoptions, intern ("reuseaddr"));
-#endif
+
+ for (sopt = socket_options; sopt->name; sopt++)
+ subfeatures = Fcons (intern (sopt->name), subfeatures);
+
Fprovide (intern ("make-network-process"), subfeatures);
}
#endif /* HAVE_SOCKETS */
defsubr (&Sprocess_list);
defsubr (&Sstart_process);
#ifdef HAVE_SOCKETS
- defsubr (&Sset_network_process_options);
+ defsubr (&Sset_network_process_option);
defsubr (&Smake_network_process);
defsubr (&Sformat_network_address);
#ifdef SIOCGIFCONF
defsubr (&Snetwork_interface_list);
#endif
#if defined(SIOCGIFADDR) || defined(SIOCGIFHWADDR) || defined(SIOCGIFFLAGS)
- defsubr (&Sget_network_interface_info);
+ defsubr (&Snetwork_interface_info);
#endif
#endif /* HAVE_SOCKETS */
#ifdef DATAGRAM_SOCKETS
projects / emacs.git / commitdiff