X-Git-Url: https://git.hcoop.net/bpt/emacs.git/blobdiff_plain/156bffbe26748a0e60ec7125da4b960a0b6b455f..06793fea52fe5fddd86708121b77ff6d81d4fe02:/src/process.c
diff --git a/src/process.c b/src/process.c
index 2125478907..f6f1ad0a6f 100644
--- a/src/process.c
+++ b/src/process.c
@@ -1,6 +1,6 @@
/* Asynchronous subprocess control for GNU Emacs.
-Copyright (C) 1985-1988, 1993-1996, 1998-1999, 2001-2011
+Copyright (C) 1985-1988, 1993-1996, 1998-1999, 2001-2012
Free Software Foundation, Inc.
This file is part of GNU Emacs.
@@ -54,16 +54,16 @@ along with GNU Emacs. If not, see . */
#endif
#include
-#if defined(HAVE_NET_IF_H)
+#if defined (HAVE_NET_IF_H)
#include
#endif /* HAVE_NET_IF_H */
-#if defined(HAVE_IFADDRS_H)
+#if defined (HAVE_IFADDRS_H)
/* Must be after net/if.h */
#include
/* We only use structs from this header when we use getifaddrs. */
-#if defined(HAVE_NET_IF_DL_H)
+#if defined (HAVE_NET_IF_DL_H)
#include
#endif
@@ -256,7 +256,7 @@ static void create_pty (Lisp_Object);
/* If we support a window system, turn on the code to poll periodically
to detect C-g. It isn't actually used when doing interrupt input. */
-#if defined(HAVE_WINDOW_SYSTEM) && !defined(USE_ASYNC_EVENTS)
+#if defined (HAVE_WINDOW_SYSTEM) && !defined (USE_ASYNC_EVENTS)
#define POLL_FOR_INPUT
#endif
@@ -616,8 +616,8 @@ make_process (Lisp_Object name)
{
register Lisp_Object val, tem, name1;
register struct Lisp_Process *p;
- char suffix[10];
- register int i;
+ char suffix[sizeof "<>" + INT_STRLEN_BOUND (printmax_t)];
+ printmax_t i;
p = allocate_process ();
@@ -640,8 +640,14 @@ make_process (Lisp_Object name)
#ifdef HAVE_GNUTLS
p->gnutls_initstage = GNUTLS_STAGE_EMPTY;
+ /* Default log level. */
p->gnutls_log_level = 0;
+ /* GnuTLS handshakes attempted for this connection. */
+ p->gnutls_handshakes_tried = 0;
p->gnutls_p = 0;
+ p->gnutls_state = NULL;
+ p->gnutls_x509_cred = NULL;
+ p->gnutls_anon_cred = NULL;
#endif
/* If name is already in use, modify it until it is unused. */
@@ -651,7 +657,7 @@ make_process (Lisp_Object name)
{
tem = Fget_process (name1);
if (NILP (tem)) break;
- sprintf (suffix, "<%d>", i);
+ sprintf (suffix, "<%"pMd">", i);
name1 = concat2 (name, build_string (suffix));
}
name = name1;
@@ -1064,7 +1070,9 @@ is more appropriate for saving the process buffer.
Binding the variable `inherit-process-coding-system' to non-nil before
starting the process is an alternative way of setting the inherit flag
-for the process which will run. */)
+for the process which will run.
+
+This function returns FLAG. */)
(register Lisp_Object process, Lisp_Object flag)
{
CHECK_PROCESS (process);
@@ -1077,7 +1085,8 @@ DEFUN ("set-process-query-on-exit-flag",
2, 2, 0,
doc: /* Specify if query is needed for PROCESS when Emacs is exited.
If the second argument FLAG is non-nil, Emacs will query the user before
-exiting or killing a buffer if PROCESS is running. */)
+exiting or killing a buffer if PROCESS is running. This function
+returns FLAG. */)
(register Lisp_Object process, Lisp_Object flag)
{
CHECK_PROCESS (process);
@@ -1411,7 +1420,7 @@ usage: (start-process NAME BUFFER PROGRAM &rest PROGRAM-ARGS) */)
val = XCDR (Vdefault_process_coding_system);
}
XPROCESS (proc)->encode_coding_system = val;
- /* Note: At this momemnt, the above coding system may leave
+ /* Note: At this moment, the above coding system may leave
text-conversion or eol-conversion unspecified. They will be
decided after we read output from the process and decode it by
some coding system, or just before we actually send a text to
@@ -1518,8 +1527,9 @@ start_process_unwind (Lisp_Object proc)
if (!PROCESSP (proc))
abort ();
- /* Was PROC started successfully? */
- if (XPROCESS (proc)->pid == -1)
+ /* Was PROC started successfully?
+ -2 is used for a pty with no process, eg for gdb. */
+ if (XPROCESS (proc)->pid <= 0 && XPROCESS (proc)->pid != -2)
remove_process (proc);
return Qnil;
@@ -2518,7 +2528,7 @@ could be "COM1", or "\\\\.\\COM10" for ports higher than COM9 (double
the backslashes in strings).
:speed SPEED -- (mandatory) is handled by `serial-process-configure',
-which is called by `make-serial-process'.
+which this function calls.
:name NAME -- NAME is the name of the process. If NAME is not given,
the value of PORT is used.
@@ -2547,13 +2557,12 @@ but you can send outgoing data. The stopped state is cleared by
:plist PLIST -- Install PLIST as the initial plist of the process.
-:speed
:bytesize
:parity
:stopbits
:flowcontrol
--- These arguments are handled by `serial-process-configure', which is
-called by `make-serial-process'.
+-- This function calls `serial-process-configure' to handle these
+arguments.
The original argument list, possibly modified by later configuration,
is available via the function `process-contact'.
@@ -2787,7 +2796,7 @@ The stopped state is cleared by `continue-process' and set by
:filter-multibyte BOOL -- If BOOL is non-nil, strings given to the
process filter are multibyte, otherwise they are unibyte.
If this keyword is not specified, the strings are multibyte if
-`default-enable-multibyte-characters' is non-nil.
+the default value of `enable-multibyte-characters' is non-nil.
:sentinel SENTINEL -- Install SENTINEL as the process sentinel.
@@ -2921,7 +2930,7 @@ usage: (make-network-process &rest ARGS) */)
{
/* Don't support network sockets when non-blocking mode is
not available, since a blocked Emacs is not useful. */
-#if !defined(O_NONBLOCK) && !defined(O_NDELAY)
+#if !defined (O_NONBLOCK) && !defined (O_NDELAY)
error ("Network servers not supported");
#else
is_server = 1;
@@ -2975,7 +2984,7 @@ usage: (make-network-process &rest ARGS) */)
tem = Fplist_get (contact, QCfamily);
if (NILP (tem))
{
-#if defined(HAVE_GETADDRINFO) && defined(AF_INET6)
+#if defined (HAVE_GETADDRINFO) && defined (AF_INET6)
family = AF_UNSPEC;
#else
family = AF_INET;
@@ -3117,7 +3126,7 @@ usage: (make-network-process &rest ARGS) */)
{
struct hostent *host_info_ptr;
- /* gethostbyname may fail with TRY_AGAIN, but we don't honour that,
+ /* gethostbyname may fail with TRY_AGAIN, but we don't honor that,
as it may `hang' Emacs for a very long time. */
immediate_quit = 1;
QUIT;
@@ -3471,7 +3480,7 @@ usage: (make-network-process &rest ARGS) */)
{
/* Setup coding systems for communicating with the network stream. */
- struct gcpro inner_gcpro1;
+ struct gcpro gcpro1;
/* Qt denotes we have not yet called Ffind_operation_coding_system. */
Lisp_Object coding_systems = Qt;
Lisp_Object fargs[5], val;
@@ -3488,7 +3497,7 @@ usage: (make-network-process &rest ARGS) */)
|| (NILP (buffer) && NILP (BVAR (&buffer_defaults, enable_multibyte_characters))))
/* We dare not decode end-of-line format by setting VAL to
Qraw_text, because the existing Emacs Lisp libraries
- assume that they receive bare code including a sequene of
+ assume that they receive bare code including a sequence of
CR LF. */
val = Qnil;
else
@@ -3499,9 +3508,9 @@ usage: (make-network-process &rest ARGS) */)
{
fargs[0] = Qopen_network_stream, fargs[1] = name,
fargs[2] = buffer, fargs[3] = host, fargs[4] = service;
- GCPRO1_VAR (proc, inner_gcpro);
+ GCPRO1 (proc);
coding_systems = Ffind_operation_coding_system (5, fargs);
- UNGCPRO_VAR (inner_gcpro);
+ UNGCPRO;
}
if (CONSP (coding_systems))
val = XCAR (coding_systems);
@@ -3532,9 +3541,9 @@ usage: (make-network-process &rest ARGS) */)
{
fargs[0] = Qopen_network_stream, fargs[1] = name,
fargs[2] = buffer, fargs[3] = host, fargs[4] = service;
- GCPRO1_VAR (proc, inner_gcpro);
+ GCPRO1 (proc);
coding_systems = Ffind_operation_coding_system (5, fargs);
- UNGCPRO_VAR (inner_gcpro);
+ UNGCPRO;
}
}
if (CONSP (coding_systems))
@@ -3560,7 +3569,7 @@ usage: (make-network-process &rest ARGS) */)
}
-#if defined(HAVE_NET_IF_H)
+#if defined (HAVE_NET_IF_H)
#ifdef SIOCGIFCONF
DEFUN ("network-interface-list", Fnetwork_interface_list, Snetwork_interface_list, 0, 0, 0,
@@ -3573,52 +3582,27 @@ format; see the description of ADDRESS in `make-network-process'. */)
struct ifconf ifconf;
struct ifreq *ifreq;
void *buf = NULL;
- int buf_size = 512, s, i;
+ ptrdiff_t buf_size = 512;
+ int s, i;
Lisp_Object res;
s = socket (AF_INET, SOCK_STREAM, 0);
if (s < 0)
return Qnil;
- ifconf.ifc_buf = 0;
- ifconf.ifc_len = 0;
- if (ioctl (s, SIOCGIFCONF, &ifconf) == 0 && ifconf.ifc_len > 0)
+ do
{
- ifconf.ifc_buf = xmalloc (ifconf.ifc_len);
- if (ifconf.ifc_buf == NULL)
- {
- close (s);
- return Qnil;
- }
+ buf = xpalloc (buf, &buf_size, 1, INT_MAX, 1);
+ ifconf.ifc_buf = buf;
+ ifconf.ifc_len = buf_size;
if (ioctl (s, SIOCGIFCONF, &ifconf))
{
close (s);
- xfree (ifconf.ifc_buf);
+ xfree (buf);
return Qnil;
}
}
- else
- do
- {
- buf_size *= 2;
- buf = xrealloc (buf, buf_size);
- if (!buf)
- {
- close (s);
- return Qnil;
- }
-
- ifconf.ifc_buf = buf;
- ifconf.ifc_len = buf_size;
- if (ioctl (s, SIOCGIFCONF, &ifconf))
- {
- close (s);
- xfree (buf);
- return Qnil;
- }
-
- }
- while (ifconf.ifc_len == buf_size);
+ while (ifconf.ifc_len == buf_size);
close (s);
@@ -3656,7 +3640,7 @@ format; see the description of ADDRESS in `make-network-process'. */)
}
#endif /* SIOCGIFCONF */
-#if defined(SIOCGIFADDR) || defined(SIOCGIFHWADDR) || defined(SIOCGIFFLAGS)
+#if defined (SIOCGIFADDR) || defined (SIOCGIFHWADDR) || defined (SIOCGIFFLAGS)
struct ifflag_def {
int flag_bit;
@@ -3739,7 +3723,7 @@ DEFUN ("network-interface-info", Fnetwork_interface_info, Snetwork_interface_inf
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,
-NETMASK is the layer 3 network mask, HWADDR is the layer 2 addres, and
+NETMASK is the layer 3 network mask, HWADDR is the layer 2 address, and
FLAGS is the current flags of the interface. */)
(Lisp_Object ifname)
{
@@ -3763,7 +3747,7 @@ FLAGS is the current flags of the interface. */)
return Qnil;
elt = Qnil;
-#if defined(SIOCGIFFLAGS) && defined(HAVE_STRUCT_IFREQ_IFR_FLAGS)
+#if defined (SIOCGIFFLAGS) && defined (HAVE_STRUCT_IFREQ_IFR_FLAGS)
if (ioctl (s, SIOCGIFFLAGS, &rq) == 0)
{
int flags = rq.ifr_flags;
@@ -3797,7 +3781,7 @@ FLAGS is the current flags of the interface. */)
res = Fcons (elt, res);
elt = Qnil;
-#if defined(SIOCGIFHWADDR) && defined(HAVE_STRUCT_IFREQ_IFR_HWADDR)
+#if defined (SIOCGIFHWADDR) && defined (HAVE_STRUCT_IFREQ_IFR_HWADDR)
if (ioctl (s, SIOCGIFHWADDR, &rq) == 0)
{
Lisp_Object hwaddr = Fmake_vector (make_number (6), Qnil);
@@ -3809,7 +3793,7 @@ FLAGS is the current flags of the interface. */)
p->contents[n] = make_number (((unsigned char *)&rq.ifr_hwaddr.sa_data[0])[n]);
elt = Fcons (make_number (rq.ifr_hwaddr.sa_family), hwaddr);
}
-#elif defined(HAVE_GETIFADDRS) && defined(LLADDR)
+#elif defined (HAVE_GETIFADDRS) && defined (LLADDR)
if (getifaddrs (&ifap) != -1)
{
Lisp_Object hwaddr = Fmake_vector (make_number (6), Qnil);
@@ -3827,7 +3811,7 @@ FLAGS is the current flags of the interface. */)
|| sdl->sdl_alen != 6)
continue;
- memcpy (linkaddr, LLADDR(sdl), sdl->sdl_alen);
+ memcpy (linkaddr, LLADDR (sdl), sdl->sdl_alen);
for (n = 0; n < 6; n++)
p->contents[n] = make_number (linkaddr[n]);
@@ -3844,7 +3828,7 @@ FLAGS is the current flags of the interface. */)
res = Fcons (elt, res);
elt = Qnil;
-#if defined(SIOCGIFNETMASK) && (defined(HAVE_STRUCT_IFREQ_IFR_NETMASK) || defined(HAVE_STRUCT_IFREQ_IFR_ADDR))
+#if defined (SIOCGIFNETMASK) && (defined (HAVE_STRUCT_IFREQ_IFR_NETMASK) || defined (HAVE_STRUCT_IFREQ_IFR_ADDR))
if (ioctl (s, SIOCGIFNETMASK, &rq) == 0)
{
any = 1;
@@ -3858,7 +3842,7 @@ FLAGS is the current flags of the interface. */)
res = Fcons (elt, res);
elt = Qnil;
-#if defined(SIOCGIFBRDADDR) && defined(HAVE_STRUCT_IFREQ_IFR_BROADADDR)
+#if defined (SIOCGIFBRDADDR) && defined (HAVE_STRUCT_IFREQ_IFR_BROADADDR)
if (ioctl (s, SIOCGIFBRDADDR, &rq) == 0)
{
any = 1;
@@ -3868,7 +3852,7 @@ FLAGS is the current flags of the interface. */)
res = Fcons (elt, res);
elt = Qnil;
-#if defined(SIOCGIFADDR) && defined(HAVE_STRUCT_IFREQ_IFR_ADDR)
+#if defined (SIOCGIFADDR) && defined (HAVE_STRUCT_IFREQ_IFR_ADDR)
if (ioctl (s, SIOCGIFADDR, &rq) == 0)
{
any = 1;
@@ -3882,7 +3866,7 @@ FLAGS is the current flags of the interface. */)
return any ? res : Qnil;
}
#endif
-#endif /* defined(HAVE_NET_IF_H) */
+#endif /* defined (HAVE_NET_IF_H) */
/* Turn off input and output for process PROC. */
@@ -3892,6 +3876,11 @@ deactivate_process (Lisp_Object proc)
register int inchannel, outchannel;
register struct Lisp_Process *p = XPROCESS (proc);
+#ifdef HAVE_GNUTLS
+ /* Delete GnuTLS structures in PROC, if any. */
+ emacs_gnutls_deinit (proc);
+#endif /* HAVE_GNUTLS */
+
inchannel = p->infd;
outchannel = p->outfd;
@@ -4637,15 +4626,46 @@ wait_reading_process_output (int time_limit, int microsecs, int read_kbd,
some data in the TCP buffers so that select works, but
with custom pull/push functions we need to check if some
data is available in the buffers manually. */
- if (nfds == 0 &&
- wait_proc && wait_proc->gnutls_p /* Check for valid process. */
- /* Do we have pending data? */
- && emacs_gnutls_record_check_pending (wait_proc->gnutls_state) > 0)
- {
- nfds = 1;
- /* Set to Available. */
- FD_SET (wait_proc->infd, &Available);
- }
+ if (nfds == 0)
+ {
+ if (! wait_proc)
+ {
+ /* We're not waiting on a specific process, so loop
+ through all the channels and check for data.
+ This is a workaround needed for some versions of
+ the gnutls library -- 2.12.14 has been confirmed
+ to need it. See
+ http://comments.gmane.org/gmane.emacs.devel/145074 */
+ for (channel = 0; channel < MAXDESC; ++channel)
+ if (! NILP (chan_process[channel]))
+ {
+ struct Lisp_Process *p =
+ XPROCESS (chan_process[channel]);
+ if (p && p->gnutls_p && p->infd
+ && ((emacs_gnutls_record_check_pending
+ (p->gnutls_state))
+ > 0))
+ {
+ nfds++;
+ FD_SET (p->infd, &Available);
+ }
+ }
+ }
+ else
+ {
+ /* Check this specific channel. */
+ if (wait_proc->gnutls_p /* Check for valid process. */
+ /* Do we have pending data? */
+ && ((emacs_gnutls_record_check_pending
+ (wait_proc->gnutls_state))
+ > 0))
+ {
+ nfds = 1;
+ /* Set to Available. */
+ FD_SET (wait_proc->infd, &Available);
+ }
+ }
+ }
#endif
}
@@ -4873,20 +4893,27 @@ wait_reading_process_output (int time_limit, int microsecs, int read_kbd,
It can't hurt. */
else if (nread == -1 && errno == EIO)
{
+ struct Lisp_Process *p = XPROCESS (proc);
+
/* Clear the descriptor now, so we only raise the
- signal once. Don't do this if `process' is only
- a pty. */
- if (XPROCESS (proc)->pid != -2)
- {
- FD_CLR (channel, &input_wait_mask);
- FD_CLR (channel, &non_keyboard_wait_mask);
+ signal once. */
+ FD_CLR (channel, &input_wait_mask);
+ FD_CLR (channel, &non_keyboard_wait_mask);
- kill (getpid (), SIGCHLD);
+ if (p->pid == -2)
+ {
+ /* If the EIO occurs on a pty, sigchld_handler's
+ wait3() will not find the process object to
+ delete. Do it here. */
+ p->tick = ++process_tick;
+ p->status = Qfailed;
}
+ else
+ kill (getpid (), SIGCHLD);
}
#endif /* HAVE_PTYS */
- /* If we can detect process termination, don't consider the process
- gone just because its pipe is closed. */
+ /* If we can detect process termination, don't consider the
+ process gone just because its pipe is closed. */
#ifdef SIGCHLD
else if (nread == 0 && !NETCONN_P (proc) && !SERIALCONN_P (proc))
;
@@ -5050,9 +5077,8 @@ read_process_output (Lisp_Object proc, register int channel)
proc_buffered_char[channel] = -1;
}
#ifdef HAVE_GNUTLS
- if (XPROCESS (proc)->gnutls_p)
- nbytes = emacs_gnutls_read (XPROCESS (proc),
- chars + carryover + buffered,
+ if (p->gnutls_p)
+ nbytes = emacs_gnutls_read (p, chars + carryover + buffered,
readmax - buffered);
else
#endif
@@ -5186,6 +5212,9 @@ read_process_output (Lisp_Object proc, register int channel)
p->decoding_carryover = coding->carryover_bytes;
}
if (SBYTES (text) > 0)
+ /* FIXME: It's wrong to wrap or not based on debug-on-error, and
+ sometimes it's simply wrong to wrap (e.g. when called from
+ accept-process-output). */
internal_condition_case_1 (read_process_output_call,
Fcons (outstream,
Fcons (proc, Fcons (text, Qnil))),
@@ -5396,8 +5425,8 @@ send_process (volatile Lisp_Object proc, const char *volatile buf,
sending a multibyte text, thus we must encode it by the
original coding system specified for the current process.
- Another reason we comming here is that the coding system
- was just complemented and new one was returned by
+ Another reason we come here is that the coding system
+ was just complemented and a new one was returned by
complement_process_encoding_system. */
setup_coding_system (p->encode_coding_system, coding);
Vlast_coding_system_used = p->encode_coding_system;
@@ -5406,6 +5435,7 @@ send_process (volatile Lisp_Object proc, const char *volatile buf,
}
else
{
+ coding->src_multibyte = 0;
/* For sending a unibyte text, character code conversion should
not take place but EOL conversion should. So, setup raw-text
or one of the subsidiary if we have not yet done it. */
@@ -5513,9 +5543,8 @@ send_process (volatile Lisp_Object proc, const char *volatile buf,
#endif
{
#ifdef HAVE_GNUTLS
- if (XPROCESS (proc)->gnutls_p)
- written = emacs_gnutls_write (XPROCESS (proc),
- buf, this);
+ if (p->gnutls_p)
+ written = emacs_gnutls_write (p, buf, this);
else
#endif
written = emacs_write (outfd, buf, this);
@@ -7302,7 +7331,7 @@ init_process (void)
#ifdef HAVE_GETSOCKNAME
ADD_SUBFEATURE (QCservice, Qt);
#endif
-#if defined(O_NONBLOCK) || defined(O_NDELAY)
+#if defined (O_NONBLOCK) || defined (O_NDELAY)
ADD_SUBFEATURE (QCserver, Qt);
#endif
@@ -7494,14 +7523,14 @@ The variable takes effect when `start-process' is called. */);
defsubr (&Sset_network_process_option);
defsubr (&Smake_network_process);
defsubr (&Sformat_network_address);
-#if defined(HAVE_NET_IF_H)
+#if defined (HAVE_NET_IF_H)
#ifdef SIOCGIFCONF
defsubr (&Snetwork_interface_list);
#endif
-#if defined(SIOCGIFADDR) || defined(SIOCGIFHWADDR) || defined(SIOCGIFFLAGS)
+#if defined (SIOCGIFADDR) || defined (SIOCGIFHWADDR) || defined (SIOCGIFFLAGS)
defsubr (&Snetwork_interface_info);
#endif
-#endif /* defined(HAVE_NET_IF_H) */
+#endif /* defined (HAVE_NET_IF_H) */
#ifdef DATAGRAM_SOCKETS
defsubr (&Sprocess_datagram_address);
defsubr (&Sset_process_datagram_address);