X-Git-Url: http://git.chise.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=src%2Fprocess-unix.c;h=ebe75c6683ee32fa1e101f63faf4210a3f80162c;hb=762383636a99307282c2d93d26c35c046ec24da1;hp=a62b7f92392b7b17ef8e29e79fedb063493eddf9;hpb=77dcef404dc78635f6ffa8f71a803d2bc7cc8921;p=chise%2Fxemacs-chise.git.1 diff --git a/src/process-unix.c b/src/process-unix.c index a62b7f9..ebe75c6 100644 --- a/src/process-unix.c +++ b/src/process-unix.c @@ -28,6 +28,9 @@ Boston, MA 02111-1307, USA. */ Kirill M. Katsnelson , so please bash him and not the original author(s) */ +/* The IPv6 support is derived from the code for GNU Emacs-20.3 + written by Wolfgang S. Rupprecht */ + #include #if !defined (NO_SUBPROCESSES) @@ -124,7 +127,7 @@ close_descriptor_pair (int in, int out) to get rid of irrelevant descriptors. */ static int -close_process_descs_mapfun (CONST void* key, void* contents, void* arg) +close_process_descs_mapfun (const void* key, void* contents, void* arg) { Lisp_Object proc; CVOID_TO_LISP (proc, contents); @@ -212,9 +215,11 @@ allocate_pty (void) end of the ptys. */ int failed_count = 0; #endif - int i; int fd; +#ifndef HAVE_GETPT + int i; int c; +#endif #ifdef PTY_ITERATION PTY_ITERATION @@ -261,7 +266,7 @@ allocate_pty (void) #else sprintf (pty_name, "/dev/tty%c%x", c, i); #endif /* no PTY_TTY_NAME_SPRINTF */ -#ifndef UNIPLUS +#if !defined(UNIPLUS) && !defined(HAVE_GETPT) if (access (pty_name, 6) != 0) { close (fd); @@ -308,6 +313,7 @@ create_bidirectional_pipe (int *inchannel, int *outchannel, #ifdef HAVE_SOCKETS +#if !(defined(HAVE_GETADDRINFO) && defined(HAVE_GETNAMEINFO)) static int get_internet_address (Lisp_Object host, struct sockaddr_in *address, Error_behavior errb) @@ -363,9 +369,10 @@ get_internet_address (Lisp_Object host, struct sockaddr_in *address, return 1; } +#endif /* !(HAVE_GETADDRINFO && HAVE_GETNAMEINFO) */ static void -set_socket_nonblocking_maybe (int fd, int port, CONST char* proto) +set_socket_nonblocking_maybe (int fd, int port, const char* proto) { #ifdef PROCESS_IO_BLOCKING Lisp_Object tail; @@ -384,7 +391,7 @@ set_socket_nonblocking_maybe (int fd, int port, CONST char* proto) else continue; } - else if ((INTP (tail_port)) && (htons ((unsigned short) XINT (tail_port)) == port)) + else if (INTP (tail_port) && (htons ((unsigned short) XINT (tail_port)) == port)) break; } @@ -403,7 +410,7 @@ set_socket_nonblocking_maybe (int fd, int port, CONST char* proto) the numeric status that was returned by `wait'. */ static void -update_status_from_wait_code (struct Lisp_Process *p, int *w_fmh) +update_status_from_wait_code (Lisp_Process *p, int *w_fmh) { /* C compiler lossage when attempting to pass w directly */ int w = *w_fmh; @@ -518,7 +525,7 @@ record_exited_processes (int block_sigchld) } /* For any processes that have changed status and are recorded - and such, update the corresponding struct Lisp_Process. + and such, update the corresponding Lisp_Process. We separate this from record_exited_processes() so that we never have to call this function from within a signal handler. We block SIGCHLD in case record_exited_processes() @@ -647,7 +654,7 @@ process_signal_char (int tty_fd, int signo) */ static void -unix_alloc_process_data (struct Lisp_Process *p) +unix_alloc_process_data (Lisp_Process *p) { p->process_data = xnew (struct unix_process_data); @@ -663,10 +670,9 @@ unix_alloc_process_data (struct Lisp_Process *p) */ static void -unix_mark_process_data (struct Lisp_Process *proc, - void (*markobj) (Lisp_Object)) +unix_mark_process_data (Lisp_Process *proc) { - markobj (UNIX_DATA(proc)->tty_name); + mark_object (UNIX_DATA(proc)->tty_name); } /* @@ -692,13 +698,13 @@ unix_init_process (void) */ static void -unix_init_process_io_handles (struct Lisp_Process *p, void* in, void* out, int flags) +unix_init_process_io_handles (Lisp_Process *p, void* in, void* out, int flags) { UNIX_DATA(p)->infd = (int)in; } /* - * Fork off a subprocess. P is a pointer to newly created subprocess + * Fork off a subprocess. P is a pointer to a newly created subprocess * object. If this function signals, the caller is responsible for * deleting (and finalizing) the process object. * @@ -708,36 +714,19 @@ unix_init_process_io_handles (struct Lisp_Process *p, void* in, void* out, int f */ static int -unix_create_process (struct Lisp_Process *p, +unix_create_process (Lisp_Process *p, Lisp_Object *argv, int nargv, Lisp_Object program, Lisp_Object cur_dir) { /* This function rewritten by ben@xemacs.org. */ - int pid, inchannel, outchannel; + int pid; + int inchannel = -1; + int outchannel = -1; /* Use volatile to protect variables from being clobbered by longjmp. */ - volatile int forkin, forkout; + volatile int forkin = -1; + volatile int forkout = -1; volatile int pty_flag = 0; - char **env; - char **new_argv; - char *current_dir; - int i; - - env = environ; - - inchannel = outchannel = forkin = forkout = -1; - - /* Nothing below here GCs so our string pointers shouldn't move. */ - new_argv = alloca_array (char *, nargv + 2); - GET_C_STRING_FILENAME_DATA_ALLOCA (program, new_argv[0]); - for (i = 0; i < nargv; i++) - { - Lisp_Object tem = argv[i]; - CHECK_STRING (tem); - new_argv[i + 1] = (char *) XSTRING_DATA (tem); - } - new_argv[i + 1] = 0; - GET_C_STRING_FILENAME_DATA_ALLOCA (cur_dir, current_dir); #ifdef HAVE_PTYS if (!NILP (Vprocess_connection_type)) @@ -755,7 +744,7 @@ unix_create_process (struct Lisp_Process *p, better error checking. */ #if !defined(USG) /* On USG systems it does not work to open the pty's tty here - and then close and reopen it in the child. */ + and then close and reopen it in the child. */ #ifdef O_NOCTTY /* Don't let this terminal become our controlling terminal (in case we don't have one). */ @@ -790,7 +779,7 @@ unix_create_process (struct Lisp_Process *p, UNIX_DATA(p)->subtty = forkin; { -#if !defined(__CYGWIN32__) +#if !defined(CYGWIN) /* child_setup must clobber environ on systems with true vfork. Protect it from permanent change. */ char **save_environ = environ; @@ -915,21 +904,41 @@ unix_create_process (struct Lisp_Process *p, */ signal (SIGHUP, SIG_DFL); } + + if (pty_flag) + /* Set up the terminal characteristics of the pty. */ + child_setup_tty (xforkout); + #endif /* HAVE_PTYS */ - signal (SIGINT, SIG_DFL); + signal (SIGINT, SIG_DFL); signal (SIGQUIT, SIG_DFL); - if (pty_flag) - { - /* Set up the terminal characteristics of the pty. */ - child_setup_tty (xforkout); - } + { + char *current_dir; + char **new_argv = alloca_array (char *, nargv + 2); + int i; - child_setup (xforkin, xforkout, xforkout, new_argv, current_dir); - } + /* Nothing below here GCs so our string pointers shouldn't move. */ + new_argv[0] = (char *) XSTRING_DATA (program); + for (i = 0; i < nargv; i++) + { + CHECK_STRING (argv[i]); + new_argv[i + 1] = (char *) XSTRING_DATA (argv[i]); + } + new_argv[i + 1] = 0; + + TO_EXTERNAL_FORMAT (LISP_STRING, cur_dir, + C_STRING_ALLOCA, current_dir, + Qfile_name); + + child_setup (xforkin, xforkout, xforkout, new_argv, current_dir); + } + + } /**** End of child code ****/ -#if !defined(__CYGWIN32__) + /**** Back in parent process ****/ +#if !defined(CYGWIN) environ = save_environ; #endif } @@ -968,20 +977,19 @@ unix_create_process (struct Lisp_Process *p, io_failure: { - int temp = errno; + int save_errno = errno; close_descriptor_pair (forkin, forkout); close_descriptor_pair (inchannel, outchannel); - errno = temp; + errno = save_errno; report_file_error ("Opening pty or pipe", Qnil); + return 0; /* not reached */ } - - RETURN_NOT_REACHED (0); } /* Return nonzero if this process is a ToolTalk connection. */ static int -unix_tooltalk_connection_p (struct Lisp_Process *p) +unix_tooltalk_connection_p (Lisp_Process *p) { return UNIX_DATA(p)->connected_via_filedesc_p; } @@ -989,7 +997,7 @@ unix_tooltalk_connection_p (struct Lisp_Process *p) /* This is called to set process' virtual terminal size */ static int -unix_set_window_size (struct Lisp_Process* p, int cols, int rows) +unix_set_window_size (Lisp_Process* p, int cols, int rows) { return set_window_size (UNIX_DATA(p)->infd, cols, rows); } @@ -1004,7 +1012,7 @@ unix_set_window_size (struct Lisp_Process* p, int cols, int rows) #ifdef HAVE_WAITPID static void -unix_update_status_if_terminated (struct Lisp_Process* p) +unix_update_status_if_terminated (Lisp_Process* p) { int w; #ifdef SIGCHLD @@ -1030,7 +1038,7 @@ static void unix_reap_exited_processes (void) { int i; - struct Lisp_Process *p; + Lisp_Process *p; #ifndef OBNOXIOUS_SYSV_SIGCLD_BEHAVIOR record_exited_processes (1); @@ -1129,8 +1137,16 @@ unix_send_process (Lisp_Object proc, struct lstream* lstream) /* Use volatile to protect variables from being clobbered by longjmp. */ SIGTYPE (*volatile old_sigpipe) (int) = 0; volatile Lisp_Object vol_proc = proc; - struct Lisp_Process *volatile p = XPROCESS (proc); + Lisp_Process *volatile p = XPROCESS (proc); + + /* #### JV: layering violation? + This function knows too much about the relation between the encodingstream + (DATA_OUTSTREAM) and te actual output stream p->output_stream. + + If encoding streams properly forwarded all calls, we could simply + use DATA_OUTSTREAM everywhere. */ + if (!SETJMP (send_process_frame)) { /* use a reasonable-sized buffer (somewhere around the size of the @@ -1141,7 +1157,7 @@ unix_send_process (Lisp_Object proc, struct lstream* lstream) while (1) { - int writeret; + ssize_t writeret; chunklen = Lstream_read (lstream, chunkbuf, 512); if (chunklen <= 0) @@ -1165,6 +1181,9 @@ unix_send_process (Lisp_Object proc, struct lstream* lstream) that may allow the program to finish doing output and read more. */ Faccept_process_output (Qnil, make_int (1), Qnil); + /* It could have *really* finished, deleting the process */ + if (NILP(p->pipe_outstream)) + return; old_sigpipe = (SIGTYPE (*) (int)) signal (SIGPIPE, send_process_trap); Lstream_flush (XLSTREAM (p->pipe_outstream)); @@ -1215,7 +1234,7 @@ unix_process_send_eof (Lisp_Object proc) Bufbyte eof_char = get_eof_char (XPROCESS (proc)); send_process (proc, Qnil, &eof_char, 0, 1); #else - send_process (proc, Qnil, (CONST Bufbyte *) "\004", 0, 1); + send_process (proc, Qnil, (const Bufbyte *) "\004", 0, 1); #endif return 1; } @@ -1235,7 +1254,7 @@ unix_process_send_eof (Lisp_Object proc) */ static USID -unix_deactivate_process (struct Lisp_Process *p) +unix_deactivate_process (Lisp_Process *p) { SIGTYPE (*old_sigpipe) (int) = 0; USID usid; @@ -1274,7 +1293,7 @@ unix_kill_child_process (Lisp_Object proc, int signo, int gid; int no_pgrp = 0; int kill_retval; - struct Lisp_Process *p = XPROCESS (proc); + Lisp_Process *p = XPROCESS (proc); if (!UNIX_DATA(p)->pty_flag) current_group = 0; @@ -1394,7 +1413,7 @@ unix_kill_process_by_pid (int pid, int sigcode) */ static Lisp_Object -unix_get_tty_name (struct Lisp_Process *p) +unix_get_tty_name (Lisp_Process *p) { return UNIX_DATA (p)->tty_name; } @@ -1409,6 +1428,43 @@ unix_get_tty_name (struct Lisp_Process *p) static Lisp_Object unix_canonicalize_host_name (Lisp_Object host) { +#if defined(HAVE_GETADDRINFO) && defined(HAVE_GETNAMEINFO) + struct addrinfo hints, *res; + static char addrbuf[NI_MAXHOST]; + Lisp_Object canonname; + int retval; + char *ext_host; + + xzero (hints); + hints.ai_flags = AI_CANONNAME; + hints.ai_family = AF_UNSPEC; + hints.ai_socktype = SOCK_STREAM; + hints.ai_protocol = 0; + TO_EXTERNAL_FORMAT (LISP_STRING, host, C_STRING_ALLOCA, ext_host, Qnative); + retval = getaddrinfo (ext_host, NULL, &hints, &res); + if (retval != 0) + { + char *gai_error; + + TO_INTERNAL_FORMAT (C_STRING, gai_strerror (retval), + C_STRING_ALLOCA, gai_error, + Qnative); + maybe_error (Qprocess, ERROR_ME_NOT, + "%s \"%s\"", gai_error, XSTRING_DATA (host)); + canonname = host; + } + else + { + int gni = getnameinfo (res->ai_addr, res->ai_addrlen, + addrbuf, sizeof(addrbuf), + NULL, 0, NI_NUMERICHOST); + canonname = gni ? host : build_ext_string (addrbuf, Qnative); + + freeaddrinfo (res); + } + + return canonname; +#else /* ! HAVE_GETADDRINFO */ struct sockaddr_in address; if (!get_internet_address (host, &address, ERROR_ME_NOT)) @@ -1419,6 +1475,7 @@ unix_canonicalize_host_name (Lisp_Object host) else /* #### any clue what to do here? */ return host; +#endif /* ! HAVE_GETADDRINFO */ } /* open a TCP network connection to a given HOST/SERVICE. Treated @@ -1429,104 +1486,278 @@ unix_canonicalize_host_name (Lisp_Object host) static void unix_open_network_stream (Lisp_Object name, Lisp_Object host, Lisp_Object service, - Lisp_Object family, void** vinfd, void** voutfd) + Lisp_Object protocol, void** vinfd, void** voutfd) { - struct sockaddr_in address; - int s, inch, outch; + int inch; + int outch; + volatile int s; volatile int port; volatile int retry = 0; int retval; CHECK_STRING (host); - if (!EQ (family, Qtcpip)) - error ("Unsupported protocol family \"%s\"", - string_data (symbol_name (XSYMBOL (family)))); + if (!EQ (protocol, Qtcp) && !EQ (protocol, Qudp)) + error ("Unsupported protocol \"%s\"", + string_data (symbol_name (XSYMBOL (protocol)))); - if (INTP (service)) - port = htons ((unsigned short) XINT (service)); - else - { - struct servent *svc_info; - CHECK_STRING (service); - svc_info = getservbyname ((char *) XSTRING_DATA (service), "tcp"); - if (svc_info == 0) - error ("Unknown service \"%s\"", XSTRING_DATA (service)); - port = svc_info->s_port; - } + { +#if defined(HAVE_GETADDRINFO) && defined(HAVE_GETNAMEINFO) + struct addrinfo hints, *res; + struct addrinfo * volatile lres; + char *portstring; + volatile int xerrno = 0; + volatile int failed_connect = 0; + char *ext_host; + /* + * Caution: service can either be a string or int. + * Convert to a C string for later use by getaddrinfo. + */ + if (INTP (service)) + { + char portbuf[128]; + snprintf (portbuf, sizeof (portbuf), "%ld", (long) XINT (service)); + portstring = portbuf; + port = htons ((unsigned short) XINT (service)); + } + else + { + CHECK_STRING (service); + TO_EXTERNAL_FORMAT (LISP_STRING, service, + C_STRING_ALLOCA, portstring, + Qnative); + port = 0; + } - get_internet_address (host, &address, ERROR_ME); - address.sin_port = port; + xzero (hints); + hints.ai_flags = 0; + hints.ai_family = AF_UNSPEC; + if (EQ (protocol, Qtcp)) + hints.ai_socktype = SOCK_STREAM; + else /* EQ (protocol, Qudp) */ + hints.ai_socktype = SOCK_DGRAM; + hints.ai_protocol = 0; + TO_EXTERNAL_FORMAT (LISP_STRING, host, C_STRING_ALLOCA, ext_host, Qnative); + retval = getaddrinfo (ext_host, portstring, &hints, &res); + if (retval != 0) + { + char *gai_error; - s = socket (address.sin_family, SOCK_STREAM, 0); - if (s < 0) - report_file_error ("error creating socket", list1 (name)); + TO_INTERNAL_FORMAT (C_STRING, gai_strerror (retval), + C_STRING_ALLOCA, gai_error, + Qnative); + error ("%s/%s %s", XSTRING_DATA (host), portstring, gai_error); + } - /* Turn off interrupts here -- see comments below. There used to - be code which called bind_polling_period() to slow the polling - period down rather than turn it off, but that seems rather - bogus to me. Best thing here is to use a non-blocking connect - or something, to check for QUIT. */ + /* address loop */ + for (lres = res; lres ; lres = lres->ai_next) + { + if (EQ (protocol, Qtcp)) + s = socket (lres->ai_family, SOCK_STREAM, 0); + else /* EQ (protocol, Qudp) */ + s = socket (lres->ai_family, SOCK_DGRAM, 0); - /* Comments that are not quite valid: */ + if (s < 0) + continue; - /* Kernel bugs (on Ultrix at least) cause lossage (not just EINTR) - when connect is interrupted. So let's not let it get interrupted. - Note we do not turn off polling, because polling is only used - when not interrupt_input, and thus not normally used on the systems - which have this bug. On systems which use polling, there's no way - to quit if polling is turned off. */ + /* Turn off interrupts here -- see comments below. There used to + be code which called bind_polling_period() to slow the polling + period down rather than turn it off, but that seems rather + bogus to me. Best thing here is to use a non-blocking connect + or something, to check for QUIT. */ - /* Slow down polling. Some kernels have a bug which causes retrying - connect to fail after a connect. */ + /* Comments that are not quite valid: */ - slow_down_interrupts (); + /* Kernel bugs (on Ultrix at least) cause lossage (not just EINTR) + when connect is interrupted. So let's not let it get interrupted. + Note we do not turn off polling, because polling is only used + when not interrupt_input, and thus not normally used on the systems + which have this bug. On systems which use polling, there's no way + to quit if polling is turned off. */ - loop: + /* Slow down polling. Some kernels have a bug which causes retrying + connect to fail after a connect. */ - /* A system call interrupted with a SIGALRM or SIGIO comes back - here, with can_break_system_calls reset to 0. */ - SETJMP (break_system_call_jump); - if (QUITP) - { - speed_up_interrupts (); - REALLY_QUIT; - /* In case something really weird happens ... */ - slow_down_interrupts (); - } + slow_down_interrupts (); - /* Break out of connect with a signal (it isn't otherwise possible). - Thus you don't get screwed with a hung network. */ - can_break_system_calls = 1; - retval = connect (s, (struct sockaddr *) &address, sizeof (address)); - can_break_system_calls = 0; - if (retval == -1 && errno != EISCONN) - { - int xerrno = errno; - if (errno == EINTR) - goto loop; - if (errno == EADDRINUSE && retry < 20) - { - /* A delay here is needed on some FreeBSD systems, - and it is harmless, since this retrying takes time anyway - and should be infrequent. - `sleep-for' allowed for quitting this loop with interrupts - slowed down so it can't be used here. Async timers should - already be disabled at this point so we can use `sleep'. */ - sleep (1); - retry++; + loop: + + /* A system call interrupted with a SIGALRM or SIGIO comes back + here, with can_break_system_calls reset to 0. */ + SETJMP (break_system_call_jump); + if (QUITP) + { + speed_up_interrupts (); + REALLY_QUIT; + /* In case something really weird happens ... */ + slow_down_interrupts (); + } + + /* Break out of connect with a signal (it isn't otherwise possible). + Thus you don't get screwed with a hung network. */ + can_break_system_calls = 1; + retval = connect (s, lres->ai_addr, lres->ai_addrlen); + can_break_system_calls = 0; + if (retval == -1) + { + xerrno = errno; + if (errno != EISCONN) + { + if (errno == EINTR) + goto loop; + if (errno == EADDRINUSE && retry < 20) + { + /* A delay here is needed on some FreeBSD systems, + and it is harmless, since this retrying takes time anyway + and should be infrequent. + `sleep-for' allowed for quitting this loop with interrupts + slowed down so it can't be used here. Async timers should + already be disabled at this point so we can use `sleep'. */ + sleep (1); + retry++; + goto loop; + } + } + + failed_connect = 1; + close (s); + + speed_up_interrupts (); + + continue; + } + + if (port == 0) + { + int gni; + char servbuf[NI_MAXSERV]; + + if (EQ (protocol, Qtcp)) + gni = getnameinfo (lres->ai_addr, lres->ai_addrlen, + NULL, 0, servbuf, sizeof(servbuf), + NI_NUMERICSERV); + else /* EQ (protocol, Qudp) */ + gni = getnameinfo (lres->ai_addr, lres->ai_addrlen, + NULL, 0, servbuf, sizeof(servbuf), + NI_NUMERICSERV | NI_DGRAM); + + if (gni == 0) + port = strtol (servbuf, NULL, 10); + } + + break; + } /* address loop */ + + speed_up_interrupts (); + + freeaddrinfo (res); + if (s < 0) + { + errno = xerrno; + + if (failed_connect) + report_file_error ("connection failed", list2 (host, name)); + else + report_file_error ("error creating socket", list1 (name)); + } +#else /* ! HAVE_GETADDRINFO */ + struct sockaddr_in address; + + if (INTP (service)) + port = htons ((unsigned short) XINT (service)); + else + { + struct servent *svc_info; + CHECK_STRING (service); + + if (EQ (protocol, Qtcp)) + svc_info = getservbyname ((char *) XSTRING_DATA (service), "tcp"); + else /* EQ (protocol, Qudp) */ + svc_info = getservbyname ((char *) XSTRING_DATA (service), "udp"); + + if (svc_info == 0) + error ("Unknown service \"%s\"", XSTRING_DATA (service)); + port = svc_info->s_port; + } + + get_internet_address (host, &address, ERROR_ME); + address.sin_port = port; + + if (EQ (protocol, Qtcp)) + s = socket (address.sin_family, SOCK_STREAM, 0); + else /* EQ (protocol, Qudp) */ + s = socket (address.sin_family, SOCK_DGRAM, 0); + + if (s < 0) + report_file_error ("error creating socket", list1 (name)); + + /* Turn off interrupts here -- see comments below. There used to + be code which called bind_polling_period() to slow the polling + period down rather than turn it off, but that seems rather + bogus to me. Best thing here is to use a non-blocking connect + or something, to check for QUIT. */ + + /* Comments that are not quite valid: */ + + /* Kernel bugs (on Ultrix at least) cause lossage (not just EINTR) + when connect is interrupted. So let's not let it get interrupted. + Note we do not turn off polling, because polling is only used + when not interrupt_input, and thus not normally used on the systems + which have this bug. On systems which use polling, there's no way + to quit if polling is turned off. */ + + /* Slow down polling. Some kernels have a bug which causes retrying + connect to fail after a connect. */ + + slow_down_interrupts (); + + loop: + + /* A system call interrupted with a SIGALRM or SIGIO comes back + here, with can_break_system_calls reset to 0. */ + SETJMP (break_system_call_jump); + if (QUITP) + { + speed_up_interrupts (); + REALLY_QUIT; + /* In case something really weird happens ... */ + slow_down_interrupts (); + } + + /* Break out of connect with a signal (it isn't otherwise possible). + Thus you don't get screwed with a hung network. */ + can_break_system_calls = 1; + retval = connect (s, (struct sockaddr *) &address, sizeof (address)); + can_break_system_calls = 0; + if (retval == -1 && errno != EISCONN) + { + int xerrno = errno; + if (errno == EINTR) goto loop; - } + if (errno == EADDRINUSE && retry < 20) + { + /* A delay here is needed on some FreeBSD systems, + and it is harmless, since this retrying takes time anyway + and should be infrequent. + `sleep-for' allowed for quitting this loop with interrupts + slowed down so it can't be used here. Async timers should + already be disabled at this point so we can use `sleep'. */ + sleep (1); + retry++; + goto loop; + } - close (s); + close (s); - speed_up_interrupts (); + speed_up_interrupts (); - errno = xerrno; - report_file_error ("connection failed", list2 (host, name)); - } + errno = xerrno; + report_file_error ("connection failed", list2 (host, name)); + } - speed_up_interrupts (); + speed_up_interrupts (); +#endif /* ! HAVE_GETADDRINFO */ + } inch = s; outch = dup (s); @@ -1545,7 +1776,7 @@ unix_open_network_stream (Lisp_Object name, Lisp_Object host, Lisp_Object servic #ifdef HAVE_MULTICAST -/* Didier Verna Nov. 28 1997. +/* Didier Verna Nov. 28 1997. This function is similar to open-network-stream-internal, but provides a mean to open an UDP multicast connection instead of a TCP one. Like in the @@ -1624,7 +1855,7 @@ unix_open_multicast_group (Lisp_Object name, Lisp_Object dest, Lisp_Object port, imr.imr_multiaddr.s_addr = htonl (inet_addr ((char *) XSTRING_DATA (dest))); imr.imr_interface.s_addr = htonl (INADDR_ANY); if (setsockopt (rs, IPPROTO_IP, IP_ADD_MEMBERSHIP, - (char *) &imr, sizeof (struct ip_mreq)) < 0) + &imr, sizeof (struct ip_mreq)) < 0) { close (ws); close (rs); @@ -1690,7 +1921,7 @@ unix_open_multicast_group (Lisp_Object name, Lisp_Object dest, Lisp_Object port, /* scope */ if (setsockopt (ws, IPPROTO_IP, IP_MULTICAST_TTL, - (char *) &thettl, sizeof (thettl)) < 0) + &thettl, sizeof (thettl)) < 0) { close (rs); close (ws);