Mercurial > hg > xemacs-beta
annotate lib-src/tcp.c @ 814:a634e3b7acc8
[xemacs-hg @ 2002-04-14 12:41:59 by ben]
latest changes
TODO.ben-mule-21-5: Update.
make-docfile.c: Add basic support for handling ISO 2022 doc strings -- we parse
the basic charset designation sequences so we know whether we're
in ASCII and have to pay attention to end quotes and such.
Reformat code according to coding standards.
abbrev.el: Add `global-abbrev-mode', which turns on or off abbrev-mode in all
buffers. Added `defining-abbrev-turns-on-abbrev-mode' -- if
non-nil, defining an abbrev through an interactive function will
automatically turn on abbrev-mode, either globally or locally
depending on the command. This is the "what you'd expect"
behavior.
indent.el: general function for indenting a balanced expression in a
mode-correct way. Works similar to indent-region in that a mode
can specify a specific command to do the whole operation; if not,
figure out the region using forward-sexp and indent each line
using indent-according-to-mode.
keydefs.el: Removed.
Modify M-C-backslash to do indent-region-or-balanced-expression.
Make S-Tab just insert a TAB char, like it's meant to do.
make-docfile.el: Now that we're using the call-process-in-lisp, we need to load
an extra file win32-native.el because we're running a bare temacs.
menubar-items.el: Totally redo the Cmds menu so that most used commands appear
directly on the menu and less used commands appear in submenus.
The old way may have been very pretty, but rather impractical.
process.el: Under Windows, don't ever use old-call-process-internal, even
in batch mode. We can do processes in batch mode.
subr.el: Someone recoded truncate-string-to-width, saying "the FSF version
is too complicated and does lots of hard-to-understand stuff" but
the resulting recoded version was *totally* wrong! it
misunderstood the basic point of this function, which is work in
*columns* not chars. i dumped ours and copied the version from
FSF 21.1. Also added truncate-string-with-continuation-dots,
since this idiom is used often.
config.inc.samp, xemacs.mak: Separate out debug and optimize flags.
Remove all vestiges of USE_MINIMAL_TAGBITS,
USE_INDEXED_LRECORD_IMPLEMENTATION, and GUNG_HO, since those
ifdefs have long been removed.
Make error-checking support actually work.
Some rearrangement of config.inc.samp to make it more logical.
Remove callproc.c and ntproc.c from xemacs.mak, no longer used.
Make pdump the default.
lisp.h: Add support for strong type-checking of Bytecount, Bytebpos,
Charcount, Charbpos, and others, by making them classes,
overloading the operators to provide integer-like operation and
carefully controlling what operations are allowed. Not currently
enabled in C++ builds because there are still a number of compile
errors, and it won't really work till we merge in my "8-bit-Mule"
workspace, in which I make use of the new types Charxpos,
Bytexpos, Memxpos, representing a "position" either in a buffer or
a string. (This is especially important in the extent code.)
abbrev.c, alloc.c, eval.c, buffer.c, buffer.h, editfns.c, fns.c, text.h: Warning fixes, some of them related to new C++ strict type
checking of Bytecount, Charbpos, etc.
dired.c: Caught an actual error due to strong type checking -- char len
being passed when should be byte len.
alloc.c, backtrace.h, bytecode.c, bytecode.h, eval.c, sysdep.c: Further optimize Ffuncall:
-- process arg list at compiled-function creation time, converting
into an array for extra-quick access at funcall time.
-- rewrite funcall_compiled_function to use it, and inline this
function.
-- change the order of check for magic stuff in
SPECBIND_FAST_UNSAFE to be faster.
-- move the check for need to garbage collect into the allocation
code, so only a single flag needs to be checked in funcall.
buffer.c, symbols.c: add debug funs to check on mule optimization info in buffers and
strings.
eval.c, emacs.c, text.c, regex.c, scrollbar-msw.c, search.c: Fix evil crashes due to eistrings not properly reinitialized under
pdump. Redo a bit some of the init routines; convert some
complex_vars_of() into simple vars_of(), because they didn't need
complex processing.
callproc.c, emacs.c, event-stream.c, nt.c, process.c, process.h, sysdep.c, sysdep.h, syssignal.h, syswindows.h, ntproc.c: Delete. Hallelujah, praise the Lord, there is no god
but Allah!!!
fix so that processes can be invoked in bare temacs -- thereby
eliminating any need for callproc.c. (currently only eliminated
under NT.) remove all crufty and unnecessary old process code in
ntproc.c and elsewhere. move non-callproc-specific stuff (mostly
environment) into process.c, so callproc.c can be left out under
NT.
console-tty.c, doc.c, file-coding.c, file-coding.h, lstream.c, lstream.h: fix doc string handling so it works with Japanese, etc docs.
change handling of "character mode" so callers don't have to
manually set it (quite error-prone).
event-msw.c: spacing fixes.
lread.c: eliminate unused crufty vintage-19 "FSF defun hack" code.
lrecord.h: improve pdump description docs.
buffer.c, ntheap.c, unexnt.c, win32.c, emacs.c: Mule-ize some unexec and startup code. It was pseudo-Mule-ized
before by simply always calling the ...A versions of functions,
but that won't cut it -- eventually we want to be able to run
properly even if XEmacs has been installed in a Japanese
directory. (The current problem is the timing of the loading of
the Unicode tables; this will eventually be fixed.) Go through and
fix various other places where the code was not Mule-clean.
Provide a function mswindows_get_module_file_name() to get our own
name without resort to PATH_MAX and such. Add a big comment in
main() about the problem with Unicode table load timing that I
just alluded to.
emacs.c: When error-checking is enabled (interpreted as "user is developing
XEmacs"), don't ask user to "pause to read messages" when a fatal
error has occurred, because it will wedge if we are in an inner
modal loop (typically when a menu is popped up) and make us unable
to get a useful stack trace in the debugger.
text.c: Correct update_entirely_ascii_p_flag to actually work.
lisp.h, symsinit.h: declarations for above changes.
author | ben |
---|---|
date | Sun, 14 Apr 2002 12:43:31 +0000 |
parents | 023b83f4e54b |
children | 13e47461d509 |
rev | line source |
---|---|
0 | 1 /* |
613 | 2 * TCP/IP stream emulation for XEmacs. |
0 | 3 * Copyright (C) 1988, 1989, 1992, 1993 Free Software Foundation, Inc. |
4 | |
5 * Author: Masanobu Umeda | |
6 * Maintainer: umerin@mse.kyutech.ac.jp | |
7 | |
613 | 8 This file is part of XEmacs. |
0 | 9 |
613 | 10 XEmacs is free software; you can redistribute it and/or modify |
0 | 11 it under the terms of the GNU General Public License as published by |
12 the Free Software Foundation; either version 2, or (at your option) | |
13 any later version. | |
14 | |
613 | 15 XEmacs is distributed in the hope that it will be useful, |
0 | 16 but WITHOUT ANY WARRANTY; without even the implied warranty of |
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 GNU General Public License for more details. | |
19 | |
20 You should have received a copy of the GNU General Public License | |
613 | 21 along with XEmacs; see the file COPYING. If not, write to |
0 | 22 the Free the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
23 Boston, MA 02111-1307, USA. | |
24 | |
25 * | |
26 * Yasunari, Itoh at PFU limited contributed for Fujitsu UTS and SX/A. | |
27 * | |
28 * Thu Apr 6 13:47:37 JST 1989 | |
29 * USG fixes by Sakaeda <saka@mickey.trad.pf.fujitsu.junet> | |
30 * | |
31 * For Fujitsu UTS compile with: | |
32 * cc -O -o tcp tcp.c -DFUJITSU_UTS -lu -lsocket | |
33 */ | |
34 | |
35 #include <stdio.h> | |
36 #include <fcntl.h> | |
37 #include <ctype.h> | |
38 #include <sys/types.h> | |
39 | |
40 #ifdef FUJITSU_UTS | |
41 #define USG | |
42 #include <sys/ucbtypes.h> | |
43 #include <sys/tisp/socket.h> | |
44 #include <netdb.h> | |
45 #include <sys/tisp/in.h> | |
46 #else | |
47 #include <sys/socket.h> | |
48 #include <netdb.h> | |
49 #include <netinet/in.h> | |
50 #endif | |
51 | |
52 #ifdef USG | |
53 #include <sys/stat.h> | |
54 #include <signal.h> | |
55 #endif | |
56 | |
57 #ifdef USG | |
58 int selectable = 1; | |
59 | |
60 sigout () | |
61 { | |
62 fcntl (fileno (stdin), F_SETFL, 0); | |
63 exit (-1); | |
64 } | |
65 #endif | |
66 | |
67 main (argc, argv) | |
68 int argc; | |
69 char *argv[]; | |
70 { | |
71 struct hostent *host; | |
72 struct sockaddr_in sockin, sockme; | |
73 struct servent *serv; | |
74 char *hostname = NULL; | |
75 char *service = "nntp"; | |
76 int port; | |
77 int readfds; | |
78 int writefds; | |
79 int server; /* NNTP Server */ | |
80 int emacsIn = fileno (stdin); /* Emacs intput */ | |
81 int emacsOut = fileno (stdout); /* Emacs output */ | |
82 char buffer[1024]; | |
83 int nbuffer; /* Number of bytes in buffer */ | |
84 int wret; | |
85 char *retry; /* retry bufferp */ | |
86 int false = 0; /* FALSE flag for setsockopt () */ | |
87 | |
88 if (argc < 2) | |
89 { | |
90 fprintf (stderr, "Usage: %s HOST [SERVICE]\n", argv[0]); | |
91 exit (1); | |
92 } | |
93 if (argc >= 2) | |
94 hostname = argv[1]; | |
95 if (argc >= 3) | |
96 service = argv[2]; | |
97 | |
98 if ((host = gethostbyname (hostname)) == NULL) | |
99 { | |
100 perror ("gethostbyname"); | |
101 exit (1); | |
102 } | |
103 if (isdigit (service[0])) | |
104 port = atoi (service); | |
105 else | |
106 { | |
107 serv = getservbyname (service, "tcp"); | |
108 if (serv == NULL) | |
109 { | |
110 perror ("getservbyname"); | |
111 exit (1); | |
112 } | |
113 port = serv->s_port; | |
114 } | |
115 | |
116 memset (&sockin, 0, sizeof (sockin)); | |
117 sockin.sin_family = host->h_addrtype; | |
118 memcpy (&sockin.sin_addr, host->h_addr, host->h_length); | |
119 sockin.sin_port = port; | |
120 if ((server = socket (AF_INET, SOCK_STREAM, 0)) < 0) | |
121 { | |
122 perror ("socket"); | |
123 exit (1); | |
124 } | |
125 if (setsockopt (server, SOL_SOCKET, SO_REUSEADDR, &false, sizeof (false))) | |
126 { | |
127 perror ("setsockopt"); | |
128 exit (1); | |
129 } | |
130 memset (&sockme, 0, sizeof (sockme)); | |
131 sockme.sin_family = sockin.sin_family; | |
132 sockme.sin_addr.s_addr = INADDR_ANY; | |
133 if (bind (server, &sockme, sizeof (sockme)) < 0) | |
134 { | |
135 perror ("bind"); | |
136 exit (1); | |
137 } | |
138 if (connect (server, &sockin, sizeof (sockin)) < 0) | |
139 { | |
140 perror ("connect"); | |
141 close (server); | |
142 exit (1); | |
143 } | |
144 | |
145 #ifdef O_NDELAY | |
146 fcntl (server, F_SETFL, O_NDELAY); | |
147 | |
148 #ifdef USG | |
149 /* USG pipe cannot not select emacsIn */ | |
150 { | |
151 struct stat statbuf; | |
152 fstat (emacsIn, &statbuf); | |
153 if (statbuf.st_mode & 010000) | |
154 selectable = 0; | |
155 if (!selectable) | |
156 { | |
157 signal (SIGINT, sigout); | |
158 fcntl (emacsIn, F_SETFL, O_NDELAY); | |
159 } | |
160 } | |
161 #endif | |
162 #endif | |
163 | |
164 /* Connection established. */ | |
165 while (1) | |
166 { | |
167 readfds = (1 << server) | (1 << emacsIn); | |
168 if (select (32, &readfds, NULL, NULL, (struct timeval *)NULL) == -1) | |
169 { | |
170 perror ("select"); | |
171 exit (1); | |
172 } | |
173 if (readfds & (1 << emacsIn)) | |
174 { | |
175 /* From Emacs */ | |
176 nbuffer = read (emacsIn, buffer, sizeof buffer -1); | |
177 | |
178 #ifdef USG | |
179 if (selectable && nbuffer == 0) | |
180 { | |
181 goto finish; | |
182 } | |
183 else if (!(readfds & (1 << server)) && nbuffer == 0) | |
184 { | |
185 sleep (1); | |
186 } | |
187 else | |
188 #else | |
189 if (nbuffer == 0) | |
190 goto finish; | |
191 #endif | |
192 for (retry = buffer; nbuffer > 0; nbuffer -= wret, retry += wret) | |
193 { | |
194 writefds = 1 << server; | |
195 if (select (server+1, NULL, &writefds, NULL, (struct timeval*)NULL) == -1) | |
196 { | |
197 perror ("select"); | |
198 exit (1); | |
199 } | |
200 wret = write (server, retry, nbuffer); | |
201 if (wret < 0) goto finish; | |
202 } | |
203 } | |
204 if (readfds & (1 << server)) | |
205 { | |
206 /* From NNTP server */ | |
207 nbuffer = read (server, buffer, sizeof buffer -1); | |
208 if (nbuffer == 0) | |
209 goto finish; | |
210 for (retry = buffer; nbuffer > 0; nbuffer -= wret, retry += wret) | |
211 { | |
212 writefds = 1 << emacsOut; | |
213 #ifdef USG | |
214 if (selectable) | |
215 #endif | |
216 if (select (emacsOut+1, NULL, &writefds, NULL, (struct timeval*)NULL) == -1) | |
217 { | |
218 perror ("select"); | |
219 exit (1); | |
220 } | |
221 wret = write (emacsOut, retry, nbuffer); | |
222 if (wret < 0) goto finish; | |
223 } | |
224 } | |
225 } | |
226 | |
227 /* End of communication. */ | |
228 finish: | |
229 close (server); | |
230 #ifdef USG | |
231 if (!selectable) fcntl (emacsIn, F_SETFL, 0); | |
232 #endif | |
233 close (emacsIn); | |
234 close (emacsOut); | |
235 exit (0); | |
236 } |