Commit | Line | Data |
---|---|---|
efb859b4 | 1 | /* Client process that communicates with GNU Emacs acting as server. |
92b47a4a | 2 | Copyright (C) 1986, 1987, 1994, 1999, 2000, 2001, 2002, 2003, 2004, |
4e6835db | 3 | 2005, 2006, 2007 Free Software Foundation, Inc. |
46cec291 RS |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
4a9f99bd | 9 | the Free Software Foundation; either version 3, or (at your option) |
46cec291 RS |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
364c38d3 LK |
19 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
20 | Boston, MA 02110-1301, USA. */ | |
46cec291 RS |
21 | |
22 | ||
23 | #define NO_SHORTNAMES | |
e69233c2 PJ |
24 | |
25 | #ifdef HAVE_CONFIG_H | |
2f8fe2f4 | 26 | #include <config.h> |
e69233c2 PJ |
27 | #endif |
28 | ||
aa0b6932 | 29 | #ifdef WINDOWSNT |
aa0b6932 | 30 | |
bc28de71 JB |
31 | /* config.h defines these, which disables sockets altogether! */ |
32 | # undef _WINSOCKAPI_ | |
33 | # undef _WINSOCK_H | |
34 | ||
411b80a5 JB |
35 | # include <malloc.h> |
36 | # include <stdlib.h> | |
42073bfb | 37 | # include <windows.h> |
dbf60b07 | 38 | # include <commctrl.h> |
411b80a5 | 39 | |
411b80a5 JB |
40 | # define NO_SOCKETS_IN_FILE_SYSTEM |
41 | ||
aa0b6932 JB |
42 | # define HSOCKET SOCKET |
43 | # define CLOSE_SOCKET closesocket | |
aa0b6932 | 44 | # define INITIALIZE() (initialize_sockets ()) |
411b80a5 JB |
45 | |
46 | #else /* !WINDOWSNT */ | |
47 | ||
ed4a3730 JB |
48 | # include <sys/types.h> |
49 | ||
1e7823d0 JB |
50 | # ifdef HAVE_INET_SOCKETS |
51 | # include <netinet/in.h> | |
52 | # endif | |
411b80a5 | 53 | |
e35fc962 | 54 | # define INVALID_SOCKET -1 |
aa0b6932 JB |
55 | # define HSOCKET int |
56 | # define CLOSE_SOCKET close | |
aa0b6932 | 57 | # define INITIALIZE() |
411b80a5 JB |
58 | |
59 | #endif /* !WINDOWSNT */ | |
aa0b6932 | 60 | |
4e23f2ba | 61 | #undef signal |
46cec291 | 62 | |
42073bfb | 63 | #include <stdarg.h> |
e69233c2 | 64 | #include <ctype.h> |
8f9aaa0a | 65 | #include <stdio.h> |
aa0b6932 | 66 | #include "getopt.h" |
79f13bba DL |
67 | #ifdef HAVE_UNISTD_H |
68 | #include <unistd.h> | |
69 | #endif | |
8f9aaa0a | 70 | |
9f637eea GM |
71 | #ifdef VMS |
72 | # include "vms-pwd.h" | |
aa0b6932 JB |
73 | #else /* not VMS */ |
74 | #ifdef WINDOWSNT | |
75 | # include <io.h> | |
76 | #else /* not WINDOWSNT */ | |
9f637eea | 77 | # include <pwd.h> |
aa0b6932 | 78 | #endif /* not WINDOWSNT */ |
9f637eea GM |
79 | #endif /* not VMS */ |
80 | ||
8f9aaa0a | 81 | char *getenv (), *getwd (); |
5b9562c3 | 82 | char *(getcwd) (); |
8f9aaa0a | 83 | |
70cd9104 JB |
84 | #ifdef WINDOWSNT |
85 | char *w32_getenv (); | |
86 | #define egetenv(VAR) w32_getenv(VAR) | |
87 | #else | |
88 | #define egetenv(VAR) getenv(VAR) | |
89 | #endif | |
90 | ||
8f9aaa0a RS |
91 | #ifndef VERSION |
92 | #define VERSION "unspecified" | |
93 | #endif | |
94 | \f | |
aa0b6932 JB |
95 | #define SEND_STRING(data) (send_to_emacs (s, (data))) |
96 | #define SEND_QUOTED(data) (quote_file_name (s, (data))) | |
97 | ||
98 | #ifndef EXIT_SUCCESS | |
99 | #define EXIT_SUCCESS 0 | |
100 | #endif | |
101 | ||
102 | #ifndef EXIT_FAILURE | |
103 | #define EXIT_FAILURE 1 | |
104 | #endif | |
105 | ||
106 | #ifndef FALSE | |
107 | #define FALSE 0 | |
108 | #endif | |
109 | ||
110 | #ifndef TRUE | |
111 | #define TRUE 1 | |
112 | #endif | |
113 | ||
114 | #ifndef NO_RETURN | |
115 | #define NO_RETURN | |
116 | #endif | |
117 | \f | |
8f9aaa0a RS |
118 | /* Name used to invoke this program. */ |
119 | char *progname; | |
120 | ||
749ae770 | 121 | /* Nonzero means don't wait for a response from Emacs. --no-wait. */ |
8f9aaa0a RS |
122 | int nowait = 0; |
123 | ||
30be2360 SM |
124 | /* Nonzero means args are expressions to be evaluated. --eval. */ |
125 | int eval = 0; | |
126 | ||
127 | /* The display on which Emacs should work. --display. */ | |
128 | char *display = NULL; | |
129 | ||
130 | /* If non-NULL, the name of an editor to fallback to if the server | |
131 | is not running. --alternate-editor. */ | |
b03d27bd | 132 | const char *alternate_editor = NULL; |
30be2360 | 133 | |
3db926be | 134 | /* If non-NULL, the filename of the UNIX socket. */ |
254107e4 RS |
135 | char *socket_name = NULL; |
136 | ||
aa0b6932 JB |
137 | /* If non-NULL, the filename of the authentication file. */ |
138 | char *server_file = NULL; | |
139 | ||
c66648e0 JB |
140 | /* PID of the Emacs server process. */ |
141 | int emacs_pid = 0; | |
142 | ||
2381d38d | 143 | void print_help_and_exit () NO_RETURN; |
7f3bff3e | 144 | |
8f9aaa0a RS |
145 | struct option longopts[] = |
146 | { | |
749ae770 | 147 | { "no-wait", no_argument, NULL, 'n' }, |
30be2360 | 148 | { "eval", no_argument, NULL, 'e' }, |
8f9aaa0a RS |
149 | { "help", no_argument, NULL, 'H' }, |
150 | { "version", no_argument, NULL, 'V' }, | |
3cf8c6aa | 151 | { "alternate-editor", required_argument, NULL, 'a' }, |
b03d27bd | 152 | #ifndef NO_SOCKETS_IN_FILE_SYSTEM |
254107e4 | 153 | { "socket-name", required_argument, NULL, 's' }, |
b03d27bd | 154 | #endif |
aa0b6932 | 155 | { "server-file", required_argument, NULL, 'f' }, |
30be2360 SM |
156 | { "display", required_argument, NULL, 'd' }, |
157 | { 0, 0, 0, 0 } | |
8f9aaa0a RS |
158 | }; |
159 | ||
70cd9104 JB |
160 | \f |
161 | /* Like malloc but get fatal error if memory is exhausted. */ | |
162 | ||
163 | long * | |
164 | xmalloc (size) | |
165 | unsigned int size; | |
166 | { | |
167 | long *result = (long *) malloc (size); | |
168 | if (result == NULL) | |
169 | { | |
170 | perror ("malloc"); | |
171 | exit (EXIT_FAILURE); | |
172 | } | |
173 | return result; | |
174 | } | |
175 | ||
42073bfb JB |
176 | /* Message functions. */ |
177 | ||
178 | #ifdef WINDOWSNT | |
70cd9104 JB |
179 | |
180 | #define REG_ROOT "SOFTWARE\\GNU\\Emacs" | |
181 | ||
182 | /* Retrieve an environment variable from the Emacs subkeys of the registry. | |
183 | Return NULL if the variable was not found, or it was empty. | |
184 | This code is based on w32_get_resource (w32.c). */ | |
185 | char * | |
186 | w32_get_resource (predefined, key, type) | |
187 | HKEY predefined; | |
188 | char *key; | |
189 | LPDWORD type; | |
190 | { | |
191 | HKEY hrootkey = NULL; | |
192 | char *result = NULL; | |
193 | DWORD cbData; | |
194 | ||
195 | if (RegOpenKeyEx (predefined, REG_ROOT, 0, KEY_READ, &hrootkey) == ERROR_SUCCESS) | |
196 | { | |
197 | if (RegQueryValueEx (hrootkey, key, NULL, NULL, NULL, &cbData) == ERROR_SUCCESS) | |
198 | { | |
199 | result = (char *) xmalloc (cbData); | |
200 | ||
201 | if ((RegQueryValueEx (hrootkey, key, NULL, type, result, &cbData) != ERROR_SUCCESS) || | |
202 | (*result == 0)) | |
203 | { | |
204 | free (result); | |
205 | result = NULL; | |
206 | } | |
207 | } | |
208 | ||
209 | RegCloseKey (hrootkey); | |
210 | } | |
211 | ||
212 | return result; | |
213 | } | |
214 | ||
215 | /* | |
216 | getenv wrapper for Windows | |
217 | ||
218 | This is needed to duplicate Emacs's behavior, which is to look for enviroment | |
219 | variables in the registry if they don't appear in the environment. | |
220 | */ | |
221 | char * | |
222 | w32_getenv (envvar) | |
223 | char *envvar; | |
224 | { | |
225 | char *value; | |
226 | DWORD dwType; | |
227 | ||
228 | if (value = getenv (envvar)) | |
229 | /* Found in the environment. */ | |
230 | return value; | |
231 | ||
232 | if (! (value = w32_get_resource (HKEY_CURRENT_USER, envvar, &dwType)) && | |
233 | ! (value = w32_get_resource (HKEY_LOCAL_MACHINE, envvar, &dwType))) | |
234 | /* Not found in the registry. */ | |
235 | return NULL; | |
236 | ||
237 | if (dwType == REG_SZ) | |
238 | /* Registry; no need to expand. */ | |
239 | return value; | |
240 | ||
241 | if (dwType == REG_EXPAND_SZ) | |
242 | { | |
243 | DWORD size; | |
244 | ||
245 | if (size = ExpandEnvironmentStrings (value, NULL, 0)) | |
246 | { | |
247 | char *buffer = (char *) xmalloc (size); | |
248 | if (ExpandEnvironmentStrings (value, buffer, size)) | |
249 | { | |
250 | /* Found and expanded. */ | |
251 | free (value); | |
252 | return buffer; | |
253 | } | |
254 | ||
255 | /* Error expanding. */ | |
256 | free (buffer); | |
257 | } | |
258 | } | |
259 | ||
260 | /* Not the right type, or not correctly expanded. */ | |
261 | free (value); | |
262 | return NULL; | |
263 | } | |
264 | ||
42073bfb | 265 | int |
f0384499 | 266 | w32_window_app () |
42073bfb JB |
267 | { |
268 | static int window_app = -1; | |
269 | char szTitle[MAX_PATH]; | |
270 | ||
271 | if (window_app < 0) | |
dbf60b07 JR |
272 | { |
273 | /* Checking for STDOUT does not work; it's a valid handle also in | |
274 | nonconsole apps. Testing for the console title seems to work. */ | |
275 | window_app = (GetConsoleTitleA (szTitle, MAX_PATH) == 0); | |
276 | if (window_app) | |
277 | InitCommonControls(); | |
278 | } | |
42073bfb JB |
279 | |
280 | return window_app; | |
281 | } | |
282 | #endif | |
283 | ||
284 | void | |
285 | message (int is_error, char *message, ...) | |
286 | { | |
c66648e0 | 287 | char msg [2048]; |
42073bfb JB |
288 | va_list args; |
289 | ||
290 | va_start (args, message); | |
42073bfb JB |
291 | vsprintf (msg, message, args); |
292 | va_end (args); | |
293 | ||
294 | #ifdef WINDOWSNT | |
295 | if (w32_window_app ()) | |
296 | { | |
297 | if (is_error) | |
298 | MessageBox (NULL, msg, "Emacsclient ERROR", MB_ICONERROR); | |
299 | else | |
300 | MessageBox (NULL, msg, "Emacsclient", MB_ICONINFORMATION); | |
301 | } | |
302 | else | |
303 | #endif | |
9219db75 JB |
304 | { |
305 | FILE *f = is_error ? stderr : stdout; | |
306 | ||
307 | fputs (msg, f); | |
308 | fflush (f); | |
309 | } | |
42073bfb JB |
310 | } |
311 | ||
8f9aaa0a | 312 | /* Decode the options from argv and argc. |
5212210c | 313 | The global variable `optind' will say how many arguments we used up. */ |
8f9aaa0a | 314 | |
5212210c | 315 | void |
8f9aaa0a RS |
316 | decode_options (argc, argv) |
317 | int argc; | |
318 | char **argv; | |
319 | { | |
70cd9104 | 320 | alternate_editor = egetenv ("ALTERNATE_EDITOR"); |
b6b6d6d2 | 321 | |
8f9aaa0a RS |
322 | while (1) |
323 | { | |
324 | int opt = getopt_long (argc, argv, | |
b03d27bd JB |
325 | #ifndef NO_SOCKETS_IN_FILE_SYSTEM |
326 | "VHnea:s:f:d:", | |
327 | #else | |
328 | "VHnea:f:d:", | |
329 | #endif | |
330 | longopts, 0); | |
8f9aaa0a RS |
331 | |
332 | if (opt == EOF) | |
333 | break; | |
334 | ||
335 | switch (opt) | |
336 | { | |
337 | case 0: | |
338 | /* If getopt returns 0, then it has already processed a | |
339 | long-named option. We should do nothing. */ | |
340 | break; | |
e69233c2 | 341 | |
97e3214d GM |
342 | case 'a': |
343 | alternate_editor = optarg; | |
344 | break; | |
e69233c2 | 345 | |
b03d27bd | 346 | #ifndef NO_SOCKETS_IN_FILE_SYSTEM |
254107e4 RS |
347 | case 's': |
348 | socket_name = optarg; | |
349 | break; | |
b03d27bd | 350 | #endif |
254107e4 | 351 | |
aa0b6932 JB |
352 | case 'f': |
353 | server_file = optarg; | |
354 | break; | |
355 | ||
30be2360 SM |
356 | case 'd': |
357 | display = optarg; | |
358 | break; | |
359 | ||
8f9aaa0a RS |
360 | case 'n': |
361 | nowait = 1; | |
362 | break; | |
363 | ||
30be2360 SM |
364 | case 'e': |
365 | eval = 1; | |
366 | break; | |
367 | ||
8f9aaa0a | 368 | case 'V': |
42073bfb | 369 | message (FALSE, "emacsclient %s\n", VERSION); |
65396510 | 370 | exit (EXIT_SUCCESS); |
8f9aaa0a | 371 | break; |
46cec291 | 372 | |
8f9aaa0a | 373 | case 'H': |
8f9aaa0a | 374 | print_help_and_exit (); |
20c396e8 JB |
375 | break; |
376 | ||
377 | default: | |
42073bfb | 378 | message (TRUE, "Try `%s --help' for more information\n", progname); |
65396510 | 379 | exit (EXIT_FAILURE); |
20c396e8 | 380 | break; |
8f9aaa0a RS |
381 | } |
382 | } | |
8f9aaa0a RS |
383 | } |
384 | ||
7f3bff3e | 385 | void |
8f9aaa0a RS |
386 | print_help_and_exit () |
387 | { | |
42073bfb | 388 | message (FALSE, |
20c396e8 | 389 | "Usage: %s [OPTIONS] FILE...\n\ |
30be2360 SM |
390 | Tell the Emacs server to visit the specified files.\n\ |
391 | Every FILE can be either just a FILENAME or [+LINE[:COLUMN]] FILENAME.\n\ | |
20c396e8 | 392 | \n\ |
30be2360 | 393 | The following OPTIONS are accepted:\n\ |
30aa95ce JB |
394 | \n\ |
395 | -V, --version Just print version info and return\n\ | |
396 | -H, --help Print this usage information message\n\ | |
397 | -e, --eval Evaluate FILE arguments as Lisp expressions\n\ | |
398 | -n, --no-wait Don't wait for the server to return\n\ | |
399 | -d, --display=DISPLAY Visit the file in the given display\n" | |
aa0b6932 JB |
400 | #ifndef NO_SOCKETS_IN_FILE_SYSTEM |
401 | "-s, --socket-name=FILENAME\n\ | |
30aa95ce | 402 | Set filename of the UNIX socket for communication\n" |
aa0b6932 JB |
403 | #endif |
404 | "-f, --server-file=FILENAME\n\ | |
30aa95ce | 405 | Set filename of the TCP authentication file\n\ |
30be2360 | 406 | -a, --alternate-editor=EDITOR\n\ |
30aa95ce | 407 | Editor to fallback to if server is not running\n\ |
20c396e8 | 408 | \n\ |
30be2360 | 409 | Report bugs to bug-gnu-emacs@gnu.org.\n", progname); |
65396510 | 410 | exit (EXIT_SUCCESS); |
8f9aaa0a | 411 | } |
5212210c | 412 | |
aa0b6932 | 413 | \f |
4472aef4 JB |
414 | #ifdef WINDOWSNT |
415 | ||
416 | /* | |
f0384499 | 417 | execvp wrapper for Windows. Quotes arguments with embedded spaces. |
4472aef4 JB |
418 | |
419 | This is necessary due to the broken implementation of exec* routines in | |
420 | the Microsoft libraries: they concatenate the arguments together without | |
421 | quoting special characters, and pass the result to CreateProcess, with | |
422 | predictably bad results. By contrast, Posix execvp passes the arguments | |
f0384499 | 423 | directly into the argv array of the child process. |
4472aef4 JB |
424 | */ |
425 | int | |
426 | w32_execvp (path, argv) | |
427 | char *path; | |
428 | char **argv; | |
429 | { | |
430 | int i; | |
431 | ||
0d3d6719 | 432 | /* Required to allow a .BAT script as alternate editor. */ |
4472aef4 JB |
433 | argv[0] = (char *) alternate_editor; |
434 | ||
435 | for (i = 0; argv[i]; i++) | |
436 | if (strchr (argv[i], ' ')) | |
437 | { | |
438 | char *quoted = alloca (strlen (argv[i]) + 3); | |
439 | sprintf (quoted, "\"%s\"", argv[i]); | |
440 | argv[i] = quoted; | |
441 | } | |
442 | ||
443 | return execvp (path, argv); | |
444 | } | |
445 | ||
446 | #undef execvp | |
447 | #define execvp w32_execvp | |
448 | ||
449 | #endif /* WINDOWSNT */ | |
450 | ||
aa0b6932 JB |
451 | /* |
452 | Try to run a different command, or --if no alternate editor is | |
453 | defined-- exit with an errorcode. | |
454 | */ | |
455 | void | |
456 | fail (argc, argv) | |
457 | int argc; | |
458 | char **argv; | |
459 | { | |
460 | if (alternate_editor) | |
461 | { | |
462 | int i = optind - 1; | |
4472aef4 | 463 | |
aa0b6932 | 464 | execvp (alternate_editor, argv + i); |
42073bfb | 465 | message (TRUE, "%s: error executing alternate editor \"%s\"\n", |
aa0b6932 JB |
466 | progname, alternate_editor); |
467 | } | |
aa0b6932 JB |
468 | exit (EXIT_FAILURE); |
469 | } | |
470 | ||
471 | \f | |
1e7823d0 | 472 | #if !defined (HAVE_SOCKETS) || !defined (HAVE_INET_SOCKETS) |
aa0b6932 JB |
473 | |
474 | int | |
475 | main (argc, argv) | |
476 | int argc; | |
477 | char **argv; | |
478 | { | |
42073bfb | 479 | message (TRUE, "%s: Sorry, the Emacs server is supported only\non systems with Berkely sockets.\n", |
aa0b6932 | 480 | argv[0]); |
aa0b6932 JB |
481 | |
482 | fail (argc, argv); | |
483 | } | |
484 | ||
1e7823d0 | 485 | #else /* HAVE_SOCKETS && HAVE_INET_SOCKETS */ |
aa0b6932 JB |
486 | |
487 | #ifdef WINDOWSNT | |
488 | # include <winsock2.h> | |
489 | #else | |
490 | # include <sys/types.h> | |
491 | # include <sys/socket.h> | |
492 | # include <sys/un.h> | |
493 | # include <sys/stat.h> | |
494 | # include <errno.h> | |
495 | #endif | |
496 | ||
497 | #define AUTH_KEY_LENGTH 64 | |
498 | #define SEND_BUFFER_SIZE 4096 | |
499 | ||
500 | extern char *strerror (); | |
501 | extern int errno; | |
502 | ||
503 | /* Buffer to accumulate data to send in TCP connections. */ | |
504 | char send_buffer[SEND_BUFFER_SIZE + 1]; | |
505 | int sblen = 0; /* Fill pointer for the send buffer. */ | |
506 | ||
d22b00e5 JR |
507 | /* On Windows, the socket library was historically separate from the standard |
508 | C library, so errors are handled differently. */ | |
509 | void | |
510 | sock_err_message (function_name) | |
511 | char *function_name; | |
512 | { | |
513 | #ifdef WINDOWSNT | |
514 | char* msg = NULL; | |
515 | ||
516 | FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM | |
517 | | FORMAT_MESSAGE_ALLOCATE_BUFFER | |
518 | | FORMAT_MESSAGE_ARGUMENT_ARRAY, | |
519 | NULL, WSAGetLastError (), 0, (LPTSTR)&msg, 0, NULL); | |
520 | ||
521 | message (TRUE, "%s: %s: %s\n", progname, function_name, msg); | |
522 | ||
523 | LocalFree (msg); | |
524 | #else | |
525 | message (TRUE, "%s: %s: %s\n", progname, function_name, strerror (errno)); | |
526 | #endif | |
527 | } | |
528 | ||
529 | ||
aa0b6932 JB |
530 | /* Let's send the data to Emacs when either |
531 | - the data ends in "\n", or | |
532 | - the buffer is full (but this shouldn't happen) | |
533 | Otherwise, we just accumulate it. */ | |
b03d27bd JB |
534 | void |
535 | send_to_emacs (s, data) | |
aa0b6932 JB |
536 | HSOCKET s; |
537 | char *data; | |
538 | { | |
539 | while (data) | |
540 | { | |
541 | int dlen = strlen (data); | |
542 | if (dlen + sblen >= SEND_BUFFER_SIZE) | |
543 | { | |
544 | int part = SEND_BUFFER_SIZE - sblen; | |
545 | strncpy (&send_buffer[sblen], data, part); | |
546 | data += part; | |
547 | sblen = SEND_BUFFER_SIZE; | |
548 | } | |
549 | else if (dlen) | |
550 | { | |
551 | strcpy (&send_buffer[sblen], data); | |
552 | data = NULL; | |
553 | sblen += dlen; | |
554 | } | |
555 | else | |
556 | break; | |
557 | ||
558 | if (sblen == SEND_BUFFER_SIZE | |
559 | || (sblen > 0 && send_buffer[sblen-1] == '\n')) | |
560 | { | |
561 | int sent = send (s, send_buffer, sblen, 0); | |
562 | if (sent != sblen) | |
563 | strcpy (send_buffer, &send_buffer[sent]); | |
564 | sblen -= sent; | |
565 | } | |
566 | } | |
567 | } | |
568 | ||
a4cf2096 RS |
569 | /* In NAME, insert a & before each &, each space, each newline, and |
570 | any initial -. Change spaces to underscores, too, so that the | |
5212210c | 571 | return value never contains a space. */ |
87209357 | 572 | void |
aa0b6932 JB |
573 | quote_file_name (s, name) |
574 | HSOCKET s; | |
5212210c RS |
575 | char *name; |
576 | { | |
70cd9104 | 577 | char *copy = (char *) xmalloc (strlen (name) * 2 + 1); |
5212210c RS |
578 | char *p, *q; |
579 | ||
580 | p = name; | |
581 | q = copy; | |
582 | while (*p) | |
583 | { | |
584 | if (*p == ' ') | |
585 | { | |
f1db6a73 | 586 | *q++ = '&'; |
5212210c RS |
587 | *q++ = '_'; |
588 | p++; | |
589 | } | |
3cf8c6aa SM |
590 | else if (*p == '\n') |
591 | { | |
592 | *q++ = '&'; | |
593 | *q++ = 'n'; | |
594 | p++; | |
595 | } | |
5212210c RS |
596 | else |
597 | { | |
f1db6a73 RS |
598 | if (*p == '&' || (*p == '-' && p == name)) |
599 | *q++ = '&'; | |
5212210c RS |
600 | *q++ = *p++; |
601 | } | |
602 | } | |
f1db6a73 | 603 | *q++ = 0; |
5212210c | 604 | |
aa0b6932 | 605 | SEND_STRING (copy); |
87209357 EZ |
606 | |
607 | free (copy); | |
5212210c | 608 | } |
0c76956f | 609 | |
b03d27bd JB |
610 | int |
611 | file_name_absolute_p (filename) | |
612 | const unsigned char *filename; | |
613 | { | |
614 | /* Sanity check, it shouldn't happen. */ | |
615 | if (! filename) return FALSE; | |
616 | ||
617 | /* /xxx is always an absolute path. */ | |
618 | if (filename[0] == '/') return TRUE; | |
619 | ||
620 | /* Empty filenames (which shouldn't happen) are relative. */ | |
621 | if (filename[0] == '\0') return FALSE; | |
622 | ||
623 | #ifdef WINDOWSNT | |
71b8f735 | 624 | /* X:\xxx is always absolute. */ |
5f7a4874 | 625 | if (isalpha (filename[0]) |
cb0297bb | 626 | && filename[1] == ':' && (filename[2] == '\\' || filename[2] == '/')) |
b03d27bd JB |
627 | return TRUE; |
628 | ||
629 | /* Both \xxx and \\xxx\yyy are absolute. */ | |
630 | if (filename[0] == '\\') return TRUE; | |
71b8f735 JB |
631 | |
632 | /* | |
633 | FIXME: There's a corner case not dealt with, "x:y", where: | |
634 | ||
635 | 1) x is a valid drive designation (usually a letter in the A-Z range) | |
636 | and y is a path, relative to the current directory on drive x. This | |
637 | is absolute, *after* fixing the y part to include the current | |
638 | directory in x. | |
639 | ||
640 | 2) x is a relative file name, and y is an NTFS stream name. This is a | |
641 | correct relative path, but it is very unusual. | |
642 | ||
643 | The trouble is that first case items are also valid examples of the | |
644 | second case, i.e., "c:test" can be understood as drive:path or as | |
645 | file:stream. | |
646 | ||
647 | The "right" fix would involve checking whether | |
648 | - the current drive/partition is NTFS, | |
649 | - x is a valid (and accesible) drive designator, | |
650 | - x:y already exists as a file:stream in the current directory, | |
651 | - y already exists on the current directory of drive x, | |
652 | - the auspices are favorable, | |
653 | and then taking an "informed decision" based on the above. | |
654 | ||
655 | Whatever the result, Emacs currently does a very bad job of dealing | |
656 | with NTFS file:streams: it cannot visit them, and the only way to | |
657 | create one is by setting `buffer-file-name' to point to it (either | |
658 | manually or with emacsclient). So perhaps resorting to 1) and ignoring | |
659 | 2) for now is the right thing to do. | |
660 | ||
661 | Anyway, something to decide After the Release. | |
662 | */ | |
b03d27bd JB |
663 | #endif |
664 | ||
665 | return FALSE; | |
666 | } | |
667 | ||
aa0b6932 | 668 | #ifdef WINDOWSNT |
f0384499 | 669 | /* Wrapper to make WSACleanup a cdecl, as required by atexit. */ |
b03d27bd JB |
670 | void |
671 | __cdecl close_winsock () | |
aa0b6932 JB |
672 | { |
673 | WSACleanup (); | |
674 | } | |
0c76956f | 675 | |
b03d27bd JB |
676 | /* Initialize the WinSock2 library. */ |
677 | void | |
678 | initialize_sockets () | |
0c76956f | 679 | { |
aa0b6932 JB |
680 | WSADATA wsaData; |
681 | ||
aa0b6932 JB |
682 | if (WSAStartup (MAKEWORD (2, 0), &wsaData)) |
683 | { | |
42073bfb | 684 | message (TRUE, "%s: error initializing WinSock2", progname); |
aa0b6932 JB |
685 | exit (EXIT_FAILURE); |
686 | } | |
687 | ||
688 | atexit (close_winsock); | |
0c76956f | 689 | } |
e35fc962 | 690 | #endif /* WINDOWSNT */ |
8f9aaa0a | 691 | \f |
97e3214d | 692 | /* |
aa0b6932 | 693 | * Read the information needed to set up a TCP comm channel with |
434a6c5d | 694 | * the Emacs server: host, port, pid and authentication string. |
0e0dced5 | 695 | */ |
b03d27bd JB |
696 | int |
697 | get_server_config (server, authentication) | |
aa0b6932 JB |
698 | struct sockaddr_in *server; |
699 | char *authentication; | |
97e3214d | 700 | { |
aa0b6932 JB |
701 | char dotted[32]; |
702 | char *port; | |
434a6c5d | 703 | char *pid; |
b03d27bd | 704 | FILE *config = NULL; |
aa0b6932 | 705 | |
b03d27bd JB |
706 | if (file_name_absolute_p (server_file)) |
707 | config = fopen (server_file, "rb"); | |
708 | else | |
97e3214d | 709 | { |
70cd9104 | 710 | char *home = egetenv ("HOME"); |
88b46d84 | 711 | |
aa0b6932 JB |
712 | if (home) |
713 | { | |
714 | char *path = alloca (32 + strlen (home) + strlen (server_file)); | |
715 | sprintf (path, "%s/.emacs.d/server/%s", home, server_file); | |
716 | config = fopen (path, "rb"); | |
717 | } | |
88b46d84 | 718 | #ifdef WINDOWSNT |
70cd9104 | 719 | if (!config && (home = egetenv ("APPDATA"))) |
88b46d84 JB |
720 | { |
721 | char *path = alloca (32 + strlen (home) + strlen (server_file)); | |
722 | sprintf (path, "%s/.emacs.d/server/%s", home, server_file); | |
723 | config = fopen (path, "rb"); | |
724 | } | |
725 | #endif | |
aa0b6932 JB |
726 | } |
727 | ||
728 | if (! config) | |
729 | return FALSE; | |
730 | ||
731 | if (fgets (dotted, sizeof dotted, config) | |
434a6c5d JB |
732 | && (port = strchr (dotted, ':')) |
733 | && (pid = strchr (port, ' '))) | |
aa0b6932 JB |
734 | { |
735 | *port++ = '\0'; | |
434a6c5d | 736 | *pid++ = '\0'; |
97e3214d GM |
737 | } |
738 | else | |
739 | { | |
42073bfb | 740 | message (TRUE, "%s: invalid configuration info", progname); |
65396510 | 741 | exit (EXIT_FAILURE); |
97e3214d | 742 | } |
97e3214d | 743 | |
aa0b6932 JB |
744 | server->sin_family = AF_INET; |
745 | server->sin_addr.s_addr = inet_addr (dotted); | |
746 | server->sin_port = htons (atoi (port)); | |
97e3214d | 747 | |
aa0b6932 JB |
748 | if (! fread (authentication, AUTH_KEY_LENGTH, 1, config)) |
749 | { | |
42073bfb | 750 | message (TRUE, "%s: cannot read authentication info", progname); |
aa0b6932 JB |
751 | exit (EXIT_FAILURE); |
752 | } | |
46cec291 | 753 | |
aa0b6932 | 754 | fclose (config); |
97e3214d | 755 | |
c66648e0 | 756 | emacs_pid = atoi (pid); |
434a6c5d | 757 | |
aa0b6932 | 758 | return TRUE; |
46cec291 RS |
759 | } |
760 | ||
aa0b6932 JB |
761 | HSOCKET |
762 | set_tcp_socket () | |
763 | { | |
764 | HSOCKET s; | |
765 | struct sockaddr_in server; | |
aa0b6932 JB |
766 | struct linger l_arg = {1, 1}; |
767 | char auth_string[AUTH_KEY_LENGTH + 1]; | |
46cec291 | 768 | |
aa0b6932 JB |
769 | if (! get_server_config (&server, auth_string)) |
770 | return INVALID_SOCKET; | |
771 | ||
b03d27bd | 772 | if (server.sin_addr.s_addr != inet_addr ("127.0.0.1")) |
9219db75 | 773 | message (FALSE, "%s: connected to remote socket at %s\n", |
b03d27bd JB |
774 | progname, inet_ntoa (server.sin_addr)); |
775 | ||
aa0b6932 JB |
776 | /* |
777 | * Open up an AF_INET socket | |
778 | */ | |
779 | if ((s = socket (AF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0) | |
780 | { | |
d22b00e5 | 781 | sock_err_message ("socket"); |
aa0b6932 JB |
782 | return INVALID_SOCKET; |
783 | } | |
784 | ||
785 | /* | |
786 | * Set up the socket | |
787 | */ | |
788 | if (connect (s, (struct sockaddr *) &server, sizeof server) < 0) | |
789 | { | |
d22b00e5 | 790 | sock_err_message ("connect"); |
aa0b6932 JB |
791 | return INVALID_SOCKET; |
792 | } | |
793 | ||
aa0b6932 JB |
794 | setsockopt (s, SOL_SOCKET, SO_LINGER, (char *) &l_arg, sizeof l_arg); |
795 | ||
796 | /* | |
797 | * Send the authentication | |
798 | */ | |
799 | auth_string[AUTH_KEY_LENGTH] = '\0'; | |
800 | ||
801 | SEND_STRING ("-auth "); | |
802 | SEND_STRING (auth_string); | |
803 | SEND_STRING ("\n"); | |
804 | ||
805 | return s; | |
806 | } | |
807 | ||
808 | #if !defined (NO_SOCKETS_IN_FILE_SYSTEM) | |
46cec291 | 809 | |
9f637eea GM |
810 | /* Three possibilities: |
811 | 2 - can't be `stat'ed (sets errno) | |
812 | 1 - isn't owned by us | |
813 | 0 - success: none of the above */ | |
814 | ||
815 | static int | |
816 | socket_status (socket_name) | |
817 | char *socket_name; | |
818 | { | |
819 | struct stat statbfr; | |
820 | ||
821 | if (stat (socket_name, &statbfr) == -1) | |
822 | return 2; | |
823 | ||
824 | if (statbfr.st_uid != geteuid ()) | |
825 | return 1; | |
826 | ||
827 | return 0; | |
828 | } | |
829 | ||
aa0b6932 JB |
830 | HSOCKET |
831 | set_local_socket () | |
46cec291 | 832 | { |
aa0b6932 | 833 | HSOCKET s; |
46cec291 | 834 | struct sockaddr_un server; |
46cec291 | 835 | |
e69233c2 | 836 | /* |
46cec291 RS |
837 | * Open up an AF_UNIX socket in this person's home directory |
838 | */ | |
839 | ||
840 | if ((s = socket (AF_UNIX, SOCK_STREAM, 0)) < 0) | |
841 | { | |
42073bfb | 842 | message (TRUE, "%s: socket: %s\n", progname, strerror (errno)); |
aa0b6932 | 843 | return INVALID_SOCKET; |
46cec291 | 844 | } |
e69233c2 | 845 | |
46cec291 | 846 | server.sun_family = AF_UNIX; |
c5fee545 | 847 | |
c5fee545 | 848 | { |
9f637eea | 849 | int sock_status = 0; |
5c9659d3 | 850 | int default_sock = !socket_name; |
152b6e83 | 851 | int saved_errno; |
0734b0d0 SM |
852 | char *server_name = "server"; |
853 | ||
854 | if (socket_name && !index (socket_name, '/') && !index (socket_name, '\\')) | |
855 | { /* socket_name is a file name component. */ | |
856 | server_name = socket_name; | |
857 | socket_name = NULL; | |
858 | default_sock = 1; /* Try both UIDs. */ | |
859 | } | |
efb859b4 | 860 | |
5c9659d3 | 861 | if (default_sock) |
254107e4 | 862 | { |
0734b0d0 SM |
863 | socket_name = alloca (100 + strlen (server_name)); |
864 | sprintf (socket_name, "/tmp/emacs%d/%s", | |
865 | (int) geteuid (), server_name); | |
254107e4 RS |
866 | } |
867 | ||
868 | if (strlen (socket_name) < sizeof (server.sun_path)) | |
869 | strcpy (server.sun_path, socket_name); | |
870 | else | |
5c9659d3 | 871 | { |
42073bfb | 872 | message (TRUE, "%s: socket-name %s too long", |
aa0b6932 | 873 | progname, socket_name); |
65396510 | 874 | exit (EXIT_FAILURE); |
5c9659d3 | 875 | } |
efb859b4 | 876 | |
9f637eea GM |
877 | /* See if the socket exists, and if it's owned by us. */ |
878 | sock_status = socket_status (server.sun_path); | |
152b6e83 | 879 | saved_errno = errno; |
5c9659d3 | 880 | if (sock_status && default_sock) |
efb859b4 | 881 | { |
9f637eea GM |
882 | /* Failing that, see if LOGNAME or USER exist and differ from |
883 | our euid. If so, look for a socket based on the UID | |
884 | associated with the name. This is reminiscent of the logic | |
885 | that init_editfns uses to set the global Vuser_full_name. */ | |
e69233c2 | 886 | |
70cd9104 | 887 | char *user_name = (char *) egetenv ("LOGNAME"); |
293f9f2a | 888 | |
9f637eea | 889 | if (!user_name) |
70cd9104 | 890 | user_name = (char *) egetenv ("USER"); |
e69233c2 | 891 | |
9f637eea GM |
892 | if (user_name) |
893 | { | |
894 | struct passwd *pw = getpwnam (user_name); | |
293f9f2a | 895 | |
9f637eea GM |
896 | if (pw && (pw->pw_uid != geteuid ())) |
897 | { | |
898 | /* We're running under su, apparently. */ | |
0734b0d0 SM |
899 | socket_name = alloca (100 + strlen (server_name)); |
900 | sprintf (socket_name, "/tmp/emacs%d/%s", | |
901 | (int) pw->pw_uid, server_name); | |
5c9659d3 SM |
902 | |
903 | if (strlen (socket_name) < sizeof (server.sun_path)) | |
904 | strcpy (server.sun_path, socket_name); | |
905 | else | |
906 | { | |
42073bfb | 907 | message (TRUE, "%s: socket-name %s too long", |
aa0b6932 | 908 | progname, socket_name); |
65396510 | 909 | exit (EXIT_FAILURE); |
5c9659d3 SM |
910 | } |
911 | ||
9f637eea | 912 | sock_status = socket_status (server.sun_path); |
152b6e83 | 913 | saved_errno = errno; |
9f637eea | 914 | } |
293f9f2a RS |
915 | else |
916 | errno = saved_errno; | |
9f637eea | 917 | } |
efb859b4 | 918 | } |
e69233c2 | 919 | |
aa0b6932 JB |
920 | switch (sock_status) |
921 | { | |
922 | case 1: | |
923 | /* There's a socket, but it isn't owned by us. This is OK if | |
924 | we are root. */ | |
925 | if (0 != geteuid ()) | |
926 | { | |
42073bfb | 927 | message (TRUE, "%s: Invalid socket owner\n", progname); |
aa0b6932 JB |
928 | return INVALID_SOCKET; |
929 | } | |
930 | break; | |
931 | ||
932 | case 2: | |
933 | /* `stat' failed */ | |
934 | if (saved_errno == ENOENT) | |
42073bfb | 935 | message (TRUE, |
aa0b6932 | 936 | "%s: can't find socket; have you started the server?\n\ |
45adde32 | 937 | To start the server in Emacs, type \"M-x server-start\".\n", |
aa0b6932 JB |
938 | progname); |
939 | else | |
42073bfb | 940 | message (TRUE, "%s: can't stat %s: %s\n", |
aa0b6932 | 941 | progname, server.sun_path, strerror (saved_errno)); |
b03d27bd | 942 | return INVALID_SOCKET; |
aa0b6932 | 943 | } |
efb859b4 | 944 | } |
46cec291 | 945 | |
4e23f2ba JB |
946 | if (connect (s, (struct sockaddr *) &server, strlen (server.sun_path) + 2) |
947 | < 0) | |
46cec291 | 948 | { |
42073bfb | 949 | message (TRUE, "%s: connect: %s\n", progname, strerror (errno)); |
aa0b6932 | 950 | return INVALID_SOCKET; |
46cec291 | 951 | } |
23a7488d | 952 | |
aa0b6932 JB |
953 | return s; |
954 | } | |
955 | #endif /* ! NO_SOCKETS_IN_FILE_SYSTEM */ | |
956 | ||
957 | HSOCKET | |
958 | set_socket () | |
959 | { | |
b03d27bd JB |
960 | HSOCKET s; |
961 | ||
962 | INITIALIZE (); | |
963 | ||
aa0b6932 | 964 | #ifndef NO_SOCKETS_IN_FILE_SYSTEM |
b03d27bd JB |
965 | /* Explicit --socket-name argument. */ |
966 | if (socket_name) | |
967 | { | |
968 | s = set_local_socket (); | |
969 | if ((s != INVALID_SOCKET) || alternate_editor) | |
970 | return s; | |
971 | ||
42073bfb | 972 | message (TRUE, "%s: error accessing socket \"%s\"", |
b03d27bd JB |
973 | progname, socket_name); |
974 | exit (EXIT_FAILURE); | |
975 | } | |
976 | #endif | |
977 | ||
978 | /* Explicit --server-file arg or EMACS_SERVER_FILE variable. */ | |
979 | if (!server_file) | |
70cd9104 | 980 | server_file = egetenv ("EMACS_SERVER_FILE"); |
b03d27bd JB |
981 | |
982 | if (server_file) | |
46cec291 | 983 | { |
b03d27bd JB |
984 | s = set_tcp_socket (); |
985 | if ((s != INVALID_SOCKET) || alternate_editor) | |
986 | return s; | |
987 | ||
42073bfb | 988 | message (TRUE, "%s: error accessing server file \"%s\"", |
b03d27bd JB |
989 | progname, server_file); |
990 | exit (EXIT_FAILURE); | |
46cec291 | 991 | } |
b03d27bd JB |
992 | |
993 | #ifndef NO_SOCKETS_IN_FILE_SYSTEM | |
994 | /* Implicit local socket. */ | |
995 | s = set_local_socket (); | |
996 | if (s != INVALID_SOCKET) | |
997 | return s; | |
998 | #endif | |
999 | ||
1000 | /* Implicit server file. */ | |
1001 | server_file = "server"; | |
1002 | s = set_tcp_socket (); | |
1003 | if ((s != INVALID_SOCKET) || alternate_editor) | |
1004 | return s; | |
1005 | ||
1006 | /* No implicit or explicit socket, and no alternate editor. */ | |
42073bfb | 1007 | message (TRUE, "%s: No socket or alternate editor. Please use:\n\n" |
b03d27bd JB |
1008 | #ifndef NO_SOCKETS_IN_FILE_SYSTEM |
1009 | "\t--socket-name\n" | |
aa0b6932 | 1010 | #endif |
b03d27bd JB |
1011 | "\t--server-file (or environment variable EMACS_SERVER_FILE)\n\ |
1012 | \t--alternate-editor (or environment variable ALTERNATE_EDITOR)\n", | |
1013 | progname); | |
1014 | exit (EXIT_FAILURE); | |
aa0b6932 | 1015 | } |
46cec291 | 1016 | |
0e0dced5 JB |
1017 | #ifdef WINDOWSNT |
1018 | FARPROC set_fg; /* Pointer to AllowSetForegroundWindow. */ | |
1019 | FARPROC get_wc; /* Pointer to RealGetWindowClassA. */ | |
1020 | ||
1021 | BOOL CALLBACK | |
1022 | w32_find_emacs_process (hWnd, lParam) | |
1023 | HWND hWnd; | |
1024 | LPARAM lParam; | |
1025 | { | |
1026 | DWORD pid; | |
1027 | char class[6]; | |
1028 | ||
1029 | /* Reject any window not of class "Emacs". */ | |
1030 | if (! get_wc (hWnd, class, sizeof (class)) | |
1031 | || strcmp (class, "Emacs")) | |
1032 | return TRUE; | |
1033 | ||
1034 | /* We only need the process id, not the thread id. */ | |
1035 | (void) GetWindowThreadProcessId (hWnd, &pid); | |
1036 | ||
1037 | /* Not the one we're looking for. */ | |
1038 | if (pid != (DWORD) emacs_pid) return TRUE; | |
1039 | ||
1040 | /* OK, let's raise it. */ | |
1041 | set_fg (emacs_pid); | |
1042 | ||
1043 | /* Stop enumeration. */ | |
1044 | return FALSE; | |
1045 | } | |
1046 | ||
1047 | /* | |
1048 | * Search for a window of class "Emacs" and owned by a process with | |
1049 | * process id = emacs_pid. If found, allow it to grab the focus. | |
1050 | */ | |
1051 | void | |
1052 | w32_give_focus () | |
1053 | { | |
1054 | HMODULE hUser32; | |
1055 | ||
71b8f735 | 1056 | /* It shouldn't happen when dealing with TCP sockets. */ |
0e0dced5 JB |
1057 | if (!emacs_pid) return; |
1058 | ||
1059 | if (!(hUser32 = LoadLibrary ("user32.dll"))) return; | |
1060 | ||
1061 | /* Modern Windows restrict which processes can set the foreground window. | |
1062 | emacsclient can allow Emacs to grab the focus by calling the function | |
1063 | AllowSetForegroundWindow. Unfortunately, older Windows (W95, W98 and | |
1064 | NT) lack this function, so we have to check its availability. */ | |
1065 | if ((set_fg = GetProcAddress (hUser32, "AllowSetForegroundWindow")) | |
1066 | && (get_wc = GetProcAddress (hUser32, "RealGetWindowClassA"))) | |
1067 | EnumWindows (w32_find_emacs_process, (LPARAM) 0); | |
1068 | ||
1069 | FreeLibrary (hUser32); | |
1070 | } | |
1071 | #endif | |
1072 | ||
aa0b6932 JB |
1073 | int |
1074 | main (argc, argv) | |
1075 | int argc; | |
1076 | char **argv; | |
1077 | { | |
1078 | HSOCKET s; | |
1079 | int i, rl, needlf = 0; | |
1080 | char *cwd; | |
1081 | char string[BUFSIZ+1]; | |
1082 | ||
1083 | progname = argv[0]; | |
1084 | ||
1085 | /* Process options. */ | |
1086 | decode_options (argc, argv); | |
1087 | ||
1088 | if ((argc - optind < 1) && !eval) | |
23a7488d | 1089 | { |
42073bfb JB |
1090 | message (TRUE, "%s: file name or argument required\nTry `%s --help' for more information\n", |
1091 | progname, progname); | |
aa0b6932 | 1092 | exit (EXIT_FAILURE); |
23a7488d RS |
1093 | } |
1094 | ||
aa0b6932 JB |
1095 | if ((s = set_socket ()) == INVALID_SOCKET) |
1096 | fail (argc, argv); | |
1097 | ||
38732dba | 1098 | #ifdef HAVE_GETCWD |
ee6a193c | 1099 | cwd = getcwd (string, sizeof string); |
38732dba RS |
1100 | #else |
1101 | cwd = getwd (string); | |
ee6a193c | 1102 | #endif |
46cec291 RS |
1103 | if (cwd == 0) |
1104 | { | |
1105 | /* getwd puts message in STRING if it fails. */ | |
42073bfb | 1106 | message (TRUE, "%s: %s (%s)\n", progname, |
c66648e0 JB |
1107 | #ifdef HAVE_GETCWD |
1108 | "Cannot get current working directory", | |
38732dba | 1109 | #else |
c66648e0 | 1110 | string, |
bd252662 | 1111 | #endif |
c66648e0 | 1112 | strerror (errno)); |
97e3214d | 1113 | fail (argc, argv); |
46cec291 RS |
1114 | } |
1115 | ||
c66648e0 | 1116 | #ifdef WINDOWSNT |
0e0dced5 | 1117 | w32_give_focus (); |
c66648e0 JB |
1118 | #endif |
1119 | ||
5212210c | 1120 | if (nowait) |
aa0b6932 | 1121 | SEND_STRING ("-nowait "); |
292d74a3 | 1122 | |
30be2360 | 1123 | if (eval) |
aa0b6932 | 1124 | SEND_STRING ("-eval "); |
30be2360 SM |
1125 | |
1126 | if (display) | |
87209357 | 1127 | { |
aa0b6932 JB |
1128 | SEND_STRING ("-display "); |
1129 | SEND_QUOTED (display); | |
1130 | SEND_STRING (" "); | |
87209357 | 1131 | } |
30be2360 | 1132 | |
87209357 | 1133 | if ((argc - optind > 0)) |
5212210c | 1134 | { |
87209357 | 1135 | for (i = optind; i < argc; i++) |
46cec291 | 1136 | { |
87209357 EZ |
1137 | if (eval) |
1138 | ; /* Don't prepend any cwd or anything like that. */ | |
1139 | else if (*argv[i] == '+') | |
1140 | { | |
1141 | char *p = argv[i] + 1; | |
1142 | while (isdigit ((unsigned char) *p) || *p == ':') p++; | |
1143 | if (*p != 0) | |
1144 | { | |
aa0b6932 JB |
1145 | SEND_QUOTED (cwd); |
1146 | SEND_STRING ("/"); | |
87209357 EZ |
1147 | } |
1148 | } | |
b03d27bd | 1149 | else if (! file_name_absolute_p (argv[i])) |
87209357 | 1150 | { |
aa0b6932 JB |
1151 | SEND_QUOTED (cwd); |
1152 | SEND_STRING ("/"); | |
87209357 EZ |
1153 | } |
1154 | ||
aa0b6932 JB |
1155 | SEND_QUOTED (argv[i]); |
1156 | SEND_STRING (" "); | |
46cec291 | 1157 | } |
46cec291 | 1158 | } |
87209357 EZ |
1159 | else |
1160 | { | |
aa0b6932 | 1161 | while (fgets (string, BUFSIZ, stdin)) |
87209357 | 1162 | { |
aa0b6932 | 1163 | SEND_QUOTED (string); |
87209357 | 1164 | } |
aa0b6932 | 1165 | SEND_STRING (" "); |
87209357 | 1166 | } |
65396510 | 1167 | |
aa0b6932 | 1168 | SEND_STRING ("\n"); |
46cec291 | 1169 | |
292d74a3 | 1170 | /* Maybe wait for an answer. */ |
aa0b6932 | 1171 | if (!nowait) |
30be2360 | 1172 | { |
aa0b6932 JB |
1173 | if (!eval) |
1174 | { | |
1175 | printf ("Waiting for Emacs..."); | |
1176 | needlf = 2; | |
1177 | } | |
1178 | fflush (stdout); | |
1179 | ||
1180 | /* Now, wait for an answer and print any messages. */ | |
1181 | while ((rl = recv (s, string, BUFSIZ, 0)) > 0) | |
1182 | { | |
1183 | string[rl] = '\0'; | |
1184 | if (needlf == 2) | |
1185 | printf ("\n"); | |
1186 | printf ("%s", string); | |
1187 | needlf = string[0] == '\0' ? needlf : string[strlen (string) - 1] != '\n'; | |
1188 | } | |
1189 | ||
1190 | if (needlf) | |
1191 | printf ("\n"); | |
1192 | fflush (stdout); | |
30be2360 | 1193 | } |
23a7488d | 1194 | |
aa0b6932 | 1195 | CLOSE_SOCKET (s); |
65396510 | 1196 | return EXIT_SUCCESS; |
46cec291 RS |
1197 | } |
1198 | ||
1e7823d0 | 1199 | #endif /* HAVE_SOCKETS && HAVE_INET_SOCKETS */ |
aa0b6932 | 1200 | |
27711600 RM |
1201 | #ifndef HAVE_STRERROR |
1202 | char * | |
1203 | strerror (errnum) | |
1204 | int errnum; | |
1205 | { | |
1206 | extern char *sys_errlist[]; | |
1207 | extern int sys_nerr; | |
1208 | ||
1209 | if (errnum >= 0 && errnum < sys_nerr) | |
1210 | return sys_errlist[errnum]; | |
1211 | return (char *) "Unknown error"; | |
1212 | } | |
1213 | ||
1214 | #endif /* ! HAVE_STRERROR */ | |
ab5796a9 MB |
1215 | |
1216 | /* arch-tag: f39bb9c4-73eb-477e-896d-50832e2ca9a7 | |
1217 | (do not change this comment) */ | |
65396510 TTN |
1218 | |
1219 | /* emacsclient.c ends here */ |