Commit | Line | Data |
---|---|---|
4a0b54fb MH |
1 | /* Client process that communicates with GNU Emacs acting as server. |
2 | Copyright (C) 1986, 1987 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 1, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | ||
21 | #define NO_SHORTNAMES | |
22 | #include "../src/config.h" | |
23 | #undef read | |
24 | #undef write | |
25 | #undef open | |
26 | #ifdef close | |
27 | #undef close | |
28 | #endif | |
29 | ||
30 | ||
31 | #if !defined(BSD) && !defined(HAVE_SYSVIPC) | |
32 | #include <stdio.h> | |
33 | ||
34 | main (argc, argv) | |
35 | int argc; | |
36 | char **argv; | |
37 | { | |
38 | fprintf (stderr, "%s: Sorry, the Emacs server is supported only\n", | |
39 | argv[0]); | |
40 | fprintf (stderr, "on systems with Berkeley sockets or System V IPC.\n"); | |
41 | exit (1); | |
42 | } | |
43 | ||
44 | #else /* BSD or HAVE_SYSVIPC */ | |
45 | ||
46 | #if defined(BSD) && ! defined (HAVE_SYSVIPC) | |
47 | /* BSD code is very different from SYSV IPC code */ | |
48 | ||
49 | #include <sys/types.h> | |
50 | #include <sys/socket.h> | |
51 | #include <sys/un.h> | |
52 | #include <stdio.h> | |
53 | #include <errno.h> | |
54 | #include <sys/stat.h> | |
55 | ||
3c49e1df | 56 | #ifndef BSD4_4 |
4a0b54fb MH |
57 | extern int sys_nerr; |
58 | extern char *sys_errlist[]; | |
59 | extern int errno; | |
3c49e1df | 60 | #endif |
4a0b54fb MH |
61 | |
62 | main (argc, argv) | |
63 | int argc; | |
64 | char **argv; | |
65 | { | |
66 | int s, i; | |
67 | FILE *out; | |
68 | struct sockaddr_un server; | |
69 | char *homedir, *cwd, *str; | |
70 | char string[BUFSIZ]; | |
71 | struct stat statbfr; | |
72 | ||
73 | char *getenv (), *getwd (); | |
74 | ||
75 | if (argc < 2) | |
76 | { | |
77 | fprintf (stderr, "Usage: %s filename\n", argv[0]); | |
78 | exit (1); | |
79 | } | |
80 | ||
81 | /* | |
82 | * Open up an AF_UNIX socket in this person's home directory | |
83 | */ | |
84 | ||
85 | if ((s = socket (AF_UNIX, SOCK_STREAM, 0)) < 0) | |
86 | { | |
87 | fprintf (stderr, "%s: ", argv[0]); | |
88 | perror ("socket"); | |
89 | exit (1); | |
90 | } | |
91 | server.sun_family = AF_UNIX; | |
92 | #ifndef SERVER_HOME_DIR | |
93 | (void) sprintf (server.sun_path, "/tmp/esrv%d", geteuid()); | |
94 | if (stat (server.sun_path, &statbfr) == -1) | |
95 | { | |
96 | perror ("stat"); | |
97 | exit (1); | |
98 | } | |
99 | if (statbfr.st_uid != geteuid()) | |
100 | { | |
101 | fprintf (stderr, "Illegal socket owner\n"); | |
102 | exit (1); | |
103 | } | |
104 | #else | |
105 | if ((homedir = getenv ("HOME")) == NULL) | |
106 | { | |
107 | fprintf (stderr, "%s: No home directory\n", argv[0]); | |
108 | exit (1); | |
109 | } | |
110 | strcpy (server.sun_path, homedir); | |
111 | strcat (server.sun_path, "/.emacs_server"); | |
112 | #endif | |
113 | ||
114 | if (connect (s, &server, strlen (server.sun_path) + 2) < 0) | |
115 | { | |
116 | fprintf (stderr, "%s: ", argv[0]); | |
117 | perror ("connect"); | |
118 | exit (1); | |
119 | } | |
120 | if ((out = fdopen (s, "r+")) == NULL) | |
121 | { | |
122 | fprintf (stderr, "%s: ", argv[0]); | |
123 | perror ("fdopen"); | |
124 | exit (1); | |
125 | } | |
126 | ||
127 | cwd = getwd (string); | |
128 | if (cwd == 0) | |
129 | { | |
130 | /* getwd puts message in STRING if it fails. */ | |
131 | fprintf (stderr, "%s: %s (%s)\n", argv[0], string, | |
132 | (errno < sys_nerr) ? sys_errlist[errno] : "unknown error"); | |
133 | exit (1); | |
134 | } | |
135 | ||
136 | for (i = 1; i < argc; i++) | |
137 | { | |
138 | if (*argv[i] == '+') | |
139 | { | |
140 | char *p = argv[i] + 1; | |
141 | while (*p >= '0' && *p <= '9') p++; | |
142 | if (*p != 0) | |
143 | fprintf (out, "%s/", cwd); | |
144 | } | |
145 | else if (*argv[i] != '/') | |
146 | fprintf (out, "%s/", cwd); | |
147 | fprintf (out, "%s ", argv[i]); | |
148 | } | |
149 | fprintf (out, "\n"); | |
150 | fflush (out); | |
151 | ||
152 | printf ("Waiting for Emacs..."); | |
153 | fflush (stdout); | |
154 | ||
155 | rewind (out); /* re-read the output */ | |
156 | str = fgets (string, BUFSIZ, out); | |
157 | ||
158 | /* Now, wait for an answer and print any messages. */ | |
159 | ||
160 | while (str = fgets (string, BUFSIZ, out)) | |
161 | printf ("%s", str); | |
162 | ||
163 | exit (0); | |
164 | } | |
165 | ||
166 | #else /* This is the SYSV IPC section */ | |
167 | ||
168 | #include <sys/types.h> | |
169 | #include <sys/ipc.h> | |
170 | #include <sys/msg.h> | |
171 | #include <stdio.h> | |
172 | ||
173 | main (argc, argv) | |
174 | int argc; | |
175 | char **argv; | |
176 | { | |
177 | int s; | |
178 | key_t key; | |
179 | struct msgbuf * msgp = | |
180 | (struct msgbuf *) malloc (sizeof *msgp + BUFSIZ); | |
181 | struct msqid_ds * msg_st; | |
182 | char *homedir, buf[BUFSIZ]; | |
183 | char gwdirb[BUFSIZ]; | |
184 | char *cwd; | |
185 | char *temp; | |
186 | char *getwd (), *getcwd (), *getenv (); | |
187 | ||
188 | if (argc < 2) | |
189 | { | |
190 | fprintf (stderr, "Usage: %s filename\n", argv[0]); | |
191 | exit (1); | |
192 | } | |
193 | ||
194 | /* | |
195 | * Create a message queue using ~/.emacs_server as the path for ftok | |
196 | */ | |
197 | if ((homedir = getenv ("HOME")) == NULL) | |
198 | { | |
199 | fprintf (stderr, "%s: No home directory\n", argv[0]); | |
200 | exit (1); | |
201 | } | |
202 | strcpy (buf, homedir); | |
203 | strcat (buf, "/.emacs_server"); | |
204 | creat (buf, 0600); | |
205 | key = ftok (buf, 1); /* unlikely to be anyone else using it */ | |
206 | s = msgget (key, 0600); | |
207 | if (s == -1) | |
208 | { | |
209 | fprintf (stderr, "%s: ", argv[0]); | |
210 | perror ("msgget"); | |
211 | exit (1); | |
212 | } | |
213 | ||
214 | /* Determine working dir, so we can prefix it to all the arguments. */ | |
215 | #ifdef BSD | |
216 | temp = getwd (gwdirb); | |
217 | #else | |
218 | temp = getcwd (gwdirb, sizeof gwdirb); | |
219 | #endif | |
220 | ||
221 | cwd = gwdirb; | |
222 | if (temp != 0) | |
223 | { | |
224 | /* On some systems, cwd can look like `@machine/...'; | |
225 | ignore everything before the first slash in such a case. */ | |
226 | while (*cwd && *cwd != '/') | |
227 | cwd++; | |
228 | strcat (cwd, "/"); | |
229 | } | |
230 | else | |
231 | { | |
232 | fprintf (stderr, cwd); | |
233 | exit (1); | |
234 | } | |
235 | ||
236 | msgp->mtext[0] = 0; | |
237 | argc--; argv++; | |
238 | while (argc) | |
239 | { | |
240 | if (*argv[0] == '+') | |
241 | { | |
242 | char *p = argv[0] + 1; | |
243 | while (*p >= '0' && *p <= '9') p++; | |
244 | if (*p != 0) | |
245 | strcat (msgp->mtext, cwd); | |
246 | } | |
247 | else if (*argv[0] != '/') | |
248 | strcat (msgp->mtext, cwd); | |
249 | ||
250 | strcat (msgp->mtext, argv[0]); | |
251 | strcat (msgp->mtext, " "); | |
252 | argv++; argc--; | |
253 | } | |
254 | strcat (msgp->mtext, "\n"); | |
255 | msgp->mtype = 1; | |
256 | if (msgsnd (s, msgp, strlen (msgp->mtext)+1, 0) < 0) | |
257 | { | |
258 | fprintf (stderr, "%s: ", argv[0]); | |
259 | perror ("msgsnd"); | |
260 | exit (1); | |
261 | } | |
262 | /* | |
263 | * Now, wait for an answer | |
264 | */ | |
265 | printf ("Waiting for Emacs..."); | |
266 | fflush (stdout); | |
267 | ||
268 | msgrcv (s, msgp, BUFSIZ, getpid (), 0); /* wait for anything back */ | |
269 | strcpy (buf, msgp->mtext); | |
270 | ||
271 | printf ("\n%s\n", buf); | |
272 | exit (0); | |
273 | } | |
274 | ||
275 | #endif /* HAVE_SYSVIPC */ | |
276 | ||
277 | #endif /* BSD or HAVE_SYSVIPC */ |