Annotation of src/usr.bin/cvs/server.c, Revision 1.34
1.34 ! xsa 1: /* $OpenBSD: server.c,v 1.33 2006/11/09 10:08:33 xsa Exp $ */
1.1 jfb 2: /*
1.29 joris 3: * Copyright (c) 2006 Joris Vink <joris@openbsd.org>
1.1 jfb 4: *
1.29 joris 5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
1.1 jfb 8: *
1.29 joris 9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 jfb 16: */
17:
1.27 xsa 18: #include "includes.h"
1.1 jfb 19:
20: #include "cvs.h"
21: #include "log.h"
1.29 joris 22: #include "diff.h"
23: #include "remote.h"
24:
25: struct cvs_resp cvs_responses[] = {
26: /* this is what our server uses, the client should support it */
27: { "Valid-requests", 1, cvs_client_validreq, RESP_NEEDED },
28: { "ok", 0, cvs_client_ok, RESP_NEEDED},
29: { "error", 0, cvs_client_error, RESP_NEEDED },
30: { "E", 0, cvs_client_e, RESP_NEEDED },
31: { "M", 0, cvs_client_m, RESP_NEEDED },
32: { "Checked-in", 0, cvs_client_checkedin, RESP_NEEDED },
33: { "Updated", 0, cvs_client_updated, RESP_NEEDED },
34: { "Merged", 0, cvs_client_merged, RESP_NEEDED },
35: { "Removed", 0, cvs_client_removed, RESP_NEEDED },
36: { "Remove-entry", 0, cvs_client_remove_entry, RESP_NEEDED },
37:
38: /* unsupported responses until told otherwise */
39: { "New-entry", 0, NULL, 0 },
40: { "Created", 0, NULL, 0 },
41: { "Update-existing", 0, NULL, 0 },
42: { "Rcs-diff", 0, NULL, 0 },
43: { "Patched", 0, NULL, 0 },
44: { "Mode", 0, NULL, 0 },
45: { "Mod-time", 0, NULL, 0 },
46: { "Checksum", 0, NULL, 0 },
47: { "Copy-file", 0, NULL, 0 },
48: { "Set-static-directory", 0, NULL, 0 },
49: { "Clear-static-directory", 0, NULL, 0 },
50: { "Set-sticky", 0, NULL, 0 },
51: { "Clear-sticky", 0, NULL, 0 },
52: { "Template", 0, NULL, 0 },
53: { "Set-checkin-prog", 0, NULL, 0 },
54: { "Set-update-prog", 0, NULL, 0 },
55: { "Notified", 0, NULL, 0 },
56: { "Module-expansion", 0, NULL, 0 },
57: { "Wrapper-rcsOption", 0, NULL, 0 },
58: { "Mbinary", 0, NULL, 0 },
59: { "F", 0, NULL, 0 },
60: { "MT", 0, NULL, 0 },
61: { "", -1, NULL, 0 }
62: };
1.1 jfb 63:
1.29 joris 64: int cvs_server(int, char **);
65: char *cvs_server_path = NULL;
1.1 jfb 66:
1.29 joris 67: static char *server_currentdir = NULL;
68: static char *server_argv[CVS_CMD_MAXARG];
69: static int server_argc = 1;
1.8 joris 70:
1.17 jfb 71: struct cvs_cmd cvs_cmd_server = {
1.29 joris 72: CVS_OP_SERVER, 0, "server", { "", "" },
73: "server mode",
1.17 jfb 74: NULL,
1.29 joris 75: NULL,
76: NULL,
77: cvs_server
1.17 jfb 78: };
1.1 jfb 79:
1.14 joris 80:
1.1 jfb 81: int
82: cvs_server(int argc, char **argv)
83: {
1.29 joris 84: int l;
85: char *cmd, *data;
86: struct cvs_req *req;
87:
88: server_argv[0] = xstrdup("server");
89:
90: cvs_server_path = xmalloc(MAXPATHLEN);
91: l = snprintf(cvs_server_path, MAXPATHLEN, "%s/cvs-serv%d",
92: cvs_tmpdir, getpid());
93: if (l == -1 || l >= MAXPATHLEN)
94: fatal("cvs_server: overflow in server path");
95:
96: if (mkdir(cvs_server_path, 0700) == -1)
97: fatal("failed to create temporary server directory: %s, %s",
98: cvs_server_path, strerror(errno));
99:
100: if (chdir(cvs_server_path) == -1)
101: fatal("failed to change directory to '%s'", cvs_server_path);
102:
103: for (;;) {
104: cmd = cvs_remote_input();
105:
106: if ((data = strchr(cmd, ' ')) != NULL)
107: (*data++) = '\0';
108:
109: req = cvs_remote_get_request_info(cmd);
110: if (req == NULL)
111: fatal("request '%s' is not supported by our server",
112: cmd);
113:
114: if (req->hdlr == NULL)
115: fatal("opencvs server does not support '%s'", cmd);
116:
117: (*req->hdlr)(data);
118: xfree(cmd);
1.14 joris 119: }
120:
1.29 joris 121: return (0);
122: }
123:
124: void
125: cvs_server_send_response(char *fmt, ...)
126: {
127: va_list ap;
128: char *data, *s;
129: struct cvs_resp *resp;
130:
131: va_start(ap, fmt);
132: vasprintf(&data, fmt, ap);
133: va_end(ap);
134:
135: if ((s = strchr(data, ' ')) != NULL)
136: *s = '\0';
137:
138: resp = cvs_remote_get_response_info(data);
139: if (resp == NULL)
140: fatal("'%s' is an unknown response", data);
141:
142: if (resp->supported != 1)
143: fatal("remote cvs client does not support '%s'", data);
1.14 joris 144:
1.29 joris 145: if (s != NULL)
146: *s = ' ';
1.14 joris 147:
1.30 joris 148: cvs_log(LP_TRACE, "%s", data);
1.29 joris 149: cvs_remote_output(data);
150: xfree(data);
151: }
152:
153: void
154: cvs_server_root(char *data)
155: {
156: fatal("duplicate Root request from client, violates the protocol");
157: }
158:
159: void
160: cvs_server_validresp(char *data)
161: {
162: int i;
163: char *sp, *ep;
164: struct cvs_resp *resp;
165:
166: sp = data;
167: do {
168: if ((ep = strchr(sp, ' ')) != NULL)
169: *ep = '\0';
170:
171: resp = cvs_remote_get_response_info(sp);
172: if (resp != NULL)
173: resp->supported = 1;
174:
175: if (ep != NULL)
176: sp = ep + 1;
177: } while (ep != NULL);
178:
179: for (i = 0; cvs_responses[i].supported != -1; i++) {
180: resp = &cvs_responses[i];
181: if ((resp->flags & RESP_NEEDED) &&
182: resp->supported != 1) {
183: fatal("client does not support required '%s'",
184: resp->name);
1.1 jfb 185: }
1.29 joris 186: }
187: }
1.1 jfb 188:
1.29 joris 189: void
190: cvs_server_validreq(char *data)
191: {
192: BUF *bp;
193: char *d;
194: int i, first;
195:
196: first = 0;
197: bp = cvs_buf_alloc(512, BUF_AUTOEXT);
198: for (i = 0; cvs_requests[i].supported != -1; i++) {
199: if (cvs_requests[i].hdlr == NULL)
1.5 jfb 200: continue;
1.1 jfb 201:
1.29 joris 202: if (first != 0)
203: cvs_buf_append(bp, " ", 1);
204: else
205: first++;
206:
207: cvs_buf_append(bp, cvs_requests[i].name,
208: strlen(cvs_requests[i].name));
209: }
210:
211: cvs_buf_putc(bp, '\0');
212: d = cvs_buf_release(bp);
213:
214: cvs_server_send_response("Valid-requests %s", d);
215: cvs_server_send_response("ok");
216: xfree(d);
217: }
218:
219: void
220: cvs_server_globalopt(char *data)
221: {
222: if (!strcmp(data, "-t"))
223: cvs_trace = 1;
224:
225: if (!strcmp(data, "-n"))
226: cvs_noexec = 1;
227:
228: if (!strcmp(data, "-V"))
229: verbosity = 2;
230: }
1.1 jfb 231:
1.29 joris 232: void
233: cvs_server_directory(char *data)
234: {
235: int l;
236: CVSENTRIES *entlist;
237: char *dir, *repo, *parent, *entry, *dirn;
238:
239: dir = cvs_remote_input();
240: if (strlen(dir) < strlen(current_cvsroot->cr_dir) + 1)
241: fatal("cvs_server_directory: bad Directory request");
242:
243: repo = dir + strlen(current_cvsroot->cr_dir) + 1;
244: cvs_mkpath(repo);
245:
246: if ((dirn = basename(repo)) == NULL)
247: fatal("cvs_server_directory: %s", strerror(errno));
248:
249: if ((parent = dirname(repo)) == NULL)
250: fatal("cvs_server_directory: %s", strerror(errno));
251:
252: if (strcmp(parent, ".")) {
253: entlist = cvs_ent_open(parent);
254: entry = xmalloc(CVS_ENT_MAXLINELEN);
255: l = snprintf(entry, CVS_ENT_MAXLINELEN, "D/%s////", dirn);
256: if (l == -1 || l >= CVS_ENT_MAXLINELEN)
257: fatal("cvs_server_directory: overflow");
258:
259: cvs_ent_add(entlist, entry);
260: cvs_ent_close(entlist, ENT_SYNC);
261: xfree(entry);
1.1 jfb 262: }
263:
1.29 joris 264: if (server_currentdir != NULL)
265: xfree(server_currentdir);
266: server_currentdir = xstrdup(repo);
267:
268: xfree(dir);
269: }
270:
271: void
272: cvs_server_entry(char *data)
273: {
274: CVSENTRIES *entlist;
275:
276: entlist = cvs_ent_open(server_currentdir);
277: cvs_ent_add(entlist, data);
278: cvs_ent_close(entlist, ENT_SYNC);
279: }
280:
281: void
282: cvs_server_modified(char *data)
283: {
284: BUF *bp;
285: int fd, l;
286: size_t flen;
287: mode_t fmode;
288: const char *errstr;
289: char *mode, *len, *fpath;
290:
291: mode = cvs_remote_input();
292: len = cvs_remote_input();
293:
294: cvs_strtomode(mode, &fmode);
295: xfree(mode);
296:
297: flen = strtonum(len, 0, INT_MAX, &errstr);
298: if (errstr != NULL)
299: fatal("cvs_server_modified: %s", errstr);
300: xfree(len);
301:
302: bp = cvs_remote_receive_file(flen);
303:
304: fpath = xmalloc(MAXPATHLEN);
305: l = snprintf(fpath, MAXPATHLEN, "%s/%s", server_currentdir, data);
306: if (l == -1 || l >= MAXPATHLEN)
307: fatal("cvs_server_modified: overflow");
308:
309: if ((fd = open(fpath, O_WRONLY | O_CREAT | O_TRUNC)) == -1)
310: fatal("cvs_server_modified: %s: %s", fpath, strerror(errno));
311:
312: if (cvs_buf_write_fd(bp, fd) == -1)
313: fatal("cvs_server_modified: failed to write file '%s'", fpath);
314:
315: if (fchmod(fd, 0600) == -1)
316: fatal("cvs_server_modified: failed to set file mode");
317:
318: xfree(fpath);
319: (void)close(fd);
320: cvs_buf_free(bp);
321: }
322:
323: void
324: cvs_server_useunchanged(char *data)
325: {
326: }
327:
328: void
329: cvs_server_unchanged(char *data)
330: {
331: int l, fd;
332: char *fpath;
333: CVSENTRIES *entlist;
334: struct cvs_ent *ent;
335: struct timeval tv[2];
336:
337: fpath = xmalloc(MAXPATHLEN);
338: l = snprintf(fpath, MAXPATHLEN, "%s/%s", server_currentdir, data);
339: if (l == -1 || l >= MAXPATHLEN)
340: fatal("cvs_server_unchanged: overflow");
341:
342: if ((fd = open(fpath, O_RDWR | O_CREAT | O_TRUNC)) == -1)
343: fatal("cvs_server_unchanged: %s: %s", fpath, strerror(errno));
344:
345: entlist = cvs_ent_open(server_currentdir);
346: ent = cvs_ent_get(entlist, data);
347: if (ent == NULL)
348: fatal("received Unchanged request for non-existing file");
349: cvs_ent_close(entlist, ENT_NOSYNC);
350:
351: tv[0].tv_sec = cvs_hack_time(ent->ce_mtime, 0);
352: tv[0].tv_usec = 0;
353: tv[1] = tv[0];
354: if (futimes(fd, tv) == -1)
355: fatal("cvs_server_unchanged: failed to set modified time");
356:
357: if (fchmod(fd, 0600) == -1)
358: fatal("cvs_server_unchanged: failed to set mode");
359:
360: cvs_ent_free(ent);
361: xfree(fpath);
362: (void)close(fd);
363: }
364:
365: void
366: cvs_server_questionable(char *data)
367: {
368: }
369:
370: void
371: cvs_server_argument(char *data)
372: {
373:
374: if (server_argc > CVS_CMD_MAXARG)
375: fatal("cvs_server_argument: too many arguments sent");
376:
377: server_argv[server_argc++] = xstrdup(data);
378: }
379:
380: void
1.31 xsa 381: cvs_server_add(char *data)
382: {
383: if (chdir(server_currentdir) == -1)
384: fatal("cvs_server_add: %s", strerror(errno));
385:
386: cvs_cmdop = CVS_OP_ADD;
387: cvs_add(server_argc, server_argv);
388: cvs_server_send_response("ok");
389: }
390:
391: void
1.29 joris 392: cvs_server_commit(char *data)
393: {
394: if (chdir(server_currentdir) == -1)
395: fatal("cvs_server_commit: %s", strerror(errno));
396:
397: cvs_cmdop = CVS_OP_COMMIT;
398: cvs_commit(server_argc, server_argv);
399: cvs_server_send_response("ok");
400: }
401:
402: void
403: cvs_server_diff(char *data)
404: {
405: if (chdir(server_currentdir) == -1)
406: fatal("cvs_server_diff: %s", strerror(errno));
407:
408: cvs_cmdop = CVS_OP_DIFF;
409: cvs_diff(server_argc, server_argv);
1.34 ! xsa 410: cvs_server_send_response("ok");
! 411: }
! 412:
! 413: void
! 414: cvs_server_init(char *data)
! 415: {
! 416: if (chdir(server_currentdir) == -1)
! 417: fatal("cvs_server_init: %s", strerror(errno));
! 418:
! 419: cvs_cmdop = CVS_OP_INIT;
! 420: cvs_init(server_argc, server_argv);
1.31 xsa 421: cvs_server_send_response("ok");
422: }
423:
424: void
425: cvs_server_remove(char *data)
426: {
427: if (chdir(server_currentdir) == -1)
428: fatal("cvs_server_remove: %s", strerror(errno));
429:
430: cvs_cmdop = CVS_OP_REMOVE;
431: cvs_remove(server_argc, server_argv);
1.29 joris 432: cvs_server_send_response("ok");
433: }
434:
435: void
436: cvs_server_status(char *data)
437: {
438: if (chdir(server_currentdir) == -1)
439: fatal("cvs_server_status: %s", strerror(errno));
440:
441: cvs_cmdop = CVS_OP_STATUS;
442: cvs_status(server_argc, server_argv);
443: cvs_server_send_response("ok");
444: }
445:
446: void
447: cvs_server_log(char *data)
448: {
449: if (chdir(server_currentdir) == -1)
450: fatal("cvs_server_log: %s", strerror(errno));
451:
452: cvs_cmdop = CVS_OP_LOG;
1.32 xsa 453: cvs_getlog(server_argc, server_argv);
454: cvs_server_send_response("ok");
455: }
456:
457: void
458: cvs_server_tag(char *data)
459: {
460: if (chdir(server_currentdir) == -1)
461: fatal("cvs_server_tag: %s", strerror(errno));
462:
463: cvs_cmdop = CVS_OP_TAG;
1.33 xsa 464: cvs_tag(server_argc, server_argv);
1.29 joris 465: cvs_server_send_response("ok");
466: }
467:
468: void
469: cvs_server_update(char *data)
470: {
471: if (chdir(server_currentdir) == -1)
472: fatal("cvs_server_update: %s", strerror(errno));
1.14 joris 473:
1.29 joris 474: cvs_cmdop = CVS_OP_UPDATE;
475: cvs_update(server_argc, server_argv);
476: cvs_server_send_response("ok");
1.1 jfb 477: }
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