Annotation of src/usr.bin/cvs/proto.c, Revision 1.17
1.1 jfb 1: /* $OpenBSD$ */
2: /*
3: * Copyright (c) 2004 Jean-Francois Brousseau <jfb@openbsd.org>
4: * All rights reserved.
5: *
6: * Redistribution and use in source and binary forms, with or without
7: * modification, are permitted provided that the following conditions
8: * are met:
9: *
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. The name of the author may not be used to endorse or promote products
13: * derived from this software without specific prior written permission.
14: *
15: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
16: * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
17: * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
18: * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19: * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20: * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
21: * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
22: * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
23: * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
24: * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25: */
26: /*
27: * CVS client/server protocol
28: * ==========================
29: *
30: * The following code implements the CVS client/server protocol, which is
31: * documented at the following URL:
32: * http://www.loria.fr/~molli/cvs/doc/cvsclient_toc.html
33: *
34: * The protocol is split up into two parts; the first part is the client side
35: * of things and is composed of all the response handlers, which are all named
36: * with a prefix of "cvs_resp_". The second part is the set of request
37: * handlers used by the server. These handlers process the request and
38: * generate the appropriate response to send back. The prefix for request
39: * handlers is "cvs_req_".
40: *
41: */
42:
43: #include <sys/types.h>
44: #include <sys/stat.h>
45:
46: #include <fcntl.h>
47: #include <stdio.h>
48: #include <errno.h>
49: #include <stdlib.h>
50: #include <unistd.h>
51: #include <signal.h>
52: #include <string.h>
53: #include <sysexits.h>
54: #ifdef CVS_ZLIB
55: #include <zlib.h>
56: #endif
57:
58: #include "buf.h"
59: #include "cvs.h"
60: #include "log.h"
1.14 jfb 61: #include "file.h"
1.13 jfb 62: #include "proto.h"
1.1 jfb 63:
64:
1.5 jfb 65: #define CVS_MTSTK_MAXDEPTH 16
66:
1.11 jfb 67: /* request flags */
68: #define CVS_REQF_RESP 0x01
69:
70:
1.5 jfb 71:
1.1 jfb 72:
73: extern int verbosity;
74: extern int cvs_compress;
75: extern char *cvs_rsh;
76: extern int cvs_trace;
77: extern int cvs_nolog;
78: extern int cvs_readonly;
79:
80:
81:
1.13 jfb 82: static int cvs_resp_validreq (struct cvsroot *, int, char *);
83: static int cvs_resp_cksum (struct cvsroot *, int, char *);
84: static int cvs_resp_modtime (struct cvsroot *, int, char *);
85: static int cvs_resp_m (struct cvsroot *, int, char *);
86: static int cvs_resp_ok (struct cvsroot *, int, char *);
87: static int cvs_resp_error (struct cvsroot *, int, char *);
88: static int cvs_resp_statdir (struct cvsroot *, int, char *);
89: static int cvs_resp_sticky (struct cvsroot *, int, char *);
90: static int cvs_resp_newentry (struct cvsroot *, int, char *);
91: static int cvs_resp_updated (struct cvsroot *, int, char *);
92: static int cvs_resp_removed (struct cvsroot *, int, char *);
93: static int cvs_resp_mode (struct cvsroot *, int, char *);
94: static int cvs_resp_modxpand (struct cvsroot *, int, char *);
1.14 jfb 95: static int cvs_resp_rcsdiff (struct cvsroot *, int, char *);
1.16 jfb 96: static int cvs_resp_template (struct cvsroot *, int, char *);
1.1 jfb 97:
1.13 jfb 98: static int cvs_initlog (void);
1.1 jfb 99:
1.7 jfb 100: static const char *cvs_months[] = {
1.9 jfb 101: "Jan", "Feb", "Mar", "Apr", "May", "Jun",
102: "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
1.7 jfb 103: };
104:
105:
106:
1.1 jfb 107: struct cvs_req {
108: int req_id;
109: char req_str[32];
110: u_int req_flags;
1.13 jfb 111: int (*req_hdlr)(int, char *);
1.1 jfb 112: } cvs_requests[] = {
113: { CVS_REQ_DIRECTORY, "Directory", 0, NULL },
114: { CVS_REQ_MAXDOTDOT, "Max-dotdot", 0, NULL },
115: { CVS_REQ_STATICDIR, "Static-directory", 0, NULL },
116: { CVS_REQ_STICKY, "Sticky", 0, NULL },
117: { CVS_REQ_ENTRY, "Entry", 0, NULL },
118: { CVS_REQ_ENTRYEXTRA, "EntryExtra", 0, NULL },
119: { CVS_REQ_CHECKINTIME, "Checkin-time", 0, NULL },
120: { CVS_REQ_MODIFIED, "Modified", 0, NULL },
121: { CVS_REQ_ISMODIFIED, "Is-modified", 0, NULL },
122: { CVS_REQ_UNCHANGED, "Unchanged", 0, NULL },
123: { CVS_REQ_USEUNCHANGED, "UseUnchanged", 0, NULL },
124: { CVS_REQ_NOTIFY, "Notify", 0, NULL },
125: { CVS_REQ_NOTIFYUSER, "NotifyUser", 0, NULL },
126: { CVS_REQ_QUESTIONABLE, "Questionable", 0, NULL },
127: { CVS_REQ_CASE, "Case", 0, NULL },
128: { CVS_REQ_UTF8, "Utf8", 0, NULL },
129: { CVS_REQ_ARGUMENT, "Argument", 0, NULL },
130: { CVS_REQ_ARGUMENTX, "Argumentx", 0, NULL },
131: { CVS_REQ_GLOBALOPT, "Global_option", 0, NULL },
132: { CVS_REQ_GZIPSTREAM, "Gzip-stream", 0, NULL },
133: { CVS_REQ_READCVSRC2, "read-cvsrc2", 0, NULL },
134: { CVS_REQ_READWRAP, "read-cvswrappers", 0, NULL },
135: { CVS_REQ_READIGNORE, "read-cvsignore", 0, NULL },
136: { CVS_REQ_ERRIFREADER, "Error-If-Reader", 0, NULL },
137: { CVS_REQ_VALIDRCSOPT, "Valid-RcsOptions", 0, NULL },
138: { CVS_REQ_SET, "Set", 0, NULL },
1.11 jfb 139: { CVS_REQ_XPANDMOD, "expand-modules", CVS_REQF_RESP, NULL },
1.1 jfb 140: { CVS_REQ_LOG, "log", 0, NULL },
1.11 jfb 141: { CVS_REQ_CO, "co", CVS_REQF_RESP, NULL },
142: { CVS_REQ_EXPORT, "export", CVS_REQF_RESP, NULL },
1.1 jfb 143: { CVS_REQ_RANNOTATE, "rannotate", 0, NULL },
144: { CVS_REQ_RDIFF, "rdiff", 0, NULL },
145: { CVS_REQ_RLOG, "rlog", 0, NULL },
1.11 jfb 146: { CVS_REQ_RTAG, "rtag", CVS_REQF_RESP, NULL },
147: { CVS_REQ_INIT, "init", CVS_REQF_RESP, NULL },
148: { CVS_REQ_STATUS, "status", CVS_REQF_RESP, NULL },
149: { CVS_REQ_UPDATE, "update", CVS_REQF_RESP, NULL },
1.1 jfb 150: { CVS_REQ_HISTORY, "history", 0, NULL },
1.11 jfb 151: { CVS_REQ_IMPORT, "import", CVS_REQF_RESP, NULL },
152: { CVS_REQ_ADD, "add", CVS_REQF_RESP, NULL },
153: { CVS_REQ_REMOVE, "remove", CVS_REQF_RESP, NULL },
154: { CVS_REQ_RELEASE, "release", CVS_REQF_RESP, NULL },
1.1 jfb 155: { CVS_REQ_ROOT, "Root", 0, NULL },
1.13 jfb 156: { CVS_REQ_VALIDRESP, "Valid-responses", 0, NULL },
1.11 jfb 157: { CVS_REQ_VALIDREQ, "valid-requests", CVS_REQF_RESP, NULL },
158: { CVS_REQ_VERSION, "version", CVS_REQF_RESP, NULL },
159: { CVS_REQ_NOOP, "noop", CVS_REQF_RESP, NULL },
160: { CVS_REQ_DIFF, "diff", CVS_REQF_RESP, NULL },
1.1 jfb 161: };
162:
163:
164: struct cvs_resp {
165: u_int resp_id;
166: char resp_str[32];
1.13 jfb 167: int (*resp_hdlr)(struct cvsroot *, int, char *);
1.1 jfb 168: } cvs_responses[] = {
169: { CVS_RESP_OK, "ok", cvs_resp_ok },
170: { CVS_RESP_ERROR, "error", cvs_resp_error },
171: { CVS_RESP_VALIDREQ, "Valid-requests", cvs_resp_validreq },
172: { CVS_RESP_M, "M", cvs_resp_m },
173: { CVS_RESP_MBINARY, "Mbinary", cvs_resp_m },
174: { CVS_RESP_MT, "MT", cvs_resp_m },
175: { CVS_RESP_E, "E", cvs_resp_m },
176: { CVS_RESP_F, "F", cvs_resp_m },
177: { CVS_RESP_CREATED, "Created", cvs_resp_updated },
178: { CVS_RESP_UPDATED, "Updated", cvs_resp_updated },
179: { CVS_RESP_UPDEXIST, "Update-existing", cvs_resp_updated },
1.15 jfb 180: { CVS_RESP_MERGED, "Merged", cvs_resp_updated },
1.1 jfb 181: { CVS_RESP_REMOVED, "Removed", cvs_resp_removed },
182: { CVS_RESP_CKSUM, "Checksum", cvs_resp_cksum },
183: { CVS_RESP_CLRSTATDIR, "Clear-static-directory", cvs_resp_statdir },
184: { CVS_RESP_SETSTATDIR, "Set-static-directory", cvs_resp_statdir },
185: { CVS_RESP_NEWENTRY, "New-entry", cvs_resp_newentry },
186: { CVS_RESP_CHECKEDIN, "Checked-in", cvs_resp_newentry },
187: { CVS_RESP_MODE, "Mode", cvs_resp_mode },
1.4 jfb 188: { CVS_RESP_MODTIME, "Mod-time", cvs_resp_modtime },
1.5 jfb 189: { CVS_RESP_MODXPAND, "Module-expansion", cvs_resp_modxpand },
190: { CVS_RESP_SETSTICKY, "Set-sticky", cvs_resp_sticky },
191: { CVS_RESP_CLRSTICKY, "Clear-sticky", cvs_resp_sticky },
1.14 jfb 192: { CVS_RESP_RCSDIFF, "Rcs-diff", cvs_resp_rcsdiff },
1.16 jfb 193: { CVS_RESP_TEMPLATE, "Template", cvs_resp_template },
1.1 jfb 194: };
195:
1.17 ! jfb 196: #define CVS_NBREQ (sizeof(cvs_requests)/sizeof(cvs_requests[0]))
! 197: #define CVS_NBRESP (sizeof(cvs_responses)/sizeof(cvs_responses[0]))
! 198:
! 199:
! 200: /*
! 201: * The MT command uses scoping to tag the data. Whenever we encouter a '+',
! 202: * we push the name of the tag on the stack, and we pop it when we encounter
! 203: * a '-' with the same name.
! 204: */
1.1 jfb 205:
1.5 jfb 206: static char *cvs_mt_stack[CVS_MTSTK_MAXDEPTH];
207: static u_int cvs_mtstk_depth = 0;
208:
1.8 jfb 209: static time_t cvs_modtime = 0;
1.7 jfb 210:
1.5 jfb 211:
1.1 jfb 212: /* mask of requets supported by server */
213: static u_char cvs_server_validreq[CVS_REQ_MAX + 1];
214:
1.17 ! jfb 215: /* last checksum received */
1.5 jfb 216: char *cvs_fcksum = NULL;
217:
218: mode_t cvs_lastmode = 0;
219:
1.17 ! jfb 220: /* hack to receive the remote version without outputting it */
! 221: static u_int cvs_version_sent = 0;
! 222:
! 223:
1.13 jfb 224: static char cvs_proto_buf[4096];
225:
226: /*
227: * Output files for protocol logging when the CVS_CLIENT_LOG enviroment
228: * variable is set.
229: */
230: static int cvs_server_logon = 0;
231: static FILE *cvs_server_inlog = NULL;
232: static FILE *cvs_server_outlog = NULL;
233:
234:
235: /*
236: * cvs_connect()
237: *
238: * Open a client connection to the cvs server whose address is given in
239: * the <root> variable. The method used to connect depends on the
240: * setting of the CVS_RSH variable.
1.17 ! jfb 241: * Once the connection has been established, we first send the list of
! 242: * responses we support and request the list of supported requests from the
! 243: * server. Then, a version request is sent and various global flags are sent.
1.13 jfb 244: * Returns 0 on success, or -1 on failure.
245: */
246:
247: int
248: cvs_connect(struct cvsroot *root)
249: {
250: int argc, infd[2], outfd[2];
251: pid_t pid;
252: char *argv[16], *cvs_server_cmd, *vresp;
253:
254: if (pipe(infd) == -1) {
255: cvs_log(LP_ERRNO,
256: "failed to create input pipe for client connection");
257: return (-1);
258: }
259:
260: if (pipe(outfd) == -1) {
261: cvs_log(LP_ERRNO,
262: "failed to create output pipe for client connection");
263: (void)close(infd[0]);
264: (void)close(infd[1]);
265: return (-1);
266: }
267:
268: pid = fork();
269: if (pid == -1) {
270: cvs_log(LP_ERRNO, "failed to fork for cvs server connection");
271: return (-1);
272: }
273: if (pid == 0) {
274: if ((dup2(infd[0], STDIN_FILENO) == -1) ||
275: (dup2(outfd[1], STDOUT_FILENO) == -1)) {
276: cvs_log(LP_ERRNO,
277: "failed to setup standard streams for cvs server");
278: return (-1);
279: }
280: (void)close(infd[1]);
281: (void)close(outfd[0]);
282:
283: argc = 0;
284: argv[argc++] = cvs_rsh;
285:
286: if (root->cr_user != NULL) {
287: argv[argc++] = "-l";
288: argv[argc++] = root->cr_user;
289: }
290:
291:
292: cvs_server_cmd = getenv("CVS_SERVER");
293: if (cvs_server_cmd == NULL)
294: cvs_server_cmd = "cvs";
295:
296: argv[argc++] = root->cr_host;
297: argv[argc++] = cvs_server_cmd;
298: argv[argc++] = "server";
299: argv[argc] = NULL;
300:
301: execvp(argv[0], argv);
302: cvs_log(LP_ERRNO, "failed to exec");
303: exit(EX_OSERR);
304: }
305:
306: /* we are the parent */
307: (void)close(infd[0]);
308: (void)close(outfd[1]);
309:
310: root->cr_srvin = fdopen(infd[1], "w");
311: if (root->cr_srvin == NULL) {
312: cvs_log(LP_ERRNO, "failed to create pipe stream");
313: return (-1);
314: }
315:
316: root->cr_srvout = fdopen(outfd[0], "r");
317: if (root->cr_srvout == NULL) {
318: cvs_log(LP_ERRNO, "failed to create pipe stream");
319: return (-1);
320: }
321:
322: /* make the streams line-buffered */
323: (void)setvbuf(root->cr_srvin, NULL, _IOLBF, 0);
324: (void)setvbuf(root->cr_srvout, NULL, _IOLBF, 0);
325:
326: cvs_initlog();
327:
328: /*
329: * Send the server the list of valid responses, then ask for valid
330: * requests.
331: */
332:
333: vresp = cvs_resp_getvalid();
334: if (vresp == NULL) {
335: cvs_log(LP_ERR, "can't generate list of valid responses");
336: return (-1);
337: }
338:
339: if (cvs_sendreq(root, CVS_REQ_VALIDRESP, vresp) < 0) {
340: }
341: free(vresp);
342:
343: if (cvs_sendreq(root, CVS_REQ_VALIDREQ, NULL) < 0) {
344: cvs_log(LP_ERR, "failed to get valid requests from server");
345: return (-1);
346: }
347:
1.17 ! jfb 348: if (cvs_sendreq(root, CVS_REQ_VERSION, NULL) < 0)
! 349: cvs_log(LP_ERR, "failed to get remote version");
! 350:
1.13 jfb 351: /* now share our global options with the server */
352: if (verbosity == 1)
353: cvs_sendreq(root, CVS_REQ_GLOBALOPT, "-q");
354: else if (verbosity == 0)
355: cvs_sendreq(root, CVS_REQ_GLOBALOPT, "-Q");
356:
357: if (cvs_nolog)
358: cvs_sendreq(root, CVS_REQ_GLOBALOPT, "-l");
359: if (cvs_readonly)
360: cvs_sendreq(root, CVS_REQ_GLOBALOPT, "-r");
361: if (cvs_trace)
362: cvs_sendreq(root, CVS_REQ_GLOBALOPT, "-t");
363:
364: /* now send the CVSROOT to the server */
365: if (cvs_sendreq(root, CVS_REQ_ROOT, root->cr_dir) < 0)
366: return (-1);
367:
368: /* not sure why, but we have to send this */
369: if (cvs_sendreq(root, CVS_REQ_USEUNCHANGED, NULL) < 0)
370: return (-1);
371:
372: #ifdef CVS_ZLIB
373: /* if compression was requested, initialize it */
374: #endif
375:
376: cvs_log(LP_DEBUG, "connected to %s", root->cr_host);
377:
378: return (0);
379: }
380:
381:
382: /*
383: * cvs_disconnect()
384: *
385: * Disconnect from the cvs server.
386: */
387:
388: void
389: cvs_disconnect(struct cvsroot *root)
390: {
391: cvs_log(LP_DEBUG, "closing connection to %s", root->cr_host);
392: if (root->cr_srvin != NULL) {
393: (void)fclose(root->cr_srvin);
394: root->cr_srvin = NULL;
395: }
396: if (root->cr_srvout != NULL) {
397: (void)fclose(root->cr_srvout);
398: root->cr_srvout = NULL;
399: }
400: }
401:
1.1 jfb 402:
403: /*
404: * cvs_req_getbyid()
405: *
406: */
407:
1.13 jfb 408: struct cvs_req*
1.1 jfb 409: cvs_req_getbyid(int reqid)
410: {
411: u_int i;
412:
413: for (i = 0; i < CVS_NBREQ; i++)
414: if (cvs_requests[i].req_id == reqid)
1.13 jfb 415: return &(cvs_requests[i]);
1.1 jfb 416: return (NULL);
417: }
418:
419:
420: /*
421: * cvs_req_getbyname()
422: */
423:
1.13 jfb 424: struct cvs_req*
1.1 jfb 425: cvs_req_getbyname(const char *rname)
426: {
427: u_int i;
428:
429: for (i = 0; i < CVS_NBREQ; i++)
430: if (strcmp(cvs_requests[i].req_str, rname) == 0)
1.13 jfb 431: return &(cvs_requests[i]);
1.1 jfb 432:
1.13 jfb 433: return (NULL);
1.1 jfb 434: }
435:
436:
437: /*
438: * cvs_req_getvalid()
439: *
440: * Build a space-separated list of all the requests that this protocol
441: * implementation supports.
442: */
443:
444: char*
445: cvs_req_getvalid(void)
446: {
447: u_int i;
448: size_t len;
449: char *vrstr;
450: BUF *buf;
451:
452: buf = cvs_buf_alloc(512, BUF_AUTOEXT);
453: if (buf == NULL)
454: return (NULL);
455:
456: cvs_buf_set(buf, cvs_requests[0].req_str,
457: strlen(cvs_requests[0].req_str), 0);
458:
459: for (i = 1; i < CVS_NBREQ; i++) {
460: if ((cvs_buf_putc(buf, ' ') < 0) ||
461: (cvs_buf_append(buf, cvs_requests[i].req_str,
462: strlen(cvs_requests[i].req_str)) < 0)) {
463: cvs_buf_free(buf);
464: return (NULL);
465: }
466: }
467:
468: /* NUL-terminate */
469: if (cvs_buf_putc(buf, '\0') < 0) {
470: cvs_buf_free(buf);
471: return (NULL);
472: }
473:
474: len = cvs_buf_size(buf);
475: vrstr = (char *)malloc(len);
476:
477: cvs_buf_copy(buf, 0, vrstr, len);
478:
479: cvs_buf_free(buf);
480:
481: return (vrstr);
482: }
483:
484:
485: /*
486: * cvs_req_handle()
487: *
488: * Generic request handler dispatcher.
489: */
490:
491: int
492: cvs_req_handle(char *line)
493: {
1.16 jfb 494: u_int i;
495: char *cp, *cmd;
496:
497: cmd = line;
498:
499: cp = strchr(cmd, ' ');
500: if (cp != NULL)
501: *(cp++) = '\0';
502:
503: for (i = 0; i < CVS_NBREQ; i++) {
504: if (strcmp(cvs_requests[i].req_str, cmd) == 0) {
505: if (cvs_requests[i].req_hdlr == NULL) {
506: cvs_log(LP_ERR,
507: "unimplemented request handler for `%s'",
508: cmd);
509: break;
510: }
511: else
512: return (*cvs_requests[i].req_hdlr)
513: (cvs_requests[i].req_id, cp);
514: }
515: }
516:
517: /* unhandled */
518: return (-1);
1.1 jfb 519: }
520:
521:
522: /*
523: * cvs_resp_getbyid()
524: *
525: */
526:
1.13 jfb 527: struct cvs_resp*
1.1 jfb 528: cvs_resp_getbyid(int respid)
529: {
530: u_int i;
531:
532: for (i = 0; i < CVS_NBREQ; i++)
1.13 jfb 533: if (cvs_responses[i].resp_id == (u_int)respid)
534: return &(cvs_responses[i]);
1.1 jfb 535: return (NULL);
536: }
537:
538:
539: /*
540: * cvs_resp_getbyname()
541: */
542:
1.13 jfb 543: struct cvs_resp*
1.1 jfb 544: cvs_resp_getbyname(const char *rname)
545: {
546: u_int i;
547:
548: for (i = 0; i < CVS_NBREQ; i++)
549: if (strcmp(cvs_responses[i].resp_str, rname) == 0)
1.13 jfb 550: return &(cvs_responses[i]);
1.1 jfb 551:
1.13 jfb 552: return (NULL);
1.1 jfb 553: }
554:
555:
556: /*
557: * cvs_resp_getvalid()
558: *
559: * Build a space-separated list of all the responses that this protocol
560: * implementation supports.
561: */
562:
563: char*
564: cvs_resp_getvalid(void)
565: {
566: u_int i;
567: size_t len;
568: char *vrstr;
569: BUF *buf;
570:
571: buf = cvs_buf_alloc(512, BUF_AUTOEXT);
572: if (buf == NULL)
573: return (NULL);
574:
575: cvs_buf_set(buf, cvs_responses[0].resp_str,
576: strlen(cvs_responses[0].resp_str), 0);
577:
578: for (i = 1; i < CVS_NBRESP; i++) {
579: if ((cvs_buf_putc(buf, ' ') < 0) ||
580: (cvs_buf_append(buf, cvs_responses[i].resp_str,
581: strlen(cvs_responses[i].resp_str)) < 0)) {
582: cvs_buf_free(buf);
583: return (NULL);
584: }
585: }
586:
587: /* NUL-terminate */
588: if (cvs_buf_putc(buf, '\0') < 0) {
589: cvs_buf_free(buf);
590: return (NULL);
591: }
592:
593: len = cvs_buf_size(buf);
594: vrstr = (char *)malloc(len);
595:
596: cvs_buf_copy(buf, 0, vrstr, len);
597: cvs_buf_free(buf);
598:
599: return (vrstr);
600: }
601:
602:
603: /*
604: * cvs_resp_handle()
605: *
606: * Generic response handler dispatcher. The handler expects the first line
607: * of the command as single argument.
608: * Returns the return value of the command on success, or -1 on failure.
609: */
610:
611: int
1.13 jfb 612: cvs_resp_handle(struct cvsroot *root, char *line)
1.1 jfb 613: {
614: u_int i;
615: char *cp, *cmd;
616:
617: cmd = line;
618:
619: cp = strchr(cmd, ' ');
620: if (cp != NULL)
621: *(cp++) = '\0';
622:
623: for (i = 0; i < CVS_NBRESP; i++) {
1.16 jfb 624: if (strcmp(cvs_responses[i].resp_str, cmd) == 0) {
625: if (cvs_responses[i].resp_hdlr == NULL) {
626: cvs_log(LP_ERRNO,
627: "unimplemented response handler for `%s'",
628: cmd);
629: return (-1);
630: }
631: else
632: return (*cvs_responses[i].resp_hdlr)
633: (root, cvs_responses[i].resp_id, cp);
634: }
1.1 jfb 635: }
636:
637: /* unhandled */
638: return (-1);
639: }
640:
641:
642: /*
643: * cvs_resp_validreq()
644: *
645: * Handler for the `Valid-requests' response. The list of valid requests is
646: * split on spaces and each request's entry in the valid request array is set
647: * to 1 to indicate the validity.
648: * Returns 0 on success, or -1 on failure.
649: */
650:
651: static int
1.13 jfb 652: cvs_resp_validreq(struct cvsroot *root, int type, char *line)
1.1 jfb 653: {
654: char *sp, *ep;
1.13 jfb 655: struct cvs_req *req;
1.1 jfb 656:
657: /* parse the requests */
658: sp = line;
659: do {
660: ep = strchr(sp, ' ');
661: if (ep != NULL)
662: *ep = '\0';
663:
1.13 jfb 664: req = cvs_req_getbyname(sp);
665: if (req != NULL)
666: cvs_server_validreq[req->req_id] = 1;
1.1 jfb 667:
668: if (ep != NULL)
669: sp = ep + 1;
670: } while (ep != NULL);
671:
672: return (0);
673: }
674:
675:
676: /*
677: * cvs_resp_m()
678: *
1.4 jfb 679: * Handler for the `M', 'MT', `F' and `E' responses.
1.1 jfb 680: */
681:
682: static int
1.13 jfb 683: cvs_resp_m(struct cvsroot *root, int type, char *line)
1.1 jfb 684: {
1.5 jfb 685: char *cp;
1.1 jfb 686: FILE *stream;
687:
688: stream = NULL;
689:
690: switch (type) {
691: case CVS_RESP_F:
692: fflush(stderr);
693: return (0);
694: case CVS_RESP_M:
1.17 ! jfb 695: if (cvs_version_sent) {
! 696: /*
! 697: * Instead of outputting the line, we save it as the
! 698: * remote server's version string.
! 699: */
! 700: cvs_version_sent = 0;
! 701: root->cr_version = strdup(line);
! 702: return (0);
! 703: }
1.1 jfb 704: stream = stdout;
705: break;
706: case CVS_RESP_E:
707: stream = stderr;
708: break;
709: case CVS_RESP_MT:
1.5 jfb 710: if (*line == '+') {
711: if (cvs_mtstk_depth == CVS_MTSTK_MAXDEPTH) {
712: cvs_log(LP_ERR,
713: "MT scope stack has reached max depth");
714: return (-1);
715: }
1.6 jfb 716: cvs_mt_stack[cvs_mtstk_depth] = strdup(line + 1);
717: if (cvs_mt_stack[cvs_mtstk_depth] == NULL)
1.5 jfb 718: return (-1);
1.6 jfb 719: cvs_mtstk_depth++;
1.5 jfb 720: }
721: else if (*line == '-') {
722: if (cvs_mtstk_depth == 0) {
723: cvs_log(LP_ERR, "MT scope stack underflow");
724: return (-1);
725: }
1.6 jfb 726: else if (strcmp(line + 1,
727: cvs_mt_stack[cvs_mtstk_depth - 1]) != 0) {
1.5 jfb 728: cvs_log(LP_ERR, "mismatch in MT scope stack");
729: return (-1);
730: }
731: free(cvs_mt_stack[cvs_mtstk_depth--]);
732: }
733: else {
734: if (strcmp(line, "newline") == 0)
735: putc('\n', stdout);
736: else if (strncmp(line, "fname ", 6) == 0)
737: printf("%s", line + 6);
738: else {
739: /* assume text */
740: cp = strchr(line, ' ');
741: if (cp != NULL)
742: printf("%s", cp + 1);
743: }
744: }
745:
1.6 jfb 746: return (0);
1.1 jfb 747: case CVS_RESP_MBINARY:
1.5 jfb 748: cvs_log(LP_WARN, "Mbinary not supported in client yet");
1.1 jfb 749: break;
750: }
751:
752: fputs(line, stream);
753: fputc('\n', stream);
754:
755: return (0);
756: }
757:
758:
759: /*
760: * cvs_resp_ok()
761: *
762: * Handler for the `ok' response. This handler's job is to
763: */
764:
765: static int
1.13 jfb 766: cvs_resp_ok(struct cvsroot *root, int type, char *line)
1.1 jfb 767: {
768: return (1);
769: }
770:
771:
772: /*
773: * cvs_resp_error()
774: *
775: * Handler for the `error' response. This handler's job is to
776: */
777:
778: static int
1.13 jfb 779: cvs_resp_error(struct cvsroot *root, int type, char *line)
1.1 jfb 780: {
781: return (1);
782: }
783:
784:
785: /*
786: * cvs_resp_statdir()
787: *
788: * Handler for the `Clear-static-directory' and `Set-static-directory'
789: * responses.
790: */
791:
792: static int
1.13 jfb 793: cvs_resp_statdir(struct cvsroot *root, int type, char *line)
1.1 jfb 794: {
795: int fd;
1.6 jfb 796: char rpath[MAXPATHLEN], statpath[MAXPATHLEN];
797:
1.13 jfb 798: cvs_getln(root, rpath, sizeof(rpath));
1.1 jfb 799:
800: snprintf(statpath, sizeof(statpath), "%s/%s", line,
801: CVS_PATH_STATICENTRIES);
802:
803: if ((type == CVS_RESP_CLRSTATDIR) &&
1.5 jfb 804: (unlink(statpath) == -1) && (errno != ENOENT)) {
1.1 jfb 805: cvs_log(LP_ERRNO, "failed to unlink %s file",
806: CVS_PATH_STATICENTRIES);
807: return (-1);
808: }
809: else if (type == CVS_RESP_SETSTATDIR) {
1.5 jfb 810: fd = open(statpath, O_CREAT|O_TRUNC|O_WRONLY, 0400);
1.1 jfb 811: if (fd == -1) {
812: cvs_log(LP_ERRNO, "failed to create %s file",
813: CVS_PATH_STATICENTRIES);
814: return (-1);
815: }
816: (void)close(fd);
1.5 jfb 817:
818: }
819:
820: return (0);
821: }
822:
823: /*
824: * cvs_resp_sticky()
825: *
826: * Handler for the `Clear-sticky' and `Set-sticky' responses.
827: */
828:
829: static int
1.13 jfb 830: cvs_resp_sticky(struct cvsroot *root, int type, char *line)
1.5 jfb 831: {
1.9 jfb 832: size_t len;
1.6 jfb 833: char rpath[MAXPATHLEN];
834: struct stat st;
1.7 jfb 835: CVSFILE *cf;
1.6 jfb 836:
1.9 jfb 837: /* remove trailing slash */
838: len = strlen(line);
839: if ((len > 0) && (line[len - 1] == '/'))
840: line[--len] = '\0';
841:
1.6 jfb 842: /* get the remote path */
1.13 jfb 843: cvs_getln(root, rpath, sizeof(rpath));
1.6 jfb 844:
845: /* if the directory doesn't exist, create it */
846: if (stat(line, &st) == -1) {
1.7 jfb 847: /* attempt to create it */
1.6 jfb 848: if (errno != ENOENT) {
849: cvs_log(LP_ERRNO, "failed to stat %s", line);
850: }
1.7 jfb 851: else {
852: cf = cvs_file_create(line, DT_DIR, 0755);
853: if (cf == NULL)
854: return (-1);
855: cf->cf_ddat->cd_repo = strdup(line);
1.14 jfb 856: cf->cf_ddat->cd_root = root;
857: root->cr_ref++;
1.7 jfb 858: cvs_mkadmin(cf, 0755);
859:
860: cvs_file_free(cf);
1.6 jfb 861: }
862: }
863:
1.5 jfb 864: if (type == CVS_RESP_CLRSTICKY) {
865: }
866: else if (type == CVS_RESP_SETSTICKY) {
1.1 jfb 867: }
868:
869: return (0);
870: }
871:
872:
873: /*
874: * cvs_resp_newentry()
875: *
876: * Handler for the `New-entry' response and `Checked-in' responses.
877: */
878:
879: static int
1.13 jfb 880: cvs_resp_newentry(struct cvsroot *root, int type, char *line)
1.1 jfb 881: {
1.15 jfb 882: char entbuf[128];
1.1 jfb 883: CVSENTRIES *entfile;
884:
885: /* get the remote path */
1.13 jfb 886: cvs_getln(root, entbuf, sizeof(entbuf));
1.1 jfb 887:
888: /* get the new Entries line */
1.13 jfb 889: if (cvs_getln(root, entbuf, sizeof(entbuf)) < 0)
1.1 jfb 890: return (-1);
891:
1.15 jfb 892: entfile = cvs_ent_open(line, O_WRONLY);
1.1 jfb 893: if (entfile == NULL)
894: return (-1);
1.3 jfb 895: cvs_ent_addln(entfile, entbuf);
1.1 jfb 896: cvs_ent_close(entfile);
897:
898: return (0);
899: }
900:
901:
902: /*
903: * cvs_resp_cksum()
904: *
905: * Handler for the `Checksum' response. We store the checksum received for
906: * the next file in a dynamically-allocated buffer pointed to by <cvs_fcksum>.
907: * Upon next file reception, the handler checks to see if there is a stored
908: * checksum.
909: * The file handler must make sure that the checksums match and free the
910: * checksum buffer once it's done to indicate there is no further checksum.
911: */
912:
913: static int
1.13 jfb 914: cvs_resp_cksum(struct cvsroot *root, int type, char *line)
1.1 jfb 915: {
916: if (cvs_fcksum != NULL) {
917: cvs_log(LP_WARN, "unused checksum");
918: free(cvs_fcksum);
919: }
920:
921: cvs_fcksum = strdup(line);
922: if (cvs_fcksum == NULL) {
923: cvs_log(LP_ERRNO, "failed to copy checksum string");
924: return (-1);
925: }
926:
1.4 jfb 927: return (0);
928: }
929:
930:
931: /*
932: * cvs_resp_modtime()
933: *
934: * Handler for the `Mod-time' file update modifying response. The timestamp
935: * given is used to set the last modification time on the next file that
936: * will be received.
937: */
938:
939: static int
1.13 jfb 940: cvs_resp_modtime(struct cvsroot *root, int type, char *line)
1.4 jfb 941: {
1.8 jfb 942: int i;
943: long off;
944: char sign, mon[8], gmt[8], hr[4], min[4], *ep;
945: struct tm cvs_tm;
946:
947: memset(&cvs_tm, 0, sizeof(cvs_tm));
1.9 jfb 948: sscanf(line, "%d %3s %d %2d:%2d:%2d %5s", &cvs_tm.tm_mday, mon,
1.8 jfb 949: &cvs_tm.tm_year, &cvs_tm.tm_hour, &cvs_tm.tm_min,
950: &cvs_tm.tm_sec, gmt);
951: cvs_tm.tm_year -= 1900;
1.9 jfb 952: cvs_tm.tm_isdst = -1;
1.8 jfb 953:
954: if (*gmt == '-') {
1.9 jfb 955: sscanf(gmt, "%c%2s%2s", &sign, hr, min);
1.8 jfb 956: cvs_tm.tm_gmtoff = strtol(hr, &ep, 10);
957: if ((cvs_tm.tm_gmtoff == LONG_MIN) ||
958: (cvs_tm.tm_gmtoff == LONG_MAX) ||
959: (*ep != '\0')) {
960: cvs_log(LP_ERR,
961: "parse error in GMT hours specification `%s'", hr);
962: cvs_tm.tm_gmtoff = 0;
963: }
964: else {
965: /* get seconds */
966: cvs_tm.tm_gmtoff *= 3600;
1.7 jfb 967:
1.8 jfb 968: /* add the minutes */
969: off = strtol(min, &ep, 10);
970: if ((cvs_tm.tm_gmtoff == LONG_MIN) ||
971: (cvs_tm.tm_gmtoff == LONG_MAX) ||
972: (*ep != '\0')) {
973: cvs_log(LP_ERR,
974: "parse error in GMT minutes "
975: "specification `%s'", min);
976: }
977: else
978: cvs_tm.tm_gmtoff += off * 60;
979: }
980: }
981: if (sign == '-')
982: cvs_tm.tm_gmtoff = -cvs_tm.tm_gmtoff;
1.7 jfb 983:
1.8 jfb 984: for (i = 0; i < (int)(sizeof(cvs_months)/sizeof(cvs_months[0])); i++) {
985: if (strcmp(cvs_months[i], mon) == 0) {
986: cvs_tm.tm_mon = i;
987: break;
988: }
1.7 jfb 989: }
990:
1.8 jfb 991: cvs_modtime = mktime(&cvs_tm);
1.1 jfb 992: return (0);
993: }
994:
995:
996: /*
997: * cvs_resp_updated()
998: *
1.6 jfb 999: * Handler for the `Updated' and `Created' responses.
1.1 jfb 1000: */
1001:
1002: static int
1.13 jfb 1003: cvs_resp_updated(struct cvsroot *root, int type, char *line)
1.1 jfb 1004: {
1.7 jfb 1005: size_t len;
1.14 jfb 1006: mode_t fmode;
1.7 jfb 1007: char tbuf[32], path[MAXPATHLEN], cksum_buf[CVS_CKSUM_LEN];
1.14 jfb 1008: BUF *fbuf;
1.7 jfb 1009: CVSENTRIES *ef;
1.6 jfb 1010: struct cvs_ent *ep;
1.1 jfb 1011:
1.13 jfb 1012: ep = NULL;
1013:
1.15 jfb 1014: len = strlen(tbuf);
1015: if ((len > 0) && (tbuf[len - 1] == '\n'))
1016: tbuf[--len] = '\0';
1017:
1018: /* read the remote path of the file */
1019: cvs_getln(root, path, sizeof(path));
1020:
1021: /* read the new entry */
1022: cvs_getln(root, path, sizeof(path));
1023: ep = cvs_ent_parse(path);
1024: if (ep == NULL)
1025: return (-1);
1026: snprintf(path, sizeof(path), "%s/%s", line, ep->ce_name);
1.6 jfb 1027:
1.14 jfb 1028:
1.15 jfb 1029: if (type == CVS_RESP_CREATED) {
1.7 jfb 1030: /* set the timestamp as the last one received from Mod-time */
1.8 jfb 1031: ep->ce_timestamp = ctime_r(&cvs_modtime, tbuf);
1.7 jfb 1032:
1033: ef = cvs_ent_open(line, O_WRONLY);
1034: if (ef == NULL)
1035: return (-1);
1036:
1037: cvs_ent_add(ef, ep);
1038: cvs_ent_close(ef);
1.1 jfb 1039: }
1040: else if (type == CVS_RESP_UPDEXIST) {
1041: }
1042: else if (type == CVS_RESP_UPDATED) {
1043: }
1044:
1.14 jfb 1045: fbuf = cvs_recvfile(root, &fmode);
1046: if (fbuf == NULL)
1.1 jfb 1047: return (-1);
1.14 jfb 1048:
1049: cvs_buf_write(fbuf, path, fmode);
1.1 jfb 1050:
1051: /* now see if there is a checksum */
1.6 jfb 1052: if (cvs_fcksum != NULL) {
1.14 jfb 1053: if (cvs_cksum(path, cksum_buf, sizeof(cksum_buf)) < 0) {
1.6 jfb 1054: }
1055:
1056: if (strcmp(cksum_buf, cvs_fcksum) != 0) {
1057: cvs_log(LP_ERR, "checksum error on received file");
1058: (void)unlink(line);
1059: }
1.1 jfb 1060:
1.6 jfb 1061: free(cvs_fcksum);
1062: cvs_fcksum = NULL;
1.1 jfb 1063: }
1064:
1065: return (0);
1066: }
1067:
1068:
1069: /*
1070: * cvs_resp_removed()
1071: *
1072: * Handler for the `Updated' response.
1073: */
1074:
1075: static int
1.13 jfb 1076: cvs_resp_removed(struct cvsroot *root, int type, char *line)
1.1 jfb 1077: {
1078: return (0);
1079: }
1080:
1081:
1082: /*
1083: * cvs_resp_mode()
1084: *
1085: * Handler for the `Mode' response.
1086: */
1087:
1088: static int
1.13 jfb 1089: cvs_resp_mode(struct cvsroot *root, int type, char *line)
1.1 jfb 1090: {
1091: if (cvs_strtomode(line, &cvs_lastmode) < 0) {
1092: return (-1);
1093: }
1.5 jfb 1094: return (0);
1095: }
1096:
1097:
1098: /*
1099: * cvs_resp_modxpand()
1100: *
1101: * Handler for the `Module-expansion' response.
1102: */
1103:
1104: static int
1.13 jfb 1105: cvs_resp_modxpand(struct cvsroot *root, int type, char *line)
1.5 jfb 1106: {
1.1 jfb 1107: return (0);
1108: }
1109:
1.14 jfb 1110: /*
1111: * cvs_resp_rcsdiff()
1112: *
1113: * Handler for the `Rcs-diff' response.
1114: */
1115:
1116: static int
1117: cvs_resp_rcsdiff(struct cvsroot *root, int type, char *line)
1118: {
1119: char file[MAXPATHLEN], buf[MAXPATHLEN], cksum_buf[CVS_CKSUM_LEN];
1120: char *fname, *orig, *patch;
1121: mode_t fmode;
1122: BUF *res, *fcont, *patchbuf;
1123: CVSENTRIES *entf;
1124: struct cvs_ent *ent;
1125:
1126: /* get remote path and build local path of file to be patched */
1127: cvs_getln(root, buf, sizeof(buf));
1128: fname = strrchr(buf, '/');
1129: if (fname == NULL)
1130: fname = buf;
1131: snprintf(file, sizeof(file), "%s%s", line, fname);
1132:
1133: /* get updated entry fields */
1134: cvs_getln(root, buf, sizeof(buf));
1135: ent = cvs_ent_parse(buf);
1136: if (ent == NULL) {
1137: return (-1);
1138: }
1139:
1140: patchbuf = cvs_recvfile(root, &fmode);
1141: fcont = cvs_buf_load(file, BUF_AUTOEXT);
1142: if (fcont == NULL)
1143: return (-1);
1144:
1145: cvs_buf_putc(patchbuf, '\0');
1146: cvs_buf_putc(fcont, '\0');
1147: orig = cvs_buf_release(fcont);
1148: patch = cvs_buf_release(patchbuf);
1149:
1150: res = rcs_patch(orig, patch);
1151: if (res == NULL)
1152: return (-1);
1153:
1154: cvs_buf_write(res, file, fmode);
1155:
1156: /* now see if there is a checksum */
1157: if (cvs_fcksum != NULL) {
1158: if (cvs_cksum(file, cksum_buf, sizeof(cksum_buf)) < 0) {
1159: }
1160:
1161: if (strcmp(cksum_buf, cvs_fcksum) != 0) {
1162: cvs_log(LP_ERR, "checksum error on received file");
1163: (void)unlink(file);
1164: }
1165:
1166: free(cvs_fcksum);
1167: cvs_fcksum = NULL;
1168: }
1169:
1170: /* update revision in entries */
1171: entf = cvs_ent_open(line, O_WRONLY);
1172: if (entf == NULL)
1173: return (-1);
1174:
1175: cvs_ent_close(entf);
1.16 jfb 1176:
1177: return (0);
1178: }
1179:
1180:
1181: /*
1182: * cvs_resp_template()
1183: *
1184: * Handler for the `Template' response.
1185: */
1186:
1187: static int
1188: cvs_resp_template(struct cvsroot *root, int type, char *line)
1189: {
1190: mode_t mode;
1191: BUF *tmpl;
1192:
1193: tmpl = cvs_recvfile(root, &mode);
1194: if (tmpl == NULL)
1195: return (-1);
1.14 jfb 1196:
1197: return (0);
1198: }
1199:
1.1 jfb 1200:
1201: /*
1202: * cvs_sendfile()
1203: *
1204: * Send the mode and size of a file followed by the file's contents.
1205: * Returns 0 on success, or -1 on failure.
1206: */
1207:
1208: int
1.13 jfb 1209: cvs_sendfile(struct cvsroot *root, const char *path)
1.1 jfb 1210: {
1211: int fd;
1212: ssize_t ret;
1213: char buf[4096];
1214: struct stat st;
1215:
1216: if (stat(path, &st) == -1) {
1217: cvs_log(LP_ERRNO, "failed to stat `%s'", path);
1218: return (-1);
1219: }
1220:
1221: fd = open(path, O_RDONLY, 0);
1222: if (fd == -1) {
1223: return (-1);
1224: }
1225:
1226: if (cvs_modetostr(st.st_mode, buf, sizeof(buf)) < 0)
1227: return (-1);
1228:
1.13 jfb 1229: cvs_sendln(root, buf);
1.1 jfb 1230: snprintf(buf, sizeof(buf), "%lld\n", st.st_size);
1.13 jfb 1231: cvs_sendln(root, buf);
1.1 jfb 1232:
1233: while ((ret = read(fd, buf, sizeof(buf))) != 0) {
1234: if (ret == -1) {
1235: cvs_log(LP_ERRNO, "failed to read file `%s'", path);
1236: return (-1);
1237: }
1238:
1.13 jfb 1239: cvs_sendraw(root, buf, (size_t)ret);
1.1 jfb 1240:
1241: }
1242:
1243: (void)close(fd);
1244:
1245: return (0);
1246: }
1247:
1248:
1249: /*
1250: * cvs_recvfile()
1251: *
1252: * Receive the mode and size of a file followed the file's contents and
1253: * create or update the file whose path is <path> with the received
1254: * information.
1255: */
1256:
1.14 jfb 1257: BUF*
1258: cvs_recvfile(struct cvsroot *root, mode_t *mode)
1.1 jfb 1259: {
1260: size_t len;
1261: ssize_t ret;
1262: off_t fsz, cnt;
1263: char buf[4096], *ep;
1.14 jfb 1264: BUF *fbuf;
1265:
1266: fbuf = cvs_buf_alloc(sizeof(buf), BUF_AUTOEXT);
1267: if (fbuf == NULL)
1268: return (NULL);
1.1 jfb 1269:
1.13 jfb 1270: if ((cvs_getln(root, buf, sizeof(buf)) < 0) ||
1.14 jfb 1271: (cvs_strtomode(buf, mode) < 0)) {
1272: return (NULL);
1.1 jfb 1273: }
1274:
1.13 jfb 1275: cvs_getln(root, buf, sizeof(buf));
1.1 jfb 1276:
1277: fsz = (off_t)strtol(buf, &ep, 10);
1278: if (*ep != '\0') {
1279: cvs_log(LP_ERR, "parse error in file size transmission");
1.14 jfb 1280: return (NULL);
1.1 jfb 1281: }
1282:
1283: cnt = 0;
1284: do {
1285: len = MIN(sizeof(buf), (size_t)(fsz - cnt));
1.6 jfb 1286: if (len == 0)
1287: break;
1.13 jfb 1288: ret = cvs_recvraw(root, buf, len);
1.1 jfb 1289: if (ret == -1) {
1.14 jfb 1290: cvs_buf_free(fbuf);
1291: return (NULL);
1.1 jfb 1292: }
1293:
1.14 jfb 1294: if (cvs_buf_append(fbuf, buf, (size_t)ret) == -1) {
1295: cvs_log(LP_ERR,
1296: "failed to append received file data");
1297: cvs_buf_free(fbuf);
1298: return (NULL);
1.1 jfb 1299: }
1300:
1301: cnt += (off_t)ret;
1302: } while (cnt < fsz);
1303:
1.14 jfb 1304: return (fbuf);
1.1 jfb 1305: }
1.12 jfb 1306:
1307:
1308: /*
1309: * cvs_sendreq()
1310: *
1311: * Send a request to the server of type <rid>, with optional arguments
1312: * contained in <arg>, which should not be terminated by a newline.
1313: * Returns 0 on success, or -1 on failure.
1314: */
1315:
1316: int
1.13 jfb 1317: cvs_sendreq(struct cvsroot *root, u_int rid, const char *arg)
1.12 jfb 1318: {
1319: int ret;
1.13 jfb 1320: struct cvs_req *req;
1.12 jfb 1321:
1322: if (root->cr_srvin == NULL) {
1323: cvs_log(LP_ERR, "cannot send request: Not connected");
1324: return (-1);
1325: }
1326:
1.13 jfb 1327: req = cvs_req_getbyid(rid);
1328: if (req == NULL) {
1.12 jfb 1329: cvs_log(LP_ERR, "unsupported request type %u", rid);
1330: return (-1);
1331: }
1332:
1.13 jfb 1333: snprintf(cvs_proto_buf, sizeof(cvs_proto_buf), "%s%s%s\n",
1334: req->req_str, (arg == NULL) ? "" : " ", (arg == NULL) ? "" : arg);
1.12 jfb 1335:
1336: if (cvs_server_inlog != NULL)
1.13 jfb 1337: fputs(cvs_proto_buf, cvs_server_inlog);
1.12 jfb 1338:
1.13 jfb 1339: ret = fputs(cvs_proto_buf, root->cr_srvin);
1.12 jfb 1340: if (ret == EOF) {
1341: cvs_log(LP_ERRNO, "failed to send request to server");
1342: return (-1);
1343: }
1.17 ! jfb 1344:
! 1345: if (rid == CVS_REQ_VERSION)
! 1346: cvs_version_sent = 1;
1.12 jfb 1347:
1.13 jfb 1348: if (req->req_flags & CVS_REQF_RESP)
1.12 jfb 1349: ret = cvs_getresp(root);
1350:
1.13 jfb 1351: return (ret);
1.12 jfb 1352: }
1353:
1354:
1355: /*
1356: * cvs_getresp()
1357: *
1358: * Get a response from the server. This call will actually read and handle
1359: * responses from the server until one of the response handlers returns
1360: * non-zero (either an error occured or the end of the response was reached).
1361: * Returns the number of handled commands on success, or -1 on failure.
1362: */
1363:
1364: int
1.13 jfb 1365: cvs_getresp(struct cvsroot *root)
1.12 jfb 1366: {
1.13 jfb 1367: int nbcmd, ret;
1368: size_t len;
1.12 jfb 1369:
1370: nbcmd = 0;
1371:
1372: do {
1373: /* wait for incoming data */
1.13 jfb 1374: if (fgets(cvs_proto_buf, sizeof(cvs_proto_buf),
1.12 jfb 1375: root->cr_srvout) == NULL) {
1376: if (feof(root->cr_srvout))
1377: return (0);
1378: cvs_log(LP_ERRNO,
1379: "failed to read response from server");
1380: return (-1);
1381: }
1382:
1383: if (cvs_server_outlog != NULL)
1.13 jfb 1384: fputs(cvs_proto_buf, cvs_server_outlog);
1.12 jfb 1385:
1.13 jfb 1386: if ((len = strlen(cvs_proto_buf)) != 0) {
1387: if (cvs_proto_buf[len - 1] != '\n') {
1.12 jfb 1388: /* truncated line */
1389: }
1390: else
1.13 jfb 1391: cvs_proto_buf[--len] = '\0';
1.12 jfb 1392: }
1393:
1.13 jfb 1394: ret = cvs_resp_handle(root, cvs_proto_buf);
1.12 jfb 1395: nbcmd++;
1396: } while (ret == 0);
1397:
1398: if (ret > 0)
1399: ret = nbcmd;
1400: return (ret);
1401: }
1402:
1403:
1404: /*
1.13 jfb 1405: * cvs_getln()
1406: *
1407: * Get a line from the server's output and store it in <lbuf>. The terminating
1408: * newline character is stripped from the result.
1409: */
1410:
1411: int
1412: cvs_getln(struct cvsroot *root, char *lbuf, size_t len)
1413: {
1414: size_t rlen;
1415:
1416: if (fgets(lbuf, len, root->cr_srvout) == NULL) {
1417: if (ferror(root->cr_srvout)) {
1418: cvs_log(LP_ERRNO, "failed to read line from server");
1419: return (-1);
1420: }
1421:
1422: if (feof(root->cr_srvout))
1423: *lbuf = '\0';
1424: }
1425:
1426: if (cvs_server_outlog != NULL)
1427: fputs(lbuf, cvs_server_outlog);
1428:
1429: rlen = strlen(lbuf);
1430: if ((rlen > 0) && (lbuf[rlen - 1] == '\n'))
1431: lbuf[--rlen] = '\0';
1432:
1433: return (0);
1434: }
1435:
1436: #ifdef notyet
1437: /*
1.12 jfb 1438: * cvs_sendresp()
1439: *
1440: * Send a response to the client of type <rid>, with optional arguments
1441: * contained in <arg>, which should not be terminated by a newline.
1442: * Returns 0 on success, or -1 on failure.
1443: */
1444:
1445: int
1446: cvs_sendresp(u_int rid, const char *arg)
1447: {
1448: int ret;
1449: size_t len;
1450: const char *resp;
1451:
1452: resp = cvs_resp_getbyid(rid);
1.13 jfb 1453: if (resp == NULL) {
1.12 jfb 1454: cvs_log(LP_ERR, "unsupported response type %u", rid);
1455: return (-1);
1456: }
1457:
1.13 jfb 1458: snprintf(cvs_proto_buf, sizeof(cvs_proto_buf), "%s %s\n", resp,
1.12 jfb 1459: (arg == NULL) ? "" : arg);
1460:
1461: ret = fputs(resp, stdout);
1462: if (ret == EOF) {
1463: cvs_log(LP_ERRNO, "failed to send response to client");
1464: }
1465: else {
1466: if (arg != NULL)
1467: ret = fprintf(stdout, " %s", arg);
1468: putc('\n', stdout);
1469: }
1470: return (0);
1471: }
1472:
1473:
1474: /*
1475: * cvs_getreq()
1476: *
1477: * Get a request from the client.
1478: */
1479:
1480: int
1481: cvs_getreq(void)
1482: {
1483: int nbcmd;
1484:
1485: nbcmd = 0;
1486:
1487: do {
1488: /* wait for incoming data */
1.13 jfb 1489: if (fgets(cvs_proto_buf, sizeof(cvs_proto_buf),
1.12 jfb 1490: stdin) == NULL) {
1491: if (feof(stdin))
1492: return (0);
1493: cvs_log(LP_ERRNO,
1494: "failed to read request from client");
1495: return (-1);
1496: }
1497:
1.13 jfb 1498: if ((len = strlen(cvs_proto_buf)) != 0) {
1499: if (cvs_proto_buf[len - 1] != '\n') {
1.12 jfb 1500: /* truncated line */
1501: }
1502: else
1.13 jfb 1503: cvs_proto_buf[--len] = '\0';
1.12 jfb 1504: }
1505:
1.13 jfb 1506: ret = cvs_resp_handle(cvs_proto_buf);
1.12 jfb 1507: } while (ret == 0);
1508: }
1509: #endif
1510:
1511:
1512: /*
1513: * cvs_sendln()
1514: *
1515: * Send a single line <line> string to the server. The line is sent as is,
1516: * without any modifications.
1517: * Returns 0 on success, or -1 on failure.
1518: */
1519:
1520: int
1521: cvs_sendln(struct cvsroot *root, const char *line)
1522: {
1523: int nl;
1524: size_t len;
1525:
1526: nl = 0;
1527: len = strlen(line);
1528:
1529: if ((len > 0) && (line[len - 1] != '\n'))
1530: nl = 1;
1531:
1532: if (cvs_server_inlog != NULL) {
1533: fputs(line, cvs_server_inlog);
1534: if (nl)
1535: fputc('\n', cvs_server_inlog);
1536: }
1537: fputs(line, root->cr_srvin);
1538: if (nl)
1539: fputc('\n', root->cr_srvin);
1540:
1541: return (0);
1542: }
1543:
1544:
1545: /*
1.13 jfb 1546: * cvs_sendraw()
1.12 jfb 1547: *
1548: * Send the first <len> bytes from the buffer <src> to the server.
1549: */
1550:
1551: int
1.13 jfb 1552: cvs_sendraw(struct cvsroot *root, const void *src, size_t len)
1.12 jfb 1553: {
1554: if (cvs_server_inlog != NULL)
1555: fwrite(src, sizeof(char), len, cvs_server_inlog);
1.13 jfb 1556: if (fwrite(src, sizeof(char), len, root->cr_srvin) < len) {
1.12 jfb 1557: return (-1);
1558: }
1559:
1560: return (0);
1561: }
1562:
1563:
1564: /*
1.13 jfb 1565: * cvs_recvraw()
1.12 jfb 1566: *
1567: * Receive the first <len> bytes from the buffer <src> to the server.
1568: */
1569:
1570: ssize_t
1.13 jfb 1571: cvs_recvraw(struct cvsroot *root, void *dst, size_t len)
1.12 jfb 1572: {
1573: size_t ret;
1574:
1.13 jfb 1575: ret = fread(dst, sizeof(char), len, root->cr_srvout);
1.12 jfb 1576: if (ret == 0)
1577: return (-1);
1578: if (cvs_server_outlog != NULL)
1579: fwrite(dst, sizeof(char), len, cvs_server_outlog);
1580: return (ssize_t)ret;
1581: }
1582:
1583:
1584: /*
1.13 jfb 1585: * cvs_senddir()
1.12 jfb 1586: *
1587: * Send a `Directory' request along with the 2 paths that follow it.
1588: */
1589:
1590: int
1.13 jfb 1591: cvs_senddir(struct cvsroot *root, CVSFILE *dir)
1.12 jfb 1592: {
1.13 jfb 1593: char buf[MAXPATHLEN];
1.12 jfb 1594:
1.13 jfb 1595: if (dir->cf_ddat->cd_repo == NULL)
1596: strlcpy(buf, root->cr_dir, sizeof(buf));
1597: else
1598: snprintf(buf, sizeof(buf), "%s/%s", root->cr_dir,
1599: dir->cf_ddat->cd_repo);
1.12 jfb 1600:
1.13 jfb 1601: if ((cvs_sendreq(root, CVS_REQ_DIRECTORY, dir->cf_path) < 0) ||
1602: (cvs_sendln(root, buf) < 0))
1.12 jfb 1603: return (-1);
1604:
1605: return (0);
1606: }
1607:
1608:
1609: /*
1.13 jfb 1610: * cvs_sendarg()
1.12 jfb 1611: *
1612: * Send the argument <arg> to the server. The argument <append> is used to
1613: * determine if the argument should be simply appended to the last argument
1614: * sent or if it should be created as a new argument (0).
1615: */
1616:
1617: int
1.13 jfb 1618: cvs_sendarg(struct cvsroot *root, const char *arg, int append)
1.12 jfb 1619: {
1.13 jfb 1620: return cvs_sendreq(root, ((append == 0) ?
1621: CVS_REQ_ARGUMENT : CVS_REQ_ARGUMENTX), arg);
1.12 jfb 1622: }
1623:
1624:
1625: /*
1.13 jfb 1626: * cvs_sendentry()
1.12 jfb 1627: *
1628: * Send an `Entry' request to the server along with the mandatory fields from
1629: * the CVS entry <ent> (which are the name and revision).
1630: */
1631:
1632: int
1.13 jfb 1633: cvs_sendentry(struct cvsroot *root, const struct cvs_ent *ent)
1.12 jfb 1634: {
1635: char ebuf[128], numbuf[64];
1636:
1637: snprintf(ebuf, sizeof(ebuf), "/%s/%s///", ent->ce_name,
1638: rcsnum_tostr(ent->ce_rev, numbuf, sizeof(numbuf)));
1639:
1.13 jfb 1640: return cvs_sendreq(root, CVS_REQ_ENTRY, ebuf);
1.12 jfb 1641: }
1642:
1643:
1644: /*
1.13 jfb 1645: * cvs_initlog()
1.12 jfb 1646: *
1647: * Initialize protocol logging if the CVS_CLIENT_LOG environment variable is
1648: * set. In this case, the variable's value is used as a path to which the
1649: * appropriate suffix is added (".in" for server input and ".out" for server
1650: * output.
1651: * Returns 0 on success, or -1 on failure.
1652: */
1653:
1654: static int
1.13 jfb 1655: cvs_initlog(void)
1.12 jfb 1656: {
1657: char *env, fpath[MAXPATHLEN];
1658:
1.13 jfb 1659: /* avoid doing it more than once */
1660: if (cvs_server_logon)
1661: return (0);
1662:
1.12 jfb 1663: env = getenv("CVS_CLIENT_LOG");
1664: if (env == NULL)
1665: return (0);
1666:
1667: strlcpy(fpath, env, sizeof(fpath));
1668: strlcat(fpath, ".in", sizeof(fpath));
1669: cvs_server_inlog = fopen(fpath, "w");
1670: if (cvs_server_inlog == NULL) {
1671: cvs_log(LP_ERRNO, "failed to open server input log `%s'",
1672: fpath);
1673: return (-1);
1674: }
1675:
1676: strlcpy(fpath, env, sizeof(fpath));
1677: strlcat(fpath, ".out", sizeof(fpath));
1678: cvs_server_outlog = fopen(fpath, "w");
1679: if (cvs_server_outlog == NULL) {
1680: cvs_log(LP_ERRNO, "failed to open server output log `%s'",
1681: fpath);
1682: return (-1);
1683: }
1684:
1685: /* make the streams line-buffered */
1686: setvbuf(cvs_server_inlog, NULL, _IOLBF, 0);
1687: setvbuf(cvs_server_outlog, NULL, _IOLBF, 0);
1688:
1.13 jfb 1689: cvs_server_logon = 1;
1.12 jfb 1690:
1691: return (0);
1692: }
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