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