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Annotation of src/usr.bin/cvs/resp.c, Revision 1.38

1.38    ! joris       1: /*     $OpenBSD: resp.c,v 1.37 2005/05/24 04:12:25 jfb Exp $   */
1.1       jfb         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:
                     28: #include <sys/types.h>
                     29: #include <sys/stat.h>
1.2       jfb        30: #include <sys/time.h>
1.1       jfb        31:
                     32: #include <fcntl.h>
                     33: #include <stdio.h>
                     34: #include <errno.h>
                     35: #include <dirent.h>
                     36: #include <stdlib.h>
                     37: #include <unistd.h>
                     38: #include <string.h>
1.16      jfb        39: #include <libgen.h>
1.1       jfb        40:
                     41: #include "buf.h"
                     42: #include "cvs.h"
                     43: #include "log.h"
                     44: #include "file.h"
                     45: #include "proto.h"
                     46:
                     47:
                     48: #define CVS_MTSTK_MAXDEPTH   16
                     49:
                     50:
1.4       jfb        51: #define STRIP_SLASH(p)                                         \
                     52:        do {                                                    \
1.37      jfb        53:                size_t _slen;                                   \
                     54:                _slen = strlen(p);                              \
                     55:                while ((_slen > 0) && (p[_slen - 1] == '/'))    \
                     56:                        p[--_slen] = '\0';                      \
1.4       jfb        57:        } while (0)
                     58:
                     59:
1.1       jfb        60: static int  cvs_resp_validreq  (struct cvsroot *, int, char *);
                     61: static int  cvs_resp_cksum     (struct cvsroot *, int, char *);
                     62: static int  cvs_resp_modtime   (struct cvsroot *, int, char *);
                     63: static int  cvs_resp_m         (struct cvsroot *, int, char *);
                     64: static int  cvs_resp_ok        (struct cvsroot *, int, char *);
                     65: static int  cvs_resp_error     (struct cvsroot *, int, char *);
                     66: static int  cvs_resp_statdir   (struct cvsroot *, int, char *);
                     67: static int  cvs_resp_sticky    (struct cvsroot *, int, char *);
                     68: static int  cvs_resp_newentry  (struct cvsroot *, int, char *);
                     69: static int  cvs_resp_updated   (struct cvsroot *, int, char *);
                     70: static int  cvs_resp_removed   (struct cvsroot *, int, char *);
                     71: static int  cvs_resp_mode      (struct cvsroot *, int, char *);
                     72: static int  cvs_resp_modxpand  (struct cvsroot *, int, char *);
                     73: static int  cvs_resp_rcsdiff   (struct cvsroot *, int, char *);
                     74: static int  cvs_resp_template  (struct cvsroot *, int, char *);
1.14      jfb        75: static int  cvs_resp_copyfile  (struct cvsroot *, int, char *);
1.1       jfb        76:
                     77:
                     78: struct cvs_resphdlr {
                     79:        int (*hdlr)(struct cvsroot *, int, char *);
                     80: } cvs_resp_swtab[CVS_RESP_MAX + 1] = {
                     81:        { NULL              },
                     82:        { cvs_resp_ok       },
                     83:        { cvs_resp_error    },
                     84:        { cvs_resp_validreq },
                     85:        { cvs_resp_newentry },
                     86:        { cvs_resp_newentry },
                     87:        { cvs_resp_cksum    },
1.14      jfb        88:        { cvs_resp_copyfile },
1.1       jfb        89:        { cvs_resp_updated  },
                     90:        { cvs_resp_updated  },
                     91:        { cvs_resp_updated  },  /* 10 */
                     92:        { cvs_resp_updated  },
                     93:        { cvs_resp_updated  },
                     94:        { cvs_resp_rcsdiff  },
                     95:        { cvs_resp_mode     },
                     96:        { cvs_resp_modtime  },
                     97:        { cvs_resp_removed  },
                     98:        { cvs_resp_removed  },
                     99:        { cvs_resp_statdir  },
                    100:        { cvs_resp_statdir  },
                    101:        { cvs_resp_sticky   },  /* 20 */
                    102:        { cvs_resp_sticky   },
                    103:        { cvs_resp_template },
                    104:        { NULL              },
                    105:        { NULL              },
                    106:        { NULL              },
                    107:        { cvs_resp_modxpand },
                    108:        { NULL              },
                    109:        { cvs_resp_m        },
                    110:        { cvs_resp_m        },
                    111:        { cvs_resp_m        },  /* 30 */
                    112:        { cvs_resp_m        },
                    113:        { cvs_resp_m        },
                    114: };
                    115:
                    116:
                    117:
                    118: /*
                    119:  * The MT command uses scoping to tag the data.  Whenever we encouter a '+',
                    120:  * we push the name of the tag on the stack, and we pop it when we encounter
                    121:  * a '-' with the same name.
                    122:  */
                    123:
                    124: static char *cvs_mt_stack[CVS_MTSTK_MAXDEPTH];
                    125: static u_int cvs_mtstk_depth = 0;
                    126:
1.12      jfb       127: static time_t cvs_modtime = CVS_DATE_DMSEC;
1.1       jfb       128:
                    129:
                    130: /* last checksum received */
                    131: char *cvs_fcksum = NULL;
                    132:
                    133: mode_t  cvs_lastmode = 0;
                    134:
                    135: /* hack to receive the remote version without outputting it */
                    136: extern u_int cvs_version_sent;
                    137:
                    138:
                    139: /*
                    140:  * cvs_resp_handle()
                    141:  *
                    142:  * Generic response handler dispatcher.  The handler expects the first line
                    143:  * of the command as single argument.
                    144:  * Returns the return value of the command on success, or -1 on failure.
                    145:  */
                    146: int
                    147: cvs_resp_handle(struct cvsroot *root, char *line)
                    148: {
1.15      jfb       149:        int ret;
1.1       jfb       150:        char *cp, *cmd;
                    151:        struct cvs_resp *resp;
                    152:
                    153:        cmd = line;
                    154:
                    155:        cp = strchr(cmd, ' ');
                    156:        if (cp != NULL)
                    157:                *(cp++) = '\0';
                    158:
                    159:        resp = cvs_resp_getbyname(cmd);
                    160:        if (resp == NULL) {
                    161:                return (-1);
1.11      deraadt   162:        } else if (cvs_resp_swtab[resp->resp_id].hdlr == NULL) {
1.20      jfb       163:                cvs_log(LP_ERR, "handler for `%s' not implemented", cmd);
1.1       jfb       164:                return (-1);
                    165:        }
                    166:
1.15      jfb       167:        ret = (*cvs_resp_swtab[resp->resp_id].hdlr)(root, resp->resp_id, cp);
                    168:
                    169:        if (ret == -1)
                    170:                cvs_log(LP_ERR, "error in handling of `%s' response", cmd);
                    171:
                    172:        return (ret);
1.1       jfb       173: }
                    174:
                    175:
                    176: /*
                    177:  * cvs_resp_validreq()
                    178:  *
                    179:  * Handler for the `Valid-requests' response.  The list of valid requests is
                    180:  * split on spaces and each request's entry in the valid request array is set
                    181:  * to 1 to indicate the validity.
                    182:  * Returns 0 on success, or -1 on failure.
                    183:  */
                    184: static int
                    185: cvs_resp_validreq(struct cvsroot *root, int type, char *line)
                    186: {
                    187:        char *sp, *ep;
                    188:        struct cvs_req *req;
                    189:
                    190:        /* parse the requests */
                    191:        sp = line;
                    192:        do {
                    193:                ep = strchr(sp, ' ');
                    194:                if (ep != NULL)
                    195:                        *ep = '\0';
                    196:
                    197:                req = cvs_req_getbyname(sp);
                    198:                if (req != NULL)
                    199:                        CVS_SETVR(root, req->req_id);
                    200:
                    201:                if (ep != NULL)
                    202:                        sp = ep + 1;
                    203:        } while (ep != NULL);
                    204:
                    205:        return (0);
                    206: }
                    207:
                    208:
                    209: /*
                    210:  * cvs_resp_m()
                    211:  *
                    212:  * Handler for the `M', 'MT', `F' and `E' responses.
                    213:  */
                    214: static int
                    215: cvs_resp_m(struct cvsroot *root, int type, char *line)
                    216: {
                    217:        char *cp;
                    218:        FILE *stream;
                    219:
                    220:        stream = NULL;
                    221:
                    222:        switch (type) {
                    223:        case CVS_RESP_F:
                    224:                fflush(stderr);
                    225:                return (0);
                    226:        case CVS_RESP_M:
                    227:                if (cvs_version_sent) {
                    228:                        /*
                    229:                         * Instead of outputting the line, we save it as the
                    230:                         * remote server's version string.
                    231:                         */
                    232:                        cvs_version_sent = 0;
                    233:                        root->cr_version = strdup(line);
                    234:                        return (0);
                    235:                }
                    236:                stream = stdout;
                    237:                break;
                    238:        case CVS_RESP_E:
                    239:                stream = stderr;
                    240:                break;
                    241:        case CVS_RESP_MT:
                    242:                if (*line == '+') {
                    243:                        if (cvs_mtstk_depth == CVS_MTSTK_MAXDEPTH) {
                    244:                                cvs_log(LP_ERR,
                    245:                                    "MT scope stack has reached max depth");
                    246:                                return (-1);
                    247:                        }
                    248:                        cvs_mt_stack[cvs_mtstk_depth] = strdup(line + 1);
                    249:                        if (cvs_mt_stack[cvs_mtstk_depth] == NULL)
                    250:                                return (-1);
                    251:                        cvs_mtstk_depth++;
1.11      deraadt   252:                } else if (*line == '-') {
1.1       jfb       253:                        if (cvs_mtstk_depth == 0) {
                    254:                                cvs_log(LP_ERR, "MT scope stack underflow");
                    255:                                return (-1);
1.11      deraadt   256:                        } else if (strcmp(line + 1,
1.1       jfb       257:                            cvs_mt_stack[cvs_mtstk_depth - 1]) != 0) {
                    258:                                cvs_log(LP_ERR, "mismatch in MT scope stack");
                    259:                                return (-1);
                    260:                        }
                    261:                        free(cvs_mt_stack[cvs_mtstk_depth--]);
1.11      deraadt   262:                } else {
1.1       jfb       263:                        if (strcmp(line, "newline") == 0)
                    264:                                putc('\n', stdout);
                    265:                        else if (strncmp(line, "fname ", 6) == 0)
                    266:                                printf("%s", line + 6);
                    267:                        else {
                    268:                                /* assume text */
                    269:                                cp = strchr(line, ' ');
                    270:                                if (cp != NULL)
                    271:                                        printf("%s", cp + 1);
                    272:                        }
                    273:                }
                    274:
                    275:                return (0);
                    276:        case CVS_RESP_MBINARY:
                    277:                cvs_log(LP_WARN, "Mbinary not supported in client yet");
                    278:                break;
                    279:        }
                    280:
                    281:        fputs(line, stream);
                    282:        fputc('\n', stream);
                    283:
                    284:        return (0);
                    285: }
                    286:
                    287:
                    288: /*
                    289:  * cvs_resp_ok()
                    290:  *
1.13      tedu      291:  * Handler for the `ok' response.  This handler's job is to
1.1       jfb       292:  */
                    293: static int
                    294: cvs_resp_ok(struct cvsroot *root, int type, char *line)
                    295: {
1.13      tedu      296:
1.1       jfb       297:        return (1);
                    298: }
                    299:
                    300:
                    301: /*
                    302:  * cvs_resp_error()
                    303:  *
1.13      tedu      304:  * Handler for the `error' response.  This handler's job is to
1.31      joris     305:  * show the error message given by the server.
1.1       jfb       306:  */
                    307: static int
                    308: cvs_resp_error(struct cvsroot *root, int type, char *line)
                    309: {
1.33      joris     310:        if (line == NULL)
                    311:                return (1);
1.31      joris     312:
                    313:        /* XXX - GNU cvs sends an empty error message
                    314:         * at the end of the diff command, even for successfull
                    315:         * diff.
                    316:         */
                    317:        if ((strlen(line) == 1) && (*line == ' '))
                    318:                return (1);
1.13      tedu      319:
1.7       jfb       320:        fprintf(stderr, "%s\n", line);
1.1       jfb       321:        return (1);
                    322: }
                    323:
                    324:
                    325: /*
                    326:  * cvs_resp_statdir()
                    327:  *
                    328:  * Handler for the `Clear-static-directory' and `Set-static-directory'
                    329:  * responses.
                    330:  */
                    331: static int
                    332: cvs_resp_statdir(struct cvsroot *root, int type, char *line)
                    333: {
1.24      jfb       334:        int fd, len;
1.1       jfb       335:        char rpath[MAXPATHLEN], statpath[MAXPATHLEN];
1.36      jfb       336:        struct stat dst;
1.1       jfb       337:
1.3       jfb       338:        /* remote directory line */
                    339:        if (cvs_getln(root, rpath, sizeof(rpath)) < 0)
                    340:                return (-1);
1.1       jfb       341:
1.36      jfb       342:        STRIP_SLASH(line);
                    343:
                    344:        /* if the directory doesn't exist, first create it */
                    345:        if ((stat(line, &dst) == -1) && (errno == ENOENT)) {
1.38    ! joris     346:                if ((mkdir(line, 0755) == -1) && (errno != ENOENT)) {
1.36      jfb       347:                        cvs_log(LP_ERRNO, "failed to create %s", line);
                    348:                        return (-1);
                    349:                }
                    350:        }
                    351:
1.24      jfb       352:        len = snprintf(statpath, sizeof(statpath), "%s/%s", line,
1.1       jfb       353:            CVS_PATH_STATICENTRIES);
1.24      jfb       354:        if (len == -1 || len >= (int)sizeof(statpath)) {
                    355:                cvs_log(LP_ERR,
                    356:                    "path overflow for Entries.static specification");
                    357:                return (-1);
                    358:        }
1.1       jfb       359:
1.35      xsa       360:        if (!cvs_noexec) {
                    361:                if ((type == CVS_RESP_CLRSTATDIR) &&
                    362:                    (unlink(statpath) == -1) && (errno != ENOENT)) {
                    363:                        cvs_log(LP_ERRNO, "failed to unlink %s file",
                    364:                            CVS_PATH_STATICENTRIES);
1.1       jfb       365:                        return (-1);
1.35      xsa       366:                } else if (type == CVS_RESP_SETSTATDIR) {
                    367:                        fd = open(statpath, O_CREAT|O_TRUNC|O_WRONLY, 0400);
                    368:                        if (fd == -1) {
                    369:                                cvs_log(LP_ERRNO,
                    370:                                    "failed to set static directory on %s",
                    371:                                    line);
                    372:                                return (-1);
                    373:                        }
                    374:                        (void)close(fd);
                    375:
1.1       jfb       376:                }
                    377:        }
                    378:
                    379:        return (0);
                    380: }
                    381:
                    382: /*
                    383:  * cvs_resp_sticky()
                    384:  *
1.4       jfb       385:  * Handler for the `Clear-sticky' and `Set-sticky' responses.  If the
                    386:  * specified directory doesn't exist, we create it and attach it to the
                    387:  * global file structure.
1.1       jfb       388:  */
                    389: static int
                    390: cvs_resp_sticky(struct cvsroot *root, int type, char *line)
                    391: {
1.5       jfb       392:        char buf[MAXPATHLEN], subdir[MAXPATHLEN], *file;
                    393:        struct cvs_ent *ent;
1.4       jfb       394:        CVSFILE *cf, *sdir;
1.21      jfb       395:        CVSENTRIES *entf;
1.4       jfb       396:
                    397:        /* get the remote path */
1.5       jfb       398:        if (cvs_getln(root, buf, sizeof(buf)) < 0)
1.4       jfb       399:                return (-1);
1.1       jfb       400:
1.4       jfb       401:        STRIP_SLASH(line);
1.36      jfb       402:
1.4       jfb       403:        cvs_splitpath(line, subdir, sizeof(subdir), &file);
                    404:        sdir = cvs_file_find(cvs_files, subdir);
                    405:        if (sdir == NULL) {
                    406:                cvs_log(LP_ERR, "failed to find %s", subdir);
                    407:                return (-1);
                    408:        }
1.1       jfb       409:
1.4       jfb       410:        cf = cvs_file_find(sdir, file);
                    411:        if (cf == NULL) {
1.1       jfb       412:                /* attempt to create it */
1.8       jfb       413:                cf = cvs_file_create(sdir, line, DT_DIR, 0755);
1.38    ! joris     414:                if (cf == NULL) {
        !           415:                        printf("yeah its this man\n");
1.4       jfb       416:                        return (-1);
1.38    ! joris     417:                }
1.28      jfb       418:                cf->cf_repo = strdup(line);
                    419:                if (cf->cf_repo == NULL) {
1.19      jfb       420:                        cvs_log(LP_ERRNO, "failed to duplicate `%s'", line);
                    421:                        cvs_file_free(cf);
                    422:                        return (-1);
                    423:                }
1.28      jfb       424:                cf->cf_root = root;
1.4       jfb       425:                root->cr_ref++;
1.1       jfb       426:
1.22      joris     427:                if (cvs_file_attach(sdir, cf) < 0) {
                    428:                        cvs_file_free(cf);
                    429:                        return (-1);
                    430:                }
1.5       jfb       431:
                    432:                /* add a directory entry to the parent */
1.21      jfb       433:                if ((entf = cvs_ent_open(subdir, O_WRONLY)) != NULL) {
1.8       jfb       434:                        snprintf(buf, sizeof(buf), "D/%s////",
                    435:                            CVS_FILE_NAME(cf));
1.5       jfb       436:                        ent = cvs_ent_parse(buf);
                    437:                        if (ent == NULL)
                    438:                                cvs_log(LP_ERR,
                    439:                                    "failed to create directory entry");
                    440:                        else
1.21      jfb       441:                                cvs_ent_add(entf, ent);
                    442:                        cvs_ent_close(entf);
1.5       jfb       443:                }
1.1       jfb       444:        }
                    445:
1.4       jfb       446:        if (type == CVS_RESP_CLRSTICKY)
1.28      jfb       447:                cf->cf_flags &= ~CVS_DIRF_STICKY;
1.4       jfb       448:        else if (type == CVS_RESP_SETSTICKY)
1.28      jfb       449:                cf->cf_flags |= CVS_DIRF_STICKY;
1.1       jfb       450:
                    451:        return (0);
                    452: }
                    453:
                    454:
                    455: /*
                    456:  * cvs_resp_newentry()
                    457:  *
                    458:  * Handler for the `New-entry' response and `Checked-in' responses.
1.9       jfb       459:  * In the case of `New-entry', we expect the entry line
1.1       jfb       460:  */
                    461: static int
                    462: cvs_resp_newentry(struct cvsroot *root, int type, char *line)
                    463: {
                    464:        char entbuf[128];
1.9       jfb       465:        struct cvs_ent *ent;
1.1       jfb       466:        CVSENTRIES *entfile;
                    467:
                    468:        /* get the remote path */
                    469:        cvs_getln(root, entbuf, sizeof(entbuf));
                    470:
                    471:        /* get the new Entries line */
                    472:        if (cvs_getln(root, entbuf, sizeof(entbuf)) < 0)
                    473:                return (-1);
                    474:
                    475:        entfile = cvs_ent_open(line, O_WRONLY);
                    476:        if (entfile == NULL)
                    477:                return (-1);
1.9       jfb       478:        if (type == CVS_RESP_NEWENTRY) {
                    479:                cvs_ent_addln(entfile, entbuf);
1.11      deraadt   480:        } else if (type == CVS_RESP_CHECKEDIN) {
1.9       jfb       481:                ent = cvs_ent_parse(entbuf);
                    482:                if (ent == NULL) {
                    483:                        cvs_log(LP_ERR, "failed to parse entry");
                    484:                        cvs_ent_close(entfile);
                    485:                        return (-1);
                    486:                }
                    487:
                    488:                /* timestamp it to now */
                    489:                ent->ce_mtime = time(&(ent->ce_mtime));
                    490:
                    491:                /* replace the current entry with the one we just received */
1.26      xsa       492:                (void)cvs_ent_remove(entfile, ent->ce_name);
1.9       jfb       493:
                    494:                cvs_ent_add(entfile, ent);
                    495:        }
1.1       jfb       496:        cvs_ent_close(entfile);
                    497:
                    498:        return (0);
                    499: }
                    500:
                    501:
                    502: /*
                    503:  * cvs_resp_cksum()
                    504:  *
                    505:  * Handler for the `Checksum' response.  We store the checksum received for
                    506:  * the next file in a dynamically-allocated buffer pointed to by <cvs_fcksum>.
                    507:  * Upon next file reception, the handler checks to see if there is a stored
                    508:  * checksum.
                    509:  * The file handler must make sure that the checksums match and free the
                    510:  * checksum buffer once it's done to indicate there is no further checksum.
                    511:  */
                    512: static int
                    513: cvs_resp_cksum(struct cvsroot *root, int type, char *line)
                    514: {
                    515:        if (cvs_fcksum != NULL) {
                    516:                cvs_log(LP_WARN, "unused checksum");
                    517:                free(cvs_fcksum);
                    518:        }
                    519:
                    520:        cvs_fcksum = strdup(line);
                    521:        if (cvs_fcksum == NULL) {
                    522:                cvs_log(LP_ERRNO, "failed to copy checksum string");
1.14      jfb       523:                return (-1);
                    524:        }
                    525:
                    526:        return (0);
                    527: }
                    528:
                    529:
                    530: /*
                    531:  * cvs_resp_copyfile()
                    532:  *
                    533:  * Handler for the `Copy-file' response, which is used to copy the contents
                    534:  * of a file to another file for which the name is provided.  The CVS protocol
                    535:  * documentation states that this response is only used prior to a `Merged'
                    536:  * response to create a backup of the file.
                    537:  */
                    538: static int
                    539: cvs_resp_copyfile(struct cvsroot *root, int type, char *line)
                    540: {
1.24      jfb       541:        int len;
1.16      jfb       542:        char path[MAXPATHLEN], newpath[MAXPATHLEN], newname[MAXNAMLEN], *file;
1.14      jfb       543:
1.16      jfb       544:        /* read the remote path of the file to copy and its new name */
                    545:        if ((cvs_getln(root, path, sizeof(path)) < 0) ||
                    546:            (cvs_getln(root, newname, sizeof(newname)) < 0))
1.14      jfb       547:                return (-1);
                    548:
1.16      jfb       549:        if ((file = basename(path)) == NULL) {
                    550:                cvs_log(LP_ERR, "no base file name in Copy-file path");
                    551:                return (-1);
                    552:        }
                    553:
1.24      jfb       554:        len = snprintf(path, sizeof(path), "%s%s", line, file);
                    555:        if (len == -1 || len >= (int)sizeof(path)) {
                    556:                cvs_log(LP_ERR, "source path overflow in Copy-file response");
                    557:                return (-1);
                    558:        }
                    559:        len = snprintf(newpath, sizeof(newpath), "%s%s", line, newname);
                    560:        if (len == -1 || len >= (int)sizeof(path)) {
                    561:                cvs_log(LP_ERR,
                    562:                    "destination path overflow in Copy-file response");
                    563:                return (-1);
                    564:        }
1.16      jfb       565:
                    566:        if (rename(path, newpath) == -1) {
1.27      xsa       567:                cvs_log(LP_ERRNO, "failed to rename %s to %s", path, newpath);
1.1       jfb       568:                return (-1);
                    569:        }
                    570:
                    571:        return (0);
                    572: }
                    573:
                    574:
                    575: /*
                    576:  * cvs_resp_modtime()
                    577:  *
                    578:  * Handler for the `Mod-time' file update modifying response.  The timestamp
                    579:  * given is used to set the last modification time on the next file that
                    580:  * will be received.
                    581:  */
                    582: static int
                    583: cvs_resp_modtime(struct cvsroot *root, int type, char *line)
                    584: {
1.34      jfb       585:        cvs_modtime = cvs_date_parse(line);
1.1       jfb       586:        return (0);
                    587: }
                    588:
                    589:
                    590: /*
                    591:  * cvs_resp_updated()
                    592:  *
1.4       jfb       593:  * Handler for the `Updated', `Update-existing', `Created', `Merged' and
                    594:  * `Patched' responses, which all have a very similar format.
1.1       jfb       595:  */
                    596: static int
                    597: cvs_resp_updated(struct cvsroot *root, int type, char *line)
                    598: {
1.17      jfb       599:        int ret;
1.1       jfb       600:        mode_t fmode;
1.4       jfb       601:        char path[MAXPATHLEN], cksum_buf[CVS_CKSUM_LEN];
1.1       jfb       602:        BUF *fbuf;
1.12      jfb       603:        CVSENTRIES *entfile;
1.1       jfb       604:        struct cvs_ent *ep;
1.2       jfb       605:        struct timeval tv[2];
1.1       jfb       606:
1.4       jfb       607:        STRIP_SLASH(line);
                    608:
1.1       jfb       609:        /* read the remote path of the file */
1.4       jfb       610:        if (cvs_getln(root, path, sizeof(path)) < 0)
                    611:                return (-1);
1.1       jfb       612:
                    613:        /* read the new entry */
1.4       jfb       614:        if (cvs_getln(root, path, sizeof(path)) < 0)
1.1       jfb       615:                return (-1);
1.4       jfb       616:
                    617:        if ((ep = cvs_ent_parse(path)) == NULL)
                    618:                return (-1);
1.24      jfb       619:        ret = snprintf(path, sizeof(path), "%s/%s", line, ep->ce_name);
                    620:        if (ret == -1 || ret >= (int)sizeof(path)) {
                    621:                cvs_log(LP_ERR, "Entries path overflow in response");
                    622:                return (-1);
                    623:        }
1.25      joris     624:        ret = 0;
1.1       jfb       625:
1.12      jfb       626:        entfile = cvs_ent_open(line, O_WRONLY);
                    627:        if (entfile == NULL) {
                    628:                cvs_ent_free(ep);
                    629:                return (-1);
                    630:        }
                    631:
1.15      jfb       632:        if (cvs_modtime != CVS_DATE_DMSEC) {
1.4       jfb       633:                ep->ce_mtime = cvs_modtime;
1.15      jfb       634:        } else
                    635:                ep->ce_mtime = time(&(ep->ce_mtime));
                    636:
                    637:        if ((type == CVS_RESP_UPDEXIST) || (type == CVS_RESP_UPDATED) ||
1.18      jfb       638:            (type == CVS_RESP_MERGED) || (type == CVS_RESP_CREATED)) {
1.30      joris     639:                if ((cvs_ent_remove(entfile, ep->ce_name) < 0) &&
                    640:                    (type != CVS_RESP_CREATED)) {
                    641:                        cvs_log(LP_WARN, "failed to remove entry for '%s`",
1.12      jfb       642:                            ep->ce_name);
1.30      joris     643:                }
1.15      jfb       644:        }
1.12      jfb       645:
1.15      jfb       646:        if (cvs_ent_add(entfile, ep) < 0) {
                    647:                cvs_ent_free(ep);
                    648:                cvs_ent_close(entfile);
                    649:                return (-1);
1.1       jfb       650:        }
1.15      jfb       651:
                    652:        cvs_ent_close(entfile);
1.1       jfb       653:
1.17      jfb       654:        if ((fbuf = cvs_recvfile(root, &fmode)) == NULL)
                    655:                return (-1);
                    656:        if (cvs_buf_write(fbuf, path, fmode) < 0) {
                    657:                cvs_buf_free(fbuf);
1.1       jfb       658:                return (-1);
1.17      jfb       659:        }
                    660:        cvs_buf_free(fbuf);
1.2       jfb       661:
1.12      jfb       662:        if (cvs_modtime != CVS_DATE_DMSEC) {
                    663:                tv[0].tv_sec = (long)cvs_modtime;
                    664:                tv[0].tv_usec = 0;
                    665:                tv[1].tv_sec = (long)cvs_modtime;
                    666:                tv[1].tv_usec = 0;
                    667:                if (utimes(path, tv) == -1)
                    668:                        cvs_log(LP_ERRNO, "failed to set file timestamps");
                    669:        }
1.34      jfb       670:
                    671:        /* invalidate last received timestamp */
                    672:        cvs_modtime = CVS_DATE_DMSEC;
1.1       jfb       673:
                    674:        /* now see if there is a checksum */
                    675:        if (cvs_fcksum != NULL) {
1.17      jfb       676:                if (cvs_cksum(path, cksum_buf, sizeof(cksum_buf)) < 0)
                    677:                        ret = -1;
                    678:                else if (strcmp(cksum_buf, cvs_fcksum) != 0) {
1.1       jfb       679:                        cvs_log(LP_ERR, "checksum error on received file");
                    680:                        (void)unlink(line);
1.17      jfb       681:                        ret = -1;
1.1       jfb       682:                }
                    683:
                    684:                free(cvs_fcksum);
                    685:                cvs_fcksum = NULL;
                    686:        }
                    687:
1.17      jfb       688:        return (ret);
1.1       jfb       689: }
                    690:
                    691:
                    692: /*
                    693:  * cvs_resp_removed()
                    694:  *
1.10      jfb       695:  * Handler for the `Removed' and `Remove-entry' responses.  The `Removed'
                    696:  * response is received when both a file and its entry need to be removed from
                    697:  * the local copy.  The `Remove-entry' is received in cases where the file is
                    698:  * already gone but there is still an entry to remove in the Entries file.
1.1       jfb       699:  */
                    700: static int
                    701: cvs_resp_removed(struct cvsroot *root, int type, char *line)
                    702: {
1.29      joris     703:        int l;
                    704:        char buf[MAXPATHLEN], base[MAXPATHLEN], fpath[MAXPATHLEN], *file;
1.1       jfb       705:        CVSENTRIES *ef;
                    706:
1.29      joris     707:        if (cvs_getln(root, buf, sizeof(buf)) < 0)
                    708:                return (-1);
                    709:
                    710:        cvs_splitpath(buf, base, sizeof(base), &file);
                    711:        l = snprintf(fpath, sizeof(fpath), "%s/%s", line, file);
                    712:        if (l == -1 || l >= (int)sizeof(fpath)) {
                    713:                errno = ENAMETOOLONG;
                    714:                cvs_log(LP_ERRNO, "%s", fpath);
                    715:                return (-1);
                    716:        }
                    717:
                    718:        ef = cvs_ent_open(line, O_RDWR);
1.10      jfb       719:        if (ef == NULL) {
                    720:                cvs_log(LP_ERR, "error handling `Removed' response");
                    721:                if (type == CVS_RESP_RMENTRY)
                    722:                        return (-1);
                    723:        } else {
                    724:                (void)cvs_ent_remove(ef, file);
                    725:                cvs_ent_close(ef);
                    726:        }
                    727:
1.32      joris     728:        if ((type == CVS_RESP_REMOVED) && ((unlink(fpath) == -1) &&
                    729:            errno != ENOENT)) {
1.29      joris     730:                cvs_log(LP_ERRNO, "failed to unlink `%s'", file);
1.1       jfb       731:                return (-1);
1.10      jfb       732:        }
1.1       jfb       733:
                    734:        return (0);
                    735: }
                    736:
                    737:
                    738: /*
                    739:  * cvs_resp_mode()
                    740:  *
                    741:  * Handler for the `Mode' response.
                    742:  */
                    743: static int
                    744: cvs_resp_mode(struct cvsroot *root, int type, char *line)
                    745: {
                    746:        if (cvs_strtomode(line, &cvs_lastmode) < 0) {
1.12      jfb       747:                cvs_log(LP_ERR, "error handling Mode response");
1.1       jfb       748:                return (-1);
                    749:        }
                    750:        return (0);
                    751: }
                    752:
                    753:
                    754: /*
                    755:  * cvs_resp_modxpand()
                    756:  *
                    757:  * Handler for the `Module-expansion' response.
                    758:  */
                    759: static int
                    760: cvs_resp_modxpand(struct cvsroot *root, int type, char *line)
                    761: {
                    762:        return (0);
                    763: }
                    764:
                    765: /*
                    766:  * cvs_resp_rcsdiff()
                    767:  *
                    768:  * Handler for the `Rcs-diff' response.
                    769:  */
                    770: static int
                    771: cvs_resp_rcsdiff(struct cvsroot *root, int type, char *line)
                    772: {
1.24      jfb       773:        int len;
1.1       jfb       774:        char file[MAXPATHLEN], buf[MAXPATHLEN], cksum_buf[CVS_CKSUM_LEN];
                    775:        char *fname, *orig, *patch;
                    776:        mode_t fmode;
                    777:        BUF *res, *fcont, *patchbuf;
                    778:        CVSENTRIES *entf;
                    779:        struct cvs_ent *ent;
                    780:
                    781:        /* get remote path and build local path of file to be patched */
                    782:        cvs_getln(root, buf, sizeof(buf));
                    783:        fname = strrchr(buf, '/');
                    784:        if (fname == NULL)
                    785:                fname = buf;
1.24      jfb       786:        len = snprintf(file, sizeof(file), "%s%s", line, fname);
                    787:        if (len == -1 || len >= (int)sizeof(file)) {
                    788:                cvs_log(LP_ERR, "path overflow in Rcs-diff response");
                    789:                return (-1);
                    790:        }
1.1       jfb       791:
                    792:        /* get updated entry fields */
                    793:        cvs_getln(root, buf, sizeof(buf));
                    794:        ent = cvs_ent_parse(buf);
1.13      tedu      795:        if (ent == NULL)
1.1       jfb       796:                return (-1);
                    797:
                    798:        patchbuf = cvs_recvfile(root, &fmode);
                    799:        fcont = cvs_buf_load(file, BUF_AUTOEXT);
                    800:        if (fcont == NULL)
                    801:                return (-1);
                    802:
                    803:        cvs_buf_putc(patchbuf, '\0');
                    804:        cvs_buf_putc(fcont, '\0');
                    805:        orig = cvs_buf_release(fcont);
                    806:        patch = cvs_buf_release(patchbuf);
                    807:
                    808:        res = rcs_patch(orig, patch);
                    809:        if (res == NULL)
                    810:                return (-1);
                    811:
                    812:        cvs_buf_write(res, file, fmode);
                    813:
                    814:        /* now see if there is a checksum */
                    815:        if (cvs_fcksum != NULL) {
                    816:                if (cvs_cksum(file, cksum_buf, sizeof(cksum_buf)) < 0) {
                    817:                }
                    818:
                    819:                if (strcmp(cksum_buf, cvs_fcksum) != 0) {
                    820:                        cvs_log(LP_ERR, "checksum error on received file");
                    821:                        (void)unlink(file);
                    822:                }
                    823:
                    824:                free(cvs_fcksum);
                    825:                cvs_fcksum = NULL;
                    826:        }
                    827:
                    828:        /* update revision in entries */
                    829:        entf = cvs_ent_open(line, O_WRONLY);
                    830:        if (entf == NULL)
                    831:                return (-1);
                    832:
                    833:        cvs_ent_close(entf);
                    834:
                    835:        return (0);
                    836: }
                    837:
                    838:
                    839: /*
                    840:  * cvs_resp_template()
                    841:  *
                    842:  * Handler for the `Template' response.
                    843:  */
                    844: static int
                    845: cvs_resp_template(struct cvsroot *root, int type, char *line)
                    846: {
                    847:        mode_t mode;
                    848:        BUF *tmpl;
                    849:
                    850:        tmpl = cvs_recvfile(root, &mode);
                    851:        if (tmpl == NULL)
                    852:                return (-1);
                    853:
                    854:        return (0);
                    855: }