| | 1 | #ifndef lint |
| | 2 | static char *sccsid = "@(#)server.c 4.16 (Berkeley) 84/03/14"; |
| | 3 | #endif |
| | 4 | |
| | 5 | #include "defs.h" |
| | 6 | |
| | 7 | #define ack() (void) write(rem, "\0\n", 2) |
| | 8 | #define err() (void) write(rem, "\1\n", 2) |
| | 9 | |
| | 10 | char buf[BUFSIZ]; /* general purpose buffer */ |
| | 11 | char target[BUFSIZ]; /* target/source directory name */ |
| | 12 | char *tp; /* pointer to end of target name */ |
| | 13 | int catname; /* cat name to target name */ |
| | 14 | char *stp[32]; /* stack of saved tp's for directories */ |
| | 15 | int oumask; /* old umask for creating files */ |
| | 16 | |
| | 17 | extern FILE *lfp; /* log file for mailing changes */ |
| | 18 | |
| | 19 | int cleanup(); |
| | 20 | |
| | 21 | /* |
| | 22 | * Server routine to read requests and process them. |
| | 23 | * Commands are: |
| | 24 | * Tname - Transmit file if out of date |
| | 25 | * Vname - Verify if file out of date or not |
| | 26 | * Qname - Query if file exists. Return mtime & size if it does. |
| | 27 | */ |
| | 28 | server() |
| | 29 | { |
| | 30 | char cmdbuf[BUFSIZ]; |
| | 31 | register char *cp; |
| | 32 | |
| | 33 | signal(SIGHUP, cleanup); |
| | 34 | signal(SIGINT, cleanup); |
| | 35 | signal(SIGQUIT, cleanup); |
| | 36 | signal(SIGTERM, cleanup); |
| | 37 | signal(SIGPIPE, cleanup); |
| | 38 | |
| | 39 | rem = 0; |
| | 40 | oumask = umask(0); |
| | 41 | (void) sprintf(buf, "V%d\n", VERSION); |
| | 42 | (void) write(rem, buf, strlen(buf)); |
| | 43 | |
| | 44 | for (;;) { |
| | 45 | cp = cmdbuf; |
| | 46 | if (read(rem, cp, 1) <= 0) |
| | 47 | return; |
| | 48 | if (*cp++ == '\n') { |
| | 49 | error("server: expected control record\n"); |
| | 50 | continue; |
| | 51 | } |
| | 52 | do { |
| | 53 | if (read(rem, cp, 1) != 1) |
| | 54 | cleanup(); |
| | 55 | } while (*cp++ != '\n' && cp < &cmdbuf[BUFSIZ]); |
| | 56 | *--cp = '\0'; |
| | 57 | cp = cmdbuf; |
| | 58 | switch (*cp++) { |
| | 59 | case 'T': /* init target file/directory name */ |
| | 60 | catname = 1; /* target should be directory */ |
| | 61 | goto dotarget; |
| | 62 | |
| | 63 | case 't': /* init target file/directory name */ |
| | 64 | catname = 0; |
| | 65 | dotarget: |
| | 66 | if (exptilde(target, cp) == NULL) |
| | 67 | continue; |
| | 68 | tp = target; |
| | 69 | while (*tp) |
| | 70 | tp++; |
| | 71 | ack(); |
| | 72 | continue; |
| | 73 | |
| | 74 | case 'R': /* Receive. Transfer file. */ |
| | 75 | recvf(cp, 0); |
| | 76 | continue; |
| | 77 | |
| | 78 | case 'D': /* Directory. Transfer file. */ |
| | 79 | recvf(cp, 1); |
| | 80 | continue; |
| | 81 | |
| | 82 | case 'E': /* End. (of directory) */ |
| | 83 | *tp = '\0'; |
| | 84 | if (catname <= 0) { |
| | 85 | error("server: too many 'E's\n"); |
| | 86 | continue; |
| | 87 | } |
| | 88 | tp = stp[--catname]; |
| | 89 | *tp = '\0'; |
| | 90 | ack(); |
| | 91 | continue; |
| | 92 | |
| | 93 | case 'C': /* Clean. Cleanup a directory */ |
| | 94 | clean(cp); |
| | 95 | continue; |
| | 96 | |
| | 97 | case 'Q': /* Query. Does the file/directory exist? */ |
| | 98 | query(cp); |
| | 99 | continue; |
| | 100 | |
| | 101 | case 'S': /* Special. Execute commands */ |
| | 102 | dospecial(cp); |
| | 103 | continue; |
| | 104 | |
| | 105 | #ifdef notdef |
| | 106 | /* |
| | 107 | * These entries are reserved but not currently used. |
| | 108 | * The intent is to allow remote hosts to have master copies. |
| | 109 | * Currently, only the host rdist runs on can have masters. |
| | 110 | */ |
| | 111 | case 'X': /* start a new list of files to exclude */ |
| | 112 | except = bp = NULL; |
| | 113 | case 'x': /* add name to list of files to exclude */ |
| | 114 | if (*cp == '\0') { |
| | 115 | ack(); |
| | 116 | continue; |
| | 117 | } |
| | 118 | if (*cp == '~') { |
| | 119 | if (exptilde(buf, cp) == NULL) |
| | 120 | continue; |
| | 121 | cp = buf; |
| | 122 | } |
| | 123 | if (bp == NULL) |
| | 124 | except = bp = expand(makeblock(NAME, cp), E_VARS); |
| | 125 | else |
| | 126 | bp->b_next = expand(makeblock(NAME, cp), E_VARS); |
| | 127 | while (bp->b_next != NULL) |
| | 128 | bp = bp->b_next; |
| | 129 | ack(); |
| | 130 | continue; |
| | 131 | |
| | 132 | case 'I': /* Install. Transfer file if out of date. */ |
| | 133 | opts = 0; |
| | 134 | while (*cp >= '0' && *cp <= '7') |
| | 135 | opts = (opts << 3) | (*cp++ - '0'); |
| | 136 | if (*cp++ != ' ') { |
| | 137 | error("server: options not delimited\n"); |
| | 138 | return; |
| | 139 | } |
| | 140 | install(cp, opts); |
| | 141 | continue; |
| | 142 | |
| | 143 | case 'L': /* Log. save message in log file */ |
| | 144 | log(lfp, cp); |
| | 145 | continue; |
| | 146 | #endif |
| | 147 | |
| | 148 | case '\1': |
| | 149 | nerrs++; |
| | 150 | continue; |
| | 151 | |
| | 152 | case '\2': |
| | 153 | return; |
| | 154 | |
| | 155 | default: |
| | 156 | error("server: unknown command '%s'\n", cp); |
| | 157 | case '\0': |
| | 158 | continue; |
| | 159 | } |
| | 160 | } |
| | 161 | } |
| | 162 | |
| | 163 | /* |
| | 164 | * Update the file(s) if they are different. |
| | 165 | * destdir = 1 if destination should be a directory |
| | 166 | * (i.e., more than one source is being copied to the same destination). |
| | 167 | */ |
| | 168 | install(src, dest, destdir, opts) |
| | 169 | char *src, *dest; |
| | 170 | int destdir, opts; |
| | 171 | { |
| | 172 | char *rname; |
| | 173 | |
| | 174 | if (dest == NULL) { |
| | 175 | opts &= ~WHOLE; /* WHOLE mode only useful if renaming */ |
| | 176 | dest = src; |
| | 177 | } |
| | 178 | |
| | 179 | if (nflag || debug) { |
| | 180 | printf("%s%s%s%s%s %s %s\n", opts & VERIFY ? "verify":"install", |
| | 181 | opts & WHOLE ? " -w" : "", |
| | 182 | opts & YOUNGER ? " -y" : "", |
| | 183 | opts & COMPARE ? " -b" : "", |
| | 184 | opts & REMOVE ? " -R" : "", src, dest); |
| | 185 | if (nflag) |
| | 186 | return; |
| | 187 | } |
| | 188 | |
| | 189 | rname = exptilde(target, src); |
| | 190 | if (rname == NULL) |
| | 191 | return; |
| | 192 | tp = target; |
| | 193 | while (*tp) |
| | 194 | tp++; |
| | 195 | /* |
| | 196 | * If we are renaming a directory and we want to preserve |
| | 197 | * the directory heirarchy (-w), we must strip off the leading |
| | 198 | * directory name and preserve the rest. |
| | 199 | */ |
| | 200 | if (opts & WHOLE) { |
| | 201 | while (*rname == '/') |
| | 202 | rname++; |
| | 203 | destdir = 1; |
| | 204 | } else { |
| | 205 | rname = rindex(target, '/'); |
| | 206 | if (rname == NULL) |
| | 207 | rname = target; |
| | 208 | else |
| | 209 | rname++; |
| | 210 | } |
| | 211 | if (debug) |
| | 212 | printf("target = %s, rname = %s\n", target, rname); |
| | 213 | /* |
| | 214 | * Pass the destination file/directory name to remote. |
| | 215 | */ |
| | 216 | (void) sprintf(buf, "%c%s\n", destdir ? 'T' : 't', dest); |
| | 217 | if (debug) |
| | 218 | printf("buf = %s", buf); |
| | 219 | (void) write(rem, buf, strlen(buf)); |
| | 220 | if (response() < 0) |
| | 221 | return; |
| | 222 | |
| | 223 | sendf(rname, opts); |
| | 224 | } |
| | 225 | |
| | 226 | /* |
| | 227 | * Transfer the file or directory in target[]. |
| | 228 | * rname is the name of the file on the remote host. |
| | 229 | */ |
| | 230 | sendf(rname, opts) |
| | 231 | char *rname; |
| | 232 | int opts; |
| | 233 | { |
| | 234 | register struct subcmd *sc; |
| | 235 | struct stat stb; |
| | 236 | int sizerr, f, u; |
| | 237 | off_t i; |
| | 238 | extern struct subcmd *special; |
| | 239 | |
| | 240 | if (debug) |
| | 241 | printf("sendf(%s, %x)\n", rname, opts); |
| | 242 | |
| | 243 | if (inlist(except, target)) |
| | 244 | return; |
| | 245 | if (access(target, 4) < 0 || lstat(target, &stb) < 0) { |
| | 246 | error("%s: %s\n", target, sys_errlist[errno]); |
| | 247 | return; |
| | 248 | } |
| | 249 | if ((u = update(rname, opts, &stb)) == 0) |
| | 250 | return; |
| | 251 | |
| | 252 | if (pw == NULL || pw->pw_uid != stb.st_uid) |
| | 253 | if ((pw = getpwuid(stb.st_uid)) == NULL) { |
| | 254 | error("%s: no password entry for uid %d\n", target, |
| | 255 | stb.st_uid); |
| | 256 | return; |
| | 257 | } |
| | 258 | if (gr == NULL || gr->gr_gid != stb.st_gid) |
| | 259 | if ((gr = getgrgid(stb.st_gid)) == NULL) { |
| | 260 | error("%s: no name for group %d\n", target, stb.st_gid); |
| | 261 | return; |
| | 262 | } |
| | 263 | if (u == 1) { |
| | 264 | if (opts & VERIFY) { |
| | 265 | log(lfp, "need to install: %s\n", target); |
| | 266 | goto dospecial; |
| | 267 | } |
| | 268 | log(lfp, "installing: %s\n", target); |
| | 269 | opts &= ~(COMPARE|REMOVE); |
| | 270 | } |
| | 271 | |
| | 272 | switch (stb.st_mode & S_IFMT) { |
| | 273 | case S_IFREG: |
| | 274 | break; |
| | 275 | |
| | 276 | case S_IFLNK: |
| | 277 | error("%s: cannot install soft links - use 'special'\n", target); |
| | 278 | return; |
| | 279 | |
| | 280 | case S_IFDIR: |
| | 281 | rsendf(rname, opts, &stb, pw->pw_name, gr->gr_name); |
| | 282 | return; |
| | 283 | |
| | 284 | default: |
| | 285 | error("%s: not a plain file\n", target); |
| | 286 | return; |
| | 287 | } |
| | 288 | |
| | 289 | if (u == 2) { |
| | 290 | if (opts & VERIFY) { |
| | 291 | log(lfp, "need to update: %s\n", target); |
| | 292 | goto dospecial; |
| | 293 | } |
| | 294 | log(lfp, "updating: %s\n", target); |
| | 295 | } |
| | 296 | if (stb.st_nlink != 1) |
| | 297 | log(lfp, "%s: Warning: more than one hard link\n", target); |
| | 298 | |
| | 299 | if ((f = open(target, 0)) < 0) { |
| | 300 | error("%s: %s\n", target, sys_errlist[errno]); |
| | 301 | return; |
| | 302 | } |
| | 303 | (void) sprintf(buf, "R%o %04o %D %D %s %s %s\n", opts, |
| | 304 | stb.st_mode & 07777, stb.st_size, stb.st_mtime, |
| | 305 | pw->pw_name, gr->gr_name, rname); |
| | 306 | if (debug) |
| | 307 | printf("buf = %s", buf); |
| | 308 | (void) write(rem, buf, strlen(buf)); |
| | 309 | if (response() < 0) { |
| | 310 | (void) close(f); |
| | 311 | return; |
| | 312 | } |
| | 313 | sizerr = 0; |
| | 314 | for (i = 0; i < stb.st_size; i += BUFSIZ) { |
| | 315 | int amt = BUFSIZ; |
| | 316 | if (i + amt > stb.st_size) |
| | 317 | amt = stb.st_size - i; |
| | 318 | if (sizerr == 0 && read(f, buf, amt) != amt) |
| | 319 | sizerr = 1; |
| | 320 | (void) write(rem, buf, amt); |
| | 321 | } |
| | 322 | (void) close(f); |
| | 323 | if (sizerr) { |
| | 324 | error("%s: file changed size\n", target); |
| | 325 | err(); |
| | 326 | } else |
| | 327 | ack(); |
| | 328 | if (response() == 0 && (opts & COMPARE)) |
| | 329 | return; |
| | 330 | dospecial: |
| | 331 | for (sc = special; sc != NULL; sc = sc->sc_next) { |
| | 332 | if (sc->sc_type != SPECIAL) |
| | 333 | continue; |
| | 334 | if (!inlist(sc->sc_args, target)) |
| | 335 | continue; |
| | 336 | log(lfp, "special \"%s\"\n", sc->sc_name); |
| | 337 | if (opts & VERIFY) |
| | 338 | continue; |
| | 339 | (void) sprintf(buf, "S%s\n", sc->sc_name); |
| | 340 | if (debug) |
| | 341 | printf("buf = %s", buf); |
| | 342 | (void) write(rem, buf, strlen(buf)); |
| | 343 | while (response() > 0) |
| | 344 | ; |
| | 345 | } |
| | 346 | } |
| | 347 | |
| | 348 | rsendf(rname, opts, st, owner, group) |
| | 349 | char *rname; |
| | 350 | int opts; |
| | 351 | struct stat *st; |
| | 352 | char *owner, *group; |
| | 353 | { |
| | 354 | DIR *d; |
| | 355 | struct direct *dp; |
| | 356 | char *otp, *cp; |
| | 357 | int len; |
| | 358 | |
| | 359 | if (debug) |
| | 360 | printf("rsendf(%s, %x, %x, %s, %s)\n", rname, opts, st, |
| | 361 | owner, group); |
| | 362 | |
| | 363 | if ((d = opendir(target)) == NULL) { |
| | 364 | error("%s: %s\n", target, sys_errlist[errno]); |
| | 365 | return; |
| | 366 | } |
| | 367 | (void) sprintf(buf, "D%o %04o 0 0 %s %s %s\n", opts, |
| | 368 | st->st_mode & 0777, owner, group, rname); |
| | 369 | if (debug) |
| | 370 | printf("buf = %s", buf); |
| | 371 | (void) write(rem, buf, strlen(buf)); |
| | 372 | if (response() < 0) { |
| | 373 | closedir(d); |
| | 374 | return; |
| | 375 | } |
| | 376 | |
| | 377 | if (opts & REMOVE) |
| | 378 | rmchk(opts); |
| | 379 | |
| | 380 | otp = tp; |
| | 381 | len = tp - target; |
| | 382 | while (dp = readdir(d)) { |
| | 383 | if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) |
| | 384 | continue; |
| | 385 | if (len + 1 + strlen(dp->d_name) >= BUFSIZ - 1) { |
| | 386 | error("%s/%s: Name too long\n", target, dp->d_name); |
| | 387 | continue; |
| | 388 | } |
| | 389 | tp = otp; |
| | 390 | *tp++ = '/'; |
| | 391 | cp = dp->d_name; |
| | 392 | while (*tp++ = *cp++) |
| | 393 | ; |
| | 394 | tp--; |
| | 395 | sendf(dp->d_name, opts); |
| | 396 | } |
| | 397 | closedir(d); |
| | 398 | (void) write(rem, "E\n", 2); |
| | 399 | (void) response(); |
| | 400 | tp = otp; |
| | 401 | *tp = '\0'; |
| | 402 | } |
| | 403 | |
| | 404 | /* |
| | 405 | * Check to see if file needs to be updated on the remote machine. |
| | 406 | * Returns 0 if no update, 1 if remote doesn't exist, 2 if out of date |
| | 407 | * and 3 if comparing binaries to determine if out of date. |
| | 408 | */ |
| | 409 | update(rname, opts, st) |
| | 410 | char *rname; |
| | 411 | int opts; |
| | 412 | struct stat *st; |
| | 413 | { |
| | 414 | register char *cp, *s; |
| | 415 | register off_t size; |
| | 416 | register time_t mtime; |
| | 417 | |
| | 418 | if (debug) |
| | 419 | printf("update(%s, %x, %x)\n", rname, opts, st); |
| | 420 | |
| | 421 | /* |
| | 422 | * Check to see if the file exists on the remote machine. |
| | 423 | */ |
| | 424 | (void) sprintf(buf, "Q%s\n", rname); |
| | 425 | if (debug) |
| | 426 | printf("buf = %s", buf); |
| | 427 | (void) write(rem, buf, strlen(buf)); |
| | 428 | cp = s = buf; |
| | 429 | do { |
| | 430 | if (read(rem, cp, 1) != 1) |
| | 431 | lostconn(); |
| | 432 | } while (*cp++ != '\n' && cp < &buf[BUFSIZ]); |
| | 433 | |
| | 434 | switch (*s++) { |
| | 435 | case 'Y': |
| | 436 | break; |
| | 437 | |
| | 438 | case 'N': /* file doesn't exist so install it */ |
| | 439 | return(1); |
| | 440 | |
| | 441 | case '\1': |
| | 442 | nerrs++; |
| | 443 | if (*s != '\n') { |
| | 444 | if (!iamremote) { |
| | 445 | fflush(stdout); |
| | 446 | (void) write(2, s, cp - s); |
| | 447 | } |
| | 448 | if (lfp != NULL) |
| | 449 | (void) fwrite(s, 1, cp - s, lfp); |
| | 450 | } |
| | 451 | return(0); |
| | 452 | |
| | 453 | default: |
| | 454 | printf("buf = "); |
| | 455 | fwrite(buf, 1, cp - s, stdout); |
| | 456 | error("update: unexpected response '%c'\n", buf[0]); |
| | 457 | return(0); |
| | 458 | } |
| | 459 | |
| | 460 | if (*s == '\n') |
| | 461 | return(2); |
| | 462 | |
| | 463 | if (opts & COMPARE) |
| | 464 | return(3); |
| | 465 | |
| | 466 | size = 0; |
| | 467 | while (isdigit(*s)) |
| | 468 | size = size * 10 + (*s++ - '0'); |
| | 469 | if (*s++ != ' ') { |
| | 470 | error("update: size not delimited\n"); |
| | 471 | return(0); |
| | 472 | } |
| | 473 | mtime = 0; |
| | 474 | while (isdigit(*s)) |
| | 475 | mtime = mtime * 10 + (*s++ - '0'); |
| | 476 | if (*s != '\n') { |
| | 477 | error("update: mtime not delimited\n"); |
| | 478 | return(0); |
| | 479 | } |
| | 480 | /* |
| | 481 | * File needs to be updated? |
| | 482 | */ |
| | 483 | if (opts & YOUNGER) { |
| | 484 | if (st->st_mtime == mtime) |
| | 485 | return(0); |
| | 486 | if (st->st_mtime < mtime) { |
| | 487 | log(lfp, "Warning: %s: remote copy is newer\n", target); |
| | 488 | return(0); |
| | 489 | } |
| | 490 | } else if (st->st_mtime == mtime && st->st_size == size) |
| | 491 | return(0); |
| | 492 | return(2); |
| | 493 | } |
| | 494 | |
| | 495 | /* |
| | 496 | * Query. Check to see if file exists. Return one of the following: |
| | 497 | * N\n - doesn't exist |
| | 498 | * Ysize mtime\n - exists and its a regular file (size & mtime of file) |
| | 499 | * Y\n - exists and its a directory |
| | 500 | * ^Aerror message\n |
| | 501 | */ |
| | 502 | query(name) |
| | 503 | char *name; |
| | 504 | { |
| | 505 | struct stat stb; |
| | 506 | |
| | 507 | if (catname) |
| | 508 | (void) sprintf(tp, "/%s", name); |
| | 509 | |
| | 510 | if (stat(target, &stb) < 0) { |
| | 511 | (void) write(rem, "N\n", 2); |
| | 512 | *tp = '\0'; |
| | 513 | return; |
| | 514 | } |
| | 515 | |
| | 516 | switch (stb.st_mode & S_IFMT) { |
| | 517 | case S_IFREG: |
| | 518 | (void) sprintf(buf, "Y%D %D\n", stb.st_size, stb.st_mtime); |
| | 519 | (void) write(rem, buf, strlen(buf)); |
| | 520 | break; |
| | 521 | |
| | 522 | case S_IFDIR: |
| | 523 | (void) write(rem, "Y\n", 2); |
| | 524 | break; |
| | 525 | |
| | 526 | default: |
| | 527 | error("%s: not a plain file\n", name); |
| | 528 | break; |
| | 529 | } |
| | 530 | *tp = '\0'; |
| | 531 | } |
| | 532 | |
| | 533 | recvf(cmd, isdir) |
| | 534 | char *cmd; |
| | 535 | int isdir; |
| | 536 | { |
| | 537 | register char *cp; |
| | 538 | int f, mode, opts, wrerr, olderrno; |
| | 539 | off_t i, size; |
| | 540 | time_t mtime; |
| | 541 | struct stat stb; |
| | 542 | struct timeval tvp[2]; |
| | 543 | char *owner, *group, *dir; |
| | 544 | char new[BUFSIZ]; |
| | 545 | extern char *tmpname; |
| | 546 | |
| | 547 | cp = cmd; |
| | 548 | opts = 0; |
| | 549 | while (*cp >= '0' && *cp <= '7') |
| | 550 | opts = (opts << 3) | (*cp++ - '0'); |
| | 551 | if (*cp++ != ' ') { |
| | 552 | error("recvf: options not delimited\n"); |
| | 553 | return; |
| | 554 | } |
| | 555 | mode = 0; |
| | 556 | while (*cp >= '0' && *cp <= '7') |
| | 557 | mode = (mode << 3) | (*cp++ - '0'); |
| | 558 | if (*cp++ != ' ') { |
| | 559 | error("recvf: mode not delimited\n"); |
| | 560 | return; |
| | 561 | } |
| | 562 | size = 0; |
| | 563 | while (isdigit(*cp)) |
| | 564 | size = size * 10 + (*cp++ - '0'); |
| | 565 | if (*cp++ != ' ') { |
| | 566 | error("recvf: size not delimited\n"); |
| | 567 | return; |
| | 568 | } |
| | 569 | mtime = 0; |
| | 570 | while (isdigit(*cp)) |
| | 571 | mtime = mtime * 10 + (*cp++ - '0'); |
| | 572 | if (*cp++ != ' ') { |
| | 573 | error("recvf: mtime not delimited\n"); |
| | 574 | return; |
| | 575 | } |
| | 576 | owner = cp; |
| | 577 | while (*cp && *cp != ' ') |
| | 578 | cp++; |
| | 579 | if (*cp != ' ') { |
| | 580 | error("recvf: owner name not delimited\n"); |
| | 581 | return; |
| | 582 | } |
| | 583 | *cp++ = '\0'; |
| | 584 | group = cp; |
| | 585 | while (*cp && *cp != ' ') |
| | 586 | cp++; |
| | 587 | if (*cp != ' ') { |
| | 588 | error("recvf: group name not delimited\n"); |
| | 589 | return; |
| | 590 | } |
| | 591 | *cp++ = '\0'; |
| | 592 | |
| | 593 | if (isdir) { |
| | 594 | if (catname >= sizeof(stp)) { |
| | 595 | error("%s: too many directory levels\n", target); |
| | 596 | return; |
| | 597 | } |
| | 598 | stp[catname] = tp; |
| | 599 | if (catname++) { |
| | 600 | *tp++ = '/'; |
| | 601 | while (*tp++ = *cp++) |
| | 602 | ; |
| | 603 | tp--; |
| | 604 | } |
| | 605 | if (opts & VERIFY) { |
| | 606 | ack(); |
| | 607 | return; |
| | 608 | } |
| | 609 | if (stat(target, &stb) == 0) { |
| | 610 | if (ISDIR(stb.st_mode)) { |
| | 611 | if ((stb.st_mode & 0777) == mode) { |
| | 612 | ack(); |
| | 613 | return; |
| | 614 | } |
| | 615 | buf[0] = '\0'; |
| | 616 | (void) sprintf(buf + 1, |
| | 617 | "%s:%s: Warning: mode %o != %o\n", |
| | 618 | host, target, stb.st_mode & 0777, mode); |
| | 619 | (void) write(rem, buf, strlen(buf + 1) + 1); |
| | 620 | return; |
| | 621 | } |
| | 622 | error("%s: %s\n", target, sys_errlist[ENOTDIR]); |
| | 623 | } else if (chkparent(target) < 0 || mkdir(target, mode) < 0) |
| | 624 | error("%s: %s\n", target, sys_errlist[errno]); |
| | 625 | else if (chog(target, owner, group, mode) == 0) { |
| | 626 | ack(); |
| | 627 | return; |
| | 628 | } |
| | 629 | tp = stp[--catname]; |
| | 630 | *tp = '\0'; |
| | 631 | return; |
| | 632 | } |
| | 633 | |
| | 634 | new[0] = '\0'; |
| | 635 | if (catname) |
| | 636 | (void) sprintf(tp, "/%s", cp); |
| | 637 | if (stat(target, &stb) == 0 && (stb.st_mode & S_IFMT) != S_IFREG) { |
| | 638 | error("%s: not a regular file\n", target); |
| | 639 | return; |
| | 640 | } |
| | 641 | if (chkparent(target) < 0) |
| | 642 | goto bad; |
| | 643 | cp = rindex(target, '/'); |
| | 644 | if (cp == NULL) |
| | 645 | dir = "."; |
| | 646 | else if (cp == target) { |
| | 647 | dir = ""; |
| | 648 | cp = NULL; |
| | 649 | } else { |
| | 650 | dir = target; |
| | 651 | *cp = '\0'; |
| | 652 | } |
| | 653 | (void) sprintf(new, "%s/%s", dir, tmpname); |
| | 654 | if (cp != NULL) |
| | 655 | *cp = '/'; |
| | 656 | if ((f = creat(new, mode)) < 0) |
| | 657 | goto bad1; |
| | 658 | ack(); |
| | 659 | |
| | 660 | wrerr = 0; |
| | 661 | for (i = 0; i < size; i += BUFSIZ) { |
| | 662 | int amt = BUFSIZ; |
| | 663 | |
| | 664 | cp = buf; |
| | 665 | if (i + amt > size) |
| | 666 | amt = size - i; |
| | 667 | do { |
| | 668 | int j = read(rem, cp, amt); |
| | 669 | |
| | 670 | if (j <= 0) { |
| | 671 | (void) close(f); |
| | 672 | (void) unlink(new); |
| | 673 | cleanup(); |
| | 674 | } |
| | 675 | amt -= j; |
| | 676 | cp += j; |
| | 677 | } while (amt > 0); |
| | 678 | amt = BUFSIZ; |
| | 679 | if (i + amt > size) |
| | 680 | amt = size - i; |
| | 681 | if (wrerr == 0 && write(f, buf, amt) != amt) { |
| | 682 | olderrno = errno; |
| | 683 | wrerr++; |
| | 684 | } |
| | 685 | } |
| | 686 | (void) close(f); |
| | 687 | (void) response(); |
| | 688 | if (wrerr) { |
| | 689 | error("%s: %s\n", cp, sys_errlist[olderrno]); |
| | 690 | (void) unlink(new); |
| | 691 | return; |
| | 692 | } |
| | 693 | if (opts & COMPARE) { |
| | 694 | FILE *f1, *f2; |
| | 695 | int c; |
| | 696 | |
| | 697 | if ((f1 = fopen(target, "r")) == NULL) |
| | 698 | goto bad; |
| | 699 | if ((f2 = fopen(new, "r")) == NULL) |
| | 700 | goto bad1; |
| | 701 | while ((c = getc(f1)) == getc(f2)) |
| | 702 | if (c == EOF) { |
| | 703 | (void) fclose(f1); |
| | 704 | (void) fclose(f2); |
| | 705 | (void) unlink(new); |
| | 706 | ack(); |
| | 707 | return; |
| | 708 | } |
| | 709 | (void) fclose(f1); |
| | 710 | (void) fclose(f2); |
| | 711 | if (opts & VERIFY) { |
| | 712 | (void) unlink(new); |
| | 713 | buf[0] = '\0'; |
| | 714 | (void) sprintf(buf + 1, "need to update %s:%s\n", |
| | 715 | host, target); |
| | 716 | (void) write(rem, buf, strlen(buf + 1) + 1); |
| | 717 | return; |
| | 718 | } |
| | 719 | } |
| | 720 | |
| | 721 | /* |
| | 722 | * Set last modified time |
| | 723 | */ |
| | 724 | tvp[0].tv_sec = stb.st_atime; /* old accessed time from target */ |
| | 725 | tvp[0].tv_usec = 0; |
| | 726 | tvp[1].tv_sec = mtime; |
| | 727 | tvp[1].tv_usec = 0; |
| | 728 | if (utimes(new, tvp) < 0) { |
| | 729 | bad1: |
| | 730 | error("%s: %s\n", new, sys_errlist[errno]); |
| | 731 | (void) unlink(new); |
| | 732 | return; |
| | 733 | } |
| | 734 | if (chog(new, owner, group, mode) < 0) { |
| | 735 | (void) unlink(new); |
| | 736 | return; |
| | 737 | } |
| | 738 | |
| | 739 | if (rename(new, target) < 0) { |
| | 740 | bad: |
| | 741 | error("%s: %s\n", target, sys_errlist[errno]); |
| | 742 | if (new[0]) |
| | 743 | (void) unlink(new); |
| | 744 | return; |
| | 745 | } |
| | 746 | if (opts & COMPARE) { |
| | 747 | buf[0] = '\0'; |
| | 748 | (void) sprintf(buf + 1, "updated %s:%s\n", host, target); |
| | 749 | (void) write(rem, buf, strlen(buf + 1) + 1); |
| | 750 | } else |
| | 751 | ack(); |
| | 752 | } |
| | 753 | |
| | 754 | /* |
| | 755 | * Check parent directory for write permission and create if it doesn't |
| | 756 | * exist. |
| | 757 | */ |
| | 758 | chkparent(name) |
| | 759 | char *name; |
| | 760 | { |
| | 761 | register char *cp, *dir; |
| | 762 | extern int userid, groupid; |
| | 763 | |
| | 764 | cp = rindex(name, '/'); |
| | 765 | if (cp == NULL) |
| | 766 | dir = "."; |
| | 767 | else if (cp == name) { |
| | 768 | dir = "/"; |
| | 769 | cp = NULL; |
| | 770 | } else { |
| | 771 | dir = name; |
| | 772 | *cp = '\0'; |
| | 773 | } |
| | 774 | if (access(dir, 2) == 0) { |
| | 775 | if (cp != NULL) |
| | 776 | *cp = '/'; |
| | 777 | return(0); |
| | 778 | } |
| | 779 | if (errno == ENOENT) { |
| | 780 | if (rindex(dir, '/') != NULL && chkparent(dir) < 0) |
| | 781 | goto bad; |
| | 782 | if (!strcmp(dir, ".") || !strcmp(dir, "/")) |
| | 783 | goto bad; |
| | 784 | if (mkdir(dir, 0777 & ~oumask) < 0) |
| | 785 | goto bad; |
| | 786 | if (chown(dir, userid, groupid) < 0) { |
| | 787 | (void) unlink(dir); |
| | 788 | goto bad; |
| | 789 | } |
| | 790 | if (cp != NULL) |
| | 791 | *cp = '/'; |
| | 792 | return(0); |
| | 793 | } |
| | 794 | |
| | 795 | bad: |
| | 796 | if (cp != NULL) |
| | 797 | *cp = '/'; |
| | 798 | return(-1); |
| | 799 | } |
| | 800 | |
| | 801 | /* |
| | 802 | * Change owner, group and mode of file. |
| | 803 | */ |
| | 804 | chog(file, owner, group, mode) |
| | 805 | char *file, *owner, *group; |
| | 806 | int mode; |
| | 807 | { |
| | 808 | extern int userid, groupid; |
| | 809 | extern char user[]; |
| | 810 | register int i; |
| | 811 | int uid, gid; |
| | 812 | |
| | 813 | uid = userid; |
| | 814 | if (userid == 0) { |
| | 815 | if (pw == NULL || strcmp(owner, pw->pw_name) != 0) { |
| | 816 | if ((pw = getpwnam(owner)) == NULL) { |
| | 817 | if (mode & 04000) { |
| | 818 | error("%s: unknown login name\n", owner); |
| | 819 | return(-1); |
| | 820 | } |
| | 821 | } else |
| | 822 | uid = pw->pw_uid; |
| | 823 | } else |
| | 824 | uid = pw->pw_uid; |
| | 825 | } else if ((mode & 04000) && strcmp(user, owner) != 0) |
| | 826 | mode &= ~04000; |
| | 827 | gid = groupid; |
| | 828 | if (gr == NULL || strcmp(group, gr->gr_name) != 0) { |
| | 829 | if ((gr = getgrnam(group)) == NULL) { |
| | 830 | if (mode & 02000) { |
| | 831 | error("%s: unknown group\n", group); |
| | 832 | return(-1); |
| | 833 | } |
| | 834 | } else |
| | 835 | gid = gr->gr_gid; |
| | 836 | } else |
| | 837 | gid = gr->gr_gid; |
| | 838 | if (userid && groupid != gid) { |
| | 839 | for (i = 0; gr->gr_mem[i] != NULL; i++) |
| | 840 | if (!(strcmp(user, gr->gr_mem[i]))) |
| | 841 | goto ok; |
| | 842 | mode &= ~02000; |
| | 843 | gid = groupid; |
| | 844 | } |
| | 845 | ok: |
| | 846 | if (chown(file, uid, gid) < 0) { |
| | 847 | error("%s: %s\n", file, sys_errlist[errno]); |
| | 848 | return(-1); |
| | 849 | } |
| | 850 | /* |
| | 851 | * Restore set-user-id or set-group-id bit if appropriate. |
| | 852 | */ |
| | 853 | if ((mode & 06000) && chmod(file, mode) < 0) { |
| | 854 | error("%s: %s\n", file, sys_errlist[errno]); |
| | 855 | return(-1); |
| | 856 | } |
| | 857 | return(0); |
| | 858 | } |
| | 859 | |
| | 860 | /* |
| | 861 | * Check for files on the machine being updated that are not on the master |
| | 862 | * machine and remove them. |
| | 863 | */ |
| | 864 | rmchk(opts) |
| | 865 | int opts; |
| | 866 | { |
| | 867 | register char *cp, *s; |
| | 868 | struct stat stb; |
| | 869 | |
| | 870 | if (debug) |
| | 871 | printf("rmchk()\n"); |
| | 872 | |
| | 873 | /* |
| | 874 | * Tell the remote to clean the files from the last directory sent. |
| | 875 | */ |
| | 876 | (void) sprintf(buf, "C%o\n", opts & VERIFY); |
| | 877 | if (debug) |
| | 878 | printf("buf = %s", buf); |
| | 879 | (void) write(rem, buf, strlen(buf)); |
| | 880 | if (response() < 0) |
| | 881 | return; |
| | 882 | for (;;) { |
| | 883 | cp = s = buf; |
| | 884 | do { |
| | 885 | if (read(rem, cp, 1) != 1) |
| | 886 | lostconn(); |
| | 887 | } while (*cp++ != '\n' && cp < &buf[BUFSIZ]); |
| | 888 | |
| | 889 | switch (*s++) { |
| | 890 | case 'Q': /* Query if file should be removed */ |
| | 891 | /* |
| | 892 | * Return the following codes to remove query. |
| | 893 | * N\n -- file exists - DON'T remove. |
| | 894 | * Y\n -- file doesn't exist - REMOVE. |
| | 895 | */ |
| | 896 | *--cp = '\0'; |
| | 897 | (void) sprintf(tp, "/%s", s); |
| | 898 | if (debug) |
| | 899 | printf("check %s\n", target); |
| | 900 | if (inlist(except, target)) |
| | 901 | (void) write(rem, "N\n", 2); |
| | 902 | else if (stat(target, &stb) < 0) |
| | 903 | (void) write(rem, "Y\n", 2); |
| | 904 | else |
| | 905 | (void) write(rem, "N\n", 2); |
| | 906 | break; |
| | 907 | |
| | 908 | case '\0': |
| | 909 | *--cp = '\0'; |
| | 910 | if (*s != '\0') |
| | 911 | log(lfp, "%s\n", s); |
| | 912 | break; |
| | 913 | |
| | 914 | case 'E': |
| | 915 | *tp = '\0'; |
| | 916 | ack(); |
| | 917 | return; |
| | 918 | |
| | 919 | case '\1': |
| | 920 | case '\2': |
| | 921 | nerrs++; |
| | 922 | if (*s != '\n') { |
| | 923 | if (!iamremote) { |
| | 924 | fflush(stdout); |
| | 925 | (void) write(2, s, cp - s); |
| | 926 | } |
| | 927 | if (lfp != NULL) |
| | 928 | (void) fwrite(s, 1, cp - s, lfp); |
| | 929 | } |
| | 930 | if (buf[0] == '\2') |
| | 931 | lostconn(); |
| | 932 | break; |
| | 933 | |
| | 934 | default: |
| | 935 | error("rmchk: unexpected response '%s'\n", buf); |
| | 936 | err(); |
| | 937 | } |
| | 938 | } |
| | 939 | } |
| | 940 | |
| | 941 | /* |
| | 942 | * Check the current directory (initialized by the 'T' command to server()) |
| | 943 | * for extraneous files and remove them. |
| | 944 | */ |
| | 945 | clean(cp) |
| | 946 | register char *cp; |
| | 947 | { |
| | 948 | DIR *d; |
| | 949 | register struct direct *dp; |
| | 950 | struct stat stb; |
| | 951 | char *otp; |
| | 952 | int len, opts; |
| | 953 | |
| | 954 | opts = 0; |
| | 955 | while (*cp >= '0' && *cp <= '7') |
| | 956 | opts = (opts << 3) | (*cp++ - '0'); |
| | 957 | if (*cp != '\0') { |
| | 958 | error("clean: options not delimited\n"); |
| | 959 | return; |
| | 960 | } |
| | 961 | if (access(target, 6) < 0 || (d = opendir(target)) == NULL) { |
| | 962 | error("%s: %s\n", target, sys_errlist[errno]); |
| | 963 | return; |
| | 964 | } |
| | 965 | ack(); |
| | 966 | |
| | 967 | otp = tp; |
| | 968 | len = tp - target; |
| | 969 | while (dp = readdir(d)) { |
| | 970 | if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) |
| | 971 | continue; |
| | 972 | if (len + 1 + strlen(dp->d_name) >= BUFSIZ - 1) { |
| | 973 | error("%s/%s: Name too long\n", target, dp->d_name); |
| | 974 | continue; |
| | 975 | } |
| | 976 | tp = otp; |
| | 977 | *tp++ = '/'; |
| | 978 | cp = dp->d_name;; |
| | 979 | while (*tp++ = *cp++) |
| | 980 | ; |
| | 981 | tp--; |
| | 982 | if (stat(target, &stb) < 0) { |
| | 983 | error("%s: %s\n", target, sys_errlist[errno]); |
| | 984 | continue; |
| | 985 | } |
| | 986 | (void) sprintf(buf, "Q%s\n", dp->d_name); |
| | 987 | (void) write(rem, buf, strlen(buf)); |
| | 988 | cp = buf; |
| | 989 | do { |
| | 990 | if (read(rem, cp, 1) != 1) |
| | 991 | cleanup(); |
| | 992 | } while (*cp++ != '\n' && cp < &buf[BUFSIZ]); |
| | 993 | *--cp = '\0'; |
| | 994 | cp = buf; |
| | 995 | if (*cp != 'Y') |
| | 996 | continue; |
| | 997 | if (opts & VERIFY) { |
| | 998 | cp = buf; |
| | 999 | *cp++ = '\0'; |
| | 1000 | (void) sprintf(cp, "need to remove %s\n", target); |
| | 1001 | (void) write(rem, buf, strlen(cp) + 1); |
| | 1002 | } else |
| | 1003 | remove(&stb); |
| | 1004 | } |
| | 1005 | closedir(d); |
| | 1006 | (void) write(rem, "E\n", 2); |
| | 1007 | (void) response(); |
| | 1008 | tp = otp; |
| | 1009 | *tp = '\0'; |
| | 1010 | } |
| | 1011 | |
| | 1012 | /* |
| | 1013 | * Remove a file or directory (recursively) and send back an acknowledge |
| | 1014 | * or an error message. |
| | 1015 | */ |
| | 1016 | remove(st) |
| | 1017 | struct stat *st; |
| | 1018 | { |
| | 1019 | DIR *d; |
| | 1020 | struct direct *dp; |
| | 1021 | register char *cp; |
| | 1022 | struct stat stb; |
| | 1023 | char *otp; |
| | 1024 | int len; |
| | 1025 | |
| | 1026 | switch (st->st_mode & S_IFMT) { |
| | 1027 | case S_IFREG: |
| | 1028 | if (unlink(target) < 0) |
| | 1029 | goto bad; |
| | 1030 | goto removed; |
| | 1031 | |
| | 1032 | case S_IFDIR: |
| | 1033 | break; |
| | 1034 | |
| | 1035 | default: |
| | 1036 | error("%s: not a plain file\n", target); |
| | 1037 | return; |
| | 1038 | } |
| | 1039 | |
| | 1040 | if (access(target, 6) < 0 || (d = opendir(target)) == NULL) |
| | 1041 | goto bad; |
| | 1042 | |
| | 1043 | otp = tp; |
| | 1044 | len = tp - target; |
| | 1045 | while (dp = readdir(d)) { |
| | 1046 | if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) |
| | 1047 | continue; |
| | 1048 | if (len + 1 + strlen(dp->d_name) >= BUFSIZ - 1) { |
| | 1049 | error("%s/%s: Name too long\n", target, dp->d_name); |
| | 1050 | continue; |
| | 1051 | } |
| | 1052 | tp = otp; |
| | 1053 | *tp++ = '/'; |
| | 1054 | cp = dp->d_name;; |
| | 1055 | while (*tp++ = *cp++) |
| | 1056 | ; |
| | 1057 | tp--; |
| | 1058 | if (stat(target, &stb) < 0) { |
| | 1059 | error("%s: %s\n", target, sys_errlist[errno]); |
| | 1060 | continue; |
| | 1061 | } |
| | 1062 | remove(&stb); |
| | 1063 | } |
| | 1064 | closedir(d); |
| | 1065 | tp = otp; |
| | 1066 | *tp = '\0'; |
| | 1067 | if (rmdir(target) < 0) { |
| | 1068 | bad: |
| | 1069 | error("%s: %s\n", target, sys_errlist[errno]); |
| | 1070 | return; |
| | 1071 | } |
| | 1072 | removed: |
| | 1073 | cp = buf; |
| | 1074 | *cp++ = '\0'; |
| | 1075 | (void) sprintf(cp, "removed %s\n", target); |
| | 1076 | (void) write(rem, buf, strlen(cp) + 1); |
| | 1077 | } |
| | 1078 | |
| | 1079 | /* |
| | 1080 | * Execute a shell command to handle special cases. |
| | 1081 | */ |
| | 1082 | dospecial(cmd) |
| | 1083 | char *cmd; |
| | 1084 | { |
| | 1085 | int fd[2], status, pid, i; |
| | 1086 | register char *cp, *s; |
| | 1087 | char sbuf[BUFSIZ]; |
| | 1088 | |
| | 1089 | if (pipe(fd) < 0) { |
| | 1090 | error("%s\n", sys_errlist[errno]); |
| | 1091 | return; |
| | 1092 | } |
| | 1093 | if ((pid = fork()) == 0) { |
| | 1094 | /* |
| | 1095 | * Return everything the shell commands print. |
| | 1096 | */ |
| | 1097 | (void) close(0); |
| | 1098 | (void) close(1); |
| | 1099 | (void) close(2); |
| | 1100 | (void) open("/dev/null", 0); |
| | 1101 | (void) dup(fd[1]); |
| | 1102 | (void) dup(fd[1]); |
| | 1103 | (void) close(fd[0]); |
| | 1104 | (void) close(fd[1]); |
| | 1105 | execl("/bin/sh", "sh", "-c", cmd, 0); |
| | 1106 | _exit(127); |
| | 1107 | } |
| | 1108 | (void) close(fd[1]); |
| | 1109 | s = sbuf; |
| | 1110 | *s++ = '\0'; |
| | 1111 | while ((i = read(fd[0], buf, sizeof(buf))) > 0) { |
| | 1112 | cp = buf; |
| | 1113 | do { |
| | 1114 | *s++ = *cp++; |
| | 1115 | if (cp[-1] != '\n') { |
| | 1116 | if (s < &sbuf[sizeof(sbuf)-1]) |
| | 1117 | continue; |
| | 1118 | *s++ = '\n'; |
| | 1119 | } |
| | 1120 | /* |
| | 1121 | * Throw away blank lines. |
| | 1122 | */ |
| | 1123 | if (s == &sbuf[2]) { |
| | 1124 | s--; |
| | 1125 | continue; |
| | 1126 | } |
| | 1127 | (void) write(rem, sbuf, s - sbuf); |
| | 1128 | s = &sbuf[1]; |
| | 1129 | } while (--i); |
| | 1130 | } |
| | 1131 | if (s > &sbuf[1]) { |
| | 1132 | *s++ = '\n'; |
| | 1133 | (void) write(rem, sbuf, s - sbuf); |
| | 1134 | } |
| | 1135 | while ((i = wait(&status)) != pid && i != -1) |
| | 1136 | ; |
| | 1137 | if (i == -1) |
| | 1138 | status = -1; |
| | 1139 | if (status) |
| | 1140 | error("shell returned %d\n", status); |
| | 1141 | else |
| | 1142 | ack(); |
| | 1143 | } |
| | 1144 | |
| | 1145 | /*VARARGS2*/ |
| | 1146 | log(fp, fmt, a1, a2, a3) |
| | 1147 | FILE *fp; |
| | 1148 | char *fmt; |
| | 1149 | int a1, a2, a3; |
| | 1150 | { |
| | 1151 | /* Print changes locally if not quiet mode */ |
| | 1152 | if (!qflag) |
| | 1153 | printf(fmt, a1, a2, a3); |
| | 1154 | |
| | 1155 | /* Save changes (for mailing) if really updating files */ |
| | 1156 | if (!(options & VERIFY) && fp != NULL) |
| | 1157 | fprintf(fp, fmt, a1, a2, a3); |
| | 1158 | } |
| | 1159 | |
| | 1160 | /*VARARGS1*/ |
| | 1161 | error(fmt, a1, a2, a3) |
| | 1162 | char *fmt; |
| | 1163 | int a1, a2, a3; |
| | 1164 | { |
| | 1165 | nerrs++; |
| | 1166 | strcpy(buf, "\1rdist: "); |
| | 1167 | (void) sprintf(buf+8, fmt, a1, a2, a3); |
| | 1168 | if (!iamremote) { |
| | 1169 | fflush(stdout); |
| | 1170 | (void) write(2, buf+1, strlen(buf+1)); |
| | 1171 | } else |
| | 1172 | (void) write(rem, buf, strlen(buf)); |
| | 1173 | if (lfp != NULL) |
| | 1174 | (void) fwrite(buf+1, 1, strlen(buf+1), lfp); |
| | 1175 | } |
| | 1176 | |
| | 1177 | /*VARARGS1*/ |
| | 1178 | fatal(fmt, a1, a2,a3) |
| | 1179 | char *fmt; |
| | 1180 | int a1, a2, a3; |
| | 1181 | { |
| | 1182 | nerrs++; |
| | 1183 | strcpy(buf, "\2rdist: "); |
| | 1184 | (void) sprintf(buf+8, fmt, a1, a2, a3); |
| | 1185 | if (!iamremote) { |
| | 1186 | fflush(stdout); |
| | 1187 | (void) write(2, buf+1, strlen(buf+1)); |
| | 1188 | } else |
| | 1189 | (void) write(rem, buf, strlen(buf)); |
| | 1190 | if (lfp != NULL) |
| | 1191 | (void) fwrite(buf+1, 1, strlen(buf+1), lfp); |
| | 1192 | cleanup(); |
| | 1193 | } |
| | 1194 | |
| | 1195 | response() |
| | 1196 | { |
| | 1197 | char *cp, *s; |
| | 1198 | |
| | 1199 | if (debug) |
| | 1200 | printf("response()\n"); |
| | 1201 | |
| | 1202 | cp = s = buf; |
| | 1203 | do { |
| | 1204 | if (read(rem, cp, 1) != 1) |
| | 1205 | lostconn(); |
| | 1206 | } while (*cp++ != '\n' && cp < &buf[BUFSIZ]); |
| | 1207 | |
| | 1208 | switch (*s++) { |
| | 1209 | case '\0': |
| | 1210 | *--cp = '\0'; |
| | 1211 | if (*s != '\0') { |
| | 1212 | log(lfp, "%s\n", s); |
| | 1213 | return(1); |
| | 1214 | } |
| | 1215 | return(0); |
| | 1216 | |
| | 1217 | default: |
| | 1218 | s--; |
| | 1219 | /* fall into... */ |
| | 1220 | case '\1': |
| | 1221 | case '\2': |
| | 1222 | nerrs++; |
| | 1223 | if (*s != '\n') { |
| | 1224 | if (!iamremote) { |
| | 1225 | fflush(stdout); |
| | 1226 | (void) write(2, s, cp - s); |
| | 1227 | } |
| | 1228 | if (lfp != NULL) |
| | 1229 | (void) fwrite(s, 1, cp - s, lfp); |
| | 1230 | } |
| | 1231 | if (buf[0] == '\2') |
| | 1232 | lostconn(); |
| | 1233 | return(-1); |
| | 1234 | } |
| | 1235 | } |
| | 1236 | |
| | 1237 | /* |
| | 1238 | * Remove temporary files and do any cleanup operations before exiting. |
| | 1239 | */ |
| | 1240 | cleanup() |
| | 1241 | { |
| | 1242 | (void) unlink(tmpfile); |
| | 1243 | exit(1); |
| | 1244 | } |
projects / unix-history / blame_incremental