| File: | src/usr.bin/rdist/client.c |
| Warning: | line 273, column 4 Value stored to 'first' is never read |
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| 1 | /* $OpenBSD: client.c,v 1.37 2019/06/28 13:35:03 deraadt Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright (c) 1983 Regents of the University of California. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without |
| 8 | * modification, are permitted provided that the following conditions |
| 9 | * are met: |
| 10 | * 1. Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * 2. Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in the |
| 14 | * documentation and/or other materials provided with the distribution. |
| 15 | * 3. Neither the name of the University nor the names of its contributors |
| 16 | * may be used to endorse or promote products derived from this software |
| 17 | * without specific prior written permission. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 20 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 22 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 23 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 24 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 25 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 27 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 28 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 29 | * SUCH DAMAGE. |
| 30 | */ |
| 31 | |
| 32 | #include <ctype.h> |
| 33 | #include <dirent.h> |
| 34 | #include <errno(*__errno()).h> |
| 35 | #include <fcntl.h> |
| 36 | #include <limits.h> |
| 37 | #include <stdlib.h> |
| 38 | #include <string.h> |
| 39 | #include <unistd.h> |
| 40 | |
| 41 | #include "client.h" |
| 42 | #include "gram.h" |
| 43 | |
| 44 | /* |
| 45 | * Routines used in client mode to communicate with remove server. |
| 46 | */ |
| 47 | |
| 48 | |
| 49 | /* |
| 50 | * Update status |
| 51 | */ |
| 52 | #define US_NOTHING0 0 /* No update needed */ |
| 53 | #define US_NOENT1 1 /* Entry does not exist */ |
| 54 | #define US_OUTDATE2 2 /* Entry is out of date */ |
| 55 | #define US_DOCOMP3 3 /* Do a binary comparison */ |
| 56 | #define US_CHMOG4 4 /* Modes or ownership of file differ */ |
| 57 | |
| 58 | struct linkbuf *ihead = NULL((void *)0); /* list of files with more than one link */ |
| 59 | char buf[BUFSIZ1024]; /* general purpose buffer */ |
| 60 | u_char respbuff[BUFSIZ1024]; /* Response buffer */ |
| 61 | char target[BUFSIZ1024]; /* target/source directory name */ |
| 62 | char source[BUFSIZ1024]; /* source directory name */ |
| 63 | char *ptarget; /* pointer to end of target name */ |
| 64 | char *Tdest; /* pointer to last T dest*/ |
| 65 | struct namelist *updfilelist = NULL((void *)0); /* List of updated files */ |
| 66 | |
| 67 | static void runspecial(char *, opt_t, char *, int); |
| 68 | static void addcmdspecialfile(char *, char *, int); |
| 69 | static void freecmdspecialfiles(void); |
| 70 | static struct linkbuf *linkinfo(struct stat *); |
| 71 | static int sendhardlink(opt_t, struct linkbuf *, char *, int); |
| 72 | static int sendfile(char *, opt_t, struct stat *, char *, char *, int); |
| 73 | static int rmchk(opt_t); |
| 74 | static int senddir(char *, opt_t, struct stat *, char *, char *, int); |
| 75 | static int sendlink(char *, opt_t, struct stat *, char *, char *, int); |
| 76 | static int update(char *, opt_t, struct stat *); |
| 77 | static int dostat(char *, struct stat *, opt_t); |
| 78 | static int statupdate(int, char *, opt_t, char *, int, struct stat *, char *, char *); |
| 79 | static int fullupdate(int, char *, opt_t, char *, int, struct stat *, char *, char *); |
| 80 | static int sendit(char *, opt_t, int); |
| 81 | |
| 82 | /* |
| 83 | * return remote file pathname (relative from target) |
| 84 | */ |
| 85 | char * |
| 86 | remfilename(char *src, char *dest, char *path, char *rname, int destdir) |
| 87 | { |
| 88 | char *lname, *cp; |
| 89 | static char buff[BUFSIZ1024]; |
| 90 | int srclen, pathlen; |
| 91 | char *p; |
| 92 | |
| 93 | |
| 94 | debugmsg(DM_MISC0x10, |
| 95 | "remfilename: src=%s dest=%s path=%s rname=%s destdir=%d\n", |
| 96 | A(src)((src) ? src : "<null>"), A(dest)((dest) ? dest : "<null>"), A(path)((path) ? path : "<null>"), A(rname)((rname) ? rname : "<null>"), destdir); |
| 97 | |
| 98 | if (!dest) { |
| 99 | debugmsg(DM_MISC0x10, "remfilename: remote filename=%s\n", path); |
| 100 | return(path); |
| 101 | } |
| 102 | |
| 103 | if (!destdir) { |
| 104 | debugmsg(DM_MISC0x10, "remfilename: remote filename=%s\n", dest); |
| 105 | return(dest); |
| 106 | } |
| 107 | |
| 108 | buff[0] = CNULL'\0'; |
| 109 | lname = buff; |
| 110 | if (path && *path) { |
| 111 | cp = strrchr(path, '/'); |
| 112 | if (cp == NULL((void *)0)) |
| 113 | (void) snprintf(buff, sizeof(buff), "%s/%s", dest, path); |
| 114 | else { |
| 115 | srclen = strlen(src); |
| 116 | pathlen = strlen(path); |
| 117 | if (srclen >= pathlen) |
| 118 | cp++; /* xbasename(path) */ |
| 119 | else { |
| 120 | if (filelist && filelist->n_next == NULL((void *)0)) |
| 121 | /* path relative to src */ |
| 122 | cp = path + srclen; |
| 123 | else { |
| 124 | if ((p = strrchr(src, '/'))) |
| 125 | cp = path + srclen - strlen(p); |
| 126 | else |
| 127 | cp = path; |
| 128 | } |
| 129 | } |
| 130 | if ((*cp != '/') && *cp) |
| 131 | (void) snprintf(buff, sizeof(buff), "%s/%s", |
| 132 | dest, cp); |
| 133 | else |
| 134 | (void) snprintf(buff, sizeof(buff), "%s%s", |
| 135 | dest, cp); |
| 136 | } |
| 137 | } else |
| 138 | (void) strlcpy(lname, dest, buf + sizeof buff - lname); |
| 139 | |
| 140 | debugmsg(DM_MISC0x10, "remfilename: remote filename=%s\n", lname); |
| 141 | |
| 142 | return(lname); |
| 143 | } |
| 144 | |
| 145 | /* |
| 146 | * Return true if name is in the list. |
| 147 | */ |
| 148 | int |
| 149 | inlist(struct namelist *list, char *file) |
| 150 | { |
| 151 | struct namelist *nl; |
| 152 | |
| 153 | for (nl = list; nl != NULL((void *)0); nl = nl->n_next) |
| 154 | if (strcmp(file, nl->n_name) == 0) |
| 155 | return(1); |
| 156 | return(0); |
| 157 | } |
| 158 | |
| 159 | /* |
| 160 | * Run any special commands for this file |
| 161 | */ |
| 162 | static void |
| 163 | runspecial(char *starget, opt_t opts, char *rname, int destdir) |
| 164 | { |
| 165 | struct subcmd *sc; |
| 166 | char *rfile; |
| 167 | |
| 168 | rfile = remfilename(source, Tdest, target, rname, destdir); |
| 169 | |
| 170 | for (sc = subcmds; sc != NULL((void *)0); sc = sc->sc_next) { |
| 171 | if (sc->sc_type != SPECIAL10) |
| 172 | continue; |
| 173 | if (sc->sc_args != NULL((void *)0) && !inlist(sc->sc_args, starget)) |
| 174 | continue; |
| 175 | message(MT_CHANGE0x0020, "special \"%s\"", sc->sc_name); |
| 176 | if (IS_ON(opts, DO_VERIFY)(opts & 0x0000001)) |
| 177 | continue; |
| 178 | (void) sendcmd(C_SPECIAL'S', |
| 179 | "%s=%s;%s=%s;%s=%s;export %s %s %s;%s", |
| 180 | E_LOCFILE"FILE", starget, |
| 181 | E_REMFILE"REMFILE", rfile, |
| 182 | E_BASEFILE"BASEFILE", xbasename(rfile), |
| 183 | E_LOCFILE"FILE", E_REMFILE"REMFILE", E_BASEFILE"BASEFILE", |
| 184 | sc->sc_name); |
| 185 | while (response() > 0) |
| 186 | ; |
| 187 | } |
| 188 | } |
| 189 | |
| 190 | /* |
| 191 | * If we're doing a target with a "cmdspecial" in it, then |
| 192 | * save the name of the file being updated for use with "cmdspecial". |
| 193 | */ |
| 194 | static void |
| 195 | addcmdspecialfile(char *starget, char *rname, int destdir) |
| 196 | { |
| 197 | char *rfile; |
| 198 | struct namelist *new; |
| 199 | struct subcmd *sc; |
| 200 | int isokay = 0; |
| 201 | |
| 202 | rfile = remfilename(source, Tdest, target, rname, destdir); |
| 203 | |
| 204 | for (sc = subcmds; sc != NULL((void *)0) && !isokay; sc = sc->sc_next) { |
| 205 | if (sc->sc_type != CMDSPECIAL11) |
| 206 | continue; |
| 207 | if (sc->sc_args != NULL((void *)0) && !inlist(sc->sc_args, starget)) |
| 208 | continue; |
| 209 | isokay = TRUE1; |
| 210 | } |
| 211 | |
| 212 | if (isokay) { |
| 213 | new = xmalloc(sizeof *new); |
| 214 | new->n_name = xstrdup(rfile); |
| 215 | new->n_regex = NULL((void *)0); |
| 216 | new->n_next = updfilelist; |
| 217 | updfilelist = new; |
| 218 | } |
| 219 | } |
| 220 | |
| 221 | /* |
| 222 | * Free the file list |
| 223 | */ |
| 224 | static void |
| 225 | freecmdspecialfiles(void) |
| 226 | { |
| 227 | struct namelist *ptr, *save; |
| 228 | |
| 229 | for (ptr = updfilelist; ptr; ) { |
| 230 | if (ptr->n_name) (void) free(ptr->n_name); |
| 231 | save = ptr->n_next; |
| 232 | (void) free(ptr); |
| 233 | if (save) |
| 234 | ptr = save->n_next; |
| 235 | else |
| 236 | ptr = NULL((void *)0); |
| 237 | } |
| 238 | updfilelist = NULL((void *)0); |
| 239 | } |
| 240 | |
| 241 | /* |
| 242 | * Run commands for an entire cmd |
| 243 | */ |
| 244 | void |
| 245 | runcmdspecial(struct cmd *cmd, opt_t opts) |
| 246 | { |
| 247 | struct subcmd *sc; |
| 248 | struct namelist *f; |
| 249 | int first = TRUE1; |
| 250 | |
| 251 | for (sc = cmd->c_cmds; sc != NULL((void *)0); sc = sc->sc_next) { |
| 252 | if (sc->sc_type != CMDSPECIAL11) |
| 253 | continue; |
| 254 | message(MT_CHANGE0x0020, "cmdspecial \"%s\"", sc->sc_name); |
| 255 | if (IS_ON(opts, DO_VERIFY)(opts & 0x0000001)) |
| 256 | continue; |
| 257 | /* Send all the file names */ |
| 258 | for (f = updfilelist; f != NULL((void *)0); f = f->n_next) { |
| 259 | if (first) { |
| 260 | (void) sendcmd(C_CMDSPECIAL's', NULL((void *)0)); |
| 261 | if (response() < 0) |
| 262 | return; |
| 263 | first = FALSE0; |
| 264 | } |
| 265 | (void) sendcmd(RC_FILE'F', "%s", f->n_name); |
| 266 | if (response() < 0) |
| 267 | return; |
| 268 | } |
| 269 | if (first) { |
| 270 | (void) sendcmd(C_CMDSPECIAL's', NULL((void *)0)); |
| 271 | if (response() < 0) |
| 272 | return; |
| 273 | first = FALSE0; |
Value stored to 'first' is never read | |
| 274 | } |
| 275 | /* Send command to run and wait for it to complete */ |
| 276 | (void) sendcmd(RC_COMMAND'C', "%s", sc->sc_name); |
| 277 | while (response() > 0) |
| 278 | ; |
| 279 | first = TRUE1; /* Reset in case there are more CMDSPECIAL's */ |
| 280 | } |
| 281 | freecmdspecialfiles(); |
| 282 | } |
| 283 | |
| 284 | /* |
| 285 | * For security, reject filenames that contains a newline |
| 286 | */ |
| 287 | int |
| 288 | checkfilename(char *name) |
| 289 | { |
| 290 | char *cp; |
| 291 | |
| 292 | if (strchr(name, '\n')) { |
| 293 | for (cp = name; *cp; cp++) |
| 294 | if (*cp == '\n') |
| 295 | *cp = '?'; |
| 296 | message(MT_NERROR0x0002, |
| 297 | "Refuse to handle filename containing newline: %s", |
| 298 | name); |
| 299 | return(-1); |
| 300 | } |
| 301 | |
| 302 | return(0); |
| 303 | } |
| 304 | |
| 305 | void |
| 306 | freelinkinfo(struct linkbuf *lp) |
| 307 | { |
| 308 | free(lp->pathname); |
| 309 | free(lp->src); |
| 310 | free(lp->target); |
| 311 | free(lp); |
| 312 | } |
| 313 | |
| 314 | /* |
| 315 | * Save and retrieve hard link info |
| 316 | */ |
| 317 | static struct linkbuf * |
| 318 | linkinfo(struct stat *statp) |
| 319 | { |
| 320 | struct linkbuf *lp; |
| 321 | |
| 322 | /* XXX - linear search doesn't scale with many links */ |
| 323 | for (lp = ihead; lp != NULL((void *)0); lp = lp->nextp) |
| 324 | if (lp->inum == statp->st_ino && lp->devnum == statp->st_dev) { |
| 325 | lp->count--; |
| 326 | return(lp); |
| 327 | } |
| 328 | |
| 329 | lp = xmalloc(sizeof(*lp)); |
| 330 | lp->nextp = ihead; |
| 331 | ihead = lp; |
| 332 | lp->inum = statp->st_ino; |
| 333 | lp->devnum = statp->st_dev; |
| 334 | lp->count = statp->st_nlink - 1; |
| 335 | lp->pathname = xstrdup(target); |
| 336 | lp->src = xstrdup(source); |
| 337 | if (Tdest) |
| 338 | lp->target = xstrdup(Tdest); |
| 339 | else |
| 340 | lp->target = NULL((void *)0); |
| 341 | |
| 342 | return(NULL((void *)0)); |
| 343 | } |
| 344 | |
| 345 | /* |
| 346 | * Send a hardlink |
| 347 | */ |
| 348 | static int |
| 349 | sendhardlink(opt_t opts, struct linkbuf *lp, char *rname, int destdir) |
| 350 | { |
| 351 | static char buff[PATH_MAX1024]; |
| 352 | char *lname; /* name of file to link to */ |
| 353 | char ername[PATH_MAX1024*4], elname[PATH_MAX1024*4]; |
| 354 | |
| 355 | debugmsg(DM_MISC0x10, |
| 356 | "sendhardlink: rname='%s' pathname='%s' src='%s' target='%s'\n", |
| 357 | rname, lp->pathname ? lp->pathname : "", |
| 358 | lp->src ? lp->src : "", lp->target ? lp->target : ""); |
| 359 | |
| 360 | if (lp->target == NULL((void *)0)) |
| 361 | lname = lp->pathname; |
| 362 | else { |
| 363 | lname = buff; |
| 364 | strlcpy(lname, remfilename(lp->src, lp->target, |
| 365 | lp->pathname, rname, |
| 366 | destdir), sizeof(buff)); |
| 367 | debugmsg(DM_MISC0x10, "sendhardlink: lname=%s\n", lname); |
| 368 | } |
| 369 | ENCODE(elname, lname)strvis(elname, lname, (0x04 | 0x08 | 0x10)); |
| 370 | ENCODE(ername, rname)strvis(ername, rname, (0x04 | 0x08 | 0x10)); |
| 371 | (void) sendcmd(C_RECVHARDLINK'k', "%o %s %s", opts, elname, ername); |
| 372 | |
| 373 | return(response()); |
| 374 | } |
| 375 | |
| 376 | /* |
| 377 | * Send a file |
| 378 | */ |
| 379 | static int |
| 380 | sendfile(char *rname, opt_t opts, struct stat *stb, char *user, |
| 381 | char *group, int destdir) |
| 382 | { |
| 383 | int goterr, f; |
| 384 | off_t i; |
| 385 | char ername[PATH_MAX1024*4]; |
| 386 | |
| 387 | if (stb->st_nlink > 1) { |
| 388 | struct linkbuf *lp; |
| 389 | |
| 390 | if ((lp = linkinfo(stb)) != NULL((void *)0)) |
| 391 | return(sendhardlink(opts, lp, rname, destdir)); |
| 392 | } |
| 393 | |
| 394 | if ((f = open(target, O_RDONLY0x0000)) == -1) { |
| 395 | error("%s: open for read failed: %s", target, SYSERRstrerror((*__errno()))); |
| 396 | return(-1); |
| 397 | } |
| 398 | |
| 399 | /* |
| 400 | * Send file info |
| 401 | */ |
| 402 | ENCODE(ername, rname)strvis(ername, rname, (0x04 | 0x08 | 0x10)); |
| 403 | |
| 404 | (void) sendcmd(C_RECVREG'R', "%o %04o %lld %lld %lld %s %s %s", |
| 405 | opts, stb->st_mode & 07777, (long long) stb->st_size, |
| 406 | (long long)stb->st_mtimest_mtim.tv_sec, (long long)stb->st_atimest_atim.tv_sec, |
| 407 | user, group, ername); |
| 408 | if (response() < 0) { |
| 409 | (void) close(f); |
| 410 | return(-1); |
| 411 | } |
| 412 | |
| 413 | |
| 414 | debugmsg(DM_MISC0x10, "Send file '%s' %lld bytes\n", rname, |
| 415 | (long long) stb->st_size); |
| 416 | |
| 417 | /* |
| 418 | * Set remote time out alarm handler. |
| 419 | */ |
| 420 | (void) signal(SIGALRM14, sighandler); |
| 421 | |
| 422 | /* |
| 423 | * Actually transfer the file |
| 424 | */ |
| 425 | goterr = 0; |
| 426 | for (i = 0; i < stb->st_size; i += BUFSIZ1024) { |
| 427 | off_t amt = BUFSIZ1024; |
| 428 | |
| 429 | (void) alarm(rtimeout); |
| 430 | if (i + amt > stb->st_size) |
| 431 | amt = stb->st_size - i; |
| 432 | if (read(f, buf, (size_t) amt) != (ssize_t) amt) { |
| 433 | error("%s: File changed size", target); |
| 434 | err()(void) sendcmd('\1', ((void *)0)); |
| 435 | ++goterr; |
| 436 | /* |
| 437 | * XXX - We have to keep going because the |
| 438 | * server expects to receive a fixed number |
| 439 | * of bytes that we specified as the file size. |
| 440 | * We need Out Of Band communication to handle |
| 441 | * this situation gracefully. |
| 442 | */ |
| 443 | } |
| 444 | if (xwrite(rem_w, buf, (size_t) amt) < 0) { |
| 445 | error("%s: Error writing to client: %s", |
| 446 | target, SYSERRstrerror((*__errno()))); |
| 447 | err()(void) sendcmd('\1', ((void *)0)); |
| 448 | ++goterr; |
| 449 | break; |
| 450 | } |
| 451 | (void) alarm(0); |
| 452 | } |
| 453 | |
| 454 | (void) alarm(0); /* Insure alarm is off */ |
| 455 | (void) close(f); |
| 456 | |
| 457 | debugmsg(DM_MISC0x10, "Send file '%s' %s.\n", |
| 458 | (goterr) ? "failed" : "complete", rname); |
| 459 | |
| 460 | /* |
| 461 | * Check for errors and end send |
| 462 | */ |
| 463 | if (goterr) |
| 464 | return(-1); |
| 465 | else { |
| 466 | ack()(void) sendcmd('\5', ((void *)0)); |
| 467 | f = response(); |
| 468 | if (f < 0) |
| 469 | return(-1); |
| 470 | else if (f == 0 && IS_ON(opts, DO_COMPARE)(opts & 0x0000008)) |
| 471 | return(0); |
| 472 | |
| 473 | runspecial(target, opts, rname, destdir); |
| 474 | addcmdspecialfile(target, rname, destdir); |
| 475 | |
| 476 | return(0); |
| 477 | } |
| 478 | } |
| 479 | |
| 480 | /* |
| 481 | * Check for files on the machine being updated that are not on the master |
| 482 | * machine and remove them. |
| 483 | * |
| 484 | * Return < 0 on error. |
| 485 | * Return 0 if nothing happened. |
| 486 | * Return > 0 if anything is updated. |
| 487 | */ |
| 488 | static int |
| 489 | rmchk(opt_t opts) |
| 490 | { |
| 491 | u_char *s; |
| 492 | struct stat stb; |
| 493 | int didupdate = 0; |
| 494 | int n; |
| 495 | char targ[PATH_MAX1024*4]; |
| 496 | |
| 497 | debugmsg(DM_CALL0x01, "rmchk()\n"); |
| 498 | |
| 499 | /* |
| 500 | * Tell the remote to clean the files from the last directory sent. |
| 501 | */ |
| 502 | (void) sendcmd(C_CLEAN'C', "%o", IS_ON(opts, DO_VERIFY)(opts & 0x0000001)); |
| 503 | if (response() < 0) |
| 504 | return(-1); |
| 505 | |
| 506 | for ( ; ; ) { |
| 507 | n = remline(s = respbuff, sizeof(respbuff), TRUE1); |
| 508 | if (n <= 0) { |
| 509 | error("rmchk: unexpected control record"); |
| 510 | return(didupdate); |
| 511 | } |
| 512 | |
| 513 | switch (*s++) { |
| 514 | case CC_QUERY'Q': /* Query if file should be removed */ |
| 515 | /* |
| 516 | * Return the following codes to remove query. |
| 517 | * CC_NO -- file exists - DON'T remove. |
| 518 | * CC_YES -- file doesn't exist - REMOVE. |
| 519 | */ |
| 520 | if (DECODE(targ, (char *) s)strunvis(targ, (char *) s) == -1) { |
| 521 | error("rmchk: cannot decode file"); |
| 522 | return(-1); |
| 523 | } |
| 524 | (void) snprintf(ptarget, |
| 525 | sizeof(target) - (ptarget - target), |
| 526 | "%s%s", |
| 527 | (ptarget[-1] == '/' ? "" : "/"), |
| 528 | targ); |
| 529 | debugmsg(DM_MISC0x10, "check %s\n", target); |
| 530 | if (except(target)) |
| 531 | (void) sendcmd(CC_NO'N', NULL((void *)0)); |
| 532 | else if (lstat(target, &stb) == -1) { |
| 533 | if (sendcmd(CC_YES'Y', NULL((void *)0)) == 0) |
| 534 | didupdate = 1; |
| 535 | } else |
| 536 | (void) sendcmd(CC_NO'N', NULL((void *)0)); |
| 537 | break; |
| 538 | |
| 539 | case CC_END'E': |
| 540 | *ptarget = CNULL'\0'; |
| 541 | ack()(void) sendcmd('\5', ((void *)0)); |
| 542 | return(didupdate); |
| 543 | |
| 544 | case C_LOGMSG'\4': |
| 545 | if (n > 0) |
| 546 | message(MT_INFO0x0040, "%s", s); |
| 547 | break; |
| 548 | |
| 549 | case C_NOTEMSG'\3': |
| 550 | if (n > 0) |
| 551 | message(MT_NOTICE0x0100, "%s", s); |
| 552 | break; |
| 553 | /* Goto top of loop */ |
| 554 | |
| 555 | case C_ERRMSG'\1': |
| 556 | message(MT_NERROR0x0002, "%s", s); |
| 557 | return(didupdate); |
| 558 | |
| 559 | case C_FERRMSG'\2': |
| 560 | message(MT_FERROR0x0004, "%s", s); |
| 561 | finish(); |
| 562 | |
| 563 | default: |
| 564 | error("rmchk: unexpected response '%s'", respbuff); |
| 565 | err()(void) sendcmd('\1', ((void *)0)); |
| 566 | } |
| 567 | } |
| 568 | /*NOTREACHED*/ |
| 569 | } |
| 570 | |
| 571 | /* |
| 572 | * Send a directory |
| 573 | * |
| 574 | * Return < 0 on error. |
| 575 | * Return 0 if nothing happened. |
| 576 | * Return > 0 if anything is updated. |
| 577 | */ |
| 578 | static int |
| 579 | senddir(char *rname, opt_t opts, struct stat *stb, char *user, |
| 580 | char *group, int destdir) |
| 581 | { |
| 582 | struct dirent *dp; |
| 583 | DIR *d; |
| 584 | char *optarget, *cp; |
| 585 | int len; |
| 586 | int didupdate = 0; |
| 587 | char ername[PATH_MAX1024*4]; |
| 588 | |
| 589 | /* |
| 590 | * Send recvdir command in recvit() format. |
| 591 | */ |
| 592 | ENCODE(ername, rname)strvis(ername, rname, (0x04 | 0x08 | 0x10)); |
| 593 | (void) sendcmd(C_RECVDIR'D', "%o %04o 0 0 0 %s %s %s", |
| 594 | opts, stb->st_mode & 07777, user, group, ername); |
| 595 | if (response() < 0) |
| 596 | return(-1); |
| 597 | |
| 598 | optarget = ptarget; |
| 599 | |
| 600 | /* |
| 601 | * Don't descend into directory |
| 602 | */ |
| 603 | if (IS_ON(opts, DO_NODESCEND)(opts & 0x0002000)) { |
| 604 | didupdate = 0; |
| 605 | goto out; |
| 606 | } |
| 607 | |
| 608 | if (IS_ON(opts, DO_REMOVE)(opts & 0x0000010)) |
| 609 | if (rmchk(opts) > 0) |
| 610 | ++didupdate; |
| 611 | |
| 612 | if ((d = opendir(target)) == NULL((void *)0)) { |
| 613 | error("%s: opendir failed: %s", target, SYSERRstrerror((*__errno()))); |
| 614 | didupdate = -1; |
| 615 | goto out; |
| 616 | } |
| 617 | |
| 618 | len = ptarget - target; |
| 619 | while ((dp = readdir(d)) != NULL((void *)0)) { |
| 620 | if (!strcmp(dp->d_name, ".") || |
| 621 | !strcmp(dp->d_name, "..")) |
| 622 | continue; |
| 623 | if (len + 1 + (int) strlen(dp->d_name) >= PATH_MAX1024 - 1) { |
| 624 | error("%s/%s: Name too long", target, |
| 625 | dp->d_name); |
| 626 | continue; |
| 627 | } |
| 628 | ptarget = optarget; |
| 629 | if (ptarget[-1] != '/') |
| 630 | *ptarget++ = '/'; |
| 631 | cp = dp->d_name; |
| 632 | while ((*ptarget++ = *cp++) != '\0') |
| 633 | continue; |
| 634 | ptarget--; |
| 635 | if (sendit(dp->d_name, opts, destdir) > 0) |
| 636 | didupdate = 1; |
| 637 | } |
| 638 | (void) closedir(d); |
| 639 | |
| 640 | out: |
| 641 | (void) sendcmd(C_END'E', NULL((void *)0)); |
| 642 | (void) response(); |
| 643 | |
| 644 | ptarget = optarget; |
| 645 | *ptarget = CNULL'\0'; |
| 646 | |
| 647 | return(didupdate); |
| 648 | } |
| 649 | |
| 650 | /* |
| 651 | * Send a link |
| 652 | */ |
| 653 | static int |
| 654 | sendlink(char *rname, opt_t opts, struct stat *stb, char *user, |
| 655 | char *group, int destdir) |
| 656 | { |
| 657 | int f, n; |
| 658 | static char tbuf[BUFSIZ1024]; |
| 659 | char lbuf[PATH_MAX1024]; |
| 660 | u_char *s; |
| 661 | char ername[PATH_MAX1024*4]; |
| 662 | |
| 663 | debugmsg(DM_CALL0x01, "sendlink(%s, %#x, stb, %d)\n", rname, opts, destdir); |
| 664 | |
| 665 | if (stb->st_nlink > 1) { |
| 666 | struct linkbuf *lp; |
| 667 | |
| 668 | if ((lp = linkinfo(stb)) != NULL((void *)0)) |
| 669 | return(sendhardlink(opts, lp, rname, destdir)); |
| 670 | } |
| 671 | |
| 672 | /* |
| 673 | * Gather and send basic link info |
| 674 | */ |
| 675 | ENCODE(ername, rname)strvis(ername, rname, (0x04 | 0x08 | 0x10)); |
| 676 | (void) sendcmd(C_RECVSYMLINK'K', "%o %04o %lld %lld %lld %s %s %s", |
| 677 | opts, stb->st_mode & 07777, (long long) stb->st_size, |
| 678 | (long long)stb->st_mtimest_mtim.tv_sec, (long long)stb->st_atimest_atim.tv_sec, |
| 679 | user, group, ername); |
| 680 | if (response() < 0) |
| 681 | return(-1); |
| 682 | |
| 683 | /* |
| 684 | * Gather and send additional link info |
| 685 | */ |
| 686 | if ((n = readlink(target, lbuf, sizeof(lbuf)-1)) != -1) |
| 687 | lbuf[n] = '\0'; |
| 688 | else { |
| 689 | error("%s: readlink failed", target); |
| 690 | err()(void) sendcmd('\1', ((void *)0)); |
| 691 | } |
| 692 | (void) snprintf(tbuf, sizeof(tbuf), "%.*s", (int) stb->st_size, lbuf); |
| 693 | ENCODE(ername, tbuf)strvis(ername, tbuf, (0x04 | 0x08 | 0x10)); |
| 694 | (void) sendcmd(C_NONE'=', "%s\n", ername); |
| 695 | |
| 696 | if (n != stb->st_size) { |
| 697 | error("%s: file changed size", target); |
| 698 | err()(void) sendcmd('\1', ((void *)0)); |
| 699 | } else |
| 700 | ack()(void) sendcmd('\5', ((void *)0)); |
| 701 | |
| 702 | /* |
| 703 | * Check response |
| 704 | */ |
| 705 | f = response(); |
| 706 | if (f < 0) |
| 707 | return(-1); |
| 708 | else if (f == 0 && IS_ON(opts, DO_COMPARE)(opts & 0x0000008)) |
| 709 | return(0); |
| 710 | |
| 711 | /* |
| 712 | * Read and process responses from server. |
| 713 | * The server may send multiple messages regarding |
| 714 | * file deletes if the remote target is a directory. |
| 715 | */ |
| 716 | for (;;) { |
| 717 | n = remline(s = respbuff, sizeof(respbuff), TRUE1); |
| 718 | if (n == -1) /* normal EOF */ |
| 719 | return(0); |
| 720 | if (n == 0) { |
| 721 | error("expected control record"); |
| 722 | continue; |
| 723 | } |
| 724 | |
| 725 | switch (*s++) { |
| 726 | case C_END'E': /* End of send operation */ |
| 727 | *ptarget = CNULL'\0'; |
| 728 | ack()(void) sendcmd('\5', ((void *)0)); |
| 729 | runspecial(target, opts, rname, destdir); |
| 730 | addcmdspecialfile(target, rname, destdir); |
| 731 | return(0); |
| 732 | |
| 733 | case C_LOGMSG'\4': |
| 734 | if (n > 0) |
| 735 | message(MT_INFO0x0040, "%s", s); |
| 736 | break; |
| 737 | |
| 738 | case C_NOTEMSG'\3': |
| 739 | if (n > 0) |
| 740 | message(MT_NOTICE0x0100, "%s", s); |
| 741 | break; |
| 742 | /* Goto top of loop */ |
| 743 | |
| 744 | case C_ERRMSG'\1': |
| 745 | message(MT_NERROR0x0002, "%s", s); |
| 746 | return(-1); |
| 747 | |
| 748 | case C_FERRMSG'\2': |
| 749 | message(MT_FERROR0x0004, "%s", s); |
| 750 | finish(); |
| 751 | |
| 752 | default: |
| 753 | error("install link: unexpected response '%s'", |
| 754 | respbuff); |
| 755 | err()(void) sendcmd('\1', ((void *)0)); |
| 756 | } |
| 757 | } |
| 758 | /*NOTREACHED*/ |
| 759 | } |
| 760 | |
| 761 | /* |
| 762 | * Check to see if file needs to be updated on the remote machine. |
| 763 | * Returns: |
| 764 | * US_NOTHING - no update |
| 765 | * US_NOENT - remote doesn't exist |
| 766 | * US_OUTDATE - out of date |
| 767 | * US_DOCOMP - comparing binaries to determine if out of date |
| 768 | * US_CHMOG - File modes or ownership do not match |
| 769 | */ |
| 770 | static int |
| 771 | update(char *rname, opt_t opts, struct stat *statp) |
| 772 | { |
| 773 | off_t size; |
| 774 | time_t mtime; |
| 775 | unsigned short lmode; |
| 776 | unsigned short rmode; |
| 777 | char *owner = NULL((void *)0), *group = NULL((void *)0); |
| 778 | int done, n; |
| 779 | u_char *cp; |
| 780 | char ername[PATH_MAX1024*4]; |
| 781 | |
| 782 | debugmsg(DM_CALL0x01, "update(%s, %#x, %p)\n", rname, opts, statp); |
| 783 | |
| 784 | switch (statp->st_mode & S_IFMT0170000) { |
| 785 | case S_IFBLK0060000: |
| 786 | debugmsg(DM_MISC0x10, "%s is a block special; skipping\n", target); |
| 787 | return(US_NOTHING0); |
| 788 | case S_IFCHR0020000: |
| 789 | debugmsg(DM_MISC0x10, "%s is a character special; skipping\n", |
| 790 | target); |
| 791 | return(US_NOTHING0); |
| 792 | case S_IFIFO0010000: |
| 793 | debugmsg(DM_MISC0x10, "%s is a fifo; skipping\n", target); |
| 794 | return(US_NOTHING0); |
| 795 | case S_IFSOCK0140000: |
| 796 | debugmsg(DM_MISC0x10, "%s is a socket; skipping\n", target); |
| 797 | return(US_NOTHING0); |
| 798 | } |
| 799 | |
| 800 | if (IS_ON(opts, DO_NOEXEC)(opts & 0x0000800)) |
| 801 | if (isexec(target, statp)) { |
| 802 | debugmsg(DM_MISC0x10, "%s is an executable\n", target); |
| 803 | return(US_NOTHING0); |
| 804 | } |
| 805 | |
| 806 | /* |
| 807 | * Check to see if the file exists on the remote machine. |
| 808 | */ |
| 809 | ENCODE(ername, rname)strvis(ername, rname, (0x04 | 0x08 | 0x10)); |
| 810 | (void) sendcmd(C_QUERY'Q', "%s", ername); |
| 811 | |
| 812 | for (done = 0; !done;) { |
| 813 | n = remline(cp = respbuff, sizeof(respbuff), TRUE1); |
| 814 | if (n <= 0) { |
| 815 | error("update: unexpected control record in response to query"); |
| 816 | return(US_NOTHING0); |
| 817 | } |
| 818 | |
| 819 | switch (*cp++) { |
| 820 | case QC_ONNFS'F': /* Resides on a NFS */ |
| 821 | debugmsg(DM_MISC0x10, |
| 822 | "update: %s is on a NFS. Skipping...\n", |
| 823 | rname); |
| 824 | return(US_NOTHING0); |
| 825 | |
| 826 | case QC_SYM'l': /* Is a symbolic link */ |
| 827 | debugmsg(DM_MISC0x10, |
| 828 | "update: %s is a symlink. Skipping...\n", |
| 829 | rname); |
| 830 | return(US_NOTHING0); |
| 831 | |
| 832 | case QC_ONRO'O': /* Resides on a Read-Only fs */ |
| 833 | debugmsg(DM_MISC0x10, |
| 834 | "update: %s is on a RO fs. Skipping...\n", |
| 835 | rname); |
| 836 | return(US_NOTHING0); |
| 837 | |
| 838 | case QC_YES'Y': |
| 839 | done = 1; |
| 840 | break; |
| 841 | |
| 842 | case QC_NO'N': /* file doesn't exist so install it */ |
| 843 | return(US_NOENT1); |
| 844 | |
| 845 | case C_ERRMSG'\1': |
| 846 | if (cp) |
| 847 | message(MT_NERROR0x0002, "%s", cp); |
| 848 | return(US_NOTHING0); |
| 849 | |
| 850 | case C_FERRMSG'\2': |
| 851 | if (cp) |
| 852 | message(MT_FERROR0x0004, "%s", cp); |
| 853 | finish(); |
| 854 | |
| 855 | case C_NOTEMSG'\3': |
| 856 | if (cp) |
| 857 | message(MT_NOTICE0x0100, "%s", cp); |
| 858 | break; |
| 859 | /* Goto top of loop */ |
| 860 | |
| 861 | default: |
| 862 | error("update: unexpected response to query '%s'", respbuff); |
| 863 | return(US_NOTHING0); |
| 864 | } |
| 865 | } |
| 866 | |
| 867 | /* |
| 868 | * Target exists, but no other info passed |
| 869 | */ |
| 870 | if (n <= 1 || !S_ISREG(statp->st_mode)((statp->st_mode & 0170000) == 0100000)) |
| 871 | return(US_OUTDATE2); |
| 872 | |
| 873 | if (IS_ON(opts, DO_COMPARE)(opts & 0x0000008)) |
| 874 | return(US_DOCOMP3); |
| 875 | |
| 876 | /* |
| 877 | * Parse size |
| 878 | */ |
| 879 | size = (off_t) strtoll(cp, (char **)&cp, 10); |
| 880 | if (*cp++ != ' ') { |
| 881 | error("update: size not delimited"); |
| 882 | return(US_NOTHING0); |
| 883 | } |
| 884 | |
| 885 | /* |
| 886 | * Parse mtime |
| 887 | */ |
| 888 | mtime = strtol(cp, (char **)&cp, 10); |
| 889 | if (*cp++ != ' ') { |
| 890 | error("update: mtime not delimited"); |
| 891 | return(US_NOTHING0); |
| 892 | } |
| 893 | |
| 894 | /* |
| 895 | * Parse remote file mode |
| 896 | */ |
| 897 | rmode = strtol(cp, (char **)&cp, 8); |
| 898 | if (cp && *cp) |
| 899 | ++cp; |
| 900 | |
| 901 | /* |
| 902 | * Be backwards compatible |
| 903 | */ |
| 904 | if (cp && *cp != CNULL'\0') { |
| 905 | /* |
| 906 | * Parse remote file owner |
| 907 | */ |
| 908 | owner = strtok((char *)cp, " "); |
| 909 | if (owner == NULL((void *)0)) { |
| 910 | error("update: owner not delimited"); |
| 911 | return(US_NOTHING0); |
| 912 | } |
| 913 | |
| 914 | /* |
| 915 | * Parse remote file group |
| 916 | */ |
| 917 | group = strtok(NULL((void *)0), " "); |
| 918 | if (group == NULL((void *)0)) { |
| 919 | error("update: group not delimited"); |
| 920 | return(US_NOTHING0); |
| 921 | } |
| 922 | } |
| 923 | |
| 924 | /* |
| 925 | * File needs to be updated? |
| 926 | */ |
| 927 | lmode = statp->st_mode & 07777; |
| 928 | |
| 929 | debugmsg(DM_MISC0x10, "update(%s,) local mode %#04o remote mode %#04o\n", |
| 930 | rname, lmode, rmode); |
| 931 | debugmsg(DM_MISC0x10, "update(%s,) size %lld mtime %lld owner '%s' grp '%s'" |
| 932 | "\n", rname, (long long) size, (long long)mtime, owner, group); |
| 933 | |
| 934 | if (statp->st_mtimest_mtim.tv_sec != mtime) { |
| 935 | if (statp->st_mtimest_mtim.tv_sec < mtime && IS_ON(opts, DO_YOUNGER)(opts & 0x0000004)) { |
| 936 | message(MT_WARNING0x0010, |
| 937 | "%s: Warning: remote copy is newer", |
| 938 | target); |
| 939 | return(US_NOTHING0); |
| 940 | } |
| 941 | return(US_OUTDATE2); |
| 942 | } |
| 943 | |
| 944 | if (statp->st_size != size) { |
| 945 | debugmsg(DM_MISC0x10, "size does not match (%lld != %lld).\n", |
| 946 | (long long) statp->st_size, (long long) size); |
| 947 | return(US_OUTDATE2); |
| 948 | } |
| 949 | |
| 950 | if (!IS_ON(opts, DO_NOCHKMODE)(opts & 0x0008000) && lmode != rmode) { |
| 951 | debugmsg(DM_MISC0x10, "modes do not match (%#04o != %#04o).\n", |
| 952 | lmode, rmode); |
| 953 | return(US_CHMOG4); |
| 954 | } |
| 955 | |
| 956 | |
| 957 | /* |
| 958 | * Check ownership |
| 959 | */ |
| 960 | if (!IS_ON(opts, DO_NOCHKOWNER)(opts & 0x0004000) && owner) { |
| 961 | if (!IS_ON(opts, DO_NUMCHKOWNER)(opts & 0x0080000)) { |
| 962 | /* Check by string compare */ |
| 963 | if (strcmp(owner, getusername(statp->st_uid, |
| 964 | target, opts)) != 0) { |
| 965 | debugmsg(DM_MISC0x10, |
| 966 | "owner does not match (%s != %s).\n", |
| 967 | getusername(statp->st_uid, |
| 968 | target, opts), owner); |
| 969 | return(US_CHMOG4); |
| 970 | } |
| 971 | } else { |
| 972 | /* |
| 973 | * Check numerically. |
| 974 | * Allow negative numbers. |
| 975 | */ |
| 976 | while (*owner && !isdigit((unsigned char)*owner) && |
| 977 | (*owner != '-')) |
| 978 | ++owner; |
| 979 | if (owner && (uid_t)atoi(owner) != statp->st_uid) { |
| 980 | debugmsg(DM_MISC0x10, |
| 981 | "owner does not match (%d != %s).\n", |
| 982 | statp->st_uid, owner); |
| 983 | return(US_CHMOG4); |
| 984 | } |
| 985 | } |
| 986 | } |
| 987 | |
| 988 | if (!IS_ON(opts, DO_NOCHKGROUP)(opts & 0x0010000) && group) { |
| 989 | if (!IS_ON(opts, DO_NUMCHKGROUP)(opts & 0x0040000)) { |
| 990 | /* Check by string compare */ |
| 991 | if (strcmp(group, getgroupname(statp->st_gid, |
| 992 | target, opts)) != 0) { |
| 993 | debugmsg(DM_MISC0x10, |
| 994 | "group does not match (%s != %s).\n", |
| 995 | getgroupname(statp->st_gid, |
| 996 | target, opts), group); |
| 997 | return(US_CHMOG4); |
| 998 | } |
| 999 | } else { |
| 1000 | /* Check numerically */ |
| 1001 | /* Allow negative gid */ |
| 1002 | while (*group && !isdigit((unsigned char) *group) && |
| 1003 | (*group != '-')) |
| 1004 | ++group; |
| 1005 | if (group && (gid_t)atoi(group) != statp->st_gid) { |
| 1006 | debugmsg(DM_MISC0x10, |
| 1007 | "group does not match (%d != %s).\n", |
| 1008 | statp->st_gid, group); |
| 1009 | return(US_CHMOG4); |
| 1010 | } |
| 1011 | } |
| 1012 | } |
| 1013 | |
| 1014 | return(US_NOTHING0); |
| 1015 | } |
| 1016 | |
| 1017 | /* |
| 1018 | * Stat a file |
| 1019 | */ |
| 1020 | static int |
| 1021 | dostat(char *file, struct stat *statbuf, opt_t opts) |
| 1022 | { |
| 1023 | int s; |
| 1024 | |
| 1025 | if (IS_ON(opts, DO_FOLLOW)(opts & 0x0000020)) |
| 1026 | s = stat(file, statbuf); |
| 1027 | else |
| 1028 | s = lstat(file, statbuf); |
| 1029 | |
| 1030 | if (s == -1) |
| 1031 | error("%s: %s failed: %s", file, |
| 1032 | IS_ON(opts, DO_FOLLOW)(opts & 0x0000020) ? "stat" : "lstat", SYSERRstrerror((*__errno()))); |
| 1033 | return(s); |
| 1034 | } |
| 1035 | |
| 1036 | /* |
| 1037 | * We need to just change file info. |
| 1038 | */ |
| 1039 | static int |
| 1040 | statupdate(int u, char *starget, opt_t opts, char *rname, int destdir, |
| 1041 | struct stat *st, char *user, char *group) |
| 1042 | { |
| 1043 | int rv = 0; |
| 1044 | char ername[PATH_MAX1024*4]; |
| 1045 | int lmode = st->st_mode & 07777; |
| 1046 | |
| 1047 | if (u == US_CHMOG4) { |
| 1048 | if (IS_ON(opts, DO_VERIFY)(opts & 0x0000001)) { |
| 1049 | message(MT_INFO0x0040, |
| 1050 | "%s: need to change to perm %#04o, owner %s, group %s", |
| 1051 | starget, lmode, user, group); |
| 1052 | runspecial(starget, opts, rname, destdir); |
| 1053 | } |
| 1054 | else { |
| 1055 | message(MT_CHANGE0x0020, "%s: change to perm %#04o, owner %s, group %s", |
| 1056 | starget, lmode, user, group); |
| 1057 | ENCODE(ername, rname)strvis(ername, rname, (0x04 | 0x08 | 0x10)); |
| 1058 | (void) sendcmd(C_CHMOG'M', "%o %04o %s %s %s", |
| 1059 | opts, lmode, user, group, ername); |
| 1060 | (void) response(); |
| 1061 | } |
| 1062 | rv = 1; |
| 1063 | } |
| 1064 | return(rv); |
| 1065 | } |
| 1066 | |
| 1067 | |
| 1068 | /* |
| 1069 | * We need to install/update: |
| 1070 | */ |
| 1071 | static int |
| 1072 | fullupdate(int u, char *starget, opt_t opts, char *rname, int destdir, |
| 1073 | struct stat *st, char *user, char *group) |
| 1074 | { |
| 1075 | /* |
| 1076 | * No entry - need to install |
| 1077 | */ |
| 1078 | if (u == US_NOENT1) { |
| 1079 | if (IS_ON(opts, DO_VERIFY)(opts & 0x0000001)) { |
| 1080 | message(MT_INFO0x0040, "%s: need to install", starget); |
| 1081 | runspecial(starget, opts, rname, destdir); |
| 1082 | return(1); |
| 1083 | } |
| 1084 | if (!IS_ON(opts, DO_QUIET)(opts & 0x0000100)) |
| 1085 | message(MT_CHANGE0x0020, "%s: installing", starget); |
| 1086 | FLAG_OFF(opts, (DO_COMPARE|DO_REMOVE))opts &= ~((0x0000008|0x0000010)); |
| 1087 | } |
| 1088 | |
| 1089 | /* |
| 1090 | * Handle special file types, including directories and symlinks |
| 1091 | */ |
| 1092 | if (S_ISDIR(st->st_mode)((st->st_mode & 0170000) == 0040000)) { |
| 1093 | if (senddir(rname, opts, st, user, group, destdir) > 0) |
| 1094 | return(1); |
| 1095 | return(0); |
| 1096 | } else if (S_ISLNK(st->st_mode)((st->st_mode & 0170000) == 0120000)) { |
| 1097 | if (u == US_NOENT1) |
| 1098 | FLAG_ON(opts, DO_COMPARE)opts |= 0x0000008; |
| 1099 | /* |
| 1100 | * Since we always send link info to the server |
| 1101 | * so the server can determine if the remote link |
| 1102 | * is correct, we never get any acknowledgement |
| 1103 | * from the server whether the link was really |
| 1104 | * updated or not. |
| 1105 | */ |
| 1106 | (void) sendlink(rname, opts, st, user, group, destdir); |
| 1107 | return(0); |
| 1108 | } else if (S_ISREG(st->st_mode)((st->st_mode & 0170000) == 0100000)) { |
| 1109 | if (u == US_OUTDATE2) { |
| 1110 | if (IS_ON(opts, DO_VERIFY)(opts & 0x0000001)) { |
| 1111 | message(MT_INFO0x0040, "%s: need to update", starget); |
| 1112 | runspecial(starget, opts, rname, destdir); |
| 1113 | return(1); |
| 1114 | } |
| 1115 | if (!IS_ON(opts, DO_QUIET)(opts & 0x0000100)) |
| 1116 | message(MT_CHANGE0x0020, "%s: updating", starget); |
| 1117 | } |
| 1118 | return (sendfile(rname, opts, st, user, group, destdir) == 0); |
| 1119 | } else { |
| 1120 | message(MT_INFO0x0040, "%s: unknown file type %#o", starget, |
| 1121 | st->st_mode); |
| 1122 | return(0); |
| 1123 | } |
| 1124 | } |
| 1125 | |
| 1126 | /* |
| 1127 | * Transfer the file or directory in target[]. |
| 1128 | * rname is the name of the file on the remote host. |
| 1129 | * |
| 1130 | * Return < 0 on error. |
| 1131 | * Return 0 if nothing happened. |
| 1132 | * Return > 0 if anything is updated. |
| 1133 | */ |
| 1134 | static int |
| 1135 | sendit(char *rname, opt_t opts, int destdir) |
| 1136 | { |
| 1137 | static struct stat stb; |
| 1138 | char *user, *group; |
| 1139 | int u, len; |
| 1140 | |
| 1141 | /* |
| 1142 | * Remove possible accidental newline |
| 1143 | */ |
| 1144 | len = strlen(rname); |
| 1145 | if (len > 0 && rname[len-1] == '\n') |
| 1146 | rname[len-1] = CNULL'\0'; |
| 1147 | |
| 1148 | if (checkfilename(rname) != 0) |
| 1149 | return(-1); |
| 1150 | |
| 1151 | debugmsg(DM_CALL0x01, "sendit(%s, %#x) called\n", rname, opts); |
| 1152 | |
| 1153 | if (except(target)) |
| 1154 | return(0); |
| 1155 | |
| 1156 | if (dostat(target, &stb, opts) < 0) |
| 1157 | return(-1); |
| 1158 | |
| 1159 | /* |
| 1160 | * Does rname need updating? |
| 1161 | */ |
| 1162 | u = update(rname, opts, &stb); |
| 1163 | debugmsg(DM_MISC0x10, "sendit(%s, %#x): update status of %s is %d\n", |
| 1164 | rname, opts, target, u); |
| 1165 | |
| 1166 | /* |
| 1167 | * Don't need to update the file, but we may need to save hardlink |
| 1168 | * info. |
| 1169 | */ |
| 1170 | if (u == US_NOTHING0) { |
| 1171 | if (S_ISREG(stb.st_mode)((stb.st_mode & 0170000) == 0100000) && stb.st_nlink > 1) |
| 1172 | (void) linkinfo(&stb); |
| 1173 | return(0); |
| 1174 | } |
| 1175 | |
| 1176 | user = getusername(stb.st_uid, target, opts); |
| 1177 | group = getgroupname(stb.st_gid, target, opts); |
| 1178 | |
| 1179 | if (u == US_CHMOG4 && IS_OFF(opts, DO_UPDATEPERM)!((opts & 0x0200000))) |
| 1180 | u = US_OUTDATE2; |
| 1181 | |
| 1182 | if (u == US_NOENT1 || u == US_OUTDATE2 || u == US_DOCOMP3) |
| 1183 | return(fullupdate(u, target, opts, rname, destdir, &stb, |
| 1184 | user, group)); |
| 1185 | |
| 1186 | if (u == US_CHMOG4) |
| 1187 | return(statupdate(u, target, opts, rname, destdir, &stb, |
| 1188 | user, group)); |
| 1189 | |
| 1190 | return(0); |
| 1191 | } |
| 1192 | |
| 1193 | /* |
| 1194 | * Remove temporary files and do any cleanup operations before exiting. |
| 1195 | */ |
| 1196 | void |
| 1197 | cleanup(int dummy) |
| 1198 | { |
| 1199 | char *file; |
| 1200 | |
| 1201 | if ((file = getnotifyfile()) != NULL((void *)0)) |
| 1202 | (void) unlink(file); |
| 1203 | } |
| 1204 | |
| 1205 | /* |
| 1206 | * Update the file(s) if they are different. |
| 1207 | * destdir = 1 if destination should be a directory |
| 1208 | * (i.e., more than one source is being copied to the same destination). |
| 1209 | * |
| 1210 | * Return < 0 on error. |
| 1211 | * Return 0 if nothing updated. |
| 1212 | * Return > 0 if something was updated. |
| 1213 | */ |
| 1214 | int |
| 1215 | install(char *src, char *dest, int ddir, int destdir, opt_t opts) |
| 1216 | { |
| 1217 | static char destcopy[PATH_MAX1024]; |
| 1218 | char *rname; |
| 1219 | int didupdate = 0; |
| 1220 | char ername[PATH_MAX1024*4]; |
| 1221 | |
| 1222 | debugmsg(DM_CALL0x01, |
| 1223 | "install(src=%s,dest=%s,ddir=%d,destdir=%d,opts=%#x) start\n", |
| 1224 | (src?src:"NULL"), (dest?dest:"NULL"), ddir, destdir, opts); |
| 1225 | /* |
| 1226 | * Save source name |
| 1227 | */ |
| 1228 | if (IS_ON(opts, DO_WHOLE)(opts & 0x0000002)) |
| 1229 | source[0] = CNULL'\0'; |
| 1230 | else |
| 1231 | (void) strlcpy(source, src, sizeof(source)); |
| 1232 | |
| 1233 | if (dest == NULL((void *)0)) { |
| 1234 | FLAG_OFF(opts, DO_WHOLE)opts &= ~(0x0000002); /* WHOLE only useful if renaming */ |
| 1235 | dest = src; |
| 1236 | } |
| 1237 | |
| 1238 | if (checkfilename(dest) != 0) |
| 1239 | return(-1); |
| 1240 | |
| 1241 | if (nflag || debug) { |
| 1242 | static char buff[BUFSIZ1024]; |
| 1243 | char *cp; |
| 1244 | |
| 1245 | cp = getondistoptlist(opts); |
| 1246 | (void) snprintf(buff, sizeof(buff), "%s%s%s %s %s", |
| 1247 | IS_ON(opts, DO_VERIFY)(opts & 0x0000001) ? "verify" : "install", |
| 1248 | (cp) ? " -o" : "", (cp) ? cp : "", |
| 1249 | src, dest); |
| 1250 | if (nflag) { |
| 1251 | printf("%s\n", buff); |
| 1252 | return(0); |
| 1253 | } else |
| 1254 | debugmsg(DM_MISC0x10, "%s\n", buff); |
| 1255 | } |
| 1256 | |
| 1257 | rname = exptilde(target, src, sizeof(target)); |
| 1258 | if (rname == NULL((void *)0)) |
| 1259 | return(-1); |
| 1260 | ptarget = target; |
| 1261 | while (*ptarget) |
| 1262 | ptarget++; |
| 1263 | /* |
| 1264 | * If we are renaming a directory and we want to preserve |
| 1265 | * the directory hierarchy (-w), we must strip off the leading |
| 1266 | * directory name and preserve the rest. |
| 1267 | */ |
| 1268 | if (IS_ON(opts, DO_WHOLE)(opts & 0x0000002)) { |
| 1269 | while (*rname == '/') |
| 1270 | rname++; |
| 1271 | ddir = 1; |
| 1272 | destdir = 1; |
| 1273 | } else { |
| 1274 | rname = strrchr(target, '/'); |
| 1275 | /* Check if no '/' or target ends in '/' */ |
| 1276 | if (rname == NULL((void *)0) || |
| 1277 | rname+1 == NULL((void *)0) || |
| 1278 | *(rname+1) == CNULL'\0') |
| 1279 | rname = target; |
| 1280 | else |
| 1281 | rname++; |
| 1282 | } |
| 1283 | |
| 1284 | debugmsg(DM_MISC0x10, |
| 1285 | "install: target=%s src=%s rname=%s dest='%s' destdir=%d, ddir=%d\n", |
| 1286 | target, source, rname, dest, destdir, ddir); |
| 1287 | |
| 1288 | /* |
| 1289 | * Pass the destination file/directory name to remote. |
| 1290 | */ |
| 1291 | ENCODE(ername, dest)strvis(ername, dest, (0x04 | 0x08 | 0x10)); |
| 1292 | if (ddir) |
| 1293 | (void) sendcmd(C_DIRTARGET'T', "%o %s", opts, ername); |
| 1294 | else |
| 1295 | (void) sendcmd(C_TARGET't', "%o %s", opts, ername); |
| 1296 | if (response() < 0) |
| 1297 | return(-1); |
| 1298 | |
| 1299 | /* |
| 1300 | * Save the name of the remote target destination if we are |
| 1301 | * in WHOLE mode (destdir > 0) or if the source and destination |
| 1302 | * are not the same. This info will be used later for maintaining |
| 1303 | * hardlink info. |
| 1304 | */ |
| 1305 | if (destdir || (src && dest && strcmp(src, dest))) { |
| 1306 | (void) strlcpy(destcopy, dest, sizeof(destcopy)); |
| 1307 | Tdest = destcopy; |
| 1308 | } |
| 1309 | |
| 1310 | didupdate = sendit(rname, opts, destdir); |
| 1311 | Tdest = 0; |
| 1312 | |
| 1313 | return(didupdate); |
| 1314 | } |