Annotation of embedaddon/rsync/rsync.c, revision 1.1
1.1 ! misho 1: /*
! 2: * Routines common to more than one of the rsync processes.
! 3: *
! 4: * Copyright (C) 1996 Andrew Tridgell
! 5: * Copyright (C) 1996 Paul Mackerras
! 6: * Copyright (C) 2003-2009 Wayne Davison
! 7: *
! 8: * This program is free software; you can redistribute it and/or modify
! 9: * it under the terms of the GNU General Public License as published by
! 10: * the Free Software Foundation; either version 3 of the License, or
! 11: * (at your option) any later version.
! 12: *
! 13: * This program is distributed in the hope that it will be useful,
! 14: * but WITHOUT ANY WARRANTY; without even the implied warranty of
! 15: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
! 16: * GNU General Public License for more details.
! 17: *
! 18: * You should have received a copy of the GNU General Public License along
! 19: * with this program; if not, visit the http://fsf.org website.
! 20: */
! 21:
! 22: #include "rsync.h"
! 23: #include "ifuncs.h"
! 24: #if defined HAVE_LIBCHARSET_H && defined HAVE_LOCALE_CHARSET
! 25: #include <libcharset.h>
! 26: #elif defined HAVE_LANGINFO_H && defined HAVE_NL_LANGINFO
! 27: #include <langinfo.h>
! 28: #endif
! 29:
! 30: extern int verbose;
! 31: extern int dry_run;
! 32: extern int preserve_acls;
! 33: extern int preserve_xattrs;
! 34: extern int preserve_perms;
! 35: extern int preserve_executability;
! 36: extern int preserve_times;
! 37: extern int am_root;
! 38: extern int am_server;
! 39: extern int am_sender;
! 40: extern int am_receiver;
! 41: extern int am_generator;
! 42: extern int am_starting_up;
! 43: extern int allow_8bit_chars;
! 44: extern int protocol_version;
! 45: extern int inc_recurse;
! 46: extern int inplace;
! 47: extern int flist_eof;
! 48: extern int keep_dirlinks;
! 49: extern int make_backups;
! 50: extern struct file_list *cur_flist, *first_flist, *dir_flist;
! 51: extern struct chmod_mode_struct *daemon_chmod_modes;
! 52: #ifdef ICONV_OPTION
! 53: extern char *iconv_opt;
! 54: #endif
! 55:
! 56: #ifdef ICONV_CONST
! 57: iconv_t ic_chck = (iconv_t)-1;
! 58: # ifdef ICONV_OPTION
! 59: iconv_t ic_send = (iconv_t)-1, ic_recv = (iconv_t)-1;
! 60: # endif
! 61:
! 62: static const char *default_charset(void)
! 63: {
! 64: # if defined HAVE_LIBCHARSET_H && defined HAVE_LOCALE_CHARSET
! 65: return locale_charset();
! 66: # elif defined HAVE_LANGINFO_H && defined HAVE_NL_LANGINFO
! 67: return nl_langinfo(CODESET);
! 68: # else
! 69: return ""; /* Works with (at the very least) gnu iconv... */
! 70: # endif
! 71: }
! 72:
! 73: void setup_iconv(void)
! 74: {
! 75: const char *defset = default_charset();
! 76: # ifdef ICONV_OPTION
! 77: const char *charset;
! 78: char *cp;
! 79: # endif
! 80:
! 81: if (!am_server && !allow_8bit_chars) {
! 82: /* It's OK if this fails... */
! 83: ic_chck = iconv_open(defset, defset);
! 84:
! 85: if (verbose > 3) {
! 86: if (ic_chck == (iconv_t)-1) {
! 87: rprintf(FINFO,
! 88: "note: iconv_open(\"%s\", \"%s\") failed (%d)"
! 89: " -- using isprint() instead of iconv().\n",
! 90: defset, defset, errno);
! 91: } else {
! 92: rprintf(FINFO,
! 93: "note: iconv_open(\"%s\", \"%s\") succeeded.\n",
! 94: defset, defset);
! 95: }
! 96: }
! 97: }
! 98:
! 99: # ifdef ICONV_OPTION
! 100: if (!iconv_opt)
! 101: return;
! 102:
! 103: if ((cp = strchr(iconv_opt, ',')) != NULL) {
! 104: if (am_server) /* A local transfer needs this. */
! 105: iconv_opt = cp + 1;
! 106: else
! 107: *cp = '\0';
! 108: }
! 109:
! 110: if (!*iconv_opt || (*iconv_opt == '.' && iconv_opt[1] == '\0'))
! 111: charset = defset;
! 112: else
! 113: charset = iconv_opt;
! 114:
! 115: if ((ic_send = iconv_open(UTF8_CHARSET, charset)) == (iconv_t)-1) {
! 116: rprintf(FERROR, "iconv_open(\"%s\", \"%s\") failed\n",
! 117: UTF8_CHARSET, charset);
! 118: exit_cleanup(RERR_UNSUPPORTED);
! 119: }
! 120:
! 121: if ((ic_recv = iconv_open(charset, UTF8_CHARSET)) == (iconv_t)-1) {
! 122: rprintf(FERROR, "iconv_open(\"%s\", \"%s\") failed\n",
! 123: charset, UTF8_CHARSET);
! 124: exit_cleanup(RERR_UNSUPPORTED);
! 125: }
! 126:
! 127: if (verbose > 1) {
! 128: rprintf(FINFO, "%s charset: %s\n",
! 129: am_server ? "server" : "client",
! 130: *charset ? charset : "[LOCALE]");
! 131: }
! 132: # endif
! 133: }
! 134:
! 135: /* This function converts the characters in the "in" xbuf into characters
! 136: * in the "out" xbuf. The "len" of the "in" xbuf is used starting from its
! 137: * "pos". The "size" of the "out" xbuf restricts how many characters can be
! 138: * stored, starting at its "pos+len" position. Note that the last byte of
! 139: * the buffer is never used, which reserves space for a terminating '\0'.
! 140: * We return a 0 on success or a -1 on error. An error also sets errno to
! 141: * E2BIG, EILSEQ, or EINVAL (see below); otherwise errno will be set to 0.
! 142: * The "in" xbuf is altered to update "pos" and "len". The "out" xbuf has
! 143: * data appended, and its "len" incremented. If ICB_EXPAND_OUT is set in
! 144: * "flags", the "out" xbuf will also be allocated if empty, and expanded if
! 145: * too small (so E2BIG will not be returned). If ICB_INCLUDE_BAD is set in
! 146: * "flags", any badly-encoded chars are included verbatim in the "out" xbuf,
! 147: * so EILSEQ will not be returned. Likewise for ICB_INCLUDE_INCOMPLETE with
! 148: * respect to an incomplete multi-byte char at the end, which ensures that
! 149: * EINVAL is not returned. Anytime "in.pos" is 0 we will reset the iconv()
! 150: * state prior to processing the characters. */
! 151: int iconvbufs(iconv_t ic, xbuf *in, xbuf *out, int flags)
! 152: {
! 153: ICONV_CONST char *ibuf;
! 154: size_t icnt, ocnt;
! 155: char *obuf;
! 156:
! 157: if (!out->size && flags & ICB_EXPAND_OUT)
! 158: alloc_xbuf(out, 1024);
! 159:
! 160: if (!in->pos)
! 161: iconv(ic, NULL, 0, NULL, 0);
! 162:
! 163: ibuf = in->buf + in->pos;
! 164: icnt = in->len;
! 165:
! 166: obuf = out->buf + (out->pos + out->len);
! 167: ocnt = out->size - (out->pos + out->len) - 1;
! 168:
! 169: while (icnt) {
! 170: while (iconv(ic, &ibuf, &icnt, &obuf, &ocnt) == (size_t)-1) {
! 171: if (errno == EINTR)
! 172: continue;
! 173: if (errno == EINVAL) {
! 174: if (!(flags & ICB_INCLUDE_INCOMPLETE))
! 175: goto finish;
! 176: } else if (errno == EILSEQ) {
! 177: if (!(flags & ICB_INCLUDE_BAD))
! 178: goto finish;
! 179: } else {
! 180: size_t opos = obuf - out->buf;
! 181: if (!(flags & ICB_EXPAND_OUT)) {
! 182: errno = E2BIG;
! 183: goto finish;
! 184: }
! 185: realloc_xbuf(out, out->size + 1024);
! 186: obuf = out->buf + opos;
! 187: ocnt += 1024;
! 188: continue;
! 189: }
! 190: *obuf++ = *ibuf++;
! 191: ocnt--, icnt--;
! 192: }
! 193: }
! 194:
! 195: errno = 0;
! 196:
! 197: finish:
! 198: in->len = icnt;
! 199: in->pos = ibuf - in->buf;
! 200: out->len = obuf - out->buf - out->pos;
! 201:
! 202: return errno ? -1 : 0;
! 203: }
! 204: #endif
! 205:
! 206: void send_protected_args(int fd, char *args[])
! 207: {
! 208: int i;
! 209: #ifdef ICONV_OPTION
! 210: int convert = ic_send != (iconv_t)-1;
! 211: xbuf outbuf, inbuf;
! 212:
! 213: if (convert)
! 214: alloc_xbuf(&outbuf, 1024);
! 215: #endif
! 216:
! 217: for (i = 0; args[i]; i++) {} /* find first NULL */
! 218: args[i] = "rsync"; /* set a new arg0 */
! 219: if (verbose > 1)
! 220: print_child_argv("protected args:", args + i + 1);
! 221: do {
! 222: if (!args[i][0])
! 223: write_buf(fd, ".", 2);
! 224: #ifdef ICONV_OPTION
! 225: else if (convert) {
! 226: INIT_XBUF_STRLEN(inbuf, args[i]);
! 227: iconvbufs(ic_send, &inbuf, &outbuf,
! 228: ICB_EXPAND_OUT | ICB_INCLUDE_BAD | ICB_INCLUDE_INCOMPLETE);
! 229: outbuf.buf[outbuf.len] = '\0';
! 230: write_buf(fd, outbuf.buf, outbuf.len + 1);
! 231: outbuf.len = 0;
! 232: }
! 233: #endif
! 234: else
! 235: write_buf(fd, args[i], strlen(args[i]) + 1);
! 236: } while (args[++i]);
! 237: write_byte(fd, 0);
! 238:
! 239: #ifdef ICONV_OPTION
! 240: if (convert)
! 241: free(outbuf.buf);
! 242: #endif
! 243: }
! 244:
! 245: int read_ndx_and_attrs(int f_in, int *iflag_ptr, uchar *type_ptr,
! 246: char *buf, int *len_ptr)
! 247: {
! 248: int len, iflags = 0;
! 249: struct file_list *flist;
! 250: uchar fnamecmp_type = FNAMECMP_FNAME;
! 251: int ndx, save_verbose = verbose;
! 252:
! 253: read_loop:
! 254: while (1) {
! 255: ndx = read_ndx(f_in);
! 256:
! 257: if (ndx >= 0)
! 258: break;
! 259: if (ndx == NDX_DONE)
! 260: return ndx;
! 261: if (!inc_recurse || am_sender) {
! 262: int last;
! 263: if (first_flist)
! 264: last = first_flist->prev->ndx_start + first_flist->prev->used - 1;
! 265: else
! 266: last = -1;
! 267: rprintf(FERROR,
! 268: "Invalid file index: %d (%d - %d) [%s]\n",
! 269: ndx, NDX_DONE, last, who_am_i());
! 270: exit_cleanup(RERR_PROTOCOL);
! 271: }
! 272: if (ndx == NDX_FLIST_EOF) {
! 273: flist_eof = 1;
! 274: send_msg(MSG_FLIST_EOF, "", 0, 0);
! 275: continue;
! 276: }
! 277: ndx = NDX_FLIST_OFFSET - ndx;
! 278: if (ndx < 0 || ndx >= dir_flist->used) {
! 279: ndx = NDX_FLIST_OFFSET - ndx;
! 280: rprintf(FERROR,
! 281: "Invalid dir index: %d (%d - %d) [%s]\n",
! 282: ndx, NDX_FLIST_OFFSET,
! 283: NDX_FLIST_OFFSET - dir_flist->used + 1,
! 284: who_am_i());
! 285: exit_cleanup(RERR_PROTOCOL);
! 286: }
! 287:
! 288: /* Send everything read from f_in to msg_fd_out. */
! 289: if (verbose > 3) {
! 290: rprintf(FINFO, "[%s] receiving flist for dir %d\n",
! 291: who_am_i(), ndx);
! 292: }
! 293: verbose = 0;
! 294: send_msg_int(MSG_FLIST, ndx);
! 295: start_flist_forward(f_in);
! 296: flist = recv_file_list(f_in);
! 297: flist->parent_ndx = ndx;
! 298: stop_flist_forward();
! 299: verbose = save_verbose;
! 300: }
! 301:
! 302: iflags = protocol_version >= 29 ? read_shortint(f_in)
! 303: : ITEM_TRANSFER | ITEM_MISSING_DATA;
! 304:
! 305: /* Support the protocol-29 keep-alive style. */
! 306: if (protocol_version < 30 && ndx == cur_flist->used && iflags == ITEM_IS_NEW) {
! 307: if (am_sender)
! 308: maybe_send_keepalive();
! 309: goto read_loop;
! 310: }
! 311:
! 312: cur_flist = flist_for_ndx(ndx, "read_ndx_and_attrs");
! 313:
! 314: if (iflags & ITEM_BASIS_TYPE_FOLLOWS)
! 315: fnamecmp_type = read_byte(f_in);
! 316: *type_ptr = fnamecmp_type;
! 317:
! 318: if (iflags & ITEM_XNAME_FOLLOWS) {
! 319: if ((len = read_vstring(f_in, buf, MAXPATHLEN)) < 0)
! 320: exit_cleanup(RERR_PROTOCOL);
! 321: } else {
! 322: *buf = '\0';
! 323: len = -1;
! 324: }
! 325: *len_ptr = len;
! 326:
! 327: if (iflags & ITEM_TRANSFER) {
! 328: int i = ndx - cur_flist->ndx_start;
! 329: if (i < 0 || !S_ISREG(cur_flist->files[i]->mode)) {
! 330: rprintf(FERROR,
! 331: "received request to transfer non-regular file: %d [%s]\n",
! 332: ndx, who_am_i());
! 333: exit_cleanup(RERR_PROTOCOL);
! 334: }
! 335: }
! 336:
! 337: *iflag_ptr = iflags;
! 338: return ndx;
! 339: }
! 340:
! 341: /*
! 342: free a sums struct
! 343: */
! 344: void free_sums(struct sum_struct *s)
! 345: {
! 346: if (s->sums) free(s->sums);
! 347: free(s);
! 348: }
! 349:
! 350: /* This is only called when we aren't preserving permissions. Figure out what
! 351: * the permissions should be and return them merged back into the mode. */
! 352: mode_t dest_mode(mode_t flist_mode, mode_t stat_mode, int dflt_perms,
! 353: int exists)
! 354: {
! 355: int new_mode;
! 356: /* If the file already exists, we'll return the local permissions,
! 357: * possibly tweaked by the --executability option. */
! 358: if (exists) {
! 359: new_mode = (flist_mode & ~CHMOD_BITS) | (stat_mode & CHMOD_BITS);
! 360: if (preserve_executability && S_ISREG(flist_mode)) {
! 361: /* If the source file is executable, grant execute
! 362: * rights to everyone who can read, but ONLY if the
! 363: * file isn't already executable. */
! 364: if (!(flist_mode & 0111))
! 365: new_mode &= ~0111;
! 366: else if (!(stat_mode & 0111))
! 367: new_mode |= (new_mode & 0444) >> 2;
! 368: }
! 369: } else {
! 370: /* Apply destination default permissions and turn
! 371: * off special permissions. */
! 372: new_mode = flist_mode & (~CHMOD_BITS | dflt_perms);
! 373: }
! 374: return new_mode;
! 375: }
! 376:
! 377: int set_file_attrs(const char *fname, struct file_struct *file, stat_x *sxp,
! 378: const char *fnamecmp, int flags)
! 379: {
! 380: int updated = 0;
! 381: stat_x sx2;
! 382: int change_uid, change_gid;
! 383: mode_t new_mode = file->mode;
! 384: int inherit;
! 385:
! 386: if (!sxp) {
! 387: if (dry_run)
! 388: return 1;
! 389: if (link_stat(fname, &sx2.st, 0) < 0) {
! 390: rsyserr(FERROR_XFER, errno, "stat %s failed",
! 391: full_fname(fname));
! 392: return 0;
! 393: }
! 394: #ifdef SUPPORT_ACLS
! 395: sx2.acc_acl = sx2.def_acl = NULL;
! 396: #endif
! 397: #ifdef SUPPORT_XATTRS
! 398: sx2.xattr = NULL;
! 399: #endif
! 400: sxp = &sx2;
! 401: inherit = !preserve_perms;
! 402: } else
! 403: inherit = !preserve_perms && file->flags & FLAG_DIR_CREATED;
! 404:
! 405: if (inherit && S_ISDIR(new_mode) && sxp->st.st_mode & S_ISGID) {
! 406: /* We just created this directory and its setgid
! 407: * bit is on, so make sure it stays on. */
! 408: new_mode |= S_ISGID;
! 409: }
! 410:
! 411: if (daemon_chmod_modes && !S_ISLNK(new_mode))
! 412: new_mode = tweak_mode(new_mode, daemon_chmod_modes);
! 413:
! 414: #ifdef SUPPORT_ACLS
! 415: if (preserve_acls && !S_ISLNK(file->mode) && !ACL_READY(*sxp))
! 416: get_acl(fname, sxp);
! 417: #endif
! 418:
! 419: #ifdef SUPPORT_XATTRS
! 420: if (am_root < 0)
! 421: set_stat_xattr(fname, file, new_mode);
! 422: if (preserve_xattrs && fnamecmp)
! 423: set_xattr(fname, file, fnamecmp, sxp);
! 424: #endif
! 425:
! 426: if (!preserve_times
! 427: || (!(preserve_times & PRESERVE_DIR_TIMES) && S_ISDIR(sxp->st.st_mode))
! 428: || (!(preserve_times & PRESERVE_LINK_TIMES) && S_ISLNK(sxp->st.st_mode)))
! 429: flags |= ATTRS_SKIP_MTIME;
! 430: if (!(flags & ATTRS_SKIP_MTIME)
! 431: && cmp_time(sxp->st.st_mtime, file->modtime) != 0) {
! 432: int ret = set_modtime(fname, file->modtime, sxp->st.st_mode);
! 433: if (ret < 0) {
! 434: rsyserr(FERROR_XFER, errno, "failed to set times on %s",
! 435: full_fname(fname));
! 436: goto cleanup;
! 437: }
! 438: if (ret == 0) /* ret == 1 if symlink could not be set */
! 439: updated = 1;
! 440: else
! 441: file->flags |= FLAG_TIME_FAILED;
! 442: }
! 443:
! 444: change_uid = am_root && uid_ndx && sxp->st.st_uid != (uid_t)F_OWNER(file);
! 445: change_gid = gid_ndx && !(file->flags & FLAG_SKIP_GROUP)
! 446: && sxp->st.st_gid != (gid_t)F_GROUP(file);
! 447: #ifndef CAN_CHOWN_SYMLINK
! 448: if (S_ISLNK(sxp->st.st_mode)) {
! 449: ;
! 450: } else
! 451: #endif
! 452: if (change_uid || change_gid) {
! 453: if (verbose > 2) {
! 454: if (change_uid) {
! 455: rprintf(FINFO,
! 456: "set uid of %s from %u to %u\n",
! 457: fname, (unsigned)sxp->st.st_uid, F_OWNER(file));
! 458: }
! 459: if (change_gid) {
! 460: rprintf(FINFO,
! 461: "set gid of %s from %u to %u\n",
! 462: fname, (unsigned)sxp->st.st_gid, F_GROUP(file));
! 463: }
! 464: }
! 465: if (am_root >= 0) {
! 466: uid_t uid = change_uid ? (uid_t)F_OWNER(file) : sxp->st.st_uid;
! 467: gid_t gid = change_gid ? (gid_t)F_GROUP(file) : sxp->st.st_gid;
! 468: if (do_lchown(fname, uid, gid) != 0) {
! 469: /* We shouldn't have attempted to change uid
! 470: * or gid unless have the privilege. */
! 471: rsyserr(FERROR_XFER, errno, "%s %s failed",
! 472: change_uid ? "chown" : "chgrp",
! 473: full_fname(fname));
! 474: goto cleanup;
! 475: }
! 476: if (uid == (uid_t)-1 && sxp->st.st_uid != (uid_t)-1)
! 477: rprintf(FERROR_XFER, "uid 4294967295 (-1) is impossible to set on %s\n", full_fname(fname));
! 478: if (gid == (gid_t)-1 && sxp->st.st_gid != (gid_t)-1)
! 479: rprintf(FERROR_XFER, "gid 4294967295 (-1) is impossible to set on %s\n", full_fname(fname));
! 480: /* A lchown had been done, so we need to re-stat if
! 481: * the destination had the setuid or setgid bits set
! 482: * (due to the side effect of the chown call). */
! 483: if (sxp->st.st_mode & (S_ISUID | S_ISGID)) {
! 484: link_stat(fname, &sxp->st,
! 485: keep_dirlinks && S_ISDIR(sxp->st.st_mode));
! 486: }
! 487: }
! 488: updated = 1;
! 489: }
! 490:
! 491: #ifdef SUPPORT_ACLS
! 492: /* It's OK to call set_acl() now, even for a dir, as the generator
! 493: * will enable owner-writability using chmod, if necessary.
! 494: *
! 495: * If set_acl() changes permission bits in the process of setting
! 496: * an access ACL, it changes sxp->st.st_mode so we know whether we
! 497: * need to chmod(). */
! 498: if (preserve_acls && !S_ISLNK(new_mode)) {
! 499: if (set_acl(fname, file, sxp, new_mode) > 0)
! 500: updated = 1;
! 501: }
! 502: #endif
! 503:
! 504: #ifdef HAVE_CHMOD
! 505: if (!BITS_EQUAL(sxp->st.st_mode, new_mode, CHMOD_BITS)) {
! 506: int ret = am_root < 0 ? 0 : do_chmod(fname, new_mode);
! 507: if (ret < 0) {
! 508: rsyserr(FERROR_XFER, errno,
! 509: "failed to set permissions on %s",
! 510: full_fname(fname));
! 511: goto cleanup;
! 512: }
! 513: if (ret == 0) /* ret == 1 if symlink could not be set */
! 514: updated = 1;
! 515: }
! 516: #endif
! 517:
! 518: if (verbose > 1 && flags & ATTRS_REPORT) {
! 519: if (updated)
! 520: rprintf(FCLIENT, "%s\n", fname);
! 521: else
! 522: rprintf(FCLIENT, "%s is uptodate\n", fname);
! 523: }
! 524: cleanup:
! 525: if (sxp == &sx2) {
! 526: #ifdef SUPPORT_ACLS
! 527: if (preserve_acls)
! 528: free_acl(&sx2);
! 529: #endif
! 530: #ifdef SUPPORT_XATTRS
! 531: if (preserve_xattrs)
! 532: free_xattr(&sx2);
! 533: #endif
! 534: }
! 535: return updated;
! 536: }
! 537:
! 538: RETSIGTYPE sig_int(UNUSED(int val))
! 539: {
! 540: /* KLUGE: if the user hits Ctrl-C while ssh is prompting
! 541: * for a password, then our cleanup's sending of a SIGUSR1
! 542: * signal to all our children may kill ssh before it has a
! 543: * chance to restore the tty settings (i.e. turn echo back
! 544: * on). By sleeping for a short time, ssh gets a bigger
! 545: * chance to do the right thing. If child processes are
! 546: * not ssh waiting for a password, then this tiny delay
! 547: * shouldn't hurt anything. */
! 548: msleep(400);
! 549: exit_cleanup(RERR_SIGNAL);
! 550: }
! 551:
! 552: /* Finish off a file transfer: renaming the file and setting the file's
! 553: * attributes (e.g. permissions, ownership, etc.). If the robust_rename()
! 554: * call is forced to copy the temp file and partialptr is both non-NULL and
! 555: * not an absolute path, we stage the file into the partial-dir and then
! 556: * rename it into place. This returns 1 on succcess or 0 on failure. */
! 557: int finish_transfer(const char *fname, const char *fnametmp,
! 558: const char *fnamecmp, const char *partialptr,
! 559: struct file_struct *file, int ok_to_set_time,
! 560: int overwriting_basis)
! 561: {
! 562: int ret;
! 563: const char *temp_copy_name = partialptr && *partialptr != '/' ? partialptr : NULL;
! 564:
! 565: if (inplace) {
! 566: if (verbose > 2)
! 567: rprintf(FINFO, "finishing %s\n", fname);
! 568: fnametmp = fname;
! 569: goto do_set_file_attrs;
! 570: }
! 571:
! 572: if (make_backups > 0 && overwriting_basis) {
! 573: if (!make_backup(fname))
! 574: return 1;
! 575: if (fnamecmp == fname)
! 576: fnamecmp = get_backup_name(fname);
! 577: }
! 578:
! 579: /* Change permissions before putting the file into place. */
! 580: set_file_attrs(fnametmp, file, NULL, fnamecmp,
! 581: ok_to_set_time ? 0 : ATTRS_SKIP_MTIME);
! 582:
! 583: /* move tmp file over real file */
! 584: if (verbose > 2)
! 585: rprintf(FINFO, "renaming %s to %s\n", fnametmp, fname);
! 586: ret = robust_rename(fnametmp, fname, temp_copy_name,
! 587: file->mode & INITACCESSPERMS);
! 588: if (ret < 0) {
! 589: rsyserr(FERROR_XFER, errno, "%s %s -> \"%s\"",
! 590: ret == -2 ? "copy" : "rename",
! 591: full_fname(fnametmp), fname);
! 592: if (!partialptr || (ret == -2 && temp_copy_name)
! 593: || robust_rename(fnametmp, partialptr, NULL,
! 594: file->mode & INITACCESSPERMS) < 0)
! 595: do_unlink(fnametmp);
! 596: return 0;
! 597: }
! 598: if (ret == 0) {
! 599: /* The file was moved into place (not copied), so it's done. */
! 600: return 1;
! 601: }
! 602: /* The file was copied, so tweak the perms of the copied file. If it
! 603: * was copied to partialptr, move it into its final destination. */
! 604: fnametmp = temp_copy_name ? temp_copy_name : fname;
! 605:
! 606: do_set_file_attrs:
! 607: set_file_attrs(fnametmp, file, NULL, fnamecmp,
! 608: ok_to_set_time ? 0 : ATTRS_SKIP_MTIME);
! 609:
! 610: if (temp_copy_name) {
! 611: if (do_rename(fnametmp, fname) < 0) {
! 612: rsyserr(FERROR_XFER, errno, "rename %s -> \"%s\"",
! 613: full_fname(fnametmp), fname);
! 614: return 0;
! 615: }
! 616: handle_partial_dir(temp_copy_name, PDIR_DELETE);
! 617: }
! 618: return 1;
! 619: }
! 620:
! 621: struct file_list *flist_for_ndx(int ndx, const char *fatal_error_loc)
! 622: {
! 623: struct file_list *flist = cur_flist;
! 624:
! 625: if (!flist && !(flist = first_flist))
! 626: goto not_found;
! 627:
! 628: while (ndx < flist->ndx_start-1) {
! 629: if (flist == first_flist)
! 630: goto not_found;
! 631: flist = flist->prev;
! 632: }
! 633: while (ndx >= flist->ndx_start + flist->used) {
! 634: if (!(flist = flist->next))
! 635: goto not_found;
! 636: }
! 637: return flist;
! 638:
! 639: not_found:
! 640: if (fatal_error_loc) {
! 641: int first, last;
! 642: if (first_flist) {
! 643: first = first_flist->ndx_start - 1;
! 644: last = first_flist->prev->ndx_start + first_flist->prev->used - 1;
! 645: } else {
! 646: first = 0;
! 647: last = -1;
! 648: }
! 649: rprintf(FERROR,
! 650: "File-list index %d not in %d - %d (%s) [%s]\n",
! 651: ndx, first, last, fatal_error_loc, who_am_i());
! 652: exit_cleanup(RERR_PROTOCOL);
! 653: }
! 654: return NULL;
! 655: }
! 656:
! 657: const char *who_am_i(void)
! 658: {
! 659: if (am_starting_up)
! 660: return am_server ? "server" : "client";
! 661: return am_sender ? "sender"
! 662: : am_generator ? "generator"
! 663: : am_receiver ? "receiver"
! 664: : "Receiver"; /* pre-forked receiver */
! 665: }
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