*
* Copyright (C) 1996 Andrew Tridgell
* Copyright (C) 1996 Paul Mackerras
- * Copyright (C) 2003-2007 Wayne Davison
+ * Copyright (C) 2003-2008 Wayne Davison
*
* This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
+ * with this program; if not, visit the http://fsf.org website.
*/
#include "rsync.h"
+#include "ifuncs.h"
#if defined HAVE_LIBCHARSET_H && defined HAVE_LOCALE_CHARSET
#include <libcharset.h>
#elif defined HAVE_LANGINFO_H && defined HAVE_NL_LANGINFO
extern int preserve_perms;
extern int preserve_executability;
extern int preserve_times;
-extern int omit_dir_times;
extern int am_root;
extern int am_server;
extern int am_sender;
extern int am_starting_up;
extern int allow_8bit_chars;
extern int protocol_version;
-extern int preserve_uid;
-extern int preserve_gid;
+extern int uid_ndx;
+extern int gid_ndx;
extern int inc_recurse;
extern int inplace;
extern int flist_eof;
#ifdef ICONV_CONST
iconv_t ic_chck = (iconv_t)-1;
-#ifdef ICONV_OPTION
+# ifdef ICONV_OPTION
iconv_t ic_send = (iconv_t)-1, ic_recv = (iconv_t)-1;
-int ic_ndx;
-#endif
+# endif
static const char *default_charset(void)
{
-#if defined HAVE_LIBCHARSET_H && defined HAVE_LOCALE_CHARSET
+# if defined HAVE_LIBCHARSET_H && defined HAVE_LOCALE_CHARSET
return locale_charset();
-#elif defined HAVE_LANGINFO_H && defined HAVE_NL_LANGINFO
+# elif defined HAVE_LANGINFO_H && defined HAVE_NL_LANGINFO
return nl_langinfo(CODESET);
-#else
+# else
return ""; /* Works with (at the very least) gnu iconv... */
-#endif
+# endif
}
-void setup_iconv()
+void setup_iconv(void)
{
const char *defset = default_charset();
# ifdef ICONV_OPTION
const char *charset;
char *cp;
-#endif
+# endif
if (!am_server && !allow_8bit_chars) {
exit_cleanup(RERR_UNSUPPORTED);
}
- if (!am_sender || inc_recurse)
- ic_ndx = ++file_extra_cnt;
-
if (verbose > 1) {
rprintf(FINFO, "%s charset: %s\n",
am_server ? "server" : "client",
}
# endif
}
+
+/* This function converts the characters in the "in" xbuf into characters
+ * in the "out" xbuf. The "len" of the "in" xbuf is used starting from its
+ * "pos". The "size" of the "out" xbuf restricts how many characters can be
+ * stored, starting at its "pos+len" position. Note that the last byte of
+ * the buffer is never used, which reserves space for a terminating '\0'.
+ * We return a 0 on success or a -1 on error. An error also sets errno to
+ * E2BIG, EILSEQ, or EINVAL (see below); otherwise errno will be set to 0.
+ * The "in" xbuf is altered to update "pos" and "len". The "out" xbuf has
+ * data appended, and its "len" incremented. If ICB_EXPAND_OUT is set in
+ * "flags", the "out" xbuf will also be allocated if empty, and expanded if
+ * too small (so E2BIG will not be returned). If ICB_INCLUDE_BAD is set in
+ * "flags", any badly-encoded chars are included verbatim in the "out" xbuf,
+ * so EILSEQ will not be returned. Likewise for ICB_INCLUDE_INCOMPLETE with
+ * respect to an incomplete multi-byte char at the end, which ensures that
+ * EINVAL is not returned. Anytime "in.pos" is 0 we will reset the iconv()
+ * state prior to processing the characters. */
+int iconvbufs(iconv_t ic, xbuf *in, xbuf *out, int flags)
+{
+ ICONV_CONST char *ibuf;
+ size_t icnt, ocnt;
+ char *obuf;
+
+ if (!out->size && flags & ICB_EXPAND_OUT)
+ alloc_xbuf(out, 1024);
+
+ if (!in->pos)
+ iconv(ic, NULL, 0, NULL, 0);
+
+ ibuf = in->buf + in->pos;
+ icnt = in->len;
+
+ obuf = out->buf + (out->pos + out->len);
+ ocnt = out->size - (out->pos + out->len) - 1;
+
+ while (icnt) {
+ while (iconv(ic, &ibuf, &icnt, &obuf, &ocnt) == (size_t)-1) {
+ if (errno == EINTR)
+ continue;
+ if (errno == EINVAL) {
+ if (!(flags & ICB_INCLUDE_INCOMPLETE))
+ goto finish;
+ } else if (errno == EILSEQ) {
+ if (!(flags & ICB_INCLUDE_BAD))
+ goto finish;
+ } else {
+ size_t opos = obuf - out->buf;
+ if (!(flags & ICB_EXPAND_OUT)) {
+ errno = E2BIG;
+ goto finish;
+ }
+ realloc_xbuf(out, out->size + 1024);
+ obuf = out->buf + opos;
+ ocnt += 1024;
+ continue;
+ }
+ *obuf++ = *ibuf++;
+ ocnt--, icnt--;
+ }
+ }
+
+ errno = 0;
+
+ finish:
+ in->len = icnt;
+ in->pos = ibuf - in->buf;
+ out->len = obuf - out->buf - out->pos;
+
+ return errno ? -1 : 0;
+}
+#endif
+
+void send_protected_args(int fd, char *args[])
+{
+ int i;
+#ifdef ICONV_OPTION
+ int convert = ic_send != (iconv_t)-1;
+ xbuf outbuf, inbuf;
+
+ if (convert)
+ alloc_xbuf(&outbuf, 1024);
+#endif
+
+ for (i = 0; args[i]; i++) {} /* find first NULL */
+ args[i] = "rsync"; /* set a new arg0 */
+ if (verbose > 1)
+ print_child_argv("protected args:", args + i + 1);
+ do {
+#ifdef ICONV_OPTION
+ if (convert) {
+ INIT_XBUF_STRLEN(inbuf, args[i]);
+ iconvbufs(ic_send, &inbuf, &outbuf,
+ ICB_EXPAND_OUT | ICB_INCLUDE_BAD | ICB_INCLUDE_INCOMPLETE);
+ outbuf.buf[outbuf.len] = '\0';
+ write_buf(fd, outbuf.buf, outbuf.len + 1);
+ outbuf.len = 0;
+ } else
#endif
+ write_buf(fd, args[i], strlen(args[i]) + 1);
+ } while (args[++i]);
+ write_byte(fd, 0);
+
+#ifdef ICONV_OPTION
+ if (convert)
+ free(outbuf.buf);
+#endif
+}
int read_ndx_and_attrs(int f_in, int *iflag_ptr, uchar *type_ptr,
char *buf, int *len_ptr)
int len, iflags = 0;
struct file_list *flist;
uchar fnamecmp_type = FNAMECMP_FNAME;
- int ndx;
+ int ndx, save_verbose = verbose;
read_loop:
while (1) {
continue;
}
ndx = NDX_FLIST_OFFSET - ndx;
- if (ndx < 0 || ndx >= dir_flist->count) {
+ if (ndx < 0 || ndx >= dir_flist->used) {
ndx = NDX_FLIST_OFFSET - ndx;
rprintf(FERROR,
"[%s] Invalid dir index: %d (%d - %d)\n",
who_am_i(), ndx, NDX_FLIST_OFFSET,
- NDX_FLIST_OFFSET - dir_flist->count + 1);
+ NDX_FLIST_OFFSET - dir_flist->used + 1);
exit_cleanup(RERR_PROTOCOL);
}
/* Send everything read from f_in to msg_fd_out. */
- send_msg_int(MSG_FLIST, ndx);
- start_flist_forward(f_in);
if (verbose > 3) {
rprintf(FINFO, "[%s] receiving flist for dir %d\n",
who_am_i(), ndx);
}
+ verbose = 0;
+ send_msg_int(MSG_FLIST, ndx);
+ start_flist_forward(f_in);
flist = recv_file_list(f_in);
flist->parent_ndx = ndx;
stop_flist_forward();
+ verbose = save_verbose;
}
iflags = protocol_version >= 29 ? read_shortint(f_in)
/* Honor the old-style keep-alive indicator. */
if (protocol_version < 30
- && ndx == cur_flist->count && iflags == ITEM_IS_NEW) {
+ && ndx == cur_flist->used && iflags == ITEM_IS_NEW) {
if (am_sender)
maybe_send_keepalive();
goto read_loop;
}
if (!(flist = flist_for_ndx(ndx))) {
+ int start, used;
invalid_ndx:
+ start = first_flist ? first_flist->ndx_start : 0;
+ used = first_flist ? first_flist->used : 0;
rprintf(FERROR,
"Invalid file index: %d (%d - %d) with iflags %x [%s]\n",
- ndx, first_flist->ndx_start + first_flist->ndx_start,
- first_flist->prev->ndx_start + first_flist->ndx_start
- + first_flist->prev->count - 1, iflags, who_am_i());
+ ndx, start - 1, start + used -1, iflags, who_am_i());
exit_cleanup(RERR_PROTOCOL);
}
cur_flist = flist;
if (iflags & ITEM_TRANSFER) {
int i = ndx - cur_flist->ndx_start;
- if (!S_ISREG(cur_flist->files[i]->mode)) {
+ if (i < 0 || !S_ISREG(cur_flist->files[i]->mode)) {
rprintf(FERROR,
"received request to transfer non-regular file: %d [%s]\n",
ndx, who_am_i());
return new_mode;
}
-int set_file_attrs(const char *fname, struct file_struct *file, statx *sxp,
+int set_file_attrs(const char *fname, struct file_struct *file, stat_x *sxp,
const char *fnamecmp, int flags)
{
int updated = 0;
- statx sx2;
+ stat_x sx2;
int change_uid, change_gid;
mode_t new_mode = file->mode;
+ int inherit;
if (!sxp) {
if (dry_run)
return 1;
if (link_stat(fname, &sx2.st, 0) < 0) {
- rsyserr(FERROR, errno, "stat %s failed",
+ rsyserr(FERROR_XFER, errno, "stat %s failed",
full_fname(fname));
return 0;
}
#ifdef SUPPORT_XATTRS
sx2.xattr = NULL;
#endif
- if (!preserve_perms && S_ISDIR(new_mode)
- && sx2.st.st_mode & S_ISGID) {
- /* We just created this directory and its setgid
- * bit is on, so make sure it stays on. */
- new_mode |= S_ISGID;
- }
sxp = &sx2;
+ inherit = !preserve_perms;
+ } else
+ inherit = !preserve_perms && file->flags & FLAG_DIR_CREATED;
+
+ if (inherit && S_ISDIR(new_mode) && sxp->st.st_mode & S_ISGID) {
+ /* We just created this directory and its setgid
+ * bit is on, so make sure it stays on. */
+ new_mode |= S_ISGID;
}
+ if (daemon_chmod_modes && !S_ISLNK(new_mode))
+ new_mode = tweak_mode(new_mode, daemon_chmod_modes);
+
#ifdef SUPPORT_ACLS
if (preserve_acls && !S_ISLNK(file->mode) && !ACL_READY(*sxp))
get_acl(fname, sxp);
#endif
#ifdef SUPPORT_XATTRS
+ if (am_root < 0)
+ set_stat_xattr(fname, file, new_mode);
if (preserve_xattrs && fnamecmp)
set_xattr(fname, file, fnamecmp, sxp);
- if (am_root < 0)
- set_stat_xattr(fname, file);
#endif
- if (!preserve_times || (S_ISDIR(sxp->st.st_mode) && omit_dir_times))
+ if (!preserve_times || (S_ISDIR(sxp->st.st_mode) && preserve_times == 1))
flags |= ATTRS_SKIP_MTIME;
if (!(flags & ATTRS_SKIP_MTIME)
&& cmp_time(sxp->st.st_mtime, file->modtime) != 0) {
int ret = set_modtime(fname, file->modtime, sxp->st.st_mode);
if (ret < 0) {
- rsyserr(FERROR, errno, "failed to set times on %s",
+ rsyserr(FERROR_XFER, errno, "failed to set times on %s",
full_fname(fname));
goto cleanup;
}
if (ret == 0) /* ret == 1 if symlink could not be set */
updated = 1;
+ else
+ file->flags |= FLAG_TIME_FAILED;
}
- change_uid = am_root && preserve_uid && sxp->st.st_uid != (uid_t)F_OWNER(file);
- change_gid = preserve_gid && !(file->flags & FLAG_SKIP_GROUP)
+ change_uid = am_root && uid_ndx && sxp->st.st_uid != (uid_t)F_OWNER(file);
+ change_gid = gid_ndx && !(file->flags & FLAG_SKIP_GROUP)
&& sxp->st.st_gid != (gid_t)F_GROUP(file);
#if !defined HAVE_LCHOWN && !defined CHOWN_MODIFIES_SYMLINK
- if (S_ISLNK(sxp->st.st_mode))
+ if (S_ISLNK(sxp->st.st_mode)) {
;
- else
+ } else
#endif
if (change_uid || change_gid) {
if (verbose > 2) {
fname, (unsigned)sxp->st.st_gid, F_GROUP(file));
}
}
- if (am_root < 0) {
- ;
- } else if (do_lchown(fname,
- change_uid ? (uid_t)F_OWNER(file) : sxp->st.st_uid,
- change_gid ? (gid_t)F_GROUP(file) : sxp->st.st_gid) != 0) {
- /* shouldn't have attempted to change uid or gid
- * unless have the privilege */
- rsyserr(FERROR, errno, "%s %s failed",
- change_uid ? "chown" : "chgrp",
- full_fname(fname));
- goto cleanup;
- } else
- /* a lchown had been done - we have to re-stat if the
- * destination had the setuid or setgid bits set due
- * to the side effect of the chown call */
- if (sxp->st.st_mode & (S_ISUID | S_ISGID)) {
- link_stat(fname, &sxp->st,
- keep_dirlinks && S_ISDIR(sxp->st.st_mode));
+ if (am_root >= 0) {
+ if (do_lchown(fname,
+ change_uid ? (uid_t)F_OWNER(file) : sxp->st.st_uid,
+ change_gid ? (gid_t)F_GROUP(file) : sxp->st.st_gid) != 0) {
+ /* We shouldn't have attempted to change uid
+ * or gid unless have the privilege. */
+ rsyserr(FERROR_XFER, errno, "%s %s failed",
+ change_uid ? "chown" : "chgrp",
+ full_fname(fname));
+ goto cleanup;
+ }
+ /* A lchown had been done, so we need to re-stat if
+ * the destination had the setuid or setgid bits set
+ * (due to the side effect of the chown call). */
+ if (sxp->st.st_mode & (S_ISUID | S_ISGID)) {
+ link_stat(fname, &sxp->st,
+ keep_dirlinks && S_ISDIR(sxp->st.st_mode));
+ }
}
updated = 1;
}
- if (daemon_chmod_modes && !S_ISLNK(new_mode))
- new_mode = tweak_mode(new_mode, daemon_chmod_modes);
-
#ifdef SUPPORT_ACLS
/* It's OK to call set_acl() now, even for a dir, as the generator
* will enable owner-writability using chmod, if necessary.
if (!BITS_EQUAL(sxp->st.st_mode, new_mode, CHMOD_BITS)) {
int ret = am_root < 0 ? 0 : do_chmod(fname, new_mode);
if (ret < 0) {
- rsyserr(FERROR, errno,
+ rsyserr(FERROR_XFER, errno,
"failed to set permissions on %s",
full_fname(fname));
goto cleanup;
}
/* Finish off a file transfer: renaming the file and setting the file's
- * attributes (e.g. permissions, ownership, etc.). If partialptr is not
- * NULL and the robust_rename() call is forced to copy the temp file, we
- * stage the file into the partial-dir and then rename it into place. */
-void finish_transfer(const char *fname, const char *fnametmp,
- const char *fnamecmp, const char *partialptr,
- struct file_struct *file, int ok_to_set_time,
- int overwriting_basis)
+ * attributes (e.g. permissions, ownership, etc.). If the robust_rename()
+ * call is forced to copy the temp file and partialptr is both non-NULL and
+ * not an absolute path, we stage the file into the partial-dir and then
+ * rename it into place. This returns 1 on succcess or 0 on failure. */
+int finish_transfer(const char *fname, const char *fnametmp,
+ const char *fnamecmp, const char *partialptr,
+ struct file_struct *file, int ok_to_set_time,
+ int overwriting_basis)
{
int ret;
+ const char *temp_copy_name = partialptr && *partialptr != '/' ? partialptr : NULL;
if (inplace) {
if (verbose > 2)
}
if (make_backups > 0 && overwriting_basis && !make_backup(fname))
- return;
+ return 1;
/* Change permissions before putting the file into place. */
set_file_attrs(fnametmp, file, NULL, fnamecmp,
/* move tmp file over real file */
if (verbose > 2)
rprintf(FINFO, "renaming %s to %s\n", fnametmp, fname);
- ret = robust_rename(fnametmp, fname, partialptr,
+ ret = robust_rename(fnametmp, fname, temp_copy_name,
file->mode & INITACCESSPERMS);
if (ret < 0) {
- rsyserr(FERROR, errno, "%s %s -> \"%s\"",
+ rsyserr(FERROR_XFER, errno, "%s %s -> \"%s\"",
ret == -2 ? "copy" : "rename",
full_fname(fnametmp), fname);
- do_unlink(fnametmp);
- return;
+ if (!partialptr || (ret == -2 && temp_copy_name)
+ || robust_rename(fnametmp, partialptr, NULL,
+ file->mode & INITACCESSPERMS) < 0)
+ do_unlink(fnametmp);
+ return 0;
}
if (ret == 0) {
/* The file was moved into place (not copied), so it's done. */
- return;
+ return 1;
}
/* The file was copied, so tweak the perms of the copied file. If it
* was copied to partialptr, move it into its final destination. */
- fnametmp = partialptr ? partialptr : fname;
+ fnametmp = temp_copy_name ? temp_copy_name : fname;
do_set_file_attrs:
set_file_attrs(fnametmp, file, NULL, fnamecmp,
ok_to_set_time ? 0 : ATTRS_SKIP_MTIME);
- if (partialptr) {
+ if (temp_copy_name) {
if (do_rename(fnametmp, fname) < 0) {
- rsyserr(FERROR, errno, "rename %s -> \"%s\"",
+ rsyserr(FERROR_XFER, errno, "rename %s -> \"%s\"",
full_fname(fnametmp), fname);
- } else
- handle_partial_dir(partialptr, PDIR_DELETE);
+ return 0;
+ }
+ handle_partial_dir(temp_copy_name, PDIR_DELETE);
}
+ return 1;
}
struct file_list *flist_for_ndx(int ndx)
if (!flist && !(flist = first_flist))
return NULL;
- while (ndx < flist->ndx_start) {
+ while (ndx < flist->ndx_start-1) {
if (flist == first_flist)
return NULL;
flist = flist->prev;
}
- while (ndx >= flist->ndx_start + flist->count) {
+ while (ndx >= flist->ndx_start + flist->used) {
if (!(flist = flist->next))
return NULL;
}