./configure
make
-based-on: 8b7f20b6d35ee7458665c33114919567f5793503
+based-on: 40afd365cc8ca968fd16e161d24df5b8a8a520cc
diff --git a/Makefile.in b/Makefile.in
--- a/Makefile.in
+++ b/Makefile.in
diff --git a/configure.ac b/configure.ac
--- a/configure.ac
+++ b/configure.ac
-@@ -567,6 +567,7 @@ AC_FUNC_UTIME_NULL
+@@ -569,6 +569,7 @@ AC_FUNC_UTIME_NULL
AC_FUNC_ALLOCA
AC_CHECK_FUNCS(waitpid wait4 getcwd strdup chown chmod lchmod mknod mkfifo \
fchmod fstat ftruncate strchr readlink link utime utimes lutimes strftime \
#ifdef SUPPORT_HARD_LINKS
static int64 dev;
#endif
-@@ -768,6 +787,10 @@ static struct file_struct *recv_file_entry(int f, struct file_list *flist, int x
+@@ -731,6 +750,10 @@ static struct file_struct *recv_file_entry(int f, struct file_list *flist, int x
+ file_length = F_LENGTH(first);
+ modtime = first->modtime;
+ mode = first->mode;
++#ifdef SUPPORT_FILEFLAGS
++ if (preserve_fileflags)
++ fileflags = F_FFLAGS(first);
++#endif
+ if (preserve_uid)
+ uid = F_OWNER(first);
+ if (preserve_gid)
+@@ -768,6 +791,10 @@ static struct file_struct *recv_file_entry(int f, struct file_list *flist, int x
if (chmod_modes && !S_ISLNK(mode))
mode = tweak_mode(mode, chmod_modes);
if (preserve_uid && !(xflags & XMIT_SAME_UID)) {
if (protocol_version < 30)
-@@ -909,6 +932,10 @@ static struct file_struct *recv_file_entry(int f, struct file_list *flist, int x
+@@ -909,6 +936,10 @@ static struct file_struct *recv_file_entry(int f, struct file_list *flist, int x
}
#endif
file->mode = mode;
+#ifdef SUPPORT_FILEFLAGS
-+ if (preserve_fileflags)
++ if (fileflags_ndx) /* check the ndx for force_change w/o preserve_fileflags */
+ F_FFLAGS(file) = fileflags;
+#endif
if (preserve_uid)
F_OWNER(file) = uid;
if (preserve_gid) {
-@@ -1283,6 +1310,10 @@ struct file_struct *make_file(const char *fname, struct file_list *flist,
+@@ -1283,6 +1314,10 @@ struct file_struct *make_file(const char *fname, struct file_list *flist,
}
#endif
file->mode = st.st_mode;
if (preserve_uid)
F_OWNER(file) = st.st_uid;
if (preserve_gid)
+@@ -1429,6 +1464,9 @@ static struct file_struct *send_file_name(int f, struct file_list *flist,
+ #ifdef SUPPORT_XATTRS
+ if (preserve_xattrs) {
+ sx.st.st_mode = file->mode;
++#ifdef SUPPORT_FILEFLAGS
++ sx.st.st_flags = preserve_fileflags ? F_FFLAGS(file) : 0;
++#endif
+ sx.xattr = NULL;
+ if (get_xattr(fname, &sx) < 0) {
+ io_error |= IOERR_GENERAL;
diff --git a/generator.c b/generator.c
--- a/generator.c
+++ b/generator.c
-@@ -42,8 +42,10 @@ extern int preserve_devices;
+@@ -35,6 +35,7 @@ extern int do_progress;
+ extern int relative_paths;
+ extern int implied_dirs;
+ extern int keep_dirlinks;
++extern int force_change;
+ extern int preserve_acls;
+ extern int preserve_xattrs;
+ extern int preserve_links;
+@@ -42,6 +43,7 @@ extern int preserve_devices;
extern int preserve_specials;
extern int preserve_hard_links;
extern int preserve_executability;
+extern int preserve_fileflags;
extern int preserve_perms;
extern int preserve_times;
-+extern int force_change;
extern int delete_mode;
- extern int delete_before;
- extern int delete_during;
-@@ -164,11 +166,18 @@ static enum delret delete_item(char *fbuf, uint16 mode, uint16 flags)
+@@ -164,11 +166,15 @@ static enum delret delete_item(char *fbuf, uint16 mode, uint16 flags)
}
if (flags & DEL_NO_UID_WRITE)
/* This only happens on the first call to delete_item() since
* delete_dir_contents() always calls us w/DEL_DIR_IS_EMPTY. */
+#ifdef SUPPORT_FORCE_CHANGE
-+ if (force_change) {
-+ STRUCT_STAT st;
-+ if (x_lstat(fbuf, &st, NULL) == 0)
-+ make_mutable(fbuf, st.st_mode, st.st_flags, force_change);
-+ }
++ if (force_change)
++ make_mutable(fbuf, NULL, NO_FFLAGS, force_change);
+#endif
ignore_perishable = 1;
/* If DEL_RECURSE is not set, this just reports emptiness. */
ret = delete_dir_contents(fbuf, flags);
-@@ -285,8 +294,12 @@ static enum delret delete_dir_contents(char *fname, uint16 flags)
+@@ -285,8 +291,14 @@ static enum delret delete_dir_contents(char *fname, uint16 flags)
}
strlcpy(p, fp->basename, remainder);
+#ifdef SUPPORT_FORCE_CHANGE
-+ if (force_change)
-+ make_mutable(fname, fp->mode, F_FFLAGS(fp), force_change);
++ if (force_change) {
++ mode_t mode = fp->mode;
++ make_mutable(fname, &mode, F_FFLAGS(fp), force_change);
++ }
+#endif
if (!(fp->mode & S_IWUSR) && !am_root && fp->flags & FLAG_OWNED_BY_US)
- do_chmod(fname, fp->mode | S_IWUSR);
/* Save stack by recursing to ourself directly. */
if (S_ISDIR(fp->mode)) {
if (delete_dir_contents(fname, flags | DEL_RECURSE) != DR_SUCCESS)
-@@ -647,6 +660,10 @@ int unchanged_attrs(const char *fname, struct file_struct *file, stat_x *sxp)
+@@ -647,6 +659,10 @@ int unchanged_attrs(const char *fname, struct file_struct *file, stat_x *sxp)
return 0;
if (perms_differ(file, sxp))
return 0;
if (ownership_differs(file, sxp))
return 0;
#ifdef SUPPORT_ACLS
-@@ -698,6 +715,11 @@ void itemize(const char *fnamecmp, struct file_struct *file, int ndx, int statre
+@@ -698,6 +714,11 @@ void itemize(const char *fnamecmp, struct file_struct *file, int ndx, int statre
if (gid_ndx && !(file->flags & FLAG_SKIP_GROUP)
&& sxp->st.st_gid != (gid_t)F_GROUP(file))
iflags |= ITEM_REPORT_GROUP;
#ifdef SUPPORT_ACLS
if (preserve_acls && !S_ISLNK(file->mode)) {
if (!ACL_READY(*sxp))
-@@ -1491,6 +1513,10 @@ static void recv_generator(char *fname, struct file_struct *file, int ndx,
+@@ -1491,6 +1512,10 @@ static void recv_generator(char *fname, struct file_struct *file, int ndx,
file->mode = dest_mode(file->mode, sx.st.st_mode,
dflt_perms, statret == 0);
}
if (statret != 0 && basis_dir[0] != NULL) {
int j = try_dests_non(file, fname, ndx, fnamecmpbuf, &sx,
itemizing, code);
-@@ -1533,10 +1559,15 @@ static void recv_generator(char *fname, struct file_struct *file, int ndx,
- /* We need to ensure that the dirs in the transfer have writable
- * permissions during the time we are putting files within them.
- * This is then fixed after the transfer is done. */
+@@ -1535,10 +1560,17 @@ static void recv_generator(char *fname, struct file_struct *file, int ndx,
+ * readable and writable permissions during the time we are
+ * putting files within them. This is then restored to the
+ * former permissions after the transfer is done. */
+#ifdef SUPPORT_FORCE_CHANGE
-+ if (force_change && F_FFLAGS(file) & force_change
-+ && make_mutable(fname, file->mode, F_FFLAGS(file), force_change))
-+ need_retouch_dir_perms = 1;
++ if (force_change && F_FFLAGS(file) & force_change) {
++ mode_t mode = file->mode;
++ if (make_mutable(fname, &mode, F_FFLAGS(file), force_change))
++ need_retouch_dir_perms = 1;
++ }
+#endif
#ifdef HAVE_CHMOD
- if (!am_root && !(file->mode & S_IWUSR) && dir_tweaking) {
- mode_t mode = file->mode | S_IWUSR;
+ if (!am_root && (file->mode & S_IRWXU) != S_IRWXU && dir_tweaking) {
+ mode_t mode = file->mode | S_IRWXU;
- if (do_chmod(fname, mode) < 0) {
+ if (do_chmod(fname, mode, 0) < 0) {
rsyserr(FERROR_XFER, errno,
"failed to modify permissions on %s",
full_fname(fname));
-@@ -1571,6 +1602,10 @@ static void recv_generator(char *fname, struct file_struct *file, int ndx,
+@@ -1573,6 +1605,10 @@ static void recv_generator(char *fname, struct file_struct *file, int ndx,
file->mode = dest_mode(file->mode, sx.st.st_mode, dflt_perms,
exists);
}
#ifdef SUPPORT_HARD_LINKS
if (preserve_hard_links && F_HLINK_NOT_FIRST(file)
-@@ -2114,13 +2149,17 @@ static void touch_up_dirs(struct file_list *flist, int ndx)
+@@ -2116,13 +2152,17 @@ static void touch_up_dirs(struct file_list *flist, int ndx)
continue;
fname = f_name(file, NULL);
if (fix_dir_perms)
c[9] = !(iflags & ITEM_REPORT_ACL) ? '.' : 'a';
c[10] = !(iflags & ITEM_REPORT_XATTR) ? '.' : 'x';
c[11] = '\0';
+diff --git a/main.c b/main.c
+--- a/main.c
++++ b/main.c
+@@ -26,6 +26,9 @@
+ #if defined CONFIG_LOCALE && defined HAVE_LOCALE_H
+ #include <locale.h>
+ #endif
++#ifdef SUPPORT_FORCE_CHANGE
++#include <sys/sysctl.h>
++#endif
+
+ extern int verbose;
+ extern int dry_run;
+@@ -51,6 +54,7 @@ extern int protocol_version;
+ extern int file_total;
+ extern int recurse;
+ extern int xfer_dirs;
++extern int force_change;
+ extern int protect_args;
+ extern int relative_paths;
+ extern int sanitize_paths;
+@@ -753,6 +757,22 @@ static int do_recv(int f_in, int f_out, char *local_name)
+ * points to an identical file won't be replaced by the referent. */
+ copy_links = copy_dirlinks = copy_unsafe_links = 0;
+
++#ifdef SUPPORT_FORCE_CHANGE
++ if (force_change & SYS_IMMUTABLE) {
++ /* Determine whether we'll be able to unlock a system immutable item. */
++ int mib[2];
++ int securityLevel = 0;
++ size_t len = sizeof securityLevel;
++
++ mib[0] = CTL_KERN;
++ mib[1] = KERN_SECURELVL;
++ if (sysctl(mib, 2, &securityLevel, &len, NULL, 0) == 0 && securityLevel > 0) {
++ rprintf(FERROR, "System security level is too high to force mutability on system immutable files and directories.\n");
++ exit_cleanup(RERR_UNSUPPORTED);
++ }
++ }
++#endif
++
+ #ifdef SUPPORT_HARD_LINKS
+ if (preserve_hard_links && !inc_recurse)
+ match_hard_links(first_flist);
diff --git a/options.c b/options.c
--- a/options.c
+++ b/options.c
diff --git a/rsync.c b/rsync.c
--- a/rsync.c
+++ b/rsync.c
-@@ -32,6 +32,7 @@ extern int dry_run;
+@@ -29,9 +29,11 @@
+
+ extern int verbose;
+ extern int dry_run;
++extern int force_change;
extern int preserve_acls;
extern int preserve_xattrs;
extern int preserve_perms;
extern int preserve_executability;
extern int preserve_times;
extern int am_root;
-@@ -374,6 +375,39 @@ mode_t dest_mode(mode_t flist_mode, mode_t stat_mode, int dflt_perms,
+@@ -374,6 +376,74 @@ mode_t dest_mode(mode_t flist_mode, mode_t stat_mode, int dflt_perms,
return new_mode;
}
+{
+ if (do_chflags(fname, fileflags) != 0) {
+ rsyserr(FERROR_XFER, errno,
-+ "failed to set file flags on %s",
-+ full_fname(fname));
++ "failed to set fileflags (%x) on %s",
++ fileflags, full_fname(fname));
+ return 0;
+ }
+
+ return 1;
+}
+
-+/* Remove immutable flags from an object, so it can be altered/removed. */
-+int make_mutable(const char *fname, mode_t mode, uint32 fileflags, uint32 iflags)
++/* Remove immutable flags from an object, so it can be altered/removed.
++ * Returns the fileflags if flags were removed, otherwise 0. If the
++ * fileflags value is NO_FFLAGS, we will stat the fname to figure out
++ * what the flags are, and return the mode via *mode_ptr (if non-NULL). */
++uint32 make_mutable(const char *fname, mode_t *mode_ptr, uint32 fileflags, uint32 iflags)
+{
-+ if (S_ISLNK(mode) || !(fileflags & iflags))
++ if (fileflags == NO_FFLAGS) {
++ STRUCT_STAT st;
++ if (x_lstat(fname, &st, NULL) < 0)
++ return 0;
++ fileflags = st.st_flags;
++ if (mode_ptr)
++ *mode_ptr = st.st_mode;
++ else
++ mode_ptr = &st.st_mode;
++ }
++
++ if ((mode_ptr && S_ISLNK(*mode_ptr)) || !(fileflags & iflags))
+ return 0;
++
+ if (!set_fileflags(fname, fileflags & ~iflags))
-+ return -1;
-+ return 1;
++ return 0;
++
++ return fileflags;
+}
+
+/* Undo a prior make_mutable() call that returned a 1. */
+int undo_make_mutable(const char *fname, uint32 fileflags)
+{
-+ if (!set_fileflags(fname, fileflags))
++ if (!set_fileflags(fname, fileflags)) {
++ rsyserr(FINFO, errno, "failed to relock %s", full_fname(fname));
+ return -1;
++ }
+ return 1;
+}
++
++/* This returns the st_flags value if the parent directory was made mutable, otherwise 0.
++ * It stores the parent directory path into parent_dirbuf. */
++int make_parentdir_mutable(const char *fname, uint32 iflags, char *parent_dirbuf, int parent_dirbuf_size)
++{
++ char *slash = strrchr(fname, '/');
++
++ if (slash) {
++ int len = slash - fname;
++ if (len >= parent_dirbuf_size)
++ return 0;
++ strlcpy(parent_dirbuf, fname, len+1);
++ } else
++ strlcpy(parent_dirbuf, ".", parent_dirbuf_size);
++
++ return make_mutable(parent_dirbuf, NULL, NO_FFLAGS, iflags);
++}
+#endif
+
int set_file_attrs(const char *fname, struct file_struct *file, stat_x *sxp,
const char *fnamecmp, int flags)
{
-@@ -429,7 +463,7 @@ int set_file_attrs(const char *fname, struct file_struct *file, stat_x *sxp,
+@@ -382,6 +452,9 @@ int set_file_attrs(const char *fname, struct file_struct *file, stat_x *sxp,
+ int change_uid, change_gid;
+ mode_t new_mode = file->mode;
+ int inherit;
++#ifdef SUPPORT_FORCE_CHANGE
++ int became_mutable = 0;
++#endif
+
+ if (!sxp) {
+ if (dry_run)
+@@ -411,6 +484,11 @@ int set_file_attrs(const char *fname, struct file_struct *file, stat_x *sxp,
+ if (daemon_chmod_modes && !S_ISLNK(new_mode))
+ new_mode = tweak_mode(new_mode, daemon_chmod_modes);
+
++#ifdef SUPPORT_FORCE_CHANGE
++ if (force_change)
++ became_mutable = make_mutable(fname, &sxp->st.st_mode, sxp->st.st_flags, force_change);
++#endif
++
+ #ifdef SUPPORT_ACLS
+ if (preserve_acls && !S_ISLNK(file->mode) && !ACL_READY(*sxp))
+ get_acl(fname, sxp);
+@@ -429,7 +507,7 @@ int set_file_attrs(const char *fname, struct file_struct *file, stat_x *sxp,
flags |= ATTRS_SKIP_MTIME;
if (!(flags & ATTRS_SKIP_MTIME)
&& cmp_time(sxp->st.st_mtime, file->modtime) != 0) {
if (ret < 0) {
rsyserr(FERROR_XFER, errno, "failed to set times on %s",
full_fname(fname));
-@@ -465,7 +499,8 @@ int set_file_attrs(const char *fname, struct file_struct *file, stat_x *sxp,
+@@ -465,7 +543,7 @@ int set_file_attrs(const char *fname, struct file_struct *file, stat_x *sxp,
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) {
-+ change_gid ? (gid_t)F_GROUP(file) : sxp->st.st_gid,
-+ sxp->st.st_mode, ST_FLAGS(sxp->st)) != 0) {
+ uid_t uid = change_uid ? (uid_t)F_OWNER(file) : sxp->st.st_uid;
+ gid_t gid = change_gid ? (gid_t)F_GROUP(file) : sxp->st.st_gid;
+- if (do_lchown(fname, uid, gid) != 0) {
++ if (do_lchown(fname, uid, gid, sxp->st.st_mode, ST_FLAGS(sxp->st)) != 0) {
/* We shouldn't have attempted to change uid
* or gid unless have the privilege. */
rsyserr(FERROR_XFER, errno, "%s %s failed",
-@@ -499,7 +534,7 @@ int set_file_attrs(const char *fname, struct file_struct *file, stat_x *sxp,
+@@ -503,7 +581,7 @@ int set_file_attrs(const char *fname, struct file_struct *file, stat_x *sxp,
#ifdef HAVE_CHMOD
if (!BITS_EQUAL(sxp->st.st_mode, new_mode, CHMOD_BITS)) {
if (ret < 0) {
rsyserr(FERROR_XFER, errno,
"failed to set permissions on %s",
-@@ -511,6 +546,19 @@ int set_file_attrs(const char *fname, struct file_struct *file, stat_x *sxp,
+@@ -515,6 +593,24 @@ int set_file_attrs(const char *fname, struct file_struct *file, stat_x *sxp,
}
#endif
++#ifdef SUPPORT_FORCE_CHANGE
++ if (became_mutable)
++ undo_make_mutable(fname, sxp->st.st_flags);
++#endif
++
+#ifdef SUPPORT_FILEFLAGS
+ if (preserve_fileflags && !S_ISLNK(sxp->st.st_mode)
+ && sxp->st.st_flags != F_FFLAGS(file)) {
if (verbose > 1 && flags & ATTRS_REPORT) {
if (updated)
rprintf(FCLIENT, "%s\n", fname);
-@@ -574,7 +622,8 @@ int finish_transfer(const char *fname, const char *fnametmp,
+@@ -578,7 +674,8 @@ int finish_transfer(const char *fname, const char *fnametmp,
/* Change permissions before putting the file into place. */
set_file_attrs(fnametmp, file, NULL, fnamecmp,
/* move tmp file over real file */
if (verbose > 2)
-@@ -593,6 +642,10 @@ int finish_transfer(const char *fname, const char *fnametmp,
+@@ -597,6 +694,10 @@ int finish_transfer(const char *fname, const char *fnametmp,
}
if (ret == 0) {
/* The file was moved into place (not copied), so it's done. */
diff --git a/rsync.yo b/rsync.yo
--- a/rsync.yo
+++ b/rsync.yo
-@@ -342,6 +342,7 @@ to the detailed description below for a complete description. verb(
+@@ -355,6 +355,7 @@ to the detailed description below for a complete description. verb(
-K, --keep-dirlinks treat symlinked dir on receiver as dir
-H, --hard-links preserve hard links
-p, --perms preserve permissions
-E, --executability preserve executability
--chmod=CHMOD affect file and/or directory permissions
-A, --acls preserve ACLs (implies -p)
-@@ -373,7 +374,10 @@ to the detailed description below for a complete description. verb(
- --delete-after receiver deletes after transfer, not before
+@@ -386,7 +387,10 @@ to the detailed description below for a complete description. verb(
+ --delete-after receiver deletes after transfer, not during
--delete-excluded also delete excluded files from dest dirs
--ignore-errors delete even if there are I/O errors
- --force force deletion of dirs even if not empty
--max-delete=NUM don't delete more than NUM files
--max-size=SIZE don't transfer any file larger than SIZE
--min-size=SIZE don't transfer any file smaller than SIZE
-@@ -547,7 +551,8 @@ specified, in which case bf(-r) is not implied.
+@@ -566,7 +570,8 @@ specified, in which case bf(-r) is not implied.
Note that bf(-a) bf(does not preserve hardlinks), because
finding multiply-linked files is expensive. You must separately
dit(--no-OPTION) You may turn off one or more implied options by prefixing
the option name with "no-". Not all options may be prefixed with a "no-":
-@@ -827,7 +832,7 @@ they would be using bf(--copy-links).
+@@ -846,7 +851,7 @@ they would be using bf(--copy-links).
Without this option, if the sending side has replaced a directory with a
symlink to a directory, the receiving side will delete anything that is in
the way of the new symlink, including a directory hierarchy (as long as
See also bf(--keep-dirlinks) for an analogous option for the receiving
side.
-@@ -989,6 +994,29 @@ Note that this option does not copy rsyncs special xattr values (e.g. those
+@@ -1009,6 +1014,29 @@ Note that this option does not copy rsyncs special xattr values (e.g. those
used by bf(--fake-super)) unless you repeat the option (e.g. -XX). This
"copy all xattrs" mode cannot be used with bf(--fake-super).
+bf(--force-change) and bf(--force-schange).
+
dit(bf(--chmod)) This option tells rsync to apply one or more
- comma-separated "chmod" strings to the permission of the files in the
+ comma-separated "chmod" modes to the permission of the files in the
transfer. The resulting value is treated as though it were the permissions
-@@ -1263,12 +1291,13 @@ See bf(--delete) (which is implied) for more details on file-deletion.
+@@ -1289,12 +1317,13 @@ See bf(--delete) (which is implied) for more details on file-deletion.
dit(bf(--ignore-errors)) Tells bf(--delete) to go ahead and delete files
even when there are I/O errors.
bf(--recursive) option was also enabled.
dit(bf(--max-delete=NUM)) This tells rsync not to delete more than NUM
-@@ -1756,7 +1785,7 @@ with older versions of rsync, but that also turns on the output of other
+@@ -1782,7 +1811,7 @@ with older versions of rsync, but that also turns on the output of other
verbose messages).
The "%i" escape has a cryptic output that is 11 letters long. The general
type of update being done, bf(X) is replaced by the file-type, and the
other letters represent attributes that may be output if they are being
modified.
-@@ -1812,7 +1841,7 @@ quote(itemization(
+@@ -1838,7 +1867,7 @@ quote(itemization(
sender's value (requires bf(--owner) and super-user privileges).
it() A bf(g) means the group is different and is being updated to the
sender's value (requires bf(--group) and the authority to set the group).
extern int preserve_perms;
extern int preserve_executability;
-@@ -50,7 +51,23 @@ int do_unlink(const char *fname)
+@@ -50,14 +51,56 @@ int do_unlink(const char *fname)
{
if (dry_run) return 0;
RETURN_ERROR_IF_RO_OR_LO;
- return unlink(fname);
+ if (unlink(fname) == 0)
+ return 0;
-+#ifdef SUPPORT_FORCE_CHANGE
-+ if (force_change && errno == EPERM) {
-+ STRUCT_STAT st;
+
-+ if (x_lstat(fname, &st, NULL) == 0
-+ && make_mutable(fname, st.st_mode, st.st_flags, force_change) > 0) {
-+ if (unlink(fname) == 0)
++#ifdef SUPPORT_FORCE_CHANGE
++ if (force_change && (errno == EPERM || errno == EACCES)) {
++ char parent[MAXPATHLEN];
++ int parent_flags;
++ int saved_errno = errno;
++ int file_flags = make_mutable(fname, NULL, NO_FFLAGS, force_change);
++ if (file_flags && unlink(fname) == 0)
++ return 0;
++ parent_flags = make_parentdir_mutable(fname, force_change, parent, sizeof parent);
++ if (parent_flags) {
++ int ret = unlink(fname);
++ undo_make_mutable(parent, parent_flags);
++ if (ret == 0)
+ return 0;
-+ undo_make_mutable(fname, st.st_flags);
+ }
-+ /* TODO: handle immutable directories */
-+ errno = EPERM;
++ if (file_flags)
++ undo_make_mutable(fname, file_flags);
++ errno = saved_errno;
+ }
+#endif
++
+ return -1;
}
int do_symlink(const char *fname1, const char *fname2)
-@@ -69,14 +86,37 @@ int do_link(const char *fname1, const char *fname2)
+ {
+ if (dry_run) return 0;
+ RETURN_ERROR_IF_RO_OR_LO;
+- return symlink(fname1, fname2);
++ if (symlink(fname1, fname2) == 0)
++ return 0;
++
++#ifdef SUPPORT_FORCE_CHANGE
++ if (force_change && (errno == EPERM || errno == EACCES)) {
++ char parent[MAXPATHLEN];
++ int saved_errno = errno;
++ int parent_flags = make_parentdir_mutable(fname2, force_change, parent, sizeof parent);
++ if (parent_flags) {
++ int ret = symlink(fname1, fname2);
++ undo_make_mutable(parent, parent_flags);
++ if (ret == 0)
++ return 0;
++ }
++ errno = saved_errno;
++ }
++#endif
++
++ return -1;
+ }
+
+ #ifdef HAVE_LINK
+@@ -65,18 +108,55 @@ int do_link(const char *fname1, const char *fname2)
+ {
+ if (dry_run) return 0;
+ RETURN_ERROR_IF_RO_OR_LO;
+- return link(fname1, fname2);
++ if (link(fname1, fname2) == 0)
++ return 0;
++
++#ifdef SUPPORT_FORCE_CHANGE
++ if (force_change && (errno == EPERM || errno == EACCES)) {
++ char parent[MAXPATHLEN];
++ int saved_errno = errno;
++ int parent_flags = make_parentdir_mutable(fname2, force_change, parent, sizeof parent);
++ if (parent_flags) {
++ int ret = link(fname1, fname2);
++ undo_make_mutable(parent, parent_flags);
++ if (ret == 0)
++ return 0;
++ }
++ errno = saved_errno;
++ }
++#endif
++
++ return -1;
}
#endif
- return lchown(path, owner, group);
+ if (lchown(path, owner, group) == 0)
+ return 0;
++
+#ifdef SUPPORT_FORCE_CHANGE
-+ if (force_change && errno == EPERM) {
-+ if (fileflags == NO_FFLAGS) {
-+ STRUCT_STAT st;
-+ if (x_lstat(path, &st, NULL) == 0) {
-+ mode = st.st_mode;
-+ fileflags = st.st_flags;
-+ }
-+ }
-+ if (fileflags != NO_FFLAGS
-+ && make_mutable(path, mode, fileflags, force_change) > 0) {
++ if (force_change && (errno == EPERM || errno == EACCES)) {
++ int saved_errno = errno;
++ fileflags = make_mutable(path, &mode, fileflags, force_change);
++ if (fileflags) {
+ int ret = lchown(path, owner, group);
+ undo_make_mutable(path, fileflags);
+ if (ret == 0)
+ return 0;
+ }
-+ errno = EPERM;
++ errno = saved_errno;
+ }
+#else
+ mode = fileflags = 0; /* avoid compiler warning */
+#endif
++
+ return -1;
}
int do_mknod(const char *pathname, mode_t mode, dev_t dev)
-@@ -116,7 +156,7 @@ int do_mknod(const char *pathname, mode_t mode, dev_t dev)
+@@ -116,7 +196,7 @@ int do_mknod(const char *pathname, mode_t mode, dev_t dev)
return -1;
close(sock);
#ifdef HAVE_CHMOD
#else
return 0;
#endif
-@@ -133,7 +173,22 @@ int do_rmdir(const char *pathname)
+@@ -133,21 +213,63 @@ int do_rmdir(const char *pathname)
{
if (dry_run) return 0;
RETURN_ERROR_IF_RO_OR_LO;
- return rmdir(pathname);
+ if (rmdir(pathname) == 0)
+ return 0;
-+#ifdef SUPPORT_FORCE_CHANGE
-+ if (force_change && errno == EPERM) {
-+ STRUCT_STAT st;
+
-+ if (x_lstat(pathname, &st, NULL) == 0
-+ && make_mutable(pathname, st.st_mode, st.st_flags, force_change) > 0) {
-+ if (rmdir(pathname) == 0)
++#ifdef SUPPORT_FORCE_CHANGE
++ if (force_change && (errno == EPERM || errno == EACCES)) {
++ char parent[MAXPATHLEN];
++ int parent_flags;
++ int saved_errno = errno;
++ int file_flags = make_mutable(pathname, NULL, NO_FFLAGS, force_change);
++ if (file_flags && rmdir(pathname) == 0)
++ return 0;
++ parent_flags = make_parentdir_mutable(pathname, force_change, parent, sizeof parent);
++ if (parent_flags) {
++ int ret = rmdir(pathname);
++ undo_make_mutable(parent, parent_flags);
++ if (ret == 0)
+ return 0;
-+ undo_make_mutable(pathname, st.st_flags);
+ }
-+ errno = EPERM;
++ if (file_flags)
++ undo_make_mutable(pathname, file_flags);
++ errno = saved_errno;
+ }
+#endif
++
+ return -1;
}
int do_open(const char *pathname, int flags, mode_t mode)
-@@ -147,7 +202,7 @@ int do_open(const char *pathname, int flags, mode_t mode)
+ {
++ int fd;
+ if (flags != O_RDONLY) {
+ RETURN_ERROR_IF(dry_run, 0);
+ RETURN_ERROR_IF_RO_OR_LO;
+ }
++ if ((fd = open(pathname, flags | O_BINARY, mode)) >= 0)
++ return fd;
++
++#ifdef SUPPORT_FORCE_CHANGE
++ if (force_change && (errno == EPERM || errno == EACCES)) {
++ char parent[MAXPATHLEN];
++ int saved_errno = errno;
++ int parent_flags = make_parentdir_mutable(pathname, force_change, parent, sizeof parent);
++ if (parent_flags) {
++ fd = open(pathname, flags | O_BINARY, mode);
++ undo_make_mutable(parent, parent_flags);
++ if (fd >= 0)
++ return fd;
++ }
++ errno = saved_errno;
++ }
++#endif
+
+- return open(pathname, flags | O_BINARY, mode);
++ return -1;
}
#ifdef HAVE_CHMOD
{
int code;
if (dry_run) return 0;
-@@ -170,17 +225,78 @@ int do_chmod(const char *path, mode_t mode)
+@@ -170,17 +292,93 @@ int do_chmod(const char *path, mode_t mode)
} else
code = chmod(path, mode & CHMOD_BITS); /* DISCOURAGED FUNCTION */
#endif /* !HAVE_LCHMOD */
+#ifdef SUPPORT_FORCE_CHANGE
-+ if (code < 0 && force_change && errno == EPERM && !S_ISLNK(mode)) {
-+ if (fileflags == NO_FFLAGS) {
-+ STRUCT_STAT st;
-+ if (x_lstat(path, &st, NULL) == 0)
-+ fileflags = st.st_flags;
-+ }
-+ if (fileflags != NO_FFLAGS
-+ && make_mutable(path, mode, fileflags, force_change) > 0) {
++ if (code < 0 && force_change && (errno == EPERM || errno == EACCES) && !S_ISLNK(mode)) {
++ int saved_errno = errno;
++ fileflags = make_mutable(path, &mode, fileflags, force_change);
++ if (fileflags) {
+#ifdef HAVE_LCHMOD
+ code = lchmod(path, mode & CHMOD_BITS);
+#else
+ if (code == 0)
+ return 0;
+ }
-+ errno = EPERM;
++ errno = saved_errno;
+ }
+#else
+ fileflags = 0; /* avoid compiler warning */
- return rename(fname1, fname2);
+ if (rename(fname1, fname2) == 0)
+ return 0;
++
+#ifdef SUPPORT_FORCE_CHANGE
-+ if (force_change && errno == EPERM) {
-+ STRUCT_STAT st1, st2;
-+ int became_mutable;
++ if (force_change && (errno == EPERM || errno == EACCES)) {
++ int saved_errno = errno;
++ int ret = -1, file2_flags = 0;
++ int file1_flags = make_mutable(fname1, NULL, NO_FFLAGS, force_change);
++ if (file1_flags && rename(fname1, fname2) == 0)
++ ret = 0;
++ else {
++ file2_flags = make_mutable(fname2, NULL, NO_FFLAGS, force_change);
++ if (file2_flags && rename(fname1, fname2) == 0)
++ ret = 0;
++ else {
++ char parent1[MAXPATHLEN];
++ int parent1_flags = make_parentdir_mutable(fname1, force_change,
++ parent1, sizeof parent1);
++ if (parent1_flags && rename(fname1, fname2) == 0)
++ ret = 0;
++ else {
++ char parent2[MAXPATHLEN];
++ int parent2_flags = make_parentdir_mutable(fname2, force_change,
++ parent2, sizeof parent2);
++ if (parent2_flags) {
++ if (rename(fname1, fname2) == 0)
++ ret = 0;
++ undo_make_mutable(parent2, parent2_flags);
++ }
++ }
++ if (parent1_flags)
++ undo_make_mutable(parent1, parent1_flags);
++ }
++ }
++
++ if (ret == 0)
++ file2_flags = file1_flags; /* file1 is now file2 */
++ else if (file1_flags)
++ undo_make_mutable(fname1, file1_flags);
++ if (file2_flags)
++ undo_make_mutable(fname2, file2_flags);
++ if (ret == 0)
++ return 0;
++
++ errno = saved_errno;
++ }
++#endif
++
++ return -1;
+ }
+
+ #ifdef HAVE_FTRUNCATE
+@@ -222,7 +420,25 @@ int do_mkdir(char *fname, mode_t mode)
+ if (dry_run) return 0;
+ RETURN_ERROR_IF_RO_OR_LO;
+ trim_trailing_slashes(fname);
+- return mkdir(fname, mode);
++ if (mkdir(fname, mode) == 0)
++ return 0;
+
-+ if (x_lstat(fname1, &st1, NULL) != 0)
-+ goto failed;
-+ became_mutable = make_mutable(fname1, st1.st_mode, st1.st_flags, force_change) > 0;
-+ if (became_mutable && rename(fname1, fname2) == 0)
-+ goto success;
-+ if (x_lstat(fname2, &st2, NULL) == 0
-+ && make_mutable(fname2, st2.st_mode, st2.st_flags, force_change) > 0) {
-+ if (rename(fname1, fname2) == 0) {
-+ success:
-+ if (became_mutable) /* Yes, use fname2 and st1! */
-+ undo_make_mutable(fname2, st1.st_flags);
++#ifdef SUPPORT_FORCE_CHANGE
++ if (force_change && (errno == EPERM || errno == EACCES)) {
++ char parent[MAXPATHLEN];
++ int saved_errno = errno;
++ int parent_flags = make_parentdir_mutable(fname, force_change, parent, sizeof parent);
++ if (parent_flags) {
++ int ret = mkdir(fname, mode);
++ undo_make_mutable(parent, parent_flags);
++ if (ret == 0)
+ return 0;
++ }
++ errno = saved_errno;
++ }
++#endif
++
++ return -1;
+ }
+
+ /* like mkstemp but forces permissions */
+@@ -235,7 +451,19 @@ int do_mkstemp(char *template, mode_t perms)
+ #if defined HAVE_SECURE_MKSTEMP && defined HAVE_FCHMOD && (!defined HAVE_OPEN64 || defined HAVE_MKSTEMP64)
+ {
+ int fd = mkstemp(template);
+- if (fd == -1)
++#ifdef SUPPORT_FORCE_CHANGE
++ if (fd < 0 && force_change) {
++ char parent[MAXPATHLEN];
++ int saved_errno = errno;
++ int parent_flags = make_parentdir_mutable(template, force_change, parent, sizeof parent);
++ if (parent_flags) {
++ fd = mkstemp(template);
++ undo_make_mutable(parent, parent_flags);
+ }
-+ undo_make_mutable(fname2, st2.st_flags);
++ errno = saved_errno;
+ }
-+ /* TODO: handle immutable directories */
-+ if (became_mutable)
-+ undo_make_mutable(fname1, st1.st_flags);
-+ failed:
-+ errno = EPERM;
++#endif
++ if (fd < 0)
+ return -1;
+ if (fchmod(fd, perms) != 0 && preserve_perms) {
+ int errno_save = errno;
+@@ -302,7 +530,7 @@ OFF_T do_lseek(int fd, OFF_T offset, int whence)
+ }
+
+ #ifdef HAVE_UTIMENSAT
+-int do_utimensat(const char *fname, time_t modtime, uint32 mod_nsec)
++int do_utimensat(const char *fname, time_t modtime, uint32 mod_nsec, mode_t mode, uint32 fileflags)
+ {
+ struct timespec t[2];
+
+@@ -313,12 +541,26 @@ int do_utimensat(const char *fname, time_t modtime, uint32 mod_nsec)
+ t[0].tv_nsec = UTIME_NOW;
+ t[1].tv_sec = modtime;
+ t[1].tv_nsec = mod_nsec;
+- return utimensat(AT_FDCWD, fname, t, AT_SYMLINK_NOFOLLOW);
++ if (utimensat(AT_FDCWD, fname, t, AT_SYMLINK_NOFOLLOW) == 0)
++ return 0;
++
++#ifdef SUPPORT_FORCE_CHANGE
++ fileflags = make_mutable(fname, &mode, fileflags, force_change);
++ if (fileflags) {
++ if (utimensat(AT_FDCWD, fname, t, AT_SYMLINK_NOFOLLOW) == 0)
++ return 0;
++ undo_make_mutable(fname, fileflags);
+ }
++#else
++ mode = fileflags; /* avoid compiler warning */
+#endif
++
+ return -1;
}
+ #endif
- #ifdef HAVE_FTRUNCATE
+ #ifdef HAVE_LUTIMES
+-int do_lutimes(const char *fname, time_t modtime, uint32 mod_nsec)
++int do_lutimes(const char *fname, time_t modtime, uint32 mod_nsec, mode_t mode, uint32 fileflags)
+ {
+ struct timeval t[2];
+
+@@ -329,12 +571,26 @@ int do_lutimes(const char *fname, time_t modtime, uint32 mod_nsec)
+ t[0].tv_usec = 0;
+ t[1].tv_sec = modtime;
+ t[1].tv_usec = mod_nsec / 1000;
+- return lutimes(fname, t);
++ if (lutimes(fname, t) == 0)
++ return 0;
++
++#ifdef SUPPORT_FORCE_CHANGE
++ fileflags = make_mutable(fname, &mode, fileflags, force_change);
++ if (fileflags) {
++ if (lutimes(fname, t) == 0)
++ return 0;
++ undo_make_mutable(fname, fileflags);
++ }
++#else
++ mode = fileflags; /* avoid compiler warning */
++#endif
++
++ return -1;
+ }
+ #endif
+
+ #ifdef HAVE_UTIMES
+-int do_utimes(const char *fname, time_t modtime, uint32 mod_nsec)
++int do_utimes(const char *fname, time_t modtime, uint32 mod_nsec, mode_t mode, uint32 fileflags)
+ {
+ struct timeval t[2];
+
+@@ -345,14 +601,28 @@ int do_utimes(const char *fname, time_t modtime, uint32 mod_nsec)
+ t[0].tv_usec = 0;
+ t[1].tv_sec = modtime;
+ t[1].tv_usec = mod_nsec / 1000;
+- return utimes(fname, t);
++ if (utimes(fname, t) == 0)
++ return 0;
++
++#ifdef SUPPORT_FORCE_CHANGE
++ fileflags = make_mutable(fname, &mode, fileflags, force_change);
++ if (fileflags) {
++ if (utimes(fname, t) == 0)
++ return 0;
++ undo_make_mutable(fname, fileflags);
++ }
++#else
++ mode = fileflags; /* avoid compiler warning */
++#endif
++
++ return -1;
+ }
+
+ #elif defined HAVE_UTIME
+-int do_utime(const char *fname, time_t modtime, UNUSED(uint32 mod_nsec))
++int do_utime(const char *fname, time_t modtime, UNUSED(uint32 mod_nsec), mode_t mode, uint32 fileflags)
+ {
+ #ifdef HAVE_STRUCT_UTIMBUF
+- struct utimbuf tbuf;
++ struct utimbuf tbuf, *t = &tbuf;
+ #else
+ time_t t[2];
+ #endif
+@@ -360,15 +630,28 @@ int do_utime(const char *fname, time_t modtime, UNUSED(uint32 mod_nsec))
+ if (dry_run) return 0;
+ RETURN_ERROR_IF_RO_OR_LO;
+
+-# ifdef HAVE_STRUCT_UTIMBUF
++#ifdef HAVE_STRUCT_UTIMBUF
+ tbuf.actime = time(NULL);
+ tbuf.modtime = modtime;
+- return utime(fname, &tbuf);
+-# else
++#else
+ t[0] = time(NULL);
+ t[1] = modtime;
+- return utime(fname, t);
+-# endif
++#endif
++ if (utime(fname, t) == 0)
++ return 0;
++
++#ifdef SUPPORT_FORCE_CHANGE
++ fileflags = make_mutable(fname, &mode, fileflags, force_change);
++ if (fileflags) {
++ if (utime(fname, t) == 0)
++ return 0;
++ undo_make_mutable(fname, fileflags);
++ }
++#else
++ mode = fileflags; /* avoid compiler warning */
++#endif
++
++ return -1;
+ }
+
+ #else
diff --git a/t_stub.c b/t_stub.c
--- a/t_stub.c
+++ b/t_stub.c
int preserve_times = 0;
int preserve_xattrs = 0;
mode_t orig_umask = 002;
-@@ -90,3 +91,23 @@ struct filter_list_struct daemon_filter_list;
+@@ -90,3 +91,27 @@ struct filter_list_struct daemon_filter_list;
{
return "tester";
}
+
+#if defined SUPPORT_FILEFLAGS || defined SUPPORT_FORCE_CHANGE
-+ int make_mutable(UNUSED(const char *fname), UNUSED(mode_t mode), UNUSED(uint32 fileflags), UNUSED(uint32 iflags))
++ uint32 make_mutable(UNUSED(const char *fname), UNUSED(mode_t *mode), UNUSED(uint32 fileflags), UNUSED(uint32 iflags))
+{
+ return 0;
+}
+
-+/* Undo a prior make_mutable() call that returned a 1. */
+ int undo_make_mutable(UNUSED(const char *fname), UNUSED(uint32 fileflags))
+{
+ return 0;
+}
++
++ int make_parentdir_mutable(UNUSED(const char *fname), UNUSED(uint32 iflags), UNUSED(char *parent_dirbuf), UNUSED(int parent_dirbuf_size))
++{
++ return 0;
++}
+#endif
+
+#ifdef SUPPORT_XATTRS
diff --git a/util.c b/util.c
--- a/util.c
+++ b/util.c
-@@ -30,6 +30,7 @@ extern int modify_window;
- extern int relative_paths;
- extern int preserve_times;
- extern int human_readable;
-+extern int force_change;
- extern int preserve_xattrs;
- extern char *module_dir;
- extern unsigned int module_dirlen;
-@@ -124,9 +125,34 @@ NORETURN void overflow_exit(const char *str)
- exit_cleanup(RERR_MALLOC);
- }
+@@ -125,7 +125,7 @@ NORETURN void overflow_exit(const char *str)
-+#ifdef SUPPORT_FORCE_CHANGE
-+static int try_a_force_change(const char *fname, time_t modtime, mode_t mode, uint32 fileflags)
-+{
-+ if (fileflags == NO_FFLAGS) {
-+ STRUCT_STAT st;
-+ if (x_lstat(fname, &st, NULL) == 0)
-+ fileflags = st.st_flags;
-+ }
-+
-+ if (fileflags != NO_FFLAGS && make_mutable(fname, mode, fileflags, force_change) > 0) {
-+ int save_force_change = force_change;
-+
-+ force_change = 0; /* Make certain we can't come back here. */
-+ ret = set_modtime(fname, modtime, mode, fileflags);
-+ force_change = save_force_change;
-+
-+ undo_make_mutable(fname, fileflags);
-+ }
-+
-+ errno = EPERM;
-+
-+ return -1;
-+}
-+#endif
-+
/* This returns 0 for success, 1 for a symlink if symlink time-setting
* is not possible, or -1 for any other error. */
-int set_modtime(const char *fname, time_t modtime, mode_t mode)
{
static int switch_step = 0;
-@@ -141,6 +167,11 @@ int set_modtime(const char *fname, time_t modtime, mode_t mode)
+@@ -138,7 +138,7 @@ int set_modtime(const char *fname, time_t modtime, mode_t mode)
+ switch (switch_step) {
+ #ifdef HAVE_UTIMENSAT
#include "case_N.h"
- if (do_utimensat(fname, modtime, 0) == 0)
+- if (do_utimensat(fname, modtime, 0) == 0)
++ if (do_utimensat(fname, modtime, 0, mode, fileflags) == 0)
break;
-+#ifdef SUPPORT_FORCE_CHANGE
-+ if (force_change && errno == EPERM
-+ && try_a_force_change(fname, modtime, mode, fileflags) == 0)
-+ break;
-+#endif
if (errno != ENOSYS)
return -1;
- switch_step++;
-@@ -151,6 +182,11 @@ int set_modtime(const char *fname, time_t modtime, mode_t mode)
+@@ -148,7 +148,7 @@ int set_modtime(const char *fname, time_t modtime, mode_t mode)
+
+ #ifdef HAVE_LUTIMES
#include "case_N.h"
- if (do_lutimes(fname, modtime, 0) == 0)
+- if (do_lutimes(fname, modtime, 0) == 0)
++ if (do_lutimes(fname, modtime, 0, mode, fileflags) == 0)
break;
-+#ifdef SUPPORT_FORCE_CHANGE
-+ if (force_change && errno == EPERM
-+ && try_a_force_change(fname, modtime, mode, fileflags) == 0)
-+ break;
-+#endif
if (errno != ENOSYS)
return -1;
- switch_step++;
-@@ -174,6 +210,13 @@ int set_modtime(const char *fname, time_t modtime, mode_t mode)
- if (do_utime(fname, modtime, 0) == 0)
+@@ -167,10 +167,10 @@ int set_modtime(const char *fname, time_t modtime, mode_t mode)
+
+ #include "case_N.h"
+ #ifdef HAVE_UTIMES
+- if (do_utimes(fname, modtime, 0) == 0)
++ if (do_utimes(fname, modtime, 0, mode, fileflags) == 0)
+ break;
+ #else
+- if (do_utime(fname, modtime, 0) == 0)
++ if (do_utime(fname, modtime, 0, mode, fileflags) == 0)
break;
#endif
-+#ifdef SUPPORT_FORCE_CHANGE
-+ if (force_change && errno == EPERM
-+ && try_a_force_change(fname, modtime, mode, fileflags) == 0)
-+ break;
-+#else
-+ fileflags = 0; /* avoid compiler warning */
-+#endif
- return -1;
- }
diff --git a/xattrs.c b/xattrs.c
--- a/xattrs.c
+++ b/xattrs.c
-@@ -1041,7 +1041,7 @@ int set_stat_xattr(const char *fname, struct file_struct *file, mode_t new_mode)
+@@ -1042,7 +1042,7 @@ int set_stat_xattr(const char *fname, struct file_struct *file, mode_t new_mode)
mode = (fst.st_mode & _S_IFMT) | (fmode & ACCESSPERMS)
| (S_ISDIR(fst.st_mode) ? 0700 : 0600);
if (fst.st_mode != mode)
git.samba.org / rsync.git / patches.git / blobdiff