struct uc_state *state = &uc_state;
NTSTATUS status;
int ret = -1;
+ int parent_stat_errno = 0;
*state = (struct uc_state) {
.mem_ctx = mem_ctx,
DBG_DEBUG("Begin: name [%s] dirpath [%s] name [%s]\n",
state->smb_fname->base_name, state->dirpath, state->name);
- {
- int parent_stat_errno = 0;
+ /*
+ * stat the name - if it exists then we can add the stream back (if
+ * there was one) and be done!
+ */
- /*
- * stat the name - if it exists then we can add the stream back (if
- * there was one) and be done!
- */
+ ret = vfs_stat(state->conn, state->smb_fname);
+ if (ret == 0) {
+ status = check_for_dot_component(state->smb_fname);
+ if (!NT_STATUS_IS_OK(status)) {
+ goto fail;
+ }
+ /* Add the path (not including the stream) to the cache. */
+ stat_cache_add(state->orig_path,
+ state->smb_fname->base_name,
+ state->smb_fname->twrp,
+ state->case_sensitive);
+ DBG_DEBUG("Conversion of base_name finished "
+ "[%s] -> [%s]\n",
+ state->orig_path, state->smb_fname->base_name);
+ goto done;
+ }
- ret = vfs_stat(state->conn, state->smb_fname);
- if (ret == 0) {
- status = check_for_dot_component(state->smb_fname);
- if (!NT_STATUS_IS_OK(status)) {
- goto fail;
- }
- /* Add the path (not including the stream) to the cache. */
- stat_cache_add(state->orig_path,
- state->smb_fname->base_name,
- state->smb_fname->twrp,
- state->case_sensitive);
- DBG_DEBUG("Conversion of base_name finished "
- "[%s] -> [%s]\n",
- state->orig_path, state->smb_fname->base_name);
- goto done;
+ /* Stat failed - ensure we don't use it. */
+ SET_STAT_INVALID(state->smb_fname->st);
+
+ /*
+ * Note: we must continue processing a path if we get EACCES
+ * from stat. With NFS4 permissions the file might be lacking
+ * READ_ATTR, but if the parent has LIST permissions we can
+ * resolve the path in the path traversal loop down below.
+ */
+
+ if (errno == ENOENT) {
+ /* Optimization when creating a new file - only
+ the last component doesn't exist.
+ NOTE : check_parent_exists() doesn't preserve errno.
+ */
+ int saved_errno = errno;
+ status = check_parent_exists(state->mem_ctx,
+ state->conn,
+ state->posix_pathnames,
+ state->smb_fname,
+ &state->dirpath,
+ &state->name,
+ &parent_stat_errno);
+ errno = saved_errno;
+ if (!NT_STATUS_IS_OK(status)) {
+ goto fail;
}
+ }
- /* Stat failed - ensure we don't use it. */
- SET_STAT_INVALID(state->smb_fname->st);
+ /*
+ * A special case - if we don't have any wildcards or mangling chars and are case
+ * sensitive or the underlying filesystem is case insensitive then searching
+ * won't help.
+ *
+ * NB. As POSIX sets state->case_sensitive as
+ * true we will never call into mangle_is_mangled() here.
+ */
- /*
- * Note: we must continue processing a path if we get EACCES
- * from stat. With NFS4 permissions the file might be lacking
- * READ_ATTR, but if the parent has LIST permissions we can
- * resolve the path in the path traversal loop down below.
- */
+ if ((state->case_sensitive || !(state->conn->fs_capabilities &
+ FILE_CASE_SENSITIVE_SEARCH)) &&
+ !mangle_is_mangled(state->smb_fname->base_name, state->conn->params)) {
- if (errno == ENOENT) {
- /* Optimization when creating a new file - only
- the last component doesn't exist.
- NOTE : check_parent_exists() doesn't preserve errno.
- */
- int saved_errno = errno;
- status = check_parent_exists(state->mem_ctx,
- state->conn,
- state->posix_pathnames,
- state->smb_fname,
- &state->dirpath,
- &state->name,
- &parent_stat_errno);
- errno = saved_errno;
- if (!NT_STATUS_IS_OK(status)) {
- goto fail;
- }
+ status = check_for_dot_component(state->smb_fname);
+ if (!NT_STATUS_IS_OK(status)) {
+ goto fail;
}
/*
- * A special case - if we don't have any wildcards or mangling chars and are case
- * sensitive or the underlying filesystem is case insensitive then searching
- * won't help.
- *
- * NB. As POSIX sets state->case_sensitive as
- * true we will never call into mangle_is_mangled() here.
+ * The stat failed. Could be ok as it could be
+ * a new file.
*/
- if ((state->case_sensitive || !(state->conn->fs_capabilities &
- FILE_CASE_SENSITIVE_SEARCH)) &&
- !mangle_is_mangled(state->smb_fname->base_name, state->conn->params)) {
-
- status = check_for_dot_component(state->smb_fname);
- if (!NT_STATUS_IS_OK(status)) {
- goto fail;
- }
-
+ if (errno == ENOTDIR || errno == ELOOP) {
+ status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
+ goto fail;
+ } else if (errno == ENOENT) {
/*
- * The stat failed. Could be ok as it could be
- * a new file.
- */
-
- if (errno == ENOTDIR || errno == ELOOP) {
+ * Was it a missing last component ?
+ * or a missing intermediate component ?
+ *
+ * Optimization.
+ *
+ * For this code path we can guarantee that
+ * we have gone through check_parent_exists()
+ * and it returned NT_STATUS_OK.
+ *
+ * Either there was no parent component (".")
+ * parent_stat_errno == 0 and we have a missing
+ * last component here.
+ *
+ * OR check_parent_exists() called STAT/LSTAT
+ * and if it failed parent_stat_errno has been
+ * set telling us if the parent existed or not.
+ *
+ * Either way we can avoid another STAT/LSTAT
+ * system call on the parent here.
+ */
+ if (parent_stat_errno == ENOTDIR ||
+ parent_stat_errno == ENOENT ||
+ parent_stat_errno == ELOOP) {
status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
goto fail;
- } else if (errno == ENOENT) {
- /*
- * Was it a missing last component ?
- * or a missing intermediate component ?
- *
- * Optimization.
- *
- * For this code path we can guarantee that
- * we have gone through check_parent_exists()
- * and it returned NT_STATUS_OK.
- *
- * Either there was no parent component (".")
- * parent_stat_errno == 0 and we have a missing
- * last component here.
- *
- * OR check_parent_exists() called STAT/LSTAT
- * and if it failed parent_stat_errno has been
- * set telling us if the parent existed or not.
- *
- * Either way we can avoid another STAT/LSTAT
- * system call on the parent here.
- */
- if (parent_stat_errno == ENOTDIR ||
- parent_stat_errno == ENOENT ||
- parent_stat_errno == ELOOP) {
- status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
- goto fail;
- }
-
- /*
- * Missing last component is ok - new file.
- * Also deal with permission denied elsewhere.
- * Just drop out to done.
- */
- goto done;
}
+
+ /*
+ * Missing last component is ok - new file.
+ * Also deal with permission denied elsewhere.
+ * Just drop out to done.
+ */
+ goto done;
}
}
projects / thirdparty / samba.git / commitdiff
