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db_include/common/file_perm.h

@@ -0,0 +1,56 @@
+/*-------------------------------------------------------------------------
+ *
+ * File and directory permission definitions
+ *
+ *
+ * Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/common/file_perm.h
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef FILE_PERM_H
+#define FILE_PERM_H
+
+#include <sys/stat.h>
+
+/*
+ * Mode mask for data directory permissions that only allows the owner to
+ * read/write directories and files.
+ *
+ * This is the default.
+ */
+#define PG_MODE_MASK_OWNER		    (S_IRWXG | S_IRWXO)
+
+/*
+ * Mode mask for data directory permissions that also allows group read/execute.
+ */
+#define PG_MODE_MASK_GROUP			(S_IWGRP | S_IRWXO)
+
+/* Default mode for creating directories */
+#define PG_DIR_MODE_OWNER			S_IRWXU
+
+/* Mode for creating directories that allows group read/execute */
+#define PG_DIR_MODE_GROUP			(S_IRWXU | S_IRGRP | S_IXGRP)
+
+/* Default mode for creating files */
+#define PG_FILE_MODE_OWNER		    (S_IRUSR | S_IWUSR)
+
+/* Mode for creating files that allows group read */
+#define PG_FILE_MODE_GROUP			(S_IRUSR | S_IWUSR | S_IRGRP)
+
+/* Modes for creating directories and files in the data directory */
+extern int	pg_dir_create_mode;
+extern int	pg_file_create_mode;
+
+/* Mode mask to pass to umask() */
+extern int	pg_mode_mask;
+
+/* Set permissions and mask based on the provided mode */
+extern void SetDataDirectoryCreatePerm(int dataDirMode);
+
+/* Set permissions and mask based on the mode of the data directory */
+extern bool GetDataDirectoryCreatePerm(const char *dataDir);
+
+#endif							/* FILE_PERM_H */