Prep v228: Added missing src/basic/unaligned.h from upstream

diff --git a/.gitignore b/.gitignore
index 199830b5c12ad8d67a7c7695617c2fbbf45a6778..61e52a6b9ebc1268f5fa10891338d7ea9f67f07b 100644 (file)
--- a/.gitignore
+++ b/.gitignore
@@ -289,6 +289,13 @@ config.status
 configure
 stamp-*
 
 configure
 stamp-*
 

+# elogind specific
+/elogind
+/elogind-cgroups-agent
+/elogind-inhibit
+/test-libelogind*
+
+

 # Local Helper Scripts and Tools - Not for distribution
 check_tree.sh
 cleanup*.sh
 # Local Helper Scripts and Tools - Not for distribution
 check_tree.sh
 cleanup*.sh

diff --git a/Makefile.am b/Makefile.am
index d845d08fce4e04561f632d9188e2edaf52e74bc7..7128d10586ab6a7da7524ab920eb7f11cf9fe900 100644 (file)
--- a/Makefile.am
+++ b/Makefile.am
@@ -305,6 +305,7 @@ libbasic_la_SOURCES = \
        src/basic/hostname-util.c \
        src/basic/unit-name.c \
        src/basic/unit-name.h \
        src/basic/hostname-util.c \
        src/basic/unit-name.c \
        src/basic/unit-name.h \

+       src/basic/unaligned.h \

        src/basic/util.c \
        src/basic/util.h \
        src/basic/path-util.c \
        src/basic/util.c \
        src/basic/util.h \
        src/basic/path-util.c \

diff --git a/src/basic/unaligned.h b/src/basic/unaligned.h
new file mode 100644 (file)
index 0000000..a8115ea
--- /dev/null
+++ b/src/basic/unaligned.h
@@ -0,0 +1,113 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#pragma once
+
+/***
+  This file is part of systemd.
+
+  Copyright 2014 Tom Gundersen
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <endian.h>
+#include <stdint.h>
+
+/* BE */
+
+static inline uint16_t unaligned_read_be16(const void *_u) {
+        const uint8_t *u = _u;
+
+        return (((uint16_t) u[0]) << 8) |
+                ((uint16_t) u[1]);
+}
+
+static inline uint32_t unaligned_read_be32(const void *_u) {
+        const uint8_t *u = _u;
+
+        return (((uint32_t) unaligned_read_be16(u)) << 16) |
+                ((uint32_t) unaligned_read_be16(u + 2));
+}
+
+static inline uint64_t unaligned_read_be64(const void *_u) {
+        const uint8_t *u = _u;
+
+        return (((uint64_t) unaligned_read_be32(u)) << 32) |
+                ((uint64_t) unaligned_read_be32(u + 4));
+}
+
+static inline void unaligned_write_be16(void *_u, uint16_t a) {
+        uint8_t *u = _u;
+
+        u[0] = (uint8_t) (a >> 8);
+        u[1] = (uint8_t) a;
+}
+
+static inline void unaligned_write_be32(void *_u, uint32_t a) {
+        uint8_t *u = _u;
+
+        unaligned_write_be16(u, (uint16_t) (a >> 16));
+        unaligned_write_be16(u + 2, (uint16_t) a);
+}
+
+static inline void unaligned_write_be64(void *_u, uint64_t a) {
+        uint8_t *u = _u;
+
+        unaligned_write_be32(u, (uint32_t) (a >> 32));
+        unaligned_write_be32(u + 4, (uint32_t) a);
+}
+
+/* LE */
+
+static inline uint16_t unaligned_read_le16(const void *_u) {
+        const uint8_t *u = _u;
+
+        return (((uint16_t) u[1]) << 8) |
+                ((uint16_t) u[0]);
+}
+
+static inline uint32_t unaligned_read_le32(const void *_u) {
+        const uint8_t *u = _u;
+
+        return (((uint32_t) unaligned_read_le16(u + 2)) << 16) |
+                ((uint32_t) unaligned_read_le16(u));
+}
+
+static inline uint64_t unaligned_read_le64(const void *_u) {
+        const uint8_t *u = _u;
+
+        return (((uint64_t) unaligned_read_le32(u + 4)) << 32) |
+                ((uint64_t) unaligned_read_le32(u));
+}
+
+static inline void unaligned_write_le16(void *_u, uint16_t a) {
+        uint8_t *u = _u;
+
+        u[0] = (uint8_t) a;
+        u[1] = (uint8_t) (a >> 8);
+}
+
+static inline void unaligned_write_le32(void *_u, uint32_t a) {
+        uint8_t *u = _u;
+
+        unaligned_write_le16(u, (uint16_t) a);
+        unaligned_write_le16(u + 2, (uint16_t) (a >> 16));
+}
+
+static inline void unaligned_write_le64(void *_u, uint64_t a) {
+        uint8_t *u = _u;
+
+        unaligned_write_le32(u, (uint32_t) a);
+        unaligned_write_le32(u + 4, (uint32_t) (a >> 32));
+}