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authorLennart Poettering <lennart@poettering.net>2011-10-07 21:06:39 +0200
committerLennart Poettering <lennart@poettering.net>2011-10-07 22:02:05 +0200
commit87d2c1ff6a7375f03476767e6f59454bcc5cd04b (patch)
tree26824a2485942702b3472cc73191c01e78c622d1 /src/sd-id128.h
parent9a36607584bbd1d78775353e022a51794b4e27b1 (diff)
journal: add preliminary incomplete implementation
Diffstat (limited to 'src/sd-id128.h')
-rw-r--r--src/sd-id128.h56
1 files changed, 56 insertions, 0 deletions
diff --git a/src/sd-id128.h b/src/sd-id128.h
new file mode 100644
index 0000000000..bfae78b97d
--- /dev/null
+++ b/src/sd-id128.h
@@ -0,0 +1,56 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#ifndef fooid128hfoo
+#define fooid128hfoo
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 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
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <inttypes.h>
+#include <stdbool.h>
+#include <string.h>
+
+typedef union sd_id128 sd_id128_t;
+
+union sd_id128 {
+ uint8_t bytes[16];
+ uint64_t qwords[2];
+};
+
+char *sd_id128_to_string(sd_id128_t id, char s[33]);
+
+int sd_id128_from_string(const char s[33], sd_id128_t *ret);
+
+int sd_id128_randomize(sd_id128_t *ret);
+
+sd_id128_t sd_id128_make_v4_uuid(sd_id128_t id);
+
+int sd_id128_get_machine(sd_id128_t *ret);
+
+int sd_id128_get_boot(sd_id128_t *ret);
+
+#define SD_ID128_MAKE(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15) \
+ ((sd_id128_t) { .bytes = { 0x##v0, 0x##v1, 0x##v2, 0x##v3, 0x##v4, 0x##v5, 0x##v6, 0x##v7, \
+ 0x##v8, 0x##v9, 0x##v10, 0x##v11, 0x##v12, 0x##v13, 0x##v14, 0x##v15 }})
+
+static inline bool sd_id128_equal(sd_id128_t a, sd_id128_t b) {
+ return memcmp(&a, &b, 16) == 0;
+}
+
+#endif