From ce31ec116f9bf4ad45952b6a200f4181fac311a3 Mon Sep 17 00:00:00 2001 From: Luke Shumaker Date: Tue, 13 Sep 2016 21:24:07 -0400 Subject: ./tools/notsd-move --- src/libsystemd/sd_id128_get_machine.xml | 129 ++++++++++++++++++++++++++++++++ 1 file changed, 129 insertions(+) create mode 100644 src/libsystemd/sd_id128_get_machine.xml (limited to 'src/libsystemd/sd_id128_get_machine.xml') diff --git a/src/libsystemd/sd_id128_get_machine.xml b/src/libsystemd/sd_id128_get_machine.xml new file mode 100644 index 0000000000..2ad1f8f728 --- /dev/null +++ b/src/libsystemd/sd_id128_get_machine.xml @@ -0,0 +1,129 @@ + + + + + + + + + sd_id128_get_machine + systemd + + + + Developer + Lennart + Poettering + lennart@poettering.net + + + + + + sd_id128_get_machine + 3 + + + + sd_id128_get_machine + sd_id128_get_boot + Retrieve 128-bit IDs + + + + + #include <systemd/sd-id128.h> + + + int sd_id128_get_machine + sd_id128_t *ret + + + + int sd_id128_get_boot + sd_id128_t *ret + + + + + + + Description + + sd_id128_get_machine() returns the + machine ID of the executing host. This reads and parses the + machine-id5 + file. This function caches the machine ID internally to make + retrieving the machine ID a cheap operation. + + sd_id128_get_boot() returns the boot ID + of the executing kernel. This reads and parses the + /proc/sys/kernel/random/boot_id file exposed + by the kernel. It is randomly generated early at boot and is + unique for every running kernel instance. See + random4 + for more information. This function also internally caches the + returned ID to make this call a cheap operation. + + Note that sd_id128_get_boot() always + returns a UUID v4 compatible ID. + sd_id128_get_machine() will also return a + UUID v4-compatible ID on new installations but might not on older. + It is possible to convert the machine ID into a UUID v4-compatible + one. For more information, see + machine-id5. + + For more information about the sd_id128_t + type see + sd-id1283. + + + + Return Value + + The two calls return 0 on success (in which case + ret is filled in), or a negative + errno-style error code. + + + + Notes + + The sd_id128_get_machine() and + sd_id128_get_boot() interfaces are available + as a shared library, which can be compiled and linked to with the + libsystemd pkg-config1 + file. + + + + See Also + + + systemd1, + sd-id1283, + machine-id5, + random4, + sd_id128_randomize3 + + + + -- cgit v1.2.3-54-g00ecf