diff options
| author | Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> | 2018-05-16 13:55:12 +0200 |
|---|---|---|
| committer | Sven Eden <yamakuzure@gmx.net> | 2018-08-24 16:47:08 +0200 |
| commit | e8c63956a5a8d0c40ac2194c545edccb727cff12 (patch) | |
| tree | 70bd1e95735b3d20c376bc134a9d06d19a1864c8 /man | |
| parent | a1517bda5fc61271bc01ba7424b70e94a56e35a9 (diff) | |
sd-id128: return -ENOMEDIUM on null id
We currently return -ENOMEDIUM when /etc/machine-id is empty, and -EINVAL when
it is all zeros. But -EINVAL is also used for invalid args. The distinction
between empty and all-zero is not very important, let's use the same return
code.
Also document -ENOENT and -ENOMEDIUM since they can be a bit surprising.
Diffstat (limited to 'man')
| -rw-r--r-- | man/sd_id128_get_machine.xml | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/man/sd_id128_get_machine.xml b/man/sd_id128_get_machine.xml index 2694c186b..f3e151760 100644 --- a/man/sd_id128_get_machine.xml +++ b/man/sd_id128_get_machine.xml @@ -116,9 +116,11 @@ <refsect1> <title>Return Value</title> - <para>The two calls return 0 on success (in which case - <parameter>ret</parameter> is filled in), or a negative - errno-style error code.</para> + <para>Those calls return 0 on success (in which case <parameter>ret</parameter> is filled in), + or a negative errno-style error code. In particular, <function>sd_id128_get_machine()</function> + and <function>sd_id128_get_machine_app_specific()</function> return <constant>-ENOENT</constant> + if <filename>/etc/machine-id</filename> is missing, and <constant>-ENOMEDIUM</constant> if is + empty or all zeros.</para> </refsect1> <refsect1> |