diff options
| -rw-r--r-- | man/sd_id128_get_machine.xml | 8 | ||||
| -rw-r--r-- | src/libelogind/sd-id128/sd-id128.c | 2 |
2 files changed, 6 insertions, 4 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> diff --git a/src/libelogind/sd-id128/sd-id128.c b/src/libelogind/sd-id128/sd-id128.c index af2ff8353..80548fdfc 100644 --- a/src/libelogind/sd-id128/sd-id128.c +++ b/src/libelogind/sd-id128/sd-id128.c @@ -98,7 +98,7 @@ _public_ int sd_id128_get_machine(sd_id128_t *ret) { return r; if (sd_id128_is_null(saved_machine_id)) - return -EINVAL; + return -ENOMEDIUM; } *ret = saved_machine_id; |