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sd-id128: also refuse an empty invocation ID

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This commit is contained in:
Yu Watanabe 2022-12-14 13:40:42 +09:00
parent 786b652c89
commit 75fa1f25c0
2 changed files with 5 additions and 1 deletions
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3
man/sd_id128_get_machine.xml
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@ -139,7 +139,8 @@
<listitem><para>Returned by <function>sd_id128_get_machine()</function> and
<function>sd_id128_get_machine_app_specific()</function> when <filename>/etc/machine-id</filename>
is empty or all zeros.</para></listitem>
is empty or all zeros. Also returned by <function>sd_id128_get_invocation()</function> when the
invocation ID is all zeros.</para></listitem>
</varlistentry>
<varlistentry>

3
src/libsystemd/sd-id128/sd-id128.c
View file

@ -284,6 +284,9 @@ _public_ int sd_id128_get_invocation(sd_id128_t *ret) {
r = get_invocation_from_keyring(&saved_invocation_id);
if (r < 0)
return r;
if (sd_id128_is_null(saved_invocation_id))
return -ENOMEDIUM;
}
if (ret)