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64 lines
2.8 KiB
64 lines
2.8 KiB
2 months ago
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From 66c103ed26f623a54318a6f4fa48f895fb6efab8 Mon Sep 17 00:00:00 2001
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From: Yu Watanabe <watanabe.yu+github@gmail.com>
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Date: Thu, 8 Dec 2022 15:49:02 +0900
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Subject: [PATCH] man: mention that sd_id128_get_boot() and friend may return
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-ENOSYS
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And drop to mention sd_id128_get_boot_app_specific() may return -ENOENT
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or -ENOMEDIUM. The function does not read /etc/machine-id. But reads a
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file in the procfs, which is a kind of the kernel API. Hence the
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failures are caused only when the system has wrong setup.
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(cherry picked from commit c576920e673114529c5bfe5ea29891a24a443338)
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Related: RHEL-27512
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---
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man/sd_id128_get_machine.xml | 22 ++++++++++++++--------
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1 file changed, 14 insertions(+), 8 deletions(-)
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diff --git a/man/sd_id128_get_machine.xml b/man/sd_id128_get_machine.xml
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index 8bc76b686b..dbc6d4885d 100644
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--- a/man/sd_id128_get_machine.xml
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+++ b/man/sd_id128_get_machine.xml
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@@ -129,19 +129,17 @@
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<varlistentry>
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<term><constant>-ENOENT</constant></term>
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- <listitem><para>Returned by <function>sd_id128_get_machine()</function>,
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- <function>sd_id128_get_machine_app_specific()</function>, and
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- <function>sd_id128_get_boot_app_specific()</function> when <filename>/etc/machine-id</filename> is
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- missing.</para></listitem>
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+ <listitem><para>Returned by <function>sd_id128_get_machine()</function> and
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+ <function>sd_id128_get_machine_app_specific()</function> when <filename>/etc/machine-id</filename>
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+ is missing.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><constant>-ENOMEDIUM</constant></term>
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- <listitem><para>Returned by <function>sd_id128_get_machine()</function>,
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- <function>sd_id128_get_machine_app_specific()</function>, and
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- <function>sd_id128_get_boot_app_specific()</function> when <filename>/etc/machine-id</filename> is
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- empty or all zeros.</para></listitem>
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+ <listitem><para>Returned by <function>sd_id128_get_machine()</function> and
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+ <function>sd_id128_get_machine_app_specific()</function> when <filename>/etc/machine-id</filename>
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+ is empty or all zeros.</para></listitem>
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</varlistentry>
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<varlistentry>
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@@ -152,6 +150,14 @@
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<filename>/etc/machine-id</filename> is <literal>uninitialized</literal>.</para></listitem>
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</varlistentry>
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+ <varlistentry>
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+ <term><constant>-ENOSYS</constant></term>
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+
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+ <listitem><para>Returned by <function>sd_id128_get_boot()</function> and
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+ <function>sd_id128_get_boot_app_specific()</function> when <filename>/proc/</filename> is not
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+ mounted.</para></listitem>
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+ </varlistentry>
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+
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<varlistentry>
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<term><constant>-ENXIO</constant></term>
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