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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 02:25:50 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 02:25:50 +0000 |
commit | 19f4f86bfed21c5326ed2acebe1163f3a83e832b (patch) | |
tree | d59b9989ce55ed23693e80974d94c856f1c2c8b1 /man/sd_bus_message_verify_type.xml | |
parent | Initial commit. (diff) | |
download | systemd-19f4f86bfed21c5326ed2acebe1163f3a83e832b.tar.xz systemd-19f4f86bfed21c5326ed2acebe1163f3a83e832b.zip |
Adding upstream version 241.upstream/241upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'man/sd_bus_message_verify_type.xml')
-rw-r--r-- | man/sd_bus_message_verify_type.xml | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/man/sd_bus_message_verify_type.xml b/man/sd_bus_message_verify_type.xml new file mode 100644 index 0000000..fcb9f19 --- /dev/null +++ b/man/sd_bus_message_verify_type.xml @@ -0,0 +1,99 @@ +<?xml version='1.0'?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" + "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> +<!-- SPDX-License-Identifier: LGPL-2.1+ --> + +<refentry id="sd_bus_message_verify_type" xmlns:xi="http://www.w3.org/2001/XInclude"> + <refentryinfo> + <title>sd_bus_message_verify_type</title> + <productname>systemd</productname> + </refentryinfo> + + <refmeta> + <refentrytitle>sd_bus_message_verify_type</refentrytitle> + <manvolnum>3</manvolnum> + </refmeta> + + <refnamediv> + <refname>sd_bus_message_verify_type</refname> + + <refpurpose>Check if the message has specified type at the current location</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <funcsynopsis> + <funcsynopsisinfo>#include <systemd/sd-bus.h></funcsynopsisinfo> + + <funcprototype> + <funcdef>int sd_bus_message_verify_type</funcdef> + <paramdef>sd_bus_message *<parameter>m</parameter></paramdef> + <paramdef>char <parameter>type</parameter></paramdef> + <paramdef>const char* <parameter>contents</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><function>sd_bus_message_verify_type()</function> checks if the complete type at the + current location in the message <parameter>m</parameter> matches the specified + <parameter>type</parameter> and <parameter>contents</parameter>. If non-zero, parameter + <parameter>type</parameter> must be one of the types specified in + <citerefentry><refentrytitle>sd_bus_message_append</refentrytitle><manvolnum>1</manvolnum></citerefentry>. + If non-null, parameter <parameter>contents</parameter> must be a valid sequence of complete + types. If both <parameter>type</parameter> and <parameter>contents</parameter> are specified + <parameter>type</parameter> must be a container type.</para> + + <para>If <parameter>type</parameter> is specified, the type in the message must match. If + <parameter>contents</parameter> is specified, the type in the message must be a container type + with this signature.</para> + </refsect1> + + <refsect1> + <title>Return Value</title> + + <para>On success, this call returns true if the type matches and zero if not (the message + <parameter>m</parameter> contains different data or the end of the message has been reached). On + failure, it returns a negative errno-style error code.</para> + </refsect1> + + <refsect1 id='errors'> + <title>Errors</title> + + <para>Returned errors may indicate the following problems:</para> + + <variablelist> + + <varlistentry> + <term><constant>-EINVAL</constant></term> + + <listitem><para><parameter>m</parameter> or both <parameter>type</parameter> and + <parameter>contents</parameter> are <constant>NULL</constant>.</para> + + <para>Arguments do not satisfy other contraints listed above.</para> + </listitem> + </varlistentry> + + <varlistentry> + <term><constant>-EPERM</constant></term> + + <listitem><para>Message <parameter>m</parameter> is not sealed. + </para></listitem> + </varlistentry> + </variablelist> + </refsect1> + + <xi:include href="libsystemd-pkgconfig.xml" /> + + <refsect1> + <title>See Also</title> + + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>, + <citerefentry><refentrytitle>sd_bus_message_append</refentrytitle><manvolnum>3</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> |