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Merge pull request #16514 from keszybz/zstd-decompress-fix
Fix coredumpctl operation with zstd-compressed journals
This commit is contained in:
commit
f25e9eda52
3
TODO
3
TODO
@ -1029,7 +1029,7 @@ Features:
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- journal: add a setgid "systemd-journal" utility to invoke from libsystemd-journal, which passes fds via STDOUT and does PK access
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- journal: add a setgid "systemd-journal" utility to invoke from libsystemd-journal, which passes fds via STDOUT and does PK access
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- journactl: support negative filtering, i.e. FOOBAR!="waldo",
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- journactl: support negative filtering, i.e. FOOBAR!="waldo",
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and !FOOBAR for events without FOOBAR.
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and !FOOBAR for events without FOOBAR.
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- journal: store timestamp of journal_file_set_offline() int he header,
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- journal: store timestamp of journal_file_set_offline() in the header,
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so it is possible to display when the file was last synced.
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so it is possible to display when the file was last synced.
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- journal-send.c, log.c: when the log socket is clogged, and we drop, count this and write a message about this when it gets unclogged again.
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- journal-send.c, log.c: when the log socket is clogged, and we drop, count this and write a message about this when it gets unclogged again.
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- journal: find a way to allow dropping history early, based on priority, other rules
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- journal: find a way to allow dropping history early, based on priority, other rules
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@ -1071,6 +1071,7 @@ Features:
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them via machined, and also watch containers coming and going.
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them via machined, and also watch containers coming and going.
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Benefit: nspawn --ephemeral would start working nicely with the journal.
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Benefit: nspawn --ephemeral would start working nicely with the journal.
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- assign MESSAGE_ID to log messages about failed services
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- assign MESSAGE_ID to log messages about failed services
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- check if loop in decompress_blob_xz() is necessary
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* add a test if all entries in the catalog are properly formatted.
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* add a test if all entries in the catalog are properly formatted.
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(Adding dashes in a catalog entry currently results in the catalog entry
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(Adding dashes in a catalog entry currently results in the catalog entry
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@ -18,6 +18,7 @@
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<refnamediv>
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<refnamediv>
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<refname>sd_journal_get_data</refname>
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<refname>sd_journal_get_data</refname>
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<refname>sd_journal_enumerate_data</refname>
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<refname>sd_journal_enumerate_data</refname>
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<refname>sd_journal_enumerate_available_data</refname>
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<refname>sd_journal_restart_data</refname>
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<refname>sd_journal_restart_data</refname>
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<refname>SD_JOURNAL_FOREACH_DATA</refname>
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<refname>SD_JOURNAL_FOREACH_DATA</refname>
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<refname>sd_journal_set_data_threshold</refname>
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<refname>sd_journal_set_data_threshold</refname>
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@ -44,6 +45,13 @@
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<paramdef>size_t *<parameter>length</parameter></paramdef>
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<paramdef>size_t *<parameter>length</parameter></paramdef>
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</funcprototype>
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</funcprototype>
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<funcprototype>
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<funcdef>int <function>sd_journal_enumerate_available_data</function></funcdef>
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<paramdef>sd_journal *<parameter>j</parameter></paramdef>
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<paramdef>const void **<parameter>data</parameter></paramdef>
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<paramdef>size_t *<parameter>length</parameter></paramdef>
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</funcprototype>
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<funcprototype>
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<funcprototype>
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<funcdef>void <function>sd_journal_restart_data</function></funcdef>
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<funcdef>void <function>sd_journal_restart_data</function></funcdef>
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<paramdef>sd_journal *<parameter>j</parameter></paramdef>
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<paramdef>sd_journal *<parameter>j</parameter></paramdef>
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@ -73,24 +81,18 @@
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<refsect1>
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<refsect1>
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<title>Description</title>
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<title>Description</title>
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|
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<para><function>sd_journal_get_data()</function> gets the data
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<para><function>sd_journal_get_data()</function> gets the data object associated with a specific field
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object associated with a specific field from the current journal
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from the current journal entry. It takes four arguments: the journal context object, a string with the
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entry. It takes four arguments: the journal context object, a
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field name to request, plus a pair of pointers to pointer/size variables where the data object and its
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string with the field name to request, plus a pair of pointers to
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size shall be stored in. The field name should be an entry field name. Well-known field names are listed in
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pointer/size variables where the data object and its size shall be
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<citerefentry><refentrytitle>systemd.journal-fields</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
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stored in. The field name should be an entry field name.
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but any field can be specified. The returned data is in a read-only memory map and is only valid until
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Well-known field names are listed in
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the next invocation of <function>sd_journal_get_data()</function>,
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<citerefentry><refentrytitle>systemd.journal-fields</refentrytitle><manvolnum>7</manvolnum></citerefentry>.
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<function>sd_journal_enumerate_data()</function>,
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The returned data is in a read-only memory map and is only valid
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<function>sd_journal_enumerate_available_data()</function>, or when the read pointer is altered. Note
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until the next invocation of
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that the data returned will be prefixed with the field name and <literal>=</literal>. Also note that, by
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<function>sd_journal_get_data()</function> or
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default, data fields larger than 64K might get truncated to 64K. This threshold may be changed and turned
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<function>sd_journal_enumerate_data()</function>, or the read
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off with <function>sd_journal_set_data_threshold()</function> (see below).</para>
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pointer is altered. Note that the data returned will be prefixed
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with the field name and '='. Also note that, by default, data fields
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larger than 64K might get truncated to 64K. This threshold may be
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changed and turned off with
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<function>sd_journal_set_data_threshold()</function> (see
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below).</para>
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<para><function>sd_journal_enumerate_data()</function> may be used
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<para><function>sd_journal_enumerate_data()</function> may be used
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to iterate through all fields of the current entry. On each
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to iterate through all fields of the current entry. On each
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@ -99,15 +101,18 @@
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format as with <function>sd_journal_get_data()</function> and also
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format as with <function>sd_journal_get_data()</function> and also
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follows the same life-time semantics.</para>
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follows the same life-time semantics.</para>
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<para><function>sd_journal_enumerate_available_data()</function> is similar to
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<function>sd_journal_enumerate_data()</function>, but silently skips any fields which may be valid, but
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are too large or not supported by current implementation.</para>
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<para><function>sd_journal_restart_data()</function> resets the
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<para><function>sd_journal_restart_data()</function> resets the
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data enumeration index to the beginning of the entry. The next
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data enumeration index to the beginning of the entry. The next
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invocation of <function>sd_journal_enumerate_data()</function>
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invocation of <function>sd_journal_enumerate_data()</function>
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will return the first field of the entry again.</para>
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will return the first field of the entry again.</para>
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<para>Note that the <function>SD_JOURNAL_FOREACH_DATA()</function>
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<para>Note that the <function>SD_JOURNAL_FOREACH_DATA()</function> macro may be used as a handy wrapper
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macro may be used as a handy wrapper around
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around <function>sd_journal_restart_data()</function> and
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<function>sd_journal_restart_data()</function> and
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<function>sd_journal_enumerate_available_data()</function>.</para>
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<function>sd_journal_enumerate_data()</function>.</para>
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<para>Note that these functions will not work before
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<para>Note that these functions will not work before
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<citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>
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<citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>
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@ -139,18 +144,88 @@
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<refsect1>
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<refsect1>
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<title>Return Value</title>
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<title>Return Value</title>
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<para><function>sd_journal_get_data()</function> returns 0 on
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<para><function>sd_journal_get_data()</function> returns 0 on success or a negative errno-style error
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success or a negative errno-style error code. If the current entry
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code. <function>sd_journal_enumerate_data()</function> and
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does not include the specified field, -ENOENT is returned. If
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<function>sd_journal_enumerate_available_data()</function> return a positive integer if the next field
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<citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>
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has been read, 0 when no more fields remain, or a negative errno-style error code.
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has not been called at least once, -EADDRNOTAVAIL is returned.
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<function>sd_journal_restart_data()</function> doesn't return anything.
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<function>sd_journal_enumerate_data()</function> returns a
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<function>sd_journal_set_data_threshold()</function> and <function>sd_journal_get_threshold()</function>
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positive integer if the next field has been read, 0 when no more
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return 0 on success or a negative errno-style error code.</para>
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fields are known, or a negative errno-style error code.
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<function>sd_journal_restart_data()</function> returns nothing.
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<refsect2>
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<function>sd_journal_set_data_threshold()</function> and
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<title>Errors</title>
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<function>sd_journal_get_threshold()</function> return 0 on
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success or a negative errno-style error code.</para>
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<para>Returned errors may indicate the following problems:</para>
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<variablelist>
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<varlistentry id='EINVAL'>
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<term><constant>-EINVAL</constant></term>
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<listitem><para>One of the required parameters is <constant>NULL</constant> or invalid.
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</para></listitem>
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</varlistentry>
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<varlistentry id='ECHILD'>
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<term><constant>-ECHILD</constant></term>
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<listitem><para>The journal object was created in a different process.</para></listitem>
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</varlistentry>
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<varlistentry id='EADDRNOTAVAIL'>
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<term><constant>-EADDRNOTAVAIL</constant></term>
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<listitem><para>The read pointer is not positioned at a valid entry;
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<citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>
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or a related call has not been called at least once.</para></listitem>
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</varlistentry>
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<varlistentry id='ENOENT'>
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<term><constant>-ENOENT</constant></term>
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<listitem><para>The current entry does not include the specified field.</para>
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</listitem>
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</varlistentry>
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<varlistentry id='ENOMEM'>
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<term><constant>-ENOMEM</constant></term>
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<listitem><para>Memory allocation failed.</para></listitem>
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</varlistentry>
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<varlistentry id='ENOBUFS'>
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<term><constant>-ENOBUFS</constant></term>
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<listitem><para>A compressed entry is too large.</para></listitem>
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</varlistentry>
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<varlistentry id='E2BIG'>
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<term><constant>-E2BIG</constant></term>
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<listitem><para>The data field is too large for this computer architecture (e.g. above 4 GB on a
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32-bit architecture).</para></listitem>
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</varlistentry>
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<varlistentry id='EPROTONOSUPPORT'>
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<term><constant>-EPROTONOSUPPORT</constant></term>
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<listitem><para>The journal is compressed with an unsupported method or the journal uses an
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unsupported feature.</para></listitem>
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</varlistentry>
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<varlistentry id='EBADMSG'>
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<term><constant>-EBADMSG</constant></term>
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<listitem><para>The journal is corrupted (possibly just the entry being iterated over).
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</para></listitem>
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</varlistentry>
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<varlistentry id='EIO'>
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<term><constant>-EIO</constant></term>
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<listitem><para>An I/O error was reported by the kernel.</para></listitem>
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</varlistentry>
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</variablelist>
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</refsect2>
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</refsect1>
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</refsect1>
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<refsect1>
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<refsect1>
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@ -18,6 +18,7 @@
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<refnamediv>
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<refnamediv>
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<refname>sd_journal_query_unique</refname>
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<refname>sd_journal_query_unique</refname>
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<refname>sd_journal_enumerate_unique</refname>
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<refname>sd_journal_enumerate_unique</refname>
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|
<refname>sd_journal_enumerate_available_unique</refname>
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<refname>sd_journal_restart_unique</refname>
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<refname>sd_journal_restart_unique</refname>
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<refname>SD_JOURNAL_FOREACH_UNIQUE</refname>
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<refname>SD_JOURNAL_FOREACH_UNIQUE</refname>
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<refpurpose>Read unique data fields from the journal</refpurpose>
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<refpurpose>Read unique data fields from the journal</refpurpose>
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@ -33,6 +34,13 @@
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<paramdef>const char *<parameter>field</parameter></paramdef>
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<paramdef>const char *<parameter>field</parameter></paramdef>
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</funcprototype>
|
</funcprototype>
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|
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<funcprototype>
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|
<funcdef>int <function>sd_journal_enumerate_available_unique</function></funcdef>
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|
<paramdef>sd_journal *<parameter>j</parameter></paramdef>
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|
<paramdef>const void **<parameter>data</parameter></paramdef>
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|
<paramdef>size_t *<parameter>length</parameter></paramdef>
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|
</funcprototype>
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|
|
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<funcprototype>
|
<funcprototype>
|
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<funcdef>int <function>sd_journal_enumerate_unique</function></funcdef>
|
<funcdef>int <function>sd_journal_enumerate_unique</function></funcdef>
|
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<paramdef>sd_journal *<parameter>j</parameter></paramdef>
|
<paramdef>sd_journal *<parameter>j</parameter></paramdef>
|
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@ -58,33 +66,31 @@
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<refsect1>
|
<refsect1>
|
||||||
<title>Description</title>
|
<title>Description</title>
|
||||||
|
|
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<para><function>sd_journal_query_unique()</function> queries the
|
<para><function>sd_journal_query_unique()</function> queries the journal for all unique values the
|
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journal for all unique values the specified field can take. It
|
specified field can take. It takes two arguments: the journal to query and the field name to look
|
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takes two arguments: the journal to query and the field name to
|
for. Well-known field names are listed on
|
||||||
look for. Well-known field names are listed on
|
<citerefentry><refentrytitle>systemd.journal-fields</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
|
||||||
<citerefentry><refentrytitle>systemd.journal-fields</refentrytitle><manvolnum>7</manvolnum></citerefentry>.
|
but any field can be specified. Field names must be specified without a trailing
|
||||||
Field names must be specified without a trailing '='. After this
|
<literal>=</literal>. After this function has been executed successfully the field values may be queried
|
||||||
function has been executed successfully the field values may be
|
using <function>sd_journal_enumerate_unique()</function> and
|
||||||
queried using <function>sd_journal_enumerate_unique()</function>.
|
<function>sd_journal_enumerate_available_unique()</function>. Invoking one of those calls will change the
|
||||||
Invoking this call a second time will change the field name being
|
field name being queried and reset the enumeration index to the first field value that matches.</para>
|
||||||
queried and reset the enumeration index to the first field value
|
|
||||||
that matches.</para>
|
|
||||||
|
|
||||||
<para><function>sd_journal_enumerate_unique()</function> may be
|
<para><function>sd_journal_enumerate_unique()</function> may be used to iterate through all data fields
|
||||||
used to iterate through all data fields which match the previously
|
which match the previously selected field name as set with
|
||||||
selected field name as set with
|
<function>sd_journal_query_unique()</function>. On each invocation the next field data matching the field
|
||||||
<function>sd_journal_query_unique()</function>. On each invocation
|
name is returned. The order of the returned data fields is not defined. It takes three arguments: the
|
||||||
the next field data matching the field name is returned. The order
|
journal object, plus a pair of pointers to pointer/size variables where the data object and its size
|
||||||
of the returned data fields is not defined. It takes three
|
shall be stored. The returned data is in a read-only memory map and is only valid until the next
|
||||||
arguments: the journal context object, plus a pair of pointers to
|
invocation of <function>sd_journal_enumerate_unique()</function>. Note that the data returned will be
|
||||||
pointer/size variables where the data object and its size shall be
|
prefixed with the field name and <literal>=</literal>. Note that this call is subject to the data field
|
||||||
stored in. The returned data is in a read-only memory map and is
|
size threshold as controlled by <function>sd_journal_set_data_threshold()</function> and only the initial
|
||||||
only valid until the next invocation of
|
part of the field up to the threshold is returned. An error is returned for fields which cannot be
|
||||||
<function>sd_journal_enumerate_unique()</function>. Note that the
|
retrieved. See the error list below for details.</para>
|
||||||
data returned will be prefixed with the field name and '='. Note
|
|
||||||
that this call is subject to the data field size threshold as
|
<para><function>sd_journal_enumerate_available_unique()</function> is similar to
|
||||||
controlled by
|
<function>sd_journal_enumerate_unique()</function>, but silently skips any fields which may be valid, but
|
||||||
<function>sd_journal_set_data_threshold()</function>.</para>
|
are too large or not supported by current implementation.</para>
|
||||||
|
|
||||||
<para><function>sd_journal_restart_unique()</function> resets the
|
<para><function>sd_journal_restart_unique()</function> resets the
|
||||||
data enumeration index to the beginning of the list. The next
|
data enumeration index to the beginning of the list. The next
|
||||||
@ -92,11 +98,9 @@
|
|||||||
will return the first field data matching the field name
|
will return the first field data matching the field name
|
||||||
again.</para>
|
again.</para>
|
||||||
|
|
||||||
<para>Note that the
|
<para>Note that the <function>SD_JOURNAL_FOREACH_UNIQUE()</function> macro may be used as a handy wrapper
|
||||||
<function>SD_JOURNAL_FOREACH_UNIQUE()</function> macro may be used
|
around <function>sd_journal_restart_unique()</function> and
|
||||||
as a handy wrapper around
|
<function>sd_journal_enumerate_available_unique()</function>.</para>
|
||||||
<function>sd_journal_restart_unique()</function> and
|
|
||||||
<function>sd_journal_enumerate_unique()</function>.</para>
|
|
||||||
|
|
||||||
<para>Note that these functions currently are not influenced by
|
<para>Note that these functions currently are not influenced by
|
||||||
matches set with <function>sd_journal_add_match()</function> but
|
matches set with <function>sd_journal_add_match()</function> but
|
||||||
@ -111,13 +115,29 @@
|
|||||||
<refsect1>
|
<refsect1>
|
||||||
<title>Return Value</title>
|
<title>Return Value</title>
|
||||||
|
|
||||||
<para><function>sd_journal_query_unique()</function> returns 0 on
|
<para><function>sd_journal_query_unique()</function> returns 0 on success or a negative errno-style error
|
||||||
success or a negative errno-style error code.
|
code. <function>sd_journal_enumerate_unique()</function> and and
|
||||||
<function>sd_journal_enumerate_unique()</function> returns a
|
<function>sd_journal_query_available_unique()</function> return a positive integer if the next field data
|
||||||
positive integer if the next field data has been read, 0 when no
|
has been read, 0 when no more fields remain, or a negative errno-style error code.
|
||||||
more fields are known, or a negative errno-style error code.
|
<function>sd_journal_restart_unique()</function> doesn't return anything.</para>
|
||||||
<function>sd_journal_restart_unique()</function> returns
|
|
||||||
nothing.</para>
|
<refsect2>
|
||||||
|
<title>Errors</title>
|
||||||
|
|
||||||
|
<para>Returned errors may indicate the following problems:</para>
|
||||||
|
|
||||||
|
<variablelist>
|
||||||
|
<xi:include href="sd_journal_get_data.xml" xpointer="EINVAL"/>
|
||||||
|
<xi:include href="sd_journal_get_data.xml" xpointer="ECHILD"/>
|
||||||
|
<xi:include href="sd_journal_get_data.xml" xpointer="EADDRNOTAVAIL"/>
|
||||||
|
<xi:include href="sd_journal_get_data.xml" xpointer="ENOENT"/>
|
||||||
|
<xi:include href="sd_journal_get_data.xml" xpointer="ENOBUFS"/>
|
||||||
|
<xi:include href="sd_journal_get_data.xml" xpointer="E2BIG"/>
|
||||||
|
<xi:include href="sd_journal_get_data.xml" xpointer="EPROTONOSUPPORT"/>
|
||||||
|
<xi:include href="sd_journal_get_data.xml" xpointer="EBADMSG"/>
|
||||||
|
<xi:include href="sd_journal_get_data.xml" xpointer="EIO"/>
|
||||||
|
</variablelist>
|
||||||
|
</refsect2>
|
||||||
</refsect1>
|
</refsect1>
|
||||||
|
|
||||||
<refsect1>
|
<refsect1>
|
||||||
@ -131,10 +151,9 @@
|
|||||||
<refsect1>
|
<refsect1>
|
||||||
<title>Examples</title>
|
<title>Examples</title>
|
||||||
|
|
||||||
<para>Use the <function>SD_JOURNAL_FOREACH_UNIQUE</function> macro
|
<para>Use the <function>SD_JOURNAL_FOREACH_UNIQUE</function> macro to iterate through all values a field
|
||||||
to iterate through all values a field of the journal can take. The
|
of the journal can take (and which can be accessed on the given architecture and are not compressed with
|
||||||
following example lists all unit names referenced in the
|
an unsupported mechanism). The following example lists all unit names referenced in the journal:</para>
|
||||||
journal:</para>
|
|
||||||
|
|
||||||
<programlisting><xi:include href="journal-iterate-unique.c" parse="text" /></programlisting>
|
<programlisting><xi:include href="journal-iterate-unique.c" parse="text" /></programlisting>
|
||||||
</refsect1>
|
</refsect1>
|
||||||
|
@ -16,12 +16,12 @@ struct pkcs11_callback_data {
|
|||||||
X509 *cert;
|
X509 *cert;
|
||||||
};
|
};
|
||||||
|
|
||||||
|
#if HAVE_P11KIT
|
||||||
static void pkcs11_callback_data_release(struct pkcs11_callback_data *data) {
|
static void pkcs11_callback_data_release(struct pkcs11_callback_data *data) {
|
||||||
erase_and_free(data->pin_used);
|
erase_and_free(data->pin_used);
|
||||||
X509_free(data->cert);
|
X509_free(data->cert);
|
||||||
}
|
}
|
||||||
|
|
||||||
#if HAVE_P11KIT
|
|
||||||
static int pkcs11_callback(
|
static int pkcs11_callback(
|
||||||
CK_FUNCTION_LIST *m,
|
CK_FUNCTION_LIST *m,
|
||||||
CK_SESSION_HANDLE session,
|
CK_SESSION_HANDLE session,
|
||||||
|
@ -259,10 +259,10 @@ int decompress_blob_lz4(const void *src, uint64_t src_size,
|
|||||||
|
|
||||||
int decompress_blob_zstd(
|
int decompress_blob_zstd(
|
||||||
const void *src, uint64_t src_size,
|
const void *src, uint64_t src_size,
|
||||||
void **dst, size_t *dst_alloc_size, size_t* dst_size, size_t dst_max) {
|
void **dst, size_t *dst_alloc_size, size_t *dst_size, size_t dst_max) {
|
||||||
|
|
||||||
#if HAVE_ZSTD
|
#if HAVE_ZSTD
|
||||||
size_t space;
|
uint64_t size;
|
||||||
|
|
||||||
assert(src);
|
assert(src);
|
||||||
assert(src_size > 0);
|
assert(src_size > 0);
|
||||||
@ -271,38 +271,40 @@ int decompress_blob_zstd(
|
|||||||
assert(dst_size);
|
assert(dst_size);
|
||||||
assert(*dst_alloc_size == 0 || *dst);
|
assert(*dst_alloc_size == 0 || *dst);
|
||||||
|
|
||||||
if (src_size > SIZE_MAX/2) /* Overflow? */
|
size = ZSTD_getFrameContentSize(src, src_size);
|
||||||
return -ENOBUFS;
|
if (IN_SET(size, ZSTD_CONTENTSIZE_ERROR, ZSTD_CONTENTSIZE_UNKNOWN))
|
||||||
space = src_size * 2;
|
return -EBADMSG;
|
||||||
if (dst_max > 0 && space > dst_max)
|
|
||||||
space = dst_max;
|
|
||||||
|
|
||||||
if (!greedy_realloc(dst, dst_alloc_size, space, 1))
|
if (dst_max > 0 && size > dst_max)
|
||||||
|
size = dst_max;
|
||||||
|
if (size > SIZE_MAX)
|
||||||
|
return -E2BIG;
|
||||||
|
|
||||||
|
if (!(greedy_realloc(dst, dst_alloc_size, MAX(ZSTD_DStreamOutSize(), size), 1)))
|
||||||
return -ENOMEM;
|
return -ENOMEM;
|
||||||
|
|
||||||
for (;;) {
|
_cleanup_(ZSTD_freeDCtxp) ZSTD_DCtx *dctx = ZSTD_createDCtx();
|
||||||
size_t k;
|
if (!dctx)
|
||||||
|
return -ENOMEM;
|
||||||
|
|
||||||
k = ZSTD_decompress(*dst, *dst_alloc_size, src, src_size);
|
ZSTD_inBuffer input = {
|
||||||
if (!ZSTD_isError(k)) {
|
.src = src,
|
||||||
*dst_size = k;
|
.size = src_size,
|
||||||
return 0;
|
};
|
||||||
}
|
ZSTD_outBuffer output = {
|
||||||
if (ZSTD_getErrorCode(k) != ZSTD_error_dstSize_tooSmall)
|
.dst = *dst,
|
||||||
return zstd_ret_to_errno(k);
|
.size = *dst_alloc_size,
|
||||||
|
};
|
||||||
|
|
||||||
if (dst_max > 0 && space >= dst_max) /* Already at max? */
|
size_t k = ZSTD_decompressStream(dctx, &output, &input);
|
||||||
return -ENOBUFS;
|
if (ZSTD_isError(k)) {
|
||||||
if (space > SIZE_MAX / 2) /* Overflow? */
|
log_debug("ZSTD decoder failed: %s", ZSTD_getErrorName(k));
|
||||||
return -ENOBUFS;
|
return zstd_ret_to_errno(k);
|
||||||
|
|
||||||
space *= 2;
|
|
||||||
if (dst_max > 0 && space > dst_max)
|
|
||||||
space = dst_max;
|
|
||||||
|
|
||||||
if (!greedy_realloc(dst, dst_alloc_size, space, 1))
|
|
||||||
return -ENOMEM;
|
|
||||||
}
|
}
|
||||||
|
assert(output.pos >= size);
|
||||||
|
|
||||||
|
*dst_size = size;
|
||||||
|
return 0;
|
||||||
#else
|
#else
|
||||||
return -EPROTONOSUPPORT;
|
return -EPROTONOSUPPORT;
|
||||||
#endif
|
#endif
|
||||||
@ -326,7 +328,7 @@ int decompress_blob(
|
|||||||
src, src_size,
|
src, src_size,
|
||||||
dst, dst_alloc_size, dst_size, dst_max);
|
dst, dst_alloc_size, dst_size, dst_max);
|
||||||
else
|
else
|
||||||
return -EBADMSG;
|
return -EPROTONOSUPPORT;
|
||||||
}
|
}
|
||||||
|
|
||||||
int decompress_startswith_xz(const void *src, uint64_t src_size,
|
int decompress_startswith_xz(const void *src, uint64_t src_size,
|
||||||
@ -456,9 +458,6 @@ int decompress_startswith_zstd(
|
|||||||
const void *prefix, size_t prefix_len,
|
const void *prefix, size_t prefix_len,
|
||||||
uint8_t extra) {
|
uint8_t extra) {
|
||||||
#if HAVE_ZSTD
|
#if HAVE_ZSTD
|
||||||
_cleanup_(ZSTD_freeDCtxp) ZSTD_DCtx *dctx = NULL;
|
|
||||||
size_t k;
|
|
||||||
|
|
||||||
assert(src);
|
assert(src);
|
||||||
assert(src_size > 0);
|
assert(src_size > 0);
|
||||||
assert(buffer);
|
assert(buffer);
|
||||||
@ -466,7 +465,14 @@ int decompress_startswith_zstd(
|
|||||||
assert(prefix);
|
assert(prefix);
|
||||||
assert(*buffer_size == 0 || *buffer);
|
assert(*buffer_size == 0 || *buffer);
|
||||||
|
|
||||||
dctx = ZSTD_createDCtx();
|
uint64_t size = ZSTD_getFrameContentSize(src, src_size);
|
||||||
|
if (IN_SET(size, ZSTD_CONTENTSIZE_ERROR, ZSTD_CONTENTSIZE_UNKNOWN))
|
||||||
|
return -EBADMSG;
|
||||||
|
|
||||||
|
if (size < prefix_len + 1)
|
||||||
|
return 0; /* Decompressed text too short to match the prefix and extra */
|
||||||
|
|
||||||
|
_cleanup_(ZSTD_freeDCtxp) ZSTD_DCtx *dctx = ZSTD_createDCtx();
|
||||||
if (!dctx)
|
if (!dctx)
|
||||||
return -ENOMEM;
|
return -ENOMEM;
|
||||||
|
|
||||||
@ -481,30 +487,17 @@ int decompress_startswith_zstd(
|
|||||||
.dst = *buffer,
|
.dst = *buffer,
|
||||||
.size = *buffer_size,
|
.size = *buffer_size,
|
||||||
};
|
};
|
||||||
|
size_t k;
|
||||||
|
|
||||||
for (;;) {
|
k = ZSTD_decompressStream(dctx, &output, &input);
|
||||||
k = ZSTD_decompressStream(dctx, &output, &input);
|
if (ZSTD_isError(k)) {
|
||||||
if (ZSTD_isError(k)) {
|
log_debug("ZSTD decoder failed: %s", ZSTD_getErrorName(k));
|
||||||
log_debug("ZSTD decoder failed: %s", ZSTD_getErrorName(k));
|
return zstd_ret_to_errno(k);
|
||||||
return zstd_ret_to_errno(k);
|
|
||||||
}
|
|
||||||
|
|
||||||
if (output.pos >= prefix_len + 1)
|
|
||||||
return memcmp(*buffer, prefix, prefix_len) == 0 &&
|
|
||||||
((const uint8_t*) *buffer)[prefix_len] == extra;
|
|
||||||
|
|
||||||
if (input.pos >= input.size)
|
|
||||||
return 0;
|
|
||||||
|
|
||||||
if (*buffer_size > SIZE_MAX/2)
|
|
||||||
return -ENOBUFS;
|
|
||||||
|
|
||||||
if (!(greedy_realloc(buffer, buffer_size, *buffer_size * 2, 1)))
|
|
||||||
return -ENOMEM;
|
|
||||||
|
|
||||||
output.dst = *buffer;
|
|
||||||
output.size = *buffer_size;
|
|
||||||
}
|
}
|
||||||
|
assert(output.pos >= prefix_len + 1);
|
||||||
|
|
||||||
|
return memcmp(*buffer, prefix, prefix_len) == 0 &&
|
||||||
|
((const uint8_t*) *buffer)[prefix_len] == extra;
|
||||||
#else
|
#else
|
||||||
return -EPROTONOSUPPORT;
|
return -EPROTONOSUPPORT;
|
||||||
#endif
|
#endif
|
||||||
|
@ -127,3 +127,12 @@ void journal_print_header(sd_journal *j);
|
|||||||
|
|
||||||
#define JOURNAL_FOREACH_DATA_RETVAL(j, data, l, retval) \
|
#define JOURNAL_FOREACH_DATA_RETVAL(j, data, l, retval) \
|
||||||
for (sd_journal_restart_data(j); ((retval) = sd_journal_enumerate_data((j), &(data), &(l))) > 0; )
|
for (sd_journal_restart_data(j); ((retval) = sd_journal_enumerate_data((j), &(data), &(l))) > 0; )
|
||||||
|
|
||||||
|
/* All errors that we might encounter while extracting a field that are not real errors,
|
||||||
|
* but only mean that the field is too large or we don't support the compression. */
|
||||||
|
static inline bool JOURNAL_ERRNO_IS_UNAVAILABLE_FIELD(int r) {
|
||||||
|
return IN_SET(abs(r),
|
||||||
|
ENOBUFS, /* Field or decompressed field too large */
|
||||||
|
E2BIG, /* Field too large for pointer width */
|
||||||
|
EPROTONOSUPPORT); /* Unsupported compression */
|
||||||
|
}
|
||||||
|
@ -2462,6 +2462,19 @@ _public_ int sd_journal_enumerate_data(sd_journal *j, const void **data, size_t
|
|||||||
return 1;
|
return 1;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
_public_ int sd_journal_enumerate_available_data(sd_journal *j, const void **data, size_t *size) {
|
||||||
|
for (;;) {
|
||||||
|
int r;
|
||||||
|
|
||||||
|
r = sd_journal_enumerate_data(j, data, size);
|
||||||
|
if (r >= 0)
|
||||||
|
return r;
|
||||||
|
if (!JOURNAL_ERRNO_IS_UNAVAILABLE_FIELD(r))
|
||||||
|
return r;
|
||||||
|
j->current_field++; /* Try with the next field */
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
_public_ void sd_journal_restart_data(sd_journal *j) {
|
_public_ void sd_journal_restart_data(sd_journal *j) {
|
||||||
if (!j)
|
if (!j)
|
||||||
return;
|
return;
|
||||||
@ -3002,6 +3015,20 @@ _public_ int sd_journal_enumerate_unique(sd_journal *j, const void **data, size_
|
|||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
_public_ int sd_journal_enumerate_available_unique(sd_journal *j, const void **data, size_t *size) {
|
||||||
|
for (;;) {
|
||||||
|
int r;
|
||||||
|
|
||||||
|
r = sd_journal_enumerate_unique(j, data, size);
|
||||||
|
if (r >= 0)
|
||||||
|
return r;
|
||||||
|
if (!JOURNAL_ERRNO_IS_UNAVAILABLE_FIELD(r))
|
||||||
|
return r;
|
||||||
|
/* Try with the next field. sd_journal_enumerate_unique() modifies state, so on the next try
|
||||||
|
* we will access the next field. */
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
_public_ void sd_journal_restart_unique(sd_journal *j) {
|
_public_ void sd_journal_restart_unique(sd_journal *j) {
|
||||||
if (!j)
|
if (!j)
|
||||||
return;
|
return;
|
||||||
|
@ -232,6 +232,8 @@ static void test_lz4_decompress_partial(void) {
|
|||||||
int r;
|
int r;
|
||||||
_cleanup_free_ char *huge = NULL;
|
_cleanup_free_ char *huge = NULL;
|
||||||
|
|
||||||
|
log_debug("/* %s */", __func__);
|
||||||
|
|
||||||
assert_se(huge = malloc(HUGE_SIZE));
|
assert_se(huge = malloc(HUGE_SIZE));
|
||||||
memcpy(huge, "HUGE=", STRLEN("HUGE="));
|
memcpy(huge, "HUGE=", STRLEN("HUGE="));
|
||||||
memset(&huge[STRLEN("HUGE=")], 'x', HUGE_SIZE - STRLEN("HUGE=") - 1);
|
memset(&huge[STRLEN("HUGE=")], 'x', HUGE_SIZE - STRLEN("HUGE=") - 1);
|
||||||
|
@ -717,4 +717,7 @@ global:
|
|||||||
sd_path_lookup_strv;
|
sd_path_lookup_strv;
|
||||||
|
|
||||||
sd_notify_barrier;
|
sd_notify_barrier;
|
||||||
|
|
||||||
|
sd_journal_enumerate_available_data;
|
||||||
|
sd_journal_enumerate_available_unique;
|
||||||
} LIBSYSTEMD_245;
|
} LIBSYSTEMD_245;
|
||||||
|
@ -105,6 +105,7 @@ int sd_journal_get_data_threshold(sd_journal *j, size_t *sz);
|
|||||||
|
|
||||||
int sd_journal_get_data(sd_journal *j, const char *field, const void **data, size_t *l);
|
int sd_journal_get_data(sd_journal *j, const char *field, const void **data, size_t *l);
|
||||||
int sd_journal_enumerate_data(sd_journal *j, const void **data, size_t *l);
|
int sd_journal_enumerate_data(sd_journal *j, const void **data, size_t *l);
|
||||||
|
int sd_journal_enumerate_available_data(sd_journal *j, const void **data, size_t *l);
|
||||||
void sd_journal_restart_data(sd_journal *j);
|
void sd_journal_restart_data(sd_journal *j);
|
||||||
|
|
||||||
int sd_journal_add_match(sd_journal *j, const void *data, size_t size);
|
int sd_journal_add_match(sd_journal *j, const void *data, size_t size);
|
||||||
@ -128,6 +129,7 @@ int sd_journal_get_usage(sd_journal *j, uint64_t *bytes);
|
|||||||
|
|
||||||
int sd_journal_query_unique(sd_journal *j, const char *field);
|
int sd_journal_query_unique(sd_journal *j, const char *field);
|
||||||
int sd_journal_enumerate_unique(sd_journal *j, const void **data, size_t *l);
|
int sd_journal_enumerate_unique(sd_journal *j, const void **data, size_t *l);
|
||||||
|
int sd_journal_enumerate_available_unique(sd_journal *j, const void **data, size_t *l);
|
||||||
void sd_journal_restart_unique(sd_journal *j);
|
void sd_journal_restart_unique(sd_journal *j);
|
||||||
|
|
||||||
int sd_journal_enumerate_fields(sd_journal *j, const char **field);
|
int sd_journal_enumerate_fields(sd_journal *j, const char **field);
|
||||||
@ -156,13 +158,13 @@ int sd_journal_has_persistent_files(sd_journal *j);
|
|||||||
if (sd_journal_seek_tail(j) < 0) { } \
|
if (sd_journal_seek_tail(j) < 0) { } \
|
||||||
else while (sd_journal_previous(j) > 0)
|
else while (sd_journal_previous(j) > 0)
|
||||||
|
|
||||||
/* Iterate through the data fields of the current journal entry */
|
/* Iterate through all available data fields of the current journal entry */
|
||||||
#define SD_JOURNAL_FOREACH_DATA(j, data, l) \
|
#define SD_JOURNAL_FOREACH_DATA(j, data, l) \
|
||||||
for (sd_journal_restart_data(j); sd_journal_enumerate_data((j), &(data), &(l)) > 0; )
|
for (sd_journal_restart_data(j); sd_journal_enumerate_available_data((j), &(data), &(l)) > 0; )
|
||||||
|
|
||||||
/* Iterate through the all known values of a specific field */
|
/* Iterate through all available values of a specific field */
|
||||||
#define SD_JOURNAL_FOREACH_UNIQUE(j, data, l) \
|
#define SD_JOURNAL_FOREACH_UNIQUE(j, data, l) \
|
||||||
for (sd_journal_restart_unique(j); sd_journal_enumerate_unique((j), &(data), &(l)) > 0; )
|
for (sd_journal_restart_unique(j); sd_journal_enumerate_available_unique((j), &(data), &(l)) > 0; )
|
||||||
|
|
||||||
/* Iterate through all known field names */
|
/* Iterate through all known field names */
|
||||||
#define SD_JOURNAL_FOREACH_FIELD(j, field) \
|
#define SD_JOURNAL_FOREACH_FIELD(j, field) \
|
||||||
|
Loading…
Reference in New Issue
Block a user