smi_config.html-lang=de.htm

libsmi的使用手册及网站

amount of memory in case of applications that do not need this
information.</p>
<p>The <b>smiSetSeverity()</b> function allows to set the severity
of all error that have name prefixed by <b>pattern</b> to the value
<b>severity</b>.</p>
<p>The <b>smiLoadModule()</b> function specifies an additional MIB
<i>module</i> that the application claims to know or an additional
file path to read. Only after a module is made known through this
function, iterating retrieval functions and retrieval functions
without fully qualified identifiers will return results from this
module. <b>smiLoadModule()</b> returns the name of the loaded
module, of NULL if it could not be loaded.</p>
<p>The <b>smiIsLoaded()</b> function returns a positive value if
the module named <i>module</i> is already loaded, or zero
otherwise.</p>
<p>The <b>smiGetPath()</b> and <b>smiSetPath()</b> functions allow
to fetch, modify, and set the path that is used to search MIB
modules. <b>smiGetPath()</b> returns a copy of the current search
path in the form "DIR1:DIR2:...", or NULL if no path is set. The
application should free this string if it is no longer needed.
<b>smiSetPath()</b> sets the search path to <i>path</i>.</p>
<p>The <b>smiReadConfig()</b> function reads the configuration file
<i>filename</i>. All global statements in the configuration file
and those statements with a tag (a &#8216;&#8216;tag:
&#8217;&#8217; prefix) that matches the <b>tag</b> argument, if
present, are executed.</p>
<p>The <b>smiSetErrorHandler()</b> function allows to set a
callback function that is called by the MIB parsers deviating from
the builtin default error handler, that prints error messages to
stderr. The error handler has to comply with the
<b>SmiErrorHandler</b> function type. The <b>path</b>, <b>line</b>,
<b>severity</b>, <b>msg</b>, and <b>tag</b> arguements carry the
module&#8217;s pathname, the line number within the module, the
error severity level, a textual error message, and a short error
name of the error being reported.</p>
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<a name="MODULE LOCATIONS"></a><h2>MODULE LOCATIONS</h2>
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<p>The SMI library may retrieve MIB modules from different kinds of
resources. Currently, SMIv1/v2 and SMIng module files are
supported. If in an <b>smiLoadModule()</b> function call a module
is specified by a path name (identified by containing at least one
dot or slash character), this is assumed to be the exact file to
read. Otherwise, if a module is identified by its plain module
name, the correspondant file (either SMIv1/2 or SMIng) is searched
along a path. This path is initialized with
/usr/local/share/mibs/ietf:/usr/local/share/mibs/iana:
/usr/local/share/mibs/irtf:/usr/local/share/mibs/site:
/usr/local/share/mibs/tubs:/usr/local/share/pibs/ietf:
/usr/local/share/pibs/site:/usr/local/share/pibs/tubs. Afterwards
the optional global and user configuration files are parsed for
&#8216;path&#8217; commands, and finally the optional
<b>SMIPATH</b> environment variable is evaluated. The
&#8216;path&#8217; command argument and the environment variable
either start with a path separator character (&#8216;:&#8217; on
UNIX-like systems, &#8216;;&#8217; on MS-Windows systems) to append
to the path, or end with a path separator character to prepend to
the path, or otherwise completely replace the path. The path can
also be controlled by the <b>smiGetPath()</b> and
<b>smiSetPath()</b> functions (see above).</p>
<p>When files are searched by a given module name, they might have
no extension or one of the extensions &#8216;.my&#8217;,
&#8216;.smiv2&#8217;, &#8216;.sming&#8217;, &#8216;.mib&#8217;, or
&#8216;.txt&#8217;. However, the MIB module language is identified
by the file&#8217;s content, not by its file name extension.</p>
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<a name="CONFIGURATION FILES"></a><h2>CONFIGURATION FILES</h2>
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<p>SMI library configuration files read at initialization and on
demand by <b>smiReadConfig()</b> have a simple line oriented
syntax. Empty lines and those starting with &#8216;#&#8217; are
ignored. Other lines start with an optional tag (prepended by a
colon), followed by a command and options dependent on the command.
Tags are used to limit the scope of a command to those applications
that are using this tag.</p>
<p>The <b>load</b> command is used to preload a given MIB module.
If multiple modules shall be preloaded, multiple <b>load</b>
commands must be used.</p>
<p>The <b>path</b> command allows to prepend or append components
to the MIB module search path or to modify it completely (see also
MODULE LOCATIONS above).</p>
<p>The <b>cache</b> command allows to add an additional directory
for MIB module lookup as a last resort. The first argument
specifies the directory and the rest of the line starting from the
second argument specifies the caching method, which is invoked with
the MIB module name appended if the module is found neither in one
of the regular directories nor in the cache directory
beforehand.</p>
<p>The <b>level</b> command sets the error level.</p>
<p>The <b>hide</b> command allows to tune the list of errors that
are reported. It raises all errors with names prefixed by the given
pattern to severity level 9. [Currently, there is no way to list
the error names. RTFS: error.c.]</p>
<p>Example configuration:</p>
<pre>
  #
  # $HOME/.smirc
  #

 # add a private directory
  path :/usr/home/strauss/lib/mibs

 # don&#8217;t show any errors by default
  level 0

 # preload some basic modules
  load SNMPv2-SMI
  load SNMPv2-TC
  load SNMPv2-CONF

 # want to make smilint shout
  smilint: level 8

 # but please don&#8217;t claim about
  # any names longer than 32 chars
  smilint: hide namelength-32

 tcpdump: load DISMAN-SCRIPT-MIB

 smiquery: load IF-MIB
  smiquery: load DISMAN-SCRIPT-MIB
</pre>
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<a name="FILES"></a><h2>FILES</h2>
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${prefix}/etc/smi.conf    global configuration file
$HOME/.smirc               user configuration file
${prefix}/include/smi.h   SMI library header file
/usr/local/share/mibs/     SMI module repository directory
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<a name="SEE ALSO"></a><h2>SEE ALSO</h2>
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<td width="89%"><p><b>libsmi</b>(3), <b>smi.h</b></p></td>
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<a name="AUTHOR"></a><h2>AUTHOR</h2>
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<td width="89%"><p>(C) 1999-2001 Frank Strauss, TU Braunschweig, Germany
&lt;[e-mail]&gt;</p></td>
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