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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<h2><span class="refentrytitle"><a name="libnm-util-nm-utils.top_of_page"></a>nm-utils</span></h2>
<p>nm-utils — Utility functions</p>
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<div class="refsynopsisdiv">
<a name="libnm-util-nm-utils.synopsis"></a><h2>Synopsis</h2>
<a name="NMUtilsSecurityType"></a><pre class="synopsis">
#include &lt;nm-utils.h&gt;

enum                <a class="link" href="libnm-util-nm-utils.html#NMUtilsSecurityType-enum" title="enum NMUtilsSecurityType">NMUtilsSecurityType</a>;
#define             <a class="link" href="libnm-util-nm-utils.html#NM-UTILS-HWADDR-LEN-MAX:CAPS" title="NM_UTILS_HWADDR_LEN_MAX">NM_UTILS_HWADDR_LEN_MAX</a>
<span class="returnvalue">void</span>                <a class="link" href="libnm-util-nm-utils.html#nm-utils-deinit" title="nm_utils_deinit ()">nm_utils_deinit</a>                     (<em class="parameter"><code><span class="type">void</span></code></em>);
const <span class="returnvalue">char</span> *        <a class="link" href="libnm-util-nm-utils.html#nm-utils-escape-ssid" title="nm_utils_escape_ssid ()">nm_utils_escape_ssid</a>                (<em class="parameter"><code>const <span class="type">guint8</span> *ssid</code></em>,
                                                         <em class="parameter"><code><span class="type">guint32</span> len</code></em>);
<span class="returnvalue">GHashTable</span> *        <a class="link" href="libnm-util-nm-utils.html#nm-utils-gvalue-hash-dup" title="nm_utils_gvalue_hash_dup ()">nm_utils_gvalue_hash_dup</a>            (<em class="parameter"><code><span class="type">GHashTable</span> *hash</code></em>);
<span class="returnvalue">GByteArray</span> *        <a class="link" href="libnm-util-nm-utils.html#nm-utils-hwaddr-atoba" title="nm_utils_hwaddr_atoba ()">nm_utils_hwaddr_atoba</a>               (<em class="parameter"><code>const <span class="type">char</span> *asc</code></em>,
                                                         <em class="parameter"><code><span class="type">int</span> type</code></em>);
<span class="returnvalue">guint8</span> *            <a class="link" href="libnm-util-nm-utils.html#nm-utils-hwaddr-aton" title="nm_utils_hwaddr_aton ()">nm_utils_hwaddr_aton</a>                (<em class="parameter"><code>const <span class="type">char</span> *asc</code></em>,
                                                         <em class="parameter"><code><span class="type">int</span> type</code></em>,
                                                         <em class="parameter"><code><span class="type">gpointer</span> buffer</code></em>);
<span class="returnvalue">int</span>                 <a class="link" href="libnm-util-nm-utils.html#nm-utils-hwaddr-len" title="nm_utils_hwaddr_len ()">nm_utils_hwaddr_len</a>                 (<em class="parameter"><code><span class="type">int</span> type</code></em>);
<span class="returnvalue">char</span> *              <a class="link" href="libnm-util-nm-utils.html#nm-utils-hwaddr-ntoa" title="nm_utils_hwaddr_ntoa ()">nm_utils_hwaddr_ntoa</a>                (<em class="parameter"><code><span class="type">gconstpointer</span> addr</code></em>,
                                                         <em class="parameter"><code><span class="type">int</span> type</code></em>);
<span class="returnvalue">int</span>                 <a class="link" href="libnm-util-nm-utils.html#nm-utils-hwaddr-type" title="nm_utils_hwaddr_type ()">nm_utils_hwaddr_type</a>                (<em class="parameter"><code><span class="type">int</span> len</code></em>);
<span class="returnvalue">gboolean</span>            <a class="link" href="libnm-util-nm-utils.html#nm-utils-init" title="nm_utils_init ()">nm_utils_init</a>                       (<em class="parameter"><code><span class="type">GError</span> **error</code></em>);
<span class="returnvalue">GSList</span> *            <a class="link" href="libnm-util-nm-utils.html#nm-utils-ip4-addresses-from-gvalue" title="nm_utils_ip4_addresses_from_gvalue ()">nm_utils_ip4_addresses_from_gvalue</a>  (<em class="parameter"><code>const <span class="type">GValue</span> *value</code></em>);
<span class="returnvalue">void</span>                <a class="link" href="libnm-util-nm-utils.html#nm-utils-ip4-addresses-to-gvalue" title="nm_utils_ip4_addresses_to_gvalue ()">nm_utils_ip4_addresses_to_gvalue</a>    (<em class="parameter"><code><span class="type">GSList</span> *list</code></em>,
                                                         <em class="parameter"><code><span class="type">GValue</span> *value</code></em>);
<span class="returnvalue">guint32</span>             <a class="link" href="libnm-util-nm-utils.html#nm-utils-ip4-get-default-prefix" title="nm_utils_ip4_get_default_prefix ()">nm_utils_ip4_get_default_prefix</a>     (<em class="parameter"><code><span class="type">guint32</span> ip</code></em>);
<span class="returnvalue">guint32</span>             <a class="link" href="libnm-util-nm-utils.html#nm-utils-ip4-netmask-to-prefix" title="nm_utils_ip4_netmask_to_prefix ()">nm_utils_ip4_netmask_to_prefix</a>      (<em class="parameter"><code><span class="type">guint32</span> netmask</code></em>);
<span class="returnvalue">guint32</span>             <a class="link" href="libnm-util-nm-utils.html#nm-utils-ip4-prefix-to-netmask" title="nm_utils_ip4_prefix_to_netmask ()">nm_utils_ip4_prefix_to_netmask</a>      (<em class="parameter"><code><span class="type">guint32</span> prefix</code></em>);
<span class="returnvalue">GSList</span> *            <a class="link" href="libnm-util-nm-utils.html#nm-utils-ip4-routes-from-gvalue" title="nm_utils_ip4_routes_from_gvalue ()">nm_utils_ip4_routes_from_gvalue</a>     (<em class="parameter"><code>const <span class="type">GValue</span> *value</code></em>);
<span class="returnvalue">void</span>                <a class="link" href="libnm-util-nm-utils.html#nm-utils-ip4-routes-to-gvalue" title="nm_utils_ip4_routes_to_gvalue ()">nm_utils_ip4_routes_to_gvalue</a>       (<em class="parameter"><code><span class="type">GSList</span> *list</code></em>,
                                                         <em class="parameter"><code><span class="type">GValue</span> *value</code></em>);
<span class="returnvalue">GSList</span> *            <a class="link" href="libnm-util-nm-utils.html#nm-utils-ip6-addresses-from-gvalue" title="nm_utils_ip6_addresses_from_gvalue ()">nm_utils_ip6_addresses_from_gvalue</a>  (<em class="parameter"><code>const <span class="type">GValue</span> *value</code></em>);
<span class="returnvalue">void</span>                <a class="link" href="libnm-util-nm-utils.html#nm-utils-ip6-addresses-to-gvalue" title="nm_utils_ip6_addresses_to_gvalue ()">nm_utils_ip6_addresses_to_gvalue</a>    (<em class="parameter"><code><span class="type">GSList</span> *list</code></em>,
                                                         <em class="parameter"><code><span class="type">GValue</span> *value</code></em>);
<span class="returnvalue">GSList</span> *            <a class="link" href="libnm-util-nm-utils.html#nm-utils-ip6-dns-from-gvalue" title="nm_utils_ip6_dns_from_gvalue ()">nm_utils_ip6_dns_from_gvalue</a>        (<em class="parameter"><code>const <span class="type">GValue</span> *value</code></em>);
<span class="returnvalue">void</span>                <a class="link" href="libnm-util-nm-utils.html#nm-utils-ip6-dns-to-gvalue" title="nm_utils_ip6_dns_to_gvalue ()">nm_utils_ip6_dns_to_gvalue</a>          (<em class="parameter"><code><span class="type">GSList</span> *list</code></em>,
                                                         <em class="parameter"><code><span class="type">GValue</span> *value</code></em>);
<span class="returnvalue">GSList</span> *            <a class="link" href="libnm-util-nm-utils.html#nm-utils-ip6-routes-from-gvalue" title="nm_utils_ip6_routes_from_gvalue ()">nm_utils_ip6_routes_from_gvalue</a>     (<em class="parameter"><code>const <span class="type">GValue</span> *value</code></em>);
<span class="returnvalue">void</span>                <a class="link" href="libnm-util-nm-utils.html#nm-utils-ip6-routes-to-gvalue" title="nm_utils_ip6_routes_to_gvalue ()">nm_utils_ip6_routes_to_gvalue</a>       (<em class="parameter"><code><span class="type">GSList</span> *list</code></em>,
                                                         <em class="parameter"><code><span class="type">GValue</span> *value</code></em>);
<span class="returnvalue">gboolean</span>            <a class="link" href="libnm-util-nm-utils.html#nm-utils-is-empty-ssid" title="nm_utils_is_empty_ssid ()">nm_utils_is_empty_ssid</a>              (<em class="parameter"><code>const <span class="type">guint8</span> *ssid</code></em>,
                                                         <em class="parameter"><code><span class="type">int</span> len</code></em>);
<span class="returnvalue">GByteArray</span> *        <a class="link" href="libnm-util-nm-utils.html#nm-utils-rsa-key-encrypt" title="nm_utils_rsa_key_encrypt ()">nm_utils_rsa_key_encrypt</a>            (<em class="parameter"><code>const <span class="type">GByteArray</span> *data</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *in_password</code></em>,
                                                         <em class="parameter"><code><span class="type">char</span> **out_password</code></em>,
                                                         <em class="parameter"><code><span class="type">GError</span> **error</code></em>);
<span class="returnvalue">gboolean</span>            <a class="link" href="libnm-util-nm-utils.html#nm-utils-same-ssid" title="nm_utils_same_ssid ()">nm_utils_same_ssid</a>                  (<em class="parameter"><code>const <span class="type">GByteArray</span> *ssid1</code></em>,
                                                         <em class="parameter"><code>const <span class="type">GByteArray</span> *ssid2</code></em>,
                                                         <em class="parameter"><code><span class="type">gboolean</span> ignore_trailing_null</code></em>);
<span class="returnvalue">gboolean</span>            <a class="link" href="libnm-util-nm-utils.html#nm-utils-security-valid" title="nm_utils_security_valid ()">nm_utils_security_valid</a>             (<em class="parameter"><code><a class="link" href="libnm-util-nm-utils.html#NMUtilsSecurityType"><span class="type">NMUtilsSecurityType</span></a> type</code></em>,
                                                         <em class="parameter"><code><span class="type">NMDeviceWifiCapabilities</span> wifi_caps</code></em>,
                                                         <em class="parameter"><code><span class="type">gboolean</span> have_ap</code></em>,
                                                         <em class="parameter"><code><span class="type">gboolean</span> adhoc</code></em>,
                                                         <em class="parameter"><code><span class="type">NM80211ApFlags</span> ap_flags</code></em>,
                                                         <em class="parameter"><code><span class="type">NM80211ApSecurityFlags</span> ap_wpa</code></em>,
                                                         <em class="parameter"><code><span class="type">NM80211ApSecurityFlags</span> ap_rsn</code></em>);
<span class="returnvalue">void</span>                <a class="link" href="libnm-util-nm-utils.html#nm-utils-slist-free" title="nm_utils_slist_free ()">nm_utils_slist_free</a>                 (<em class="parameter"><code><span class="type">GSList</span> *list</code></em>,
                                                         <em class="parameter"><code><span class="type">GDestroyNotify</span> elem_destroy_fn</code></em>);
<span class="returnvalue">char</span> *              <a class="link" href="libnm-util-nm-utils.html#nm-utils-ssid-to-utf8" title="nm_utils_ssid_to_utf8 ()">nm_utils_ssid_to_utf8</a>               (<em class="parameter"><code>const <span class="type">GByteArray</span> *ssid</code></em>);
<span class="returnvalue">char</span> *              <a class="link" href="libnm-util-nm-utils.html#nm-utils-uuid-generate" title="nm_utils_uuid_generate ()">nm_utils_uuid_generate</a>              (<em class="parameter"><code><span class="type">void</span></code></em>);
<span class="returnvalue">char</span> *              <a class="link" href="libnm-util-nm-utils.html#nm-utils-uuid-generate-from-string" title="nm_utils_uuid_generate_from_string ()">nm_utils_uuid_generate_from_string</a>  (<em class="parameter"><code>const <span class="type">char</span> *s</code></em>);
<span class="returnvalue">guint32</span>             <a class="link" href="libnm-util-nm-utils.html#nm-utils-wifi-channel-to-freq" title="nm_utils_wifi_channel_to_freq ()">nm_utils_wifi_channel_to_freq</a>       (<em class="parameter"><code><span class="type">guint32</span> channel</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *band</code></em>);
<span class="returnvalue">guint32</span>             <a class="link" href="libnm-util-nm-utils.html#nm-utils-wifi-find-next-channel" title="nm_utils_wifi_find_next_channel ()">nm_utils_wifi_find_next_channel</a>     (<em class="parameter"><code><span class="type">guint32</span> channel</code></em>,
                                                         <em class="parameter"><code><span class="type">int</span> direction</code></em>,
                                                         <em class="parameter"><code><span class="type">char</span> *band</code></em>);
<span class="returnvalue">guint32</span>             <a class="link" href="libnm-util-nm-utils.html#nm-utils-wifi-freq-to-channel" title="nm_utils_wifi_freq_to_channel ()">nm_utils_wifi_freq_to_channel</a>       (<em class="parameter"><code><span class="type">guint32</span> freq</code></em>);
<span class="returnvalue">gboolean</span>            <a class="link" href="libnm-util-nm-utils.html#nm-utils-wifi-is-channel-valid" title="nm_utils_wifi_is_channel_valid ()">nm_utils_wifi_is_channel_valid</a>      (<em class="parameter"><code><span class="type">guint32</span> channel</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *band</code></em>);
</pre>
</div>
<div class="refsect1">
<a name="libnm-util-nm-utils.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="synopsis">
  GEnum
   +----NMUtilsSecurityType
</pre>
</div>
<div class="refsect1">
<a name="libnm-util-nm-utils.description"></a><h2>Description</h2>
<p>
A collection of utility functions for working SSIDs, IP addresses, WiFi
access points and devices, among other things.
</p>
</div>
<div class="refsect1">
<a name="libnm-util-nm-utils.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="NMUtilsSecurityType-enum"></a><h3>enum NMUtilsSecurityType</h3>
<pre class="programlisting">typedef enum {
	NMU_SEC_INVALID = 0,
	NMU_SEC_NONE,
	NMU_SEC_STATIC_WEP,
	NMU_SEC_LEAP,
	NMU_SEC_DYNAMIC_WEP,
	NMU_SEC_WPA_PSK,
	NMU_SEC_WPA_ENTERPRISE,
	NMU_SEC_WPA2_PSK,
	NMU_SEC_WPA2_ENTERPRISE
} NMUtilsSecurityType;
</pre>
<p>
Describes generic security mechanisms that 802.11 access points may offer.
Used with <a class="link" href="libnm-util-nm-utils.html#nm-utils-security-valid" title="nm_utils_security_valid ()"><code class="function">nm_utils_security_valid()</code></a> for checking whether a given access
point is compatible with a network device.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><a name="NMU-SEC-INVALID:CAPS"></a><span class="term"><code class="literal">NMU_SEC_INVALID</code></span></p></td>
<td>unknown or invalid security, placeholder and not used
</td>
</tr>
<tr>
<td><p><a name="NMU-SEC-NONE:CAPS"></a><span class="term"><code class="literal">NMU_SEC_NONE</code></span></p></td>
<td>unencrypted and open
</td>
</tr>
<tr>
<td><p><a name="NMU-SEC-STATIC-WEP:CAPS"></a><span class="term"><code class="literal">NMU_SEC_STATIC_WEP</code></span></p></td>
<td>static WEP keys are used for encryption
</td>
</tr>
<tr>
<td><p><a name="NMU-SEC-LEAP:CAPS"></a><span class="term"><code class="literal">NMU_SEC_LEAP</code></span></p></td>
<td>Cisco LEAP is used for authentication and for generating the
dynamic WEP keys automatically
</td>
</tr>
<tr>
<td><p><a name="NMU-SEC-DYNAMIC-WEP:CAPS"></a><span class="term"><code class="literal">NMU_SEC_DYNAMIC_WEP</code></span></p></td>
<td>standard 802.1x is used for authentication and
generating the dynamic WEP keys automatically
</td>
</tr>
<tr>
<td><p><a name="NMU-SEC-WPA-PSK:CAPS"></a><span class="term"><code class="literal">NMU_SEC_WPA_PSK</code></span></p></td>
<td>WPA1 is used with Pre-Shared Keys (PSK)
</td>
</tr>
<tr>
<td><p><a name="NMU-SEC-WPA-ENTERPRISE:CAPS"></a><span class="term"><code class="literal">NMU_SEC_WPA_ENTERPRISE</code></span></p></td>
<td>WPA1 is used with 802.1x authentication
</td>
</tr>
<tr>
<td><p><a name="NMU-SEC-WPA2-PSK:CAPS"></a><span class="term"><code class="literal">NMU_SEC_WPA2_PSK</code></span></p></td>
<td>WPA2/RSN is used with Pre-Shared Keys (PSK)
</td>
</tr>
<tr>
<td><p><a name="NMU-SEC-WPA2-ENTERPRISE:CAPS"></a><span class="term"><code class="literal">NMU_SEC_WPA2_ENTERPRISE</code></span></p></td>
<td>WPA2 is used with 802.1x authentication
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="NM-UTILS-HWADDR-LEN-MAX:CAPS"></a><h3>NM_UTILS_HWADDR_LEN_MAX</h3>
<pre class="programlisting">#define NM_UTILS_HWADDR_LEN_MAX 20 /* INFINIBAND_ALEN */
</pre>
<p>
The maximum length of a hardware address of a type known by
<a class="link" href="libnm-util-nm-utils.html#nm-utils-hwaddr-len" title="nm_utils_hwaddr_len ()"><code class="function">nm_utils_hwaddr_len()</code></a> or <a class="link" href="libnm-util-nm-utils.html#nm-utils-hwaddr-aton" title="nm_utils_hwaddr_aton ()"><code class="function">nm_utils_hwaddr_aton()</code></a>. This can be used
as the size of the buffer passed to <a class="link" href="libnm-util-nm-utils.html#nm-utils-hwaddr-aton" title="nm_utils_hwaddr_aton ()"><code class="function">nm_utils_hwaddr_aton()</code></a>.
</p>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-deinit"></a><h3>nm_utils_deinit ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                nm_utils_deinit                     (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>
Frees all resources used internally by libnm-util.  This function is called
from an <code class="function">atexit()</code> handler, set up by <a class="link" href="libnm-util-nm-utils.html#nm-utils-init" title="nm_utils_init ()"><code class="function">nm_utils_init()</code></a>, but is safe to be called
more than once.  Subsequent calls have no effect until <a class="link" href="libnm-util-nm-utils.html#nm-utils-init" title="nm_utils_init ()"><code class="function">nm_utils_init()</code></a> is
called again.
</p>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-escape-ssid"></a><h3>nm_utils_escape_ssid ()</h3>
<pre class="programlisting">const <span class="returnvalue">char</span> *        nm_utils_escape_ssid                (<em class="parameter"><code>const <span class="type">guint8</span> *ssid</code></em>,
                                                         <em class="parameter"><code><span class="type">guint32</span> len</code></em>);</pre>
<p>
This function does a quick printable character conversion of the SSID, simply
replacing embedded NULLs and non-printable characters with the hexadecimal
representation of that character.  Intended for debugging only, should not
be used for display of SSIDs.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>ssid</code></em> :</span></p></td>
<td>pointer to a buffer containing the SSID data</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>len</code></em> :</span></p></td>
<td>length of the SSID data in <em class="parameter"><code>ssid</code></em>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>pointer to the escaped SSID, which uses an internal static buffer
and will be overwritten by subsequent calls to this function</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-gvalue-hash-dup"></a><h3>nm_utils_gvalue_hash_dup ()</h3>
<pre class="programlisting"><span class="returnvalue">GHashTable</span> *        nm_utils_gvalue_hash_dup            (<em class="parameter"><code><span class="type">GHashTable</span> *hash</code></em>);</pre>
<p>
Utility function to duplicate a hash table of GValues.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>hash</code></em> :</span></p></td>
<td>a <span class="type">GHashTable</span> mapping string:GValue</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a newly allocated duplicated <span class="type">GHashTable</span>, caller must free the
returned hash with <code class="function">g_hash_table_unref()</code> or <code class="function">g_hash_table_destroy()</code>. <span class="annotation">[<acronym title="Free data container after the code is done."><span class="acronym">transfer container</span></acronym>][<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> utf8 GObject.Value]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-hwaddr-atoba"></a><h3>nm_utils_hwaddr_atoba ()</h3>
<pre class="programlisting"><span class="returnvalue">GByteArray</span> *        nm_utils_hwaddr_atoba               (<em class="parameter"><code>const <span class="type">char</span> *asc</code></em>,
                                                         <em class="parameter"><code><span class="type">int</span> type</code></em>);</pre>
<p>
Parses <em class="parameter"><code>asc</code></em> and converts it to binary form in a <span class="type">GByteArray</span>. See
<a class="link" href="libnm-util-nm-utils.html#nm-utils-hwaddr-aton" title="nm_utils_hwaddr_aton ()"><code class="function">nm_utils_hwaddr_aton()</code></a> if you don't want a <span class="type">GByteArray</span>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>asc</code></em> :</span></p></td>
<td>the ASCII representation of a hardware address</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>type</code></em> :</span></p></td>
<td>the type of address; either <code class="literal">ARPHRD_ETHER</code> or <code class="literal">ARPHRD_INFINIBAND</code>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a new <span class="type">GByteArray</span>, or <code class="literal">NULL</code> if <em class="parameter"><code>asc</code></em> couldn't
be parsed. <span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-hwaddr-aton"></a><h3>nm_utils_hwaddr_aton ()</h3>
<pre class="programlisting"><span class="returnvalue">guint8</span> *            nm_utils_hwaddr_aton                (<em class="parameter"><code>const <span class="type">char</span> *asc</code></em>,
                                                         <em class="parameter"><code><span class="type">int</span> type</code></em>,
                                                         <em class="parameter"><code><span class="type">gpointer</span> buffer</code></em>);</pre>
<p>
Parses <em class="parameter"><code>asc</code></em> and converts it to binary form in <em class="parameter"><code>buffer</code></em>. See
<a class="link" href="libnm-util-nm-utils.html#nm-utils-hwaddr-atoba" title="nm_utils_hwaddr_atoba ()"><code class="function">nm_utils_hwaddr_atoba()</code></a> if you'd rather have the result in a
<span class="type">GByteArray</span>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>asc</code></em> :</span></p></td>
<td>the ASCII representation of a hardware address</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>type</code></em> :</span></p></td>
<td>the type of address; either <code class="literal">ARPHRD_ETHER</code> or <code class="literal">ARPHRD_INFINIBAND</code>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
<td>buffer to store the result into</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<em class="parameter"><code>buffer</code></em>, or <code class="literal">NULL</code> if <em class="parameter"><code>asc</code></em> couldn't be parsed</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-hwaddr-len"></a><h3>nm_utils_hwaddr_len ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>                 nm_utils_hwaddr_len                 (<em class="parameter"><code><span class="type">int</span> type</code></em>);</pre>
<p>
Returns the length in octets of a hardware address of type <em class="parameter"><code>type</code></em>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>type</code></em> :</span></p></td>
<td>the type of address; either <code class="literal">ARPHRD_ETHER</code> or <code class="literal">ARPHRD_INFINIBAND</code>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the length</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-hwaddr-ntoa"></a><h3>nm_utils_hwaddr_ntoa ()</h3>
<pre class="programlisting"><span class="returnvalue">char</span> *              nm_utils_hwaddr_ntoa                (<em class="parameter"><code><span class="type">gconstpointer</span> addr</code></em>,
                                                         <em class="parameter"><code><span class="type">int</span> type</code></em>);</pre>
<p>
Converts <em class="parameter"><code>addr</code></em> to textual form.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>addr</code></em> :</span></p></td>
<td>a binary hardware address</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>type</code></em> :</span></p></td>
<td>the type of address; either <code class="literal">ARPHRD_ETHER</code> or <code class="literal">ARPHRD_INFINIBAND</code>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the textual form of <em class="parameter"><code>addr</code></em>. <span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-hwaddr-type"></a><h3>nm_utils_hwaddr_type ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>                 nm_utils_hwaddr_type                (<em class="parameter"><code><span class="type">int</span> len</code></em>);</pre>
<p>
Returns the type (either <code class="literal">ARPHRD_ETHER</code> or <code class="literal">ARPHRD_INFINIBAND</code>) of the raw
address given its length.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>len</code></em> :</span></p></td>
<td>the length of hardware address in bytes</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the type, either <code class="literal">ARPHRD_ETHER</code> or <code class="literal">ARPHRD_INFINIBAND</code>, or -1 if
the address length was not recognized</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-init"></a><h3>nm_utils_init ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>            nm_utils_init                       (<em class="parameter"><code><span class="type">GError</span> **error</code></em>);</pre>
<p>
Initializes libnm-util; should be called when starting and program that
uses libnm-util.  Sets up an <code class="function">atexit()</code> handler to ensure de-initialization
is performed, but calling <a class="link" href="libnm-util-nm-utils.html#nm-utils-deinit" title="nm_utils_deinit ()"><code class="function">nm_utils_deinit()</code></a> to explicitly deinitialize
libnm-util can also be done.  This function can be called more than once.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>error</code></em> :</span></p></td>
<td>location to store error, or <code class="literal">NULL</code>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>TRUE if the initialization was successful, FALSE on failure.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-ip4-addresses-from-gvalue"></a><h3>nm_utils_ip4_addresses_from_gvalue ()</h3>
<pre class="programlisting"><span class="returnvalue">GSList</span> *            nm_utils_ip4_addresses_from_gvalue  (<em class="parameter"><code>const <span class="type">GValue</span> *value</code></em>);</pre>
<p>
Utility function to convert a <span class="type">GPtrArray</span> of <span class="type">GArrays</span> of guint32s representing
a list of NetworkManager IPv4 addresses (which is a tuple of address, gateway,
and prefix) into a GSList of <a class="link" href="NMSettingIP4Config.html#NMIP4Address"><span class="type">NMIP4Address</span></a> objects.  The specific format of
this serialization is not guaranteed to be stable and the <span class="type">GArray</span> may be
extended in the future.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>gvalue containing a GPtrArray of GArrays of guint32s</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a newly allocated <span class="type">GSList</span> of <a class="link" href="NMSettingIP4Config.html#NMIP4Address"><span class="type">NMIP4Address</span></a> objects. <span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>][<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> NetworkManager.IP4Address]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-ip4-addresses-to-gvalue"></a><h3>nm_utils_ip4_addresses_to_gvalue ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                nm_utils_ip4_addresses_to_gvalue    (<em class="parameter"><code><span class="type">GSList</span> *list</code></em>,
                                                         <em class="parameter"><code><span class="type">GValue</span> *value</code></em>);</pre>
<p>
Utility function to convert a <span class="type">GSList</span> of <a class="link" href="NMSettingIP4Config.html#NMIP4Address"><span class="type">NMIP4Address</span></a> objects into a
GPtrArray of GArrays of guint32s representing a list of NetworkManager IPv4
addresses (which is a tuple of address, gateway, and prefix).   The specific
format of this serialization is not guaranteed to be stable and may be
extended in the future.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>list</code></em> :</span></p></td>
<td>a list of <a class="link" href="NMSettingIP4Config.html#NMIP4Address"><span class="type">NMIP4Address</span></a> objects. <span class="annotation">[<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> NMIP4Address]</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>a pointer to a <span class="type">GValue</span> into which to place the converted addresses,
which should be unset by the caller (when no longer needed) with
<code class="function">g_value_unset()</code>.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-ip4-get-default-prefix"></a><h3>nm_utils_ip4_get_default_prefix ()</h3>
<pre class="programlisting"><span class="returnvalue">guint32</span>             nm_utils_ip4_get_default_prefix     (<em class="parameter"><code><span class="type">guint32</span> ip</code></em>);</pre>
<p>
When the Internet was originally set up, various ranges of IP addresses were
segmented into three network classes: A, B, and C.  This function will return
a prefix that is associated with the IP address specified defining where it
falls in the predefined classes.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>ip</code></em> :</span></p></td>
<td>an IPv4 address (in network byte order)</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the default class prefix for the given IP</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-ip4-netmask-to-prefix"></a><h3>nm_utils_ip4_netmask_to_prefix ()</h3>
<pre class="programlisting"><span class="returnvalue">guint32</span>             nm_utils_ip4_netmask_to_prefix      (<em class="parameter"><code><span class="type">guint32</span> netmask</code></em>);</pre>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>netmask</code></em> :</span></p></td>
<td>an IPv4 netmask in network byte order</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the CIDR prefix represented by the netmask</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-ip4-prefix-to-netmask"></a><h3>nm_utils_ip4_prefix_to_netmask ()</h3>
<pre class="programlisting"><span class="returnvalue">guint32</span>             nm_utils_ip4_prefix_to_netmask      (<em class="parameter"><code><span class="type">guint32</span> prefix</code></em>);</pre>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>prefix</code></em> :</span></p></td>
<td>a CIDR prefix</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the netmask represented by the prefix</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-ip4-routes-from-gvalue"></a><h3>nm_utils_ip4_routes_from_gvalue ()</h3>
<pre class="programlisting"><span class="returnvalue">GSList</span> *            nm_utils_ip4_routes_from_gvalue     (<em class="parameter"><code>const <span class="type">GValue</span> *value</code></em>);</pre>
<p>
Utility function to convert a GPtrArray of GArrays of guint32s representing
a list of NetworkManager IPv4 routes (which is a tuple of route, next hop,
prefix, and metric) into a GSList of <a class="link" href="NMSettingIP4Config.html#NMIP4Route"><span class="type">NMIP4Route</span></a> objects.  The specific
format of this serialization is not guaranteed to be stable and may be
extended in the future.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>gvalue containing a GPtrArray of GArrays of guint32s</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a newly allocated <span class="type">GSList</span> of <a class="link" href="NMSettingIP4Config.html#NMIP4Route"><span class="type">NMIP4Route</span></a> objects. <span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>][<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> NetworkManager.IP4Route]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-ip4-routes-to-gvalue"></a><h3>nm_utils_ip4_routes_to_gvalue ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                nm_utils_ip4_routes_to_gvalue       (<em class="parameter"><code><span class="type">GSList</span> *list</code></em>,
                                                         <em class="parameter"><code><span class="type">GValue</span> *value</code></em>);</pre>
<p>
Utility function to convert a <span class="type">GSList</span> of <a class="link" href="NMSettingIP4Config.html#NMIP4Route"><span class="type">NMIP4Route</span></a> objects into a
GPtrArray of GArrays of guint32s representing a list of NetworkManager IPv4
routes (which is a tuple of route, next hop, prefix, and metric).   The
specific format of this serialization is not guaranteed to be stable and may
be extended in the future.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>list</code></em> :</span></p></td>
<td>a list of <a class="link" href="NMSettingIP4Config.html#NMIP4Route"><span class="type">NMIP4Route</span></a> objects. <span class="annotation">[<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> NMIP4Route]</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>a pointer to a <span class="type">GValue</span> into which to place the converted routes,
which should be unset by the caller (when no longer needed) with
<code class="function">g_value_unset()</code>.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-ip6-addresses-from-gvalue"></a><h3>nm_utils_ip6_addresses_from_gvalue ()</h3>
<pre class="programlisting"><span class="returnvalue">GSList</span> *            nm_utils_ip6_addresses_from_gvalue  (<em class="parameter"><code>const <span class="type">GValue</span> *value</code></em>);</pre>
<p>
Utility function to convert a <span class="type">GPtrArray</span> of <span class="type">GValueArrays</span> of (<span class="type">GArray</span> of guchars) and guint32
representing a list of NetworkManager IPv6 addresses (which is a tuple of address,
prefix, and gateway), into a GSList of <a class="link" href="NMSettingIP6Config.html#NMIP6Address"><span class="type">NMIP6Address</span></a> objects.  The specific format of
this serialization is not guaranteed to be stable and the <span class="type">GValueArray</span> may be
extended in the future.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>gvalue containing a GPtrArray of GValueArrays of (GArray of guchars) and guint32</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a newly allocated <span class="type">GSList</span> of <a class="link" href="NMSettingIP6Config.html#NMIP6Address"><span class="type">NMIP6Address</span></a> objects. <span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>][<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> NetworkManager.IP6Address]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-ip6-addresses-to-gvalue"></a><h3>nm_utils_ip6_addresses_to_gvalue ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                nm_utils_ip6_addresses_to_gvalue    (<em class="parameter"><code><span class="type">GSList</span> *list</code></em>,
                                                         <em class="parameter"><code><span class="type">GValue</span> *value</code></em>);</pre>
<p>
Utility function to convert a <span class="type">GSList</span> of <a class="link" href="NMSettingIP6Config.html#NMIP6Address"><span class="type">NMIP6Address</span></a> objects into a
GPtrArray of GValueArrays representing a list of NetworkManager IPv6 addresses
(which is a tuple of address, prefix, and gateway). The specific format of
this serialization is not guaranteed to be stable and may be extended in the
future.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>list</code></em> :</span></p></td>
<td>a list of <a class="link" href="NMSettingIP6Config.html#NMIP6Address"><span class="type">NMIP6Address</span></a> objects. <span class="annotation">[<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> NMIP6Address]</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>a pointer to a <span class="type">GValue</span> into which to place the converted addresses,
which should be unset by the caller (when no longer needed) with
<code class="function">g_value_unset()</code>.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-ip6-dns-from-gvalue"></a><h3>nm_utils_ip6_dns_from_gvalue ()</h3>
<pre class="programlisting"><span class="returnvalue">GSList</span> *            nm_utils_ip6_dns_from_gvalue        (<em class="parameter"><code>const <span class="type">GValue</span> *value</code></em>);</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-ip6-dns-to-gvalue"></a><h3>nm_utils_ip6_dns_to_gvalue ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                nm_utils_ip6_dns_to_gvalue          (<em class="parameter"><code><span class="type">GSList</span> *list</code></em>,
                                                         <em class="parameter"><code><span class="type">GValue</span> *value</code></em>);</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-ip6-routes-from-gvalue"></a><h3>nm_utils_ip6_routes_from_gvalue ()</h3>
<pre class="programlisting"><span class="returnvalue">GSList</span> *            nm_utils_ip6_routes_from_gvalue     (<em class="parameter"><code>const <span class="type">GValue</span> *value</code></em>);</pre>
<p>
Utility function GPtrArray of GValueArrays of (GArray or guchars), guint32,
(GArray of guchars), and guint32 representing a list of NetworkManager IPv6
routes (which is a tuple of destination, prefix, next hop, and metric)
into a GSList of <a class="link" href="NMSettingIP6Config.html#NMIP6Route"><span class="type">NMIP6Route</span></a> objects.  The specific format of this serialization
is not guaranteed to be stable and may be extended in the future.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>gvalue containing a GPtrArray of GValueArrays of (GArray or guchars), guint32,
(GArray of guchars), and guint32</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a newly allocated <span class="type">GSList</span> of <a class="link" href="NMSettingIP6Config.html#NMIP6Route"><span class="type">NMIP6Route</span></a> objects. <span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>][<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> NetworkManager.IP6Route]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-ip6-routes-to-gvalue"></a><h3>nm_utils_ip6_routes_to_gvalue ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                nm_utils_ip6_routes_to_gvalue       (<em class="parameter"><code><span class="type">GSList</span> *list</code></em>,
                                                         <em class="parameter"><code><span class="type">GValue</span> *value</code></em>);</pre>
<p>
Utility function to convert a <span class="type">GSList</span> of <a class="link" href="NMSettingIP6Config.html#NMIP6Route"><span class="type">NMIP6Route</span></a> objects into a GPtrArray of
GValueArrays of (GArray or guchars), guint32, (GArray of guchars), and guint32
representing a list of NetworkManager IPv6 routes (which is a tuple of destination,
prefix, next hop, and metric).  The specific format of this serialization is not 
guaranteed to be stable and may be extended in the future.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>list</code></em> :</span></p></td>
<td>a list of <a class="link" href="NMSettingIP6Config.html#NMIP6Route"><span class="type">NMIP6Route</span></a> objects. <span class="annotation">[<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> NMIP6Route]</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>a pointer to a <span class="type">GValue</span> into which to place the converted routes,
which should be unset by the caller (when no longer needed) with
<code class="function">g_value_unset()</code>.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-is-empty-ssid"></a><h3>nm_utils_is_empty_ssid ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>            nm_utils_is_empty_ssid              (<em class="parameter"><code>const <span class="type">guint8</span> *ssid</code></em>,
                                                         <em class="parameter"><code><span class="type">int</span> len</code></em>);</pre>
<p>
Different manufacturers use different mechanisms for not broadcasting the
AP's SSID.  This function attempts to detect blank/empty SSIDs using a
number of known SSID-cloaking methods.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>ssid</code></em> :</span></p></td>
<td>pointer to a buffer containing the SSID data</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>len</code></em> :</span></p></td>
<td>length of the SSID data in <em class="parameter"><code>ssid</code></em>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>TRUE if the SSID is "empty", FALSE if it is not</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-rsa-key-encrypt"></a><h3>nm_utils_rsa_key_encrypt ()</h3>
<pre class="programlisting"><span class="returnvalue">GByteArray</span> *        nm_utils_rsa_key_encrypt            (<em class="parameter"><code>const <span class="type">GByteArray</span> *data</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *in_password</code></em>,
                                                         <em class="parameter"><code><span class="type">char</span> **out_password</code></em>,
                                                         <em class="parameter"><code><span class="type">GError</span> **error</code></em>);</pre>
<p>
Encrypts the given RSA private key data with the given password (or generates
a password if no password was given) and converts the data to PEM format
suitable for writing to a file.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
<td>RSA private key data to be encrypted</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>in_password</code></em> :</span></p></td>
<td>existing password to use, if any. <span class="annotation">[<acronym title="NULL is ok, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>out_password</code></em> :</span></p></td>
<td>if <em class="parameter"><code>in_password</code></em> was NULL, a random password will be generated
and returned in this argument. <span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>][<acronym title="NULL is ok, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>error</code></em> :</span></p></td>
<td>detailed error information on return, if an error occurred</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>on success, PEM-formatted data suitable for writing to a PEM-formatted
certificate/private key file. <span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-same-ssid"></a><h3>nm_utils_same_ssid ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>            nm_utils_same_ssid                  (<em class="parameter"><code>const <span class="type">GByteArray</span> *ssid1</code></em>,
                                                         <em class="parameter"><code>const <span class="type">GByteArray</span> *ssid2</code></em>,
                                                         <em class="parameter"><code><span class="type">gboolean</span> ignore_trailing_null</code></em>);</pre>
<p>
Earlier versions of the Linux kernel added a NULL byte to the end of the
SSID to enable easy printing of the SSID on the console or in a terminal,
but this behavior was problematic (SSIDs are simply byte arrays, not strings)
and thus was changed.  This function compensates for that behavior at the
cost of some compatibility with odd SSIDs that may legitimately have trailing
NULLs, even though that is functionally pointless.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>ssid1</code></em> :</span></p></td>
<td>first SSID data to compare</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>ssid2</code></em> :</span></p></td>
<td>second SSID data to compare</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>ignore_trailing_null</code></em> :</span></p></td>
<td>TRUE to ignore one trailing NULL byte</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>TRUE if the SSIDs are the same, FALSE if they are not</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-security-valid"></a><h3>nm_utils_security_valid ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>            nm_utils_security_valid             (<em class="parameter"><code><a class="link" href="libnm-util-nm-utils.html#NMUtilsSecurityType"><span class="type">NMUtilsSecurityType</span></a> type</code></em>,
                                                         <em class="parameter"><code><span class="type">NMDeviceWifiCapabilities</span> wifi_caps</code></em>,
                                                         <em class="parameter"><code><span class="type">gboolean</span> have_ap</code></em>,
                                                         <em class="parameter"><code><span class="type">gboolean</span> adhoc</code></em>,
                                                         <em class="parameter"><code><span class="type">NM80211ApFlags</span> ap_flags</code></em>,
                                                         <em class="parameter"><code><span class="type">NM80211ApSecurityFlags</span> ap_wpa</code></em>,
                                                         <em class="parameter"><code><span class="type">NM80211ApSecurityFlags</span> ap_rsn</code></em>);</pre>
<p>
Given a set of device capabilities, and a desired security type to check
against, determines whether the combination of device, desired security
type, and AP capabilities intersect.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>type</code></em> :</span></p></td>
<td>the security type to check AP flags and device capabilties against,
e.g. <a class="link" href="libnm-util-nm-utils.html#NMU-SEC-STATIC-WEP:CAPS"><span class="type">NMU_SEC_STATIC_WEP</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>wifi_caps</code></em> :</span></p></td>
<td>bitfield of the capabilities of the specific WiFi device, e.g.
<span class="type">NM_WIFI_DEVICE_CAP_CIPHER_WEP40</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>have_ap</code></em> :</span></p></td>
<td>whether the <em class="parameter"><code>ap_flags</code></em>, <em class="parameter"><code>ap_wpa</code></em>, and <em class="parameter"><code>ap_rsn</code></em> arguments are valid</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>adhoc</code></em> :</span></p></td>
<td>whether the capabilities being tested are from an Ad-Hoc AP (IBSS)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>ap_flags</code></em> :</span></p></td>
<td>bitfield of AP capabilities, e.g. <span class="type">NM_802_11_AP_FLAGS_PRIVACY</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>ap_wpa</code></em> :</span></p></td>
<td>bitfield of AP capabilties derived from the AP's WPA beacon,
e.g. (<span class="type">NM_802_11_AP_SEC_PAIR_TKIP</span> | <span class="type">NM_802_11_AP_SEC_KEY_MGMT_PSK</span>)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>ap_rsn</code></em> :</span></p></td>
<td>bitfield of AP capabilties derived from the AP's RSN/WPA2 beacon,
e.g. (<span class="type">NM_802_11_AP_SEC_PAIR_CCMP</span> | <span class="type">NM_802_11_AP_SEC_PAIR_TKIP</span>)</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>TRUE if the device capabilities and AP capabilties intersect and are
compatible with the desired <em class="parameter"><code>type</code></em>, FALSE if they are not</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-slist-free"></a><h3>nm_utils_slist_free ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                nm_utils_slist_free                 (<em class="parameter"><code><span class="type">GSList</span> *list</code></em>,
                                                         <em class="parameter"><code><span class="type">GDestroyNotify</span> elem_destroy_fn</code></em>);</pre>
<p>
Utility function to free a <span class="type">GSList</span>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>list</code></em> :</span></p></td>
<td>a <span class="type">GSList</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>elem_destroy_fn</code></em> :</span></p></td>
<td>user function called for each element in <em class="parameter"><code>list</code></em>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-ssid-to-utf8"></a><h3>nm_utils_ssid_to_utf8 ()</h3>
<pre class="programlisting"><span class="returnvalue">char</span> *              nm_utils_ssid_to_utf8               (<em class="parameter"><code>const <span class="type">GByteArray</span> *ssid</code></em>);</pre>
<p>
WiFi SSIDs are byte arrays, they are _not_ strings.  Thus, an SSID may
contain embedded NULLs and other unprintable characters.  Often it is
useful to print the SSID out for debugging purposes, but that should be the
_only_ use of this function.  Do not use this function for any persistent
storage of the SSID, since the printable SSID returned from this function
cannot be converted back into the real SSID of the access point.
</p>
<p>
This function does almost everything humanly possible to convert the input
into a printable UTF-8 string, using roughly the following procedure:
</p>
<p>
1) if the input data is already UTF-8 safe, no conversion is performed
2) attempts to get the current system language from the LANG environment
   variable, and depending on the language, uses a table of alternative
   encodings to try.  For example, if LANG=hu_HU, the table may first try
   the ISO-8859-2 encoding, and if that fails, try the Windows-1250 encoding.
   If all fallback encodings fail, replaces non-UTF-8 characters with '?'.
3) If the system language was unable to be determined, falls back to the
   ISO-8859-1 encoding, then to the Windows-1251 encoding.
4) If step 3 fails, replaces non-UTF-8 characters with '?'.
</p>
<p>
Again, this function should be used for debugging and display purposes
_only_.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>ssid</code></em> :</span></p></td>
<td>a byte array containing the SSID data</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>an allocated string containing a UTF-8
representation of the SSID, which must be freed by the caller using <code class="function">g_free()</code>.
Returns NULL on errors. <span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-uuid-generate"></a><h3>nm_utils_uuid_generate ()</h3>
<pre class="programlisting"><span class="returnvalue">char</span> *              nm_utils_uuid_generate              (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a newly allocated UUID suitable for use as the <a class="link" href="NMSettingConnection.html" title="NMSettingConnection"><span class="type">NMSettingConnection</span></a>
object's <a class="link" href="NMSettingConnection.html#NMSettingConnection--id" title='The "id" property'><span class="type">"id"</span></a>: property.  Should be freed with <code class="function">g_free()</code>
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-uuid-generate-from-string"></a><h3>nm_utils_uuid_generate_from_string ()</h3>
<pre class="programlisting"><span class="returnvalue">char</span> *              nm_utils_uuid_generate_from_string  (<em class="parameter"><code>const <span class="type">char</span> *s</code></em>);</pre>
<p>
For a given <em class="parameter"><code>s</code></em>, this function will always return the same UUID.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>s</code></em> :</span></p></td>
<td>a string to use as the seed for the UUID</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a newly allocated UUID suitable for use as the <a class="link" href="NMSettingConnection.html" title="NMSettingConnection"><span class="type">NMSettingConnection</span></a>
object's <a class="link" href="NMSettingConnection.html#NMSettingConnection--id" title='The "id" property'><span class="type">"id"</span></a>: property</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-wifi-channel-to-freq"></a><h3>nm_utils_wifi_channel_to_freq ()</h3>
<pre class="programlisting"><span class="returnvalue">guint32</span>             nm_utils_wifi_channel_to_freq       (<em class="parameter"><code><span class="type">guint32</span> channel</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *band</code></em>);</pre>
<p>
Utility function to translate a WiFi channel to its corresponding frequency.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>channel</code></em> :</span></p></td>
<td>channel</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>band</code></em> :</span></p></td>
<td>frequency band for wireless ("a" or "bg")</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the frequency represented by the channel of the band,
or -1 when the freq is invalid, or 0 when the band
is invalid</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-wifi-find-next-channel"></a><h3>nm_utils_wifi_find_next_channel ()</h3>
<pre class="programlisting"><span class="returnvalue">guint32</span>             nm_utils_wifi_find_next_channel     (<em class="parameter"><code><span class="type">guint32</span> channel</code></em>,
                                                         <em class="parameter"><code><span class="type">int</span> direction</code></em>,
                                                         <em class="parameter"><code><span class="type">char</span> *band</code></em>);</pre>
<p>
Utility function to find out next/previous WiFi channel for a channel.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>channel</code></em> :</span></p></td>
<td>current channel</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>direction</code></em> :</span></p></td>
<td>whether going downward (0 or less) or upward (1 or more)</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>band</code></em> :</span></p></td>
<td>frequency band for wireless ("a" or "bg")</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the next channel in the specified direction or 0</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-wifi-freq-to-channel"></a><h3>nm_utils_wifi_freq_to_channel ()</h3>
<pre class="programlisting"><span class="returnvalue">guint32</span>             nm_utils_wifi_freq_to_channel       (<em class="parameter"><code><span class="type">guint32</span> freq</code></em>);</pre>
<p>
Utility function to translate a WiFi frequency to its corresponding channel.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>freq</code></em> :</span></p></td>
<td>frequency</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the channel represented by the frequency or 0</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="nm-utils-wifi-is-channel-valid"></a><h3>nm_utils_wifi_is_channel_valid ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>            nm_utils_wifi_is_channel_valid      (<em class="parameter"><code><span class="type">guint32</span> channel</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *band</code></em>);</pre>
<p>
Utility function to verify WiFi channel validity.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>channel</code></em> :</span></p></td>
<td>channel</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>band</code></em> :</span></p></td>
<td>frequency band for wireless ("a" or "bg")</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>TRUE or FALSE</td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
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