ibm-information-center/dist/eclipse/plugins/i5OS.ic.apis_5.4.0.1/eimgettargetfromidentifier.htm

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<title>eimGetTargetFromIdentifier()--Get EIM Target Identities from the Identifier</title>
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<h2>eimGetTargetFromIdentifier()
--Get EIM Target Identities from the Identifier</h2>
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<br>
&nbsp;&nbsp;Syntax
<pre>
#include &lt;eim.h&gt;
int eimGetTargetFromIdentifier(EimHandle * <em>eim</em>,
EimIdentifierInfo * <em>idName</em>,
char * <em>targetRegistryName</em>,
char * <em>additionalInformation</em>,
unsigned int <em>lengthOfListData</em>,
EimList * <em>listData</em>,
EimRC * <em>eimrc</em>)
</pre>
&nbsp;&nbsp;Service Program Name: QSYS/QSYEIM&nbsp;&nbsp;<br>
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<br>
&nbsp;&nbsp;Default Public Authority: *USE<br>
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&nbsp;&nbsp;Threadsafe: Yes<br>
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<p>The <strong>eimGetTargetFromIdentifier()</strong> function gets the target
identity or identities for the specified registry that is associated with the
specified EIM identifier. </p>
<p>
<img src="delta.gif" alt="Start of change">
See <a href="eimmappinglookup.htm">EIM Mapping Lookup Algorithm</a>
for the steps involved in a mapping lookup operation.
<img src="deltaend.gif" alt="End of change">
</p>
<br>
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<h3>Authorities and Locks</h3>
<dl>
<dt><em>EIM Data</em></dt>
<dd>Access to EIM data is controlled by EIM access groups.
LDAP administrators also have access to EIM data.
The access groups whose members have authority to the EIM
data for this API follow:
<ul>
<li>EIM Administrator</li>
<li>EIM Registries Administrator</li>
<li>EIM Identifiers Administrator</li>
<li>EIM Mapping Lookup</li>
<li>EIM authority to an individual registry</li>
</ul>
<p>The list returned contains only the information that the
user has authority to access.
</dd>
</dl>
<br>
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<h3>Parameters</h3>
<dl>
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<!-- eim -->
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<dt><strong>eim</strong>&nbsp;&nbsp;(Input)</dt>
<dd>
The EIM handle returned by a previous call to eimCreateHandle().
A valid connection is required for this function.
<br><br></dd>
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<!-- idName -->
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<dt><strong>idName</strong>&nbsp;&nbsp;(Input)</dt>
<dd>
A structure that contains the name of the identifier for this lookup
operation. The layout of the EimIdentifierInfo structure follows:
<pre>
enum EimIdType {
EIM_UNIQUE_NAME,
EIM_ENTRY_UUID,
EIM_NAME
};
typedef struct EimIdentifierInfo
{
union {
char * uniqueName;
char * entryUUID;
char * name;
} id;
enum EimIdType idtype;
} EimIdentifierInfo;
</pre>
<p><samp>idtype</samp> indicates which identifier name is provided. Use of
the <samp>uniqueName</samp> provides the best performance. Specifying an
<samp>idtype</samp> of EIM_NAME does not
guarantee that a unique EIM identifier will be found. Therefore, use of
EIM_NAME may result in an error.</p>
</dd>
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<!-- targetRegistryName -->
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<dt><strong>targetRegistryName</strong>&nbsp;&nbsp;(Input)</dt>
<dd>
The target registry for this lookup operation.
A NULL parameter indicates that the <samp>localRegistry</samp>
set by the eimSetConfiguration() API or the
eimSetConfigurationExt() API should be used.
<br><br></dd>
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<!-- additionalInfo -->
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<dt><strong>additionalInfo</strong>&nbsp;&nbsp;(Input)</dt>
<dd>
Additional information that will be used as selection criteria for
this operation. This may be NULL.
<br><br></dd>
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<!-- lengthOfListData -->
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<dt><strong>lengthOfListData</strong>&nbsp;&nbsp;(Input)</dt>
<dd>
The number of bytes provided by the caller for the
<em>listData</em> parameter.
The minimum size required is 20 bytes.
<br><br></dd>
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<!-- listData -->
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<dt><strong>listData</strong>&nbsp;&nbsp;(Output)</dt>
<dd>
A pointer to the EimList structure.
<p>The EimList structure contains information about the returned data.
The API will return as much data as space has been provided.
The data returned is a linked list of EimTargetIdentity structures.
firstEntry is used to get to the first EimTargetIdentity structure in the
linked list. Each EimTargetIdentity entry contains a user name returned
by this lookup operation.</p>
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<!-- EimList -->
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<p>EimList structure:</p>
<pre>
typedef struct EimList
{
unsigned int bytesReturned; /* Number of bytes actually returned
by the API. */
unsigned int bytesAvailable; /* Number of bytes of available data
that could have been returned by
the API. */
unsigned int entriesReturned; /* Number of entries actually
returned by the API. */
unsigned int entriesAvailable; /* Number of entries available to be
returned by the API. */
unsigned int firstEntry; /* Displacement to the first linked
list entry. This byte offset is
relative to the start of the
EimList structure. */
} EimList;
</pre>
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<!-- EimTargetIdentity -->
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<p>EimTargetIdentity structure: </p>
<pre>
typedef struct EimTargetIdentity
{
unsigned int nextEntry; /* Displacement to next entry. This
byte offset is relative to the
start of this structure. */
EimListData userName; /* User name */
enum EimAssociationType type; /* Association type */
<img src="delta.gif" alt="Start of change">
EimListData sourceGroupRegistry;/* Source group registry name */
EimListData targetGroupRegistry;/* Target group registry name */
EimSubList credentialInfo; /* EimCredentialInfo sublist */
<img src="deltaend.gif" alt="End of change">
} EimTargetIdentity;
</pre>
<p>
<img src="delta.gif" alt="Start of change">
The <em>sourceGroupRegistry</em> will not be returned by this API. The
<em>targetGroupRegistry</em> will be returned if the target identity
was found using a target association to a group registry.</p>
<p>
This API will always return 0 for the numbers of entries in the
credentialInfo sublist. If you need access to the credential
information, use the Get EIM Target Identities
and Credentials from the Identifier (eimGetTgtCredsFromIdentifier) API.
</p>
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<!-- EimSubList -->
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<p>EimSubList structure:</p>
<pre>
typedef struct EimSubList
{
unsigned int listNum; /* Number of entries in the list */
unsigned int disp; /* Displacement to sublist. This
byte offset is relative to the
start of the parent structure;
that is, the structure containing
this structure. */
} EimSubList;
</pre>
<img src="deltaend.gif" alt="End of change">
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<!-- EimListData -->
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<p>EimListData structure:</p>
<pre>
typedef struct EimListData
{
unsigned int length; /* Length of data */
unsigned int disp; /* Displacement to data. This byte
offset is relative to the start of
the parent structure; that is, the
structure containing this
structure. */
} EimListData;
</pre>
</dd>
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<!-- eimrc -->
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<dt><strong>eimrc</strong>&nbsp;&nbsp;(Input/Output)</dt>
<dd>
The structure in which to return error code information. If the return value
is not 0, eimrc is set with additional information. This parameter may be NULL.
For the format of the structure, see <a href="eimrc.htm">EimRC--EIM Return Code
Parameter</a>.
<br><br></dd>
</dl>
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<h3>Return Value</h3>
<p>The return value from the API. Following each return value is the list of
possible values for the
<samp>messageCatalogMessageID</samp> field in the <em>eimrc</em> parameter
for that value.</p>
<dl>
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<!-- 0 -->
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<dt><strong>0</strong></dt>
<dd>Request was successful.<br>
<br>
</dd>
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<!-- EACCES -->
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<dt><strong>EACCES </strong></dt>
<dd>Access denied. Not enough permissions to access data.<br>
<br>
<table cellpadding="5">
<tr>
<td align="left" valign="top"><em>EIMERR_ACCESS (1)</em></td>
<td align="left" valign="top">Insufficient access to EIM data.</td>
</tr>
</table>
<br>
</dd>
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<!-- EBADDATA -->
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<dt><strong>EBADDATA </strong></dt>
<dd>eimrc is not valid.<br>
<br>
</dd>
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<!-- EBADNAME -->
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<dt><strong>EBADNAME </strong></dt>
<dd>Registry or identifier not found or insufficient access to EIM data.<br>
<br>
<table cellpadding="5">
<tr>
<td align="left" valign="top"><em>EIMERR_IDNAME_AMBIGUOUS (20)</em></td>
<td align="left" valign="top">More than 1 EIM Identifier was found that
matches the requested Identifier name.</td>
</tr>
<tr>
<td align="left" valign="top"><em>EIMERR_NOIDENTIFIER (25)</em></td>
<td align="left" valign="top">EIM Identifier not found or insufficient access to EIM data.</td>
</tr>
<tr>
<td align="left" valign="top"><em>EIMERR_NOREG (28)</em></td>
<td align="left" valign="top">EIM Registry not found or insufficient access to EIM data.</td>
</tr>
</table>
<br>
</dd>
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<!-- EBUSY -->
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<dt><strong>EBUSY </strong></dt>
<dd>Unable to allocate internal system object.<br>
<br>
<table cellpadding="5">
<tr>
<td align="left" valign="top"><em>EIMERR_NOLOCK (26)</em></td>
<td align="left" valign="top">Unable to allocate internal system object.</td>
</tr>
</table>
<br>
</dd>
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<!-- ECONVERT -->
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<dt><strong>ECONVERT </strong></dt>
<dd>Data conversion error.<br>
<br>
<table cellpadding="5">
<tr>
<td align="left" valign="top"><em>EIMERR_DATA_CONVERSION (13)</em></td>
<td align="left" valign="top">Error occurred when converting data between code pages.</td>
</tr>
</table>
<br>
</dd>
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<!-- EINVAL -->
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<dt><strong>EINVAL </strong></dt>
<dd>Input parameter was not valid.<br>
<br>
<table cellpadding="5">
<tr>
<td align="left" valign="top"><em>EIMERR_EIMLIST_SIZE (16)</em></td>
<td align="left" valign="top">Length of EimList is not valid. EimList must
be at least 20 bytes in length.</td>
</tr>
<tr>
<td align="left" valign="top"><em>EIMERR_HANDLE_INVAL (17)</em></td>
<td align="left" valign="top">EimHandle is not valid.</td>
</tr>
<tr>
<td align="left" valign="top"><em>EIMERR_IDNAME_TYPE_INVAL (52)</em></td>
<td align="left" valign="top">The EimIdType value is not valid.</td>
</tr>
<tr>
<td align="left" valign="top"><em>EIMERR_PARM_REQ (34)</em></td>
<td align="left" valign="top">Missing required parameter. Please check API documentation.</td>
</tr>
<tr>
<td align="left" valign="top"><em>EIMERR_PTR_INVAL (35)</em></td>
<td align="left" valign="top">Pointer parameter is not valid.</td>
</tr>
<tr>
<td align="left" valign="top"><em>EIMERR_SPACE (41)</em></td>
<td align="left" valign="top">Unexpected error accessing parameter.</td>
</tr>
</table>
<br>
</dd>
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<!-- ENOMEM -->
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<dt><strong>ENOMEM </strong></dt>
<dd>Unable to allocate required space.<br>
<br>
<table cellpadding="5">
<tr>
<td align="left" valign="top"><em>EIMERR_NOMEM (27)</em></td>
<td align="left" valign="top">No memory available. Unable to allocate required space.</td>
</tr>
</table>
<br>
</dd>
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<!-- ENOTCONN -->
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<dt><strong>ENOTCONN </strong></dt>
<dd>LDAP connection has not been made.<br>
<br>
<table cellpadding="5">
<tr>
<td align="left" valign="top"><em>EIMERR_NOT_CONN (31)</em></td>
<td align="left" valign="top">Not connected to LDAP. Use eimConnect() API and
try the request again.</td>
</tr>
</table>
<br>
</dd>
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<!-- EUNKNOWN -->
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<dt><strong>EUNKNOWN </strong></dt>
<dd>Unexpected exception.<br>
<br>
<table cellpadding="5">
<tr>
<td align="left" valign="top"><em>EIMERR_LDAP_ERR (23)</em></td>
<td align="left" valign="top">Unexpected LDAP error. %s</td>
</tr>
<tr>
<td align="left" valign="top"><em>EIMERR_UNEXP_OBJ_VIOLATION (56)</em></td>
<td align="left" valign="top">Unexpected object violation.</td>
</tr>
<tr>
<td align="left" valign="top"><em>EIMERR_UNKNOWN (44)</em></td>
<td align="left" valign="top">Unknown error or unknown system state.</td>
</tr>
</table>
</dd>
</dl>
<br>
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<!-- R E L A T E D I N F O R M A T I O N -->
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<h3>Related Information</h3>
<ul>
<li><a href="eimgettargetfromsource.htm">eimGetTargetFromSource()</a>
--Get EIM Target Identities from the Source<br>
<br>
</li>
<li><a href="eimgettgtcredsfromidentifier.htm">eimGetTgtCredsFromIdentifier()</a>
--Get EIM Target Identities and Credentials from the Identifier<br>
<br>
</li>
</ul>
<br>
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<!-- E X A M P L E -->
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<h3>Example</h3>
<p>See <a href="../apiref/aboutapis.htm#codedisclaimer">Code disclaimer information</a>
for information pertaining to code examples.</p>
<p>The following example will get the list of users in the target
registry, MyRegistry, that are associated with the specified
identifier.</p>
<pre>
#include &lt;eim.h&gt;
#include &lt;stddef.h&gt;
#include &lt;stdio.h&gt;
#include &lt;stdlib.h&gt;
void printAssociationType(int type);
void printListResults(EimList * list);
void printListData(char * fieldName,
void * entry,
int offset);
int main(int argc, char *argv[])
{
int rc;
char eimerr[100];
EimRC * err;
EimHandle * handle;
char listData[1000];
EimList * list = (EimList * ) listData;
EimIdentifierInfo x;
<em>/* Get eim handle from input arg. */</em>
<em>/* This handle is already connected to EIM. */</em>
handle = (EimHandle *)argv[1];
<em>/* Set up error structure. */</em>
memset(eimerr,0x00,100);
err = (EimRC *)eimerr;
err->memoryProvidedByCaller = 100;
<em>/* Set up identifier information */</em>
x.idtype = EIM_UNIQUE_NAME;
x.id.uniqueName = "mjones";
if (0 != (rc = eimGetTargetFromIdentifier(handle,
&amp;x,
"MyRegistry",
NULL,
1000,
list,
err)))
{
printf("Get Target from identifier error = %d", rc);
return -1;
}
printListResults(list);
return 0;
}
void printListResults(EimList * list)
{
int i;
EimTargetIdentity * entry;
printf("___________\n");
printf(" bytesReturned = %d\n", list->bytesReturned);
printf(" bytesAvailable = %d\n", list->bytesAvailable);
printf(" entriesReturned = %d\n", list->entriesReturned);
printf(" entriesAvailable = %d\n", list->entriesAvailable);
printf("\n");
entry = (EimTargetIdentity *)((char *)list + list->firstEntry);
for (i = 0; i &lt; list->entriesReturned; i++)
{
printf("\n");
printf("===============\n");
printf("Entry %d.\n", i);
<em>/* Print out results */</em>
printListData("target user",
entry,
offsetof(EimTargetIdentity, userName));
printAssociationType(entry-&gt;type);
printListData("target group registry",
entry,
offsetof(EimTargetIdentity, targetGroupRegistry));
<em>/* advance to next entry */</em>
entry = (EimTargetIdentity *)((char *)entry + entry->nextEntry);
}
printf("\n");
}
void printListData(char * fieldName,
void * entry,
int offset)
{
EimListData * listData;
char * data;
int dataLength;
printf(" %s = ",fieldName);
<em>/* Address the EimListData object */</em>
listData = (EimListData *)((char *)entry + offset);
<em>/* Print out results */</em>
data = (char *)entry + listData->disp;
dataLength = listData->length;
if (dataLength > 0)
printf("%.*s\n",dataLength, data);
else
printf("Not found.\n");
}
void printAssociationType(int type)
{
switch(type)
{
case EIM_TARGET:
printf(" Target Association.\n");
break;
case EIM_DEFAULT_DOMAIN_POLICY:
printf(" Default Domain Policy Association.\n");
break;
default:
printf("ERROR - unknown association type.\n");
break;
}
}
</pre>
<br>
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<hr>
API introduced: V5R2
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