Novell Doc: Identity Manager 3.6.1 Fan-Out Driver for Linux and UNIX Administration Guide

Syntax

#include <ascauth.h>

int ASC_READATTR(ASCENV *asce, char *object, char *attribute,
                   char *buffer, u_int bufsize);

Parameters

asce	The environment item returned from the call to ASC_INIT() or ASC_INIT_EXT().
object	The Enterprise User ID or fully distinguished object name of the object whose attribute value is to be returned.
attribute	The single-valued attribute whose value is to be returned for the object. Only the Home Directory attribute of a User object is supported at this time.
buffer	The buffer in which the object's attribute value is to be returned. The results are truncated and the call returns AS_TOOSMALL if the buffer size cannot hold the entire attribute value.
bufsize	The size of the buffer you provided.

Return Values

Returns one of the following integer values defined in ascauth.h:

AS_OK	Attribute value has been placed in the buffer successfully
AS_BADCLIENT	Local host not authorized to query the Core Driver
AS_ATTRNOTFOUND	Attribute does not exist for the specified object
AS_NOAGENT	No Core Driver could be contacted
AS_NOAUTHENV	No environment has been established
AS_INVALIDREQ	Call rejected by the Core Driver as not valid or not supported
AS_INVALIDARGS	Invalid arguments supplied to the function
AS_TOOSMALL	Size of the pre-allocated buffer is too small-results are truncated
AS_INVALIDOBJ	Specified object does not exist
AS_KEYEXPIRED	Old key rejected by the Core Driver because the expiration date has passed

Remarks

The results are truncated, and the call returns AS_TOOSMALL if the buffer size cannot hold the entire attribute value. You can retry with a larger buffer.

Limitations

Only the Home Directory attribute of a User object is supported at this time.

Example

#include <stdio.h>
#include <stdlib.h>
#include <ascauth.h>

main(int argc, char *argv[])
{
  ASCENV *asce;
  char *user, buffer[2000];
  int rc;

  if (argc != 2) {
    fprintf(stderr, "usage: %s <UserObjectFDN>\n", argv[0]);
    exit(EXIT_FAILURE);
  }

  user = argv[1];
  
/* initialize the authentication environment */
  asce = ASC_INIT(NULL);
  if (asce == NULL) {
    fprintf(stderr, "Error: cannot initialize authentication environment\n");
    exit(EXIT_FAILURE);
  }

  /* Get User object's home directory info */
  rc = ASC_READATTR(asce, user, "HOME DIRECTORY", buffer, sizeof(buffer));
  if (rc == AS_OK)
    printf("Home Directory for User object %s:\n%s\n", user, buffer);
  else
    printf("RC=%d, %s", rc, ASC_STRERROR(rc));
   
  /* now terminate the authentication environment */
  ASC_TERM(asce);
  return 0;
}

ASC_READATTR