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sia_validate_user(3)
NAME
  sia_validate_user  - perform password validation for SIA (Security
  Integration Architecture)

LIBRARY
  Standard C library (libc.so and libc.a)

SYNOPSIS
  #include <sia.h>
  #include <siad.h>

  int sia_validate_user( sia_collect_func_t *collect,
  int argc,
  char **argv,
  char *hostname,
  char *username,
  char *tty,
  int colinput,
  char *gssapi,
  char *passphrase);

PARAMETERS
  argc
      The argc and argv parameters are used by the underlying security
      mechanisms for generating audit records and initializing database
      accesses.	 There should always be at least one argument argv[0] which
      contains the name of the command or utility issuing a session
      initialization.  These parameters are read only.

  hostname
      The hostname parameter is used to determine if the session is being
      requested by a remote system.  If the request is from a remote system,
      the hostname parameter points to a string containing the remote host
      information.  If information about the requesting remote user is
      available, the information is in the form "node::user" for DECnet or
      "user@host" for IP.  If the remote user information is not available,
      the information is the remote "host".  For local requests, this
      parameter is passed as a NULL pointer.

  username
      The username parameter is be set to point to the name or string
      representing the requesting user if this information is available.
      Otherwise this parameter is set to NULL.	This parameter is read only.

  tty The ttyname parameter is set to point to the name or string
      representing the requesting or active tty if this information is
      available.  Otherwise this parameter is set to NULL.  This parameter is
      read only.

  colinput
      The colinput parameter specifies whether the collection of input is
      allowed during this session. A "1" means yes and "0" means no.  This
      parameter is read only.

  gssapi
      The gssapi pointer is for future expansion to utilize gss_api
      datatypes. It is not currently used and should be set to NULL.  This
      parameter is currently read only.

  passphrase
       The passphrase parameter provides a precollected password to the
      authentication routine.  Set this parameter to NULL if no passphrase
      has been precollected.  This parameter is read only.  Note that some
      third-party security mechanisms may fail to validate users when the
      passphrase has been pre-collected, since those mechanisms may have
      time-dependent challenge-response dialogues as an authentication
      requirement.  If this parameter is NULL, and a collection routine is
      provided, and the colinput parameter is non-zero, the passphrase will
      be gathered through the collection routine if required.

DESCRIPTION
  The sia_validate_user() routine performs password validation by calling
  sia_ses_init(), sia_ses_reauthent(), and sia_ses_release.

RETURN VALUES
  The sia_val_user() routine returns SIASUCCESS if sia_ses_init(),
  sia_ses_reauthent(), and sia_ses_release succeed. SIAFAIL is returned if
  any of the routines fail.

ERRORS
  The errno value is not (normally) set explicitly by sia_* routines.  The
  errno values are those returned from the dynamic loader interface, from
  dependent (siad_*) routines, or from malloc.	Possible errors include
  resource constraints (no memory) and various authentication failures.

FILES
  /etc/sia/matrix.conf

RELATED INFORMATION
  sia_ses_reauthent(3), sia_ses_release(3), sia_ses_init(3),
  siad_ses_init(3), siad_init(3), matrix.conf(4)

  Security