NAME

       genders_isnode, genders_isattr, genders_isattrval - node, attribute, value check routines

SYNOPSIS

       #include <genders.h>

       int genders_isnode(genders_t handle, const char *node);

       int genders_isattr(genders_t handle, const char *attr);

       int genders_isattrval(genders_t handle, const char *attr, const char *val);

DESCRIPTION

       genders_isnode()  tests  if the node pointed to by node is listed in the genders file.  If
       node is NULL, the current node is tested.

       genders_isattr() tests if the attribute pointed to by attr is listed for some node in  the
       genders file.

       genders_isattrval()  tests  if  the  attribute  pointed  to  by attr is equal to the value
       pointed to by val for some node in the genders file.

RETURN VALUES

       For genders_isnode(), if node is listed in the genders file, 1 is returned.  If it is  not
       listed, 0 is returned.

       For  genders_isattr(), if attr is listed in the genders file, 1 is returned.  If it is not
       listed, 0 is returned.

       For genders_isattrval(), if attr=val is listed in the genders file, 1 is returned.  If  it
       is not listed, 0 is returned.

       On error, all three return -1 and an error code is returned in handle.  The error code can
       be retrieved via genders_errnum(3) , and a description of the error code can be  retrieved
       via genders_strerror(3).  Error codes are defined in genders.h.

ERRORS

       GENDERS_ERR_NULLHANDLE
              The   handle   parameter  is  NULL.   The  genders  handle  must  be  created  with
              genders_handle_create(3).

       GENDERS_ERR_NOTLOADED
              genders_load_data(3) has not been called to load genders data.

       GENDERS_ERR_PARAMETERS
              An incorrect parameter has been passed in.

       GENDERS_ERR_MAGIC
              handle has an incorrect magic number.  handle does not point to a genders handle or
              handle has been destroyed by genders_handle_destroy(3).

FILES

       /usr/include/genders.h

SEE ALSO

       libgenders(3),    genders_handle_create(3),    genders_load_data(3),    genders_errnum(3),
       genders_strerror(3)