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Standard C Library Functions                  stack_getbounds(3C)



NAME
     stack_getbounds - retrieve stack boundaries

SYNOPSIS
     #include 

     int stack_getbounds(stack_t *sp);


DESCRIPTION
     The stack_getbounds() function  retrieves  the  stack  boun-
     daries that the calling thread is currently operating on. If
     the thread is currently operating on  the  alternate  signal
     stack, this function will retrieve the bounds of that stack.


     If successful, stack_getbounds() sets the  ss_sp  member  of
     the  stack_t  structure  pointed to by sp to the base of the
     stack region and the ss_size member  to  its  size  (maximum
     extent)  in  bytes. The ss_flags member is set to SS_ONSTACK
     if the calling thread is executing on its  alternate  signal
     stack, and zero otherwise.

RETURN VALUES
     Upon successful  completion,  stack_getbounds()  returns  0.
     Otherwise,  -1  is returned and errno is set to indicate the
     error.

ERRORS
     The stack_getbounds() function will fail if:

     EFAULT    The sp argument does not refer to a valid address.


ATTRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:



     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Interface Stability         | Committed                   |
    |_____________________________|_____________________________|
    | MT-Level                    | Async-Signal-Safe           |
    |_____________________________|_____________________________|


SEE ALSO
     getustack(2),         sigaction(2),          sigaltstack(2),
     stack_setbounds(3C), attributes(5)



SunOS 5.11          Last change: 18 Jul 2002                    1