enter_quiet_zone(3) [osf1 man page]

enter_quiet_zone(3)					     Library Functions Manual					       enter_quiet_zone(3)

NAME

       enter_quiet_zone, exit_quiet_zone - Prevent keyboard interruption of program actions (Enhanced Security)

LIBRARY

       Security Library - libsecurity.so

SYNOPSIS

       #include <prot.h>
       void enter_quiet_zone();

       #include <prot.h>
       void exit_quiet_zone();

DESCRIPTION

       The  function  sets  the appropriate signals to a state that prevents keyboard interruption of program actions.	If this function is called
       multiple times without an intervening call, nothing is done.  If an alarm has been set, the time left to go is saved.

       The function restores the signals to their previous state.  Do not call this function from reentrant code because it uses a static area.  A
       pending alarm clock is restored.

       The signals that are affected are SIGHUP, SIGINT, SIGQUIT, SIGSYS, SIGALRM.

RELATED INFORMATION

       Security

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															       enter_quiet_zone(3)

get_num_crypts(3)					     Library Functions Manual						 get_num_crypts(3)

NAME

       get_num_crypts, get_crypt_name - determine the encryption types available (Enhanced Security)

LIBRARY

       Security Library (libsecurity.so)

SYNOPSIS

       #include <prot.h>

       int get_num_crypts(void);

       const char *get_crypt_name(
	    int cryptnum);

PARAMETERS

       cryptnum
	      The encryption algorithm for which the name is to be returned.

DESCRIPTION

       The  get_num_crypts()  function returns the number of encryption algorithms which the current system supports.  This value is non-negative,
       and at least four.

       The get_crypt_name() function returns a pointer to static storage containing the name of the encryption	algorithm  with  the  index  value
       given  in  the  cryptnum parameter.  Other calls to get_crypt_name() could overwrite the stored name, so applications should copy the names
       this function returns if there is a chance that other parts of the application might also call this function.  This function  returns  NULL
       if  the	given algorithm index is negative or if it is not less than the return value of get_num_crypts().  Algorithm indexes are most com-
       monly obtained from the fd_oldcrypt and fd_newcrypt fields of an extended profile entry.

       The dxaccounts system management GUI uses the get_num_crypts() and get_crypt_name() functions to determine  how	to  display  the  menu	of
       allowable encryption algorithms for ENHANCED security.

RETURN VALUES

       The get_num_crypts() function returns a non-negative value which is at least four.

       The get_crypt_name() function returns a name for a known encryption algorithm, or a NULL pointer if the given index is out of range.

NOTES

       In order to quickstart a program, the program must be linked as follows:

	    -lsecurity -ldb -laud -lm

       See the shared library discussion in the Programmer's Guide for more information about using the quickstarting feature.

RELATED INFORMATION

       getespwent(3), getesdfent(3), dispcrypt(3), dxaccounts(8)

       Security delim off

																 get_num_crypts(3)