Content-type: text/html Man page of get_num_crypts

get_num_crypts

Section: C Library Functions (3)
Index Return to Main Contents
 

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 commonly 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(8X)

Security delim off


 

Index

NAME
LIBRARY
SYNOPSIS
PARAMETERS
DESCRIPTION
RETURN VALUES
NOTES
RELATED INFORMATION

This document was created by man2html, using the manual pages.
Time: 02:42:15 GMT, October 02, 2010