posix man page for getipsecprotobynum

getipsecprotobyname(3NSL)			       Networking Services Library Functions				 getipsecprotobyname(3NSL)

NAME

       getipsecprotobyname, getipsecprotobynum - query IPsec protocols entries

SYNOPSIS

       cc -flag ...  file ...-lnsl [-library ...]
       #include <netdb.h>

       int getipsecprotobyname(const char *proto_name);

       char *getipsecprotobynum(int proto_num);

DESCRIPTION

       Use  the getipsecprotobyname() and getipsecprotobynum() functions to obtain the IPsec algorithm mappings that are defined by ipsecalgs(1M).
       You can also use the getipsecprotobyname() and getipsecprotobynum() functions in conjunction with getipsecalgbyname(3NSL)  and  getipsecal-
       gbynum(3NSL)  to  obtain  information  about  the  supported IPsec algorithms. The IPsec algorithms and associated protocol name spaces are
       defined by RFC 2407.

       getipsecprotobyname() takes as an argument the name of an IPsec protocol and returns its assigned protocol  number.  The  character  string
       returned by the getipsecprotobyname() function must be freed by the called when it is no longer needed.

       getipsecprotobynum() takes as an argument a protocol number and returns the corresponding protocol name.

       The following protocol numbers are pre-defined:

       IPSEC_PROTO_ESP	       Defines the encryption algorithms (transforms) that can be used by IPsec to provide data confidentiality.

       IPSEC_PROTO_AH	       Defines the authentication algorithms (transforms) that can be used by IPsec to provide authentication.

PARAMETERS

       proto_name      A pointer to the name of an IPsec protocol.

       proto_num       A pointer to a protocol number. conditions.

RETURN VALUES

       The getipsecprotobyname() function returns a protocol number upon success, or -1 if the protocol specified does not exist.

	The getipsecprotobynum() function returns a protocol name upon success, or the NULL value if the protocol number specified does not exist.

ATTRIBUTES

       See attributes(5)  for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsl (32 bit)		   |
       +-----------------------------+-----------------------------+
       |			     |SUNWcslx (64 bit) 	   |
       +-----------------------------+-----------------------------+
       |MT Level		     |MT Safe			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       ipsecalgs(1M), getipsecalgbyname(3NSL), getipsecalgbynum(3NSL), attributes(5)

       Piper, D. RFC 2407, The Internet IP Security Domain of Interpretation for ISAKMP. Network Working Group. November, 1998.

SunOS 5.10							    13 Aug 2003 					 getipsecprotobyname(3NSL)