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[socket] Add concept of a generalised socket address converter

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Add sock_aton() and sock_ntoa() to allow for parsing and transcription
of arbitrary socket addresses.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2013-10-21 14:04:06 +01:00
parent 8f30ea4a6b
commit b6a9152f8c
3 changed files with 102 additions and 0 deletions
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1
src/include/ipxe/errfile.h
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@@ -215,6 +215,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
#define ERRFILE_mount ( ERRFILE_NET | 0x00350000 )
#define ERRFILE_oncrpc_iob ( ERRFILE_NET | 0x00360000 )
#define ERRFILE_neighbour ( ERRFILE_NET | 0x00370000 )
#define ERRFILE_socket ( ERRFILE_NET | 0x00380000 )
#define ERRFILE_image ( ERRFILE_IMAGE | 0x00000000 )
#define ERRFILE_elf ( ERRFILE_IMAGE | 0x00010000 )

36
src/include/ipxe/socket.h
View File

@@ -10,6 +10,7 @@
FILE_LICENCE ( GPL2_OR_LATER );
#include <stdint.h>
#include <ipxe/tables.h>
/**
* @defgroup commtypes Communication semantics
@@ -99,4 +100,39 @@ struct sockaddr {
char pad[ SA_LEN - sizeof ( sa_family_t ) ];
} __attribute__ (( may_alias ));
/**
* Socket address converter
*
*/
struct sockaddr_converter {
/** Socket address family
*
* This is an AF_XXX constant.
*/
sa_family_t family;
/** Transcribe socket address
*
* @v sa Socket address
* @ret string Socket address string
*/
const char * ( * ntoa ) ( struct sockaddr *sa );
/** Parse socket address
*
* @v string Socket address stringh
* @v sa Socket address to fill in
* @ret rc Return status code
*/
int ( * aton ) ( const char *string, struct sockaddr *sa );
};
/** Socket address converter table */
#define SOCKADDR_CONVERTERS \
__table ( struct sockaddr_converter, "sockaddr_converters" )
/** Declare a socket address converter */
#define __sockaddr_converter __table_entry ( SOCKADDR_CONVERTERS, 01 )
extern const char * sock_ntoa ( struct sockaddr *sa );
extern int sock_aton ( const char *string, struct sockaddr *sa );
#endif /* _IPXE_SOCKET_H */