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[AX.25]: Constify ax25 utility functions 

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ralf Baechle 2006-12-07 15:43:13 -08:00 committed by David S. Miller
parent 6c1bbcc883
commit e8cc49bb0f
2 changed files with 21 additions and 16 deletions
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18
include/net/ax25.h
View File

@ -283,14 +283,16 @@ extern struct sock *ax25_make_new(struct sock *, struct ax25_dev *);
/* ax25_addr.c */
extern ax25_address null_ax25_address;
extern char *ax2asc(char *buf, ax25_address *);
extern void asc2ax(ax25_address *addr, char *callsign);
extern int ax25cmp(ax25_address *, ax25_address *);
extern int ax25digicmp(ax25_digi *, ax25_digi *);
extern unsigned char *ax25_addr_parse(unsigned char *, int, ax25_address *, ax25_address *, ax25_digi *, int *, int *);
extern int ax25_addr_build(unsigned char *, ax25_address *, ax25_address *, ax25_digi *, int, int);
extern int ax25_addr_size(ax25_digi *);
extern void ax25_digi_invert(ax25_digi *, ax25_digi *);
extern char *ax2asc(char *buf, const ax25_address *);
extern void asc2ax(ax25_address *addr, const char *callsign);
extern int ax25cmp(const ax25_address *, const ax25_address *);
extern int ax25digicmp(const ax25_digi *, const ax25_digi *);
extern const unsigned char *ax25_addr_parse(const unsigned char *, int,
ax25_address *, ax25_address *, ax25_digi *, int *, int *);
extern int ax25_addr_build(unsigned char *, const ax25_address *,
const ax25_address *, const ax25_digi *, int, int);
extern int ax25_addr_size(const ax25_digi *);
extern void ax25_digi_invert(const ax25_digi *, ax25_digi *);
/* ax25_dev.c */
extern ax25_dev *ax25_dev_list;

19
net/ax25/ax25_addr.c
View File

@ -39,7 +39,7 @@ EXPORT_SYMBOL(null_ax25_address);
/*
* ax25 -> ascii conversion
*/
char *ax2asc(char *buf, ax25_address *a)
char *ax2asc(char *buf, const ax25_address *a)
{
char c, *s;
int n;
@ -72,7 +72,7 @@ EXPORT_SYMBOL(ax2asc);
/*
* ascii -> ax25 conversion
*/
void asc2ax(ax25_address *addr, char *callsign)
void asc2ax(ax25_address *addr, const char *callsign)
{
char *s;
int n;
@ -107,7 +107,7 @@ EXPORT_SYMBOL(asc2ax);
/*
* Compare two ax.25 addresses
*/
int ax25cmp(ax25_address *a, ax25_address *b)
int ax25cmp(const ax25_address *a, const ax25_address *b)
{
int ct = 0;
@ -128,7 +128,7 @@ EXPORT_SYMBOL(ax25cmp);
/*
* Compare two AX.25 digipeater paths.
*/
int ax25digicmp(ax25_digi *digi1, ax25_digi *digi2)
int ax25digicmp(const ax25_digi *digi1, const ax25_digi *digi2)
{
int i;
@ -149,7 +149,9 @@ int ax25digicmp(ax25_digi *digi1, ax25_digi *digi2)
* Given an AX.25 address pull of to, from, digi list, command/response and the start of data
*
*/
unsigned char *ax25_addr_parse(unsigned char *buf, int len, ax25_address *src, ax25_address *dest, ax25_digi *digi, int *flags, int *dama)
const unsigned char *ax25_addr_parse(const unsigned char *buf, int len,
ax25_address *src, ax25_address *dest, ax25_digi *digi, int *flags,
int *dama)
{
int d = 0;
@ -204,7 +206,8 @@ unsigned char *ax25_addr_parse(unsigned char *buf, int len, ax25_address *src, a
/*
* Assemble an AX.25 header from the bits
*/
int ax25_addr_build(unsigned char *buf, ax25_address *src, ax25_address *dest, ax25_digi *d, int flag, int modulus)
int ax25_addr_build(unsigned char *buf, const ax25_address *src,
const ax25_address *dest, const ax25_digi *d, int flag, int modulus)
{
int len = 0;
int ct = 0;
@ -261,7 +264,7 @@ int ax25_addr_build(unsigned char *buf, ax25_address *src, ax25_address *dest, a
return len;
}
int ax25_addr_size(ax25_digi *dp)
int ax25_addr_size(const ax25_digi *dp)
{
if (dp == NULL)
return 2 * AX25_ADDR_LEN;
@ -272,7 +275,7 @@ int ax25_addr_size(ax25_digi *dp)
/*
* Reverse Digipeat List. May not pass both parameters as same struct
*/
void ax25_digi_invert(ax25_digi *in, ax25_digi *out)
void ax25_digi_invert(const ax25_digi *in, ax25_digi *out)
{
int ct;