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lib: make string arguments const

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For lookup routines, make arguments const where possible.
This commit is contained in:
Stephen Hemminger 2013-02-12 11:39:07 -08:00
parent d1f28cf181
commit 46ac8a5550
5 changed files with 42 additions and 43 deletions
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33
include/rt_names.h
View File

@ -3,29 +3,30 @@
#include <asm/types.h>
char* rtnl_rtprot_n2a(int id, char *buf, int len);
char* rtnl_rtscope_n2a(int id, char *buf, int len);
char* rtnl_rttable_n2a(__u32 id, char *buf, int len);
char* rtnl_rtrealm_n2a(int id, char *buf, int len);
char* rtnl_dsfield_n2a(int id, char *buf, int len);
int rtnl_rtprot_a2n(__u32 *id, char *arg);
int rtnl_rtscope_a2n(__u32 *id, char *arg);
int rtnl_rttable_a2n(__u32 *id, char *arg);
int rtnl_rtrealm_a2n(__u32 *id, char *arg);
int rtnl_dsfield_a2n(__u32 *id, char *arg);
int rtnl_group_a2n(int *id, char *arg);
const char *rtnl_rtprot_n2a(int id, char *buf, int len);
const char *rtnl_rtscope_n2a(int id, char *buf, int len);
const char *rtnl_rttable_n2a(__u32 id, char *buf, int len);
const char *rtnl_rtrealm_n2a(int id, char *buf, int len);
const char *rtnl_dsfield_n2a(int id, char *buf, int len);
int rtnl_rtprot_a2n(__u32 *id, const char *arg);
int rtnl_rtscope_a2n(__u32 *id, const char *arg);
int rtnl_rttable_a2n(__u32 *id, const char *arg);
int rtnl_rtrealm_a2n(__u32 *id, const char *arg);
int rtnl_dsfield_a2n(__u32 *id, const char *arg);
int rtnl_group_a2n(int *id, const char *arg);
const char *inet_proto_n2a(int proto, char *buf, int len);
int inet_proto_a2n(char *buf);
int inet_proto_a2n(const char *buf);
const char * ll_type_n2a(int type, char *buf, int len);
const char *ll_addr_n2a(unsigned char *addr, int alen, int type, char *buf, int blen);
int ll_addr_a2n(char *lladdr, int len, char *arg);
const char *ll_addr_n2a(unsigned char *addr, int alen,
int type, char *buf, int blen);
int ll_addr_a2n(char *lladdr, int len, const char *arg);
const char * ll_proto_n2a(unsigned short id, char *buf, int len);
int ll_proto_a2n(unsigned short *id, char *buf);
int ll_proto_a2n(unsigned short *id, const char *buf);
#endif

5
lib/inet_proto.c
View File

@ -20,9 +20,10 @@
#include <netdb.h>
#include <string.h>
#include "rt_names.h"
#include "utils.h"
char *inet_proto_n2a(int proto, char *buf, int len)
const char *inet_proto_n2a(int proto, char *buf, int len)
{
static char ncache[16];
static int icache = -1;
@ -42,7 +43,7 @@ char *inet_proto_n2a(int proto, char *buf, int len)
return buf;
}
int inet_proto_a2n(char *buf)
int inet_proto_a2n(const char *buf)
{
static char ncache[16];
static int icache = -1;

2
lib/ll_addr.c
View File

@ -57,7 +57,7 @@ const char *ll_addr_n2a(unsigned char *addr, int alen, int type, char *buf, int
}
/*NB: lladdr is char * (rather than u8 *) because sa_data is char * (1003.1g) */
int ll_addr_a2n(char *lladdr, int len, char *arg)
int ll_addr_a2n(char *lladdr, int len, const char *arg)
{
if (strchr(arg, '.')) {
inet_prefix pfx;

4
lib/ll_proto.c
View File

@ -100,10 +100,10 @@ const char * ll_proto_n2a(unsigned short id, char *buf, int len)
return buf;
}
int ll_proto_a2n(unsigned short *id, char *buf)
int ll_proto_a2n(unsigned short *id, const char *buf)
{
int i;
for (i=0; i<sizeof(llproto_names)/sizeof(llproto_names[0]); i++) {
for (i=0; i < sizeof(llproto_names)/sizeof(llproto_names[0]); i++) {
if (strcasecmp(llproto_names[i].name, buf) == 0) {
*id = htons(llproto_names[i].id);
return 0;

41
lib/rt_names.c
View File

@ -29,12 +29,12 @@
struct rtnl_hash_entry {
struct rtnl_hash_entry *next;
char * name;
const char * name;
unsigned int id;
};
static void
rtnl_hash_initialize(char *file, struct rtnl_hash_entry **hash, int size)
rtnl_hash_initialize(const char *file, struct rtnl_hash_entry **hash, int size)
{
struct rtnl_hash_entry *entry;
char buf[512];
@ -73,7 +73,7 @@ rtnl_hash_initialize(char *file, struct rtnl_hash_entry **hash, int size)
fclose(fp);
}
static void rtnl_tab_initialize(char *file, char **tab, int size)
static void rtnl_tab_initialize(const char *file, char **tab, int size)
{
char buf[512];
FILE *fp;
@ -127,7 +127,6 @@ static char * rtnl_rtprot_tab[256] = {
};
static int rtnl_rtprot_init;
static void rtnl_rtprot_initialize(void)
@ -137,10 +136,10 @@ static void rtnl_rtprot_initialize(void)
rtnl_rtprot_tab, 256);
}
char * rtnl_rtprot_n2a(int id, char *buf, int len)
const char * rtnl_rtprot_n2a(int id, char *buf, int len)
{
if (id<0 || id>=256) {
snprintf(buf, len, "%d", id);
snprintf(buf, len, "%u", id);
return buf;
}
if (!rtnl_rtprot_tab[id]) {
@ -149,11 +148,11 @@ char * rtnl_rtprot_n2a(int id, char *buf, int len)
}
if (rtnl_rtprot_tab[id])
return rtnl_rtprot_tab[id];
snprintf(buf, len, "%d", id);
snprintf(buf, len, "%u", id);
return buf;
}
int rtnl_rtprot_a2n(__u32 *id, char *arg)
int rtnl_rtprot_a2n(__u32 *id, const char *arg)
{
static char *cache = NULL;
static unsigned long res;
@ -186,7 +185,6 @@ int rtnl_rtprot_a2n(__u32 *id, char *arg)
}
static char * rtnl_rtscope_tab[256] = {
"global",
};
@ -204,7 +202,7 @@ static void rtnl_rtscope_initialize(void)
rtnl_rtscope_tab, 256);
}
char * rtnl_rtscope_n2a(int id, char *buf, int len)
const char *rtnl_rtscope_n2a(int id, char *buf, int len)
{
if (id<0 || id>=256) {
snprintf(buf, len, "%d", id);
@ -220,9 +218,9 @@ char * rtnl_rtscope_n2a(int id, char *buf, int len)
return buf;
}
int rtnl_rtscope_a2n(__u32 *id, char *arg)
int rtnl_rtscope_a2n(__u32 *id, const char *arg)
{
static char *cache = NULL;
static const char *cache = NULL;
static unsigned long res;
char *end;
int i;
@ -253,7 +251,6 @@ int rtnl_rtscope_a2n(__u32 *id, char *arg)
}
static char * rtnl_rtrealm_tab[256] = {
"unknown",
};
@ -267,7 +264,7 @@ static void rtnl_rtrealm_initialize(void)
rtnl_rtrealm_tab, 256);
}
char * rtnl_rtrealm_n2a(int id, char *buf, int len)
const char *rtnl_rtrealm_n2a(int id, char *buf, int len)
{
if (id<0 || id>=256) {
snprintf(buf, len, "%d", id);
@ -284,7 +281,7 @@ char * rtnl_rtrealm_n2a(int id, char *buf, int len)
}
int rtnl_rtrealm_a2n(__u32 *id, char *arg)
int rtnl_rtrealm_a2n(__u32 *id, const char *arg)
{
static char *cache = NULL;
static unsigned long res;
@ -336,7 +333,7 @@ static void rtnl_rttable_initialize(void)
rtnl_rttable_hash, 256);
}
char * rtnl_rttable_n2a(__u32 id, char *buf, int len)
const char * rtnl_rttable_n2a(__u32 id, char *buf, int len)
{
struct rtnl_hash_entry *entry;
@ -355,9 +352,9 @@ char * rtnl_rttable_n2a(__u32 id, char *buf, int len)
return buf;
}
int rtnl_rttable_a2n(__u32 *id, char *arg)
int rtnl_rttable_a2n(__u32 *id, const char *arg)
{
static char *cache = NULL;
static const char *cache = NULL;
static unsigned long res;
struct rtnl_hash_entry *entry;
char *end;
@ -404,7 +401,7 @@ static void rtnl_rtdsfield_initialize(void)
rtnl_rtdsfield_tab, 256);
}
char * rtnl_dsfield_n2a(int id, char *buf, int len)
const char *rtnl_dsfield_n2a(int id, char *buf, int len)
{
if (id<0 || id>=256) {
snprintf(buf, len, "%d", id);
@ -421,7 +418,7 @@ char * rtnl_dsfield_n2a(int id, char *buf, int len)
}
int rtnl_dsfield_a2n(__u32 *id, char *arg)
int rtnl_dsfield_a2n(__u32 *id, const char *arg)
{
static char *cache = NULL;
static unsigned long res;
@ -469,9 +466,9 @@ static void rtnl_group_initialize(void)
rtnl_group_hash, 256);
}
int rtnl_group_a2n(int *id, char *arg)
int rtnl_group_a2n(int *id, const char *arg)
{
static char *cache = NULL;
static const char *cache = NULL;
static unsigned long res;
struct rtnl_hash_entry *entry;
char *end;