[PATCH 18/31] Make list_length and string_item_to_ipaddr const-correct.

[Ian Jackson]

No functional change.

Signed-off-by: Ian Jackson <ijackson at chiark.greenend.org.uk>
---
 conffile.c |    4 ++--
 ipaddr.c   |    2 +-
 ipaddr.h   |    2 +-
 secnet.h   |    2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/conffile.c b/conffile.c
index ede9c49..24d7e25 100644
--- a/conffile.c
+++ b/conffile.c
@@ -561,10 +561,10 @@ list_t *list_new(void)
     return NULL;
 }
 
-int32_t list_length(list_t *a)
+int32_t list_length(const list_t *a)
 {
     int32_t l=0;
-    list_t *i;
+    const list_t *i;
     for (i=a; i; i=i->next) { assert(l < INT_MAX); l++; }
     return l;
 }
diff --git a/ipaddr.c b/ipaddr.c
index d23317c..09eb80d 100644
--- a/ipaddr.c
+++ b/ipaddr.c
@@ -418,7 +418,7 @@ static struct subnet string_item_to_subnet(item_t *i, cstring_t desc,
     return s;
 }
 
-uint32_t string_item_to_ipaddr(item_t *i, cstring_t desc)
+uint32_t string_item_to_ipaddr(const item_t *i, cstring_t desc)
 {
     uint32_t a, b, c, d;
     int match;
diff --git a/ipaddr.h b/ipaddr.h
index 54f10d4..de41b7d 100644
--- a/ipaddr.h
+++ b/ipaddr.h
@@ -53,6 +53,6 @@ extern string_t subnet_to_string(struct subnet sn);
 extern struct ipset *string_list_to_ipset(list_t *l,struct cloc loc,
 					  cstring_t module, cstring_t param);
 					  
-extern uint32_t string_item_to_ipaddr(item_t *i, cstring_t desc);
+extern uint32_t string_item_to_ipaddr(const item_t *i, cstring_t desc);
 
 #endif /* ipaddr_h */
diff --git a/secnet.h b/secnet.h
index f83d14a..7935709 100644
--- a/secnet.h
+++ b/secnet.h
@@ -112,7 +112,7 @@ extern cstring_t *dict_keys(dict_t *dict);
 
 /* List-manipulation functions */
 extern list_t *list_new(void);
-extern int32_t list_length(list_t *a);
+extern int32_t list_length(const list_t *a);
 extern list_t *list_append(list_t *a, item_t *i);
 extern list_t *list_append_list(list_t *a, list_t *b);
 /* Returns an item from the list (index starts at 0), or NULL */
-- 
1.7.10.4