win32.c: rb_w32_inet_ntop should be const

* win32/win32.c (rb_w32_inet_ntop): type should be const.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36566 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,7 @@
+Sun Jul 29 23:56:49 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/win32.c (rb_w32_inet_ntop): type should be const.
+
 Sun Jul 29 14:20:34 2012  Kazuki Tsujimoto  <kazuki@callcc.net>
 
 	* thread.c (Init_Thread): does not need to set klass

ext/socket/option.c

@@ -437,7 +437,7 @@ inspect_timeval_as_interval(int level, int optname, VALUE data, VALUE ret)
  */
 
 #ifndef HAVE_INET_NTOP
-static char *
+static const char *
 inet_ntop(int af, const void *addr, char *numaddr, size_t numaddr_len)
 {
 #ifdef HAVE_INET_NTOA

include/ruby/win32.h

@@ -266,7 +266,7 @@ extern int    rb_w32_urename(const char *, const char *);
 extern char **rb_w32_get_environ(void);
 extern void   rb_w32_free_environ(char **);
 extern int    rb_w32_map_errno(DWORD);
-extern char * WSAAPI rb_w32_inet_ntop(int,const void *,char *,size_t);
+extern const char *WSAAPI rb_w32_inet_ntop(int,const void *,char *,size_t);
 extern DWORD  rb_w32_osver(void);
 
 extern int chown(const char *, int, int);

win32/win32.c

@@ -6532,7 +6532,7 @@ signbit(double x)
 #endif
 
 /* License: Ruby's */
-char * WSAAPI
+const char * WSAAPI
 rb_w32_inet_ntop(int af, const void *addr, char *numaddr, size_t numaddr_len)
 {
     typedef char *(WSAAPI inet_ntop_t)(int, void *, char *, size_t);