const poisoning

1 files changed, 21 insertions, 16 deletions

diff --git a/src/lib/libc/net/getnameinfo.c b/src/lib/libc/net/getnameinfo.c
index 33e628c623..673ead74ba 100644
--- a/src/lib/libc/net/getnameinfo.c
+++ b/src/lib/libc/net/getnameinfo.c
@@ -1,4 +1,5 @@
-/*      $OpenBSD: getnameinfo.c,v 1.13 2000/04/26 14:46:47 itojun Exp $ */
+/*      $OpenBSD: getnameinfo.c,v 1.14 2000/04/26 16:08:12 itojun Exp $ */
+/*      $KAME: getnameinfo.c,v 1.38 2000/04/26 15:58:50 itojun Exp $    */
 
 /*
  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@@ -85,9 +86,9 @@ struct sockinet {
 };
 
 #ifdef INET6
-static int ip6_parsenumeric __P((const struct sockaddr *, char *, char *,
-                                 int, int));
-static int ip6_sa2str __P((struct sockaddr_in6 *, char *, size_t, int));
+static int ip6_parsenumeric __P((const struct sockaddr *, const char *, char *,
+                                 size_t, int));
+static int ip6_sa2str __P((const struct sockaddr_in6 *, char *, size_t, int));
 #endif 
 
 #define ENI_NOSOCKET    0
@@ -113,7 +114,7 @@ getnameinfo(sa, salen, host, hostlen, serv, servlen, flags)
         struct hostent *hp;
         u_short port;
         int family, i;
-        char *addr;
+        const char *addr;
         u_int32_t v4a;
         int h_error;
         char numserv[512];
@@ -137,8 +138,9 @@ getnameinfo(sa, salen, host, hostlen, serv, servlen, flags)
         if (salen != afd->a_socklen)
                 return ENI_SALEN;
         
-        port = ((struct sockinet *)sa)->si_port; /* network byte order */
-        addr = (char *)sa + afd->a_off;
+        /* network byte order */
+        port = ((const struct sockinet *)sa)->si_port;
+        addr = (const char *)sa + afd->a_off;
 
         if (serv == NULL || servlen == 0) {
                 /*
@@ -169,7 +171,7 @@ getnameinfo(sa, salen, host, hostlen, serv, servlen, flags)
         switch (sa->sa_family) {
         case AF_INET:
                 v4a = (u_int32_t)
-                        ntohl(((struct sockaddr_in *)sa)->sin_addr.s_addr);
+                    ntohl(((const struct sockaddr_in *)sa)->sin_addr.s_addr);
                 if (IN_MULTICAST(v4a) || IN_EXPERIMENTAL(v4a))
                         flags |= NI_NUMERICHOST;
                 v4a >>= IN_CLASSA_NSHIFT;
@@ -179,8 +181,8 @@ getnameinfo(sa, salen, host, hostlen, serv, servlen, flags)
 #ifdef INET6
         case AF_INET6:
             {
-                struct sockaddr_in6 *sin6;
-                sin6 = (struct sockaddr_in6 *)sa;
+                const struct sockaddr_in6 *sin6;
+                sin6 = (const struct sockaddr_in6 *)sa;
                 switch (sin6->sin6_addr.s6_addr[0]) {
                 case 0x00:
                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr))
@@ -249,6 +251,7 @@ getnameinfo(sa, salen, host, hostlen, serv, servlen, flags)
                          * implemented here - see RFC2553 p30
                          */
                         if (flags & NI_NOFQDN) {
+                                char *p;
                                 p = strchr(hp->h_name, '.');
                                 if (p)
                                         *p = '\0';
@@ -289,8 +292,10 @@ getnameinfo(sa, salen, host, hostlen, serv, servlen, flags)
 static int
 ip6_parsenumeric(sa, addr, host, hostlen, flags)
         const struct sockaddr *sa;
-        char *addr, *host;
-        int flags, hostlen;
+        const char *addr;
+        char *host;
+        size_t hostlen;
+        int flags;
 {
         int numaddrlen;
         char numaddr[512];
@@ -305,14 +310,14 @@ ip6_parsenumeric(sa, addr, host, hostlen, flags)
         strcpy(host, numaddr);
 
 #ifdef NI_WITHSCOPEID
-        if (((struct sockaddr_in6 *)sa)->sin6_scope_id) {
+        if (((const struct sockaddr_in6 *)sa)->sin6_scope_id) {
                 if (flags & NI_WITHSCOPEID)
                 {
                         char scopebuf[MAXHOSTNAMELEN];
                         int scopelen;
 
                         /* ip6_sa2str never fails */
-                        scopelen = ip6_sa2str((struct sockaddr_in6 *)sa,
+                        scopelen = ip6_sa2str((const struct sockaddr_in6 *)sa,
                                               scopebuf, sizeof(scopebuf),
                                               0);
                         if (scopelen + 1 + numaddrlen + 1 > hostlen)
@@ -334,13 +339,13 @@ ip6_parsenumeric(sa, addr, host, hostlen, flags)
 /* ARGSUSED */
 static int
 ip6_sa2str(sa6, buf, bufsiz, flags)
-        struct sockaddr_in6 *sa6;
+        const struct sockaddr_in6 *sa6;
         char *buf;
         size_t bufsiz;
         int flags;
 {
         unsigned int ifindex = (unsigned int)sa6->sin6_scope_id;
-        struct in6_addr *a6 = &sa6->sin6_addr;
+        const struct in6_addr *a6 = &sa6->sin6_addr;
 
 #ifdef notyet
         if (flags & NI_NUMERICSCOPE) {