remove obsolete and unused gethostbyaddr implementation

this code was already under #if 0, but could be confusing if a reader
didn't notice that, and it's almost surely full of bugs and/or
inconsistencies with the current code that uses the gethostbyname2_r
backend.

diff --git a/src/network/gethostbyname.c b/src/network/gethostbyname.c
index 5088a51..bfedf52 100644 (file)
--- a/src/network/gethostbyname.c
+++ b/src/network/gethostbyname.c
@@ -9,55 +9,3 @@ struct hostent *gethostbyname(const char *name)
 {
        return gethostbyname2(name, AF_INET);
 }
-
-#if 0
-struct hostent *gethostbyname(const char *name)
-{
-       static struct hostent h;
-       static char *h_aliases[3];
-       static char h_canon[256];
-       static char *h_addr_list[10];
-       static char h_addr_data[10][4];
-       static const struct addrinfo hint = {
-               .ai_family = AF_INET, .ai_flags = AI_CANONNAME
-       };
-       struct addrinfo *ai, *p;
-       int i;
-
-       switch (getaddrinfo(name, 0, &hint, &ai)) {
-       case EAI_NONAME:
-               h_errno = HOST_NOT_FOUND;
-               break;
-       case EAI_AGAIN:
-               h_errno = TRY_AGAIN;
-               break;
-       case EAI_FAIL:
-               h_errno = NO_RECOVERY;
-               break;
-       default:
-       case EAI_MEMORY:
-       case EAI_SYSTEM:
-               h_errno = NO_DATA;
-               break;
-       case 0:
-               break;
-       }
-
-       strcpy(h_canon, ai->ai_canonname);
-       h.h_name = h_canon;
-       h.h_aliases = h_aliases;
-       h.h_aliases[0] = h_canon;
-       h.h_aliases[1] = strcmp(h_canon, name) ? (char *)name : 0;
-       h.h_length = 4;
-       h.h_addr_list = h_addr_list;
-       for (i=0, p=ai; i<sizeof h_addr_data/4 && p; i++, p=p->ai_next) {
-               h.h_addr_list[i] = h_addr_data[i];
-               memcpy(h.h_addr_list[i],
-                       &((struct sockaddr_in *)p->ai_addr)->sin_addr, 4);
-       }
-       h.h_addr_list[i] = 0;
-       h.h_addrtype = AF_INET;
-       freeaddrinfo(ai);
-       return &h;
-}
-#endif