Add patches to fix two annoying crashes, from Aaron Stellman.

ok sthen

net/btpd/Makefile

@@ -1,9 +1,9 @@
-# $OpenBSD: Makefile,v 1.7 2009/12/31 21:33:42 nicm Exp $
+# $OpenBSD: Makefile,v 1.8 2010/01/11 22:53:35 nicm Exp $
 
 COMMENT=		BitTorrent Protocol Daemon
 
 DISTNAME=		btpd-0.15
-PKGNAME=		${DISTNAME}p0
+PKGNAME=		${DISTNAME}p1
 CATEGORIES=		net
 
 MAINTAINER=		Nicholas Marriott <nicm@openbsd.org>

net/btpd/patches/patch-btpd_addrinfo_c

@@ -0,0 +1,12 @@
+$OpenBSD: patch-btpd_addrinfo_c,v 1.1 2010/01/11 22:53:35 nicm Exp $
+--- btpd/addrinfo.c.orig	Wed Dec 23 18:45:51 2009
++++ btpd/addrinfo.c	Wed Dec 23 18:45:54 2009
+@@ -52,7 +52,7 @@ addrinfo_td_cb(void *arg)
+     struct ai_ctx *ctx = arg;
+     if (!ctx->cancel)
+         ctx->cb(ctx->arg, ctx->error, ctx->res);
+-    else if (ctx->error != 0)
++    else if (ctx->res != NULL)
+         freeaddrinfo(ctx->res);
+     free(ctx);
+ }

net/btpd/patches/patch-misc_http_client_c

@@ -0,0 +1,25 @@
+$OpenBSD: patch-misc_http_client_c,v 1.1 2010/01/11 22:53:35 nicm Exp $
+--- misc/http_client.c.orig	Mon Jan 12 14:43:18 2009
++++ misc/http_client.c	Tue Dec 22 23:19:29 2009
+@@ -230,6 +230,12 @@ again:
+             else
+                 goto error;
+         }
++
++        /* req->rbuf.buf may be reallocated inside iobuf_write()
++         * so we should calculate the offset before that happens
++         */
++        size_t consumed = end - (char *)req->rbuf.buf + dlen;
++
+         if (!iobuf_write(&req->rbuf, "", 1))
+             goto error;
+         req->rbuf.off--;
+@@ -237,7 +243,7 @@ again:
+             goto error;
+         if (req->cancel)
+             goto cancel;
+-        iobuf_consumed(&req->rbuf, end - (char *)req->rbuf.buf + dlen);
++        iobuf_consumed(&req->rbuf, consumed);
+         goto again;
+     case PS_CHUNK_SIZE:
+         assert(req->chunked);