From 7052f7f510a90d1cce53bb1541ef99d092033503 Mon Sep 17 00:00:00 2001
From: "Eric S. Raymond" <esr@thyrsus.com>
Date: Fri, 19 Sep 1997 23:10:18 +0000
Subject: Alexander Kourakos's patch to improve rewriting.

svn path=/trunk/; revision=1376
---
 NEWS     |  1 +
 rfc822.c | 40 +++++++++++++++++++++++++++-------------
 2 files changed, 28 insertions(+), 13 deletions(-)

diff --git a/NEWS b/NEWS
index a449b069..0b906115 100644
--- a/NEWS
+++ b/NEWS
@@ -18,6 +18,7 @@
 fetchmail-4.2.4 (Thu Sep 18 16:19:10 EDT 1997)
 * Small compilation cleanups, thanks to Florian laRoche.
 * Removed the length consistency check, it mysteriously fails under POP3.
+* Added Alexander Kourakos's patch to improve address rewriting.
 
 fetchmail-4.2.3 (Thu Sep 18 16:19:10 EDT 1997)
 * Fix a bug in IMAP message-size retrieval.
diff --git a/rfc822.c b/rfc822.c
index b6103c8c..5e9e2da5 100644
--- a/rfc822.c
+++ b/rfc822.c
@@ -74,11 +74,14 @@ const char *host;	/* server hostname */
 		 * an obscure misfeature described in sections
 		 * 6.1, 6.2.6, and A.1.5 of the RFC822 standard.
 		 */
-		else if ((*from == ',' || HEADER_END(from)) && has_bare_name_part && !has_host_part && from[-1] != ';')
+		else if ((*from == ',' || HEADER_END(from) || from[1] == '(')
+			 && has_bare_name_part
+			 && !has_host_part
+			 && from[-1] != ';')
 		{
 		    int hostlen;
 
-		    while (isspace(*from))
+		    while (isspace(*from) || (*from == ','))
 			--from;
 		    from++;
 		    hostlen = strlen(host);
@@ -86,7 +89,7 @@ const char *host;	/* server hostname */
 			cp[hostlen+1] = *cp;
 		    *from++ = '@';
 		    memcpy(from, host, hostlen);
-		    from += strlen(from);
+		    from += hostlen;
 		    has_host_part = TRUE;
 		} 
 		else if (!isspace(*from))
@@ -101,20 +104,31 @@ const char *host;	/* server hostname */
 	    case 3:	/* we're in a <>-enclosed address */
 		if (*from == '@')
 		    has_host_part = TRUE;
-		else if (*from == '>' && !has_host_part)
+		else if (*from == '>')
 		{
-		    int hostlen;
-
-		    hostlen = strlen(host);
-		    for (cp = from + strlen(from); cp >= from; --cp)
-			cp[hostlen+1] = *cp;
-		    *from++ = '@';
-		    memcpy(from, host, hostlen);
-		    from += strlen(from);
-		    has_host_part = TRUE;
+		    state = 1;
+		    if (!has_host_part)
+		    {
+			int hostlen;
+
+			hostlen = strlen(host);
+			for (cp = from + strlen(from); cp >= from; --cp)
+			    cp[hostlen+1] = *cp;
+			*from++ = '@';
+			memcpy(from, host, hostlen);
+			from += hostlen;
+			has_host_part = TRUE;
+		    }
 		}
 		break;
 	    }
+
+	/*
+	 * If we passed a comma, reset everything.
+	 */
+	if (from[-1] == ',' && !parendepth) {
+	  has_host_part = has_bare_name_part = FALSE;
+	}
     }
 }
 
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