From 33fe28bbcd11edf0ea8510788ce9d9670baf49fc Mon Sep 17 00:00:00 2001
From: Tim Kientzle <kientzle@FreeBSD.org>
Date: Sun, 26 Jul 2009 18:11:44 +0000
Subject: [PATCH] The parser for Rockridge symlinks tended to insert extra
 slashes at the beginning of absolute targets.

Thanks to Jung-uk Kim for pointing this out to me.

Approved by:	re (kib)
---
 .../archive_read_support_format_iso9660.c        | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/lib/libarchive/archive_read_support_format_iso9660.c b/lib/libarchive/archive_read_support_format_iso9660.c
index 0ab5cae7067..eaa0f897c7b 100644
--- a/lib/libarchive/archive_read_support_format_iso9660.c
+++ b/lib/libarchive/archive_read_support_format_iso9660.c
@@ -1175,12 +1175,12 @@ static void
 parse_rockridge_SL1(struct file_info *file, const unsigned char *data,
     int data_length)
 {
-	int component_continues = 1;
+	const char *separator = "";
 
-	if (!file->symlink_continues)
+	if (!file->symlink_continues || file->symlink.length < 1)
 		archive_string_empty(&file->symlink);
-	else
-		archive_strcat(&file->symlink, "/");
+	else if (file->symlink.s[file->symlink.length - 1] != '/')
+		separator = "/";
 	file->symlink_continues = 0;
 
 	/*
@@ -1217,9 +1217,8 @@ parse_rockridge_SL1(struct file_info *file, const unsigned char *data,
 		unsigned char nlen = *data++;
 		data_length -= 2;
 
-		if (!component_continues)
-			archive_strcat(&file->symlink, "/");
-		component_continues = 0;
+		archive_strcat(&file->symlink, separator);
+		separator = "/";
 
 		switch(flag) {
 		case 0: /* Usual case, this is text. */
@@ -1233,7 +1232,7 @@ parse_rockridge_SL1(struct file_info *file, const unsigned char *data,
 				return;
 			archive_strncat(&file->symlink,
 			    (const char *)data, nlen);
-			component_continues = 1;
+			separator = "";
 			break;
 		case 0x02: /* Current dir. */
 			archive_strcat(&file->symlink, ".");
@@ -1244,6 +1243,7 @@ parse_rockridge_SL1(struct file_info *file, const unsigned char *data,
 		case 0x08: /* Root of filesystem. */
 			archive_string_empty(&file->symlink);
 			archive_strcat(&file->symlink, "/");
+			separator = "";
 			break;
 		case 0x10: /* Undefined (historically "volume root" */
 			archive_string_empty(&file->symlink);