From: Andrew Tridgell <tridge@samba.org>
Date: Fri, 28 Mar 2003 11:59:41 +0000 (+0100)
Subject: cope with systems that don't have realpath()
X-Git-Tag: v2.3~25
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=8e918ccc;p=thirdparty%2Fccache.git

cope with systems that don't have realpath()
---

diff --git a/util.c b/util.c
index ff0c83cb8..d2a920a23 100644
--- a/util.c
+++ b/util.c
@@ -359,8 +359,22 @@ char *x_realpath(const char *path)
 	if (maxlen < 4096) maxlen = 4096;
 	
 	ret = x_malloc(maxlen);
-	
+
+#if HAVE_REALPATH
 	p = realpath(path, ret);
+#else
+	/* yes, there are such systems. This replacement relies on
+	   the fact that when we call x_realpath we only care about symlinks */
+	{
+		int len = readlink(path, ret, maxlen-1);
+		if (len == -1) {
+			free(ret);
+			return NULL;
+		}
+		ret[len] = 0;
+		p = ret;
+	}
+#endif
 	if (p) {
 		p = x_strdup(p);
 		free(ret);