From: Felix Fietkau <nbd@openwrt.org>
Date: Thu, 23 Apr 2009 15:06:10 +0000 (+0200)
Subject: don't bail out on locking errors, when flock() is not supported
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=7840d049ef119fe2eb44c9f66f5af233c03f9d9c;p=uci.git

don't bail out on locking errors, when flock() is not supported
---

diff --git a/util.c b/util.c
index 9843058..f0b2094 100644
--- a/util.c
+++ b/util.c
@@ -23,6 +23,7 @@
 #include <unistd.h>
 #include <ctype.h>
 #include <fcntl.h>
+#include <errno.h>
 
 #define LINEBUF	32
 #define LINEBUF_MAX	4096
@@ -453,7 +454,8 @@ static FILE *uci_open_stream(struct uci_context *ctx, const char *filename, int
 	if (fd < 0)
 		goto error;
 
-	if (flock(fd, (write ? LOCK_EX : LOCK_SH)) < 0)
+	ret = flock(fd, (write ? LOCK_EX : LOCK_SH));
+	if ((ret < 0) && (errno != ENOSYS))
 		goto error;
 
 	ret = lseek(fd, 0, pos);