X-Git-Url: http://git.samba.org/samba.git/?p=rsync.git;a=blobdiff_plain;f=util.c;h=7d15a8a605c973fbfe0fd264a19421299adcb816;hp=bcbd8c1b83648c940beeacb15a3be05af28e3d77;hb=31593dd6106cfef78fc88cbe9c831a51f00a4aa6;hpb=91eee5946ad6d033303abfe184085c87a283da29

diff --git a/util.c b/util.c
index bcbd8c1b..7d15a8a6 100644
--- a/util.c
+++ b/util.c
@@ -491,12 +491,16 @@ int process_exists(int pid)
 	return(kill(pid,0) == 0 || errno != ESRCH);
 }
 
-int lock_file(int fd)
+/* lock a byte range in a open file */
+int lock_range(int fd, int offset, int len)
 {
-	return flock(fd, LOCK_EX) == 0;
-}
+	struct flock lock;
 
-int unlock_file(int fd)
-{
-	return flock(fd, LOCK_UN) == 0;
+	lock.l_type = F_WRLCK;
+	lock.l_whence = SEEK_SET;
+	lock.l_start = offset;
+	lock.l_len = len;
+	lock.l_pid = 0;
+	
+	return fcntl(fd,F_SETLK,&lock) == 0;
 }