Author: kib
Date: Sun Dec 27 00:42:13 2015
New Revision: 292762
URL: https://svnweb.freebsd.org/changeset/base/292762

Log:
  MFC r292510:
  Fix lockf(3) cancellation behaviour.

Modified:
  stable/10/lib/libc/gen/lockf.c
Directory Properties:
  stable/10/   (props changed)

Modified: stable/10/lib/libc/gen/lockf.c
==============================================================================
--- stable/10/lib/libc/gen/lockf.c      Sun Dec 27 00:38:57 2015        
(r292761)
+++ stable/10/lib/libc/gen/lockf.c      Sun Dec 27 00:42:13 2015        
(r292762)
@@ -36,6 +36,7 @@ __FBSDID("$FreeBSD$");
 #include <fcntl.h>
 #include <unistd.h>
 #include "un-namespace.h"
+#include "libc_private.h"
 
 int
 lockf(int filedes, int function, off_t size)
@@ -62,9 +63,12 @@ lockf(int filedes, int function, off_t s
                break;
        case F_TEST:
                fl.l_type = F_WRLCK;
-               if (_fcntl(filedes, F_GETLK, &fl) == -1)
+               if (((int (*)(int, int, ...))
+                   __libc_interposing[INTERPOS_fcntl])(filedes, F_GETLK, &fl)
+                   == -1)
                        return (-1);
-               if (fl.l_type == F_UNLCK || (fl.l_sysid == 0 && fl.l_pid == 
getpid()))
+               if (fl.l_type == F_UNLCK || (fl.l_sysid == 0 &&
+                   fl.l_pid == getpid()))
                        return (0);
                errno = EAGAIN;
                return (-1);
@@ -75,5 +79,6 @@ lockf(int filedes, int function, off_t s
                /* NOTREACHED */
        }
 
-       return (_fcntl(filedes, cmd, &fl));
+       return (((int (*)(int, int, ...))
+           __libc_interposing[INTERPOS_fcntl])(filedes, cmd, &fl));
 }
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