@@ -163,9 +163,18 @@
# define F_GETOWN 5 /* Get owner (receiver of SIGIO). */
# define F_SETOWN 6 /* Set owner (receiver of SIGIO). */
#endif
-#define F_GETLK 7 /* Get record locking info. */
-#define F_SETLK 8 /* Set record locking info (non-blocking). */
-#define F_SETLKW 9 /* Set record locking info (blocking). */
+#ifdef __USE_FILE_OFFSET64
+# define F_GETLK F_GETLK64
+# define F_SETLK F_SETLK64
+# define F_SETLKW F_SETLKW64
+#else
+# define F_GETLK 7 /* Get record locking info. */
+# define F_SETLK 8 /* Set record locking info (non-blocking). */
+# define F_SETLKW 9 /* Set record locking info (blocking). */
+#endif
+#define F_GETLK64 10 /* Get record locking info. */
+#define F_SETLK64 11 /* Set record locking info (non-blocking). */
+#define F_SETLKW64 12 /* Set record locking info (blocking). */
#ifdef __USE_XOPEN2K8
# define F_DUPFD_CLOEXEC 1030 /* Duplicate, set FD_CLOEXEC on new one. */
new file mode 100644
@@ -0,0 +1,68 @@
+/* Copyright (C) 2014-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sys/types.h>
+#include <sys/file.h>
+#include <fcntl.h>
+#include <errno.h>
+
+/* XXX
+ We need new RPCs to support POSIX.1 fcntl file locking!!
+ For the time being we support the whole-file case only,
+ with all kinds of WRONG WRONG WRONG semantics,
+ by using flock. This is definitely the Wrong Thing,
+ but it might be better than nothing (?). */
+int
+__f_setlk (int fd, int type, int whence, __off64_t start, __off64_t len, int wait)
+{
+ int cmd;
+
+ switch (type)
+ {
+ case F_RDLCK: cmd |= LOCK_SH; break;
+ case F_WRLCK: cmd |= LOCK_EX; break;
+ case F_UNLCK: cmd = LOCK_UN; break;
+ default:
+ errno = EINVAL;
+ return -1;
+ }
+
+ if (wait == 0)
+ cmd |= LOCK_NB;
+
+ switch (whence)
+ {
+ case SEEK_SET:
+ if (start == 0 && len == 0) /* Whole file request. */
+ break;
+ /* It seems to be common for applications to lock the first
+ byte of the file when they are really doing whole-file locking.
+ So, since it's so wrong already, might as well do that too. */
+ if (start == 0 && len == 1)
+ break;
+ /* FALLTHROUGH */
+ case SEEK_CUR:
+ case SEEK_END:
+ errno = ENOTSUP;
+ return -1;
+ default:
+ errno = EINVAL;
+ return -1;
+ }
+
+ return __flock (fd, cmd);
+}
new file mode 100644
@@ -0,0 +1,22 @@
+/* Copyright (C) 2014-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _F_SETLK_H
+#define _F_SETLK_H 1
+
+extern int __f_setlk (int fd, int type, int whence, __off64_t start, __off64_t len, int wait);
+#endif /* f_setlk.h */
@@ -21,6 +21,7 @@
#include <hurd/fd.h>
#include <stdarg.h>
#include <sys/file.h> /* XXX for LOCK_* */
+#include "f_setlk.h"
/* Perform file control operations on FD. */
int
@@ -128,56 +129,48 @@ __libc_fcntl (int fd, int cmd, ...)
case F_SETLK:
case F_SETLKW:
{
- /* XXX
- We need new RPCs to support POSIX.1 fcntl file locking!!
- For the time being we support the whole-file case only,
- with all kinds of WRONG WRONG WRONG semantics,
- by using flock. This is definitely the Wrong Thing,
- but it might be better than nothing (?). */
struct flock *fl = va_arg (ap, struct flock *);
+ int wait = 0;
va_end (ap);
switch (cmd)
{
case F_GETLK:
errno = ENOSYS;
return -1;
+ case F_SETLKW:
+ wait = 1;
+ /* FALLTHROUGH */
case F_SETLK:
- cmd = LOCK_NB;
- break;
- default:
- cmd = 0;
- break;
- }
- switch (fl->l_type)
- {
- case F_RDLCK: cmd |= LOCK_SH; break;
- case F_WRLCK: cmd |= LOCK_EX; break;
- case F_UNLCK: cmd |= LOCK_UN; break;
+ return __f_setlk (fd, fl->l_type, fl->l_whence,
+ fl->l_start, fl->l_end, wait);
default:
errno = EINVAL;
return -1;
}
- switch (fl->l_whence)
+ }
+
+ case F_GETLK64:
+ case F_SETLK64:
+ case F_SETLKW64:
+ {
+ struct flock64 *fl64 = va_arg (ap, struct flock64 *);
+ int wait = 0;
+ va_end (ap);
+ switch (cmd)
{
- case SEEK_SET:
- if (fl->l_start == 0 && fl->l_len == 0) /* Whole file request. */
- break;
- /* It seems to be common for applications to lock the first
- byte of the file when they are really doing whole-file locking.
- So, since it's so wrong already, might as well do that too. */
- if (fl->l_start == 0 && fl->l_len == 1)
- break;
- /* FALLTHROUGH */
- case SEEK_CUR:
- case SEEK_END:
- errno = ENOTSUP;
+ case F_GETLK64:
+ errno = ENOSYS;
return -1;
+ case F_SETLK64:
+ wait = 1;
+ /* FALLTHROUGH */
+ case F_SETLKW64:
+ return __f_setlk (fd, fl->l_type, fl->l_whence,
+ fl->l_start, fl->l_end, wait);
default:
errno = EINVAL;
return -1;
}
-
- return __flock (fd, cmd);
}
case F_GETFL: /* Get per-open flags. */