t9pfuse: "fix" O_LARGEFILE on x86_64 linux (sqweek) - plan9port - [fork] Plan 9 from user space
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---
(DIR) commit 7dc6d2444c7d20d0413c247b1b67aee4504248ac
(DIR) parent 55d98d64b8352383ba4653f4baf5dc109e434ca2
(HTM) Author: Russ Cox <rsc@swtch.com>
Date: Thu, 19 Jun 2008 18:56:56 -0400
9pfuse: "fix" O_LARGEFILE on x86_64 linux (sqweek)
Diffstat:
M src/cmd/9pfuse/main.c | 19 ++++++++++++++-----
1 file changed, 14 insertions(+), 5 deletions(-)
---
(DIR) diff --git a/src/cmd/9pfuse/main.c b/src/cmd/9pfuse/main.c
t@@ -24,11 +24,20 @@
#endif
#ifndef O_LARGEFILE
-# if defined(__linux__)
-# define O_LARGEFILE 0100000 /* Sigh */
-# else
-# define O_LARGEFILE 0
-# endif
+# define O_LARGEFILE 0
+#endif
+
+/*
+ * Work around glibc's broken <bits/fcntl.h> which defines
+ * O_LARGEFILE to 0 on 64 bit architectures. But, on those same
+ * architectures, linux _forces_ O_LARGEFILE (which is always
+ * 0100000 in the kernel) at each file open. FUSE is all too
+ * happy to pass the flag onto us, where we'd have no idea what
+ * to do with it if we trusted glibc.
+ */
+#if defined(__linux__)
+# undef O_LARGEFILE
+# define O_LARGEFILE 0100000
#endif
#ifndef O_CLOEXEC