>Number:         22360
>Category:       kern
>Synopsis:       linux ftruncate64() is broken due to bad arg alignment
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Aug 05 10:06:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator:     Ales Krenek
>Release:        NetBSD 1.6.1
>Organization:
Masaryk University
>Environment:
System: NetBSD balkis.ics.muni.cz 1.6.1 NetBSD 1.6.1 (BALKIS) #4: Mon Aug 4 20:59:20 CEST 2003 ljocha@balkis.ics.muni.cz:/usr/src/sys/arch/i386/compile/BALKIS i386
Architecture: i386
Machine: i386
>Description:
The call used to return just EFBIG, apparently because linux does not align the `length' arg to 64b boundary

Most likely the problem also applies to -current, as well as other archs.
>How-To-Repeat:
any linux binary calling ftruncate64()
>Fix:
--- compat/linux/arch/i386/syscalls.master.orig	Mon Aug  4 20:31:41 2003
+++ compat/linux/arch/i386/syscalls.master	Mon Aug  4 20:34:07 2003
@@ -329,7 +329,7 @@
 			    linux_off_t offset); }
 193	STD		{ int linux_sys_truncate64(const char *path, \
 			    off_t length); }
-194	NOARGS		linux_ftruncate64 { int sys_ftruncate(int fd, \
+194	STD		{ int linux_sys_ftruncate64(int fd, \
 			    off_t length); }
 195	STD		{ int linux_sys_stat64(const char *path, \
 			    struct linux_stat64 *sp); }
--- compat/linux/common/linux_file64.c.ljocha	Mon Aug  4 20:17:30 2003
+++ compat/linux/common/linux_file64.c	Mon Aug  4 20:59:02 2003
@@ -231,6 +231,22 @@
 	return sys_truncate(p, uap, retval);
 }
 
+int
+linux_sys_ftruncate64(p, v, retval)
+	struct proc *p;
+	void *v;
+	register_t *retval;
+{
+	struct linux_sys_ftruncate64_args *uap = v;
+	struct sys_ftruncate_args	fta;
+
+	SCARG(&fta,fd) = SCARG(uap,fd);
+	SCARG(&fta,length) = SCARG(uap,length);
+
+	return sys_ftruncate(p,&fta,retval);
+}
+
+
 #if !defined(__m68k__)
 static void bsd_to_linux_flock64 __P((struct linux_flock64 *,
     const struct flock *));
>Release-Note:
>Audit-Trail:
>Unformatted: