Use a wrapper for the link syscall that does name translations.

PR: 12749
Submitted by: Boris Nikolaus <boris@cs.tu-berlin.de>

sys/alpha/linux/syscalls.master

@@ -1,4 +1,4 @@
-	$Id: syscalls.master,v 1.16 1998/12/30 20:58:28 sos Exp $
+	$Id: syscalls.master,v 1.17 1999/08/11 13:29:48 marcel Exp $
 
 ;	@(#)syscalls.master	8.1 (Berkeley) 7/19/93
 ; System call name/number master file (or rather, slave, from LINUX).
@@ -40,7 +40,7 @@
 6	NOPROTO	LINUX	{ int close(int fd); }
 7	STD	LINUX	{ int linux_waitpid(int pid, int *status, int options);}
 8	STD	LINUX	{ int linux_creat(char *path, int mode); }
-9	NOPROTO	LINUX	{ int link(char *path, char *link); }
+9	STD	LINUX	{ int linux_link(char *path, char *to); }
 10	STD	LINUX	{ int linux_unlink(char *path); }
 11	STD	LINUX	{ int linux_execve(char *path, char **argp, char **envp); }
 12	STD	LINUX	{ int linux_chdir(char *path); }

sys/compat/linux/linux_file.c

@@ -25,7 +25,7 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
- *  $Id: linux_file.c,v 1.26 1999/05/11 19:54:19 phk Exp $
+ *  $Id: linux_file.c,v 1.27 1999/07/18 14:31:01 phk Exp $
  */
 
 #include "opt_compat.h"
@@ -827,3 +827,22 @@ linux_truncate(struct proc *p, struct linux_truncate_args *args)
 	return truncate(p, &bsd);
 }
 
+int
+linux_link(struct proc *p, struct linux_link_args *args)
+{
+    struct link_args bsd;
+    caddr_t sg;
+
+    sg = stackgap_init();
+    CHECKALTEXIST(p, &sg, args->path);
+    CHECKALTCREAT(p, &sg, args->to);
+
+#ifdef DEBUG
+    printf("Linux-emul(%d): link(%s, %s)\n", p->p_pid, args->path, args->to);
+#endif
+
+    bsd.path = args->path;
+    bsd.link = args->to;
+
+    return link(p, &bsd);
+}

sys/i386/linux/linux_file.c

@@ -25,7 +25,7 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
- *  $Id: linux_file.c,v 1.26 1999/05/11 19:54:19 phk Exp $
+ *  $Id: linux_file.c,v 1.27 1999/07/18 14:31:01 phk Exp $
  */
 
 #include "opt_compat.h"
@@ -827,3 +827,22 @@ linux_truncate(struct proc *p, struct linux_truncate_args *args)
 	return truncate(p, &bsd);
 }
 
+int
+linux_link(struct proc *p, struct linux_link_args *args)
+{
+    struct link_args bsd;
+    caddr_t sg;
+
+    sg = stackgap_init();
+    CHECKALTEXIST(p, &sg, args->path);
+    CHECKALTCREAT(p, &sg, args->to);
+
+#ifdef DEBUG
+    printf("Linux-emul(%d): link(%s, %s)\n", p->p_pid, args->path, args->to);
+#endif
+
+    bsd.path = args->path;
+    bsd.link = args->to;
+
+    return link(p, &bsd);
+}

sys/i386/linux/linux_proto.h

@@ -2,7 +2,7 @@
  * System call prototypes.
  *
  * DO NOT EDIT-- this file is automatically generated.
- * created from	Id: syscalls.master,v 1.17 1999/08/11 13:29:48 marcel Exp 
+ * created from	Id: syscalls.master,v 1.18 1999/08/12 19:51:03 marcel Exp 
  */
 
 #ifndef _LINUX_SYSPROTO_H_
@@ -35,6 +35,10 @@ struct	linux_creat_args {
 	char *	path;	char path_[PAD_(char *)];
 	int	mode;	char mode_[PAD_(int)];
 };
+struct	linux_link_args {
+	char *	path;	char path_[PAD_(char *)];
+	char *	to;	char to_[PAD_(char *)];
+};
 struct	linux_unlink_args {
 	char *	path;	char path_[PAD_(char *)];
 };
@@ -400,6 +404,7 @@ int	linux_fork __P((struct proc *, struct linux_fork_args *));
 int	linux_open __P((struct proc *, struct linux_open_args *));
 int	linux_waitpid __P((struct proc *, struct linux_waitpid_args *));
 int	linux_creat __P((struct proc *, struct linux_creat_args *));
+int	linux_link __P((struct proc *, struct linux_link_args *));
 int	linux_unlink __P((struct proc *, struct linux_unlink_args *));
 int	linux_execve __P((struct proc *, struct linux_execve_args *));
 int	linux_chdir __P((struct proc *, struct linux_chdir_args *));

sys/i386/linux/linux_syscall.h

@@ -2,7 +2,7 @@
  * System call numbers.
  *
  * DO NOT EDIT-- this file is automatically generated.
- * created from	Id: syscalls.master,v 1.17 1999/08/11 13:29:48 marcel Exp 
+ * created from	Id: syscalls.master,v 1.18 1999/08/12 19:51:03 marcel Exp 
  */
 
 #define	LINUX_SYS_linux_setup	0
@@ -14,7 +14,7 @@
 #define	LINUX_SYS_close	6
 #define	LINUX_SYS_linux_waitpid	7
 #define	LINUX_SYS_linux_creat	8
-#define	LINUX_SYS_link	9
+#define	LINUX_SYS_linux_link	9
 #define	LINUX_SYS_linux_unlink	10
 #define	LINUX_SYS_linux_execve	11
 #define	LINUX_SYS_linux_chdir	12

sys/i386/linux/linux_sysent.c

@@ -2,7 +2,7 @@
  * System call switch table.
  *
  * DO NOT EDIT-- this file is automatically generated.
- * created from	Id: syscalls.master,v 1.17 1999/08/11 13:29:48 marcel Exp 
+ * created from	Id: syscalls.master,v 1.18 1999/08/12 19:51:03 marcel Exp 
  */
 
 #include "opt_compat.h"
@@ -23,7 +23,7 @@ struct sysent linux_sysent[] = {
 	{ 1, (sy_call_t *)close },			/* 6 = close */
 	{ 3, (sy_call_t *)linux_waitpid },		/* 7 = linux_waitpid */
 	{ 2, (sy_call_t *)linux_creat },		/* 8 = linux_creat */
-	{ 2, (sy_call_t *)link },			/* 9 = link */
+	{ 2, (sy_call_t *)linux_link },			/* 9 = linux_link */
 	{ 1, (sy_call_t *)linux_unlink },		/* 10 = linux_unlink */
 	{ 3, (sy_call_t *)linux_execve },		/* 11 = linux_execve */
 	{ 1, (sy_call_t *)linux_chdir },		/* 12 = linux_chdir */

sys/i386/linux/syscalls.master

@@ -1,4 +1,4 @@
-	$Id: syscalls.master,v 1.16 1998/12/30 20:58:28 sos Exp $
+	$Id: syscalls.master,v 1.17 1999/08/11 13:29:48 marcel Exp $
 
 ;	@(#)syscalls.master	8.1 (Berkeley) 7/19/93
 ; System call name/number master file (or rather, slave, from LINUX).
@@ -40,7 +40,7 @@
 6	NOPROTO	LINUX	{ int close(int fd); }
 7	STD	LINUX	{ int linux_waitpid(int pid, int *status, int options);}
 8	STD	LINUX	{ int linux_creat(char *path, int mode); }
-9	NOPROTO	LINUX	{ int link(char *path, char *link); }
+9	STD	LINUX	{ int linux_link(char *path, char *to); }
 10	STD	LINUX	{ int linux_unlink(char *path); }
 11	STD	LINUX	{ int linux_execve(char *path, char **argp, char **envp); }
 12	STD	LINUX	{ int linux_chdir(char *path); }