Add the lchflags(2) syscall.

Reviewed by:	rwatson

8 files changed, 63 insertions, 7 deletions

diff --git a/sys/kern/init_sysent.c b/sys/kern/init_sysent.c
index b212aaf..567ce4b 100644
--- a/sys/kern/init_sysent.c
+++ b/sys/kern/init_sysent.c
@@ -3,7 +3,7 @@
  *
  * DO NOT EDIT-- this file is automatically generated.
  * $FreeBSD$
- * created from FreeBSD: src/sys/kern/syscalls.master,v 1.109 2002/04/14 05:31:47 alc Exp 
+ * created from FreeBSD: src/sys/kern/syscalls.master,v 1.111 2002/05/05 23:37:44 mux Exp 
  */
 
 #include "opt_compat.h"
@@ -413,4 +413,5 @@ struct sysent sysent[] = {
 	{ 0, (sy_call_t *)nosys },			/* 388 = __mac_set_fd */
 	{ 0, (sy_call_t *)nosys },			/* 389 = __mac_set_file */
 	{ AS(kenv_args), (sy_call_t *)kenv },		/* 390 = kenv */
+	{ AS(lchflags_args), (sy_call_t *)lchflags },	/* 391 = lchflags */
 };
diff --git a/sys/kern/syscalls.c b/sys/kern/syscalls.c
index 34a1382..7b0b49e 100644
--- a/sys/kern/syscalls.c
+++ b/sys/kern/syscalls.c
@@ -3,7 +3,7 @@
  *
  * DO NOT EDIT-- this file is automatically generated.
  * $FreeBSD$
- * created from FreeBSD: src/sys/kern/syscalls.master,v 1.109 2002/04/14 05:31:47 alc Exp 
+ * created from FreeBSD: src/sys/kern/syscalls.master,v 1.111 2002/05/05 23:37:44 mux Exp 
  */
 
 char *syscallnames[] = {
@@ -398,4 +398,5 @@ char *syscallnames[] = {
 	"#388",			/* 388 = __mac_set_fd */
 	"#389",			/* 389 = __mac_set_file */
 	"kenv",			/* 390 = kenv */
+	"lchflags",			/* 391 = lchflags */
 };
diff --git a/sys/kern/vfs_extattr.c b/sys/kern/vfs_extattr.c
index 1db5510..f256e9e 100644
--- a/sys/kern/vfs_extattr.c
+++ b/sys/kern/vfs_extattr.c
@@ -2894,6 +2894,29 @@ chflags(td, uap)
 }
 
 /*
+ * Same as chflags() but doesn't follow symlinks.
+ */
+int
+lchflags(td, uap)
+	struct thread *td;
+	register struct lchflags_args /* {
+		syscallarg(char *) path;
+		syscallarg(int) flags;
+	} */ *uap;
+{
+	int error;
+	struct nameidata nd;
+
+	NDINIT(&nd, LOOKUP, NOFOLLOW, UIO_USERSPACE, SCARG(uap, path), td);
+	if ((error = namei(&nd)) != 0)
+		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
+	error = setfflags(td, nd.ni_vp, SCARG(uap, flags));
+	vrele(nd.ni_vp);
+	return error;
+}
+
+/*
  * Change flags of a file given a file descriptor.
  */
 #ifndef _SYS_SYSPROTO_H_
diff --git a/sys/kern/vfs_syscalls.c b/sys/kern/vfs_syscalls.c
index 1db5510..f256e9e 100644
--- a/sys/kern/vfs_syscalls.c
+++ b/sys/kern/vfs_syscalls.c
@@ -2894,6 +2894,29 @@ chflags(td, uap)
 }
 
 /*
+ * Same as chflags() but doesn't follow symlinks.
+ */
+int
+lchflags(td, uap)
+	struct thread *td;
+	register struct lchflags_args /* {
+		syscallarg(char *) path;
+		syscallarg(int) flags;
+	} */ *uap;
+{
+	int error;
+	struct nameidata nd;
+
+	NDINIT(&nd, LOOKUP, NOFOLLOW, UIO_USERSPACE, SCARG(uap, path), td);
+	if ((error = namei(&nd)) != 0)
+		return (error);
+	NDFREE(&nd, NDF_ONLY_PNBUF);
+	error = setfflags(td, nd.ni_vp, SCARG(uap, flags));
+	vrele(nd.ni_vp);
+	return error;
+}
+
+/*
  * Change flags of a file given a file descriptor.
  */
 #ifndef _SYS_SYSPROTO_H_
diff --git a/sys/sys/stat.h b/sys/sys/stat.h
index a53960d..00c8de0 100644
--- a/sys/sys/stat.h
+++ b/sys/sys/stat.h
@@ -255,6 +255,7 @@ mode_t	umask(mode_t);
 
 #ifndef _POSIX_SOURCE
 int	chflags(const char *, u_long);
+int	lchflags(const char *, int);
 int	fchflags(int, u_long);
 int	fchmod(int, mode_t);
 int	lchmod(const char *, mode_t);
diff --git a/sys/sys/syscall.h b/sys/sys/syscall.h
index c336453..31c0c9a 100644
--- a/sys/sys/syscall.h
+++ b/sys/sys/syscall.h
@@ -3,7 +3,7 @@
  *
  * DO NOT EDIT-- this file is automatically generated.
  * $FreeBSD$
- * created from FreeBSD: src/sys/kern/syscalls.master,v 1.109 2002/04/14 05:31:47 alc Exp 
+ * created from FreeBSD: src/sys/kern/syscalls.master,v 1.111 2002/05/05 23:37:44 mux Exp 
  */
 
 #define	SYS_syscall	0
@@ -304,4 +304,5 @@
 #define	SYS_thread_wakeup	382
 #define	SYS_kse_yield	383
 #define	SYS_kenv	390
-#define	SYS_MAXSYSCALL	391
+#define	SYS_lchflags	391
+#define	SYS_MAXSYSCALL	392
diff --git a/sys/sys/syscall.mk b/sys/sys/syscall.mk
index 4c25a9e..d269daf 100644
--- a/sys/sys/syscall.mk
+++ b/sys/sys/syscall.mk
@@ -1,7 +1,7 @@
 # FreeBSD system call names.
 # DO NOT EDIT-- this file is automatically generated.
 # $FreeBSD$
-# created from FreeBSD: src/sys/kern/syscalls.master,v 1.109 2002/04/14 05:31:47 alc Exp 
+# created from FreeBSD: src/sys/kern/syscalls.master,v 1.111 2002/05/05 23:37:44 mux Exp 
 MIASM =  \
 	syscall.o \
 	exit.o \
@@ -253,4 +253,5 @@ MIASM =  \
 	kse_new.o \
 	thread_wakeup.o \
 	kse_yield.o \
-	kenv.o
+	kenv.o \
+	lchflags.o
diff --git a/sys/sys/sysproto.h b/sys/sys/sysproto.h
index 80385c0..011dc92 100644
--- a/sys/sys/sysproto.h
+++ b/sys/sys/sysproto.h
@@ -3,7 +3,7 @@
  *
  * DO NOT EDIT-- this file is automatically generated.
  * $FreeBSD$
- * created from FreeBSD: src/sys/kern/syscalls.master,v 1.109 2002/04/14 05:31:47 alc Exp 
+ * created from FreeBSD: src/sys/kern/syscalls.master,v 1.111 2002/05/05 23:37:44 mux Exp 
  */
 
 #ifndef _SYS_SYSPROTO_H_
@@ -1111,6 +1111,10 @@ struct kenv_args {
 	char value_l_[PADL_(char *)]; char * value; char value_r_[PADR_(char *)];
 	char len_l_[PADL_(int)]; int len; char len_r_[PADR_(int)];
 };
+struct lchflags_args {
+	char path_l_[PADL_(const char *)]; const char * path; char path_r_[PADR_(const char *)];
+	char flags_l_[PADL_(int)]; int flags; char flags_r_[PADR_(int)];
+};
 int	nosys(struct thread *, struct nosys_args *);
 void	sys_exit(struct thread *, struct sys_exit_args *);
 int	fork(struct thread *, struct fork_args *);
@@ -1361,6 +1365,7 @@ int	kse_new(struct thread *, struct kse_new_args *);
 int	thread_wakeup(struct thread *, struct thread_wakeup_args *);
 int	kse_yield(struct thread *, struct kse_yield_args *);
 int	kenv(struct thread *, struct kenv_args *);
+int	lchflags(struct thread *, struct lchflags_args *);
 
 #ifdef COMPAT_43