kernel: Add sys_close()

Signed-off-by: Ian Moffett <ian@osmora.org>

2 files changed, 11 insertions, 0 deletions

diff --git a/sys/kern/kern_filedesc.c b/sys/kern/kern_filedesc.c
index c429125..6f59508 100644
--- a/sys/kern/kern_filedesc.c
+++ b/sys/kern/kern_filedesc.c
@@ -330,3 +330,13 @@ sys_open(struct syscall_args *args)
     dynfree(pathbuf);
     return ret;
 }
+
+/*
+ * arg0: fd
+ */
+uint64_t
+sys_close(struct syscall_args *args)
+{
+    fd_close_fdnum(this_td(), args->arg0);
+    return 0;
+}
diff --git a/sys/kern/kern_syscall.c b/sys/kern/kern_syscall.c
index dc37274..4acfdc5 100644
--- a/sys/kern/kern_syscall.c
+++ b/sys/kern/kern_syscall.c
@@ -44,4 +44,5 @@ uint64_t(*g_syscall_table[__MAX_SYSCALLS])(struct syscall_args *args) = {
     sys_exit,
     sys_write,
     sys_open,
+    sys_close,
 };