Import sources from 2011-03-30 iso image

1 files changed, 27 insertions, 0 deletions

diff --git a/sys/src/cmd/unix/drawterm/kern/waserror.c b/sys/src/cmd/unix/drawterm/kern/waserror.c
new file mode 100755
index 000000000..3a07bc928
--- /dev/null
+++ b/sys/src/cmd/unix/drawterm/kern/waserror.c
@@ -0,0 +1,27 @@
+#include "u.h"
+#include "lib.h"
+#include "dat.h"
+#include "fns.h"
+#include "error.h"
+
+Label*
+pwaserror(void)
+{
+	if(up->nerrlab == NERR)
+		panic("error stack overflow");
+	return &up->errlab[up->nerrlab++];
+}
+
+void
+nexterror(void)
+{
+	longjmp(up->errlab[--up->nerrlab].buf, 1);
+}
+
+void
+error(char *e)
+{
+	kstrcpy(up->errstr, e, ERRMAX);
+	setjmp(up->errlab[NERR-1].buf);
+	nexterror();
+}