Import sources from 2011-03-30 iso image

1 files changed, 25 insertions, 0 deletions

diff --git a/sys/src/lib9p/util.c b/sys/src/lib9p/util.c
new file mode 100755
index 000000000..17588a95e
--- /dev/null
+++ b/sys/src/lib9p/util.c
@@ -0,0 +1,25 @@
+#include <u.h>
+#include <libc.h>
+#include <auth.h>
+#include <fcall.h>
+#include <thread.h>
+#include "9p.h"
+
+void
+readbuf(Req *r, void *s, long n)
+{
+	r->ofcall.count = r->ifcall.count;
+	if(r->ifcall.offset >= n){
+		r->ofcall.count = 0;
+		return;
+	}
+	if(r->ifcall.offset+r->ofcall.count > n)
+		r->ofcall.count = n - r->ifcall.offset;
+	memmove(r->ofcall.data, (char*)s+r->ifcall.offset, r->ofcall.count);
+}
+
+void
+readstr(Req *r, char *s)
+{
+	readbuf(r, s, strlen(s));
+}