20060303a

1 files changed, 52 insertions, 0 deletions

diff --git a/emu/port/dynld.c b/emu/port/dynld.c
new file mode 100644
index 00000000..6c5bf8e4
--- /dev/null
+++ b/emu/port/dynld.c
@@ -0,0 +1,52 @@
+#include	"dat.h"
+#include	"fns.h"
+#include	"error.h"
+#include	<a.out.h>
+#include	<dynld.h>
+
+/*
+ * kernel interface to dynld, for use by devdynld.c,
+ * libinterp/dlm.c, and possibly others
+ */
+
+typedef struct Fd Fd;
+struct Fd {
+	int	fd;
+};
+
+static long
+readfd(void *a, void *buf, long nbytes)
+{
+	return kread(((Fd*)a)->fd, buf, nbytes);
+}
+
+static vlong
+seekfd(void *a, vlong off, int t)
+{
+	return kseek(((Fd*)a)->fd, off, t);
+}
+
+static void
+errfd(char *s)
+{
+	kstrcpy(up->env->errstr, s, ERRMAX);
+}
+
+Dynobj*
+kdynloadfd(int fd, Dynsym *tab, int ntab)
+{
+	Dynobj *o;
+	Fd f;
+
+	f.fd = fd;
+	return dynloadgen(&f, readfd, seekfd, errfd, tab, ntab, 0);
+}
+
+int
+kdynloadable(int fd)
+{
+	Fd f;
+
+	f.fd = fd;
+	return dynloadable(&f, readfd, seekfd);
+}