1 files changed, 41 insertions, 0 deletions
diff --git a/unix/boot/bootlib/osfpathname.c b/unix/boot/bootlib/osfpathname.c
new file mode 100644
index 00000000..17fdba61
--- /dev/null
+++ b/unix/boot/bootlib/osfpathname.c
@@ -0,0 +1,41 @@
+/* Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+ */
+
+#include "bootlib.h"
+
+
+/* OS_FPATHNAME -- Map a VFN (virtual filename) into a pathname (filename
+ * specification which is independent of the current directory).
+ */
+int
+os_fpathname (
+  char	*vfn,			/* virtual filename		*/
+  char	*osfn,			/* OS filename			*/
+  int	maxch 
+)
+{
+	XCHAR	x_vfn[SZ_PATHNAME+1];
+	XCHAR	x_osfn[SZ_PATHNAME+1];
+	XINT	x_maxch = SZ_PATHNAME, x_nchars;
+
+	extern  int ZFGCWD(), ZFSUBD(), ZFPATH();
+
+
+	if (vfn[0])
+	    os_strupk (vfn2osfn(vfn,0), x_vfn, x_maxch);
+	else
+	    x_vfn[0] = 0;
+
+	if (vfn[0] == '.' && (vfn[1] == EOS || vfn[2] == EOS)) {
+	    ZFGCWD (x_osfn, &x_maxch, &x_nchars);
+	    os_strupk ((char *)x_osfn, x_osfn, x_maxch);
+	    if (vfn[1] == '.') {
+		os_strupk (vfn, x_vfn, x_maxch);
+		ZFSUBD (x_osfn, &x_maxch, x_vfn, &x_nchars);
+	    }
+	} else
+	    ZFPATH (x_vfn, x_osfn, &x_maxch, &x_nchars);
+
+	os_strpak (x_osfn, osfn, maxch);
+	return (x_nchars);
+}