1 files changed, 34 insertions, 0 deletions
diff --git a/sys/libc/cfpath.c b/sys/libc/cfpath.c
new file mode 100644
index 00000000..b7820012
--- /dev/null
+++ b/sys/libc/cfpath.c
@@ -0,0 +1,34 @@
+/* Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+*/
+
+#define import_spp
+#define	import_libc
+#define	import_xnames
+#include <iraf.h>
+
+
+/* C_FPATHNAME -- Map a VFN (virtual filename) into a pathname (filename
+** specification which is independent of the current directory).
+*/
+int
+c_fpathname (
+  char	*vfn,			/* virtual filename		*/
+  char	*osfn,			/* OS filename			*/
+  int	maxch
+)
+{
+	XCHAR	x_osfn[SZ_PATHNAME+1];
+	XINT	x_maxch = SZ_PATHNAME;
+
+
+	/* The OSFN is returned as a packed string in the XCHAR array x_osfn.
+	 * An intermediate buffer is used to avoid char->xchar alignment
+	 * problems of upward pointer coercion on some machines.
+	 */
+	iferr (FPATHNAME (c_sppstr(vfn), x_osfn, &x_maxch))
+	    osfn[0] = EOS;
+	else
+	    c_strpak (x_osfn, osfn, maxch);
+	
+	return (strlen (osfn));
+}