1 files changed, 31 insertions, 0 deletions
diff --git a/sys/libc/csppstr.c b/sys/libc/csppstr.c
new file mode 100644
index 00000000..ce7c9461
--- /dev/null
+++ b/sys/libc/csppstr.c
@@ -0,0 +1,31 @@
+/* Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+*/
+
+#define import_spp
+#define	import_libc
+#include <iraf.h>
+
+#define	SZ_UPKSTR	SZ_COMMAND
+static	XCHAR u_upkstr[SZ_UPKSTR+1];
+
+/* C_SPPSTR -- Unpack a C string into an SPP string.  This routine is offered
+** as a convenient alternative to C_STRUPK for cases when the length of the
+** string is known to be short and the value will be used before we are again
+** called.  The unpacked string is left in a static internal buffer and a
+** pointer to XCHAR is returned as the function value.
+*/
+XCHAR *
+c_sppstr (
+  char	*str
+)
+{
+	register char	*ip = str;
+	register XCHAR	*op = u_upkstr;
+	register int	n = SZ_UPKSTR;
+
+	while (--n >= 0 && (*op++ = *ip++) != XEOS)
+	    ;
+	u_upkstr[SZ_UPKSTR] = XEOS;
+
+	return (u_upkstr);
+}