Repatch (from linux) of OSX IRAF

1 files changed, 35 insertions, 0 deletions

diff --git a/sys/libc/cstrpak.c b/sys/libc/cstrpak.c
new file mode 100644
index 00000000..6236aa0d
--- /dev/null
+++ b/sys/libc/cstrpak.c
@@ -0,0 +1,35 @@
+/* Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+*/
+
+#define import_spp
+#define	import_libc
+#include <iraf.h>
+
+
+/* C_STRPAK -- Pack an SPP string (type XCHAR) into a C string in a user
+** supplied buffer.  Return a pointer to the output buffer.
+**
+** N.B.: This routine should be used in preference to STRPAK in C code
+** since the output string is of type char*, rather than XCHAR*.
+*/
+char *
+c_strpak (
+  XCHAR	*sppstr,		/* SPP string			*/
+  char	*cstr,			/* C string			*/
+  int	maxch			/* max chars out, incl EOS	*/
+)
+{
+	register XCHAR	*ip = sppstr;
+	register char	*op = cstr;
+	register int	n = maxch-1;
+
+	if (maxch) {
+	    if (sizeof(XCHAR) != sizeof(char) || (char *)sppstr != cstr) {
+		while (--n >= 0 && (*op++ = *ip++) != EOS)
+		    ;
+		cstr[maxch-1] = EOS;
+	    }
+	}
+
+	return (cstr);
+}