1 files changed, 65 insertions, 0 deletions
diff --git a/sys/libc/spf.c b/sys/libc/spf.c
new file mode 100644
index 00000000..2953ed76
--- /dev/null
+++ b/sys/libc/spf.c
@@ -0,0 +1,65 @@
+/* Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+*/
+
+#define	import_spp
+#define	import_libc
+#define	import_xnames
+#include <iraf.h>
+
+
+/*
+** SPF.C -- String spoolfile utility package.  Used to capture in a string
+** buffer the output of a routine set up to write to a file.
+**
+** Example:
+**
+**	fd = spf_open (buf, maxch)
+**	fprop (pp, fdopen(fd,"w"));
+**	spf_close (fd);
+**
+** leaves the output of the fprop() function in the user buffer "buf".
+*/
+
+static	XCHAR	*spf_buf;
+static	char	*spf_userbuf;
+static	int	spf_maxch;
+
+
+/* SPF_OPEN -- Spoolfile open.  Open a string spoolfile to be written into as
+** a file, using ordinary file i/o.  Only one such file can be open at a time.
+*/
+int
+spf_open (
+  char	*buf,			/* user string buffer		*/
+  int	maxch			/* max chars of storage		*/
+)
+{
+	XINT    x_maxch = maxch, x_mode = NEW_FILE;
+	char	*malloc();
+
+
+	spf_userbuf = buf;
+	spf_maxch = maxch;
+
+	/* Malloc always returns a buffer which aligned to at least XCHAR. */
+	spf_buf = (XCHAR *) malloc ((maxch + 1) * sizeof(XCHAR));
+
+	return (STROPEN (spf_buf, &x_maxch, &x_mode));
+}
+
+
+/* SPF_CLOSE -- Close the spoolfile string, which should have been written
+** into via file i/o while the string was open.  This leaves SPP chars in
+** the string; pack the string and return a pointer to the string.
+*/
+void
+spf_close (
+  XINT	fd			/* file descriptor of stringbuf	*/
+)
+{
+	XINT  x_fd = fd;
+
+	CLOSE (&x_fd);
+	c_strpak (spf_buf, spf_userbuf, spf_maxch);
+	free ((char *)spf_buf);
+}