1 files changed, 56 insertions, 0 deletions
diff --git a/lib/getline.c b/lib/getline.c
new file mode 100644
index 0000000..7d06d43
--- /dev/null
+++ b/lib/getline.c
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 1993-2001 by Darren Reed.
+ *
+ * See the IPFILTER.LICENCE file for details on licencing.
+ *
+ * $Id: getline.c,v 1.3 2001/06/09 17:09:24 darrenr Exp $
+ */
+
+#include <stdio.h>
+#if !defined(__SVR4) && !defined(__GNUC__)
+#include <strings.h>
+#endif
+#include <string.h>
+#include "ipf.h"
+
+
+/*
+ * Similar to fgets(3) but can handle '\\' and NL is converted to NUL.
+ * Returns NULL if error occured, EOF encounterd or input line is too long.
+ */
+char *getline(str, size, file, linenum)
+register char	*str;
+size_t	size;
+FILE	*file;
+int	*linenum;
+{
+	char *p;
+	int s, len;
+
+	do {
+		for (p = str, s = size;; p += (len - 1), s -= (len - 1)) {
+			/*
+			 * if an error occured, EOF was encounterd, or there
+			 * was no room to put NUL, return NULL.
+			 */
+			if (fgets(p, s, file) == NULL)
+				return (NULL);
+			len = strlen(p);
+			if (p[len - 1] != '\n') {
+				p[len] = '\0';
+				break;
+			}
+			(*linenum)++;
+			p[len - 1] = '\0';
+			if (len < 2 || p[len - 2] != '\\')
+				break;
+			else
+				/*
+				 * Convert '\\' to a space so words don't
+				 * run together
+				 */
+				p[len - 2] = ' ';
+		}
+	} while (*str == '\0');
+	return (str);
+}