From 46f96ed5e3127394a0cd4dcb961404b792f743b4 Mon Sep 17 00:00:00 2001
From: Jakub Slawinski
Date: Thu, 10 Jul 2014 10:24:59 +0200
Subject: Initial project structure based on Active Port Forwarder 0.8.4.

---
 src/file.c | 117 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 117 insertions(+)
 create mode 100644 src/file.c

(limited to 'src/file.c')

diff --git a/src/file.c b/src/file.c
new file mode 100644
index 0000000..70080c8
--- /dev/null
+++ b/src/file.c
@@ -0,0 +1,117 @@
+/*
+ * active port forwarder - software for secure forwarding
+ * Copyright (C) 2003-2007 jeremian <jeremian [at] poczta.fm>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+#include <config.h>
+
+#include "file.h"
+#include "activefor.h"
+#include "logging.h"
+#include "network.h"
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <limits.h>
+#include <ctype.h>
+
+/*
+ * Function name: parse_line
+ * Description: Splits the buffer into two parts: option and value.
+ * Arguments: buff - the buffer to split
+ *            tab1 - the place where option part will be stored
+ *            tab2 - the place where value part will be stored
+ * Returns: 0 - the buffer was empty,
+ *          1 - the buffer contains only option name,
+ *          2 - the buffer contains only value of the option.
+ */
+
+int
+parse_line(char* buff, char* tab1, char* tab2)
+{
+  int state, i, j, lastDot;
+  state = i = j = 0;
+  lastDot = -1;
+  while (buff[i] != 0) {
+    if (buff[i] == '#') {
+      if ((i > 0) && (buff[i-1] == '\\')) {
+        --j;
+      }
+      else {
+        break;
+      }
+    }
+    switch (state) {
+      case 0: { /* before option name */
+                if (!isspace(buff[i])) {
+                  tab1[j] = buff[i];
+                  j = 1;
+                  state = 1;
+                }
+                break;
+              }
+      case 1: { /* option */
+                if (isspace(buff[i])) {
+                  tab1[j] = 0;
+                  state = 2;
+                  j = 0;
+                }
+                else {
+                  tab1[j] = buff[i];
+                  ++j;
+                }
+                break;
+              }
+      case 2: { /* before option value */
+                if (!isspace(buff[i])) {
+                  if (buff[i] != '.') {
+                    tab2[j] = buff[i];
+                    j = 1;
+                  }
+                  state = 3;
+                }
+                break;
+              }
+      case 3: { /* option value */
+                if (buff[i] == '.') {
+                  lastDot = j;
+                }
+                else if (!isspace(buff[i])) {
+                  lastDot = -1;
+                }
+                else if (lastDot == -1) {
+                  lastDot = j;
+                }
+                tab2[j] = buff[i];
+                ++j;
+                break;
+              }
+    }
+    ++i;
+  }
+  if (lastDot != -1) {
+    tab2[lastDot] = 0;
+  }
+  if (state == 3) {
+    return 2;
+  }
+  if (state == 0) {
+    return 0;
+  }
+  return 1;
+}
-- 
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