1 files changed, 112 insertions, 0 deletions
diff --git a/src/server_check.c b/src/server_check.c
new file mode 100644
index 0000000..4c20be1
--- /dev/null
+++ b/src/server_check.c
@@ -0,0 +1,112 @@
+/*
+ * 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 <stdio.h>
+#include <stdlib.h>
+#include <limits.h>
+#include <assert.h>
+
+#include "server_check.h"
+#include "stats.h"
+#include "logging.h"
+
+/*
+ * Function name: check_value
+ * Description: Checks if the string is a valid positive int number.
+ * Arguments: what - the string representing number
+ *            info - the information string printed on failure
+ * Returns: The decoded int number.
+ */
+
+int
+check_value(char* what, char* info)
+{
+  long tmp;
+  
+  assert(what != NULL);
+  assert(info != NULL);
+  
+  tmp = check_value_liberal(what, info);
+  
+  if (tmp <= 0) {
+    aflog(LOG_T_INIT, LOG_I_CRIT,
+        "%s: %d\n", info, tmp);
+    exit(1);
+  }
+  return tmp;
+}
+
+/*
+ * Function name: check_value_liberal
+ * Description: Checks if the string is a valid int number.
+ * Arguments: what - the string representing number
+ *            info - the information string printed on failure
+ * Returns: The decoded int number.
+ */
+
+int
+check_value_liberal(char* what, char* info)
+{
+  char* znak;
+  long tmp;
+
+  assert(what != NULL);
+  assert(info != NULL);
+  
+  if ((tmp = strtol(what, &znak, 10)) >= INT_MAX) {
+    aflog(LOG_T_INIT, LOG_I_CRIT,
+        "%s: %s\n", info, what);
+    exit(1);
+  }
+  if (((*what) == '\0') || (*znak != '\0')) {
+    aflog(LOG_T_INIT, LOG_I_CRIT,
+        "%s: %s\n", info, what);
+    exit(1);
+  }
+  return tmp;
+}
+
+/*
+ * Function name: check_long
+ * Description: Checks if the string is a valid long number.
+ * Arguments: text - the string representing number
+ *            number - the pointer where decoded number will be stored
+ * Returns: 0 - success,
+ *          1 - value from outside the long number range,
+ *          2 - not the valid long number.
+ */
+
+int
+check_long(char* text, long* number)
+{
+  char* tmp;
+  if (((*number = strtol(text, &tmp, 10)) == LONG_MAX) || (*number == LONG_MIN)) {
+    return 1;
+  }
+  if ((*text != '\0') && (*tmp == '\0')) {
+    return 0;
+  }
+  else {
+    return 2;
+  }
+}
+