diff options
Diffstat (limited to 'openvpn/integer.h')
-rw-r--r-- | openvpn/integer.h | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/openvpn/integer.h b/openvpn/integer.h deleted file mode 100644 index 68cf40f..0000000 --- a/openvpn/integer.h +++ /dev/null @@ -1,114 +0,0 @@ -/* - * OpenVPN -- An application to securely tunnel IP networks - * over a single UDP port, with support for SSL/TLS-based - * session authentication and key exchange, - * packet encryption, packet authentication, and - * packet compression. - * - * Copyright (C) 2002-2005 OpenVPN Solutions LLC <info@openvpn.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 - * as published by the Free Software Foundation. - * - * 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 (see the file COPYING included with this - * distribution); if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#ifndef INTEGER_H -#define INTEGER_H - -#include "error.h" - -/* - * min/max functions - */ - -static inline int -max_int (int x, int y) -{ - if (x > y) - return x; - else - return y; -} - -static inline int -min_int (int x, int y) -{ - if (x < y) - return x; - else - return y; -} - -static inline int -constrain_int (int x, int min, int max) -{ - if (min > max) - return min; - if (x < min) - return min; - else if (x > max) - return max; - else - return x; -} - -/* - * Functions used for circular buffer index arithmetic. - */ - -/* - * Return x - y on a circle of circumference mod by shortest path. - * - * 0 <= x < mod - * 0 <= y < mod - */ -static inline int -modulo_subtract(int x, int y, int mod) -{ - const int d1 = x - y; - const int d2 = (x > y ? -mod : mod) + d1; - ASSERT (0 <= x && x < mod && 0 <= y && y < mod); - return abs(d1) > abs(d2) ? d2 : d1; -} - -/* - * Return x + y on a circle of circumference mod. - * - * 0 <= x < mod - * -mod <= y <= mod - */ -static inline int -modulo_add(int x, int y, int mod) -{ - int sum = x + y; - ASSERT (0 <= x && x < mod && -mod <= y && y <= mod); - if (sum >= mod) - sum -= mod; - if (sum < 0) - sum += mod; - return sum; -} - -static inline int -index_verify (int index, int size, const char *file, int line) -{ - if (index < 0 || index >= size) - msg (M_FATAL, "Assertion Failed: Array index=%d out of bounds for array size=%d in %s:%d", - index, - size, - file, - line); - return index; -} - -#endif |