+#ifndef TINC_UTILS_H
+#define TINC_UTILS_H
+
/*
utils.h -- header file for utils.c
Copyright (C) 1999-2005 Ivo Timmermans
- 2000-2009 Guus Sliepen <guus@tinc-vpn.org>
+ 2000-2013 Guus Sliepen <guus@tinc-vpn.org>
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
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
-#ifndef __TINC_UTILS_H__
-#define __TINC_UTILS_H__
+#include "system.h"
+
+#include "crypto.h"
+
+#define B64_SIZE(len) ((len) * 4 / 3 + 5)
+#define HEX_SIZE(len) ((len) * 2 + 1)
+
+extern size_t hex2bin(const char *src, void *dst, size_t length);
+extern size_t bin2hex(const void *src, char *dst, size_t length);
+
+// Returns true if string represents a base-10 integer.
+extern bool is_decimal(const char *str);
+
+// The reverse of atoi().
+extern char *int_to_str(int num);
-extern void hex2bin(char *src, char *dst, int length);
-extern void bin2hex(char *src, char *dst, int length);
+extern size_t b64encode_tinc(const void *src, char *dst, size_t length);
+extern size_t b64encode_tinc_urlsafe(const void *src, char *dst, size_t length);
+extern size_t b64decode_tinc(const char *src, void *dst, size_t length);
-#ifdef HAVE_MINGW
+#ifdef HAVE_WINDOWS
extern const char *winerror(int);
#define strerror(x) ((x)>0?strerror(x):winerror(GetLastError()))
#define sockerrno WSAGetLastError()
#define sockmsgsize(x) ((x) == WSAEMSGSIZE)
#define sockinprogress(x) ((x) == WSAEINPROGRESS || (x) == WSAEWOULDBLOCK)
#define sockinuse(x) ((x) == WSAEADDRINUSE)
+#define socknotconn(x) ((x) == WSAENOTCONN)
+#define sockshutdown(x) ((x) == WSAESHUTDOWN)
+
+static inline long jitter(void) {
+ return (long)prng(131072);
+}
#else
#define sockerrno errno
#define sockstrerror(x) strerror(x)
#define sockmsgsize(x) ((x) == EMSGSIZE)
#define sockinprogress(x) ((x) == EINPROGRESS)
#define sockinuse(x) ((x) == EADDRINUSE)
+#define socknotconn(x) ((x) == ENOTCONN)
+
+static inline suseconds_t jitter(void) {
+ return (suseconds_t)prng(131072);
+}
#endif
-extern unsigned int bitfield_to_int(void *bitfield, size_t size);
+extern bool check_id(const char *id);
+extern bool check_netname(const char *netname, bool strict);
+char *replace_name(const char *name);
+
+char *absolute_path(const char *path) ATTR_MALLOC;
-#endif /* __TINC_UTILS_H__ */
+extern FILE *fopenmask(const char *filename, const char *mode, mode_t perms);
+
+#endif