5 utils.h -- header file for utils.c
6 Copyright (C) 1999-2005 Ivo Timmermans
7 2000-2013 Guus Sliepen <guus@tinc-vpn.org>
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License along
20 with this program; if not, write to the Free Software Foundation, Inc.,
21 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
28 #define B64_SIZE(len) ((len) * 4 / 3 + 5)
30 extern size_t hex2bin(const char *src, void *dst, size_t length);
31 extern size_t bin2hex(const void *src, char *dst, size_t length);
33 extern size_t b64encode_tinc(const void *src, char *dst, size_t length);
34 extern size_t b64encode_tinc_urlsafe(const void *src, char *dst, size_t length);
35 extern size_t b64decode_tinc(const char *src, void *dst, size_t length);
38 extern const char *winerror(int);
39 #define strerror(x) ((x)>0?strerror(x):winerror(GetLastError()))
40 #define sockerrno WSAGetLastError()
41 #define sockstrerror(x) winerror(x)
42 #define sockwouldblock(x) ((x) == WSAEWOULDBLOCK || (x) == WSAEINTR)
43 #define sockmsgsize(x) ((x) == WSAEMSGSIZE)
44 #define sockinprogress(x) ((x) == WSAEINPROGRESS || (x) == WSAEWOULDBLOCK)
45 #define sockinuse(x) ((x) == WSAEADDRINUSE)
46 #define socknotconn(x) ((x) == WSAENOTCONN)
47 #define sockshutdown(x) ((x) == WSAESHUTDOWN)
49 static inline long jitter(void) {
50 return (long)prng(131072);
53 #define sockerrno errno
54 #define sockstrerror(x) strerror(x)
55 #define sockwouldblock(x) ((x) == EWOULDBLOCK || (x) == EINTR)
56 #define sockmsgsize(x) ((x) == EMSGSIZE)
57 #define sockinprogress(x) ((x) == EINPROGRESS)
58 #define sockinuse(x) ((x) == EADDRINUSE)
59 #define socknotconn(x) ((x) == ENOTCONN)
61 static inline suseconds_t jitter(void) {
62 return (suseconds_t)prng(131072);
66 extern bool check_id(const char *id);
67 extern bool check_netname(const char *netname, bool strict);
68 char *replace_name(const char *name);
70 extern FILE *fopenmask(const char *filename, const char *mode, mode_t perms);