1 #ifndef MESHLINK_UTILS_H
2 #define MESHLINK_UTILS_H
5 utils.h -- header file for utils.c
6 Copyright (C) 2014, 2017 Guus Sliepen <guus@meshlink.io>
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License along
19 with this program; if not, write to the Free Software Foundation, Inc.,
20 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
23 int hex2bin(const char *src, void *dst, int length);
24 int bin2hex(const void *src, char *dst, int length);
26 int b64encode(const void *src, char *dst, int length);
27 int b64encode_urlsafe(const void *src, char *dst, int length);
28 int b64decode(const char *src, void *dst, int length);
31 const char *winerror(int);
32 #define strerror(x) ((x)>0?strerror(x):winerror(GetLastError()))
33 #define sockerrno WSAGetLastError()
34 #define sockstrerror(x) winerror(x)
35 #define sockwouldblock(x) ((x) == WSAEWOULDBLOCK || (x) == WSAEINTR)
36 #define sockmsgsize(x) ((x) == WSAEMSGSIZE)
37 #define sockinprogress(x) ((x) == WSAEINPROGRESS || (x) == WSAEWOULDBLOCK)
38 #define sockinuse(x) ((x) == WSAEADDRINUSE)
40 #define sockerrno errno
41 #define sockstrerror(x) strerror(x)
42 #define sockwouldblock(x) ((x) == EWOULDBLOCK || (x) == EINTR)
43 #define sockmsgsize(x) ((x) == EMSGSIZE)
44 #define sockinprogress(x) ((x) == EINPROGRESS)
45 #define sockinuse(x) ((x) == EADDRINUSE)
48 unsigned int bitfield_to_int(const void *bitfield, size_t size) __attribute__((__warn_unused_result__));
50 static inline void timespec_add(const struct timespec *a, const struct timespec *b, struct timespec *r) {
51 r->tv_sec = a->tv_sec + b->tv_sec;
52 r->tv_nsec = a->tv_nsec + b->tv_nsec;
54 if(r->tv_nsec > 1000000000) {
55 r->tv_sec++, r->tv_nsec -= 1000000000;
59 static inline void timespec_sub(const struct timespec *a, const struct timespec *b, struct timespec *r) {
60 r->tv_sec = a->tv_sec - b->tv_sec;
61 r->tv_nsec = a->tv_nsec - b->tv_nsec;
64 r->tv_sec--, r->tv_nsec += 1000000000;
68 static inline bool timespec_lt(const struct timespec *a, const struct timespec *b) {
69 if(a->tv_sec == b->tv_sec) {
70 return a->tv_nsec < b->tv_nsec;
72 return a->tv_sec < b->tv_sec;
76 static inline void timespec_clear(struct timespec *a) {
81 static inline bool timespec_isset(const struct timespec *a) {
82 return a->tv_sec || a->tv_nsec;