Annotation of embedaddon/quagga/babeld/util.h, revision 1.1
1.1 ! misho 1: /*
! 2: * This file is free software: you may copy, redistribute and/or modify it
! 3: * under the terms of the GNU General Public License as published by the
! 4: * Free Software Foundation, either version 2 of the License, or (at your
! 5: * option) any later version.
! 6: *
! 7: * This file is distributed in the hope that it will be useful, but
! 8: * WITHOUT ANY WARRANTY; without even the implied warranty of
! 9: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
! 10: * General Public License for more details.
! 11: *
! 12: * You should have received a copy of the GNU General Public License
! 13: * along with this program. If not, see <http://www.gnu.org/licenses/>.
! 14: *
! 15: * This file incorporates work covered by the following copyright and
! 16: * permission notice:
! 17: *
! 18: Copyright (c) 2007, 2008 by Juliusz Chroboczek
! 19: Copyright 2011 by Matthieu Boutier and Juliusz Chroboczek
! 20:
! 21: Permission is hereby granted, free of charge, to any person obtaining a copy
! 22: of this software and associated documentation files (the "Software"), to deal
! 23: in the Software without restriction, including without limitation the rights
! 24: to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
! 25: copies of the Software, and to permit persons to whom the Software is
! 26: furnished to do so, subject to the following conditions:
! 27:
! 28: The above copyright notice and this permission notice shall be included in
! 29: all copies or substantial portions of the Software.
! 30:
! 31: THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
! 32: IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
! 33: FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
! 34: AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
! 35: LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
! 36: OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
! 37: THE SOFTWARE.
! 38: */
! 39:
! 40: #include "babeld.h"
! 41: #include "babel_main.h"
! 42: #include "log.h"
! 43:
! 44: #if defined(i386) || defined(__mc68020__) || defined(__x86_64__)
! 45: #define DO_NTOHS(_d, _s) do{ _d = ntohs(*(const unsigned short*)(_s)); }while(0)
! 46: #define DO_NTOHL(_d, _s) do{ _d = ntohl(*(const unsigned*)(_s)); } while(0)
! 47: #define DO_HTONS(_d, _s) do{ *(unsigned short*)(_d) = htons(_s); } while(0)
! 48: #define DO_HTONL(_d, _s) do{ *(unsigned*)(_d) = htonl(_s); } while(0)
! 49: /* Some versions of gcc seem to be buggy, and ignore the packed attribute.
! 50: Disable this code until the issue is clarified. */
! 51: /* #elif defined __GNUC__*/
! 52: #elif 0
! 53: struct __us { unsigned short x __attribute__((packed)); };
! 54: #define DO_NTOHS(_d, _s) \
! 55: do { _d = ntohs(((const struct __us*)(_s))->x); } while(0)
! 56: #define DO_HTONS(_d, _s) \
! 57: do { ((struct __us*)(_d))->x = htons(_s); } while(0)
! 58: #else
! 59: #define DO_NTOHS(_d, _s) \
! 60: do { short _dd; \
! 61: memcpy(&(_dd), (_s), 2); \
! 62: _d = ntohs(_dd); } while(0)
! 63: #define DO_HTONS(_d, _s) \
! 64: do { unsigned short _dd; \
! 65: _dd = htons(_s); \
! 66: memcpy((_d), &(_dd), 2); } while(0)
! 67: #endif
! 68:
! 69: static inline int
! 70: seqno_compare(unsigned short s1, unsigned short s2)
! 71: {
! 72: if(s1 == s2)
! 73: return 0;
! 74: else
! 75: return ((s2 - s1) & 0x8000) ? 1 : -1;
! 76: }
! 77:
! 78: static inline short
! 79: seqno_minus(unsigned short s1, unsigned short s2)
! 80: {
! 81: return (short)((s1 - s2) & 0xFFFF);
! 82: }
! 83:
! 84: static inline unsigned short
! 85: seqno_plus(unsigned short s, int plus)
! 86: {
! 87: return ((s + plus) & 0xFFFF);
! 88: }
! 89:
! 90: unsigned roughly(unsigned value);
! 91: void timeval_minus(struct timeval *d,
! 92: const struct timeval *s1, const struct timeval *s2);
! 93: unsigned timeval_minus_msec(const struct timeval *s1, const struct timeval *s2)
! 94: ATTRIBUTE ((pure));
! 95: void timeval_add_msec(struct timeval *d,
! 96: const struct timeval *s, const int msecs);
! 97: void set_timeout (struct timeval *timeout, int msecs);
! 98: int timeval_compare(const struct timeval *s1, const struct timeval *s2)
! 99: ATTRIBUTE ((pure));
! 100: void timeval_min(struct timeval *d, const struct timeval *s);
! 101: void timeval_min_sec(struct timeval *d, time_t secs);
! 102: int parse_msec(const char *string) ATTRIBUTE ((pure));
! 103: int in_prefix(const unsigned char *restrict address,
! 104: const unsigned char *restrict prefix, unsigned char plen)
! 105: ATTRIBUTE ((pure));
! 106: unsigned char *mask_prefix(unsigned char *restrict ret,
! 107: const unsigned char *restrict prefix,
! 108: unsigned char plen);
! 109: const char *format_address(const unsigned char *address);
! 110: const char *format_prefix(const unsigned char *address, unsigned char prefix);
! 111: const char *format_eui64(const unsigned char *eui);
! 112: const char *format_bool(const int b);
! 113: int parse_address(const char *address, unsigned char *addr_r, int *af_r);
! 114: int parse_eui64(const char *eui, unsigned char *eui_r);
! 115: int wait_for_fd(int direction, int fd, int msecs);
! 116: int martian_prefix(const unsigned char *prefix, int plen) ATTRIBUTE ((pure));
! 117: int linklocal(const unsigned char *address) ATTRIBUTE ((pure));
! 118: int v4mapped(const unsigned char *address) ATTRIBUTE ((pure));
! 119: void v4tov6(unsigned char *dst, const unsigned char *src);
! 120: void inaddr_to_uchar(unsigned char *dest, const struct in_addr *src);
! 121: void uchar_to_inaddr(struct in_addr *dest, const unsigned char *src);
! 122: void in6addr_to_uchar(unsigned char *dest, const struct in6_addr *src);
! 123: void uchar_to_in6addr(struct in6_addr *dest, const unsigned char *src);
! 124: int daemonise(void);
! 125:
! 126: /* If debugging is disabled, we want to avoid calling format_address
! 127: for every omitted debugging message. So debug is a macro. But
! 128: vararg macros are not portable. */
! 129: #if defined NO_DEBUG
! 130:
! 131: #if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
! 132: #define debugf(...) do {} while(0)
! 133: #elif defined __GNUC__
! 134: #define debugf(_args...) do {} while(0)
! 135: #else
! 136: static inline void debugf(int level, const char *format, ...) { return; }
! 137: #endif
! 138:
! 139: #else /* NO_DEBUG */
! 140:
! 141: /* some levels */
! 142: #define BABEL_DEBUG_COMMON (1 << 0)
! 143: #define BABEL_DEBUG_KERNEL (1 << 1)
! 144: #define BABEL_DEBUG_FILTER (1 << 2)
! 145: #define BABEL_DEBUG_TIMEOUT (1 << 3)
! 146: #define BABEL_DEBUG_IF (1 << 4)
! 147: #define BABEL_DEBUG_ROUTE (1 << 5)
! 148: #define BABEL_DEBUG_ALL (0xFFFF)
! 149:
! 150: #if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
! 151: #define debugf(level, ...) \
! 152: do { \
! 153: if(UNLIKELY(debug & level)) zlog_debug(__VA_ARGS__); \
! 154: } while(0)
! 155: #elif defined __GNUC__
! 156: #define debugf(level, _args...) \
! 157: do { \
! 158: if(UNLIKELY(debug & level)) zlog_debug(_args); \
! 159: } while(0)
! 160: #else
! 161: static inline void debugf(int level, const char *format, ...) { return; }
! 162: #endif
! 163:
! 164: #endif /* NO_DEBUG */
! 165:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/cvsweb/back.gif){kind=icon}
Return to util.h CVS log ![[TXT]](/icons/cvsweb/text.gif){kind=icon}
![[DIR]](/icons/cvsweb/dir.gif){kind=icon}
Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / quagga / babeld