LCOV - code coverage report
Current view: top level - util/io - sockaddr_util.h (source / functions) Hit Total Coverage
Test: report.info Lines: 5 5 100.0 %
Date: 2012-05-15 Functions: 2 3 66.7 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 3 8 37.5 %

           Branch data     Line data    Source code
       1                 :            : // Copyright (C) 2011  Internet Systems Consortium, Inc. ("ISC")
       2                 :            : //
       3                 :            : // Permission to use, copy, modify, and/or distribute this software for any
       4                 :            : // purpose with or without fee is hereby granted, provided that the above
       5                 :            : // copyright notice and this permission notice appear in all copies.
       6                 :            : //
       7                 :            : // THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
       8                 :            : // REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
       9                 :            : // AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
      10                 :            : // INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
      11                 :            : // LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
      12                 :            : // OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
      13                 :            : // PERFORMANCE OF THIS SOFTWARE.
      14                 :            : 
      15                 :            : #ifndef __SOCKADDR_UTIL_H_
      16                 :            : #define __SOCKADDR_UTIL_H_ 1
      17                 :            : 
      18                 :            : #include <sys/socket.h>
      19                 :            : #include <netinet/in.h>
      20                 :            : 
      21                 :            : #include <cassert>
      22                 :            : 
      23                 :            : // These definitions in this file are for the convenience of internal
      24                 :            : // implementation and test code, and are not intended to be used publicly.
      25                 :            : // The namespace "internal" indicates the intent.
      26                 :            : 
      27                 :            : namespace isc {
      28                 :            : namespace util {
      29                 :            : namespace io {
      30                 :            : namespace internal {
      31                 :            : 
      32                 :            : inline socklen_t
      33                 :        152 : getSALength(const struct sockaddr& sa) {
      34 [ +  + ][ #  # ]:        152 :     if (sa.sa_family == AF_INET) {
      35                 :            :         return (sizeof(struct sockaddr_in));
      36                 :            :     } else {
      37 [ -  + ][ #  # ]:        152 :         assert(sa.sa_family == AF_INET6);
      38                 :            :         return (sizeof(struct sockaddr_in6));
      39                 :            :     }
      40                 :            : }
      41                 :            : 
      42                 :            : // Lower level C-APIs require conversion between various variants of
      43                 :            : // sockaddr's, which is not friendly with C++.  The following templates
      44                 :            : // are a shortcut of common workaround conversion in such cases.
      45                 :            : 
      46                 :            : template <typename SAType>
      47                 :            : const struct sockaddr*
      48                 :            : convertSockAddr(const SAType* sa) {
      49                 :         21 :     const void* p = sa;
      50                 :            :     return (static_cast<const struct sockaddr*>(p));
      51                 :            : }
      52                 :            : 
      53                 :            : template <typename SAType>
      54                 :            : const SAType*
      55                 :            : convertSockAddr(const struct sockaddr* sa) {
      56                 :            :     const void* p = sa;
      57                 :            :     return (static_cast<const SAType*>(p));
      58                 :            : }
      59                 :            : 
      60                 :            : template <typename SAType>
      61                 :            : struct sockaddr*
      62                 :            : convertSockAddr(SAType* sa) {
      63                 :        159 :     void* p = sa;
      64                 :            :     return (static_cast<struct sockaddr*>(p));
      65                 :            : }
      66                 :            : 
      67                 :            : template <typename SAType>
      68                 :            : SAType*
      69                 :            : convertSockAddr(struct sockaddr* sa) {
      70                 :            :     void* p = sa;
      71                 :            :     return (static_cast<SAType*>(p));
      72                 :            : }
      73                 :            : 
      74                 :            : }
      75                 :            : }
      76                 :            : }
      77                 :            : }
      78                 :            : 
      79                 :            : #endif  // __SOCKADDR_UTIL_H_
      80                 :            : 
      81                 :            : // Local Variables:
      82                 :            : // mode: c++
      83                 :            : // End:

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