1
2/* Copyright (C) 2010-2011 by Daniel Stenberg
3 *
4 * Permission to use, copy, modify, and distribute this
5 * software and its documentation for any purpose and without
6 * fee is hereby granted, provided that the above copyright
7 * notice appear in all copies and that both that copyright
8 * notice and this permission notice appear in supporting
9 * documentation, and that the name of M.I.T. not be used in
10 * advertising or publicity pertaining to distribution of the
11 * software without specific, written prior permission.
12 * M.I.T. makes no representations about the suitability of
13 * this software for any purpose.  It is provided "as is"
14 * without express or implied warranty.
15 */
16
17
18#include "ares_setup.h"
19
20#ifdef HAVE_ASSERT_H
21#  include <assert.h>
22#endif
23
24#ifdef HAVE_LIMITS_H
25#  include <limits.h>
26#endif
27
28#if defined(__INTEL_COMPILER) && defined(__unix__)
29
30#ifdef HAVE_SYS_SOCKET_H
31#  include <sys/socket.h>
32#endif
33#ifdef HAVE_NETINET_IN_H
34#  include <netinet/in.h>
35#endif
36#ifdef HAVE_ARPA_INET_H
37#  include <arpa/inet.h>
38#endif
39
40#endif /* __INTEL_COMPILER && __unix__ */
41
42#define BUILDING_ARES_NOWARN_C 1
43
44#include "ares_nowarn.h"
45
46#if (SIZEOF_INT == 2)
47#  define CARES_MASK_SINT  0x7FFF
48#  define CARES_MASK_UINT  0xFFFF
49#elif (SIZEOF_INT == 4)
50#  define CARES_MASK_SINT  0x7FFFFFFF
51#  define CARES_MASK_UINT  0xFFFFFFFF
52#elif (SIZEOF_INT == 8)
53#  define CARES_MASK_SINT  0x7FFFFFFFFFFFFFFF
54#  define CARES_MASK_UINT  0xFFFFFFFFFFFFFFFF
55#elif (SIZEOF_INT == 16)
56#  define CARES_MASK_SINT  0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
57#  define CARES_MASK_UINT  0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
58#elif defined(HAVE_LIMITS_H)
59#  define CARES_MASK_SINT  INT_MAX
60#  define CARES_MASK_UINT  UINT_MAX
61#endif
62
63/*
64** unsigned size_t to signed int
65*/
66
67int aresx_uztosi(size_t uznum)
68{
69#ifdef __INTEL_COMPILER
70#  pragma warning(push)
71#  pragma warning(disable:810) /* conversion may lose significant bits */
72#endif
73
74  return (int)(uznum & (size_t) CARES_MASK_SINT);
75
76#ifdef __INTEL_COMPILER
77#  pragma warning(pop)
78#endif
79}
80
81/*
82** signed long to signed int
83*/
84
85int aresx_sltosi(long slnum)
86{
87#ifdef __INTEL_COMPILER
88#  pragma warning(push)
89#  pragma warning(disable:810) /* conversion may lose significant bits */
90#endif
91
92  DEBUGASSERT(slnum >= 0);
93  return (int)(slnum & (long) CARES_MASK_SINT);
94
95#ifdef __INTEL_COMPILER
96#  pragma warning(pop)
97#endif
98}
99
100/*
101** signed ssize_t to signed int
102*/
103
104int aresx_sztosi(ssize_t sznum)
105{
106#ifdef __INTEL_COMPILER
107#  pragma warning(push)
108#  pragma warning(disable:810) /* conversion may lose significant bits */
109#endif
110
111  DEBUGASSERT(sznum >= 0);
112  return (int)(sznum & (ssize_t) CARES_MASK_SINT);
113
114#ifdef __INTEL_COMPILER
115#  pragma warning(pop)
116#endif
117}
118
119/*
120** signed ssize_t to unsigned int
121*/
122
123unsigned int aresx_sztoui(ssize_t sznum)
124{
125#ifdef __INTEL_COMPILER
126#  pragma warning(push)
127#  pragma warning(disable:810) /* conversion may lose significant bits */
128#endif
129
130  DEBUGASSERT(sznum >= 0);
131  return (unsigned int)(sznum & (ssize_t) CARES_MASK_UINT);
132
133#ifdef __INTEL_COMPILER
134#  pragma warning(pop)
135#endif
136}
137
138#if defined(__INTEL_COMPILER) && defined(__unix__)
139
140int aresx_FD_ISSET(int fd, fd_set *fdset)
141{
142  #pragma warning(push)
143  #pragma warning(disable:1469) /* clobber ignored */
144  return FD_ISSET(fd, fdset);
145  #pragma warning(pop)
146}
147
148void aresx_FD_SET(int fd, fd_set *fdset)
149{
150  #pragma warning(push)
151  #pragma warning(disable:1469) /* clobber ignored */
152  FD_SET(fd, fdset);
153  #pragma warning(pop)
154}
155
156void aresx_FD_ZERO(fd_set *fdset)
157{
158  #pragma warning(push)
159  #pragma warning(disable:593) /* variable was set but never used */
160  FD_ZERO(fdset);
161  #pragma warning(pop)
162}
163
164unsigned short aresx_htons(unsigned short usnum)
165{
166#if (__INTEL_COMPILER == 910) && defined(__i386__)
167  return (unsigned short)(((usnum << 8) & 0xFF00) | ((usnum >> 8) & 0x00FF));
168#else
169  #pragma warning(push)
170  #pragma warning(disable:810) /* conversion may lose significant bits */
171  return htons(usnum);
172  #pragma warning(pop)
173#endif
174}
175
176unsigned short aresx_ntohs(unsigned short usnum)
177{
178#if (__INTEL_COMPILER == 910) && defined(__i386__)
179  return (unsigned short)(((usnum << 8) & 0xFF00) | ((usnum >> 8) & 0x00FF));
180#else
181  #pragma warning(push)
182  #pragma warning(disable:810) /* conversion may lose significant bits */
183  return ntohs(usnum);
184  #pragma warning(pop)
185#endif
186}
187
188#endif /* __INTEL_COMPILER && __unix__ */
189