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source: vbox/trunk/src/libs/curl-8.7.1/lib/warnless.c@ 104083

Last change on this file since 104083 was 104083, checked in by vboxsync, 9 months ago

curl-8.7.1: Applied and adjusted our curl changes to 8.4.0. bugref:10639
  • Property svn:eol-style set to native
File size: 8.2 KB
Line 
1/***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
9 *
10 * This software is licensed as described in the file COPYING, which
11 * you should have received as part of this distribution. The terms
12 * are also available at https://curl.se/docs/copyright.html.
13 *
14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15 * copies of the Software, and permit persons to whom the Software is
16 * furnished to do so, under the terms of the COPYING file.
17 *
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
20 *
21 * SPDX-License-Identifier: curl
22 *
23 ***************************************************************************/
24
25#include "curl_setup.h"
26
27#if defined(__INTEL_COMPILER) && defined(__unix__)
28
29#ifdef HAVE_NETINET_IN_H
30# include <netinet/in.h>
31#endif
32#ifdef HAVE_ARPA_INET_H
33# include <arpa/inet.h>
34#endif
35
36#endif /* __INTEL_COMPILER && __unix__ */
37
38#include "warnless.h"
39
40#ifdef _WIN32
41#undef read
42#undef write
43#endif
44
45#include <limits.h>
46
47#define CURL_MASK_UCHAR ((unsigned char)~0)
48#define CURL_MASK_SCHAR (CURL_MASK_UCHAR >> 1)
49
50#define CURL_MASK_USHORT ((unsigned short)~0)
51#define CURL_MASK_SSHORT (CURL_MASK_USHORT >> 1)
52
53#define CURL_MASK_UINT ((unsigned int)~0)
54#define CURL_MASK_SINT (CURL_MASK_UINT >> 1)
55
56#define CURL_MASK_ULONG ((unsigned long)~0)
57#define CURL_MASK_SLONG (CURL_MASK_ULONG >> 1)
58
59#define CURL_MASK_UCOFFT ((unsigned CURL_TYPEOF_CURL_OFF_T)~0)
60#define CURL_MASK_SCOFFT (CURL_MASK_UCOFFT >> 1)
61
62#define CURL_MASK_USIZE_T ((size_t)~0)
63#define CURL_MASK_SSIZE_T (CURL_MASK_USIZE_T >> 1)
64
65/*
66** unsigned long to unsigned short
67*/
68
69unsigned short curlx_ultous(unsigned long ulnum)
70{
71#ifdef __INTEL_COMPILER
72# pragma warning(push)
73# pragma warning(disable:810) /* conversion may lose significant bits */
74#endif
75
76 DEBUGASSERT(ulnum <= (unsigned long) CURL_MASK_USHORT);
77 return (unsigned short)(ulnum & (unsigned long) CURL_MASK_USHORT);
78
79#ifdef __INTEL_COMPILER
80# pragma warning(pop)
81#endif
82}
83
84/*
85** unsigned long to unsigned char
86*/
87
88unsigned char curlx_ultouc(unsigned long ulnum)
89{
90#ifdef __INTEL_COMPILER
91# pragma warning(push)
92# pragma warning(disable:810) /* conversion may lose significant bits */
93#endif
94
95 DEBUGASSERT(ulnum <= (unsigned long) CURL_MASK_UCHAR);
96 return (unsigned char)(ulnum & (unsigned long) CURL_MASK_UCHAR);
97
98#ifdef __INTEL_COMPILER
99# pragma warning(pop)
100#endif
101}
102
103/*
104** unsigned size_t to signed curl_off_t
105*/
106
107curl_off_t curlx_uztoso(size_t uznum)
108{
109#ifdef __INTEL_COMPILER
110# pragma warning(push)
111# pragma warning(disable:810) /* conversion may lose significant bits */
112#elif defined(_MSC_VER)
113# pragma warning(push)
114# pragma warning(disable:4310) /* cast truncates constant value */
115#endif
116
117 DEBUGASSERT(uznum <= (size_t) CURL_MASK_SCOFFT);
118 return (curl_off_t)(uznum & (size_t) CURL_MASK_SCOFFT);
119
120#if defined(__INTEL_COMPILER) || defined(_MSC_VER)
121# pragma warning(pop)
122#endif
123}
124
125/*
126** unsigned size_t to signed int
127*/
128
129int curlx_uztosi(size_t uznum)
130{
131#ifdef __INTEL_COMPILER
132# pragma warning(push)
133# pragma warning(disable:810) /* conversion may lose significant bits */
134#endif
135
136 DEBUGASSERT(uznum <= (size_t) CURL_MASK_SINT);
137 return (int)(uznum & (size_t) CURL_MASK_SINT);
138
139#ifdef __INTEL_COMPILER
140# pragma warning(pop)
141#endif
142}
143
144/*
145** unsigned size_t to unsigned long
146*/
147
148unsigned long curlx_uztoul(size_t uznum)
149{
150#ifdef __INTEL_COMPILER
151# pragma warning(push)
152# pragma warning(disable:810) /* conversion may lose significant bits */
153#endif
154
155#if ULONG_MAX < SIZE_T_MAX
156 DEBUGASSERT(uznum <= (size_t) CURL_MASK_ULONG);
157#endif
158 return (unsigned long)(uznum & (size_t) CURL_MASK_ULONG);
159
160#ifdef __INTEL_COMPILER
161# pragma warning(pop)
162#endif
163}
164
165/*
166** unsigned size_t to unsigned int
167*/
168
169unsigned int curlx_uztoui(size_t uznum)
170{
171#ifdef __INTEL_COMPILER
172# pragma warning(push)
173# pragma warning(disable:810) /* conversion may lose significant bits */
174#endif
175
176#if UINT_MAX < SIZE_T_MAX
177 DEBUGASSERT(uznum <= (size_t) CURL_MASK_UINT);
178#endif
179 return (unsigned int)(uznum & (size_t) CURL_MASK_UINT);
180
181#ifdef __INTEL_COMPILER
182# pragma warning(pop)
183#endif
184}
185
186/*
187** signed long to signed int
188*/
189
190int curlx_sltosi(long slnum)
191{
192#ifdef __INTEL_COMPILER
193# pragma warning(push)
194# pragma warning(disable:810) /* conversion may lose significant bits */
195#endif
196
197 DEBUGASSERT(slnum >= 0);
198#if INT_MAX < LONG_MAX
199 DEBUGASSERT((unsigned long) slnum <= (unsigned long) CURL_MASK_SINT);
200#endif
201 return (int)(slnum & (long) CURL_MASK_SINT);
202
203#ifdef __INTEL_COMPILER
204# pragma warning(pop)
205#endif
206}
207
208/*
209** signed long to unsigned int
210*/
211
212unsigned int curlx_sltoui(long slnum)
213{
214#ifdef __INTEL_COMPILER
215# pragma warning(push)
216# pragma warning(disable:810) /* conversion may lose significant bits */
217#endif
218
219 DEBUGASSERT(slnum >= 0);
220#if UINT_MAX < LONG_MAX
221 DEBUGASSERT((unsigned long) slnum <= (unsigned long) CURL_MASK_UINT);
222#endif
223 return (unsigned int)(slnum & (long) CURL_MASK_UINT);
224
225#ifdef __INTEL_COMPILER
226# pragma warning(pop)
227#endif
228}
229
230/*
231** signed long to unsigned short
232*/
233
234unsigned short curlx_sltous(long slnum)
235{
236#ifdef __INTEL_COMPILER
237# pragma warning(push)
238# pragma warning(disable:810) /* conversion may lose significant bits */
239#endif
240
241 DEBUGASSERT(slnum >= 0);
242 DEBUGASSERT((unsigned long) slnum <= (unsigned long) CURL_MASK_USHORT);
243 return (unsigned short)(slnum & (long) CURL_MASK_USHORT);
244
245#ifdef __INTEL_COMPILER
246# pragma warning(pop)
247#endif
248}
249
250/*
251** unsigned size_t to signed ssize_t
252*/
253
254ssize_t curlx_uztosz(size_t uznum)
255{
256#ifdef __INTEL_COMPILER
257# pragma warning(push)
258# pragma warning(disable:810) /* conversion may lose significant bits */
259#endif
260
261 DEBUGASSERT(uznum <= (size_t) CURL_MASK_SSIZE_T);
262 return (ssize_t)(uznum & (size_t) CURL_MASK_SSIZE_T);
263
264#ifdef __INTEL_COMPILER
265# pragma warning(pop)
266#endif
267}
268
269/*
270** signed curl_off_t to unsigned size_t
271*/
272
273size_t curlx_sotouz(curl_off_t sonum)
274{
275#ifdef __INTEL_COMPILER
276# pragma warning(push)
277# pragma warning(disable:810) /* conversion may lose significant bits */
278#endif
279
280 DEBUGASSERT(sonum >= 0);
281 return (size_t)(sonum & (curl_off_t) CURL_MASK_USIZE_T);
282
283#ifdef __INTEL_COMPILER
284# pragma warning(pop)
285#endif
286}
287
288/*
289** signed ssize_t to signed int
290*/
291
292int curlx_sztosi(ssize_t sznum)
293{
294#ifdef __INTEL_COMPILER
295# pragma warning(push)
296# pragma warning(disable:810) /* conversion may lose significant bits */
297#endif
298
299 DEBUGASSERT(sznum >= 0);
300#if INT_MAX < SSIZE_T_MAX
301 DEBUGASSERT((size_t) sznum <= (size_t) CURL_MASK_SINT);
302#endif
303 return (int)(sznum & (ssize_t) CURL_MASK_SINT);
304
305#ifdef __INTEL_COMPILER
306# pragma warning(pop)
307#endif
308}
309
310/*
311** unsigned int to unsigned short
312*/
313
314unsigned short curlx_uitous(unsigned int uinum)
315{
316#ifdef __INTEL_COMPILER
317# pragma warning(push)
318# pragma warning(disable:810) /* conversion may lose significant bits */
319#endif
320
321 DEBUGASSERT(uinum <= (unsigned int) CURL_MASK_USHORT);
322 return (unsigned short) (uinum & (unsigned int) CURL_MASK_USHORT);
323
324#ifdef __INTEL_COMPILER
325# pragma warning(pop)
326#endif
327}
328
329/*
330** signed int to unsigned size_t
331*/
332
333size_t curlx_sitouz(int sinum)
334{
335#ifdef __INTEL_COMPILER
336# pragma warning(push)
337# pragma warning(disable:810) /* conversion may lose significant bits */
338#endif
339
340 DEBUGASSERT(sinum >= 0);
341 return (size_t) sinum;
342
343#ifdef __INTEL_COMPILER
344# pragma warning(pop)
345#endif
346}
347
348#ifdef USE_WINSOCK
349
350/*
351** curl_socket_t to signed int
352*/
353
354int curlx_sktosi(curl_socket_t s)
355{
356 return (int)((ssize_t) s);
357}
358
359/*
360** signed int to curl_socket_t
361*/
362
363curl_socket_t curlx_sitosk(int i)
364{
365 return (curl_socket_t)((ssize_t) i);
366}
367
368#endif /* USE_WINSOCK */
369
370#if defined(_WIN32)
371
372ssize_t curlx_read(int fd, void *buf, size_t count)
373{
374 return (ssize_t)read(fd, buf, curlx_uztoui(count));
375}
376
377ssize_t curlx_write(int fd, const void *buf, size_t count)
378{
379 return (ssize_t)write(fd, buf, curlx_uztoui(count));
380}
381
382#endif /* _WIN32 */
383
384/* Ensure that warnless.h redefinitions continue to have an effect
385 in "unity" builds. */
386#undef HEADER_CURL_WARNLESS_H_REDEFS
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