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
curlx_ultous(unsigned long ulnum)69 unsigned 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
curlx_ultouc(unsigned long ulnum)88 unsigned 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
curlx_uztoso(size_t uznum)107 curl_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
curlx_uztosi(size_t uznum)129 int 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
curlx_uztoul(size_t uznum)148 unsigned 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
curlx_uztoui(size_t uznum)169 unsigned 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
curlx_sltosi(long slnum)190 int 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
curlx_sltoui(long slnum)212 unsigned 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
curlx_sltous(long slnum)234 unsigned 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
curlx_uztosz(size_t uznum)254 ssize_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
curlx_sotouz(curl_off_t sonum)273 size_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
curlx_sztosi(ssize_t sznum)292 int 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
curlx_uitous(unsigned int uinum)314 unsigned 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
curlx_sitouz(int sinum)333 size_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 #if defined(_WIN32)
349
curlx_read(int fd,void * buf,size_t count)350 ssize_t curlx_read(int fd, void *buf, size_t count)
351 {
352 return (ssize_t)read(fd, buf, curlx_uztoui(count));
353 }
354
curlx_write(int fd,const void * buf,size_t count)355 ssize_t curlx_write(int fd, const void *buf, size_t count)
356 {
357 return (ssize_t)write(fd, buf, curlx_uztoui(count));
358 }
359
360 #endif /* _WIN32 */
361
362 /* Ensure that warnless.h redefinitions continue to have an effect
363 in "unity" builds. */
364 #undef HEADER_CURL_WARNLESS_H_REDEFS
365
