1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
|
/* $Id: stringalloc.cpp $ */
/** @file
* IPRT - String Manipulation.
*/
/*
* Copyright (C) 2006-2019 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include <iprt/string.h>
#include "internal/iprt.h"
#ifndef IN_RING0
# include <iprt/alloca.h>
#endif
#include <iprt/assert.h>
#include <iprt/mem.h>
#include <iprt/err.h>
#include "internal/string.h"
RTDECL(char *) RTStrAllocTag(size_t cb, const char *pszTag)
{
char *psz = (char *)RTMemAllocTag(RT_MAX(cb, 1), pszTag);
if (psz)
*psz = '\0';
return psz;
}
RT_EXPORT_SYMBOL(RTStrAllocTag);
RTDECL(int) RTStrAllocExTag(char **ppsz, size_t cb, const char *pszTag)
{
char *psz = *ppsz = (char *)RTMemAllocTag(RT_MAX(cb, 1), pszTag);
if (psz)
{
*psz = '\0';
return VINF_SUCCESS;
}
return VERR_NO_STR_MEMORY;
}
RT_EXPORT_SYMBOL(RTStrAllocExTag);
RTDECL(int) RTStrReallocTag(char **ppsz, size_t cbNew, const char *pszTag)
{
char *pszOld = *ppsz;
if (!cbNew)
{
RTMemFree(pszOld);
*ppsz = NULL;
}
else if (pszOld)
{
char *pszNew = (char *)RTMemReallocTag(pszOld, cbNew, pszTag);
if (!pszNew)
return VERR_NO_STR_MEMORY;
pszNew[cbNew - 1] = '\0';
*ppsz = pszNew;
}
else
{
char *pszNew = (char *)RTMemAllocTag(cbNew, pszTag);
if (!pszNew)
return VERR_NO_STR_MEMORY;
pszNew[0] = '\0';
pszNew[cbNew - 1] = '\0';
*ppsz = pszNew;
}
return VINF_SUCCESS;
}
RT_EXPORT_SYMBOL(RTStrReallocTag);
RTDECL(void) RTStrFree(char *pszString)
{
if (pszString)
RTMemTmpFree(pszString);
}
RT_EXPORT_SYMBOL(RTStrFree);
RTDECL(char *) RTStrDupTag(const char *pszString, const char *pszTag)
{
#if defined(__cplusplus)
AssertPtr(pszString);
#endif
size_t cch = strlen(pszString) + 1;
char *psz = (char *)RTMemAllocTag(cch, pszTag);
if (psz)
memcpy(psz, pszString, cch);
return psz;
}
RT_EXPORT_SYMBOL(RTStrDupTag);
RTDECL(int) RTStrDupExTag(char **ppszString, const char *pszString, const char *pszTag)
{
#if defined(__cplusplus)
AssertPtr(ppszString);
AssertPtr(pszString);
#endif
size_t cch = strlen(pszString) + 1;
char *psz = (char *)RTMemAllocTag(cch, pszTag);
if (psz)
{
memcpy(psz, pszString, cch);
*ppszString = psz;
return VINF_SUCCESS;
}
return VERR_NO_MEMORY;
}
RT_EXPORT_SYMBOL(RTStrDupExTag);
RTDECL(char *) RTStrDupNTag(const char *pszString, size_t cchMax, const char *pszTag)
{
#if defined(__cplusplus)
AssertPtr(pszString);
#endif
char const *pszEnd = RTStrEnd(pszString, cchMax);
size_t cch = pszEnd ? (uintptr_t)pszEnd - (uintptr_t)pszString : cchMax;
char *pszDst = (char *)RTMemAllocTag(cch + 1, pszTag);
if (pszDst)
{
memcpy(pszDst, pszString, cch);
pszDst[cch] = '\0';
}
return pszDst;
}
RT_EXPORT_SYMBOL(RTStrDupNTag);
RTDECL(int) RTStrAAppendTag(char **ppsz, const char *pszAppend, const char *pszTag)
{
if (!pszAppend)
return VINF_SUCCESS;
return RTStrAAppendNTag(ppsz, pszAppend, RTSTR_MAX, pszTag);
}
RTDECL(int) RTStrAAppendNTag(char **ppsz, const char *pszAppend, size_t cchAppend, const char *pszTag)
{
size_t cchOrg;
char *pszNew;
if (!cchAppend)
return VINF_SUCCESS;
if (cchAppend == RTSTR_MAX)
cchAppend = strlen(pszAppend);
else
Assert(cchAppend == RTStrNLen(pszAppend, cchAppend));
cchOrg = *ppsz ? strlen(*ppsz) : 0;
pszNew = (char *)RTMemReallocTag(*ppsz, cchOrg + cchAppend + 1, pszTag);
if (!pszNew)
return VERR_NO_STR_MEMORY;
memcpy(&pszNew[cchOrg], pszAppend, cchAppend);
pszNew[cchOrg + cchAppend] = '\0';
*ppsz = pszNew;
return VINF_SUCCESS;
}
#ifndef IN_RING0
/* XXX Currently not needed anywhere. alloca() induces some linker problems for ring 0 code
* with newer versions of VCC */
RTDECL(int) RTStrAAppendExNVTag(char **ppsz, size_t cPairs, va_list va, const char *pszTag)
{
AssertPtr(ppsz);
if (!cPairs)
return VINF_SUCCESS;
/*
* Determine the length of each string and calc the new total.
*/
struct RTStrAAppendExNVStruct
{
const char *psz;
size_t cch;
} *paPairs = (struct RTStrAAppendExNVStruct *)alloca(cPairs * sizeof(*paPairs));
AssertReturn(paPairs, VERR_NO_STR_MEMORY);
size_t cchOrg = *ppsz ? strlen(*ppsz) : 0;
size_t cchNewTotal = cchOrg;
for (size_t i = 0; i < cPairs; i++)
{
const char *psz = va_arg(va, const char *);
size_t cch = va_arg(va, size_t);
AssertPtrNull(psz);
Assert(cch == RTSTR_MAX || cch == RTStrNLen(psz, cch));
if (cch == RTSTR_MAX)
cch = psz ? strlen(psz) : 0;
cchNewTotal += cch;
paPairs[i].cch = cch;
paPairs[i].psz = psz;
}
cchNewTotal++; /* '\0' */
/*
* Try reallocate the string.
*/
char *pszNew = (char *)RTMemReallocTag(*ppsz, cchNewTotal, pszTag);
if (!pszNew)
return VERR_NO_STR_MEMORY;
/*
* Do the appending.
*/
size_t off = cchOrg;
for (size_t i = 0; i < cPairs; i++)
{
memcpy(&pszNew[off], paPairs[i].psz, paPairs[i].cch);
off += paPairs[i].cch;
}
Assert(off + 1 == cchNewTotal);
pszNew[off] = '\0';
/* done */
*ppsz = pszNew;
return VINF_SUCCESS;
}
RT_EXPORT_SYMBOL(RTStrAAppendExNVTag);
#endif
RTDECL(int) RTStrATruncateTag(char **ppsz, size_t cchNew, const char *pszTag)
{
char *pszNew;
char *pszOld = *ppsz;
if (!cchNew)
{
if (pszOld && *pszOld)
{
*pszOld = '\0';
pszNew = (char *)RTMemReallocTag(pszOld, 1, pszTag);
if (pszNew)
*ppsz = pszNew;
}
}
else
{
char *pszZero;
AssertPtrReturn(pszOld, VERR_OUT_OF_RANGE);
AssertReturn(cchNew < ~(size_t)64, VERR_OUT_OF_RANGE);
pszZero = RTStrEnd(pszOld, cchNew + 63);
AssertReturn(!pszZero || (size_t)(pszZero - pszOld) >= cchNew, VERR_OUT_OF_RANGE);
pszOld[cchNew] = '\0';
if (!pszZero)
{
pszNew = (char *)RTMemReallocTag(pszOld, cchNew + 1, pszTag);
if (pszNew)
*ppsz = pszNew;
}
}
return VINF_SUCCESS;
}
RT_EXPORT_SYMBOL(RTStrATruncateTag);
|
