1// © 2016 and later: Unicode, Inc. and others.
2// License & terms of use: http://www.unicode.org/copyright.html
3/*
4*******************************************************************************
5*
6* Copyright (C) 1997-2006, International Business Machines
7* Corporation and others. All Rights Reserved.
8*
9*******************************************************************************
10* file name: ures_cnv.c
11* encoding: UTF-8
12* tab size: 8 (not used)
13* indentation:4
14*
15* created on: 2004aug25
16* created by: Markus W. Scherer
17*
18* Character conversion functions moved here from uresbund.c
19*/
20
21#include "unicode/utypes.h"
22#include "unicode/putil.h"
23#include "unicode/ustring.h"
24#include "unicode/ucnv.h"
25#include "unicode/ures.h"
26#include "uinvchar.h"
27#include "ustr_cnv.h"
28
29U_CAPI UResourceBundle * U_EXPORT2
30ures_openU(const char16_t *myPath,
31 const char *localeID,
32 UErrorCode *status)
33{
34 char pathBuffer[1024];
35 int32_t length;
36 char *path = pathBuffer;
37
38 if(status==nullptr || U_FAILURE(*status)) {
39 return nullptr;
40 }
41 if(myPath==nullptr) {
42 path = nullptr;
43 }
44 else {
45 length=u_strlen(myPath);
46 if(length>=(int32_t)sizeof(pathBuffer)) {
47 *status=U_ILLEGAL_ARGUMENT_ERROR;
48 return nullptr;
49 } else if(uprv_isInvariantUString(myPath, length)) {
50 /*
51 * the invariant converter is sufficient for package and tree names
52 * and is more efficient
53 */
54 u_UCharsToChars(myPath, path, length+1); /* length+1 to include the NUL */
55 } else {
56#if !UCONFIG_NO_CONVERSION
57 /* use the default converter to support variant-character paths */
58 UConverter *cnv=u_getDefaultConverter(status);
59 length=ucnv_fromUChars(cnv, path, (int32_t)sizeof(pathBuffer), myPath, length, status);
60 u_releaseDefaultConverter(cnv);
61 if(U_FAILURE(*status)) {
62 return nullptr;
63 }
64 if(length>=(int32_t)sizeof(pathBuffer)) {
65 /* not NUL-terminated - path too long */
66 *status=U_ILLEGAL_ARGUMENT_ERROR;
67 return nullptr;
68 }
69#else
70 /* the default converter is not available */
71 *status=U_UNSUPPORTED_ERROR;
72 return nullptr;
73#endif
74 }
75 }
76
77 return ures_open(path, localeID, status);
78}
79