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// © 2016 and later: Unicode, Inc. and others. 
// License & terms of use: http://www.unicode.org/copyright.html 
/* 
******************************************************************************* 
* 
*   Copyright (C) 1997-2006, International Business Machines 
*   Corporation and others.  All Rights Reserved. 
* 
******************************************************************************* 
*   file name:  ures_cnv.c 
*   encoding:   UTF-8 
*   tab size:   8 (not used) 
*   indentation:4 
* 
*   created on: 2004aug25 
*   created by: Markus W. Scherer 
* 
*   Character conversion functions moved here from uresbund.c 
*/ 
 
#include "unicode/utypes.h" 
#include "unicode/putil.h" 
#include "unicode/ustring.h" 
#include "unicode/ucnv.h" 
#include "unicode/ures.h" 
#include "uinvchar.h" 
#include "ustr_cnv.h" 
 
U_CAPI UResourceBundle * U_EXPORT2 
ures_openU(const UChar *myPath,  
           const char *localeID,  
           UErrorCode *status) 
{ 
    char pathBuffer[1024]; 
    int32_t length; 
    char *path = pathBuffer; 
 
    if(status==NULL || U_FAILURE(*status)) { 
        return NULL; 
    } 
    if(myPath==NULL) { 
        path = NULL; 
    } 
    else { 
        length=u_strlen(myPath); 
        if(length>=(int32_t)sizeof(pathBuffer)) { 
            *status=U_ILLEGAL_ARGUMENT_ERROR; 
            return NULL; 
        } else if(uprv_isInvariantUString(myPath, length)) { 
            /* 
             * the invariant converter is sufficient for package and tree names 
             * and is more efficient 
             */ 
            u_UCharsToChars(myPath, path, length+1); /* length+1 to include the NUL */ 
        } else { 
#if !UCONFIG_NO_CONVERSION 
            /* use the default converter to support variant-character paths */ 
            UConverter *cnv=u_getDefaultConverter(status); 
            length=ucnv_fromUChars(cnv, path, (int32_t)sizeof(pathBuffer), myPath, length, status); 
            u_releaseDefaultConverter(cnv); 
            if(U_FAILURE(*status)) { 
                return NULL; 
            } 
            if(length>=(int32_t)sizeof(pathBuffer)) { 
                /* not NUL-terminated - path too long */ 
                *status=U_ILLEGAL_ARGUMENT_ERROR; 
                return NULL; 
            } 
#else 
            /* the default converter is not available */ 
            *status=U_UNSUPPORTED_ERROR; 
            return NULL; 
#endif 
        } 
    } 
 
    return ures_open(path, localeID, status); 
}