The Tor Browser: intl/icu/source/io/ufile.c@fc2d59ddac77 (annotated)

intl/icu/source/io/ufile.c@fc2d59ddac77 (annotated)

intl/icu/source/io/ufile.c

Wed, 31 Dec 2014 07:22:50 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 07:22:50 +0100
branch: TOR_BUG_3246
changeset 4: fc2d59ddac77
permissions: -rw-r--r--

Correct previous dual key logic pending first delivery installment.

 /*
 ******************************************************************************
 *
 *   Copyright (C) 1998-2013, International Business Machines
 *   Corporation and others.  All Rights Reserved.
 *
 ******************************************************************************
 *
 * File ufile.c
 *
 * Modification History:
 *
 *   Date        Name        Description
 *   11/19/98    stephen     Creation.
 *   03/12/99    stephen     Modified for new C API.
 *   06/16/99    stephen     Changed T_LocaleBundle to u_locbund
 *   07/19/99    stephen     Fixed to use ucnv's default codepage.
 ******************************************************************************
 */
 /*
  * fileno is not declared when building with GCC in strict mode.
  */
 #if defined(__GNUC__) && defined(__STRICT_ANSI__)
 #undef __STRICT_ANSI__
 #endif
 #include "locmap.h"
 #include "unicode/ustdio.h"
 #include "ufile.h"
 #include "unicode/uloc.h"
 #include "unicode/ures.h"
 #include "unicode/ucnv.h"
 #include "cstring.h"
 #include "cmemory.h"
 #if U_PLATFORM_USES_ONLY_WIN32_API && !defined(fileno)
 /* Windows likes to rename Unix-like functions */
 #define fileno _fileno
 #endif
 static UFILE*
 finit_owner(FILE         *f,
               const char *locale,
               const char *codepage,
               UBool       take
               )
 {
     UErrorCode status = U_ZERO_ERROR;
     UFILE     *result;
     if(f == NULL) {
         return 0;
     }
     result = (UFILE*) uprv_malloc(sizeof(UFILE));
     if(result == NULL) {
         return 0;
     }
     uprv_memset(result, 0, sizeof(UFILE));
     result->fFileno = fileno(f);
 #if U_PLATFORM_USES_ONLY_WIN32_API
     if (0 <= result->fFileno && result->fFileno <= 2) {
         /* stdin, stdout and stderr need to be special cased for Windows 98 */
 #if _MSC_VER >= 1400
         result->fFile = &__iob_func()[_fileno(f)];
 #else
         result->fFile = &_iob[_fileno(f)];
 #endif
     }
     else
 #endif
     {
         result->fFile = f;
     }
     result->str.fBuffer = result->fUCBuffer;
     result->str.fPos    = result->fUCBuffer;
     result->str.fLimit  = result->fUCBuffer;
 #if !UCONFIG_NO_FORMATTING
         /* if locale is 0, use the default */
         if(u_locbund_init(&result->str.fBundle, locale) == 0) {
             /* DO NOT FCLOSE HERE! */
             uprv_free(result);
             return 0;
         }
 #endif
     /* If the codepage is not "" use the ucnv_open default behavior */
     if(codepage == NULL || *codepage != '\0') {
         result->fConverter = ucnv_open(codepage, &status);
     }
     /* else result->fConverter is already memset'd to NULL. */
     if(U_SUCCESS(status)) {
         result->fOwnFile = take;
     }
     else {
 #if !UCONFIG_NO_FORMATTING
         u_locbund_close(&result->str.fBundle);
 #endif
         /* DO NOT fclose here!!!!!! */
         uprv_free(result);
         result = NULL;
     }
     return result;
 }
 U_CAPI UFILE* U_EXPORT2 /* U_CAPI ... U_EXPORT2 added by Peter Kirk 17 Nov 2001 */
 u_finit(FILE          *f,
         const char    *locale,
         const char    *codepage)
 {
     return finit_owner(f, locale, codepage, FALSE);
 }
 U_CAPI UFILE* U_EXPORT2
 u_fadopt(FILE         *f,
         const char    *locale,
         const char    *codepage)
 {
     return finit_owner(f, locale, codepage, TRUE);
 }
 U_CAPI UFILE* U_EXPORT2 /* U_CAPI ... U_EXPORT2 added by Peter Kirk 17 Nov 2001 */
 u_fopen(const char    *filename,
         const char    *perm,
         const char    *locale,
         const char    *codepage)
 {
     UFILE     *result;
     FILE     *systemFile = fopen(filename, perm);
     if(systemFile == 0) {
         return 0;
     }
     result = finit_owner(systemFile, locale, codepage, TRUE);
     if (!result) {
         /* Something bad happened.
            Maybe the converter couldn't be opened. */
         fclose(systemFile);
     }
     return result; /* not a file leak */
 }
 U_CAPI UFILE* U_EXPORT2
 u_fstropen(UChar *stringBuf,
            int32_t      capacity,
            const char  *locale)
 {
     UFILE *result;
     if (capacity < 0) {
         return NULL;
     }
     result = (UFILE*) uprv_malloc(sizeof(UFILE));
     /* Null pointer test */
     if (result == NULL) {
     	return NULL; /* Just get out. */
     }
     uprv_memset(result, 0, sizeof(UFILE));
     result->str.fBuffer = stringBuf;
     result->str.fPos    = stringBuf;
     result->str.fLimit  = stringBuf+capacity;
 #if !UCONFIG_NO_FORMATTING
     /* if locale is 0, use the default */
     if(u_locbund_init(&result->str.fBundle, locale) == 0) {
         /* DO NOT FCLOSE HERE! */
         uprv_free(result);
         return 0;
     }
 #endif
     return result;
 }
 U_CAPI UBool U_EXPORT2
 u_feof(UFILE  *f)
 {
     UBool endOfBuffer;
     if (f == NULL) {
         return TRUE;
     }
     endOfBuffer = (UBool)(f->str.fPos >= f->str.fLimit);
     if (f->fFile != NULL) {
         return endOfBuffer && feof(f->fFile);
     }
     return endOfBuffer;
 }
 U_CAPI void U_EXPORT2
 u_fflush(UFILE *file)
 {
     ufile_flush_translit(file);
     ufile_flush_io(file);
     if (file->fFile) {
         fflush(file->fFile);
     }
     else if (file->str.fPos < file->str.fLimit) {
         *(file->str.fPos++) = 0;
     }
     /* TODO: flush input */
 }
 U_CAPI void
 u_frewind(UFILE *file)
 {
     u_fflush(file);
     ucnv_reset(file->fConverter);
     if (file->fFile) {
         rewind(file->fFile);
         file->str.fLimit = file->fUCBuffer;
         file->str.fPos   = file->fUCBuffer;
     }
     else {
         file->str.fPos = file->str.fBuffer;
     }
 }
 U_CAPI void U_EXPORT2 /* U_CAPI ... U_EXPORT2 added by Peter Kirk 17 Nov 2001 */
 u_fclose(UFILE *file)
 {
     if (file) {
         u_fflush(file);
         ufile_close_translit(file);
         if(file->fOwnFile)
             fclose(file->fFile);
 #if !UCONFIG_NO_FORMATTING
         u_locbund_close(&file->str.fBundle);
 #endif
         ucnv_close(file->fConverter);
         uprv_free(file);
     }
 }
 U_CAPI FILE* U_EXPORT2 /* U_CAPI ... U_EXPORT2 added by Peter Kirk 17 Nov 2001 */
 u_fgetfile(    UFILE         *f)
 {
     return f->fFile;
 }
 #if !UCONFIG_NO_FORMATTING
 U_CAPI const char*  U_EXPORT2 /* U_CAPI ... U_EXPORT2 added by Peter Kirk 17 Nov 2001 */
 u_fgetlocale(    UFILE        *file)
 {
     return file->str.fBundle.fLocale;
 }
 U_CAPI int32_t U_EXPORT2 /* U_CAPI ... U_EXPORT2 added by Peter Kirk 17 Nov 2001 */
 u_fsetlocale(UFILE      *file,
              const char *locale)
 {
     u_locbund_close(&file->str.fBundle);
     return u_locbund_init(&file->str.fBundle, locale) == 0 ? -1 : 0;
 }
 #endif
 U_CAPI const char* U_EXPORT2 /* U_CAPI ... U_EXPORT2 added by Peter Kirk 17 Nov 2001 */
 u_fgetcodepage(UFILE        *file)
 {
     UErrorCode     status = U_ZERO_ERROR;
     const char     *codepage = NULL;
     if (file->fConverter) {
         codepage = ucnv_getName(file->fConverter, &status);
         if(U_FAILURE(status))
             return 0;
     }
     return codepage;
 }
 U_CAPI int32_t U_EXPORT2 /* U_CAPI ... U_EXPORT2 added by Peter Kirk 17 Nov 2001 */
 u_fsetcodepage(    const char    *codepage,
                UFILE        *file)
 {
     UErrorCode status = U_ZERO_ERROR;
     int32_t retVal = -1;
     /* We use the normal default codepage for this system, and not the one for the locale. */
     if ((file->str.fPos == file->str.fBuffer) && (file->str.fLimit == file->str.fBuffer)) {
         ucnv_close(file->fConverter);
         file->fConverter = ucnv_open(codepage, &status);
         if(U_SUCCESS(status)) {
             retVal = 0;
         }
     }
     return retVal;
 }
 U_CAPI UConverter * U_EXPORT2 /* U_CAPI ... U_EXPORT2 added by Peter Kirk 17 Nov 2001 */
 u_fgetConverter(UFILE *file)
 {
     return file->fConverter;
 }
 #if !UCONFIG_NO_FORMATTING
 U_CAPI const UNumberFormat* U_EXPORT2 u_fgetNumberFormat(UFILE *file)
 {
     return u_locbund_getNumberFormat(&file->str.fBundle, UNUM_DECIMAL);
 }
 #endif

The Tor Browser / annotate

intl/icu/source/io/ufile.c@fc2d59ddac77 (annotated)

intl/icu/source/io/ufile.c