-/*
- * Copyright (c) 2005 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
-/* CFStringDefaultEncoding.h
- Copyright (c) 1998-2005, Apple, Inc. All rights reserved.
-*/
-
-/* This file defines static inline functions used both by CarbonCore & CF. */
-
-#include <CoreFoundation/CFBase.h>
-#if defined(__MACH__)
-#include <stdlib.h>
-#include <fcntl.h>
-#include <pwd.h>
-#include <sys/param.h>
-#include <unistd.h>
-#include <string.h>
-#include <stdio.h>
-
-#if defined(__cplusplus)
-extern "C" {
-#endif
-
-#define __kCFUserEncodingEnvVariableName ("__CF_USER_TEXT_ENCODING")
-#define __kCFMaxDefaultEncodingFileLength (24)
-#define __kCFUserEncodingFileName ("/.CFUserTextEncoding")
-
-/* This function is used to obtain users' default script/region code.
- The function first looks at environment variable __kCFUserEncodingEnvVariableName, then, reads the configuration file in user's home directory.
-*/
-CF_INLINE void __CFStringGetUserDefaultEncoding(UInt32 *oScriptValue, UInt32 *oRegionValue) {
- char *stringValue;
- char buffer[__kCFMaxDefaultEncodingFileLength];
- int uid = getuid();
-
- if ((stringValue = getenv(__kCFUserEncodingEnvVariableName)) != NULL) {
- if ((uid == strtol(stringValue, &stringValue, 0)) && (':' == *stringValue)) {
- ++stringValue;
- } else {
- stringValue = NULL;
- }
- }
-
- if ((stringValue == NULL) && ((uid > 0) || getenv("HOME"))) {
- struct passwd *passwdp;
-
- if ((passwdp = getpwuid((uid_t)uid))) {
- char filename[MAXPATHLEN + 1];
- int fd;
-
- strcpy(filename, passwdp->pw_dir);
- strcat(filename, __kCFUserEncodingFileName);
-
- if ((fd = open(filename, O_RDONLY, 0)) == -1) {
- // Cannot open the file. Let's fallback to smRoman/verUS
- snprintf(filename, sizeof(filename), "%s=0x%X:0:0", __kCFUserEncodingEnvVariableName, uid);
- putenv(filename);
- } else {
- int readSize;
-
- // cjk: We do not turn on F_NOCACHE on the fd here, because
- // many processes read this file on startup, and caching the
- // is probably a good thing, for the system as a whole.
- readSize = read(fd, buffer, __kCFMaxDefaultEncodingFileLength - 1);
- buffer[(readSize < 0 ? 0 : readSize)] = '\0';
- close(fd);
- stringValue = buffer;
-
- // Well, we already have a buffer, let's reuse it
- snprintf(filename, sizeof(filename), "%s=0x%X:%s", __kCFUserEncodingEnvVariableName, uid, buffer);
- putenv(filename);
- }
- }
- }
-
- if (stringValue) {
- *oScriptValue = strtol(stringValue, &stringValue, 0);
- if (*stringValue == ':') {
- if (oRegionValue) *oRegionValue = strtol(++stringValue, NULL, 0);
- return;
- }
- }
-
- // Falling back
- *oScriptValue = 0; // smRoman
- if (oRegionValue) *oRegionValue = 0; // verUS
-}
-
-CF_INLINE uint32_t __CFStringGetInstallationRegion() {
- char *stringValue = NULL;
- char buffer[__kCFMaxDefaultEncodingFileLength];
- struct passwd *passwdp;
-
- if ((passwdp = getpwuid((uid_t)0))) {
- char filename[MAXPATHLEN + 1];
- int fd;
-
- strcpy(filename, passwdp->pw_dir);
- strcat(filename, __kCFUserEncodingFileName);
-
- if ((fd = open(filename, O_RDONLY, 0)) != -1) {
- int readSize;
-
- // cjk: We do not turn on F_NOCACHE on the fd here, because
- // many processes read this file on startup, and caching the
- // is probably a good thing, for the system as a whole.
- readSize = read(fd, buffer, __kCFMaxDefaultEncodingFileLength - 1);
- buffer[(readSize < 0 ? 0 : readSize)] = '\0';
- close(fd);
- stringValue = buffer;
- }
- }
-
- if (stringValue) {
- (void)strtol(stringValue, &stringValue, 0);
- if (*stringValue == ':') return strtol(++stringValue, NULL, 0);
- }
-
- return 0; // verUS
-}
-
-CF_INLINE void __CFStringGetInstallationEncodingAndRegion(uint32_t *encoding, uint32_t *region) {
- char *stringValue = NULL;
- char buffer[__kCFMaxDefaultEncodingFileLength];
- struct passwd *passwdp;
-
- *encoding = 0; *region = 0;
-
- if ((passwdp = getpwuid((uid_t)0))) {
- char filename[MAXPATHLEN + 1];
- int fd;
-
- strcpy(filename, passwdp->pw_dir);
- strcat(filename, __kCFUserEncodingFileName);
-
- if ((fd = open(filename, O_RDONLY, 0)) != -1) {
- int readSize;
-
- // cjk: We do not turn on F_NOCACHE on the fd here, because
- // many processes read this file on startup, and caching the
- // is probably a good thing, for the system as a whole.
- readSize = read(fd, buffer, __kCFMaxDefaultEncodingFileLength - 1);
- buffer[(readSize < 0 ? 0 : readSize)] = '\0';
- close(fd);
- stringValue = buffer;
- }
- }
-
- if (stringValue) {
- *encoding = strtol(stringValue, &stringValue, 0);
- if (*stringValue == ':') *region = strtol(++stringValue, NULL, 0);
- }
-}
-
-CF_INLINE void __CFStringSaveUserDefaultEncoding(UInt32 iScriptValue, UInt32 iRegionValue) {
- struct passwd *passwdp;
-
- if ((passwdp = getpwuid(getuid()))) {
- char filename[MAXPATHLEN + 1];
- int fd;
-
- strcpy(filename, passwdp->pw_dir);
- strcat(filename, __kCFUserEncodingFileName);
-
- // In case, file exists
- (void)unlink(filename);
-
- if ((fd = open(filename, O_WRONLY|O_CREAT, 0400)) != -1) {
- char buffer[__kCFMaxDefaultEncodingFileLength];
- unsigned int writeSize;
-
- writeSize = snprintf(buffer, __kCFMaxDefaultEncodingFileLength, "0x%X:0x%X", (unsigned int)iScriptValue, (unsigned int)iRegionValue);
- (void)write(fd, buffer, (writeSize > __kCFMaxDefaultEncodingFileLength ? __kCFMaxDefaultEncodingFileLength : writeSize));
- close(fd);
- }
- }
-}
-
-#if defined(__cplusplus)
-}
-#endif
-
-#endif /* __MACH__ */
projects / apple / cf.git / blobdiff