1/* 2 * Copyright (c) 2014 Apple Inc. All rights reserved. 3 * 4 * @APPLE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. Please obtain a copy of the License at 10 * http://www.opensource.apple.com/apsl/ and read it before using this 11 * file. 12 * 13 * The Original Code and all software distributed under the License are 14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 18 * Please see the License for the specific language governing rights and 19 * limitations under the License. 20 * 21 * @APPLE_LICENSE_HEADER_END@ 22 */ 23 24// Mac OS X: llvm-gcc -F<path-to-CFLite-framework> -framework CoreFoundation Examples/plconvert.c -o plconvert 25 26// Linux: clang -I/usr/local/include -L/usr/local/lib -lCoreFoundation plconvert.c -o plconvert 27 28/* 29 This example shows usage of CFString, CFData, and other CFPropertyList types. It takes two arguments: 30 1. A property list file to read, in either binary or XML property list format. 31 2. A file name to write a converted property list file to. 32 If the first input is binary, the output is XML and vice-versa. 33*/ 34 35#include <sys/types.h> 36#include <sys/stat.h> 37#include <fcntl.h> 38#include <string.h> 39#include <stdio.h> 40#include <unistd.h> 41 42#include <CoreFoundation/CoreFoundation.h> 43 44static void logIt(CFStringRef format, ...) { 45 va_list args; 46 va_start(args, format); 47 CFStringRef str = CFStringCreateWithFormatAndArguments(kCFAllocatorSystemDefault, NULL, format, args); 48 if (!str) return; 49 50 CFIndex blen = CFStringGetMaximumSizeForEncoding(CFStringGetLength(str), kCFStringEncodingUTF8); 51 char *buf = str ? (char *)malloc(blen + 1) : 0; 52 if (buf) { 53 Boolean converted = CFStringGetCString(str, buf, blen, kCFStringEncodingUTF8); 54 if (converted) { 55 // null-terminate 56 buf[blen] = 0; 57 printf("%s\n", buf); 58 } 59 } 60 if (buf) free(buf); 61 if (str) CFRelease(str); va_end(args); 62} 63 64static CFMutableDataRef createDataFromFile(const char *fname) { 65 int fd = open(fname, O_RDONLY); 66 CFMutableDataRef res = CFDataCreateMutable(kCFAllocatorSystemDefault, 0); 67 char buf[4096]; 68 69 ssize_t amountRead; 70 while ((amountRead = read(fd, buf, 4096)) > 0) { 71 CFDataAppendBytes(res, (const UInt8 *)buf, amountRead); 72 } 73 74 close(fd); 75 return res; 76} 77 78static bool writeDataToFile(CFDataRef data, const char *fname) { 79 int fd = open(fname, O_WRONLY | O_CREAT | O_TRUNC, 0666); 80 if (fd < 0) { 81 printf("There was an error creating the file: %d", errno); 82 return false; 83 } 84 int dataLen = CFDataGetLength(data); 85 int w = write(fd, CFDataGetBytePtr(data), dataLen); 86 fsync(fd); 87 close(fd); 88 if (w != dataLen) return false; 89 return true; 90} 91 92int main(int argc, char **argv) { 93 94 if (argc != 3) { 95 printf("Usage: plconvert <in file> <out file>\nIf the in file is an XML property list, convert to binary property list in out file. If the in file is a binary property list, convert to XML property list in out file.\n"); 96 } else { 97 CFMutableDataRef plistData = createDataFromFile(argv[1]); 98 if (!plistData) { 99 printf("Unable to create data from file name: %s", argv[1]); 100 } else { 101 CFPropertyListFormat fmt; 102 CFErrorRef err; 103 CFPropertyListRef plist = CFPropertyListCreateWithData(kCFAllocatorSystemDefault, (CFDataRef)plistData, 0, &fmt, &err); 104 if (!plist) { 105 logIt(CFSTR("Unable to create property list from data: %@"), err); 106 } else { 107 logIt(CFSTR("Property list contents:\n%@"), plist); 108 if (fmt == kCFPropertyListBinaryFormat_v1_0) { 109 logIt(CFSTR("Converting to XML property list at: %s"), argv[2]); 110 fmt = kCFPropertyListXMLFormat_v1_0; 111 } else if (fmt == kCFPropertyListXMLFormat_v1_0) { 112 logIt(CFSTR("Converting to binary property list at: %s"), argv[2]); 113 fmt = kCFPropertyListBinaryFormat_v1_0; 114 } else { 115 logIt(CFSTR("Unknown property list format! Not converting output format.")); 116 } 117 118 CFDataRef outputData = CFPropertyListCreateData(kCFAllocatorSystemDefault, plist, fmt, 0, &err); 119 if (!outputData) { 120 logIt(CFSTR("Unable to write property list to data: %@"), err); 121 } else { 122 bool success = writeDataToFile(outputData, argv[2]); 123 if (!success) { 124 logIt(CFSTR("Unable to write data to file")); 125 } 126 CFRelease(outputData); 127 } 128 CFRelease(plist); 129 } 130 CFRelease(plistData); 131 } 132 } 133} 134