Battery: add dirty support for macOS

src/util/apple/cfdict_helpers.c

@@ -0,0 +1,45 @@
+#include "cfdict_helpers.h"
+
+const void* ffCfDictGetValue(CFMutableDictionaryRef dict, const char* key)
+{
+    CFStringRef cfKey = CFStringCreateWithCStringNoCopy(NULL, key, kCFStringEncodingASCII, kCFAllocatorNull);
+    return CFDictionaryGetValue(dict, cfKey);
+}
+
+bool ffCfDictGetString(CFMutableDictionaryRef dict, const char* key, FFstrbuf* result)
+{
+    CFStringRef cf = (CFStringRef)ffCfDictGetValue(dict, key);
+    if(cf == NULL || CFGetTypeID(cf) != CFStringGetTypeID())
+        return false;
+
+    uint32_t length = (uint32_t)CFStringGetLength(cf);
+    ffStrbufEnsureFree(result, length + 1);
+    if(CFStringGetCString(cf, result->chars, length + 1, kCFStringEncodingASCII))
+    {
+        result->length = length;
+        // CFStringGetCString ensures the buffer is NUL terminated
+        // https://developer.apple.com/documentation/corefoundation/1542721-cfstringgetcstring
+    }
+    return true;
+}
+
+bool ffCfDictGetBool(CFMutableDictionaryRef dict, const char* key, bool* result)
+{
+    CFBooleanRef cf = (CFBooleanRef)ffCfDictGetValue(dict, key);
+    if(cf == NULL || CFGetTypeID(cf) != CFNumberGetTypeID())
+        return false;
+
+    *result = CFBooleanGetValue(cf);
+    return true;
+}
+
+bool ffCfDictGetInt(CFMutableDictionaryRef dict, const char* key, int* result)
+{
+    CFNumberRef cf = (CFNumberRef)ffCfDictGetValue(dict, key);
+    if (cf == NULL || CFGetTypeID(cf) != CFStringGetTypeID())
+        return false;
+
+    if(!CFNumberGetValue(cf, kCFNumberSInt32Type, result))
+        return false;
+    return true;
+}

src/util/apple/cfdict_helpers.h

@@ -0,0 +1,14 @@
+#pragma once
+
+#ifndef FASTFETCH_INCLUDED_cfdict_helpers
+#define FASTFETCH_INCLUDED_cfdict_helpers
+
+#include "fastfetch.h"
+#include <CoreFoundation/CoreFoundation.h>
+
+const void* ffCfDictGetValue(CFMutableDictionaryRef dict, const char* str);
+bool ffCfDictGetString(CFMutableDictionaryRef dict, const char* key, FFstrbuf* result);
+bool ffCfDictGetBool(CFMutableDictionaryRef dict, const char* key, bool* result);
+bool ffCfDictGetInt(CFMutableDictionaryRef dict, const char* key, int* result);
+
+#endif