X-Git-Url: https://git.saurik.com/apple/security.git/blobdiff_plain/c38e3ce98599a410a47dc10253faa4d5830f13b2..427c49bcad63d042b29ada2ac27e3dfc4845c779:/authd/authutilities.c?ds=inline

diff --git a/authd/authutilities.c b/authd/authutilities.c
new file mode 100644
index 00000000..52e4b0fe
--- /dev/null
+++ b/authd/authutilities.c
@@ -0,0 +1,283 @@
+/* Copyright (c) 2012 Apple Inc. All rights reserved. */
+
+#include "authutilities.h"
+#include "authd_private.h"
+#include "debugging.h"
+
+#include <AssertMacros.h>
+#include <assert.h>
+#include <syslog.h>
+
+xpc_object_t
+SerializeItemSet(const AuthorizationItemSet * itemSet)
+{
+    xpc_object_t set = NULL;
+    require_quiet(itemSet != NULL, done);
+    require_quiet(itemSet->count != 0, done);
+    
+    set = xpc_array_create(NULL, 0);
+    require(set != NULL, done);
+    
+    for (uint32_t i = 0; i < itemSet->count; i++) {
+        xpc_object_t item = xpc_dictionary_create(NULL, NULL, 0);
+        require(item != NULL, done);
+        
+        xpc_dictionary_set_string(item, AUTH_XPC_ITEM_NAME, itemSet->items[i].name);
+        xpc_dictionary_set_uint64(item, AUTH_XPC_ITEM_FLAGS, itemSet->items[i].flags);
+        xpc_dictionary_set_data(item, AUTH_XPC_ITEM_VALUE, itemSet->items[i].value, itemSet->items[i].valueLength);
+        xpc_array_set_value(set, XPC_ARRAY_APPEND, item);
+        xpc_release(item);
+    }
+    
+done:
+    return set;
+}
+
+AuthorizationItemSet *
+DeserializeItemSet(const xpc_object_t data)
+{
+    AuthorizationItemSet * set = NULL;
+    require_quiet(data != NULL, done);
+    xpc_retain(data);
+    require(xpc_get_type(data) == XPC_TYPE_ARRAY, done);
+    
+    set = (AuthorizationItemSet*)calloc(1u, sizeof(AuthorizationItemSet));
+    require(set != NULL, done);
+    
+    set->count = (uint32_t)xpc_array_get_count(data);
+    if (set->count) {
+        set->items = (AuthorizationItem*)calloc(set->count, sizeof(AuthorizationItem));
+        require_action(set->items != NULL, done, set->count = 0);
+        
+        xpc_array_apply(data, ^bool(size_t index, xpc_object_t value) {
+            require(xpc_get_type(value) == XPC_TYPE_DICTIONARY, done);
+            size_t nameLen = 0;
+            const char * name = xpc_dictionary_get_string(value, AUTH_XPC_ITEM_NAME);
+            if (name) {
+                nameLen = strlen(name) + 1;
+                set->items[index].name = calloc(1u, nameLen);
+                require(set->items[index].name != NULL, done);
+                
+                strlcpy((char*)set->items[index].name, name, nameLen);
+            }
+            set->items[index].flags = (uint32_t)xpc_dictionary_get_uint64(value, AUTH_XPC_ITEM_FLAGS);
+            size_t len;
+            const void * valueData = xpc_dictionary_get_data(value, AUTH_XPC_ITEM_VALUE, &len);
+            set->items[index].valueLength = len;
+            if (len) {
+                set->items[index].value = calloc(1u, len);
+                require(set->items[index].value != NULL, done);
+                
+                memcpy(set->items[index].value, valueData, len);
+            }
+        done:
+            return true;
+        });
+    }
+    
+done:
+    if (data != NULL) {
+        xpc_release(data);
+    }
+    return set;
+}
+
+void FreeItemSet(AuthorizationItemSet * itemSet)
+{
+    if (!itemSet) { return; }
+    
+    for(uint32_t i = 0; i < itemSet->count; i++ ) {
+        if (itemSet->items[i].name) {
+            free((void*)itemSet->items[i].name);
+        }
+        if (itemSet->items[i].value) {
+            free(itemSet->items[i].value);
+        }
+    }
+    if (itemSet->items) {
+        free(itemSet->items);
+    }
+
+    free(itemSet);
+}
+
+char *
+_copy_cf_string(CFTypeRef str, const char * defaultValue)
+{
+    char * result = NULL;
+    require(str != NULL, done);   
+    require(CFGetTypeID(str) == CFStringGetTypeID(), done);
+    
+    CFIndex length = CFStringGetLength(str);
+    CFIndex size = CFStringGetMaximumSizeForEncoding(length, kCFStringEncodingUTF8) + 1;
+    
+    result = (char*)calloc(1u, (size_t)size);
+    check(result != NULL);
+    
+    if (!CFStringGetCString(str, result, size, kCFStringEncodingUTF8)) {
+        free_safe(result);
+    }
+    
+done:
+    if (result == NULL && defaultValue) {
+        size_t len = strlen(defaultValue);
+        result = (char*)calloc(1u, len);
+        check(result != NULL);
+        
+        strlcpy(result, defaultValue, len);
+    }
+    
+    return result;
+}
+
+int64_t
+_get_cf_int(CFTypeRef num, int64_t defaultValue)
+{
+    int64_t result = defaultValue;
+    require(num != NULL, done);
+    require(CFGetTypeID(num) == CFNumberGetTypeID(), done);
+    
+    if (!CFNumberGetValue(num, kCFNumberSInt64Type, &result)) {
+        result = defaultValue;
+    }
+    
+done:
+    return result;
+}
+
+bool
+_get_cf_bool(CFTypeRef value, bool defaultValue)
+{
+    bool result = defaultValue;
+    require(value != NULL, done);
+    require(CFGetTypeID(value) == CFBooleanGetTypeID(), done);
+    
+    result = CFBooleanGetValue(value);
+    
+done:
+    return result;
+}
+
+bool
+_compare_string(const char * str1, const char * str2)
+{
+    if (!(str1 == str2)) {  // compare null or same pointer
+        if (str1 && str2) { // check both are non null
+            if (strcasecmp(str1, str2) != 0) { // compare strings
+                return false; // return false if not equal
+            }
+        } else {
+            return false; // return false if one null
+        }
+    }
+    
+    return true;
+}
+
+char *
+_copy_string(const char * str)
+{
+    char * result = NULL;
+    require(str != NULL, done);
+    
+    size_t len = strlen(str) + 1;
+    result = calloc(1u, len);
+    require(result != NULL, done);
+    
+    strlcpy(result, str, len);
+    
+done:
+    return result;
+}
+
+void *
+_copy_data(const void * data, size_t dataLen)
+{
+    void * result = NULL;
+    require(data != NULL, done);
+    
+    result = calloc(1u, dataLen);
+    require(result != NULL, done);
+    
+    memcpy(result, data, dataLen);
+    
+done:
+    return result;
+}
+
+bool _cf_set_iterate(CFSetRef set, bool(^iterator)(CFTypeRef value))
+{
+    bool result = false;
+    CFTypeRef* values = NULL;
+    
+    require(set != NULL, done);
+    
+    CFIndex count = CFSetGetCount(set);
+    values = calloc((size_t)count, sizeof(CFTypeRef));
+    require(values != NULL, done);
+    
+    CFSetGetValues(set, values);
+    for (CFIndex i = 0; i < count; i++) {
+        result = iterator(values[i]);
+        if (!result) {
+            break;
+        }
+    }
+
+done:
+    free_safe(values);
+    return result;
+}
+
+bool _cf_bag_iterate(CFBagRef bag, bool(^iterator)(CFTypeRef value))
+{
+    bool result = false;
+    CFTypeRef* values = NULL;
+
+    require(bag != NULL, done);
+
+    CFIndex count = CFBagGetCount(bag);
+    values = calloc((size_t)count, sizeof(CFTypeRef));
+    require(values != NULL, done);
+
+    CFBagGetValues(bag, values);
+    for (CFIndex i = 0; i < count; i++) {
+        result = iterator(values[i]);
+        if (!result) {
+            break;
+        }
+    }
+
+done:
+    free_safe(values);
+    return result;
+}
+
+bool _cf_dictionary_iterate(CFDictionaryRef dict, bool(^iterator)(CFTypeRef key, CFTypeRef value))
+{
+    bool result = false;
+    CFTypeRef* keys = NULL;
+    CFTypeRef* values = NULL;
+    
+    require(dict != NULL, done);
+    
+    CFIndex count = CFDictionaryGetCount(dict);
+    keys = calloc((size_t)count, sizeof(CFTypeRef));
+    require(keys != NULL, done);
+    
+    values = calloc((size_t)count, sizeof(CFTypeRef));
+    require(values != NULL, done);
+    
+    CFDictionaryGetKeysAndValues(dict, keys, values);
+    for (CFIndex i = 0; i < count; i++) {
+        result = iterator(keys[i], values[i]);
+        if (!result) {
+            break;
+        }
+    }
+
+done:
+    free_safe(keys);
+    free_safe(values);
+    return result;
+}