+/*
+ * Copyright (c) 2010-2012,2014 Apple 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@
+ */
+
+
+#include "misc.h"
+
+
+// NOTE: the return may or allocate a fair bit more space then it needs.
+// Use it for short lived conversions (or strdup the result).
+char *utf8(CFStringRef s) {
+ CFIndex sz = CFStringGetMaximumSizeForEncoding(CFStringGetLength(s), kCFStringEncodingUTF8) + 1;
+ CFIndex used = 0;
+ UInt8 *buf = (UInt8 *)malloc(sz);
+ if (!buf) {
+ return NULL;
+ }
+ CFStringGetBytes(s, CFRangeMake(0, CFStringGetLength(s)), kCFStringEncodingUTF8, '?', FALSE, buf, sz, &used);
+ buf[used] = 0;
+
+ return (char*)buf;
+}
+
+void CFfprintf(FILE *f, const char *format, ...) {
+ va_list ap;
+ va_start(ap, format);
+
+ CFStringRef fmt = CFStringCreateWithCString(NULL, format, kCFStringEncodingUTF8);
+ CFStringRef str = CFStringCreateWithFormatAndArguments(NULL, NULL, fmt, ap);
+ va_end(ap);
+ CFRelease(fmt);
+
+ CFIndex sz = CFStringGetMaximumSizeForEncoding(CFStringGetLength(str), kCFStringEncodingUTF8);
+ sz += 1;
+ CFIndex used = 0;
+ unsigned char *buf;
+ bool needs_free = false;
+ if (sz < 1024) {
+ buf = alloca(sz);
+ } else {
+ buf = malloc(sz);
+ needs_free = true;
+ }
+ if (buf) {
+ CFStringGetBytes(str, CFRangeMake(0, CFStringGetLength(str)), kCFStringEncodingUTF8, '?', FALSE, buf, sz, &used);
+ } else {
+ buf = (unsigned char *)"malloc failue during CFfprintf\n";
+ }
+
+ fwrite(buf, 1, used, f);
+ if (needs_free) {
+ free(buf);
+ }
+
+ CFRelease(str);
+}
+
+CFErrorRef fancy_error(CFStringRef domain, CFIndex code, CFStringRef description) {
+ const void *v_ekey = kCFErrorDescriptionKey;
+ const void *v_description = description;
+ CFErrorRef err = CFErrorCreateWithUserInfoKeysAndValues(NULL, domain, code, &v_ekey, &v_description, 1);
+
+ return err;
+}
+
+static
+void add_t2ca(CFMutableDictionaryRef t2ca, CFStringRef t, CFStringRef a) {
+ CFMutableSetRef ca = (CFMutableSetRef)CFDictionaryGetValue(t2ca, t);
+ if (!ca) {
+ ca = CFSetCreateMutable(NULL, 0, &kCFCopyStringSetCallBacks);
+ CFDictionarySetValue(t2ca, t, ca);
+ }
+ CFSetAddValue(ca, a);
+}
+
+void CFSafeRelease(CFTypeRef object) {
+ if (object) {
+ CFRelease(object);
+ }
+}
+
+void graphviz(FILE *f, SecTransformRef tr) {
+ CFDictionaryRef d = SecTransformCopyExternalRepresentation(tr);
+
+ CFfprintf(f, "digraph TR {\n\tnode [shape=plaintext];\n\n");
+ CFIndex i, j;
+ CFArrayRef transforms = CFDictionaryGetValue(d, CFSTR("TRANSFORMS"));
+ CFArrayRef connections = CFDictionaryGetValue(d, CFSTR("ARRAY"));
+
+
+ // map transforms to connected attributes
+ CFMutableDictionaryRef t2ca = CFDictionaryCreateMutable(NULL, 0, &kCFCopyStringDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
+ for(i = 0; i < CFArrayGetCount(connections); i++) {
+ CFDictionaryRef c = CFArrayGetValueAtIndex(connections, i);
+
+ CFStringRef t_from = CFDictionaryGetValue(c, CFSTR("FROM_NAME"));
+ CFStringRef t_to = CFDictionaryGetValue(c, CFSTR("TO_NAME"));
+ CFStringRef a_from = CFDictionaryGetValue(c, CFSTR("FROM_ATTRIBUTE"));
+ CFStringRef a_to = CFDictionaryGetValue(c, CFSTR("TO_ATTRIBUTE"));
+
+ add_t2ca(t2ca, t_from, a_from);
+ add_t2ca(t2ca, t_to, a_to);
+ }
+
+
+ for(i = 0; i < CFArrayGetCount(transforms); i++) {
+ CFDictionaryRef t = CFArrayGetValueAtIndex(transforms, i);
+ // NAME STATE(dict) TYPE
+ CFStringRef name = CFDictionaryGetValue(t, CFSTR("NAME"));
+
+ CFfprintf(f, "\tsubgraph \"cluster_%@\"{\n", name);
+
+ CFMutableSetRef ca = (CFMutableSetRef)CFDictionaryGetValue(t2ca, name);
+ if (ca) {
+ CFIndex cnt = CFSetGetCount(ca);
+ CFStringRef *attrs = malloc(cnt * sizeof(CFStringRef));
+ CFSetGetValues(ca, (const void **)attrs);
+
+ for(j = 0; j < cnt; j++) {
+ CFfprintf(f, "\t\t\"%@#%@\" [label=\"%@\"];\n", name, attrs[j], attrs[j]);
+ }
+ CFfprintf(f, "\t\t\"%@\" [fontcolor=blue, fontsize=20];\n\t}\n");
+ }
+ }
+
+ CFfprintf(f, "\n");
+
+ for(i = 0; i < CFArrayGetCount(connections); i++) {
+ CFDictionaryRef c = CFArrayGetValueAtIndex(connections, i);
+
+ CFStringRef t_from = CFDictionaryGetValue(c, CFSTR("FROM_NAME"));
+ CFStringRef t_to = CFDictionaryGetValue(c, CFSTR("TO_NAME"));
+ CFStringRef a_from = CFDictionaryGetValue(c, CFSTR("FROM_ATTRIBUTE"));
+ CFStringRef a_to = CFDictionaryGetValue(c, CFSTR("TO_ATTRIBUTE"));
+
+ CFfprintf(f, "\t\"%@#%@\" -> \"%@#%@\";\n", t_from, a_from, t_to, a_to);
+ }
+
+ CFfprintf(f, "}\n");
+
+ CFfprintf(f, "\n/*\n%@\n/*\n", d);
+}
projects / apple / security.git / blobdiff