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--- dyld/dyld-1340/common/Utilities.cpp
+++ /dev/null
@@ -1,112 +0,0 @@
-/*
- * Copyright (c) 2022 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 <string.h>
-#include <assert.h>
-#if __has_feature(ptrauth_calls)
- #include <ptrauth.h>
-#endif
-
-#include "Utilities.h"
-
-namespace dyld4 {
-// based on ANSI-C strstr()
-const char* Utils::strrstr(const char* str, const char* sub)
-{
- const size_t sublen = strlen(sub);
- for (const char* p = &str[strlen(str)]; p != str; --p) {
- if ( ::strncmp(p, sub, sublen) == 0 )
- return p;
- }
- return nullptr;
-}
-
-size_t Utils::concatenatePaths(char *path, const char *suffix, size_t pathsize)
-{
- if ( (path[strlen(path) - 1] == '/') && (suffix[0] == '/') )
- return strlcat(path, &suffix[1], pathsize); // avoid double slash when combining path
- else
- return strlcat(path, suffix, pathsize);
-}
-}; /* namespace dyld4 */
-
-void escapeCStringLiteral(const char* s, char* b, size_t bufferLength, char** end)
-{
- char* e = b + bufferLength - 1; // reserve one character for null terminator
- while (b < e) {
- char c = *s++;
- if ( c == '\n' ) {
- *b++ = '\\';
- *b++ = 'n';
- }
- else if ( c == '\r' ) {
- *b++ = '\\';
- *b++ = 'r';
- }
- else if ( c == '\t' ) {
- *b++ = '\\';
- *b++ = 't';
- }
- else if ( c == '\"' ) {
- *b++ = '\\';
- *b++ = '\"';
- }
- else if ( c == '\0' ) {
- break;
- }
- else {
- *b++ = c;
- }
- }
- *b = '\0';
- if ( end )
- *end = b;
-}
-
-
-#if __has_feature(ptrauth_calls)
-uint64_t signPointer(uint64_t unsignedAddr, void* loc, bool addrDiv, uint16_t diversity, ptrauth_key key)
-{
- // don't sign NULL
- if ( unsignedAddr == 0 )
- return 0;
-
- uint64_t extendedDiscriminator = diversity;
- if ( addrDiv )
- extendedDiscriminator = __builtin_ptrauth_blend_discriminator(loc, extendedDiscriminator);
- switch ( key ) {
- case ptrauth_key_asia:
- return (uint64_t)__builtin_ptrauth_sign_unauthenticated((void*)unsignedAddr, 0, extendedDiscriminator);
- case ptrauth_key_asib:
- return (uint64_t)__builtin_ptrauth_sign_unauthenticated((void*)unsignedAddr, 1, extendedDiscriminator);
- case ptrauth_key_asda:
- return (uint64_t)__builtin_ptrauth_sign_unauthenticated((void*)unsignedAddr, 2, extendedDiscriminator);
- case ptrauth_key_asdb:
- return (uint64_t)__builtin_ptrauth_sign_unauthenticated((void*)unsignedAddr, 3, extendedDiscriminator);
- default:
- assert(0 && "invalid signing key");
- }
-}
-#endif
-