1 /* 2 * Copyright (C) 2012-2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef _LOGD_LOG_UTILS_H__ 18 #define _LOGD_LOG_UTILS_H__ 19 20 #include <sys/cdefs.h> 21 #include <sys/types.h> 22 23 #include <private/android_logger.h> 24 #include <sysutils/SocketClient.h> 25 #include <utils/FastStrcmp.h> 26 27 // Hijack this header as a common include file used by most all sources 28 // to report some utilities defined here and there. 29 30 namespace android { 31 32 // Furnished in main.cpp. Caller must own and free returned value 33 char* uidToName(uid_t uid); 34 void prdebug(const char* fmt, ...) __printflike(1, 2); 35 36 // Furnished in LogStatistics.cpp. 37 size_t sizesTotal(); 38 // Caller must own and free returned value 39 char* pidToName(pid_t pid); 40 char* tidToName(pid_t tid); 41 uid_t pidToUid(pid_t pid); 42 pid_t tidToPid(pid_t tid); 43 44 // Furnished in LogTags.cpp. Thread safe. 45 const char* tagToName(uint32_t tag); 46 void ReReadEventLogTags(); 47 48 // Furnished by LogKlog.cpp 49 char* log_strntok_r(char* s, ssize_t& len, char*& saveptr, ssize_t& sublen); 50 51 // needle should reference a string longer than 1 character 52 static inline const char* strnstr(const char* s, ssize_t len, 53 const char* needle) { 54 if (len <= 0) return nullptr; 55 56 const char c = *needle++; 57 const size_t needleLen = strlen(needle); 58 do { 59 do { 60 if (len <= (ssize_t)needleLen) return nullptr; 61 --len; 62 } while (*s++ != c); 63 } while (fastcmp<memcmp>(s, needle, needleLen)); 64 s--; 65 return s; 66 } 67 } 68 69 // Furnished in LogCommand.cpp 70 bool clientHasLogCredentials(uid_t uid, gid_t gid, pid_t pid); 71 bool clientHasLogCredentials(SocketClient* cli); 72 73 static inline bool worstUidEnabledForLogid(log_id_t id) { 74 return (id == LOG_ID_MAIN) || (id == LOG_ID_SYSTEM) || 75 (id == LOG_ID_RADIO) || (id == LOG_ID_EVENTS); 76 } 77 78 #endif // _LOGD_LOG_UTILS_H__ 79
