Jorge Lucangeli Obes | a6b034d | 2012-08-07 15:29:20 -0700 | [diff] [blame] | 1 | /* util.h |
| 2 | * Copyright (c) 2012 The Chromium OS Authors. All rights reserved. |
| 3 | * Use of this source code is governed by a BSD-style license that can be |
| 4 | * found in the LICENSE file. |
| 5 | * |
| 6 | * Logging and other utility functions. |
| 7 | */ |
| 8 | |
| 9 | #ifndef _UTIL_H_ |
| 10 | #define _UTIL_H_ |
| 11 | |
| 12 | #include <stdlib.h> |
Jorge Lucangeli Obes | f205fff | 2016-08-06 09:06:21 -0400 | [diff] [blame] | 13 | #include <sys/types.h> |
Jorge Lucangeli Obes | a6b034d | 2012-08-07 15:29:20 -0700 | [diff] [blame] | 14 | #include <syslog.h> |
Jorge Lucangeli Obes | f205fff | 2016-08-06 09:06:21 -0400 | [diff] [blame] | 15 | #include <unistd.h> |
Jorge Lucangeli Obes | a6b034d | 2012-08-07 15:29:20 -0700 | [diff] [blame] | 16 | |
Jorge Lucangeli Obes | a67bd6a | 2016-08-19 15:33:48 -0400 | [diff] [blame] | 17 | #ifdef __cplusplus |
| 18 | extern "C" { |
| 19 | #endif |
| 20 | |
Jorge Lucangeli Obes | a6b034d | 2012-08-07 15:29:20 -0700 | [diff] [blame] | 21 | #define die(_msg, ...) do { \ |
Jorge Lucangeli Obes | f205fff | 2016-08-06 09:06:21 -0400 | [diff] [blame] | 22 | syslog(LOG_ERR, "libminijail[%d]: " _msg, getpid(), ## __VA_ARGS__); \ |
Jorge Lucangeli Obes | 2f61ee4 | 2014-06-16 11:08:18 -0700 | [diff] [blame] | 23 | abort(); \ |
Jorge Lucangeli Obes | a6b034d | 2012-08-07 15:29:20 -0700 | [diff] [blame] | 24 | } while (0) |
| 25 | |
| 26 | #define pdie(_msg, ...) \ |
Mike Frysinger | b5d7b9f | 2015-01-09 03:50:15 -0500 | [diff] [blame] | 27 | die(_msg ": %m", ## __VA_ARGS__) |
Jorge Lucangeli Obes | a6b034d | 2012-08-07 15:29:20 -0700 | [diff] [blame] | 28 | |
| 29 | #define warn(_msg, ...) \ |
Jorge Lucangeli Obes | f205fff | 2016-08-06 09:06:21 -0400 | [diff] [blame] | 30 | syslog(LOG_WARNING, "libminijail[%d]: " _msg, getpid(), ## __VA_ARGS__) |
Jorge Lucangeli Obes | a6b034d | 2012-08-07 15:29:20 -0700 | [diff] [blame] | 31 | |
Jorge Lucangeli Obes | a205390 | 2016-08-02 12:08:15 -0400 | [diff] [blame] | 32 | #define pwarn(_msg, ...) \ |
| 33 | warn(_msg ": %m", ## __VA_ARGS__) |
| 34 | |
Jorge Lucangeli Obes | a6b034d | 2012-08-07 15:29:20 -0700 | [diff] [blame] | 35 | #define info(_msg, ...) \ |
Jorge Lucangeli Obes | f205fff | 2016-08-06 09:06:21 -0400 | [diff] [blame] | 36 | syslog(LOG_INFO, "libminijail[%d]: " _msg, getpid(), ## __VA_ARGS__) |
Jorge Lucangeli Obes | a6b034d | 2012-08-07 15:29:20 -0700 | [diff] [blame] | 37 | |
Jorge Lucangeli Obes | bda833c | 2012-07-31 16:25:56 -0700 | [diff] [blame] | 38 | extern const char *log_syscalls[]; |
| 39 | extern const size_t log_syscalls_len; |
| 40 | |
Dylan Reid | c4b0fdc | 2016-01-13 18:28:29 -0800 | [diff] [blame] | 41 | static inline int is_android() { |
Jorge Lucangeli Obes | 4b276a6 | 2016-01-07 14:31:33 -0800 | [diff] [blame] | 42 | #if defined(__ANDROID__) |
| 43 | return 1; |
| 44 | #else |
| 45 | return 0; |
| 46 | #endif |
| 47 | } |
| 48 | |
Jorge Lucangeli Obes | 2413f37 | 2016-04-06 18:43:10 -0700 | [diff] [blame] | 49 | static inline int running_with_asan() { |
Jorge Lucangeli Obes | 9e35c09 | 2016-04-11 13:30:08 -0700 | [diff] [blame] | 50 | #ifndef __has_feature |
| 51 | #define __has_feature(x) 0 |
| 52 | #endif |
| 53 | |
| 54 | #if __has_feature(address_sanitizer) |
Jorge Lucangeli Obes | 2413f37 | 2016-04-06 18:43:10 -0700 | [diff] [blame] | 55 | return 1; |
| 56 | #else |
| 57 | return 0; |
| 58 | #endif |
| 59 | } |
| 60 | |
Jorge Lucangeli Obes | a6b034d | 2012-08-07 15:29:20 -0700 | [diff] [blame] | 61 | int lookup_syscall(const char *name); |
| 62 | const char *lookup_syscall_name(int nr); |
Jorge Lucangeli Obes | 7b2e29c | 2016-08-04 12:21:03 -0400 | [diff] [blame] | 63 | |
Luis Hector Chavez | 40b2574 | 2013-09-22 19:44:06 -0700 | [diff] [blame] | 64 | long int parse_constant(char *constant_str, char **endptr); |
Jorge Lucangeli Obes | 7b2e29c | 2016-08-04 12:21:03 -0400 | [diff] [blame] | 65 | |
Jorge Lucangeli Obes | a6b034d | 2012-08-07 15:29:20 -0700 | [diff] [blame] | 66 | char *strip(char *s); |
Jorge Lucangeli Obes | 66cfc14 | 2012-11-30 15:42:52 -0800 | [diff] [blame] | 67 | char *tokenize(char **stringp, const char *delim); |
Jorge Lucangeli Obes | a6b034d | 2012-08-07 15:29:20 -0700 | [diff] [blame] | 68 | |
Jorge Lucangeli Obes | 7b2e29c | 2016-08-04 12:21:03 -0400 | [diff] [blame] | 69 | char *path_join(const char *external_path, const char *internal_path); |
Jorge Lucangeli Obes | f205fff | 2016-08-06 09:06:21 -0400 | [diff] [blame] | 70 | int write_proc_file(pid_t pid, const char *content, const char *basename); |
| 71 | int write_pid_to_path(pid_t pid, const char *path); |
Jorge Lucangeli Obes | 7b2e29c | 2016-08-04 12:21:03 -0400 | [diff] [blame] | 72 | |
| 73 | /* |
| 74 | * consumebytes: consumes @length bytes from a buffer @buf of length @buflength |
| 75 | * @length Number of bytes to consume |
| 76 | * @buf Buffer to consume from |
| 77 | * @buflength Size of @buf |
| 78 | * |
| 79 | * Returns a pointer to the base of the bytes, or NULL for errors. |
| 80 | */ |
| 81 | void *consumebytes(size_t length, char **buf, size_t *buflength); |
| 82 | |
| 83 | /* |
| 84 | * consumestr: consumes a C string from a buffer @buf of length @length |
| 85 | * @buf Buffer to consume |
| 86 | * @length Length of buffer |
| 87 | * |
| 88 | * Returns a pointer to the base of the string, or NULL for errors. |
| 89 | */ |
| 90 | char *consumestr(char **buf, size_t *buflength); |
| 91 | |
Jorge Lucangeli Obes | a67bd6a | 2016-08-19 15:33:48 -0400 | [diff] [blame] | 92 | #ifdef __cplusplus |
| 93 | }; /* extern "C" */ |
| 94 | #endif |
| 95 | |
Jorge Lucangeli Obes | a6b034d | 2012-08-07 15:29:20 -0700 | [diff] [blame] | 96 | #endif /* _UTIL_H_ */ |