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|
/*
american fuzzy lop++ - debug / error handling macros
----------------------------------------------------
Originally written by Michal Zalewski
Now maintained by Marc Heuse <mh@mh-sec.de>,
Heiko Eissfeldt <heiko.eissfeldt@hexco.de>,
Andrea Fioraldi <andreafioraldi@gmail.com>,
Dominik Maier <mail@dmnk.co>
Copyright 2016, 2017 Google Inc. All rights reserved.
Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at:
https://www.apache.org/licenses/LICENSE-2.0
*/
#ifndef _HAVE_DEBUG_H
#define _HAVE_DEBUG_H
#include <errno.h>
#include "types.h"
#include "config.h"
/*******************
* Terminal colors *
*******************/
#ifndef MESSAGES_TO_STDOUT
#define MESSAGES_TO_STDOUT
#endif
#ifdef USE_COLOR
#define cBLK "\x1b[0;30m"
#define cRED "\x1b[0;31m"
#define cGRN "\x1b[0;32m"
#define cBRN "\x1b[0;33m"
#define cBLU "\x1b[0;34m"
#define cMGN "\x1b[0;35m"
#define cCYA "\x1b[0;36m"
#define cLGR "\x1b[0;37m"
#define cGRA "\x1b[1;90m"
#define cLRD "\x1b[1;91m"
#define cLGN "\x1b[1;92m"
#define cYEL "\x1b[1;93m"
#define cLBL "\x1b[1;94m"
#define cPIN "\x1b[1;95m"
#define cLCY "\x1b[1;96m"
#define cBRI "\x1b[1;97m"
#define cRST "\x1b[0m"
#define bgBLK "\x1b[40m"
#define bgRED "\x1b[41m"
#define bgGRN "\x1b[42m"
#define bgBRN "\x1b[43m"
#define bgBLU "\x1b[44m"
#define bgMGN "\x1b[45m"
#define bgCYA "\x1b[46m"
#define bgLGR "\x1b[47m"
#define bgGRA "\x1b[100m"
#define bgLRD "\x1b[101m"
#define bgLGN "\x1b[102m"
#define bgYEL "\x1b[103m"
#define bgLBL "\x1b[104m"
#define bgPIN "\x1b[105m"
#define bgLCY "\x1b[106m"
#define bgBRI "\x1b[107m"
#else
#define cBLK ""
#define cRED ""
#define cGRN ""
#define cBRN ""
#define cBLU ""
#define cMGN ""
#define cCYA ""
#define cLGR ""
#define cGRA ""
#define cLRD ""
#define cLGN ""
#define cYEL ""
#define cLBL ""
#define cPIN ""
#define cLCY ""
#define cBRI ""
#define cRST ""
#define bgBLK ""
#define bgRED ""
#define bgGRN ""
#define bgBRN ""
#define bgBLU ""
#define bgMGN ""
#define bgCYA ""
#define bgLGR ""
#define bgGRA ""
#define bgLRD ""
#define bgLGN ""
#define bgYEL ""
#define bgLBL ""
#define bgPIN ""
#define bgLCY ""
#define bgBRI ""
#endif /* ^USE_COLOR */
/*************************
* Box drawing sequences *
*************************/
#ifdef FANCY_BOXES_NO_UTF
#define SET_G1 "\x1b)0" /* Set G1 for box drawing */
#define RESET_G1 "\x1b)B" /* Reset G1 to ASCII */
#define bSTART "\x0e" /* Enter G1 drawing mode */
#define bSTOP "\x0f" /* Leave G1 drawing mode */
#define bH "q" /* Horizontal line */
#define bV "x" /* Vertical line */
#define bLT "l" /* Left top corner */
#define bRT "k" /* Right top corner */
#define bLB "m" /* Left bottom corner */
#define bRB "j" /* Right bottom corner */
#define bX "n" /* Cross */
#define bVR "t" /* Vertical, branch right */
#define bVL "u" /* Vertical, branch left */
#define bHT "v" /* Horizontal, branch top */
#define bHB "w" /* Horizontal, branch bottom */
#else
#ifdef FANCY_BOXES
#define SET_G1 ""
#define RESET_G1 ""
#define bSTART ""
#define bSTOP ""
#define bH "\u2500" /* Horizontal line */
#define bV "\u2502" /* Vertical line */
#define bLT "\u250c" /* Left top corner */
#define bRT "\u2510" /* Right top corner */
#define bLB "\u2514" /* Left bottom corner */
#define bRB "\u2518" /* Right bottom corner */
#define bX "\u253c" /* Cross */
#define bVR "\u251c" /* Vertical, branch right */
#define bVL "\u2524" /* Vertical, branch left */
#define bHT "\u2534" /* Horizontal, branch top */
#define bHB "\u252c" /* Horizontal, branch bottom */
#else
#define SET_G1 ""
#define RESET_G1 ""
#define bSTART ""
#define bSTOP ""
#define bH "-"
#define bV "|"
#define bLT "+"
#define bRT "+"
#define bLB "+"
#define bRB "+"
#define bX "+"
#define bVR "+"
#define bVL "+"
#define bHT "+"
#define bHB "+"
#endif
#endif /* ^FANCY_BOXES */
/***********************
* Misc terminal codes *
***********************/
#define TERM_HOME "\x1b[H"
#define TERM_CLEAR TERM_HOME "\x1b[2J"
#define cEOL "\x1b[0K"
#define CURSOR_HIDE "\x1b[?25l"
#define CURSOR_SHOW "\x1b[?25h"
/************************
* Debug & error macros *
************************/
#if defined USE_COLOR && !defined ALWAYS_COLORED
#include <unistd.h>
#pragma GCC diagnostic ignored "-Wformat-security"
static inline const char *colorfilter(const char *x) {
static int once = 1;
static int disabled = 0;
if (once) {
/* when there is no tty -> we always want filtering
* when AFL_NO_UI is set filtering depends on AFL_NO_COLOR
* otherwise we want always colors
*/
disabled =
isatty(2) && (!getenv("AFL_NO_UI") ||
(!getenv("AFL_NO_COLOR") && !getenv("AFL_NO_COLOUR")));
once = 0;
}
if (likely(disabled)) return x;
static char monochromestring[4096];
char *d = monochromestring;
int in_seq = 0;
while (*x) {
if (in_seq && *x == 'm') {
in_seq = 0;
} else {
if (!in_seq && *x == '\x1b') { in_seq = 1; }
if (!in_seq) { *d++ = *x; }
}
++x;
}
*d = '\0';
return monochromestring;
}
#else
#define colorfilter(x) x /* no filtering necessary */
#endif
/* macro magic to transform the first parameter to SAYF
* through colorfilter which strips coloring */
#define GET_MACRO(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _13, _14, \
_15, _16, _17, _18, _19, _20, _21, _22, _23, _24, _25, _26, \
_27, _28, _29, _30, _31, _32, _33, _34, _35, _36, _37, _38, \
_39, _40, NAME, ...) \
NAME
#define SAYF(...) \
GET_MACRO(__VA_ARGS__, SAYF_N, SAYF_N, SAYF_N, SAYF_N, SAYF_N, SAYF_N, \
SAYF_N, SAYF_N, SAYF_N, SAYF_N, SAYF_N, SAYF_N, SAYF_N, SAYF_N, \
SAYF_N, SAYF_N, SAYF_N, SAYF_N, SAYF_N, SAYF_N, SAYF_N, SAYF_N, \
SAYF_N, SAYF_N, SAYF_N, SAYF_N, SAYF_N, SAYF_N, SAYF_N, SAYF_N, \
SAYF_N, SAYF_N, SAYF_N, SAYF_N, SAYF_N, SAYF_N, SAYF_N, SAYF_N, \
SAYF_N, SAYF_1) \
(__VA_ARGS__)
#define SAYF_1(x) MY_SAYF(colorfilter(x))
#define SAYF_N(x, ...) MY_SAYF(colorfilter(x), __VA_ARGS__)
/* Just print stuff to the appropriate stream. */
#ifdef MESSAGES_TO_STDOUT
#define MY_SAYF(x...) printf(x)
#else
#define MY_SAYF(x...) fprintf(stderr, x)
#endif /* ^MESSAGES_TO_STDOUT */
/* Show a prefixed warning. */
#define WARNF(x...) \
do { \
\
SAYF(cYEL "[!] " cBRI "WARNING: " cRST x); \
SAYF(cRST "\n"); \
\
} while (0)
/* Show a prefixed "doing something" message. */
#define ACTF(x...) \
do { \
\
SAYF(cLBL "[*] " cRST x); \
SAYF(cRST "\n"); \
\
} while (0)
/* Show a prefixed "success" message. */
#define OKF(x...) \
do { \
\
SAYF(cLGN "[+] " cRST x); \
SAYF(cRST "\n"); \
\
} while (0)
/* Show a prefixed fatal error message (not used in afl). */
#define BADF(x...) \
do { \
\
SAYF(cLRD "\n[-] " cRST x); \
SAYF(cRST "\n"); \
\
} while (0)
/* Die with a verbose non-OS fatal error message. */
#define FATAL(x...) \
do { \
\
SAYF(bSTOP RESET_G1 CURSOR_SHOW cRST cLRD \
"\n[-] PROGRAM ABORT : " cRST x); \
SAYF(cLRD "\n Location : " cRST "%s(), %s:%u\n\n", __func__, \
__FILE__, (u32)__LINE__); \
exit(1); \
\
} while (0)
/* Die by calling abort() to provide a core dump. */
#define ABORT(x...) \
do { \
\
SAYF(bSTOP RESET_G1 CURSOR_SHOW cRST cLRD \
"\n[-] PROGRAM ABORT : " cRST x); \
SAYF(cLRD "\n Stop location : " cRST "%s(), %s:%u\n\n", __func__, \
__FILE__, (u32)__LINE__); \
abort(); \
\
} while (0)
/* Die while also including the output of perror(). */
#define PFATAL(x...) \
do { \
\
fflush(stdout); \
SAYF(bSTOP RESET_G1 CURSOR_SHOW cRST cLRD \
"\n[-] SYSTEM ERROR : " cRST x); \
SAYF(cLRD "\n Stop location : " cRST "%s(), %s:%u\n", __func__, \
__FILE__, (u32)__LINE__); \
SAYF(cLRD " OS message : " cRST "%s\n", strerror(errno)); \
exit(1); \
\
} while (0)
/* Die with FATAL() or PFATAL() depending on the value of res (used to
interpret different failure modes for read(), write(), etc). */
#define RPFATAL(res, x...) \
do { \
\
if (res < 0) \
PFATAL(x); \
else \
FATAL(x); \
\
} while (0)
/* Show a prefixed debug output. */
#define DEBUGF(x...) \
do { \
\
fprintf(stderr, cMGN "[D] " cBRI "DEBUG: " cRST x); \
fprintf(stderr, cRST ""); \
\
} while (0)
/* Error-checking versions of read() and write() that call RPFATAL() as
appropriate. */
#define ck_write(fd, buf, len, fn) \
do { \
\
if (len <= 0) break; \
int _fd = (fd); \
s32 _written = 0, _off = 0, _len = (s32)(len); \
\
do { \
\
s32 _res = write(_fd, (buf) + _off, _len); \
if (_res != _len && (_res > 0 && _written + _res != _len)) { \
\
if (_res > 0) { \
\
_written += _res; \
_len -= _res; \
_off += _res; \
\
} else { \
\
RPFATAL(_res, "Short write to %s, fd %d (%d of %d bytes)", fn, _fd, \
_res, _len); \
\
} \
\
} else { \
\
break; \
\
} \
\
} while (1); \
\
\
\
} while (0)
#define ck_read(fd, buf, len, fn) \
do { \
\
s32 _len = (s32)(len); \
s32 _res = read(fd, buf, _len); \
if (_res != _len) RPFATAL(_res, "Short read from %s", fn); \
\
} while (0)
#endif /* ! _HAVE_DEBUG_H */
|
