tor

The Tor anonymity network
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torerr.h (1962B)


      1 /* Copyright (c) 2001, Matej Pfajfar.
      2 * Copyright (c) 2001-2004, Roger Dingledine.
      3 * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
      4 * Copyright (c) 2007-2021, The Tor Project, Inc. */
      5 /* See LICENSE for licensing information */
      6 
      7 /**
      8 * \file torerr.h
      9 *
     10 * \brief Headers for torerr.c.
     11 **/
     12 
     13 #ifndef TOR_TORERR_H
     14 #define TOR_TORERR_H
     15 
     16 #include "lib/cc/compat_compiler.h"
     17 
     18 /* The raw_assert...() variants are for use within code that can't call
     19 * tor_assertion_failed_() because of call circularity issues. */
     20 #define raw_assert(expr) STMT_BEGIN                                     \
     21    if (!(expr)) {                                                      \
     22      tor_raw_assertion_failed_msg_(__FILE__, __LINE__, #expr, NULL);   \
     23      tor_raw_abort_();                                                 \
     24    }                                                                   \
     25  STMT_END
     26 #define raw_assert_unreached(expr) raw_assert(0)
     27 #define raw_assert_unreached_msg(msg) STMT_BEGIN                    \
     28    tor_raw_assertion_failed_msg_(__FILE__, __LINE__, "0", (msg));  \
     29    tor_raw_abort_();                                               \
     30  STMT_END
     31 
     32 void tor_raw_assertion_failed_msg_(const char *file, int line,
     33                                   const char *expr,
     34                                   const char *msg);
     35 
     36 /** Maximum number of fds that will get notifications if we crash */
     37 #define TOR_SIGSAFE_LOG_MAX_FDS 8
     38 
     39 void tor_log_err_sigsafe(const char *m, ...);
     40 int tor_log_get_sigsafe_err_fds(const int **out);
     41 void tor_log_set_sigsafe_err_fds(const int *fds, int n);
     42 void tor_log_reset_sigsafe_err_fds(void);
     43 void tor_log_flush_sigsafe_err_fds(void);
     44 void tor_log_sigsafe_err_set_granularity(int ms);
     45 
     46 void tor_raw_abort_(void) ATTR_NORETURN;
     47 
     48 int format_hex_number_sigsafe(unsigned long x, char *buf, int max_len);
     49 int format_dec_number_sigsafe(unsigned long x, char *buf, int max_len);
     50 
     51 #endif /* !defined(TOR_TORERR_H) */