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[tor-commits] [tor/master] Move horrible-emergency handling into torerr.[ch]



commit 5ecd1fec1583b8aa865ac5cae0cece42451395bd
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
Date:   Wed Jun 20 13:02:05 2018 -0400

    Move horrible-emergency handling into torerr.[ch]
    
    Previously we had code like this for bad things happening from
    signal handlers, but it makes sense to use the same logic to handle
    cases when something is happening at a level too low for log.c to be
    involved.
    
    My raw_assert*() stuff now uses this code.
---
 src/common/backtrace.c   |   2 +-
 src/common/compat_time.c |   1 +
 src/common/include.am    |   2 +
 src/common/log.c         |  89 ++++---------------
 src/common/sandbox.c     |   4 +-
 src/common/torerr.c      | 222 +++++++++++++++++++++++++++++++++++++++++++++++
 src/common/torerr.h      |  45 ++++++++++
 src/common/torlog.h      |   3 -
 src/common/util.c        |  79 -----------------
 src/common/util.h        |   4 +-
 src/common/util_bug.h    |  15 ----
 src/test/test_logging.c  |   2 +-
 12 files changed, 291 insertions(+), 177 deletions(-)

diff --git a/src/common/backtrace.c b/src/common/backtrace.c
index c3c0b77ab..56cefdf93 100644
--- a/src/common/backtrace.c
+++ b/src/common/backtrace.c
@@ -17,6 +17,7 @@
 #include "common/compat.h"
 #include "common/util.h"
 #include "common/torlog.h"
+#include "common/torerr.h"
 
 #ifdef HAVE_EXECINFO_H
 #include <execinfo.h>
@@ -245,4 +246,3 @@ clean_up_backtrace_handler(void)
 
   tor_free(bt_version);
 }
-
diff --git a/src/common/compat_time.c b/src/common/compat_time.c
index 5c7067461..913fa666e 100644
--- a/src/common/compat_time.c
+++ b/src/common/compat_time.c
@@ -34,6 +34,7 @@
 #include <mach/mach_time.h>
 #endif
 
+#include "common/torerr.h"
 #include "common/torlog.h"
 #include "common/util.h"
 #include "common/container.h"
diff --git a/src/common/include.am b/src/common/include.am
index 724473c14..67b60d3ee 100644
--- a/src/common/include.am
+++ b/src/common/include.am
@@ -99,6 +99,7 @@ LIBOR_A_SRC = \
   src/common/sandbox.c					\
   src/common/storagedir.c				\
   src/common/token_bucket.c				\
+  src/common/torerr.c					\
   src/common/workqueue.c				\
   $(libor_extra_source)					\
   $(threads_impl_source)				\
@@ -201,6 +202,7 @@ COMMONHEADERS = \
   src/common/testsupport.h			\
   src/common/timers.h				\
   src/common/token_bucket.h			\
+  src/common/torerr.c				\
   src/common/torint.h				\
   src/common/torlog.h				\
   src/common/tortls.h				\
diff --git a/src/common/log.c b/src/common/log.c
index 6aa2203a5..6dba5bf4b 100644
--- a/src/common/log.c
+++ b/src/common/log.c
@@ -34,6 +34,8 @@
 #define LOG_PRIVATE
 #include "common/torlog.h"
 #include "common/container.h"
+#include "common/torerr.h"
+
 #ifdef HAVE_ANDROID_LOG_H
 #include <android/log.h>
 #endif // HAVE_ANDROID_LOG_H.
@@ -265,6 +267,7 @@ void
 set_log_time_granularity(int granularity_msec)
 {
   log_time_granularity = granularity_msec;
+  tor_log_sigsafe_err_set_granularity(granularity_msec);
 }
 
 /** Helper: Write the standard prefix for log lines to a
@@ -631,71 +634,6 @@ tor_log(int severity, log_domain_mask_t domain, const char *format, ...)
   va_end(ap);
 }
 
-/** Maximum number of fds that will get notifications if we crash */
-#define MAX_SIGSAFE_FDS 8
-/** Array of fds to log crash-style warnings to. */
-static int sigsafe_log_fds[MAX_SIGSAFE_FDS] = { STDERR_FILENO };
-/** The number of elements used in sigsafe_log_fds */
-static int n_sigsafe_log_fds = 1;
-
-/** Write <b>s</b> to each element of sigsafe_log_fds. Return 0 on success, -1
- * on failure. */
-static int
-tor_log_err_sigsafe_write(const char *s)
-{
-  int i;
-  ssize_t r;
-  size_t len = strlen(s);
-  int err = 0;
-  for (i=0; i < n_sigsafe_log_fds; ++i) {
-    r = write(sigsafe_log_fds[i], s, len);
-    err += (r != (ssize_t)len);
-  }
-  return err ? -1 : 0;
-}
-
-/** Given a list of string arguments ending with a NULL, writes them
- * to our logs and to stderr (if possible).  This function is safe to call
- * from within a signal handler. */
-void
-tor_log_err_sigsafe(const char *m, ...)
-{
-  va_list ap;
-  const char *x;
-  char timebuf[33];
-  time_t now = time(NULL);
-
-  if (!m)
-    return;
-  if (log_time_granularity >= 2000) {
-    int g = log_time_granularity / 1000;
-    now -= now % g;
-  }
-  timebuf[0] = now < 0 ? '-' : ' ';
-  if (now < 0) now = -now;
-  timebuf[1] = '\0';
-  format_dec_number_sigsafe(now, timebuf+1, sizeof(timebuf)-1);
-  tor_log_err_sigsafe_write("\n=========================================="
-                             "================== T=");
-  tor_log_err_sigsafe_write(timebuf);
-  tor_log_err_sigsafe_write("\n");
-  tor_log_err_sigsafe_write(m);
-  va_start(ap, m);
-  while ((x = va_arg(ap, const char*))) {
-    tor_log_err_sigsafe_write(x);
-  }
-  va_end(ap);
-}
-
-/** Set *<b>out</b> to a pointer to an array of the fds to log errors to from
- * inside a signal handler. Return the number of elements in the array. */
-int
-tor_log_get_sigsafe_err_fds(const int **out)
-{
-  *out = sigsafe_log_fds;
-  return n_sigsafe_log_fds;
-}
-
 /** Helper function; return true iff the <b>n</b>-element array <b>array</b>
  * contains <b>item</b>. */
 static int
@@ -717,11 +655,14 @@ tor_log_update_sigsafe_err_fds(void)
   const logfile_t *lf;
   int found_real_stderr = 0;
 
+  int fds[TOR_SIGSAFE_LOG_MAX_FDS];
+  int n_fds;
+
   LOCK_LOGS();
   /* Reserve the first one for stderr. This is safe because when we daemonize,
    * we dup2 /dev/null to stderr, */
-  sigsafe_log_fds[0] = STDERR_FILENO;
-  n_sigsafe_log_fds = 1;
+  fds[0] = STDERR_FILENO;
+  n_fds = 1;
 
   for (lf = logfiles; lf; lf = lf->next) {
      /* Don't try callback to the control port, or syslogs: We can't
@@ -735,22 +676,24 @@ tor_log_update_sigsafe_err_fds(void)
       if (lf->fd == STDERR_FILENO)
         found_real_stderr = 1;
       /* Avoid duplicates */
-      if (int_array_contains(sigsafe_log_fds, n_sigsafe_log_fds, lf->fd))
+      if (int_array_contains(fds, n_fds, lf->fd))
         continue;
-      sigsafe_log_fds[n_sigsafe_log_fds++] = lf->fd;
-      if (n_sigsafe_log_fds == MAX_SIGSAFE_FDS)
+      fds[n_fds++] = lf->fd;
+      if (n_fds == TOR_SIGSAFE_LOG_MAX_FDS)
         break;
     }
   }
 
   if (!found_real_stderr &&
-      int_array_contains(sigsafe_log_fds, n_sigsafe_log_fds, STDOUT_FILENO)) {
+      int_array_contains(fds, n_fds, STDOUT_FILENO)) {
     /* Don't use a virtual stderr when we're also logging to stdout. */
-    raw_assert(n_sigsafe_log_fds >= 2); /* Don't tor_assert inside log fns */
-    sigsafe_log_fds[0] = sigsafe_log_fds[--n_sigsafe_log_fds];
+    raw_assert(n_fds >= 2); /* Don't tor_assert inside log fns */
+    fds[0] = fds[--n_fds];
   }
 
   UNLOCK_LOGS();
+
+  tor_log_set_sigsafe_err_fds(fds, n_fds);
 }
 
 /** Add to <b>out</b> a copy of every currently configured log file name. Used
diff --git a/src/common/sandbox.c b/src/common/sandbox.c
index cba63e04f..3679037f8 100644
--- a/src/common/sandbox.c
+++ b/src/common/sandbox.c
@@ -1,4 +1,4 @@
- /* Copyright (c) 2001 Matej Pfajfar.
+/* Copyright (c) 2001 Matej Pfajfar.
  * Copyright (c) 2001-2004, Roger Dingledine.
  * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
  * Copyright (c) 2007-2018, The Tor Project, Inc. */
@@ -34,6 +34,7 @@
 
 #include "common/sandbox.h"
 #include "common/container.h"
+#include "common/torerr.h"
 #include "common/torlog.h"
 #include "common/torint.h"
 #include "common/util.h"
@@ -1974,4 +1975,3 @@ sandbox_disable_getaddrinfo_cache(void)
 {
 }
 #endif /* !defined(USE_LIBSECCOMP) */
-
diff --git a/src/common/torerr.c b/src/common/torerr.c
new file mode 100644
index 000000000..c22526254
--- /dev/null
+++ b/src/common/torerr.c
@@ -0,0 +1,222 @@
+/* Copyright (c) 2001, Matej Pfajfar.
+ * Copyright (c) 2001-2004, Roger Dingledine.
+ * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
+ * Copyright (c) 2007-2018, The Tor Project, Inc. */
+/* See LICENSE for licensing information */
+
+/**
+ * \file torerr.c
+ *
+ * \brief Handling code for unrecoverable emergencies, at a lower level
+ *   than the logging code.
+ */
+
+#include "orconfig.h"
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+#ifdef HAVE_TIME_H
+#include <time.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+
+#include "common/torerr.h"
+
+/** Array of fds to log crash-style warnings to. */
+static int sigsafe_log_fds[TOR_SIGSAFE_LOG_MAX_FDS] = { STDERR_FILENO };
+/** The number of elements used in sigsafe_log_fds */
+static int n_sigsafe_log_fds = 1;
+/** Log granularity in milliseconds. */
+static int log_granularity = 1000;
+
+/** Write <b>s</b> to each element of sigsafe_log_fds. Return 0 on success, -1
+ * on failure. */
+static int
+tor_log_err_sigsafe_write(const char *s)
+{
+  int i;
+  ssize_t r;
+  size_t len = strlen(s);
+  int err = 0;
+  for (i=0; i < n_sigsafe_log_fds; ++i) {
+    r = write(sigsafe_log_fds[i], s, len);
+    err += (r != (ssize_t)len);
+  }
+  return err ? -1 : 0;
+}
+
+/** Given a list of string arguments ending with a NULL, writes them
+ * to our logs and to stderr (if possible).  This function is safe to call
+ * from within a signal handler. */
+void
+tor_log_err_sigsafe(const char *m, ...)
+{
+  va_list ap;
+  const char *x;
+  char timebuf[33];
+  time_t now = time(NULL);
+
+  if (!m)
+    return;
+  if (log_granularity >= 2000) {
+    int g = log_granularity / 1000;
+    now -= now % g;
+  }
+  timebuf[0] = now < 0 ? '-' : ' ';
+  if (now < 0) now = -now;
+  timebuf[1] = '\0';
+  format_dec_number_sigsafe(now, timebuf+1, sizeof(timebuf)-1);
+  tor_log_err_sigsafe_write("\n=========================================="
+                             "================== T=");
+  tor_log_err_sigsafe_write(timebuf);
+  tor_log_err_sigsafe_write("\n");
+  tor_log_err_sigsafe_write(m);
+  va_start(ap, m);
+  while ((x = va_arg(ap, const char*))) {
+    tor_log_err_sigsafe_write(x);
+  }
+  va_end(ap);
+}
+
+/** Set *<b>out</b> to a pointer to an array of the fds to log errors to from
+ * inside a signal handler or other emergency condition. Return the number of
+ * elements in the array. */
+int
+tor_log_get_sigsafe_err_fds(const int **out)
+{
+  *out = sigsafe_log_fds;
+  return n_sigsafe_log_fds;
+}
+
+/**
+ * Update the list of fds that get errors from inside a signal handler or
+ * other emergency condition. Ignore any beyond the first
+ * TOR_SIGSAFE_LOG_MAX_FDS.
+ */
+void
+tor_log_set_sigsafe_err_fds(const int *fds, int n)
+{
+  if (n > TOR_SIGSAFE_LOG_MAX_FDS) {
+    n = TOR_SIGSAFE_LOG_MAX_FDS;
+  }
+
+  memcpy(sigsafe_log_fds, fds, n * sizeof(int));
+  n_sigsafe_log_fds = n;
+}
+
+/**
+ * Set the granularity (in ms) to use when reporting fatal errors outside
+ * the logging system.
+ */
+void
+tor_log_sigsafe_err_set_granularity(int ms)
+{
+  log_granularity = ms;
+}
+
+/**
+ * Log an emergency assertion failure message.
+ *
+ * This kind of message is safe to send from within a log handler,
+ * a signal handler, or other emergency situation.
+ */
+void
+tor_raw_assertion_failed_msg_(const char *file, int line, const char *expr,
+                              const char *msg)
+{
+  char linebuf[16];
+  format_dec_number_sigsafe(line, linebuf, sizeof(linebuf));
+  tor_log_err_sigsafe("INTERNAL ERROR: Raw assertion failed at ",
+                      file, ":", linebuf, ": ", expr, NULL);
+  if (msg) {
+    tor_log_err_sigsafe_write(msg);
+    tor_log_err_sigsafe_write("\n");
+  }
+}
+
+/* As format_{hex,dex}_number_sigsafe, but takes a <b>radix</b> argument
+ * in range 2..16 inclusive. */
+static int
+format_number_sigsafe(unsigned long x, char *buf, int buf_len,
+                      unsigned int radix)
+{
+  unsigned long tmp;
+  int len;
+  char *cp;
+
+  /* NOT tor_assert. This needs to be safe to run from within a signal handler,
+   * and from within the 'tor_assert() has failed' code. */
+  if (radix < 2 || radix > 16)
+    return 0;
+
+  /* Count how many digits we need. */
+  tmp = x;
+  len = 1;
+  while (tmp >= radix) {
+    tmp /= radix;
+    ++len;
+  }
+
+  /* Not long enough */
+  if (!buf || len >= buf_len)
+    return 0;
+
+  cp = buf + len;
+  *cp = '\0';
+  do {
+    unsigned digit = (unsigned) (x % radix);
+    raw_assert(cp > buf);
+    --cp;
+    *cp = "0123456789ABCDEF"[digit];
+    x /= radix;
+  } while (x);
+
+  /* NOT tor_assert; see above. */
+  if (cp != buf) {
+    abort(); // LCOV_EXCL_LINE
+  }
+
+  return len;
+}
+
+/**
+ * Helper function to output hex numbers from within a signal handler.
+ *
+ * Writes the nul-terminated hexadecimal digits of <b>x</b> into a buffer
+ * <b>buf</b> of size <b>buf_len</b>, and return the actual number of digits
+ * written, not counting the terminal NUL.
+ *
+ * If there is insufficient space, write nothing and return 0.
+ *
+ * This accepts an unsigned int because format_helper_exit_status() needs to
+ * call it with a signed int and an unsigned char, and since the C standard
+ * does not guarantee that an int is wider than a char (an int must be at
+ * least 16 bits but it is permitted for a char to be that wide as well), we
+ * can't assume a signed int is sufficient to accommodate an unsigned char.
+ * Thus, format_helper_exit_status() will still need to emit any require '-'
+ * on its own.
+ *
+ * For most purposes, you'd want to use tor_snprintf("%x") instead of this
+ * function; it's designed to be used in code paths where you can't call
+ * arbitrary C functions.
+ */
+int
+format_hex_number_sigsafe(unsigned long x, char *buf, int buf_len)
+{
+  return format_number_sigsafe(x, buf, buf_len, 16);
+}
+
+/** As format_hex_number_sigsafe, but format the number in base 10. */
+int
+format_dec_number_sigsafe(unsigned long x, char *buf, int buf_len)
+{
+  return format_number_sigsafe(x, buf, buf_len, 10);
+}
diff --git a/src/common/torerr.h b/src/common/torerr.h
new file mode 100644
index 000000000..09d8eeb76
--- /dev/null
+++ b/src/common/torerr.h
@@ -0,0 +1,45 @@
+/* Copyright (c) 2001, Matej Pfajfar.
+ * Copyright (c) 2001-2004, Roger Dingledine.
+ * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
+ * Copyright (c) 2007-2018, The Tor Project, Inc. */
+/* See LICENSE for licensing information */
+
+/**
+ * \file torerr.h
+ *
+ * \brief Headers for torerr.c.
+ **/
+
+#ifndef TOR_TORERR_H
+#define TOR_TORERR_H
+
+/* The raw_assert...() variants are for use within code that can't call
+ * tor_assertion_failed_() because of call circularity issues. */
+#define raw_assert(expr) do {                                           \
+    if (!(expr)) {                                                      \
+      tor_raw_assertion_failed_msg_(__FILE__, __LINE__, #expr, NULL);   \
+      abort();                                                          \
+    }                                                                   \
+  } while (0)
+#define raw_assert_unreached(expr) raw_assert(0)
+#define raw_assert_unreached_msg(msg) do {                          \
+    tor_raw_assertion_failed_msg_(__FILE__, __LINE__, "0", (msg));  \
+    abort();                                                        \
+  } while (0)
+
+void tor_raw_assertion_failed_msg_(const char *file, int line,
+                                   const char *expr,
+                                   const char *msg);
+
+/** Maximum number of fds that will get notifications if we crash */
+#define TOR_SIGSAFE_LOG_MAX_FDS 8
+
+void tor_log_err_sigsafe(const char *m, ...);
+int tor_log_get_sigsafe_err_fds(const int **out);
+void tor_log_set_sigsafe_err_fds(const int *fds, int n);
+void tor_log_sigsafe_err_set_granularity(int ms);
+
+int format_hex_number_sigsafe(unsigned long x, char *buf, int max_len);
+int format_dec_number_sigsafe(unsigned long x, char *buf, int max_len);
+
+#endif /* !defined(TOR_TORLOG_H) */
diff --git a/src/common/torlog.h b/src/common/torlog.h
index 65921c7b0..56f922d40 100644
--- a/src/common/torlog.h
+++ b/src/common/torlog.h
@@ -175,8 +175,6 @@ void truncate_logs(void);
 void tor_log(int severity, log_domain_mask_t domain, const char *format, ...)
   CHECK_PRINTF(3,4);
 
-void tor_log_err_sigsafe(const char *m, ...);
-int tor_log_get_sigsafe_err_fds(const int **out);
 void tor_log_update_sigsafe_err_fds(void);
 
 struct smartlist_t;
@@ -272,4 +270,3 @@ MOCK_DECL(STATIC void, logv, (int severity, log_domain_mask_t domain,
 
 # define TOR_TORLOG_H
 #endif /* !defined(TOR_TORLOG_H) */
-
diff --git a/src/common/util.c b/src/common/util.c
index 7d10a9e24..5a477eeba 100644
--- a/src/common/util.c
+++ b/src/common/util.c
@@ -3865,85 +3865,6 @@ tor_join_win_cmdline(const char *argv[])
   return joined_argv;
 }
 
-/* As format_{hex,dex}_number_sigsafe, but takes a <b>radix</b> argument
- * in range 2..16 inclusive. */
-static int
-format_number_sigsafe(unsigned long x, char *buf, int buf_len,
-                      unsigned int radix)
-{
-  unsigned long tmp;
-  int len;
-  char *cp;
-
-  /* NOT tor_assert. This needs to be safe to run from within a signal handler,
-   * and from within the 'tor_assert() has failed' code. */
-  if (radix < 2 || radix > 16)
-    return 0;
-
-  /* Count how many digits we need. */
-  tmp = x;
-  len = 1;
-  while (tmp >= radix) {
-    tmp /= radix;
-    ++len;
-  }
-
-  /* Not long enough */
-  if (!buf || len >= buf_len)
-    return 0;
-
-  cp = buf + len;
-  *cp = '\0';
-  do {
-    unsigned digit = (unsigned) (x % radix);
-    tor_assert(cp > buf);
-    --cp;
-    *cp = "0123456789ABCDEF"[digit];
-    x /= radix;
-  } while (x);
-
-  /* NOT tor_assert; see above. */
-  if (cp != buf) {
-    abort(); // LCOV_EXCL_LINE
-  }
-
-  return len;
-}
-
-/**
- * Helper function to output hex numbers from within a signal handler.
- *
- * Writes the nul-terminated hexadecimal digits of <b>x</b> into a buffer
- * <b>buf</b> of size <b>buf_len</b>, and return the actual number of digits
- * written, not counting the terminal NUL.
- *
- * If there is insufficient space, write nothing and return 0.
- *
- * This accepts an unsigned int because format_helper_exit_status() needs to
- * call it with a signed int and an unsigned char, and since the C standard
- * does not guarantee that an int is wider than a char (an int must be at
- * least 16 bits but it is permitted for a char to be that wide as well), we
- * can't assume a signed int is sufficient to accommodate an unsigned char.
- * Thus, format_helper_exit_status() will still need to emit any require '-'
- * on its own.
- *
- * For most purposes, you'd want to use tor_snprintf("%x") instead of this
- * function; it's designed to be used in code paths where you can't call
- * arbitrary C functions.
- */
-int
-format_hex_number_sigsafe(unsigned long x, char *buf, int buf_len)
-{
-  return format_number_sigsafe(x, buf, buf_len, 16);
-}
-
-/** As format_hex_number_sigsafe, but format the number in base 10. */
-int
-format_dec_number_sigsafe(unsigned long x, char *buf, int buf_len)
-{
-  return format_number_sigsafe(x, buf, buf_len, 10);
-}
-
 #ifndef _WIN32
 /** Format <b>child_state</b> and <b>saved_errno</b> as a hex string placed in
  * <b>hex_errno</b>.  Called between fork and _exit, so must be signal-handler
diff --git a/src/common/util.h b/src/common/util.h
index 7921357ac..a5e6c4d46 100644
--- a/src/common/util.h
+++ b/src/common/util.h
@@ -22,6 +22,7 @@
 /* for the correct alias to struct stat */
 #include <sys/stat.h>
 #endif
+#include "common/torerr.h"
 #include "common/util_bug.h"
 
 #ifndef O_BINARY
@@ -522,9 +523,6 @@ int32_t tor_weak_random_range(tor_weak_rng_t *rng, int32_t top);
  * <b>n</b> */
 #define tor_weak_random_one_in_n(rng, n) (0==tor_weak_random_range((rng),(n)))
 
-int format_hex_number_sigsafe(unsigned long x, char *buf, int max_len);
-int format_dec_number_sigsafe(unsigned long x, char *buf, int max_len);
-
 #ifdef UTIL_PRIVATE
 /* Prototypes for private functions only used by util.c (and unit tests) */
 
diff --git a/src/common/util_bug.h b/src/common/util_bug.h
index 0e1af2da1..1d499a197 100644
--- a/src/common/util_bug.h
+++ b/src/common/util_bug.h
@@ -55,21 +55,6 @@
 #error "Sorry; we don't support building with NDEBUG."
 #endif /* defined(NDEBUG) */
 
-/* The raw_assert...() variants are for use within code that can't call
- * tor_assertion_failed_() because of call circularity issues. */
-#define raw_assert(expr) STMT_BEGIN                             \
-  if (!(expr)) {                                                \
-    fprintf(stderr, "RAW ASSERTION FAILURE AT %s:%d: %s\n",     \
-          __FILE__, __LINE__, #expr);                           \
-    abort();                                                    \
-  }                                                             \
-  STMT_END
-#define raw_assert_unreached(expr) raw_assert(0)
-#define raw_assert_unreached_msg(msg) STMT_BEGIN \
-  fprintf(stderr, "ERROR: %s\n", (msg));         \
-  raw_assert_unreached();                        \
-  STMT_END
-
 /* Sometimes we don't want to use assertions during branch coverage tests; it
  * leads to tons of unreached branches which in reality are only assertions we
  * didn't hit. */
diff --git a/src/test/test_logging.c b/src/test/test_logging.c
index aebfd3606..eaad7ed13 100644
--- a/src/test/test_logging.c
+++ b/src/test/test_logging.c
@@ -3,6 +3,7 @@
 
 #include "orconfig.h"
 #include "or/or.h"
+#include "common/torerr.h"
 #include "common/torlog.h"
 #include "test/test.h"
 
@@ -170,4 +171,3 @@ struct testcase_t logging_tests[] = {
   { "ratelim", test_ratelim, 0, NULL, NULL },
   END_OF_TESTCASES
 };
-



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