Fix portability of printing to files returned by open("/dev/stderr").

The BroFile ctor now wraps /dev/std{in,out,err} string arguments
into the actual FILE* provided by stdio.h because use of the former
directly isn't POSIX compliant and led to subtle differences that
broke unit tests on certain platforms (e.g. OS X redirection of stderr
behavior started differing from Linux).  The BroFile (un)serialization
methods already did this kind of logic, so adding it in the ctor also
should make things more consistent.

Some of the reporter-related unit tests looked like they were missing
output because of this, and the coverage test for bare-mode errors
needed tweaking to branch on whether or not libcurl was available
(since the error output differs when elasticsearch isn't there).

src/File.cc

@@ -138,11 +138,21 @@ BroFile::BroFile(FILE* arg_f, const char* arg_name, const char* arg_access)
 BroFile::BroFile(const char* arg_name, const char* arg_access, BroType* arg_t)
 	{
 	Init();
-
+	f = 0;
 	name = copy_string(arg_name);
 	access = copy_string(arg_access);
 	t = arg_t ? arg_t : base_type(TYPE_STRING);
-	if ( ! Open() )
+
+	if ( streq(name, "/dev/stdin") )
+		f = stdin;
+	else if ( streq(name, "/dev/stdout") )
+		f = stdout;
+	else if ( streq(name, "/dev/stderr") )
+		f = stderr;
+
+	if ( f )
+		is_open = 1;
+	else if ( ! Open() )
 		{
 		reporter->Error("cannot open %s: %s", name, strerror(errno));
 		is_open = 0;

testing/btest/Baseline/core.reporter-error-in-handler/output

@@ -1,3 +1,3 @@
-ERROR: no such index (a[1]) (/da/home/robin/bro/master/testing/btest/.tmp/core.reporter-error-in-handler/reporter-error-in-handler.bro, line 28)
-
+error in /home/jsiwek/bro/testing/btest/.tmp/core.reporter-error-in-handler/reporter-error-in-handler.bro, line 22: no such index (a[2])
+ERROR: no such index (a[1]) (/home/jsiwek/bro/testing/btest/.tmp/core.reporter-error-in-handler/reporter-error-in-handler.bro, line 28)
 1st error printed on script level

testing/btest/Baseline/core.reporter-runtime-error/output

@@ -1 +1,2 @@
-ERROR: no such index (a[2]) (/da/home/robin/bro/master/testing/btest/.tmp/core.reporter-runtime-error/reporter-runtime-error.bro, line 9)
+error in /home/jsiwek/bro/testing/btest/.tmp/core.reporter-runtime-error/reporter-runtime-error.bro, line 12: no such index (a[1])
+ERROR: no such index (a[2]) (/home/jsiwek/bro/testing/btest/.tmp/core.reporter-runtime-error/reporter-runtime-error.bro, line 9)

testing/btest/Baseline/core.reporter/logger-test.log

@@ -1,6 +1,6 @@
-reporter_info|init test-info|/da/home/robin/bro/master/testing/btest/.tmp/core.reporter/reporter.bro, line 8|0.000000
-reporter_warning|init test-warning|/da/home/robin/bro/master/testing/btest/.tmp/core.reporter/reporter.bro, line 9|0.000000
-reporter_error|init test-error|/da/home/robin/bro/master/testing/btest/.tmp/core.reporter/reporter.bro, line 10|0.000000
-reporter_info|done test-info|/da/home/robin/bro/master/testing/btest/.tmp/core.reporter/reporter.bro, line 15|0.000000
-reporter_warning|done test-warning|/da/home/robin/bro/master/testing/btest/.tmp/core.reporter/reporter.bro, line 16|0.000000
-reporter_error|done test-error|/da/home/robin/bro/master/testing/btest/.tmp/core.reporter/reporter.bro, line 17|0.000000
+reporter_info|init test-info|/home/jsiwek/bro/testing/btest/.tmp/core.reporter/reporter.bro, line 8|0.000000
+reporter_warning|init test-warning|/home/jsiwek/bro/testing/btest/.tmp/core.reporter/reporter.bro, line 9|0.000000
+reporter_error|init test-error|/home/jsiwek/bro/testing/btest/.tmp/core.reporter/reporter.bro, line 10|0.000000
+reporter_info|done test-info|/home/jsiwek/bro/testing/btest/.tmp/core.reporter/reporter.bro, line 15|0.000000
+reporter_warning|done test-warning|/home/jsiwek/bro/testing/btest/.tmp/core.reporter/reporter.bro, line 16|0.000000
+reporter_error|done test-error|/home/jsiwek/bro/testing/btest/.tmp/core.reporter/reporter.bro, line 17|0.000000

testing/btest/Baseline/core.reporter/output

@@ -1,4 +1,7 @@
-WARNING: init test-warning (/da/home/robin/bro/master/testing/btest/.tmp/core.reporter/reporter.bro, line 9)
-ERROR: init test-error (/da/home/robin/bro/master/testing/btest/.tmp/core.reporter/reporter.bro, line 10)
-WARNING: done test-warning (/da/home/robin/bro/master/testing/btest/.tmp/core.reporter/reporter.bro, line 16)
-ERROR: done test-error (/da/home/robin/bro/master/testing/btest/.tmp/core.reporter/reporter.bro, line 17)
+/home/jsiwek/bro/testing/btest/.tmp/core.reporter/reporter.bro, line 52: pre test-info
+warning in /home/jsiwek/bro/testing/btest/.tmp/core.reporter/reporter.bro, line 53: pre test-warning
+error in /home/jsiwek/bro/testing/btest/.tmp/core.reporter/reporter.bro, line 54: pre test-error
+WARNING: init test-warning (/home/jsiwek/bro/testing/btest/.tmp/core.reporter/reporter.bro, line 9)
+ERROR: init test-error (/home/jsiwek/bro/testing/btest/.tmp/core.reporter/reporter.bro, line 10)
+WARNING: done test-warning (/home/jsiwek/bro/testing/btest/.tmp/core.reporter/reporter.bro, line 16)
+ERROR: done test-error (/home/jsiwek/bro/testing/btest/.tmp/core.reporter/reporter.bro, line 17)

testing/btest/Baseline/coverage.bare-mode-errors/unique_errors_no_elasticsearch

@@ -0,0 +1 @@
+error: unknown writer type requested

testing/btest/coverage/bare-mode-errors.test

@@ -10,4 +10,5 @@
 # @TEST-EXEC: test -d $DIST/scripts
 # @TEST-EXEC: for script in `find $DIST/scripts -name \*\.bro -not -path '*/site/*'`; do echo $script; if echo "$script" | egrep -q 'communication/listen|controllee'; then rm -rf load_attempt .bgprocs; btest-bg-run load_attempt bro -b $script; btest-bg-wait -k 2; cat load_attempt/.stderr >>allerrors; else bro -b $script 2>>allerrors; fi done || exit 0
 # @TEST-EXEC: cat allerrors | grep -v "received termination signal" | sort | uniq > unique_errors
-# @TEST-EXEC: btest-diff unique_errors
+# @TEST-EXEC: if [ $(grep -c CURL_INCLUDE_DIR-NOTFOUND $BUILD/CMakeCache.txt) -ne 0 ]; then cp unique_errors unique_errors_no_elasticsearch; fi
+# @TEST-EXEC: if [ $(grep -c CURL_INCLUDE_DIR-NOTFOUND $BUILD/CMakeCache.txt) -ne 0 ]; then btest-diff unique_errors_no_elasticsearch; else btest-diff unique_errors; fi