Make bpkg to ignore SIGPIPE

1 files changed, 14 insertions, 1 deletions

diff --git a/bpkg/bpkg.cxx b/bpkg/bpkg.cxx
index ffdc9c2..7e60725 100644
--- a/bpkg/bpkg.cxx
+++ b/bpkg/bpkg.cxx
@@ -2,7 +2,9 @@
 // copyright : Copyright (c) 2014-2017 Code Synthesis Ltd
 // license   : MIT; see accompanying LICENSE file
 
-#ifdef _WIN32
+#ifndef _WIN32
+#  include <signal.h> // signal()
+#else
 #  include <stdlib.h> // getenv(), _putenv()
 #endif
 
@@ -130,6 +132,17 @@ try
   }
 #endif
 
+  // On POSIX ignore SIGPIPE which is signaled to a pipe-writing process if
+  // the pipe reading end is closed. Note that by default this signal
+  // terminates a process. Also note that there is no way to disable this
+  // behavior on a file descriptor basis or for the write() function call.
+  //
+#ifndef _WIN32
+  if (signal (SIGPIPE, SIG_IGN) == SIG_ERR)
+    fail << "unable to ignore broken pipe (SIGPIPE) signal: "
+         << system_error (errno, system_category ()); // Sanitize.
+#endif
+
   argv_file_scanner scan (argc, argv, "--options-file");
 
   // First parse common options and --version/--help.