diff options
| -rw-r--r-- | chrome/app/chrome_dll_main.cc | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/chrome/app/chrome_dll_main.cc b/chrome/app/chrome_dll_main.cc index e83e07d..5d58d6e 100644 --- a/chrome/app/chrome_dll_main.cc +++ b/chrome/app/chrome_dll_main.cc @@ -340,6 +340,22 @@ int ChromeMain(int argc, char** argv) { // Set C library locale to make sure CommandLine can parse argument values // in correct encoding. setlocale(LC_ALL, ""); + + // Sanitise our signal handling state. Signals that were ignored by our + // parent will also be ignored by us. We also inherit our parent's sigmask. + sigset_t empty_signal_set; + CHECK(0 == sigemptyset(&empty_signal_set)); + CHECK(0 == sigprocmask(SIG_SETMASK, &empty_signal_set, NULL)); + + struct sigaction sigact; + memset(&sigact, 0, sizeof(sigact)); + sigact.sa_handler = SIG_DFL; + static const int signals_to_reset[] = + {SIGHUP, SIGINT, SIGQUIT, SIGILL, SIGABRT, SIGFPE, SIGSEGV, + SIGALRM, SIGTERM, SIGCHLD, SIGBUS, SIGTRAP}; // SIGPIPE is set below. + for (unsigned i = 0; i < arraysize(signals_to_reset); i++) { + CHECK(0 == sigaction(signals_to_reset[i], &sigact, NULL)); + } #endif // Initialize the command line. |