su: add segmentation fault reporting of the child process

Child processes that ended with segmentation fault previously
indicated this with return status only. The report is now more
verbose if core dump is allowed.

Improved-by: Pádraig Brady <P@draigBrady.com>
Signed-off-by: Ondrej Oprala <ooprala@redhat.com>

diff --git a/login-utils/su-common.c b/login-utils/su-common.c
index 23ad57dc3ecd74def3591dae218b70cf6de2bba6..2749303136087ec487aeea6ad0247dea237afe6c 100644 (file)
--- a/login-utils/su-common.c
+++ b/login-utils/su-common.c
@@ -300,7 +300,12 @@ create_watching_parent (void)
        }
       if (pid != (pid_t)-1)
        if (WIFSIGNALED (status))
-         status = WTERMSIG (status) + 128;
+         {
+           status = WTERMSIG (status) + 128;
+           if (WCOREDUMP (status))
+             fprintf (stderr, _("%s (core dumped)\n"),
+                 strsignal (WTERMSIG (status)));
+         }
        else
          status = WEXITSTATUS (status);
       else