[Emacs-diffs] emacs-26 6c2e21e 1/2: Avoid segfault in processes of type 'pipe'

[Eli Zaretskii]

branch: emacs-26
commit 6c2e21e1cabfb9640320a043063c9a4761e58dec
Author: Eli Zaretskii <address@hidden>
Commit: Eli Zaretskii <address@hidden>

    Avoid segfault in processes of type 'pipe'
    
    * src/process.c (Fmake_pipe_process): Set up the decoding and
    encoding buffers.  For the details, see
    http://lists.gnu.org/archive/html/emacs-devel/2018-04/msg00295.html.
---
 src/process.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/process.c b/src/process.c
index b201e9b..45ab1fd 100644
--- a/src/process.c
+++ b/src/process.c
@@ -2461,6 +2461,10 @@ usage:  (make-pipe-process &rest ARGS)  */)
   /* This may signal an error.  */
   setup_process_coding_systems (proc);
 
+  pset_decoding_buf (p, empty_unibyte_string);
+  eassert (p->decoding_carryover == 0);
+  pset_encoding_buf (p, empty_unibyte_string);
+
   specpdl_ptr = specpdl + specpdl_count;
 
   return proc;