Merge from origin/emacs-26

7efcdf7 (origin/emacs-26) Clarify completion text in the ELisp manual
30b0b0e Fix handling of abbreviated control command in gdb-mi.el
5cf282d Clarify documentation of functions reading character events
96281c5 Record :version for built-in variables while dumping
82160cf * src/process.c (connect_network_socket): Fix memory leak.  (...
6c616e4 * Makefile.in (appdatadir): Use the non-obsolete location "me...
9618e16 Better fix for bug#32550
30d94e4 Fix Bug#32550
57bcdc7 Don't call XGetGeometry for frames without outer X window (Bu...
82fc6b6 * lisp/calculator.el: Fix doc typo.
ddc7c64 Standardize calc bug reporting instructions

Conflicts:
	lisp/cus-start.el

1 files changed, 11 insertions, 7 deletions

diff --git a/src/process.c b/src/process.c
index ebaaf33e57f..4d96e469767 100644
--- a/src/process.c
+++ b/src/process.c
@@ -3331,11 +3331,9 @@ static void
 connect_network_socket (Lisp_Object proc, Lisp_Object addrinfos,
                         Lisp_Object use_external_socket_p)
 {
-  ptrdiff_t count = SPECPDL_INDEX ();
   int s = -1, outch, inch;
   int xerrno = 0;
   int family;
-  struct sockaddr *sa = NULL;
   int ret;
   ptrdiff_t addrlen UNINIT;
   struct Lisp_Process *p = XPROCESS (proc);
@@ -3354,6 +3352,11 @@ connect_network_socket (Lisp_Object proc, Lisp_Object addrinfos,
   /* Do this in case we never enter the while-loop below.  */
   s = -1;
 
+  struct sockaddr *sa = NULL;
+  ptrdiff_t count = SPECPDL_INDEX ();
+  record_unwind_protect_nothing ();
+  ptrdiff_t count1 = SPECPDL_INDEX ();
+
   while (!NILP (addrinfos))
     {
       Lisp_Object addrinfo = XCAR (addrinfos);
@@ -3366,9 +3369,8 @@ connect_network_socket (Lisp_Object proc, Lisp_Object addrinfos,
 #endif
 
       addrlen = get_lisp_to_sockaddr_size (ip_address, &family);
-      if (sa)
-        free (sa);
-      sa = xmalloc (addrlen);
+      sa = xrealloc (sa, addrlen);
+      set_unwind_protect_ptr (count, xfree, sa);
       conv_lisp_to_sockaddr (family, ip_address, sa, addrlen);
 
       s = socket_to_use;
@@ -3530,7 +3532,7 @@ connect_network_socket (Lisp_Object proc, Lisp_Object addrinfos,
 #endif /* !WINDOWSNT */
 
       /* Discard the unwind protect closing S.  */
-      specpdl_ptr = specpdl + count;
+      specpdl_ptr = specpdl + count1;
       emacs_close (s);
       s = -1;
       if (0 <= socket_to_use)
@@ -3601,6 +3603,7 @@ connect_network_socket (Lisp_Object proc, Lisp_Object addrinfos,
           Lisp_Object data = get_file_errno_data (err, contact, xerrno);
 
           pset_status (p, list2 (Fcar (data), Fcdr (data)));
+          unbind_to (count, Qnil);
           return;
         }
 
@@ -3620,7 +3623,7 @@ connect_network_socket (Lisp_Object proc, Lisp_Object addrinfos,
   p->outfd = outch;
 
   /* Discard the unwind protect for closing S, if any.  */
-  specpdl_ptr = specpdl + count;
+  specpdl_ptr = specpdl + count1;
 
   if (p->is_server && p->socktype != SOCK_DGRAM)
     pset_status (p, Qlisten);
@@ -3681,6 +3684,7 @@ connect_network_socket (Lisp_Object proc, Lisp_Object addrinfos,
     }
 #endif
 
+  unbind_to (count, Qnil);
 }
 
 /* Create a network stream/datagram client/server process.  Treated