# HG changeset patch
# User Christian Brabandt <cb@256bit.org>
# Date 1521492307 -3600
# Node ID db5cc048222d3b491dfba2138261403a3ae2acfe
# Parent  cfd724926e59cda351aeb52338e64723244c5f71
patch 8.0.1617: Win32: :shell command in the GUI crashes

commit https://github.com/vim/vim/commit/42f652f733550a0d8bc9b030c9a5a62e7e2d8668
Author: Bram Moolenaar <Bram@vim.org>
Date:   Mon Mar 19 21:44:37 2018 +0100

    patch 8.0.1617: Win32: :shell command in the GUI crashes

    Problem:    Win32: :shell command in the GUI crashes.
    Solution:   Handle the situation that "cmd" is NULL. (Yasuhiro Matsumoto,
                closes #2721)

diff --git a/src/os_win32.c b/src/os_win32.c
--- a/src/os_win32.c
+++ b/src/os_win32.c
@@ -4800,15 +4800,25 @@ mch_call_shell_terminal(
     aco_save_T	aco;
     oparg_T	oa;		/* operator arguments */
 
-    cmdlen = STRLEN(p_sh) + STRLEN(p_shcf) + STRLEN(cmd) + 10;
-
+    if (cmd == NULL)
+	cmdlen = STRLEN(p_sh) + 1;
+    else
+	cmdlen = STRLEN(p_sh) + STRLEN(p_shcf) + STRLEN(cmd) + 10;
     newcmd = lalloc(cmdlen, TRUE);
     if (newcmd == NULL)
 	return 255;
-    vim_snprintf((char *)newcmd, cmdlen, "%s %s %s", p_sh, p_shcf, cmd);
+    if (cmd == NULL)
+    {
+	STRCPY(newcmd, p_sh);
+	ch_log(NULL, "starting terminal to run a shell");
+    }
+    else
+    {
+	vim_snprintf((char *)newcmd, cmdlen, "%s %s %s", p_sh, p_shcf, cmd);
+	ch_log(NULL, "starting terminal for system command '%s'", cmd);
+    }
 
     init_job_options(&opt);
-    ch_log(NULL, "starting terminal for system command '%s'", cmd);
 
     argvar[0].v_type = VAR_STRING;
     argvar[0].vval.v_string = newcmd;
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -767,6 +767,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1617,
+/**/
     1616,
 /**/
     1615,