Alexandre Julliard : explorer: Fix parsing command line that contains spaces.

[Alexandre Julliard]

Module: wine
Branch: oldstable
Commit: b6c0b0aa9da6caaff6485746080f61b94c8c8825
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=b6c0b0aa9da6caaff6485746080f61b94c8c8825

Author: Alexandre Julliard <julliard at winehq.org>
Date:   Tue Dec 12 09:33:32 2017 +0100

explorer: Fix parsing command line that contains spaces.

Reported by Alistair Leslie-Hughes.

Signed-off-by: Alexandre Julliard <julliard at winehq.org>
(cherry picked from commit ff53db7e6396337692ed2966ef3bf49a4737e3a6)
Signed-off-by: Michael Stefaniuc <mstefani at winehq.org>

---

 programs/explorer/explorer.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/programs/explorer/explorer.c b/programs/explorer/explorer.c
index 0116d53..76bbd03 100644
--- a/programs/explorer/explorer.c
+++ b/programs/explorer/explorer.c
@@ -620,7 +620,7 @@ static IShellFolder* get_starting_shell_folder(parameters_struct* params)
     return folder;
 }
 
-static int copy_path_string(LPWSTR target, LPWSTR source)
+static WCHAR *copy_path_string(WCHAR *target, WCHAR *source)
 {
     INT i = 0;
 
@@ -629,10 +629,9 @@ static int copy_path_string(LPWSTR target, LPWSTR source)
     if (*source == '\"')
     {
         source ++;
-        while (*source != '\"') target[i++] = *source++;
+        while (*source && *source != '\"') target[i++] = *source++;
         target[i] = 0;
-        source ++;
-        i+=2;
+        if (*source) source++;
     }
     else
     {
@@ -640,7 +639,7 @@ static int copy_path_string(LPWSTR target, LPWSTR source)
         target[i] = 0;
     }
     PathRemoveBackslashW(target);
-    return i;
+    return source;
 }
 
 
@@ -703,12 +702,12 @@ static void parse_command_line(LPWSTR commandline,parameters_struct *parameters)
         else if (strncmpW(p, arg_root, sizeof(arg_root)/sizeof(WCHAR))==0)
         {
             p += sizeof(arg_root)/sizeof(WCHAR);
-            p+=copy_path_string(parameters->root,p);
+            p = copy_path_string(parameters->root,p);
         }
         else if (strncmpW(p, arg_select, sizeof(arg_select)/sizeof(WCHAR))==0)
         {
             p += sizeof(arg_select)/sizeof(WCHAR);
-            p+=copy_path_string(parameters->selection,p);
+            p = copy_path_string(parameters->selection,p);
             if (!parameters->root[0])
                 copy_path_root(parameters->root,
                                parameters->selection);