Roman Pišl : server: Add console process list ioctl.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 6559134702cea8aca0547e2c0059efe6f0e5211c
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=6559134702cea8aca0547e2c0059efe6f0e5211c

Author: Roman Pišl <rpisl at seznam.cz>
Date:   Sat Feb 12 12:56:03 2022 +0100

server: Add console process list ioctl.

Signed-off-by: Roman Pišl <rpisl at seznam.cz>
Signed-off-by: Jacek Caban <jacek at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 include/wine/condrv.h |  1 +
 server/console.c      | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 49 insertions(+)

diff --git a/include/wine/condrv.h b/include/wine/condrv.h
index b5e294b9401..4515249a673 100644
--- a/include/wine/condrv.h
+++ b/include/wine/condrv.h
@@ -43,6 +43,7 @@
 #define IOCTL_CONDRV_BEEP                  CTL_CODE(FILE_DEVICE_CONSOLE, 20, METHOD_BUFFERED, FILE_ANY_ACCESS)
 #define IOCTL_CONDRV_FLUSH                 CTL_CODE(FILE_DEVICE_CONSOLE, 21, METHOD_BUFFERED, FILE_ANY_ACCESS)
 #define IOCTL_CONDRV_GET_WINDOW            CTL_CODE(FILE_DEVICE_CONSOLE, 22, METHOD_BUFFERED, FILE_ANY_ACCESS)
+#define IOCTL_CONDRV_GET_PROCESS_LIST      CTL_CODE(FILE_DEVICE_CONSOLE, 23, METHOD_BUFFERED, FILE_ANY_ACCESS)
 
 /* console output ioctls */
 #define IOCTL_CONDRV_WRITE_CONSOLE         CTL_CODE(FILE_DEVICE_CONSOLE, 30, METHOD_BUFFERED, FILE_WRITE_ACCESS)
diff --git a/server/console.c b/server/console.c
index 5407fba1411..3fb7d8ab237 100644
--- a/server/console.c
+++ b/server/console.c
@@ -707,6 +707,27 @@ static void propagate_console_signal( struct console *console,
     enum_processes(propagate_console_signal_cb, &csi);
 }
 
+struct console_process_list
+{
+    unsigned int    size;
+    unsigned int    count;
+    process_id_t   *processes;
+    struct console *console;
+};
+
+static int console_process_list_cb(struct process *process, void *user)
+{
+    struct console_process_list *cpl = user;
+
+    if (process->console == cpl->console)
+    {
+        if (cpl->count < cpl->size) cpl->processes[cpl->count] = process->id;
+        cpl->count++;
+    }
+
+    return 0;
+}
+
 /* dumb dump */
 static void console_dump( struct object *obj, int verbose )
 {
@@ -963,6 +984,33 @@ static void console_ioctl( struct fd *fd, ioctl_code_t code, struct async *async
             return;
         }
 
+    case IOCTL_CONDRV_GET_PROCESS_LIST:
+        {
+            struct console_process_list cpl;
+            if (get_reply_max_size() < sizeof(unsigned int))
+            {
+                set_error( STATUS_INVALID_PARAMETER );
+                return;
+            }
+
+            cpl.count = 0;
+            cpl.size = 0;
+            cpl.console = console;
+            enum_processes( console_process_list_cb, &cpl );
+            if (cpl.count * sizeof(process_id_t) > get_reply_max_size())
+            {
+                set_reply_data( &cpl.count, sizeof(cpl.count) );
+                set_error( STATUS_BUFFER_TOO_SMALL );
+                return;
+            }
+
+            cpl.size = cpl.count;
+            cpl.count = 0;
+            if ((cpl.processes = set_reply_data_size( cpl.size * sizeof(process_id_t) )))
+                enum_processes( console_process_list_cb, &cpl );
+            return;
+        }
+
     default:
         if (!console->server || code >> 16 != FILE_DEVICE_CONSOLE)
         {