char: Factor out qmp_add_client() parts and move to chardev/

Code moves from MAINTAINERS section "QMP" to "Character device
backends".

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-5-armbru@redhat.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/chardev/char.c b/chardev/char.c
index 87ab6efbcc..11eab7764c 100644
--- a/chardev/char.c
+++ b/chardev/char.c
@@ -25,6 +25,7 @@
 #include "qemu/osdep.h"
 #include "qemu/cutils.h"
 #include "monitor/monitor.h"
+#include "monitor/qmp-helpers.h"
 #include "qemu/config-file.h"
 #include "qemu/error-report.h"
 #include "qemu/qemu-print.h"
@@ -1166,6 +1167,25 @@ void qmp_chardev_send_break(const char *id, Error **errp)
     qemu_chr_be_event(chr, CHR_EVENT_BREAK);
 }
 
+bool qmp_add_client_char(int fd, bool has_skipauth, bool skipauth,
+                         bool has_tls, bool tls, const char *protocol,
+                         Error **errp)
+{
+    Chardev *s = qemu_chr_find(protocol);
+
+    if (!s) {
+        error_setg(errp, "protocol '%s' is invalid", protocol);
+        close(fd);
+        return false;
+    }
+    if (qemu_chr_add_client(s, fd) < 0) {
+        error_setg(errp, "failed to add client");
+        close(fd);
+        return false;
+    }
+    return true;
+}
+
 /*
  * Add a timeout callback for the chardev (in milliseconds), return
  * the GSource object created. Please use this to add timeout hook for