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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Fri, 20 Jul 2018 15:42:09 -0400 Received: from b01ledav003.gho.pok.ibm.com (b01ledav003.gho.pok.ibm.com [9.57.199.108]) by b01cxnp23032.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w6KJg8P110551644 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 20 Jul 2018 19:42:08 GMT Received: from b01ledav003.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 7DD34B2067; Fri, 20 Jul 2018 15:41:56 -0400 (EDT) Received: from b01ledav003.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 67340B2066; Fri, 20 Jul 2018 15:41:56 -0400 (EDT) Received: from collin-ThinkPad-W541.pok.ibm.com (unknown [9.56.58.144]) by b01ledav003.gho.pok.ibm.com (Postfix) with ESMTP; Fri, 20 Jul 2018 15:41:56 -0400 (EDT) From: Collin Walling To: qemu-devel@nongnu.org Date: Fri, 20 Jul 2018 15:40:24 -0400 X-Mailer: git-send-email 2.7.4 X-TM-AS-GCONF: 00 x-cbid: 18072019-0052-0000-0000-000003116920 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00009399; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000266; SDB=6.01063666; UDB=6.00546231; IPR=6.00841517; MB=3.00022234; MTD=3.00000008; XFM=3.00000015; UTC=2018-07-20 19:42:11 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18072019-0053-0000-0000-00005D6F2EC5 Message-Id: <1532115624-27568-1-git-send-email-walling@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2018-07-20_06:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1806210000 definitions=main-1807200217 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.156.1 Subject: [Qemu-devel] [PATCH v2] monitor: print message when using 'help' with an unknown command X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: stzi@linux.ibm.com, dgilbert@redhat.com, armbru@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" When typing 'help' followed by an unknown command, QEMU will not print anything to the command line to let the user know they typed a bad command. Let's fix this by printing a message to the monitor when this happens. For example: (qemu) help xyz unknown command: 'xyz' Reported-by: Stefan Zimmermann Signed-off-by: Collin Walling Reviewed-by: Dr. David Alan Gilbert --- monitor.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/monitor.c b/monitor.c index 7af1f18..deeb41c 100644 --- a/monitor.c +++ b/monitor.c @@ -1013,6 +1013,7 @@ static void help_cmd_dump(Monitor *mon, const mon_cmd= _t *cmds, char **args, int nb_args, int arg_index) { const mon_cmd_t *cmd; + size_t i; =20 /* No valid arg need to compare with, dump all in *cmds */ if (arg_index >=3D nb_args) { @@ -1034,9 +1035,15 @@ static void help_cmd_dump(Monitor *mon, const mon_cm= d_t *cmds, } else { help_cmd_dump_one(mon, cmd, args, arg_index); } - break; + return; } } + + /* Command not found */ + monitor_printf(mon, "unknown command: '"); + for (i =3D 0; i <=3D arg_index; i++) { + monitor_printf(mon, "%s%s", args[i], i =3D=3D arg_index ? "'\n" : = " "); + } } =20 static void help_cmd(Monitor *mon, const char *name) --=20 2.7.4