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From: David Gibson <david@gibson.dropbear.id.au>
To: passt-dev@passt.top, Stefano Brivio <sbrivio@redhat.com>
Cc: David Gibson <david@gibson.dropbear.id.au>
Subject: [PATCH v2 03/14] nstool: Move description of its operation modes from comment to usage
Date: Thu,  6 Apr 2023 13:28:08 +1000	[thread overview]
Message-ID: <20230406032819.707441-4-david@gibson.dropbear.id.au> (raw)
In-Reply-To: <20230406032819.707441-1-david@gibson.dropbear.id.au>

Easier to see it there.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---
 test/nstool.c | 26 +++++++++++---------------
 1 file changed, 11 insertions(+), 15 deletions(-)

diff --git a/test/nstool.c b/test/nstool.c
index c38d96f..92909c2 100644
--- a/test/nstool.c
+++ b/test/nstool.c
@@ -4,20 +4,6 @@
  *
  * Copyright Red Hat
  * Author: David Gibson <david@gibson.dropbear.id.au>
- *
- * Can run in 3 modes:
- *
- *   nstool hold <path>
- *      Designed to be run inside a namespace, opens a Unix domain
- *      control socket at <path> and waits until instructed to stop
- *      with "nstool stop <path>"
- *   nstool pid <path>
- *      Prints the PID of the nstool hold process with control socket
- *      <path>.  This is given in the PID namespace where nstool pid
- *      is executed, not the one where nstool hold is running
- *   nstool stop <path>
- *      Instruct the nstool hold with control socket at <path> to
- *      exit.
  */
 
 #define _GNU_SOURCE
@@ -38,7 +24,17 @@
 
 static void usage(void)
 {
-	die("Usage: nstool hold|pid|stop <socket path>\n");
+	die("Usage:\n"
+	    "  nstool hold SOCK\n"
+	    "    Run within a set of namespaces, open a Unix domain socket\n"
+	    "    (the \"control socket\") at SOCK and wait for requests from\n"
+	    "    other nstool subcommands.\n"
+	    "  nstool pid SOCK\n"
+	    "    Print the pid of the nstool hold process with control socket\n"
+	    "    at SOCK, as seen in the caller's namespace.\n"
+	    "  nstool stop SOCK\n"
+	    "    Instruct the nstool hold with control socket at SOCK to\n"
+	    "    terminate.\n");
 }
 
 static void hold(int fd, const struct sockaddr_un *addr)
-- 
@@ -4,20 +4,6 @@
  *
  * Copyright Red Hat
  * Author: David Gibson <david@gibson.dropbear.id.au>
- *
- * Can run in 3 modes:
- *
- *   nstool hold <path>
- *      Designed to be run inside a namespace, opens a Unix domain
- *      control socket at <path> and waits until instructed to stop
- *      with "nstool stop <path>"
- *   nstool pid <path>
- *      Prints the PID of the nstool hold process with control socket
- *      <path>.  This is given in the PID namespace where nstool pid
- *      is executed, not the one where nstool hold is running
- *   nstool stop <path>
- *      Instruct the nstool hold with control socket at <path> to
- *      exit.
  */
 
 #define _GNU_SOURCE
@@ -38,7 +24,17 @@
 
 static void usage(void)
 {
-	die("Usage: nstool hold|pid|stop <socket path>\n");
+	die("Usage:\n"
+	    "  nstool hold SOCK\n"
+	    "    Run within a set of namespaces, open a Unix domain socket\n"
+	    "    (the \"control socket\") at SOCK and wait for requests from\n"
+	    "    other nstool subcommands.\n"
+	    "  nstool pid SOCK\n"
+	    "    Print the pid of the nstool hold process with control socket\n"
+	    "    at SOCK, as seen in the caller's namespace.\n"
+	    "  nstool stop SOCK\n"
+	    "    Instruct the nstool hold with control socket at SOCK to\n"
+	    "    terminate.\n");
 }
 
 static void hold(int fd, const struct sockaddr_un *addr)
-- 
2.39.2


  parent reply	other threads:[~2023-04-06  3:28 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-06  3:28 [PATCH v2 00/14] Improved tool for testing across multiple namespaces David Gibson
2023-04-06  3:28 ` [PATCH v2 01/14] nstool: Rename nsholder to nstool David Gibson
2023-04-06  3:28 ` [PATCH v2 02/14] nstool: Reverse parameters " David Gibson
2023-04-06  3:28 ` David Gibson [this message]
2023-04-06  3:28 ` [PATCH v2 04/14] nstool: Split some command line parsing and socket setup to subcommands David Gibson
2023-04-06  3:28 ` [PATCH v2 05/14] nstool: Replace "pid" subcommand with "info" subcommand David Gibson
2023-04-06  3:28 ` [PATCH v2 06/14] nstool: Detect what namespaces target is in David Gibson
2023-04-06  3:28 ` [PATCH v2 07/14] nstool: Add magic number to advertized information David Gibson
2023-04-06  3:28 ` [PATCH v2 08/14] nstool: Helpers to iterate through namespace types David Gibson
2023-04-06  3:28 ` [PATCH v2 09/14] nstool: Add nstool exec command to execute commands in an nstool namespace David Gibson
2023-04-06  3:28 ` [PATCH v2 10/14] nstool: Add --keep-caps option to nstool exec David Gibson
2023-04-06  3:28 ` [PATCH v2 11/14] test: Initialise ${TRACE} properly David Gibson
2023-04-06  3:28 ` [PATCH v2 12/14] test: Use "nstool exec" to slightly simplify tests David Gibson
2023-04-06  3:28 ` [PATCH v2 13/14] nstool: Advertise the holder's cwd (in its mountns) across the socket David Gibson
2023-04-06  3:28 ` [PATCH v2 14/14] nstool: Enter holder's cwd when changing mount ns with nstool exec David Gibson
2023-04-07 23:12 ` [PATCH v2 00/14] Improved tool for testing across multiple namespaces Stefano Brivio

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