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90 lines
2.5 KiB
90 lines
2.5 KiB
2 years ago
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From e6c69762f5f555fa17659e3440d8392b6a47bbc6 Mon Sep 17 00:00:00 2001
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From: Oskari Pirhonen <xxc3ncoredxx@gmail.com>
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Date: Mon, 8 Nov 2021 18:44:25 -0600
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Subject: [PATCH] Improved commandline help
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Output the descriptions of the commandline options in -h.
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Signed-off-by: Oskari Pirhonen <xxc3ncoredxx@gmail.com>
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---
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options.c | 25 +++++++++++++++++--------
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physlock.1 | 2 +-
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2 files changed, 18 insertions(+), 9 deletions(-)
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diff --git a/options.c b/options.c
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index 6ec3634..ed21262 100644
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--- a/options.c
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+++ b/options.c
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@@ -28,7 +28,16 @@ static options_t _options;
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const options_t *options = (const options_t*) &_options;
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void print_usage() {
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- printf("usage: physlock [-dhLlmsv] [-p MSG]\n");
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+ printf("Usage: physlock [-dhlLmsv] [-p MSG]\n");
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+ printf("Lock all consoles / virtual terminals.\n\n");
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+ printf(" -d Fork and detach physlock before prompting for authentication.\n");
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+ printf(" -h Print brief usage information to standard output and exit.\n");
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+ printf(" -l Only lock console switching and exit.\n");
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+ printf(" -L Only enable (unlock) console switching and exit.\n");
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+ printf(" -m Mute kernel messages on console while physlock is running.\n");
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+ printf(" -p MSG Display MSG before the password prompt.\n");
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+ printf(" -s Disable SysRq mechanism while physlock is running.\n");
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+ printf(" -v Print version information to standard output and exit.\n");
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}
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void print_version() {
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@@ -46,23 +55,20 @@ void parse_options(int argc, char **argv) {
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_options.lock_switch = -1;
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_options.mute_kernel_messages = 0;
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- while ((opt = getopt(argc, argv, "dhLlmp:sv")) != -1) {
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+ while ((opt = getopt(argc, argv, "dhlLmp:sv")) != -1) {
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switch (opt) {
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- case '?':
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- print_usage();
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- exit(1);
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case 'd':
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_options.detach = 1;
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break;
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case 'h':
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print_usage();
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exit(0);
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- case 'L':
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- _options.lock_switch = 0;
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- break;
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case 'l':
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_options.lock_switch = 1;
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break;
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+ case 'L':
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+ _options.lock_switch = 0;
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+ break;
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case 'm':
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_options.mute_kernel_messages = 1;
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break;
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@@ -75,6 +81,9 @@ void parse_options(int argc, char **argv) {
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case 'v':
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print_version();
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exit(0);
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+ case '?':
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+ print_usage();
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+ exit(1);
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}
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}
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}
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diff --git a/physlock.1 b/physlock.1
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index 32e8547..6243214 100644
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--- a/physlock.1
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+++ b/physlock.1
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@@ -3,7 +3,7 @@
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physlock \- lock all consoles / virtual terminals
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.SH SYNOPSIS
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.B physlock
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-.RB [ \-dhLlmsv ]
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+.RB [ \-dhlLmsv ]
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.RB [ \-p
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.IR MSG ]
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.SH DESCRIPTION
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--
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2.32.0
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