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unl0kr: add a CLI option to show a custom message

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Fixes: #33
This commit is contained in:
Vladimir Stoiakin 2025-03-12 11:11:22 +03:00
parent 18b576f259
commit 84d47d2824
9 changed files with 132 additions and 55 deletions
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9
unl0kr/command_line.c
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@ -13,6 +13,7 @@
#include <getopt.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/**
@ -39,6 +40,7 @@ static void print_usage();
static void init_opts(ul_cli_opts *opts) {
opts->num_config_files = 0;
opts->config_files = NULL;
opts->message = NULL;
opts->hor_res = -1;
opts->ver_res = -1;
opts->x_offset = 0;
@ -58,6 +60,7 @@ static void print_usage() {
"password is printed to STDOUT. All other output happens on STDERR.\n"
"\n"
"Mandatory arguments to long options are mandatory for short options too.\n"
" -m, --message A message that will be displayed to a user\n"
" -C, --config-override Path to a config override file. Can be supplied\n"
" multiple times. Config files are merged in the\n"
" following order:\n"
@ -93,6 +96,7 @@ void ul_cli_parse_opts(int argc, char *argv[], ul_cli_opts *opts) {
init_opts(opts);
struct option long_opts[] = {
{ "message", required_argument, NULL, 'm' },
{ "config-override", required_argument, NULL, 'C' },
{ "geometry", required_argument, NULL, 'g' },
{ "dpi", required_argument, NULL, 'd' },
@ -105,8 +109,11 @@ void ul_cli_parse_opts(int argc, char *argv[], ul_cli_opts *opts) {
int opt, index = 0;
while ((opt = getopt_long(argc, argv, "C:g:d:r:hnvV", long_opts, &index)) != -1) {
while ((opt = getopt_long(argc, argv, "m:C:g:d:r:hnvV", long_opts, &index)) != -1) {
switch (opt) {
case 'm':
opts->message = strdup(optarg);
break;
case 'C':
opts->config_files = realloc(opts->config_files, (opts->num_config_files + 1) * sizeof(char *));
if (!opts->config_files) {