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/* cli.c -- Code for providing a command-line interface.
Copyright (C) 2017 Jakob Kreuze, All Rights Reserved.
This file is part of Nekopack.
Nekopack is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
Nekopack is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with Nekopack. If not, see <http://www.gnu.org/licenses/>. */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
#include "cli.h"
#include "crypto.h"
#define NEKOPACK_VERSION "2.1.0"
/* Copies `optarg` into the out member of `p` and ensures that it has a
trailing path delimiter. */
static void parse_output_path(const char *optarg, struct params *p) {
p->out_len = strlen(optarg);
p->out = malloc(p->out_len + 2);
if (p->out == NULL)
return;
strcpy(p->out, optarg);
if (p->out[p->out_len - 1] != '/') {
p->out[p->out_len] = '/';
p->out_len += 1;
}
}
static void parse_game_id(const char *optarg, struct params *p) {
if (!strcmp(optarg, "nekopara_volume_0"))
p->game = NEKOPARA_VOLUME_0;
else if (!strcmp(optarg, "nekopara_volume_0_steam"))
p->game = NEKOPARA_VOLUME_0_STEAM;
else if (!strcmp(optarg, "nekopara_volume_1"))
p->game = NEKOPARA_VOLUME_1;
else if (!strcmp(optarg, "nekopara_volume_1_steam"))
p->game = NEKOPARA_VOLUME_1_STEAM;
}
struct params parse_args(int argc, char **argv) {
/* getopt maintains external state which needs to be reset each time
`parse_args` is called, otherwise strange things will occur. */
optind = 1;
opterr = 1;
optopt = 63;
struct params p = {0};
if (argc < 2) {
p.mode = USAGE;
return p;
}
p.mode = EXTRACT;
int cur = 0, opt_index = 0, count = 0;
static struct option long_opts[] = {
{"help", no_argument, NULL, 'h'},
{"version", no_argument, NULL, 'V'},
{"verbose", no_argument, NULL, 'v'},
{"extract", no_argument, NULL, 'e'},
{"list", no_argument, NULL, 'l'},
{"create", no_argument, NULL, 'c'},
{"output", no_argument, NULL, 'o'},
{"game", no_argument, NULL, 'g'},
{NULL, 0, NULL, 0}
};
do {
count++;
cur = getopt_long(argc, argv, "hVvelcqo:g:", long_opts, &opt_index);
switch (cur) {
case 'h':
p.mode = HELP;
return p;
case 'V':
p.mode = VERSION;
return p;
case 'v':
p.verbose = true;
break;
case 'o':
count++;
parse_output_path(optarg, &p);
break;
case 'g':
count++;
parse_game_id(optarg, &p);
break;
case 'e':
p.mode = EXTRACT;
break;
case 'l':
p.mode = LIST;
break;
case 'c':
p.mode = CREATE;
}
} while (cur >= 0);
if (count == argc) {
p.mode = USAGE;
return p;
}
p.vararg_index = count;
if (p.out == NULL) {
p.out_len = 2;
p.out = malloc(3);
strcpy(p.out, "./");
}
return p;
}
void print_usage(char *progn) {
fprintf(stderr, "Usage: %s [OPTIONS] (ARCHIVES) [PATHS]\n", progn);
}
void print_version(void) {
printf("Nekopack version %s\nProgrammed by Jakob. "
"<http://jakob.space>\n", NEKOPACK_VERSION);
}
void print_help(void) {
printf("A tool for decompressing the XP3 archives used by Nekopara.\n\n"
" -h, --help\t\tDisplay this help page and exit.\n"
" -v, --version\tDisplay the currently installed version and "
"exit.\n\n"
" -e, --extract\tExtract the contents of the archive. This is "
"the default\n\t\t\taction if no mode argument is provided.\n"
" -l, --list\t\tList the contents of the archive.\n"
" -c, --create\t\tCreate a new XP3 archive.\n"
" -d, --debug\t\tDisplay the archive's table and metadata.\n\n"
" -o, --output\t\tPath to extract files to.\n"
" -g, --game\t\tGame the archive is from. Required for file "
"decryption.\n"
" -q, --quiet\t\tDon't display information about extracted "
"files.\n\n"
"Supported games: nekopara_volume_0, nekopara_volume_0_steam,\n"
"nekopara_volume_1, nekopara_volume_1_steam\n");
}
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