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p7utils/src/g1a-wrapper/main.c

101 lines
2.7 KiB
C

/* *****************************************************************************
* g1a-wrapper/main.c -- g1a-wrapper main source.
* Copyright (C) 2016-2017 Thomas "Cakeisalie5" Touhey <thomas@touhey.fr>
*
* This file is part of p7utils.
* p7utils 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 2.0 of the License,
* or (at your option) any later version.
*
* p7utils 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 p7utils; if not, see <http://www.gnu.org/licenses/>.
* ************************************************************************** */
#include "main.h"
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <libg1m.h>
/* ************************************************************************** */
/* Main function */
/* ************************************************************************** */
/**
* main:
* User entry point of the program.
*
* @arg ac arguments count.
* @arg av arguments values.
* @return return code (0 if ok)
*/
int main(int ac, char **av)
{
int ret = 1; FILE *in = NULL;
g1m_handle_t *handle = NULL;
/* Parse args */
args_t args;
if (!parse_args(ac, av, &args))
return (0);
/* get file length */
in = fopen(args.infile, "r");
if (!in) {
err("couldn't open input file: %s", strerror(errno));
goto fail;
}
if (fseek(in, 0L, SEEK_END) < 0) {
err("couldn't seek in file.");
goto fail;
}
long off = ftell(in);
if (off < 0L)
goto fail;
size_t sz = (off < 0) ? SIZE_MAX : (size_t)off;
if (fseek(in, 0L, SEEK_SET))
goto fail;
/* make the handle */
int err = g1m_make_addin(&handle, g1m_platform_fx, sz,
args.name, args.intname, &args.version, &args.date);
if (err) {
err("couldn't make libg1m handle: %s", g1m_strerror(err));
goto fail;
}
/* decode the icon */
open_icon(args.iconfile, handle->icon_unsel);
/* copy the file content */
unsigned char *p = handle->content;
while (sz) {
size_t rd = fread(p, 1, sz, in);
if (!rd) {
err("couldn't read binary data: %s", strerror(errno));
goto fail;
}
sz -= rd; p += rd;
}
/* encode */
err = g1m_write(handle, args.outfile);
if (err) {
err("couldn't write to output file: %s",
err == g1m_error_nostream ? strerror(errno) : g1m_strerror(err));
goto fail;
}
/* we're good */
ret = 0;
fail:
if (in) fclose(in);
if (handle) g1m_free(handle);
return (ret);
}