mirror of
https://gitlab.com/bztsrc/bootboot.git
synced 2023-02-13 20:54:32 -05:00
71 lines
2.8 KiB
C
71 lines
2.8 KiB
C
/*
|
|
* mkbootimg/tar.c
|
|
*
|
|
* Copyright (C) 2017 - 2021 bzt (bztsrc@gitlab)
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person
|
|
* obtaining a copy of this software and associated documentation
|
|
* files (the "Software"), to deal in the Software without
|
|
* restriction, including without limitation the rights to use, copy,
|
|
* modify, merge, publish, distribute, sublicense, and/or sell copies
|
|
* of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
|
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
* DEALINGS IN THE SOFTWARE.
|
|
*
|
|
* This file is part of the BOOTBOOT Protocol package.
|
|
* @brief POSIX ustar file system driver
|
|
* See https://en.wikipedia.org/wiki/Tarball_(computing)#UStar_format
|
|
*
|
|
*/
|
|
#include "main.h"
|
|
|
|
void tar_open(gpt_t *gpt_entry)
|
|
{
|
|
if(gpt_entry && (gpt_entry->last - gpt_entry->start) < 1) {
|
|
fprintf(stderr,"mkbootimg: partition #%d %s\r\n", fs_no, lang[ERR_NOSIZE]);
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
void tar_add(struct stat *st, char *name, unsigned char *content, int size)
|
|
{
|
|
unsigned char *end;
|
|
int i, j = 0;
|
|
if(!S_ISREG(st->st_mode) && !S_ISDIR(st->st_mode) && !S_ISLNK(st->st_mode)) return;
|
|
fs_base = realloc(fs_base, fs_len + 512 + ((size + 511) & ~511));
|
|
if(!fs_base) { fprintf(stderr,"mkbootimg: %s\r\n",lang[ERR_MEM]); exit(1); }
|
|
end = fs_base + fs_len;
|
|
memset(end, 0, 512);
|
|
strncpy((char*)end, name, 99);
|
|
sprintf((char*)end + 100, "%07o", st->st_mode & 077777);
|
|
sprintf((char*)end + 108, "%07o", 0);
|
|
sprintf((char*)end + 116, "%07o", 0);
|
|
sprintf((char*)end + 124, "%011o", size);
|
|
sprintf((char*)end + 136, "%011o", 0);
|
|
sprintf((char*)end + 148, "%06o", 0);
|
|
sprintf((char*)end + 155, " %1d", S_ISDIR(st->st_mode) ? 5 : (S_ISLNK(st->st_mode) ? 2 : 0));
|
|
if(S_ISLNK(st->st_mode)) { strncpy((char*)end + 157, (char*)content, 99); size = 0; }
|
|
memcpy(end + 257, "ustar ", 7);
|
|
memcpy(end + 265, "root", 4); memcpy(end + 297, "root", 4);
|
|
for(i = 0; i < 512; i++) j += end[i];
|
|
for(i = 0; i < 8; i++) j += ' ' - end[148 + i];
|
|
sprintf((char*)end + 148, "%06o", j);
|
|
end += 512;
|
|
if(content && size) { memcpy(end, content, size); memset(end + size, 0, ((size + 511) & ~511) - size); }
|
|
fs_len += 512 + ((size + 511) & ~511);
|
|
}
|
|
|
|
void tar_close()
|
|
{
|
|
}
|