63 lines
2.4 KiB
C
63 lines
2.4 KiB
C
/*
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* mkbootimg/jamesm.c
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*
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* Copyright (C) 2017 - 2021 bzt (bztsrc@gitlab)
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* This file is part of the BOOTBOOT Protocol package.
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* @brief Driver for James Molloy's initrd
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* See http://jamesmolloy.co.uk/tutorial_html/8.-The%20VFS%20and%20the%20initrd.html
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*
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*/
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#include "main.h"
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void jamesm_open(gpt_t *gpt_entry)
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{
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if(gpt_entry) { fprintf(stderr,"mkbootimg: partition #%d %s jamesm.\r\n", fs_no, lang[ERR_INITRDTYPE]); exit(1); }
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fs_len = 4 + 64 * 73;
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fs_base = realloc(fs_base, fs_len);
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if(!fs_base) { fprintf(stderr,"mkbootimg: %s\r\n", lang[ERR_MEM]); exit(1); }
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memset(fs_base, 0, fs_len);
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}
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void jamesm_add(struct stat *st, char *name, unsigned char *content, int size)
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{
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unsigned char *end;
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if(!S_ISREG(st->st_mode) || !content || !size) return;
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fs_base = realloc(fs_base, fs_len + size);
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if(!fs_base) { fprintf(stderr,"mkbootimg: %s\r\n", lang[ERR_MEM]); exit(1); }
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/* this format is specified to hold maximum 64 files... */
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if(fs_base[0] > 63) { fprintf(stderr,"mkbootimg: %s\r\n", lang[ERR_TOOMANY]); exit(1); }
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end = fs_base + fs_len;
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memcpy(end, content, size);
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fs_base[4 + fs_base[0]*73] = 0xBF;
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strncpy((char*)&fs_base[5 + fs_base[0]*73], name, 63);
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memcpy(&fs_base[69 + fs_base[0]*73], &fs_len, 4);
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memcpy(&fs_base[73 + fs_base[0]*73], &size, 4);
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fs_base[0]++;
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fs_len += size;
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}
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void jamesm_close()
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{
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}
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