88 lines
1.7 KiB
C
88 lines
1.7 KiB
C
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/* Copyright 2007, Google Inc. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/stat.h>
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int main(int argc, char *argv[])
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{
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struct stat s;
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unsigned size, base;
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int unified_boot = 0;
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unsigned unified_boot_magic[20];
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unsigned non_unified_boot_magic[10];
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unsigned magic_len = 0;
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unsigned *magic;
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int fd;
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if(argc < 3) {
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fprintf(stderr,"usage: mkheader <bin> <hdr>\n");
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return -1;
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}
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if (argc == 4) {
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if(!strcmp("unified-boot",argv[3])) {
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unified_boot = 1;
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}
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}
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if(stat(argv[1], &s)) {
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perror("cannot stat binary");
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return -1;
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}
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if(unified_boot) {
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magic = unified_boot_magic;
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magic_len = sizeof(unified_boot_magic);
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} else {
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magic = non_unified_boot_magic;
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magic_len = sizeof(non_unified_boot_magic);
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}
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size = s.st_size;
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base = 0;
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magic[0] = 0x00000005; /* appsbl */
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magic[1] = 0x00000002; /* nand */
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magic[2] = 0x00000000;
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magic[3] = base;
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magic[4] = size;
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magic[5] = size;
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magic[6] = size + base;
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magic[7] = 0x00000000;
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magic[8] = size + base;
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magic[9] = 0x00000000;
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if (unified_boot == 1)
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{
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magic[10] = 0x33836685; /* cookie magic number */
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magic[11] = 0x00000001; /* cookie version */
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magic[12] = 0x00000002; /* file formats */
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magic[13] = 0x00000000;
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magic[14] = 0x00500000; /* 5M for boot.img */
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magic[15] = 0x00000000;
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magic[16] = 0x00000000;
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magic[17] = 0x00000000;
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magic[18] = 0x00000000;
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magic[19] = 0x00000000;
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}
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fd = open(argv[2], O_WRONLY | O_CREAT | O_TRUNC, 0644);
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if(fd < 0) {
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perror("cannot open header for writing");
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return -1;
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}
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if(write(fd, magic, magic_len) != magic_len) {
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perror("cannot write header");
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close(fd);
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unlink(argv[2]);
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return -1;
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}
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close(fd);
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return 0;
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}
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