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Rename bootimgtool to magiskboot

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topjohnwu
2017-02-28 05:43:49 +08:00
parent f621fb2060
commit a839cb787e
11 changed files with 2 additions and 2 deletions
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92
jni/magiskboot/unpack.c Normal file
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@@ -0,0 +1,92 @@
#include "magiskboot.h"
static void dump(unsigned char *buf, size_t size, const char *filename) {
int ofd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0644);
if (ofd < 0)
error(1, "Cannot open %s", filename);
if (write(ofd, buf, size) != size)
error(1, "Cannot dump %s", filename);
close(ofd);
}
void unpack(const char* image) {
int fd = open(image, O_RDONLY);
if (fd < 0)
error(1, "Cannot open %s", image);
size_t size = lseek(fd, 0, SEEK_END);
lseek(fd, 0, SEEK_SET);
unsigned char *orig = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0);
// Parse image
parse_img(orig, size);
if (boot_type == CHROMEOS) {
// The caller should know it's chromeos, as it needs additional signing
dump(base, 0, "chromeos");
}
char name[PATH_MAX];
// Dump kernel
if (mtk_kernel) {
kernel += 512;
hdr.kernel_size -= 512;
}
dump(kernel, hdr.kernel_size, KERNEL_FILE);
// Dump ramdisk
if (mtk_ramdisk) {
ramdisk += 512;
hdr.ramdisk_size -= 512;
}
switch (ramdisk_type) {
case GZIP:
sprintf(name, "%s.%s", RAMDISK_FILE, "gz");
gzip(1, RAMDISK_FILE, ramdisk, hdr.ramdisk_size);
break;
case LZOP:
sprintf(name, "%s.%s", RAMDISK_FILE, "lzo");
break;
case XZ:
sprintf(name, "%s.%s", RAMDISK_FILE, "xz");
break;
case LZMA:
sprintf(name, "%s.%s", RAMDISK_FILE, "lzma");
break;
case BZIP2:
sprintf(name, "%s.%s", RAMDISK_FILE, "bz2");
break;
case LZ4:
sprintf(name, "%s.%s", RAMDISK_FILE, "lz4");
break;
default:
// Never happens
break;
}
// Dump the compressed ramdisk, just in case
dump(ramdisk, hdr.ramdisk_size, name);
if (hdr.second_size) {
// Dump second
dump(second, hdr.second_size, SECOND_FILE);
}
if (hdr.dt_size) {
if (boot_type == ELF && (dtb_type != QCDT && dtb_type != ELF )) {
printf("Non QC dtb found in ELF kernel, recreate kernel\n");
gzip(0, KERNEL_FILE, kernel, hdr.kernel_size);
int kfp = open(KERNEL_FILE, O_WRONLY | O_APPEND);
write(kfp, dtb, hdr.dt_size);
close(kfp);
} else {
// Dump dtb
dump(dtb, hdr.dt_size, DTB_FILE);
}
}
munmap(orig, size);
close(fd);
}