Magisk/native/jni/magiskboot/format.c
2018-01-29 22:16:02 +08:00

82 lines
1.6 KiB
C

#include <string.h>
#include "bootimg.h"
#include "format.h"
format_t check_fmt(const void *buf) {
if (memcmp(buf, CHROMEOS_MAGIC, 8) == 0) {
return CHROMEOS;
} else if (memcmp(buf, BOOT_MAGIC, 8) == 0) {
return AOSP;
} else if (memcmp(buf, ELF32_MAGIC, 5) == 0) {
return ELF32;
} else if (memcmp(buf, ELF64_MAGIC, 5) == 0) {
return ELF64;
} else if (memcmp(buf, GZIP_MAGIC, 4) == 0) {
return GZIP;
} else if (memcmp(buf, LZOP_MAGIC, 9) == 0) {
return LZOP;
} else if (memcmp(buf, XZ_MAGIC, 6) == 0) {
return XZ;
} else if (memcmp(buf, "\x5d\x00\x00", 3) == 0
&& (((char *)buf)[12] == '\xff' || ((char *)buf)[12] == '\x00')) {
return LZMA;
} else if (memcmp(buf, BZIP_MAGIC, 3) == 0) {
return BZIP2;
} else if (memcmp(buf, LZ4_MAGIC, 4) == 0) {
return LZ4;
} else if (memcmp(buf, LZ4_LEG_MAGIC, 4) == 0) {
return LZ4_LEGACY;
} else if (memcmp(buf, MTK_MAGIC, 4) == 0) {
return MTK;
} else if (memcmp(buf, DTB_MAGIC, 4) == 0) {
return DTB;
} else if (memcmp(buf, DHTB_MAGIC, 8) == 0) {
return DHTB;
} else {
return UNKNOWN;
}
}
void get_fmt_name(format_t fmt, char *name) {
char *s;
switch (fmt) {
case CHROMEOS:
s = "chromeos";
break;
case AOSP:
s = "aosp";
break;
case GZIP:
s = "gzip";
break;
case LZOP:
s = "lzop";
break;
case XZ:
s = "xz";
break;
case LZMA:
s = "lzma";
break;
case BZIP2:
s = "bzip2";
break;
case LZ4:
s = "lz4";
break;
case LZ4_LEGACY:
s = "lz4_legacy";
break;
case MTK:
s = "mtk";
break;
case DTB:
s = "dtb";
break;
default:
s = "raw";
}
strcpy(name, s);
}