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Only compress kernel and ramdisk if input not compressed

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topjohnwu
2019-03-07 07:24:06 -05:00
parent a3fc6d2a27
commit 0442d6d509
5 changed files with 50 additions and 60 deletions
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34
native/jni/magiskboot/main.cpp
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@@ -14,20 +14,21 @@
static void usage(char *arg0) {
fprintf(stderr,
FULL_VER(MagiskBoot) " - Boot Image Modification Tool\n"
"Usage: %s <action> [args...]\n"
"\n"
"Supported actions:\n"
" --unpack <bootimg>\n"
" Unpack <bootimg> to kernel, ramdisk.cpio, and if available, second, dtb,\n"
" and extra into the current directory. Return values:\n"
" Unpack <bootimg> to, if available, kernel, ramdisk.cpio, \n"
" second, dtb, extra, and recovery_dtbo into current directory.\n"
" Return values:\n"
" 0:valid 1:error 2:chromeos 3:ELF32 4:ELF64\n"
"\n"
" --repack <origbootimg> [outbootimg]\n"
" Repack kernel, ramdisk.cpio[.ext], second, dtb... from current directory\n"
" Repack boot image components from current directory\n"
" to [outbootimg], or new-boot.img if not specified.\n"
" It will compress ramdisk.cpio with the same method used in <origbootimg>,\n"
" or attempt to find ramdisk.cpio.[ext], and repack directly with the\n"
" compressed ramdisk file\n"
" It will compress ramdisk.cpio and kernel with the same method in\n"
" <origbootimg> if the file provided is not already compressed.\n"
"\n"
" --hexpatch <file> <hexpattern1> <hexpattern2>\n"
" Search <hexpattern1> in <file>, and replace with <hexpattern2>\n"
@@ -80,16 +81,16 @@ static void usage(char *arg0) {
" <infile>/[outfile] can be '-' to be STDIN/STDOUT\n"
" Supported methods: "
, arg0);
for (int i = 0; SUP_LIST[i]; ++i)
fprintf(stderr, "%s ", SUP_LIST[i]);
for (auto &it : name2fmt)
fprintf(stderr, "%s ", it.first.data());
fprintf(stderr,
"\n\n"
" --decompress <infile> [outfile]\n"
" Detect method and decompress <infile>, optionally to [outfile]\n"
" <infile>/[outfile] can be '-' to be STDIN/STDOUT\n"
" Supported methods: ");
for (int i = 0; SUP_LIST[i]; ++i)
fprintf(stderr, "%s ", SUP_LIST[i]);
for (auto &it : name2fmt)
fprintf(stderr, "%s ", it.first.data());
fprintf(stderr,
"\n\n"
" --sha1 <file>\n"
@@ -104,31 +105,24 @@ static void usage(char *arg0) {
int main(int argc, char *argv[]) {
cmdline_logging();
fprintf(stderr, FULL_VER(MagiskBoot) " - Boot Image Modification Tool\n");
umask(0);
if (argc > 1 && strcmp(argv[1], "--cleanup") == 0) {
fprintf(stderr, "Cleaning up...\n");
char name[PATH_MAX];
unlink(KERNEL_FILE);
unlink(RAMDISK_FILE);
unlink(RAMDISK_FILE ".raw");
unlink(SECOND_FILE);
unlink(DTB_FILE);
unlink(EXTRA_FILE);
unlink(RECV_DTBO_FILE);
for (int i = 0; SUP_EXT_LIST[i]; ++i) {
sprintf(name, "%s.%s", RAMDISK_FILE, SUP_EXT_LIST[i]);
unlink(name);
}
} else if (argc > 2 && strcmp(argv[1], "--sha1") == 0) {
uint8_t sha1[SHA_DIGEST_SIZE];
void *buf;
size_t size;
mmap_ro(argv[2], buf, size);
SHA_hash(buf, size, sha1);
for (int i = 0; i < SHA_DIGEST_SIZE; ++i)
printf("%02x", sha1[i]);
for (uint8_t i : sha1)
printf("%02x", i);
printf("\n");
munmap(buf, size);
} else if (argc > 2 && strcmp(argv[1], "--unpack") == 0) {