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Support patching header in magiskboot

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This commit is contained in:
topjohnwu
2019-03-07 21:32:01 -05:00
parent d2cb638fcd
commit 1287372f5a
3 changed files with 73 additions and 5 deletions
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15
native/jni/magiskboot/main.cpp
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@@ -18,9 +18,11 @@ static void usage(char *arg0) {
"Usage: %s <action> [args...]\n"
"\n"
"Supported actions:\n"
" unpack <bootimg>\n"
" Unpack <bootimg> to, if available, kernel, ramdisk.cpio, \n"
" unpack [-h] <bootimg>\n"
" Unpack <bootimg> to, if available, kernel, ramdisk.cpio,\n"
" second, dtb, extra, and recovery_dtbo into current directory.\n"
" If '-h' is provided, it will dump header info to 'header',\n"
" which will be parsed when repacking.\n"
" Return values:\n"
" 0:valid 1:error 2:chromeos 3:ELF32 4:ELF64\n"
"\n"
@@ -116,6 +118,7 @@ int main(int argc, char *argv[]) {
if (strcmp(argv[1], "cleanup") == 0) {
fprintf(stderr, "Cleaning up...\n");
unlink(HEADER_FILE);
unlink(KERNEL_FILE);
unlink(RAMDISK_FILE);
unlink(SECOND_FILE);
@@ -133,7 +136,13 @@ int main(int argc, char *argv[]) {
printf("\n");
munmap(buf, size);
} else if (argc > 2 && strcmp(argv[1], "unpack") == 0) {
return unpack(argv[2]);
if (strcmp(argv[2], "-h") == 0) {
if (argc == 3)
usage(argv[0]);
return unpack(argv[3], true);
} else {
return unpack(argv[2]);
}
} else if (argc > 2 && strcmp(argv[1], "repack") == 0) {
repack(argv[2], argv[3] ? argv[3] : NEW_BOOT);
} else if (argc > 2 && strcmp(argv[1], "decompress") == 0) {