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MagiskInit optimizations

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topjohnwu
2018-07-17 06:18:36 +08:00
parent c2e673f978
commit 18d0fd9d2a
3 changed files with 46 additions and 73 deletions
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29
native/jni/utils/pattern.c
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@ -29,35 +29,6 @@ static int check_encryption_pattern(const char *s) {
return -1;
}
void patch_init_rc(void **buf, size_t *size) {
int injected = 0;
char *new_data = malloc(*size + 23);
char *old_data = *buf;
size_t pos = 0;
for (char *tok = strsep(&old_data, "\n"); tok; tok = strsep(&old_data, "\n")) {
if (!injected && strncmp(tok, "import", 6) == 0) {
if (strstr(tok, "init.magisk.rc")) {
injected = 1;
} else {
strcpy(new_data + pos, "import /init.magisk.rc\n");
pos += 23;
injected = 1;
}
} else if (strstr(tok, "selinux.reload_policy")) {
continue;
}
// Copy the line
strcpy(new_data + pos, tok);
pos += strlen(tok);
new_data[pos++] = '\n';
}
free(*buf);
*size = pos;
*buf = new_data;
}
int patch_verity(void **buf, uint32_t *size, int patch) {
int skip, src_size = *size, found = 0;
char *src = *buf, *patched = patch ? xcalloc(src_size, 1) : NULL;