forked from MarcoBuster/Magisk
53 lines
1.3 KiB
C++
53 lines
1.3 KiB
C++
#include "raw_data.hpp"
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using namespace std;
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int mmap_data::patch(str_pairs list) {
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if (buf == nullptr)
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return 0;
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int count = 0;
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for (uint8_t *p = buf, *eof = buf + sz; p < eof; ++p) {
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for (auto [from, to] : list) {
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if (memcmp(p, from.data(), from.length() + 1) == 0) {
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LOGD("Replace [%s] -> [%s]\n", from.data(), to.data());
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memset(p, 0, from.length());
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memcpy(p, to.data(), to.length());
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++count;
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p += from.length();
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}
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}
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}
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return count;
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}
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bool mmap_data::contains(string_view pattern) {
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if (buf == nullptr)
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return false;
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for (uint8_t *p = buf, *eof = buf + sz; p < eof; ++p) {
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if (memcmp(p, pattern.data(), pattern.length() + 1) == 0) {
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LOGD("Found pattern [%s]\n", pattern.data());
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return true;
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}
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}
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return false;
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}
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void mmap_data::consume(mmap_data &other) {
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buf = other.buf;
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sz = other.sz;
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other.buf = nullptr;
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other.sz = 0;
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}
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mmap_data mmap_data::rw(const char *name) {
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mmap_data data;
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mmap_rw(name, data.buf, data.sz);
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return data;
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}
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mmap_data mmap_data::ro(const char *name) {
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mmap_data data;
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mmap_ro(name, data.buf, data.sz);
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return data;
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}
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