mirror of https://github.com/topjohnwu/Magisk
124 lines
3.9 KiB
C++
124 lines
3.9 KiB
C++
#pragma once
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#include <sys/mman.h>
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#include <sys/stat.h>
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#include <mntent.h>
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#include <functional>
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#include <string_view>
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#include <string>
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#include <vector>
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#include "xwrap.hpp"
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template <typename T>
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static inline T align_to(T v, int a) {
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static_assert(std::is_integral<T>::value);
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return (v + a - 1) / a * a;
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}
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template <typename T>
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static inline T align_padding(T v, int a) {
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return align_to(v, a) - v;
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}
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struct file_attr {
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struct stat st;
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char con[128];
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};
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struct byte_data {
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using str_pairs = std::initializer_list<std::pair<std::string_view, std::string_view>>;
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uint8_t *buf = nullptr;
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size_t sz = 0;
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int patch(str_pairs list) { return patch(true, list); }
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int patch(bool log, str_pairs list);
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bool contains(std::string_view pattern, bool log = true) const;
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protected:
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void swap(byte_data &o);
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};
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struct raw_file {
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std::string path;
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file_attr attr;
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std::string content;
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raw_file() : attr{} {}
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raw_file(const raw_file&) = delete;
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raw_file(raw_file &&o) : path(std::move(o.path)), attr(o.attr), content(std::move(o.content)) {}
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};
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struct mmap_data : public byte_data {
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mmap_data() = default;
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mmap_data(const mmap_data&) = delete;
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mmap_data(mmap_data &&o) { swap(o); }
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mmap_data(const char *name, bool rw = false);
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~mmap_data() { if (buf) munmap(buf, sz); }
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mmap_data& operator=(mmap_data &&other) { swap(other); return *this; }
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};
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ssize_t fd_path(int fd, char *path, size_t size);
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int fd_pathat(int dirfd, const char *name, char *path, size_t size);
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int mkdirs(std::string path, mode_t mode);
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void rm_rf(const char *path);
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void mv_path(const char *src, const char *dest);
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void mv_dir(int src, int dest);
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void cp_afc(const char *src, const char *dest);
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void link_path(const char *src, const char *dest);
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void link_dir(int src, int dest);
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int getattr(const char *path, file_attr *a);
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int getattrat(int dirfd, const char *name, file_attr *a);
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int fgetattr(int fd, file_attr *a);
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int setattr(const char *path, file_attr *a);
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int setattrat(int dirfd, const char *name, file_attr *a);
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int fsetattr(int fd, file_attr *a);
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void fclone_attr(int src, int dest);
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void clone_attr(const char *src, const char *dest);
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void full_read(int fd, std::string &str);
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void full_read(const char *filename, std::string &str);
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std::string full_read(int fd);
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std::string full_read(const char *filename);
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void write_zero(int fd, size_t size);
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void file_readline(bool trim, FILE *fp, const std::function<bool(std::string_view)> &fn);
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void file_readline(bool trim, const char *file, const std::function<bool(std::string_view)> &fn);
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void file_readline(const char *file, const std::function<bool(std::string_view)> &fn);
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void parse_prop_file(FILE *fp, const std::function<bool(std::string_view, std::string_view)> &fn);
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void parse_prop_file(const char *file,
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const std::function<bool(std::string_view, std::string_view)> &fn);
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void frm_rf(int dirfd);
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void clone_dir(int src, int dest);
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void parse_mnt(const char *file, const std::function<bool(mntent*)> &fn);
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void backup_folder(const char *dir, std::vector<raw_file> &files);
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void restore_folder(const char *dir, std::vector<raw_file> &files);
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std::string find_apk_path(const char *pkg);
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using sFILE = std::unique_ptr<FILE, decltype(&fclose)>;
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using sDIR = std::unique_ptr<DIR, decltype(&closedir)>;
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sDIR make_dir(DIR *dp);
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sFILE make_file(FILE *fp);
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static inline sDIR open_dir(const char *path) {
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return make_dir(opendir(path));
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}
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static inline sDIR xopen_dir(const char *path) {
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return make_dir(xopendir(path));
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}
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static inline sDIR xopen_dir(int dirfd) {
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return make_dir(xfdopendir(dirfd));
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}
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static inline sFILE open_file(const char *path, const char *mode) {
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return make_file(fopen(path, mode));
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}
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static inline sFILE xopen_file(const char *path, const char *mode) {
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return make_file(xfopen(path, mode));
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}
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static inline sFILE xopen_file(int fd, const char *mode) {
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return make_file(xfdopen(fd, mode));
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}
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