mirror of
https://github.com/topjohnwu/Magisk.git
synced 2024-12-29 17:57:39 +00:00
525 lines
11 KiB
C++
525 lines
11 KiB
C++
#include <sched.h>
|
|
#include <unistd.h>
|
|
#include <pthread.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/mount.h>
|
|
#include <sys/mman.h>
|
|
#include <sys/sendfile.h>
|
|
#include <sys/ptrace.h>
|
|
#include <sys/inotify.h>
|
|
|
|
#include <base.hpp>
|
|
|
|
using namespace std;
|
|
|
|
FILE *xfopen(const char *pathname, const char *mode) {
|
|
FILE *fp = fopen(pathname, mode);
|
|
if (fp == nullptr) {
|
|
PLOGE("fopen: %s", pathname);
|
|
}
|
|
return fp;
|
|
}
|
|
|
|
FILE *xfdopen(int fd, const char *mode) {
|
|
FILE *fp = fdopen(fd, mode);
|
|
if (fp == nullptr) {
|
|
PLOGE("fopen");
|
|
}
|
|
return fp;
|
|
}
|
|
|
|
int xopen(const char *pathname, int flags) {
|
|
int fd = open(pathname, flags);
|
|
if (fd < 0) {
|
|
PLOGE("open: %s", pathname);
|
|
}
|
|
return fd;
|
|
}
|
|
|
|
int xopen(const char *pathname, int flags, mode_t mode) {
|
|
int fd = open(pathname, flags, mode);
|
|
if (fd < 0) {
|
|
PLOGE("open: %s", pathname);
|
|
}
|
|
return fd;
|
|
}
|
|
|
|
int xopenat(int dirfd, const char *pathname, int flags) {
|
|
int fd = openat(dirfd, pathname, flags);
|
|
if (fd < 0) {
|
|
PLOGE("openat: %s", pathname);
|
|
}
|
|
return fd;
|
|
}
|
|
|
|
int xopenat(int dirfd, const char *pathname, int flags, mode_t mode) {
|
|
int fd = openat(dirfd, pathname, flags, mode);
|
|
if (fd < 0) {
|
|
PLOGE("openat: %s", pathname);
|
|
}
|
|
return fd;
|
|
}
|
|
|
|
// Write exact same size as count
|
|
ssize_t xwrite(int fd, const void *buf, size_t count) {
|
|
size_t write_sz = 0;
|
|
ssize_t ret;
|
|
do {
|
|
ret = write(fd, (byte *) buf + write_sz, count - write_sz);
|
|
if (ret < 0) {
|
|
if (errno == EINTR)
|
|
continue;
|
|
PLOGE("write");
|
|
return ret;
|
|
}
|
|
write_sz += ret;
|
|
} while (write_sz != count && ret != 0);
|
|
if (write_sz != count) {
|
|
PLOGE("write (%zu != %zu)", count, write_sz);
|
|
}
|
|
return write_sz;
|
|
}
|
|
|
|
// Read error other than EOF
|
|
ssize_t xread(int fd, void *buf, size_t count) {
|
|
int ret = read(fd, buf, count);
|
|
if (ret < 0) {
|
|
PLOGE("read");
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
// Read exact same size as count
|
|
ssize_t xxread(int fd, void *buf, size_t count) {
|
|
size_t read_sz = 0;
|
|
ssize_t ret;
|
|
do {
|
|
ret = read(fd, (byte *) buf + read_sz, count - read_sz);
|
|
if (ret < 0) {
|
|
if (errno == EINTR)
|
|
continue;
|
|
PLOGE("read");
|
|
return ret;
|
|
}
|
|
read_sz += ret;
|
|
} while (read_sz != count && ret != 0);
|
|
if (read_sz != count) {
|
|
PLOGE("read (%zu != %zu)", count, read_sz);
|
|
}
|
|
return read_sz;
|
|
}
|
|
|
|
off_t xlseek(int fd, off_t offset, int whence) {
|
|
off_t ret = lseek(fd, offset, whence);
|
|
if (ret < 0) {
|
|
PLOGE("lseek");
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int xpipe2(int pipefd[2], int flags) {
|
|
int ret = pipe2(pipefd, flags);
|
|
if (ret < 0) {
|
|
PLOGE("pipe2");
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int xsetns(int fd, int nstype) {
|
|
int ret = setns(fd, nstype);
|
|
if (ret < 0) {
|
|
PLOGE("setns");
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int xunshare(int flags) {
|
|
int ret = unshare(flags);
|
|
if (ret < 0) {
|
|
PLOGE("unshare");
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
DIR *xopendir(const char *name) {
|
|
DIR *d = opendir(name);
|
|
if (d == nullptr) {
|
|
PLOGE("opendir: %s", name);
|
|
}
|
|
return d;
|
|
}
|
|
|
|
DIR *xfdopendir(int fd) {
|
|
DIR *d = fdopendir(fd);
|
|
if (d == nullptr) {
|
|
PLOGE("fdopendir");
|
|
}
|
|
return d;
|
|
}
|
|
|
|
struct dirent *xreaddir(DIR *dirp) {
|
|
errno = 0;
|
|
for (dirent *e;;) {
|
|
e = readdir(dirp);
|
|
if (e == nullptr) {
|
|
if (errno)
|
|
PLOGE("readdir");
|
|
return nullptr;
|
|
} else if (e->d_name == "."sv || e->d_name == ".."sv) {
|
|
// Filter . and .. for users
|
|
continue;
|
|
}
|
|
return e;
|
|
}
|
|
}
|
|
|
|
pid_t xsetsid() {
|
|
pid_t pid = setsid();
|
|
if (pid < 0) {
|
|
PLOGE("setsid");
|
|
}
|
|
return pid;
|
|
}
|
|
|
|
int xsocket(int domain, int type, int protocol) {
|
|
int fd = socket(domain, type, protocol);
|
|
if (fd < 0) {
|
|
PLOGE("socket");
|
|
}
|
|
return fd;
|
|
}
|
|
|
|
int xbind(int sockfd, const struct sockaddr *addr, socklen_t addrlen) {
|
|
int ret = bind(sockfd, addr, addrlen);
|
|
if (ret < 0) {
|
|
PLOGE("bind");
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int xlisten(int sockfd, int backlog) {
|
|
int ret = listen(sockfd, backlog);
|
|
if (ret < 0) {
|
|
PLOGE("listen");
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int xaccept4(int sockfd, struct sockaddr *addr, socklen_t *addrlen, int flags) {
|
|
int fd = accept4(sockfd, addr, addrlen, flags);
|
|
if (fd < 0) {
|
|
PLOGE("accept4");
|
|
}
|
|
return fd;
|
|
}
|
|
|
|
void *xmalloc(size_t size) {
|
|
void *p = malloc(size);
|
|
if (p == nullptr) {
|
|
PLOGE("malloc");
|
|
}
|
|
return p;
|
|
}
|
|
|
|
void *xcalloc(size_t nmemb, size_t size) {
|
|
void *p = calloc(nmemb, size);
|
|
if (p == nullptr) {
|
|
PLOGE("calloc");
|
|
}
|
|
return p;
|
|
}
|
|
|
|
void *xrealloc(void *ptr, size_t size) {
|
|
void *p = realloc(ptr, size);
|
|
if (p == nullptr) {
|
|
PLOGE("realloc");
|
|
}
|
|
return p;
|
|
}
|
|
|
|
ssize_t xsendmsg(int sockfd, const struct msghdr *msg, int flags) {
|
|
int sent = sendmsg(sockfd, msg, flags);
|
|
if (sent < 0) {
|
|
PLOGE("sendmsg");
|
|
}
|
|
return sent;
|
|
}
|
|
|
|
ssize_t xrecvmsg(int sockfd, struct msghdr *msg, int flags) {
|
|
int rec = recvmsg(sockfd, msg, flags);
|
|
if (rec < 0) {
|
|
PLOGE("recvmsg");
|
|
}
|
|
return rec;
|
|
}
|
|
|
|
int xpthread_create(pthread_t *thread, const pthread_attr_t *attr,
|
|
void *(*start_routine) (void *), void *arg) {
|
|
errno = pthread_create(thread, attr, start_routine, arg);
|
|
if (errno) {
|
|
PLOGE("pthread_create");
|
|
}
|
|
return errno;
|
|
}
|
|
|
|
int xaccess(const char *path, int mode) {
|
|
int ret = access(path, mode);
|
|
if (ret < 0) {
|
|
PLOGE("access %s", path);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int xstat(const char *pathname, struct stat *buf) {
|
|
int ret = stat(pathname, buf);
|
|
if (ret < 0) {
|
|
PLOGE("stat %s", pathname);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int xlstat(const char *pathname, struct stat *buf) {
|
|
int ret = lstat(pathname, buf);
|
|
if (ret < 0) {
|
|
PLOGE("lstat %s", pathname);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int xfstat(int fd, struct stat *buf) {
|
|
int ret = fstat(fd, buf);
|
|
if (ret < 0) {
|
|
PLOGE("fstat %d", fd);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int xfstatat(int dirfd, const char *pathname, struct stat *buf, int flags) {
|
|
int ret = fstatat(dirfd, pathname, buf, flags);
|
|
if (ret < 0) {
|
|
PLOGE("fstatat %s", pathname);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int xdup(int fd) {
|
|
int ret = dup(fd);
|
|
if (ret < 0) {
|
|
PLOGE("dup");
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int xdup2(int oldfd, int newfd) {
|
|
int ret = dup2(oldfd, newfd);
|
|
if (ret < 0) {
|
|
PLOGE("dup2");
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int xdup3(int oldfd, int newfd, int flags) {
|
|
int ret = dup3(oldfd, newfd, flags);
|
|
if (ret < 0) {
|
|
PLOGE("dup3");
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
ssize_t xreadlink(const char *pathname, char *buf, size_t bufsiz) {
|
|
ssize_t ret = readlink(pathname, buf, bufsiz);
|
|
if (ret < 0) {
|
|
PLOGE("readlink %s", pathname);
|
|
} else {
|
|
buf[ret] = '\0';
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
ssize_t xreadlinkat(int dirfd, const char *pathname, char *buf, size_t bufsiz) {
|
|
// readlinkat() may fail on x86 platform, returning random value
|
|
// instead of number of bytes placed in buf (length of link)
|
|
#if defined(__i386__) || defined(__x86_64__)
|
|
memset(buf, 0, bufsiz);
|
|
ssize_t ret = readlinkat(dirfd, pathname, buf, bufsiz);
|
|
if (ret < 0) {
|
|
PLOGE("readlinkat %s", pathname);
|
|
}
|
|
return ret;
|
|
#else
|
|
ssize_t ret = readlinkat(dirfd, pathname, buf, bufsiz);
|
|
if (ret < 0) {
|
|
PLOGE("readlinkat %s", pathname);
|
|
} else {
|
|
buf[ret] = '\0';
|
|
}
|
|
return ret;
|
|
#endif
|
|
}
|
|
|
|
int xfaccessat(int dirfd, const char *pathname) {
|
|
int ret = faccessat(dirfd, pathname, F_OK, 0);
|
|
if (ret < 0) {
|
|
PLOGE("faccessat %s", pathname);
|
|
}
|
|
#if defined(__i386__) || defined(__x86_64__)
|
|
if (ret > 0 && errno == 0) {
|
|
LOGD("faccessat success but ret is %d\n", ret);
|
|
ret = 0;
|
|
}
|
|
#endif
|
|
return ret;
|
|
}
|
|
|
|
int xsymlink(const char *target, const char *linkpath) {
|
|
int ret = symlink(target, linkpath);
|
|
if (ret < 0) {
|
|
PLOGE("symlink %s->%s", target, linkpath);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int xsymlinkat(const char *target, int newdirfd, const char *linkpath) {
|
|
int ret = symlinkat(target, newdirfd, linkpath);
|
|
if (ret < 0) {
|
|
PLOGE("symlinkat %s->%s", target, linkpath);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int xlinkat(int olddirfd, const char *oldpath, int newdirfd, const char *newpath, int flags) {
|
|
int ret = linkat(olddirfd, oldpath, newdirfd, newpath, flags);
|
|
if (ret < 0) {
|
|
PLOGE("linkat %s->%s", oldpath, newpath);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int xmount(const char *source, const char *target,
|
|
const char *filesystemtype, unsigned long mountflags,
|
|
const void *data) {
|
|
int ret = mount(source, target, filesystemtype, mountflags, data);
|
|
if (ret < 0) {
|
|
PLOGE("mount %s->%s", source, target);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int xumount(const char *target) {
|
|
int ret = umount(target);
|
|
if (ret < 0) {
|
|
PLOGE("umount %s", target);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int xumount2(const char *target, int flags) {
|
|
int ret = umount2(target, flags);
|
|
if (ret < 0) {
|
|
PLOGE("umount2 %s", target);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int xrename(const char *oldpath, const char *newpath) {
|
|
int ret = rename(oldpath, newpath);
|
|
if (ret < 0) {
|
|
PLOGE("rename %s->%s", oldpath, newpath);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int xmkdir(const char *pathname, mode_t mode) {
|
|
int ret = mkdir(pathname, mode);
|
|
if (ret < 0 && errno != EEXIST) {
|
|
PLOGE("mkdir %s %u", pathname, mode);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int xmkdirs(const char *pathname, mode_t mode) {
|
|
int ret = mkdirs(pathname, mode);
|
|
if (ret < 0) {
|
|
PLOGE("mkdirs %s", pathname);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int xmkdirat(int dirfd, const char *pathname, mode_t mode) {
|
|
int ret = mkdirat(dirfd, pathname, mode);
|
|
if (ret < 0 && errno != EEXIST) {
|
|
PLOGE("mkdirat %s %u", pathname, mode);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
void *xmmap(void *addr, size_t length, int prot, int flags,
|
|
int fd, off_t offset) {
|
|
void *ret = mmap(addr, length, prot, flags, fd, offset);
|
|
if (ret == MAP_FAILED) {
|
|
PLOGE("mmap");
|
|
return nullptr;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
ssize_t xsendfile(int out_fd, int in_fd, off_t *offset, size_t count) {
|
|
ssize_t ret = sendfile(out_fd, in_fd, offset, count);
|
|
if (ret < 0) {
|
|
PLOGE("sendfile");
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
pid_t xfork() {
|
|
int ret = fork();
|
|
if (ret < 0) {
|
|
PLOGE("fork");
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int xpoll(struct pollfd *fds, nfds_t nfds, int timeout) {
|
|
int ret = poll(fds, nfds, timeout);
|
|
if (ret < 0) {
|
|
PLOGE("poll");
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int xinotify_init1(int flags) {
|
|
int ret = inotify_init1(flags);
|
|
if (ret < 0) {
|
|
PLOGE("inotify_init1");
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
char *xrealpath(const char *path, char *resolved_path) {
|
|
char buf[PATH_MAX];
|
|
char *ret = realpath(path, buf);
|
|
if (ret == nullptr) {
|
|
PLOGE("xrealpath");
|
|
} else {
|
|
strcpy(resolved_path, buf);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int xmknod(const char *pathname, mode_t mode, dev_t dev) {
|
|
int ret = mknod(pathname, mode, dev);
|
|
if (ret < 0) {
|
|
PLOGE("mknod");
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
long xptrace(int request, pid_t pid, void *addr, void *data) {
|
|
long ret = ptrace(request, pid, addr, data);
|
|
if (ret < 0)
|
|
PLOGE("ptrace %d", pid);
|
|
return ret;
|
|
}
|