mirror of
https://github.com/topjohnwu/Magisk.git
synced 2024-11-24 18:45:28 +00:00
481 lines
10 KiB
C++
481 lines
10 KiB
C++
#include <sched.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <errno.h>
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#include <pthread.h>
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#include <sys/socket.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/mount.h>
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#include <sys/mman.h>
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#include <sys/sendfile.h>
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#include <sys/ptrace.h>
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#include <utils.hpp>
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using namespace std;
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FILE *xfopen(const char *pathname, const char *mode) {
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FILE *fp = fopen(pathname, mode);
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if (fp == nullptr) {
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PLOGE("fopen: %s", pathname);
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}
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return fp;
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}
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FILE *xfdopen(int fd, const char *mode) {
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FILE *fp = fdopen(fd, mode);
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if (fp == nullptr) {
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PLOGE("fopen");
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}
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return fp;
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}
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int xopen(const char *pathname, int flags) {
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int fd = open(pathname, flags);
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if (fd < 0) {
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PLOGE("open: %s", pathname);
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}
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return fd;
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}
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int xopen(const char *pathname, int flags, mode_t mode) {
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int fd = open(pathname, flags, mode);
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if (fd < 0) {
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PLOGE("open: %s", pathname);
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}
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return fd;
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}
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int xopenat(int dirfd, const char *pathname, int flags) {
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int fd = openat(dirfd, pathname, flags);
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if (fd < 0) {
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PLOGE("openat: %s", pathname);
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}
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return fd;
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}
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int xopenat(int dirfd, const char *pathname, int flags, mode_t mode) {
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int fd = openat(dirfd, pathname, flags, mode);
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if (fd < 0) {
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PLOGE("openat: %s", pathname);
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}
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return fd;
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}
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ssize_t xwrite(int fd, const void *buf, size_t count) {
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int ret = write(fd, buf, count);
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if (count != ret) {
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PLOGE("write");
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}
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return ret;
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}
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// Read error other than EOF
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ssize_t xread(int fd, void *buf, size_t count) {
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int ret = read(fd, buf, count);
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if (ret < 0) {
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PLOGE("read");
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}
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return ret;
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}
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// Read exact same size as count
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ssize_t xxread(int fd, void *buf, size_t count) {
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int ret = read(fd, buf, count);
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if (count != ret) {
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PLOGE("read (%zu != %d)", count, ret);
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}
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return ret;
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}
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int xpipe2(int pipefd[2], int flags) {
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int ret = pipe2(pipefd, flags);
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if (ret < 0) {
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PLOGE("pipe2");
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}
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return ret;
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}
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int xsetns(int fd, int nstype) {
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int ret = setns(fd, nstype);
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if (ret < 0) {
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PLOGE("setns");
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}
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return ret;
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}
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int xunshare(int flags) {
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int ret = unshare(flags);
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if (ret < 0) {
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PLOGE("unshare");
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}
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return ret;
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}
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DIR *xopendir(const char *name) {
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DIR *d = opendir(name);
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if (d == nullptr) {
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PLOGE("opendir: %s", name);
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}
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return d;
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}
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DIR *xfdopendir(int fd) {
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DIR *d = fdopendir(fd);
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if (d == nullptr) {
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PLOGE("fdopendir");
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}
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return d;
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}
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struct dirent *xreaddir(DIR *dirp) {
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errno = 0;
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for (dirent *e;;) {
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e = readdir(dirp);
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if (e == nullptr) {
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if (errno)
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PLOGE("readdir");
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return nullptr;
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} else if (e->d_name == "."sv || e->d_name == ".."sv) {
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// Filter . and .. for users
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continue;
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}
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return e;
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}
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}
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pid_t xsetsid() {
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pid_t pid = setsid();
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if (pid < 0) {
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PLOGE("setsid");
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}
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return pid;
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}
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int xsocket(int domain, int type, int protocol) {
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int fd = socket(domain, type, protocol);
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if (fd < 0) {
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PLOGE("socket");
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}
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return fd;
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}
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int xbind(int sockfd, const struct sockaddr *addr, socklen_t addrlen) {
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int ret = bind(sockfd, addr, addrlen);
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if (ret < 0) {
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PLOGE("bind");
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}
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return ret;
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}
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int xlisten(int sockfd, int backlog) {
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int ret = listen(sockfd, backlog);
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if (ret < 0) {
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PLOGE("listen");
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}
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return ret;
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}
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static int accept4_compat(int sockfd, struct sockaddr *addr, socklen_t *addrlen, int flags) {
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int fd = accept(sockfd, addr, addrlen);
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if (fd < 0) {
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PLOGE("accept");
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} else {
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if (flags & SOCK_CLOEXEC)
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fcntl(fd, F_SETFD, FD_CLOEXEC);
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if (flags & SOCK_NONBLOCK) {
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int i = fcntl(fd, F_GETFL);
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fcntl(fd, F_SETFL, i | O_NONBLOCK);
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}
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}
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return fd;
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}
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int xaccept4(int sockfd, struct sockaddr *addr, socklen_t *addrlen, int flags) {
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int fd = accept4(sockfd, addr, addrlen, flags);
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if (fd < 0) {
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if (errno == ENOSYS)
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return accept4_compat(sockfd, addr, addrlen, flags);
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PLOGE("accept4");
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}
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return fd;
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}
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void *xmalloc(size_t size) {
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void *p = malloc(size);
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if (p == nullptr) {
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PLOGE("malloc");
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}
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return p;
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}
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void *xcalloc(size_t nmemb, size_t size) {
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void *p = calloc(nmemb, size);
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if (p == nullptr) {
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PLOGE("calloc");
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}
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return p;
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}
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void *xrealloc(void *ptr, size_t size) {
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void *p = realloc(ptr, size);
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if (p == nullptr) {
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PLOGE("realloc");
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}
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return p;
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}
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ssize_t xsendmsg(int sockfd, const struct msghdr *msg, int flags) {
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int sent = sendmsg(sockfd, msg, flags);
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if (sent < 0) {
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PLOGE("sendmsg");
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}
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return sent;
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}
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ssize_t xrecvmsg(int sockfd, struct msghdr *msg, int flags) {
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int rec = recvmsg(sockfd, msg, flags);
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if (rec < 0) {
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PLOGE("recvmsg");
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}
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return rec;
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}
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int xpthread_create(pthread_t *thread, const pthread_attr_t *attr,
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void *(*start_routine) (void *), void *arg) {
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errno = pthread_create(thread, attr, start_routine, arg);
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if (errno) {
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PLOGE("pthread_create");
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}
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return errno;
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}
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int xstat(const char *pathname, struct stat *buf) {
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int ret = stat(pathname, buf);
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if (ret < 0) {
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PLOGE("stat %s", pathname);
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}
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return ret;
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}
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int xlstat(const char *pathname, struct stat *buf) {
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int ret = lstat(pathname, buf);
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if (ret < 0) {
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PLOGE("lstat %s", pathname);
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}
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return ret;
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}
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int xfstat(int fd, struct stat *buf) {
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int ret = fstat(fd, buf);
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if (ret < 0) {
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PLOGE("fstat %d", fd);
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}
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return ret;
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}
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int xdup(int fd) {
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int ret = dup(fd);
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if (ret < 0) {
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PLOGE("dup");
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}
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return ret;
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}
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int xdup2(int oldfd, int newfd) {
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int ret = dup2(oldfd, newfd);
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if (ret < 0) {
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PLOGE("dup2");
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}
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return ret;
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}
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int xdup3(int oldfd, int newfd, int flags) {
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int ret = dup3(oldfd, newfd, flags);
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if (ret < 0) {
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PLOGE("dup3");
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}
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return ret;
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}
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ssize_t xreadlink(const char *pathname, char *buf, size_t bufsiz) {
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ssize_t ret = readlink(pathname, buf, bufsiz);
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if (ret < 0) {
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PLOGE("readlink %s", pathname);
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} else {
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buf[ret] = '\0';
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}
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return ret;
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}
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ssize_t xreadlinkat(int dirfd, const char *pathname, char *buf, size_t bufsiz) {
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// readlinkat() may fail on x86 platform, returning random value
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// instead of number of bytes placed in buf (length of link)
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#if defined(__i386__) || defined(__x86_64__)
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memset(buf, 0, bufsiz);
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ssize_t ret = readlinkat(dirfd, pathname, buf, bufsiz);
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if (ret < 0) {
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PLOGE("readlinkat %s", pathname);
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}
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return ret;
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#else
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ssize_t ret = readlinkat(dirfd, pathname, buf, bufsiz);
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if (ret < 0) {
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PLOGE("readlinkat %s", pathname);
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} else {
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buf[ret] = '\0';
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}
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return ret;
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#endif
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}
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int xsymlink(const char *target, const char *linkpath) {
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int ret = symlink(target, linkpath);
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if (ret < 0) {
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PLOGE("symlink %s->%s", target, linkpath);
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}
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return ret;
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}
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int xsymlinkat(const char *target, int newdirfd, const char *linkpath) {
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int ret = symlinkat(target, newdirfd, linkpath);
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if (ret < 0) {
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PLOGE("symlinkat %s->%s", target, linkpath);
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}
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return ret;
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}
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int xlinkat(int olddirfd, const char *oldpath, int newdirfd, const char *newpath, int flags) {
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int ret = linkat(olddirfd, oldpath, newdirfd, newpath, flags);
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if (ret < 0) {
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PLOGE("linkat %s->%s", oldpath, newpath);
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}
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return ret;
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}
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int xmount(const char *source, const char *target,
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const char *filesystemtype, unsigned long mountflags,
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const void *data) {
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int ret = mount(source, target, filesystemtype, mountflags, data);
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if (ret < 0) {
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PLOGE("mount %s->%s", source, target);
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}
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return ret;
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}
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int xumount(const char *target) {
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int ret = umount(target);
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if (ret < 0) {
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PLOGE("umount %s", target);
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}
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return ret;
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}
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int xumount2(const char *target, int flags) {
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int ret = umount2(target, flags);
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if (ret < 0) {
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PLOGE("umount2 %s", target);
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}
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return ret;
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}
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int xrename(const char *oldpath, const char *newpath) {
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int ret = rename(oldpath, newpath);
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if (ret < 0) {
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PLOGE("rename %s->%s", oldpath, newpath);
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}
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return ret;
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}
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int xmkdir(const char *pathname, mode_t mode) {
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int ret = mkdir(pathname, mode);
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if (ret < 0 && errno != EEXIST) {
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PLOGE("mkdir %s %u", pathname, mode);
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}
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return ret;
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}
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int xmkdirs(const char *pathname, mode_t mode) {
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int ret = mkdirs(pathname, mode);
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if (ret < 0) {
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PLOGE("mkdirs %s", pathname);
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}
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return ret;
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}
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int xmkdirat(int dirfd, const char *pathname, mode_t mode) {
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int ret = mkdirat(dirfd, pathname, mode);
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if (ret < 0 && errno != EEXIST) {
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PLOGE("mkdirat %s %u", pathname, mode);
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}
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return ret;
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}
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void *xmmap(void *addr, size_t length, int prot, int flags,
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int fd, off_t offset) {
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void *ret = mmap(addr, length, prot, flags, fd, offset);
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if (ret == MAP_FAILED) {
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PLOGE("mmap");
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}
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return ret;
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}
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ssize_t xsendfile(int out_fd, int in_fd, off_t *offset, size_t count) {
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ssize_t ret = sendfile(out_fd, in_fd, offset, count);
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if (count != ret) {
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PLOGE("sendfile");
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}
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return ret;
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}
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pid_t xfork() {
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int ret = fork();
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if (ret < 0) {
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PLOGE("fork");
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}
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return ret;
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}
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int xpoll(struct pollfd *fds, nfds_t nfds, int timeout) {
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int ret = poll(fds, nfds, timeout);
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if (ret < 0) {
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PLOGE("poll");
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}
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return ret;
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}
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int xinotify_init1(int flags) {
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int ret = inotify_init1(flags);
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if (ret < 0) {
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PLOGE("inotify_init1");
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}
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return ret;
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}
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char *xrealpath(const char *path, char *resolved_path) {
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char buf[PATH_MAX];
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char *ret = realpath(path, buf);
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if (ret == nullptr) {
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PLOGE("xrealpath");
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} else {
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strcpy(resolved_path, buf);
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}
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return ret;
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}
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int xmknod(const char *pathname, mode_t mode, dev_t dev) {
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int ret = mknod(pathname, mode, dev);
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if (ret < 0) {
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PLOGE("mknod");
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}
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return ret;
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}
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long xptrace(int request, pid_t pid, void *addr, void *data) {
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long ret = ptrace(request, pid, addr, data);
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if (ret < 0)
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PLOGE("ptrace %d", pid);
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return ret;
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}
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