Esempi in C++ (Cpp) per __android_get_control_from_env

Esempio n. 1

File: android_get_control_file.cpp Progetto: MoKee/android_system_core

int android_get_control_file(const char* path) {
    int fd = __android_get_control_from_env(ANDROID_FILE_ENV_PREFIX, path);

#if defined(__linux__)
    // Find file path from /proc and make sure it is correct
    char *proc = NULL;
    if (asprintf(&proc, "/proc/self/fd/%d", fd) < 0) return -1;
    if (!proc) return -1;

    size_t len = strlen(path);
    // readlink() does not guarantee a nul byte, len+2 so we catch truncation.
    char *buf = static_cast<char *>(calloc(1, len + 2));
    if (!buf) {
        free(proc);
        return -1;
    }
    ssize_t ret = TEMP_FAILURE_RETRY(readlink(proc, buf, len + 1));
    free(proc);
    int cmp = (len != static_cast<size_t>(ret)) || strcmp(buf, path);
    free(buf);
    if (ret < 0) return -1;
    if (cmp != 0) return -1;
    // It is what we think it is
#endif

    return fd;
}

Esempio n. 2

File: sockets_unix.cpp Progetto: BenzoRoms/system_core

int android_get_control_socket(const char* name) {
    int fd = __android_get_control_from_env(ANDROID_SOCKET_ENV_PREFIX, name);

    if (fd < 0) return fd;

    // Compare to UNIX domain socket name, must match!
    struct sockaddr_un addr;
    socklen_t addrlen = sizeof(addr);
    int ret = TEMP_FAILURE_RETRY(getsockname(fd, (struct sockaddr *)&addr, &addrlen));
    if (ret < 0) return -1;
    char *path = NULL;
    if (asprintf(&path, ANDROID_SOCKET_DIR "/%s", name) < 0) return -1;
    if (!path) return -1;
    int cmp = strcmp(addr.sun_path, path);
    free(path);
    if (cmp != 0) return -1;

    // It is what we think it is
    return fd;
}