vm/port/src/modules/unix/linux/native_modules_procmap.c

/*
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

#include <sys/types.h>
#include <limits.h>
#include <stdio.h>
#include "open/platform_types.h"


FILE* port_modules_procmap_open(pid_t pid)
{
    char buf[64];
    sprintf(buf, "/proc/%d/maps", pid);

    return fopen(buf, "rt");
}


int port_modules_procmap_readline(FILE* map,
            POINTER_SIZE_INT* pstart, POINTER_SIZE_INT* pend,
            char* pacc_r, char* pacc_x, char* filename)
{
    char buf[PATH_MAX];

    if (!map || feof(map))
        return -1;

    if (!fgets(buf, sizeof(buf), map))
        return -1;

    return sscanf(buf, "%" PI_FMT "x-%" PI_FMT "x %c%*c%c%*c %*" PI_FMT "x %*02x:%*02x %*u %s",
                    pstart, pend, pacc_r, pacc_x, filename);
}