asmsh/mmap_parse.h

/* Copyright Yann Weber <asmsh@yannweb.net>
   This file is part of asmsh.

   asmsh is free software: you can redistribute it and/or modify it under the
   terms of the GNU General Public License as published by the Free Software
   Foundation, either version 3 of the License, or any later version.
   
   asmsh is distributed in the hope that it will be useful, but WITHOUT ANY
   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
   FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
   details.
   
   You should have received a copy of the GNU General Public License along
   with asmsh. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef ASMSH_MMAP_PARSE_H
#define ASMSH_MMAP_PARSE_H

#include "config.h"

#include <sys/mman.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <fcntl.h>
#include <limits.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>


extern int errno;

typedef struct child_mmap_s child_mmap_t;
typedef struct child_mmap_list child_mmap_l;

struct child_mmap_s
{
	char *start;
	char *stop;
	int perm;
	size_t offset;
	dev_t device;
	ino_t inode;
	char *pathname;
};

struct child_mmap_list
{
	child_mmap_t *maps;
	size_t size;
};

/** Initialize a child_mmap_l */
void child_mmap_init(child_mmap_l *maps);

/** Parse /proc/[pid]/map file
 *
 * @param pid_t The pid of the child process we ptrace attached
 * @param child_mmap_l A child map that will be filled with child's mmaps
 * @return 0 if no error else -1
 */
int child_mmap_get(pid_t child_pid, child_mmap_l *maps);

/** Parse an opened /proc/[pid]/map file
 *
 * @param int opened file descriptor
 * @param child_mmap_l A child map that will be filled with child's mmaps
 * @return 0 if no error else -1
 */
int child_mmap_get_fd(int maps_fd, child_mmap_l *maps);

void child_mmap_free(child_mmap_l *maps);

int child_mmap_parseline(char *line, child_mmap_t *map);

int _child_mmap_alloc(size_t curmap, child_mmap_l *maps);

#endif