99 lines
2.7 KiB
C
99 lines
2.7 KiB
C
/*
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@Author : ouadimjamal@gmail.com
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@date : December 2015
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation. No representations are made about the suitability of this
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software for any purpose. It is provided "as is" without express or
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implied warranty.
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*/
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#ifndef H_PMPARSER
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#define H_PMPARSER
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <linux/limits.h>
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//maximum line length in a procmaps file
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#define PROCMAPS_LINE_MAX_LENGTH (PATH_MAX + 100)
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/**
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* procmaps_struct
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* @desc hold all the information about an area in the process's VM
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*/
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typedef struct procmaps_struct{
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void* addr_start; //< start address of the area
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void* addr_end; //< end address
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unsigned long length; //< size of the range
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char perm[5]; //< permissions rwxp
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short is_r; //< rewrote of perm with short flags
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short is_w;
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short is_x;
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short is_p;
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long offset; //< offset
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char dev[12]; //< dev major:minor
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int inode; //< inode of the file that backs the area
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char pathname[600]; //< the path of the file that backs the area
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//chained list
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struct procmaps_struct* next; //<handler of the chinaed list
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} procmaps_struct;
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/**
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* procmaps_iterator
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* @desc holds iterating information
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*/
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typedef struct procmaps_iterator{
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procmaps_struct* head;
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procmaps_struct* current;
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} procmaps_iterator;
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/**
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* pmparser_parse
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* @param pid the process id whose memory map to be parser. the current process if pid<0
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* @return an iterator over all the nodes
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*/
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procmaps_iterator* pmparser_parse(int pid);
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/**
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* pmparser_next
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* @description move between areas
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* @param p_procmaps_it the iterator to move on step in the chained list
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* @return a procmaps structure filled with information about this VM area
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*/
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procmaps_struct* pmparser_next(procmaps_iterator* p_procmaps_it);
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/**
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* pmparser_free
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* @description should be called at the end to free the resources
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* @param p_procmaps_it the iterator structure returned by pmparser_parse
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*/
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void pmparser_free(procmaps_iterator* p_procmaps_it);
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/**
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* _pmparser_split_line
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* @description internal usage
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*/
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void _pmparser_split_line(char*buf,char*addr1,char*addr2,char*perm, char* offset, char* device,char*inode,char* pathname);
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/**
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* pmparser_print
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* @param map the head of the list
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* @order the order of the area to print, -1 to print everything
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*/
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void pmparser_print(procmaps_struct* map,int order);
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#endif |