pre strip down

1 files changed, 196 insertions, 0 deletions

diff --git a/src/pmparser.cpp b/src/pmparser.cpp
new file mode 100644
index 0000000..e7be9ba
--- /dev/null
+++ b/src/pmparser.cpp
@@ -0,0 +1,196 @@
+/*
+ @Author	: ouadimjamal@gmail.com
+ @date		: December 2015
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.  No representations are made about the suitability of this
+software for any purpose.  It is provided "as is" without express or
+implied warranty.
+*/
+
+#include "pmparser.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <plugin.h>
+
+
+
+
+procmaps_iterator* pmparser_parse(csnd::Csound* csound, int pid){
+	procmaps_iterator* maps_it = (procmaps_iterator*) csound->malloc(sizeof(procmaps_iterator));
+	char maps_path[500];
+	if(pid>=0 ){
+		sprintf(maps_path,"/proc/%d/maps",pid);
+	}else{
+		sprintf(maps_path,"/proc/self/maps");
+	}
+	FILE* file=fopen(maps_path,"r");
+	if(!file){
+		fprintf(stderr,"pmparser : cannot open the memory maps, %s\n",strerror(errno));
+		return NULL;
+	}
+	int ind=0;char buf[PROCMAPS_LINE_MAX_LENGTH];
+	int c;
+	procmaps_struct* list_maps=NULL;
+	procmaps_struct* tmp;
+	procmaps_struct* current_node=list_maps;
+	char addr1[20],addr2[20], perm[8], offset[20], dev[10],inode[30],pathname[PATH_MAX];
+	while( !feof(file) ){
+		fgets(buf,PROCMAPS_LINE_MAX_LENGTH,file);
+		//allocate a node
+		tmp=(procmaps_struct*)csound->malloc(sizeof(procmaps_struct));
+		//fill the node
+		_pmparser_split_line(buf,addr1,addr2,perm,offset, dev,inode,pathname);
+		//printf("#%s",buf);
+		//printf("%s-%s %s %s %s %s\t%s\n",addr1,addr2,perm,offset,dev,inode,pathname);
+		//addr_start & addr_end
+		unsigned long l_addr_start;
+		sscanf(addr1,"%lx",(long unsigned *)&tmp->addr_start );
+		sscanf(addr2,"%lx",(long unsigned *)&tmp->addr_end );
+		//size
+		tmp->length=(unsigned long)(tmp->addr_end-tmp->addr_start);
+		//perm
+		strcpy(tmp->perm,perm);
+		tmp->is_r=(perm[0]=='r');
+		tmp->is_w=(perm[1]=='w');
+		tmp->is_x=(perm[2]=='x');
+		tmp->is_p=(perm[3]=='p');
+
+		//offset
+		sscanf(offset,"%lx",&tmp->offset );
+		//device
+		strcpy(tmp->dev,dev);
+		//inode
+		tmp->inode=atoi(inode);
+		//pathname
+		strcpy(tmp->pathname,pathname);
+		tmp->next=NULL;
+		//attach the node
+		if(ind==0){
+			list_maps=tmp;
+			list_maps->next=NULL;
+			current_node=list_maps;
+		}
+		current_node->next=tmp;
+		current_node=tmp;
+		ind++;
+		//printf("%s",buf);
+	}
+
+	//close file
+	fclose(file);
+
+
+	//g_last_head=list_maps;
+	maps_it->head = list_maps;
+	maps_it->current =  list_maps;
+	return maps_it;
+}
+
+
+procmaps_struct* pmparser_next(procmaps_iterator* p_procmaps_it){
+	if(p_procmaps_it->current == NULL)
+		return NULL;
+	procmaps_struct* p_current = p_procmaps_it->current;
+	p_procmaps_it->current = p_procmaps_it->current->next;
+	return p_current;
+	/*
+	if(g_current==NULL){
+		g_current=g_last_head;
+	}else
+		g_current=g_current->next;
+
+	return g_current;
+	*/
+}
+
+
+
+void pmparser_free(csnd::Csound* csound, procmaps_iterator* p_procmaps_it){
+	procmaps_struct* maps_list = p_procmaps_it->head;
+	if(maps_list==NULL) return ;
+	procmaps_struct* act=maps_list;
+	procmaps_struct* nxt=act->next;
+	while(act!=NULL){
+		csound->free(act);
+		act=nxt;
+		if(nxt!=NULL)
+			nxt=nxt->next;
+	}
+
+}
+
+
+void _pmparser_split_line(
+		char*buf,char*addr1,char*addr2,
+		char*perm,char* offset,char* device,char*inode,
+		char* pathname){
+	//
+	int orig=0;
+	int i=0;
+	//addr1
+	while(buf[i]!='-'){
+		addr1[i-orig]=buf[i];
+		i++;
+	}
+	addr1[i]='\0';
+	i++;
+	//addr2
+	orig=i;
+	while(buf[i]!='\t' && buf[i]!=' '){
+		addr2[i-orig]=buf[i];
+		i++;
+	}
+	addr2[i-orig]='\0';
+
+	//perm
+	while(buf[i]=='\t' || buf[i]==' ')
+		i++;
+	orig=i;
+	while(buf[i]!='\t' && buf[i]!=' '){
+		perm[i-orig]=buf[i];
+		i++;
+	}
+	perm[i-orig]='\0';
+	//offset
+	while(buf[i]=='\t' || buf[i]==' ')
+		i++;
+	orig=i;
+	while(buf[i]!='\t' && buf[i]!=' '){
+		offset[i-orig]=buf[i];
+		i++;
+	}
+	offset[i-orig]='\0';
+	//dev
+	while(buf[i]=='\t' || buf[i]==' ')
+		i++;
+	orig=i;
+	while(buf[i]!='\t' && buf[i]!=' '){
+		device[i-orig]=buf[i];
+		i++;
+	}
+	device[i-orig]='\0';
+	//inode
+	while(buf[i]=='\t' || buf[i]==' ')
+		i++;
+	orig=i;
+	while(buf[i]!='\t' && buf[i]!=' '){
+		inode[i-orig]=buf[i];
+		i++;
+	}
+	inode[i-orig]='\0';
+	//pathname
+	pathname[0]='\0';
+	while(buf[i]=='\t' || buf[i]==' ')
+		i++;
+	orig=i;
+	while(buf[i]!='\t' && buf[i]!=' ' && buf[i]!='\n'){
+		pathname[i-orig]=buf[i];
+		i++;
+	}
+	pathname[i-orig]='\0';
+
+}