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rce.c
executable file
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rce.c
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/*
*
* Post memory corruption memory analyzer
*
*
*
* Copyright 2011 Toucan System SARL
*
* Licensed 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 "prototypes.h"
/*
* Execute an external command
*/
int exec_cmd(char *command,int pid){
char cmd[1024];
FILE *output;
int result;
memset(cmd,0x00,1024);
snprintf(cmd,1024,command,pid);
output=popen(cmd, "r");
fscanf(output,"%d",&result);
pclose(output);
return result;
}
/*
* Execute an external command, return stdout
* Don't forget to close after use
*/
FILE* exec_cmd_stdout(char *command,int pid){
char cmd[1024];
FILE *output;
memset(cmd,0x00,1024);
sprintf(cmd,command,pid);
output=popen(cmd, "r");
return output;
}
/*
* Check we have been installed properly,
* meaning that all the external tools
* we may need are present.
* We need the following tools on our path:
*
* [tool] [package]
* readelf : binutils
* execstack : execstack
* gcore : gdb
*/
int check_install(){
char *app_name[]={"readelf","gcore","execstack"};
char cmd[1024];
int result;
FILE *output;
int i;
for(i=0;i<3;i++){
memset(cmd,0x00,1024);
sprintf(cmd,"which %s 2>/dev/null |wc -l",app_name[i]);
output=popen(cmd, "r");
fscanf(output,"%d",&result);
pclose(output);
if(!result){
printf(" [!] No binary %s found in your path !!\n"
"Please install it before proceeding\n",app_name[i]);
return 1;
}
}
return 0;
}