/*
 * File to be installed as /usr/bin/python to support my 
 * Python multi-lib / multi-arch .
 * 
 */

#include <sys/types.h>
#include <unistd.h>
#include <sys/utsname.h>
#include <malloc.h>
#include <string.h>
#undef putenv
extern       int putenv(char *string);
extern char **environ;
int main(int argc, char **argv, char **envp)
{

    char **new_argv = (void*)malloc( (argc+1) * sizeof(void*));
    int i, len;
    struct utsname uts;
    char *pycmd=malloc((len = strlen(argv[0]))+256),
	 *pybin=strrchr(argv[0],'/'),
	 *python = 0L,
 	 *pyver = 0L,
	 *pyhome = strdup("PYTHONHOME=                                                               ");
    if( pybin )
    {
	strcpy( pycmd, argv[0]);
	if( pybin )
	{
	    ++pybin;
	    python = (void*)(((unsigned long)pycmd)+(((unsigned long)pybin)-((unsigned long)argv[0])));	    
	}else
	{
	    python = pycmd;
	}
    }else
    {
	pybin = argv[0];
	strcpy(pycmd,"/usr/bin/");
	python=&pycmd[9];
    }
    if( (pybin[5] == 'n') && (pybin[6] == '\0' ) )
    {
	pyver="2.7.1";
    }else
    {	
	if( (pybin[6] == '2') && (pybin[7]=='\0'))	
	{
	    pybin[6] = '\0';
	    pyver="2.7.1";
	}else	
	    pyver = &pybin[6];
    }

    for(i=1; i <= argc; i++)
    {
	new_argv[i] = argv[i];
    }

    if( ( uname( &uts ) == 0 )
	&&( ( /* ix86 : */ 
		( uts.machine[0] == 'i') 
    	     && (uts.machine[1] >= '3') 
	     && (uts.machine[1] <= '6') 
	     && (uts.machine[2] == '8') 
	     && (uts.machine[3] == '6') 		
	     && (uts.machine[4] == '\0') 		
	    ) ||  	     
	    ( /* x86 : */
		( uts.machine[0] == 'x' ) 
	     && ( uts.machine[1] == '8' ) 
	     && ( uts.machine[2] == '6' ) 
	     && ( uts.machine[3] == '\0') 		
	    )
	 )
      )
    {
	strcpy(python, "/32/");
	python += 4;
	strcpy(python, pybin );	
	strcpy(&pyhome[11],"/usr/lib32/python");
	strcat(&pyhome[11],pyver);
    }else
    {
	strcpy(python, pybin );	
	if( pyver != &pybin[6] )
	    strcat(pycmd, pyver);
	strcat(pycmd, ".bin");
	strcpy(&pyhome[11],"/usr/lib64/python");
	strcat(&pyhome[11],pyver);
    }
    new_argv[0] = pycmd;
    putenv(pyhome);
    execve( new_argv[0], new_argv, environ );	        
}