Thread: Efault

Hello,
I running the following command from 'server';

I am using the command system( "rcp /home/user/[1-3]??? machine1:/location/" ); I run this command as root.

However, I cannot seem to copy the desired files.

Also, 'machine1' has file .rhosts which says 'server root';

Also, the errno is 14(EFAULT).

Can anyone help me why I'm getting this fault? Also, if I run this command at the prompt I can copy the files i.e. no problem.

Thanks in advance.

I think that this is the problem

/home/user/[1-3]???

When you type this on the command line, it is the shell which performs the wildcard expansion - not the program.

I don't know whether the same expansion happens when you use the system() function - personally, I would think not.

Try using system with a specific named file.

> Also, the errno is 14(EFAULT).
You'd have to post some code.
EFAULT just means 'bad address', which covers a multitude of sins.

here's my code, please keep in mind that I'm using a really old compiler. Also, I don't know what version I'm using.

by the way, even with "system("ls");" errno is still 14 i.e. EFAULT
incredible isn't it???



copyfile( sTester, apTester )
int sTester;
char *apTester[];
{
int status;
char *tmp;

tmp = (char *)malloc(sizeof(char) * GETTEMP );


while( 1 )
{
if( sTester < 0 )
return 0;
else if( sTester >= 0 )
{
memset( tmp,0,sizeof(tmp));

strcpy( tmp,"rcp /home/user1/[1-3]??? " );
strcat( tmp,apTester[sTester] );
strcat( tmp,":/hp3070/autofile/" );

#if 0
printf( "|%s|\n",tmp );

puts( tmp );getchar();
printf(" errorno is %d",errno);

system( tmp );
#endif
status = system( "ls" );
printf("\n here errorno is %d %d",errno,status );getchar();
system( "rcp //home//user1//[1-3]??? hpfem1a://hp3070//autofile" );


memset( tmp,0,sizeof(tmp));
strcpy( tmp,"remsh " );
strcat( tmp,apTester[sTester] );
strcat( tmp," chmod 775 /hp3070/autofile/[1-3]???" );
#if 0
/* puts( tmp );*/
#endif
system( tmp );

memset( tmp,0,sizeof(tmp));
strcpy( tmp,"remsh " );
strcat( tmp,apTester[sTester] );
strcat( tmp," chown root:sys /hp3070/autofile/[1-3]???" );
#if 0
/* puts( tmp );*/
#endif
system( tmp );


}

sTester = sTester - 1;

}

memset( tmp,0,sizeof(tmp));
strcpy( tmp,"rm -f /home/user1/[1-3]???" );
system( tmp );
#if 0
/* puts( tmp );*/
#endif


return 1;

}


thanks for any tips/help

actually, there more code and I think it's got something to do with pointers.
I think I'll have to debug it really slowly...

thanks anyway