Newbie's problem with fopen

Ishwar Rattan ishwar@cps.cmich.edu
Sat Sep 27 14:21:00 GMT 2003


Success in using library functions and system calls depends on
looking at the error returned (trap the error) and read the
man page. It has nothing to do with gcc.

-ishwar


On Fri, 26 Sep 2003, Andre Kirchner wrote:

> Hi,
>
> after a lot of debug I realize that there was nothing
> wrong with fopen at logLink, but with opendir in
> makeSubDir.
> makeSubDir creates the following new subdirectory. All
> subdirectories are like /home/andre/001,
> /home/andre/002, ...
> The problem is that even though a directory exists,
> sometimes opendir can't open it, and returns NULL.
> Does anyone have any idea about what could be wrong?
>
> Thanks,
>
> Andre
>
> int makeSubDir( const char * theDirectory, char *
> newSubDirectory )
> {
> 	int subDir = 0;
> 	if( opendir( theDirectory ) == 0 )
> 		return( -1 );
>
> 	do
> 	{
> 		subDir++;
> 		sprintf( newSubDirectory, "%s/%03d", theDirectory,
> subDir );
> 	}
> 	while( opendir( newSubDirectory ) );
>
> 	mkdir( newSubDirectory, S_IRUSR + S_IWUSR + S_IXUSR
> );
> 	if( opendir( newSubDirectory ) == 0 )
> 		return( -1 );
>
> 	return( 0 );
> }
>
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