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Subject: Re: DJGPP scandir and alphasort example code
From: Georg Potthast <dosusb AT googlemail DOT com>
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Am Dienstag, 26. März 2013 19:20:43 UTC+1 schrieb RayeR:
> Yes this static version doesn't crash.
> 
> Maybe you can try to copy some files with long names to your rootdir to reproduce the bug...

I do have long filenames in C:\ e.g. "VirtualBox-3.2.10-66523-Win.exe". It does not crash though.

The glob() is used to determine the number of entries in the directory. In the static version posted this is limited to 2048 entries.

Anyway below is what I wanted to post. Maybe someone can tell what is wrong with the glob() usage part.

	DIR *dirptr;
	struct dirent *dir_entry;
	int tdirsize = sizeof(struct dirent);
	register int i=0;
	int si=0;
	size_t cnt;
#if 0
	size_t cnt;
        glob_t glob_results;
        char *wildcard;
	char *wildcardpos;
	wildcard=calloc(_POSIX_PATH_MAX,sizeof(char));

	if ((dirptr = opendir(dirname)) == NULL)
		return -1;

	//read number of entries in directory
	strcpy(wildcard,dirname);
	//remove trailing slash
	wildcardpos=strrchr(wildcard,'\\');
	if (strlen(wildcardpos)==strlen(wildcard)) wildcard[strlen(wildcard)-1]='\0'; //printf("hier");
	//add * for all entries
	strcat(wildcard,"\\*");
	if(glob(wildcard, GLOB_NOESCAPE|GLOB_NOCHECK|GLOB_NOSORT, NULL, &glob_results) == 0)
	cnt = glob_results.gl_pathc +2; //add two for . and ..
	globfree(&glob_results);
	free(wildcard);
	
	//dynamic tdir array allocation
	static struct dirent *tdir;
	tdir = (struct dirent*) calloc(cnt,sizeof(struct dirent));
#else
	static struct dirent *tdir[2048];
	if ((dirptr = opendir(dirname)) == NULL)
	return -1;
#endif
	if ((*namelist = (struct dirent **) calloc(cnt, sizeof(struct dirent *)))
		== NULL)
		return -1;