#include <sys/types.h>
#if !defined(DIRECT) && !defined(BSD)
#include <dirent.h>
#define NLENGTH(direct) (strlen((direct)->d_name))
#else
#undef dirent
#define dirent direct
#define NLENGTH(direct) ((direct)->d_namlen)
#ifdef BSD
#include <sys/dir.h>
#else
#ifdef SYSNDIR
#include <sys/ndir.h>
#else
#include <ndir.h>
#endif
#endif
#endif
#if defined(VOID_CLOSEDIR) || defined(BSD)
#define CLOSEDIR(d) (closedir (d), 0)
#else
#define CLOSEDIR(d) closedir (d)
#endif
#include <stdlib.h>
#include <string.h>
#include <stddef.h>
char *stpcpy ();
char *
savedir (dir, name_size)
char *dir;
unsigned name_size;
{
DIR *dirp;
struct dirent *dp;
char *name_space;
char *namep;
dirp = opendir (dir);
if (dirp == NULL)
return NULL;
name_space = (char *) malloc (name_size);
if (name_space == NULL)
{
closedir (dirp);
return NULL;
}
namep = name_space;
while ((dp = readdir (dirp)) != NULL)
{
if (dp->d_name[0] != '.'
|| (dp->d_name[1] != '\0'
&& (dp->d_name[1] != '.' || dp->d_name[2] != '\0')))
{
unsigned size_needed = (namep - name_space) + NLENGTH (dp) + 2;
if (size_needed > name_size)
{
char *new_name_space;
while (size_needed > name_size)
name_size += 1024;
new_name_space = realloc (name_space, name_size);
if (new_name_space == NULL)
{
closedir (dirp);
return NULL;
}
namep += new_name_space - name_space;
name_space = new_name_space;
}
strcpy (namep, dp->d_name);
namep += strlen (namep) + 1;
}
}
*namep = '\0';
if (CLOSEDIR (dirp))
{
free (name_space);
return NULL;
}
return name_space;
}