#include <config.h>
#include "bashtypes.h"
#include "posixstat.h"
#if defined (HAVE_UNISTD_H)
# include <unistd.h>
#endif
#include "bashansi.h"
#include "shell.h"
#include "findcmd.h"
#include "hashcmd.h"
extern int hashing_enabled;
HASH_TABLE *hashed_filenames = (HASH_TABLE *)NULL;
static void phash_freedata __P((PTR_T));
void
phash_create ()
{
if (hashed_filenames == 0)
hashed_filenames = hash_create (FILENAME_HASH_BUCKETS);
}
static void
phash_freedata (data)
PTR_T data;
{
free (((PATH_DATA *)data)->path);
free (data);
}
void
phash_flush ()
{
if (hashed_filenames)
hash_flush (hashed_filenames, phash_freedata);
}
int
phash_remove (filename)
const char *filename;
{
register BUCKET_CONTENTS *item;
if (hashing_enabled == 0 || hashed_filenames == 0)
return 0;
item = hash_remove (filename, hashed_filenames, 0);
if (item)
{
if (item->data)
phash_freedata (item->data);
free (item->key);
free (item);
return 0;
}
return 1;
}
void
phash_insert (filename, full_path, check_dot, found)
char *filename, *full_path;
int check_dot, found;
{
register BUCKET_CONTENTS *item;
if (hashing_enabled == 0)
return;
if (hashed_filenames == 0)
phash_create ();
item = hash_insert (filename, hashed_filenames, 0);
if (item->data)
free (pathdata(item)->path);
else
{
item->key = savestring (filename);
item->data = xmalloc (sizeof (PATH_DATA));
}
pathdata(item)->path = savestring (full_path);
pathdata(item)->flags = 0;
if (check_dot)
pathdata(item)->flags |= HASH_CHKDOT;
if (*full_path != '/')
pathdata(item)->flags |= HASH_RELPATH;
item->times_found = found;
}
char *
phash_search (filename)
const char *filename;
{
register BUCKET_CONTENTS *item;
char *path, *dotted_filename, *tail;
int same;
if (hashing_enabled == 0 || hashed_filenames == 0)
return ((char *)NULL);
item = hash_search (filename, hashed_filenames, 0);
if (item == NULL)
return ((char *)NULL);
path = pathdata(item)->path;
if (pathdata(item)->flags & (HASH_CHKDOT|HASH_RELPATH))
{
tail = (pathdata(item)->flags & HASH_RELPATH) ? path : (char *)filename;
if (tail[0] != '.' || tail[1] != '/')
{
dotted_filename = (char *)xmalloc (3 + strlen (tail));
dotted_filename[0] = '.'; dotted_filename[1] = '/';
strcpy (dotted_filename + 2, tail);
}
else
dotted_filename = savestring (tail);
if (executable_file (dotted_filename))
return (dotted_filename);
free (dotted_filename);
#if 0
if (pathdata(item)->flags & HASH_RELPATH)
return ((char *)NULL);
#endif
if (*path == '.')
{
same = 0;
tail = (char *)strrchr (path, '/');
if (tail)
{
*tail = '\0';
same = same_file (".", path, (struct stat *)NULL, (struct stat *)NULL);
*tail = '/';
}
return same ? (char *)NULL : savestring (path);
}
}
return (savestring (path));
}