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Archivers with matching file extensions get first shot at an archive.
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icculus committed Jul 26, 2002
1 parent 5c1eb87 commit af32072304b248434df1f54a32af7ae17c466ccd
Showing with 51 additions and 4 deletions.
  1. +51 −4 physfs.c
@@ -209,17 +209,64 @@ void PHYSFS_getLinkedVersion(PHYSFS_Version *ver)
} /* PHYSFS_getLinkedVersion */


static const char *find_filename_extension(const char *fname)
{
const char *retval = strchr(fname, '.');
const char *p = retval;

while (p != NULL)
{
p = strchr(p + 1, '.');
if (p != NULL)
retval = p;
} /* while */

if (retval != NULL)
retval++; /* skip '.' */

return(retval);
} /* find_filename_extension */


static DirHandle *openDirectory(const char *d, int forWriting)
{
const DirFunctions **i;
const char *ext;

BAIL_IF_MACRO(!__PHYSFS_platformExists(d), ERR_NO_SUCH_FILE, NULL);

for (i = dirFunctions; *i != NULL; i++)
ext = find_filename_extension(d);
if (ext != NULL)
{
if ((*i)->isArchive(d, forWriting))
return( (*i)->openArchive(d, forWriting) );
} /* for */
/* Look for archivers with matching file extensions first... */
for (i = dirFunctions; *i != NULL; i++)
{
if (__PHYSFS_platformStricmp(ext, (*i)->info->extension) == 0)
{
if ((*i)->isArchive(d, forWriting))
return( (*i)->openArchive(d, forWriting) );
} /* if */
} /* for */

/* failing an exact file extension match, try all the others... */
for (i = dirFunctions; *i != NULL; i++)
{
if (__PHYSFS_platformStricmp(ext, (*i)->info->extension) != 0)
{
if ((*i)->isArchive(d, forWriting))
return( (*i)->openArchive(d, forWriting) );
} /* if */
} /* for */
} /* if */

else /* no extension? Try them all. */
{
for (i = dirFunctions; *i != NULL; i++)
{
if ((*i)->isArchive(d, forWriting))
return( (*i)->openArchive(d, forWriting) );
} /* for */
} /* else */

__PHYSFS_setError(ERR_UNSUPPORTED_ARCHIVE);
return(NULL);

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