my_string unpack_filename(my_string to, const char *from)
{
uint length,n_length;
char buff[FN_REFLEN];
DBUG_ENTER("unpack_filename");
length=dirname_part(buff,from); /* copy & convert dirname */
n_length=unpack_dirname(buff,buff);
if (n_length+strlen(from+length) < FN_REFLEN)
{
(void) strmov(buff+n_length,from+length);
(void) system_filename(to,buff); /* Fix to usably filename */
}
else
(void) system_filename(to,from); /* Fix to usably filename */
DBUG_RETURN(to);
} /* unpack_filename */
size_t unpack_filename(char * to, const char *from)
{
size_t length, n_length, buff_length;
char buff[FN_REFLEN + 1];
DBUG_ENTER("unpack_filename");
length=dirname_part(buff, from, &buff_length);/* copy & convert dirname */
n_length=unpack_dirname(buff,buff);
if (n_length+strlen(from+length) < FN_REFLEN)
{
(void) strmov(buff+n_length,from+length);
length= system_filename(to,buff); /* Fix to usably filename */
}
else
length= system_filename(to,from); /* Fix to usably filename */
DBUG_RETURN(length);
} /* unpack_filename */
char * fn_format(char * to, const char *name, const char *dir,
const char *extension, uint flag)
{
char dev[FN_REFLEN], buff[FN_REFLEN], *pos, *startpos;
const char *ext;
reg1 size_t length;
size_t dev_length;
my_bool not_used;
DBUG_ENTER("fn_format");
DBUG_ASSERT(name != NULL);
DBUG_ASSERT(extension != NULL);
DBUG_PRINT("enter",("name: %s dir: %s extension: %s flag: %d",
name,dir,extension,flag));
/* Copy and skip directory */
name+=(length=dirname_part(dev, (startpos=(char *) name), &dev_length));
if (length == 0 || (flag & MY_REPLACE_DIR))
{
DBUG_ASSERT(dir != NULL);
/* Use given directory */
convert_dirname(dev,dir,NullS); /* Fix to this OS */
}
else if ((flag & MY_RELATIVE_PATH) && !test_if_hard_path(dev))
{
DBUG_ASSERT(dir != NULL);
/* Put 'dir' before the given path */
strmake(buff,dev,sizeof(buff)-1);
pos=convert_dirname(dev,dir,NullS);
strmake(pos,buff,sizeof(buff)-1- (int) (pos-dev));
}
if (flag & MY_PACK_FILENAME)
pack_dirname(dev,dev); /* Put in ./.. and ~/.. */
if (flag & MY_UNPACK_FILENAME)
(void) unpack_dirname(dev, dev, ¬_used); /* Replace ~/.. with dir */
if (!(flag & MY_APPEND_EXT) &&
(pos= (char*) strchr(name,FN_EXTCHAR)) != NullS)
{
if ((flag & MY_REPLACE_EXT) == 0) /* If we should keep old ext */
{
length=strlength(name); /* Use old extension */
ext = "";
}
else
{
length= (size_t) (pos-(char*) name); /* Change extension */
ext= extension;
}
}
else
{
length=strlength(name); /* No ext, use the now one */
ext=extension;
}
if (strlen(dev)+length+strlen(ext) >= FN_REFLEN || length >= FN_LEN )
{
/* To long path, return original or NULL */
size_t tmp_length;
if (flag & MY_SAFE_PATH)
DBUG_RETURN(NullS);
tmp_length= strlength(startpos);
DBUG_PRINT("error",("dev: '%s' ext: '%s' length: %u",dev,ext,
(uint) length));
(void) strmake(to, startpos, MY_MIN(tmp_length, FN_REFLEN-1));
}
else
{
if (to == startpos)
{
bmove(buff,(uchar*) name,length); /* Save name for last copy */
name=buff;
}
pos=strmake(strmov(to,dev),name,length);
(void) strmov(pos,ext); /* Don't convert extension */
}
/*
If MY_RETURN_REAL_PATH and MY_RESOLVE_SYMLINK is given, only do
realpath if the file is a symbolic link
*/
if (flag & MY_RETURN_REAL_PATH)
(void) my_realpath(to, to, MYF(flag & MY_RESOLVE_SYMLINKS ?
MY_RESOLVE_LINK: 0));
else if (flag & MY_RESOLVE_SYMLINKS)
{
strmov(buff,to);
(void) my_readlink(to, buff, MYF(0));
}
DBUG_RETURN(to);
} /* fn_format */
my_string fn_format(my_string to, const char *name, const char *dsk,
const char *form, int flag)
{
reg1 uint length;
char dev[FN_REFLEN], buff[BUFF_LEN], *pos, *startpos;
const char *ext;
DBUG_ENTER("fn_format");
DBUG_PRINT("enter",("name: %s dsk: %s form: %s flag: %d",
name,dsk,form,flag));
/* Kopiera & skippa enheten */
name+=(length=dirname_part(dev,(startpos=(my_string) name)));
if (length == 0 || flag & 1)
{
(void) strmake(dev,dsk, sizeof(dev) - 2);
/* Use given directory */
convert_dirname(dev); /* Fix to this OS */
}
if (flag & 8)
pack_dirname(dev,dev); /* Put in ./.. and ~/.. */
if (flag & 4)
(void) unpack_dirname(dev,dev); /* Replace ~/.. with dir */
if ((pos=(char*)strchr(name,FN_EXTCHAR)) != NullS)
{
if ((flag & 2) == 0) /* Skall vi byta extension ? */
{
length=strlength(name); /* Old extension */
ext = "";
}
else
{
length=(uint) (pos-(char*) name); /* Change extension */
ext= form;
}
}
else
{
length=strlength(name); /* Har ingen ext- tag nya */
ext=form;
}
if (strlen(dev)+length+strlen(ext) >= FN_REFLEN || length >= FN_LEN )
{ /* To long path, return original */
uint tmp_length;
if (flag & 64)
return 0;
tmp_length=strlength(startpos);
DBUG_PRINT("error",("dev: '%s' ext: '%s' length: %d",dev,ext,length));
(void) strmake(to,startpos,min(tmp_length,FN_REFLEN-1));
}
else
{
if (to == startpos)
{
bmove(buff,(char*) name,length); /* Save name for last copy */
name=buff;
}
pos=strmake(strmov(to,dev),name,length);
#ifdef FN_UPPER_CASE
caseup_str(to);
#endif
#ifdef FN_LOWER_CASE
casedn_str(to);
#endif
(void) strmov(pos,ext); /* Don't convert extension */
}
/* Purify gives a lot of UMR errors when using realpath */
#if defined(HAVE_REALPATH) && !defined(HAVE_purify) && !defined(HAVE_BROKEN_REALPATH)
if (flag & 16)
{
struct stat stat_buff;
if (flag & 32 || (!lstat(to,&stat_buff) && S_ISLNK(stat_buff.st_mode)))
{
if (realpath(to,buff))
strmake(to,buff,FN_REFLEN-1);
}
}
#endif
DBUG_RETURN (to);
} /* fn_format */
