/* OS_FPATHNAME -- Map a VFN (virtual filename) into a pathname (filename
* specification which is independent of the current directory).
*/
int
os_fpathname (
char *vfn, /* virtual filename */
char *osfn, /* OS filename */
int maxch
)
{
XCHAR x_vfn[SZ_PATHNAME+1];
XCHAR x_osfn[SZ_PATHNAME+1];
XINT x_maxch = SZ_PATHNAME, x_nchars;
if (vfn[0])
os_strupk (vfn2osfn(vfn,0), x_vfn, x_maxch);
else
x_vfn[0] = 0;
if (vfn[0] == '.' && (vfn[1] == EOS || vfn[2] == EOS)) {
ZFGCWD (x_osfn, &x_maxch, &x_nchars);
os_strupk ((char *)x_osfn, x_osfn, x_maxch);
if (vfn[1] == '.') {
os_strupk (vfn, x_vfn, x_maxch);
ZFSUBD (x_osfn, &x_maxch, x_vfn, &x_nchars);
}
} else
ZFPATH (x_vfn, x_osfn, &x_maxch, &x_nchars);
os_strpak (x_osfn, osfn, maxch);
return (x_nchars);
}
/* ZFPATH -- Return the absolute pathname equivalent of an OSFN. If the null
* string is given the OSFN of the current working directory is returned.
*/
int
ZFPATH (
XCHAR *osfn, /* input OS filename [NOT PACKED] */
XCHAR *pathname, /* output pathname [NOT PACKED] */
XINT *maxch,
XINT *nchars
)
{
register char *cp;
register XCHAR *ip, *op;
register int n = *maxch;
PKCHAR cwd[SZ_PATHNAME+1];
extern int ZFGCWD(PKCHAR *outstr, XINT *maxch, XINT *status);
op = pathname;
for (ip=osfn; *ip == ' '; ip++)
;
/* If the OSFN begins with a / it is already an absolute pathname.
*/
if (*ip != '/') {
ZFGCWD (cwd, maxch, nchars);
for (cp=(char *)cwd; --n >= 0 && (*op = *cp++); op++)
;
}
/* Append the filename */
while (--n >= 0 && (*op = *ip++) != XEOS)
op++;
*op = XEOS;
*nchars = (op - pathname);
return (XOK);
}
