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/* Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
*/
#include "bootlib.h"
/* 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;
extern int ZFGCWD(), ZFSUBD(), ZFPATH();
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);
}
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