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# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
include <syserr.h>
include <imhdr.h>
include <imio.h>
include <knet.h>
include "oif.h"
# OIF_MKPIXFNAME -- Generate the pixel file name. Leave the logical pixfile
# name in the image header, and return the pathname to the pixel file in the
# output argument.
procedure oif_mkpixfname (im, pixfile, maxch)
pointer im # image descriptor
char pixfile[maxch] # receives pathname to pixfile
int maxch
char suffix[2]
int len_osdir, len_root, len_extn, n
pointer sp, imdir, osdir, root, extn, subdir, fname, ip, op
bool fnullfile()
int fnroot(), fnldir(), access(), envgets(), strncmp()
string pixextn OIF_PIXEXTN
errchk fmkdir, imerr
begin
# Clear junk text at the end of the filename.
call aclrc (IM_PIXFILE(im), SZ_IMPIXFILE)
# Check for the null image.
if (fnullfile (IM_HDRFILE(im))) {
call strcpy ("dev$null", IM_PIXFILE(im), SZ_IMPIXFILE)
call strcpy (IM_PIXFILE(im), pixfile, maxch)
return
}
call smark (sp)
call salloc (imdir, SZ_PATHNAME, TY_CHAR)
call salloc (osdir, SZ_PATHNAME, TY_CHAR)
call salloc (root, SZ_PATHNAME, TY_CHAR)
call salloc (subdir, SZ_PATHNAME, TY_CHAR)
call salloc (fname, SZ_PATHNAME, TY_CHAR)
call salloc (extn, SZ_FNAME, TY_CHAR)
if (envgets ("imdir", Memc[imdir], SZ_PATHNAME) <= 0)
call strcpy (HDR, Memc[imdir], SZ_PATHNAME)
if (strncmp (Memc[imdir], HDR, STRLEN_HDR) == 0) {
# Put pixfile in same directory as the header or in a subdirectory.
# In the latter case, create the directory if it does not already
# exist.
ip = imdir + STRLEN_HDR
for (op=subdir; Memc[ip] != EOS && Memc[ip] != '/'; ip=ip+1) {
Memc[op] = Memc[ip]
op = op + 1
}
Memc[op] = EOS
if (Memc[subdir] != EOS) {
n = fnldir (IM_HDRFILE(im), Memc[fname], SZ_PATHNAME)
call fpathname (Memc[fname], Memc[fname], SZ_PATHNAME)
call zfsubd (Memc[fname], SZ_PATHNAME, Memc[subdir], n)
if (access (Memc[fname], 0, DIRECTORY_FILE) == NO)
call fmkdir (Memc[fname])
}
} else
call fpathname (Memc[imdir], Memc[imdir], SZ_PATHNAME)
# Make up the root name of the new pixel file. Take the root part of
# the header file and escape sequence encode it. We have to do this
# because it is to be concatenated to an OS directory name, which will
# prevent translation of the root file name during normal filename
# mapping.
if (fnroot (IM_HDRFILE(im), Memc[fname], SZ_PATHNAME) <= 0)
call strcpy (pixextn, Memc[fname], SZ_PATHNAME)
call iki_mkfname (Memc[fname], pixextn, Memc[fname], SZ_PATHNAME)
call vfn_translate (Memc[fname], Memc[osdir], len_osdir,
Memc[root], len_root, Memc[extn], len_extn)
suffix[1] = 'a'
suffix[2] = 'a'
suffix[3] = EOS
for (n=0; ; n=n+1) {
call sprintf (IM_PIXFILE(im), SZ_PATHNAME, "%s%s.%s")
call pargstr (Memc[imdir])
call pargstr (Memc[root])
call pargstr (pixextn)
call oif_gpixfname (IM_PIXFILE(im), IM_HDRFILE(im), pixfile, maxch)
# Ensure that the filename is unique.
if (access (pixfile, 0,0) == YES) {
if (n == 0) {
for (op=root; Memc[op] != EOS; op=op+1)
;
} else {
if (suffix[2] == 'z') {
suffix[2] = 'a'
if (suffix[1] == 'z')
call imerr (IM_NAME(im), SYS_FMKTEMP)
else
suffix[1] = suffix[1] + 1
} else
suffix[2] = suffix[2] + 1
}
call strcpy (suffix, Memc[op], 2)
} else
break
}
call sfree (sp)
end
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