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# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
include <fio.h>
include <fset.h>
include <finfo.h>
include <time.h>
include <syserr.h>
# CHKUPDATE -- Check to see whether the current IRAF system is up to date
# relative to what's available on the NOAO server.
procedure t_chkupdate ()
char version[SZ_FNAME], baseurl[SZ_FNAME], chkfile[SZ_LINE]
char netpath[SZ_LINE], arch[SZ_FNAME], tmpfile[SZ_FNAME]
char host[SZ_LINE], ref_file[SZ_LINE], release[SZ_LINE]
char buf[SZ_LINE]
pointer reply
bool verbose
long last, reldate, ndays, info[LEN_FINFO]
int ip, op, fd, nread, interval, tm[LEN_TMSTRUCT]
int clgeti(), envgets(), access(), open(), url_get()
int strlen(), getline(), finfo()
bool clgetb()
long clktime(), ctol()
define done_ 99
begin
# Initialize strings.
call aclrc (baseurl, SZ_LINE)
call aclrc (release, SZ_LINE)
call aclrc (ref_file, SZ_LINE)
call aclrc (chkfile, SZ_LINE)
call aclrc (tmpfile, SZ_FNAME)
call aclrc (arch, SZ_FNAME)
call aclrc (version, SZ_FNAME)
call strcpy ("uparm$update", chkfile, SZ_LINE)
call mktemp ("tmp$url", tmpfile, SZ_FNAME)
if (envgets ("arch", arch, SZ_FNAME) == ERR) {
if (verbose)
call eprintf ("Error: cannot get architecture.\n")
return
}
# Get the task parameters.
call clgstr ("ref_file", ref_file, SZ_LINE)
call clgstr ("release", release, SZ_LINE)
call clgstr ("baseurl", baseurl, SZ_FNAME)
verbose = clgetb ("verbose")
interval = clgeti ("interval")
# See whether we're doing an update check. If the interval is less
# than zero it means the update is disabled. A zero value means we
# check at each login, otherwise we've specified the number of days
# since our last check. The check time is kept in the uparm$update
# file which is created the first time we run, and updated after each
# check.
if (interval < 0) {
return # nothing to do
} else if (interval >= 0) {
# See if current time is more than N interval days since last
# check.
if (access (chkfile, 0, 0) == NO) {
# No update file found, create one and check for updates.
fd = open (chkfile, NEW_FILE, TEXT_FILE)
call fprintf (fd, "%d\n")
call pargl (clktime (0))
call close (fd)
} else {
call aclrc (buf, SZ_LINE)
fd = open (chkfile, READ_ONLY, TEXT_FILE)
if (getline (fd, buf) != EOF) {
ip = 1
if (ctol (buf, ip, last) > 0) {
ndays = (clktime(0) - last) / 86400
if (ndays < interval) {
call close (fd)
return # too recent
}
}
}
call close (fd)
}
}
# Transform the CL version string to one we can use in the URL.
version[1] = 'v' ; op = 2
for (ip=1; release[ip] != NULL && ip < SZ_LINE; ip=ip+1) {
if (release[ip] != '.') {
version[op] = release[ip]
op = op + 1
}
}
# Create the URL to the release timestamp file.
call sprintf (netpath, SZ_LINE, "%s/%s/releases/%s")
call pargstr (baseurl)
call pargstr (version)
call pargstr (arch[2])
# Access the URL and get the reply.
call calloc (reply, SZ_LINE, TY_CHAR)
if (url_get (netpath, tmpfile, reply) > 0) {
call aclrc (buf, SZ_LINE)
fd = open (tmpfile, READ_ONLY, TEXT_FILE)
if (getline (fd, buf) != EOF) {
ip = 1
if (ctol (buf, ip, reldate) > 0) {
if (access (ref_file, 0, 0) == NO) {
if (verbose)
call eprintf ("Error: no release file\n")
call close (fd)
goto done_
}
if (access (ref_file, 0, 0) == YES &&
finfo (ref_file, info) != ERR) {
call brktime (reldate, tm)
call printf (" *** Checking update status... ")
# Add a 1-day offset to the release date to ensure
# the ref_file timestamp is less than the URL file,
# both of which are created during the packaging of
# a release. This avoids a case where we would
# *always* get an update notification.
reldate = reldate + 86400
if (FI_CTIME(info) < reldate) {
call aclrc (release, SZ_LINE)
call strcpy (buf[ip+1], release, SZ_LINE)
release[strlen(release)] = NULL
call printf (
"IRAF %s update available on %d/%d/%d\n")
call pargstr (release)
call pargi (TM_MONTH(tm))
call pargi (TM_MDAY(tm))
call pargi (TM_YEAR(tm))
call close (fd)
goto done_
} else {
call printf ("Your IRAF system is up to date\n")
}
}
}
}
call close (fd)
} else
; # got a HTTP error code, quit
# Write the current check time to the update file to reset the
# interval.
fd = open (chkfile, READ_WRITE, TEXT_FILE)
call fprintf (fd, "%d\n")
call pargl (clktime (0))
call close (fd)
# Clean up.
done_ call mfree (reply, TY_CHAR)
if (access (tmpfile, 0, 0) == YES)
call delete (tmpfile)
end
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