1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
include <fset.h>
include <pkg/cq.h>
define DEF_SZPARS 15
define DEF_SZBUF 32768
procedure t_adumpcat()
pointer sp, catalog, output, catdb, ra, dec, size
pointer query, qpname, qpvalue, qpunits, qpformats, str, cq, buf
int i, fd, ofd, nqpars, parno, nchars
bool done
pointer cq_map()
int cq_setcat(), ndopen(), open(), cq_nqpars(), cq_gqparn(), read()
int getline()
bool streq()
errchk ndopen()
begin
# Allocate some working space.
call smark (sp)
call salloc (catalog, SZ_FNAME, TY_CHAR)
call salloc (output, SZ_FNAME, TY_CHAR)
call salloc (catdb, SZ_FNAME, TY_CHAR)
call salloc (ra, DEF_SZPARS, TY_CHAR)
call salloc (dec, DEF_SZPARS, TY_CHAR)
call salloc (size, DEF_SZPARS, TY_CHAR)
call salloc (qpname, CQ_SZ_QPNAME, TY_CHAR)
call salloc (qpvalue, CQ_SZ_QPVALUE, TY_CHAR)
call salloc (qpunits, CQ_SZ_QPUNITS, TY_CHAR)
call salloc (qpformats, CQ_SZ_QPFMTS, TY_CHAR)
call salloc (query, SZ_LINE, TY_CHAR)
call salloc (str, SZ_LINE, TY_CHAR)
call salloc (buf, DEF_SZBUF, TY_CHAR)
# Get the parameters.
call clgstr ("catalog", Memc[catalog], SZ_FNAME)
call clgstr ("output", Memc[output], SZ_FNAME)
call clgstr ("ra", Memc[ra], DEF_SZPARS)
call clgstr ("dec", Memc[dec], DEF_SZPARS)
call clgstr ("size", Memc[size], DEF_SZPARS)
call clgstr ("catdb", Memc[catdb], SZ_FNAME)
# Map the catalog configuration file.
cq = cq_map (Memc[catdb], READ_ONLY)
if (cq == NULL) {
call eprintf ("Cannot open catalog configuration file %s\n")
call pargstr (Memc[catdb])
call sfree (sp)
return
}
# Locate the catalog record.
if (cq_setcat (cq, Memc[catalog]) <= 0) {
call eprintf ("Cannot locate catalog record %s\n")
call pargstr (Memc[catalog])
call cq_unmap (cq)
call sfree (sp)
return
}
# Connect to the HTTP server.
call cq_fgwrd (cq, "address", Memc[str], SZ_LINE)
iferr (fd = ndopen (Memc[str], READ_WRITE)) {
call eprintf ("Cannot access catalog %s at host %s\n")
call pargstr (Memc[catalog])
call pargstr (Memc[str])
call cq_unmap (cq)
call sfree (sp)
return
}
# Open the output file.
ofd = open (Memc[output], NEW_FILE, TEXT_FILE)
# Format the query without worrying about coordinate systems,
# or formats. Just assume that the user types in ra, dec, and
# size in the form expected by the server.
call cq_fgstr (cq, "query", Memc[query], SZ_LINE)
nqpars = cq_nqpars (cq)
call sprintf (Memc[str], SZ_LINE, Memc[query])
do i = 1, nqpars {
# Get description of each query parameter.
parno = cq_gqparn (cq, i, Memc[qpname], CQ_SZ_QPNAME,
Memc[qpvalue], CQ_SZ_QPVALUE, Memc[qpunits], CQ_SZ_QPUNITS,
Memc[qpformats], CQ_SZ_QPFMTS)
# Pass the parameters to the query string.
if (streq (Memc[qpname], "ra")) {
call pargstr (Memc[ra])
} else if (streq (Memc[qpname], "dec")) {
call pargstr (Memc[dec])
} else if (streq (Memc[qpname], "width")) {
call pargstr (Memc[size])
} else if (streq (Memc[qpname], "xwidth")) {
call pargstr (Memc[size])
} else if (streq (Memc[qpname], "ywidth")) {
call pargstr (Memc[size])
} else if (streq (Memc[qpname], "rawidth")) {
call pargstr (Memc[size])
} else if (streq (Memc[qpname], "decwidth")) {
call pargstr (Memc[size])
} else if (streq (Memc[qpname], "hwidth")) {
call pargstr (Memc[size])
} else if (streq (Memc[qpname], "xhwidth")) {
call pargstr (Memc[size])
} else if (streq (Memc[qpname], "yhwidth")) {
call pargstr (Memc[size])
} else if (streq (Memc[qpname], "xrawidth")) {
call pargstr (Memc[size])
} else if (streq (Memc[qpname], "ydecwidth")) {
call pargstr (Memc[size])
} else if (streq (Memc[qpname], "radius")) {
call pargstr (Memc[size])
} else {
call pargstr (Memc[qpvalue])
}
}
# Send the query.
call fprintf (fd, "%s")
call pargstr (Memc[str])
call flush (fd)
call fseti (fd, F_CANCEL, OK)
# Read the reply. Skip the HTTP header assuming it ends with a \n or
# a \r\n.
call cq_fgwrd (cq, "protocol", Memc[str], SZ_LINE)
if (streq (Memc[str], "http")) {
repeat {
nchars = getline (fd, Memc[buf])
if (nchars <= 0)
break
Memc[buf+nchars] = EOS
} until ((Memc[buf] == '\r' && Memc[buf+1] == '\n') ||
(Memc[buf] == '\n'))
}
# Read the reply.
repeat {
nchars = read (fd, Memc[buf], DEF_SZBUF)
if (nchars > 0) {
Memc[buf+nchars] = EOS
call write (ofd, Memc[buf], nchars)
done = false
} else {
done = true
}
} until (done)
call flush (ofd)
# Close the output.
call close (ofd)
# Close the network connection.
call close (fd)
# Unmap the database.
call cq_unmap (cq)
call sfree (sp)
end
|
