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
165
166
|
#include <ecpgtype.h>
#include <ecpglib.h>
bool
ECPGget_desc_header(int lineno, char * desc_name, int *count)
{
PGresult *ECPGresult = ECPGresultByDescriptor(lineno, desc_name);
if (!ECPGresult)
return false;
*count = PQnfields(ECPGresult);
ECPGlog("ECPGget_desc_header: found %d attributes.\n", *count);
return true;
}
static bool
get_int_item(int lineno, void *var, enum ECPGdtype vartype, int value)
{
switch (vartype)
{
case ECPGt_short:
*(short *)var = value;
break;
case ECPGt_int:
*(int *)var = value;
break;
case ECPGt_long:
*(long *)var = value;
break;
case ECPGt_unsigned_short:
*(unsigned short *)var = value;
break;
case ECPGt_unsigned_int:
*(unsigned int *)var = value;
break;
case ECPGt_unsigned_long:
*(unsigned long *)var = value;
break;
case ECPGt_float:
*(float *)var = value;
break;
case ECPGt_double:
*(double *)var = value;
break;
default:
ECPGraise(lineno, ECPG_VAR_NOT_NUMERIC, NULL);
return (false);
}
return(true);
}
bool
ECPGget_desc(int lineno, char *desc_name, int index, ...)
{
va_list args;
PGresult *ECPGresult = ECPGresultByDescriptor(lineno, desc_name);
enum ECPGdtype type;
bool DataButNoIndicator = false;
va_start(args, index);
if (!ECPGresult)
return (false);
if (PQntuples(ECPGresult) < 1)
{
ECPGraise(lineno, ECPG_NOT_FOUND, NULL);
return (false);
}
if (index < 1 || index >PQnfields(ECPGresult))
{
ECPGraise(lineno, ECPG_INVALID_DESCRIPTOR_INDEX, NULL);
return (false);
}
ECPGlog("ECPGget_desc: reading items for tuple %d\n", index);
--index;
type = va_arg(args, enum ECPGdtype);
while (type != ECPGd_EODT)
{
char type_str[20];
long varcharsize;
long offset;
long arrsize;
enum ECPGttype vartype;
void *var;
vartype = va_arg(args, enum ECPGttype);
var = va_arg(args, void *);
varcharsize = va_arg(args, long);
arrsize = va_arg(args, long);
offset = va_arg(args, long);
switch (type)
{
case (ECPGd_indicator):
if (!get_int_item(lineno, var, vartype, -PQgetisnull(ECPGresult, 0, index)))
return (false);
break;
case ECPGd_name:
strncpy((char *)var, PQfname(ECPGresult, index), varcharsize);
break;
case ECPGd_nullable:
if (!get_int_item(lineno, var, vartype, 1))
return (false);
break;
case ECPGd_key_member:
if (!get_int_item(lineno, var, vartype, 0))
return (false);
break;
case ECPGd_scale:
if (!get_int_item(lineno, var, vartype, (PQfmod(ECPGresult, index) - VARHDRSZ) & 0xffff))
return (false);
break;
case ECPGd_precision:
if (!get_int_item(lineno, var, vartype, PQfmod(ECPGresult, index) >> 16))
return (false);
break;
case ECPGd_ret_length:
case ECPGd_ret_octet:
if (!get_int_item(lineno, var, vartype, PQgetlength(ECPGresult, 0, index)))
return (false);
break;
case ECPGd_octet:
if (!get_int_item(lineno, var, vartype, PQfsize(ECPGresult, index)))
return (false);
break;
case ECPGd_length:
if (!get_int_item(lineno, var, vartype, PQfmod(ECPGresult, index) - VARHDRSZ))
return (false);
break;
case ECPGd_type:
if (!get_int_item(lineno, var, vartype, ECPGDynamicType(PQftype(ECPGresult, index))))
return (false);
break;
default:
snprintf(type_str, sizeof(type_str), "%d", type);
ECPGraise(lineno, ECPG_UNKNOWN_DESCRIPTOR_ITEM, type_str);
return(false);
}
type = va_arg(args, enum ECPGdtype);
}
if (DataButNoIndicator && PQgetisnull(ECPGresult, 0, index))
{
ECPGraise(lineno, ECPG_MISSING_INDICATOR, NULL);
return (false);
}
return (true);
}
|
