PostgreSQL Source Code git master
common.c
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1/* src/interfaces/ecpg/pgtypeslib/common.c */
2
3#include "postgres_fe.h"
4
5#include "pgtypes.h"
6#include "pgtypeslib_extern.h"
7
8/* Return value is zero-filled. */
9char *
11{
12 char *new = (char *) calloc(1L, size);
13
14 if (!new)
15 errno = ENOMEM;
16 return new;
17}
18
19char *
20pgtypes_strdup(const char *str)
21{
22 char *new = strdup(str);
23
24 if (!new)
25 errno = ENOMEM;
26 return new;
27}
28
29int
30pgtypes_fmt_replace(union un_fmt_comb replace_val, int replace_type, char **output, int *pstr_len)
31{
32 /*
33 * general purpose variable, set to 0 in order to fix compiler warning
34 */
35 int i = 0;
36
37 switch (replace_type)
38 {
40 break;
43 i = strlen(replace_val.str_val);
44 if (i + 1 <= *pstr_len)
45 {
46 /* include trailing terminator in what we copy */
47 memcpy(*output, replace_val.str_val, i + 1);
48 *pstr_len -= i;
49 *output += i;
50 if (replace_type == PGTYPES_TYPE_STRING_MALLOCED)
51 free(replace_val.str_val);
52 return 0;
53 }
54 else
55 return -1;
56 break;
58 if (*pstr_len >= 2)
59 {
60 (*output)[0] = replace_val.char_val;
61 (*output)[1] = '\0';
62 (*pstr_len)--;
63 (*output)++;
64 return 0;
65 }
66 else
67 return -1;
68 break;
76 {
78
79 if (!t)
80 return ENOMEM;
81 switch (replace_type)
82 {
85 "%0.0g", replace_val.double_val);
86 break;
89 INT64_FORMAT, replace_val.int64_val);
90 break;
93 "%u", replace_val.uint_val);
94 break;
97 "%02u", replace_val.uint_val);
98 break;
101 "%2u", replace_val.uint_val);
102 break;
105 "%03u", replace_val.uint_val);
106 break;
109 "%04u", replace_val.uint_val);
110 break;
111 }
112
113 if (i < 0 || i >= PGTYPES_FMT_NUM_MAX_DIGITS)
114 {
115 free(t);
116 return -1;
117 }
118 i = strlen(t);
119 *pstr_len -= i;
120
121 /*
122 * if *pstr_len == 0, we don't have enough space for the
123 * terminator and the conversion fails
124 */
125 if (*pstr_len <= 0)
126 {
127 free(t);
128 return -1;
129 }
130 strcpy(*output, t);
131 *output += i;
132 free(t);
133 }
134 break;
135 default:
136 break;
137 }
138 return 0;
139}
140
141/* Functions declared in pgtypes.h. */
142
143/* Just frees memory (mostly needed for Windows) */
144void
146{
147 free(ptr);
148}
#define INT64_FORMAT
Definition: c.h:506
const char * str
#define calloc(a, b)
Definition: header.h:55
#define free(a)
Definition: header.h:65
FILE * output
char * pgtypes_strdup(const char *str)
Definition: common.c:20
int pgtypes_fmt_replace(union un_fmt_comb replace_val, int replace_type, char **output, int *pstr_len)
Definition: common.c:30
char * pgtypes_alloc(long size)
Definition: common.c:10
void PGTYPESchar_free(char *ptr)
Definition: common.c:145
int i
Definition: isn.c:72
#define PGTYPES_TYPE_STRING_CONSTANT
#define PGTYPES_TYPE_NOTHING
#define PGTYPES_TYPE_DOUBLE_NF
#define PGTYPES_TYPE_UINT
#define PGTYPES_TYPE_CHAR
#define PGTYPES_TYPE_STRING_MALLOCED
#define PGTYPES_FMT_NUM_MAX_DIGITS
#define PGTYPES_TYPE_UINT_2_LS
#define PGTYPES_TYPE_UINT_4_LZ
#define PGTYPES_TYPE_UINT_2_LZ
#define PGTYPES_TYPE_INT64
#define PGTYPES_TYPE_UINT_3_LZ
#define snprintf
Definition: port.h:239
static pg_noinline void Size size
Definition: slab.c:607
unsigned int uint_val