blob: 901821f3d87e08cc0b55f3929747dcff86242e7c (
plain)
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
|
/*-------------------------------------------------------------------------
*
* string.c
* string handling helpers
*
*
* Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
*
* IDENTIFICATION
* src/common/string.c
*
*-------------------------------------------------------------------------
*/
#ifndef FRONTEND
#include "postgres.h"
#else
#include "postgres_fe.h"
#endif
#include "common/string.h"
/*
* Returns whether the string `str' has the postfix `end'.
*/
bool
pg_str_endswith(const char *str, const char *end)
{
size_t slen = strlen(str);
size_t elen = strlen(end);
/* can't be a postfix if longer */
if (elen > slen)
return false;
/* compare the end of the strings */
str += slen - elen;
return strcmp(str, end) == 0;
}
/*
* Portable version of posix' strnlen.
*
* Returns the number of characters before a null-byte in the string pointed
* to by str, unless there's no null-byte before maxlen. In the latter case
* maxlen is returned.
*/
#ifndef HAVE_STRNLEN
size_t
pg_strnlen(const char *str, size_t maxlen)
{
const char *p = str;
while (maxlen-- > 0 && *p)
p++;
return p - str;
}
#endif
|
