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
|
/**********************************************************************
* $Id: shpcommon.c 5646 2010-05-27 13:19:12Z pramsey $
*
* PostGIS - Spatial Types for PostgreSQL
* http://postgis.refractions.net
* Copyright 2010 Mark Cave-Ayland <mark.cave-ayland@siriusit.co.uk>
*
* This is free software; you can redistribute and/or modify it under
* the terms of the GNU General Public Licence. See the COPYING file.
*
**********************************************************************/
/* This file contains functions that are shared between the loader and dumper */
#include <stdlib.h>
#include "shpcommon.h"
/**
* Escape strings that are to be used as part of a PostgreSQL connection string. If no
* characters require escaping, simply return the input pointer. Otherwise return a
* new allocated string.
*/
char *
escape_connection_string(char *str)
{
/*
* Escape apostrophes and backslashes:
* ' -> \'
* \ -> \\
*
* 1. find # of characters
* 2. make new string
*/
char *result;
char *ptr, *optr;
int toescape = 0;
size_t size;
ptr = str;
/* Count how many characters we need to escape so we know the size of the string we need to return */
while (*ptr)
{
if (*ptr == '\'' || *ptr == '\\')
toescape++;
ptr++;
}
/* If we don't have to escape anything, simply return the input pointer */
if (toescape == 0)
return str;
size = ptr - str + toescape + 1;
result = calloc(1, size);
optr = result;
ptr = str;
while (*ptr)
{
if (*ptr == '\'' || *ptr == '\\')
*optr++ = '\\';
*optr++ = *ptr++;
}
*optr = '\0';
return result;
}
|
