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
|
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 2000-2022 The OpenLDAP Foundation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
/* ACKNOWLEDGEMENT:
* This work was initially developed by Pierangelo Masarati for
* inclusion in OpenLDAP Software.
*/
#include <portable.h>
#include <stdio.h>
#include "rewrite-int.h"
static int
parse_line(
char **argv,
int *argc,
int maxargs,
char *buf
)
{
char *p, *begin;
int in_quoted_field = 0, cnt = 0;
char quote = '\0';
for ( p = buf; isspace( (unsigned char) p[ 0 ] ); p++ );
if ( p[ 0 ] == '#' ) {
return 0;
}
for ( begin = p; p[ 0 ] != '\0'; p++ ) {
if ( p[ 0 ] == '\\' && p[ 1 ] != '\0' ) {
p++;
} else if ( p[ 0 ] == '\'' || p[ 0 ] == '\"') {
if ( in_quoted_field && p[ 0 ] == quote ) {
in_quoted_field = 1 - in_quoted_field;
quote = '\0';
p[ 0 ] = '\0';
argv[ cnt ] = begin;
if ( ++cnt == maxargs ) {
*argc = cnt;
return 1;
}
for ( p++; isspace( (unsigned char) p[ 0 ] ); p++ );
begin = p;
p--;
} else if ( !in_quoted_field ) {
if ( p != begin ) {
return -1;
}
begin++;
in_quoted_field = 1 - in_quoted_field;
quote = p[ 0 ];
}
} else if ( isspace( (unsigned char) p[ 0 ] ) && !in_quoted_field ) {
p[ 0 ] = '\0';
argv[ cnt ] = begin;
if ( ++cnt == maxargs ) {
*argc = cnt;
return 1;
}
for ( p++; isspace( (unsigned char) p[ 0 ] ); p++ );
begin = p;
p--;
}
}
*argc = cnt;
return 1;
}
int
rewrite_read(
FILE *fin,
struct rewrite_info *info
)
{
char buf[ 1024 ];
char *argv[11];
int argc, lineno;
/*
* Empty rule at the beginning of the context
*/
for ( lineno = 0; fgets( buf, sizeof( buf ), fin ); lineno++ ) {
switch ( parse_line( argv, &argc, sizeof( argv ) - 1, buf ) ) {
case -1:
return REWRITE_ERR;
case 0:
break;
case 1:
if ( strncasecmp( argv[ 0 ], "rewrite", 7 ) == 0 ) {
int rc;
rc = rewrite_parse( info, "file", lineno,
argc, argv );
if ( rc != REWRITE_SUCCESS ) {
return rc;
}
}
break;
}
}
return REWRITE_SUCCESS;
}
|
