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
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
#include "php_snuffleupagus.h"
static int validate_int(const char *value);
static int validate_str(const char *value);
static sp_pure int validate_int(const char *value) {
for (size_t i = 0; i < strlen(value); i++) {
if (!isdigit(value[i])) {
return -1;
}
}
return 0;
}
static sp_pure int validate_str(const char *value) {
int balance = 0; // ghetto [] validation
if (!strchr(value, '[')) {
return 0;
}
for (size_t i = 0; i < strlen(value); i++) {
if (value[i] == '[') {
balance++;
} else if (value[i] == ']') {
balance--;
}
if (balance < 0) {
return -1;
}
}
return balance != 0;
}
int parse_keywords(sp_config_functions *funcs, char *line) {
int value_len = 0;
const char *original_line = line;
for (size_t i = 0; funcs[i].func; i++) {
if (!strncmp(funcs[i].token, line, strlen(funcs[i].token))) {
line += strlen(funcs[i].token);
value_len = funcs[i].func(line, funcs[i].token, funcs[i].retval) + 1;
if (value_len == 0) { // bad parameter
return -1;
}
line += value_len;
i = -1; // we start the loop again
}
}
while (*line == ';' || *line == '\t' || *line == ' ') {
line++;
}
if (*line == '#') {
return 0;
}
if (*line) {
sp_log_err("config", "Trailing chars '%s' at the end of '%s'.", line,
original_line);
return -1;
}
return 0;
}
static char *get_string(size_t *consumed, char *restrict line,
const char *restrict keyword) {
enum { IN_ESCAPE, NONE } state = NONE;
char *original_line = line;
size_t j = 0;
char *ret = NULL;
if (NULL == line) {
goto err;
}
ret = pecalloc(sizeof(char), strlen(original_line) + 1, 1);
/* The first char of a string is always '"', since they MUST be quoted. */
if ('"' == *line) {
line++;
} else {
goto err;
}
for (size_t i = 0; line[i] && j < strlen(original_line) - 2; i++) {
switch (line[i]) {
case '"':
/* A double quote at this point is either:
- at the very end of the string.
- escaped
*/
if ((state == NONE) && (line[i + 1] == SP_TOKEN_END_PARAM)) {
/* The `+2` if for
1. the terminal double-quote
2. the SP_TOKEN_END_PARAM
*/
*consumed = i + 2;
return ret;
} else if (state == IN_ESCAPE) {
break; // we're on an escped double quote
} else {
goto err;
}
case '\\':
if (state == NONE) {
state = IN_ESCAPE;
continue;
}
default:
break;
}
if (state == IN_ESCAPE) {
state = NONE;
}
ret[j++] = line[i];
}
err:
sp_log_err("error",
"There is an issue with the parsing of '%s': it doesn't look like a valid string.",
original_line ? original_line : "NULL");
line = NULL;
return NULL;
}
static char *get_misc(char *restrict line, const char *restrict keyword) {
size_t i = 0;
char *ret = pecalloc(sizeof(char), 1024, 1);
while (i < 1024 - 1 && line[i] && line[i] != SP_TOKEN_END_PARAM) {
ret[i] = line[i];
i++;
}
if (line[i] != SP_TOKEN_END_PARAM) {
if (i >= 1024 - 1) {
sp_log_err("config", "The following line is too long: %s.", line);
} else {
sp_log_err("config", "Missing closing %c in line %s.", SP_TOKEN_END_PARAM,
line);
}
return NULL;
} else if (i == 0) {
sp_log_err("config", "The keyword %s%c is expecting a parameter.",
keyword, SP_TOKEN_END_PARAM);
return NULL;
}
return ret;
}
char *get_param(size_t *consumed, char *restrict line, sp_type type,
const char *restrict keyword) {
char *retval = NULL;
if (type == SP_TYPE_STR) {
retval = get_string(consumed, line, keyword);
} else {
retval = get_misc(line, keyword);
*consumed = retval ? strlen(retval) : 0;
}
if (retval) {
if (type == SP_TYPE_STR && 0 == validate_str(retval)) {
return retval;
} else if (type == SP_TYPE_INT && 0 == validate_int(retval)) {
return retval;
}
}
return NULL;
}
// FIXME this is leaking like hell @blotus
int array_to_list(char **name_ptr, sp_node_t **keys) {
int in_key = 0;
size_t i = 0;
char *name = *name_ptr;
char *key_name = ecalloc(strlen(name) + 1, 1); // im way too lazy for
// now
char *tmp = ecalloc(strlen(name) + 1, 1);
for (i = 0; name[i] != '['; i++) {
tmp[i] = name[i];
}
tmp[i] = 0;
for (size_t j = 0; name[i]; i++) {
const char c = name[i];
if (c == '[') {
if (in_key == 0) {
in_key = 1;
} else {
efree(key_name);
return -1;
}
} else if (c == ']') {
if (in_key == 0) {
efree(key_name);
return -1;
} else {
in_key = 0;
j = 0;
sp_list_insert(*keys, pestrdup(key_name, 1));
memset(key_name, 0, strlen(name) + 1);
}
} else if (in_key == 1) {
key_name[j] = c;
j++;
}
}
efree(key_name);
*name_ptr = pestrdup(tmp, 1);
return in_key;
}
|
