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
|
/* Copyright (C) 2020 C. McEnroe <june@causal.agency>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <err.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sysexits.h>
#define ENUM_ATOM \
X(AtomNil, "NIL") \
X(AtomOk, "OK") \
X(AtomNo, "NO") \
X(AtomBad, "BAD") \
X(AtomPreauth, "PREAUTH") \
X(AtomBye, "BYE") \
X(AtomAlert, "ALERT") \
X(AtomBadCharset, "BADCHARSET") \
X(AtomCapability, "CAPABILITY") \
X(AtomParse, "PARSE") \
X(AtomPermanentFlags, "PERMANENTFLAGS") \
X(AtomReadOnly, "READ-ONLY") \
X(AtomReadWrite, "READ-WRITE") \
X(AtomTryCreate, "TRYCREATE") \
X(AtomUIDNext, "UIDNEXT") \
X(AtomUIDValidity, "UIDVALIDITY") \
X(AtomUnseen, "UNSEEN") \
X(AtomList, "LIST") \
X(AtomLSub, "LSUB") \
X(AtomStatus, "STATUS") \
X(AtomSearch, "SEARCH") \
X(AtomFlags, "FLAGS") \
X(AtomExists, "EXISTS") \
X(AtomRecent, "RECENT") \
X(AtomExpunge, "EXPUNGE") \
X(AtomFetch, "FETCH") \
X(AtomUntagged, "*")
enum Atom {
#define X(id, str) id,
ENUM_ATOM
#undef X
AtomCap = 1024,
};
extern const char *Atoms[AtomCap];
static inline enum Atom atomn(const char *str, size_t len) {
enum Atom i;
for (i = 0; i < AtomCap; ++i) {
if (!Atoms[i]) break;
if (strlen(Atoms[i]) != len) continue;
if (!strncasecmp(Atoms[i], str, len)) return i;
}
if (i == AtomCap) errx(EX_SOFTWARE, "atom capacity exceeded");
Atoms[i] = strndup(str, len);
if (!Atoms[i]) err(EX_OSERR, "strndup");
return i;
}
static inline enum Atom atom(const char *str) {
return atomn(str, strlen(str));
}
struct Data {
enum Type {
Atom,
Number,
String,
List,
} type;
union {
enum Atom atom;
uint32_t number;
char *string;
struct List {
size_t cap;
size_t len;
struct Data *ptr;
} list;
};
};
static inline void dataFree(struct Data data) {
if (data.type == String) free(data.string);
if (data.type == List) {
for (size_t i = 0; i < data.list.len; ++i) {
dataFree(data.list.ptr[i]);
}
free(data.list.ptr);
}
}
struct Resp {
enum Atom tag;
uint32_t number;
enum Atom resp;
struct List code;
struct List data;
const char *text;
};
static inline void respFree(struct Resp resp) {
for (size_t i = 0; i < resp.code.len; ++i) {
dataFree(resp.code.ptr[i]);
}
for (size_t i = 0; i < resp.data.len; ++i) {
dataFree(resp.data.ptr[i]);
}
}
extern bool imapVerbose;
FILE *imapOpen(const char *host, const char *port);
struct Resp imapResp(FILE *imap);
|