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a8e69f5d AC |
1 | /* |
2 | * charybdis - an advanced ircd. | |
3 | * Copyright (c) 2016 William Pitcock <nenolod@dereferenced.org>. | |
4 | * | |
5 | * Permission to use, copy, modify, and/or distribute this software for any | |
6 | * purpose with or without fee is hereby granted, provided that the above | |
7 | * copyright notice and this permission notice is present in all copies. | |
8 | * | |
9 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
10 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
11 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
12 | * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, | |
13 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
14 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
15 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
16 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
17 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING | |
18 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
19 | * POSSIBILITY OF SUCH DAMAGE. | |
20 | */ | |
21 | ||
22 | #include "stdinc.h" | |
23 | #include "ircd_defs.h" | |
24 | #include "msgbuf.h" | |
25 | ||
26 | /* | |
27 | * parse a message into a MsgBuf. | |
28 | * returns 0 on success, 1 on error. | |
29 | */ | |
30 | int | |
31 | msgbuf_parse(struct MsgBuf *msgbuf, char *line) | |
32 | { | |
33 | char *ch; | |
34 | char *parv[MAXPARA]; | |
35 | size_t n_para; | |
36 | int i; | |
37 | ||
38 | /* skip any leading spaces */ | |
39 | for (ch = line; *ch && *ch == ' '; ch++) | |
40 | ; | |
41 | ||
42 | msgbuf_init(msgbuf); | |
43 | ||
44 | if (*ch == '@') | |
45 | { | |
08006c16 | 46 | char *t = ch + 1; |
a8e69f5d AC |
47 | |
48 | ch = strchr(ch, ' '); | |
49 | if (ch != NULL) | |
50 | { | |
269dd686 | 51 | while (1) |
a8e69f5d AC |
52 | { |
53 | char *next = strchr(t, ';'); | |
54 | char *eq = strchr(t, '='); | |
55 | ||
56 | if (next != NULL) | |
08006c16 | 57 | { |
a8e69f5d AC |
58 | *next = '\0'; |
59 | ||
08006c16 AC |
60 | if (eq > next) |
61 | eq = NULL; | |
62 | } | |
a8e69f5d AC |
63 | |
64 | if (eq != NULL) | |
08006c16 | 65 | *eq++ = '\0'; |
a8e69f5d | 66 | |
08006c16 | 67 | if (*t && *t != ' ') |
d670fe52 | 68 | msgbuf_append_tag(msgbuf, t, eq, 0); |
08006c16 AC |
69 | else |
70 | break; | |
269dd686 AC |
71 | |
72 | if (next != NULL) | |
73 | t = next + 1; | |
74 | else | |
75 | break; | |
a8e69f5d | 76 | } |
08006c16 AC |
77 | |
78 | *ch++ = '\0'; | |
a8e69f5d AC |
79 | } |
80 | } | |
81 | ||
82 | /* skip any whitespace between tags and origin */ | |
83 | for (; *ch && *ch == ' '; ch++) | |
84 | ; | |
85 | ||
86 | if (*ch == ':') | |
87 | { | |
88 | ch++; | |
89 | msgbuf->origin = ch; | |
90 | ||
91 | char *end = strchr(ch, ' '); | |
92 | if (end == NULL) | |
93 | return 1; | |
94 | ||
95 | *end = '\0'; | |
96 | ||
97 | for (ch = end + 1; *ch && *ch == ' '; ch++) | |
98 | ; | |
99 | } | |
100 | ||
101 | if (*ch == '\0') | |
102 | return 1; | |
103 | ||
104 | n_para = rb_string_to_array(ch, parv, MAXPARA); | |
105 | if (n_para == 0) | |
106 | return 1; | |
107 | ||
108 | msgbuf->cmd = parv[0]; | |
269dd686 | 109 | for (i = 0; i < n_para; i++) |
a8e69f5d AC |
110 | msgbuf_append_para(msgbuf, parv[i]); |
111 | ||
112 | return 0; | |
113 | } |