1 /* -*- mode: fundamental; indent-tabs-mode: t; -*- */
2 %{
3 
4 /*
5  * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
6  *
7  * Permission to use, copy, modify, and distribute this software for any
8  * purpose with or without fee is hereby granted, provided that the above
9  * copyright notice and this permission notice appear in all copies.
10  *
11  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18  */
19 
20 #include <err.h>
21 #include <stdio.h>
22 
23 #include "gmid.h"
24 
25 /*
26  * #define YYDEBUG 1
27  * int yydebug = 1;
28  */
29 
30 struct vhost *host = &hosts[0];
31 size_t ihost = 0;
32 
33 extern void yyerror(const char*);
34 
35 %}
36 
37 /* for bison: */
38 /* %define parse.error verbose */
39 
40 %union {
41 	char		*str;
42 	int		 num;
43 }
44 
45 %token TDAEMON TIPV6 TPORT TPROTOCOLS TMIME TDEFAULT TTYPE TSERVER
46 %token TCERT TKEY TROOT TCGI
47 %token TERR
48 
49 %token <str>	TSTRING
50 %token <num>	TNUM
51 %token <num>	TBOOL
52 
53 %%
54 
55 conf		: options vhosts ;
56 
57 options		: /* empty */
58 		| options option
59 		;
60 
61 option		: TDAEMON TBOOL		{ conf.foreground = !$2; }
62 		| TIPV6 TBOOL		{ conf.ipv6 = $2; }
63 		| TPORT TNUM		{ conf.port = $2; }
64 		| TPROTOCOLS TSTRING {
65 			if (tls_config_parse_protocols(&conf.protos, $2) == -1)
66 				errx(1, "invalid protocols string \"%s\"", $2);
67 		}
68 		| TMIME TSTRING TSTRING	{ add_mime($2, $3); }
69 		| TDEFAULT TTYPE TSTRING { set_default_mime($3); }
70 		;
71 
72 vhosts		: /* empty */
73 		| vhosts vhost
74 		;
75 
76 vhost		: TSERVER TSTRING '{' servopts '}' {
77 			host->domain = $2;
78 
79 			if (host->cert == NULL || host->key == NULL ||
80 			    host->dir == NULL)
81 				errx(1, "invalid vhost definition: %s", $2);
82 			if (++ihost == HOSTSLEN)
83 				errx(1, "too much vhosts defined");
84                         host++;
85 		}
86 		| error '}'		{ yyerror("error in server directive"); }
87 		;
88 
89 servopts	: /* empty */
90 		| servopts servopt
91 		;
92 
93 servopt		: TCERT TSTRING		{ host->cert = $2; }
94 		| TKEY TSTRING		{ host->key = $2; }
95 		| TROOT TSTRING		{ host->dir = $2; }
96 		| TCGI TSTRING		{
97 			host->cgi = $2;
98 			/* drop the starting '/', if any */
99 			if (*host->cgi == '/')
100 				host->cgi++;
101 }
102 		;
103