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Commit | Line | Data |
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86e4d161 | 1 | %{ |
86e4d161 MS |
2 | |
3 | #include <err.h> | |
4 | #include <string.h> | |
b73b879e | 5 | #include <syslog.h> |
86e4d161 MS |
6 | #include "dma.h" |
7 | ||
8 | extern int yylineno; | |
65bec70e | 9 | static void yyerror(const char *); |
86e4d161 | 10 | |
65bec70e | 11 | static void |
86e4d161 MS |
12 | yyerror(const char *msg) |
13 | { | |
b73b879e SS |
14 | /** |
15 | * Because we do error '\n' below, we need to report the error | |
16 | * one line above of what yylineno points to. | |
17 | */ | |
18 | syslog(LOG_CRIT, "aliases line %d: %s", yylineno - 1, msg); | |
19 | fprintf(stderr, "aliases line %d: %s\n", yylineno - 1, msg); | |
86e4d161 MS |
20 | } |
21 | ||
22 | int | |
23 | yywrap(void) | |
24 | { | |
25 | return (1); | |
26 | } | |
27 | ||
28 | %} | |
29 | ||
30 | %union { | |
31 | char *ident; | |
32 | struct stritem *strit; | |
33 | struct alias *alias; | |
34 | } | |
35 | ||
36 | %token <ident> T_IDENT | |
37 | %token T_ERROR | |
38 | %token T_EOF 0 | |
39 | ||
40 | %type <strit> dests | |
41 | %type <alias> alias aliases | |
42 | ||
43 | %% | |
44 | ||
45 | start : aliases T_EOF | |
46 | { | |
47 | LIST_FIRST(&aliases) = $1; | |
48 | } | |
49 | ||
50 | aliases : /* EMPTY */ | |
51 | { | |
52 | $$ = NULL; | |
53 | } | |
54 | | alias aliases | |
55 | { | |
56 | if ($2 != NULL && $1 != NULL) | |
57 | LIST_INSERT_AFTER($2, $1, next); | |
58 | else if ($2 == NULL) | |
59 | $2 = $1; | |
60 | $$ = $2; | |
61 | } | |
62 | ; | |
63 | ||
64 | alias : T_IDENT ':' dests '\n' | |
65 | { | |
66 | struct alias *al; | |
67 | ||
68 | if ($1 == NULL) | |
69 | YYABORT; | |
70 | al = calloc(1, sizeof(*al)); | |
71 | if (al == NULL) | |
72 | YYABORT; | |
73 | al->alias = $1; | |
74 | SLIST_FIRST(&al->dests) = $3; | |
75 | $$ = al; | |
76 | } | |
77 | | error '\n' | |
78 | { | |
b73b879e | 79 | YYABORT; |
86e4d161 MS |
80 | } |
81 | ; | |
82 | ||
83 | dests : T_IDENT | |
84 | { | |
85 | struct stritem *it; | |
86 | ||
87 | if ($1 == NULL) | |
88 | YYABORT; | |
89 | it = calloc(1, sizeof(*it)); | |
90 | if (it == NULL) | |
91 | YYABORT; | |
92 | it->str = $1; | |
93 | $$ = it; | |
94 | } | |
95 | | T_IDENT ',' dests | |
96 | { | |
97 | struct stritem *it; | |
98 | ||
99 | if ($1 == NULL) | |
100 | YYABORT; | |
101 | it = calloc(1, sizeof(*it)); | |
102 | if (it == NULL) | |
103 | YYABORT; | |
104 | it->str = $1; | |
105 | SLIST_NEXT(it, next) = $3; | |
106 | $$ = it; | |
107 | } | |
108 | ; | |
109 | ||
110 | %% |