Commit | Line | Data |
---|---|---|
953192ba MD |
1 | /* |
2 | * filter-visitor-ir-check-binary-comparator.c | |
3 | * | |
4 | * LTTng filter IR check binary comparator | |
5 | * | |
ab5be9fa | 6 | * Copyright 2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
953192ba | 7 | * |
ab5be9fa | 8 | * SPDX-License-Identifier: LGPL-2.1-only |
953192ba | 9 | * |
953192ba MD |
10 | */ |
11 | ||
12 | #include <stdio.h> | |
13 | #include <unistd.h> | |
14 | #include <string.h> | |
15 | #include <stdlib.h> | |
953192ba | 16 | #include <inttypes.h> |
edf4b93e MJ |
17 | |
18 | #include <common/compat/errno.h> | |
19 | ||
953192ba | 20 | #include "filter-ast.h" |
348ddc5c | 21 | #include "filter-parser.hpp" |
953192ba MD |
22 | #include "filter-ir.h" |
23 | ||
24 | static | |
25 | int check_bin_comparator(struct ir_op *node) | |
26 | { | |
27 | switch (node->op) { | |
28 | case IR_OP_UNKNOWN: | |
29 | default: | |
30 | fprintf(stderr, "[error] %s: unknown op type\n", __func__); | |
31 | return -EINVAL; | |
32 | ||
33 | case IR_OP_ROOT: | |
34 | return check_bin_comparator(node->u.root.child); | |
35 | case IR_OP_LOAD: | |
36 | return 0; | |
37 | case IR_OP_UNARY: | |
38 | return check_bin_comparator(node->u.unary.child); | |
39 | case IR_OP_BINARY: | |
40 | { | |
41 | int ret; | |
42 | ||
43 | if (node->u.binary.left->data_type == IR_DATA_STRING | |
44 | || node->u.binary.right->data_type | |
45 | == IR_DATA_STRING) { | |
46 | if (node->u.binary.type != AST_OP_EQ | |
47 | && node->u.binary.type != AST_OP_NE) { | |
48 | fprintf(stderr, "[error] Only '==' and '!=' comparators are allowed for strings\n"); | |
49 | return -EINVAL; | |
50 | } | |
51 | } | |
52 | ||
53 | ret = check_bin_comparator(node->u.binary.left); | |
54 | if (ret) | |
55 | return ret; | |
56 | return check_bin_comparator(node->u.binary.right); | |
57 | } | |
58 | case IR_OP_LOGICAL: | |
59 | { | |
60 | int ret; | |
61 | ||
62 | ret = check_bin_comparator(node->u.logical.left); | |
63 | if (ret) | |
64 | return ret; | |
65 | return check_bin_comparator(node->u.logical.right); | |
66 | } | |
67 | } | |
68 | } | |
69 | ||
70 | int filter_visitor_ir_check_binary_comparator(struct filter_parser_ctx *ctx) | |
71 | { | |
72 | return check_bin_comparator(ctx->ir_root); | |
73 | } |