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> | |
16 | #include <assert.h> | |
953192ba | 17 | #include <inttypes.h> |
edf4b93e MJ |
18 | |
19 | #include <common/compat/errno.h> | |
20 | ||
953192ba | 21 | #include "filter-ast.h" |
95b9bd90 | 22 | #include "filter-parser.h" |
953192ba MD |
23 | #include "filter-ir.h" |
24 | ||
25 | static | |
26 | int check_bin_comparator(struct ir_op *node) | |
27 | { | |
28 | switch (node->op) { | |
29 | case IR_OP_UNKNOWN: | |
30 | default: | |
31 | fprintf(stderr, "[error] %s: unknown op type\n", __func__); | |
32 | return -EINVAL; | |
33 | ||
34 | case IR_OP_ROOT: | |
35 | return check_bin_comparator(node->u.root.child); | |
36 | case IR_OP_LOAD: | |
37 | return 0; | |
38 | case IR_OP_UNARY: | |
39 | return check_bin_comparator(node->u.unary.child); | |
40 | case IR_OP_BINARY: | |
41 | { | |
42 | int ret; | |
43 | ||
44 | if (node->u.binary.left->data_type == IR_DATA_STRING | |
45 | || node->u.binary.right->data_type | |
46 | == IR_DATA_STRING) { | |
47 | if (node->u.binary.type != AST_OP_EQ | |
48 | && node->u.binary.type != AST_OP_NE) { | |
49 | fprintf(stderr, "[error] Only '==' and '!=' comparators are allowed for strings\n"); | |
50 | return -EINVAL; | |
51 | } | |
52 | } | |
53 | ||
54 | ret = check_bin_comparator(node->u.binary.left); | |
55 | if (ret) | |
56 | return ret; | |
57 | return check_bin_comparator(node->u.binary.right); | |
58 | } | |
59 | case IR_OP_LOGICAL: | |
60 | { | |
61 | int ret; | |
62 | ||
63 | ret = check_bin_comparator(node->u.logical.left); | |
64 | if (ret) | |
65 | return ret; | |
66 | return check_bin_comparator(node->u.logical.right); | |
67 | } | |
68 | } | |
69 | } | |
70 | ||
71 | int filter_visitor_ir_check_binary_comparator(struct filter_parser_ctx *ctx) | |
72 | { | |
73 | return check_bin_comparator(ctx->ir_root); | |
74 | } |