| 1 | /* |
| 2 | * filter-visitor-ir-normalize-glob-patterns.c |
| 3 | * |
| 4 | * LTTng filter IR normalize string |
| 5 | * |
| 6 | * Copyright 2017 Philippe Proulx <pproulx@efficios.com> |
| 7 | * |
| 8 | * SPDX-License-Identifier: LGPL-2.1-only |
| 9 | * |
| 10 | */ |
| 11 | |
| 12 | #include "filter-ast.hpp" |
| 13 | #include "filter-ir.hpp" |
| 14 | #include "filter-parser.hpp" |
| 15 | |
| 16 | #include <common/compat/errno.hpp> |
| 17 | #include <common/macros.hpp> |
| 18 | #include <common/string-utils/string-utils.hpp> |
| 19 | |
| 20 | #include <inttypes.h> |
| 21 | #include <stdio.h> |
| 22 | #include <stdlib.h> |
| 23 | #include <string.h> |
| 24 | #include <unistd.h> |
| 25 | |
| 26 | static int normalize_glob_patterns(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 normalize_glob_patterns(node->u.root.child); |
| 36 | case IR_OP_LOAD: |
| 37 | { |
| 38 | if (node->data_type == IR_DATA_STRING) { |
| 39 | enum ir_load_string_type type = node->u.load.u.string.type; |
| 40 | if (type == IR_LOAD_STRING_TYPE_GLOB_STAR_END || |
| 41 | type == IR_LOAD_STRING_TYPE_GLOB_STAR) { |
| 42 | LTTNG_ASSERT(node->u.load.u.string.value); |
| 43 | strutils_normalize_star_glob_pattern(node->u.load.u.string.value); |
| 44 | } |
| 45 | } |
| 46 | |
| 47 | return 0; |
| 48 | } |
| 49 | case IR_OP_UNARY: |
| 50 | return normalize_glob_patterns(node->u.unary.child); |
| 51 | case IR_OP_BINARY: |
| 52 | { |
| 53 | int ret = normalize_glob_patterns(node->u.binary.left); |
| 54 | |
| 55 | if (ret) |
| 56 | return ret; |
| 57 | return normalize_glob_patterns(node->u.binary.right); |
| 58 | } |
| 59 | case IR_OP_LOGICAL: |
| 60 | { |
| 61 | int ret; |
| 62 | |
| 63 | ret = normalize_glob_patterns(node->u.logical.left); |
| 64 | if (ret) |
| 65 | return ret; |
| 66 | return normalize_glob_patterns(node->u.logical.right); |
| 67 | } |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | /* |
| 72 | * This function normalizes all the globbing literal strings with |
| 73 | * utils_normalize_glob_pattern(). See the documentation of |
| 74 | * utils_normalize_glob_pattern() for more details. |
| 75 | */ |
| 76 | int filter_visitor_ir_normalize_glob_patterns(struct filter_parser_ctx *ctx) |
| 77 | { |
| 78 | return normalize_glob_patterns(ctx->ir_root); |
| 79 | } |