SoW-2019-0002: Dynamic Snapshot

[lttng-tools.git] / src / lib / lttng-ctl / filter / filter-visitor-ir-validate-string.c

diff --git a/src/lib/lttng-ctl/filter/filter-visitor-ir-validate-string.c b/src/lib/lttng-ctl/filter/filter-visitor-ir-validate-string.c
deleted file mode 100644 (file)
index 1df83b0..0000000
--- a/src/lib/lttng-ctl/filter/filter-visitor-ir-validate-string.c
+++ /dev/null
@@ -1,124 +0,0 @@
-/*
- * filter-visitor-ir-validate-string.c
- *
- * LTTng filter IR validate string
- *
- * Copyright 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com>
- *
- * SPDX-License-Identifier: LGPL-2.1-only
- *
- */
-
-#include <stdio.h>
-#include <unistd.h>
-#include <string.h>
-#include <stdlib.h>
-#include <assert.h>
-#include <errno.h>
-#include <inttypes.h>
-
-#include <common/macros.h>
-
-#include "filter-ast.h"
-#include "filter-parser.h"
-#include "filter-ir.h"
-
-enum parse_char_result {
-       PARSE_CHAR_UNKNOWN = -2,
-       PARSE_CHAR_WILDCARD = -1,
-       PARSE_CHAR_NORMAL = 0,
-};
-
-static
-enum parse_char_result parse_char(const char **p)
-{
-       switch (**p) {
-       case '\\':
-               (*p)++;
-               switch (**p) {
-               case '\\':
-               case '*':
-                       return PARSE_CHAR_NORMAL;
-               default:
-                       return PARSE_CHAR_UNKNOWN;
-               }
-       case '*':
-               return PARSE_CHAR_WILDCARD;
-       default:
-               return PARSE_CHAR_NORMAL;
-       }
-}
-
-static
-int validate_string(struct ir_op *node)
-{
-       switch (node->op) {
-       case IR_OP_UNKNOWN:
-       default:
-               fprintf(stderr, "[error] %s: unknown op type\n", __func__);
-               return -EINVAL;
-
-       case IR_OP_ROOT:
-               return validate_string(node->u.root.child);
-       case IR_OP_LOAD:
-       {
-               int ret = 0;
-
-               if (node->data_type == IR_DATA_STRING) {
-                       const char *str;
-
-                       assert(node->u.load.u.string.value);
-                       str = node->u.load.u.string.value;
-
-                       for (;;) {
-                               enum parse_char_result res;
-
-                               if (!(*str)) {
-                                       break;
-                               }
-
-                               res = parse_char(&str);
-                               str++;
-
-                               switch (res) {
-                               case PARSE_CHAR_UNKNOWN:
-                                       ret = -EINVAL;
-                                       fprintf(stderr,
-                                               "Unsupported escape character detected.\n");
-                                       goto end_load;
-                               case PARSE_CHAR_NORMAL:
-                               default:
-                                       break;
-                               }
-                       }
-               }
-end_load:
-               return ret;
-       }
-       case IR_OP_UNARY:
-               return validate_string(node->u.unary.child);
-       case IR_OP_BINARY:
-       {
-               int ret = validate_string(node->u.binary.left);
-
-               if (ret)
-                       return ret;
-               return validate_string(node->u.binary.right);
-       }
-       case IR_OP_LOGICAL:
-       {
-               int ret;
-
-               ret = validate_string(node->u.logical.left);
-               if (ret)
-                       return ret;
-               return validate_string(node->u.logical.right);
-       }
-       }
-}
-
-LTTNG_HIDDEN
-int filter_visitor_ir_validate_string(struct filter_parser_ctx *ctx)
-{
-       return validate_string(ctx->ir_root);
-}