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xxxxxxxxxxstatic void strncpy_alloc(char **str, size_t *alloc_len, size_t *offset, const char *src, size_t n, size_t limit)/*** Copyright (C) 2001-2025 Zabbix SIA**** This program is free software: you can redistribute it and/or modify it under the terms of** the GNU Affero General Public License as published by the Free Software Foundation, version 3.**** This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;** without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.** See the GNU Affero General Public License for more details.**** You should have received a copy of the GNU Affero General Public License along with this program.** If not, see <https://www.gnu.org/licenses/>.**/struct zbx_regexp{ pcre2_code *pcre2_regexp; pcre2_match_context *match_ctx;};typedef struct{ int rm_so; int rm_eo;}zbx_regmatch_t;/* Max number of supported capture groups in regular expressions. */ /* Group \0 contains the matching part of string, groups \1 ...\9 */ /* contain captured groups (substrings). */ZBX_PTR_VECTOR_IMPL(expression, zbx_expression_t *)typedef struct{ zbx_regmatch_t groups[ZBX_REGEXP_GROUPS_MAX];}zbx_match_t;ZBX_PTR_VECTOR_DECL(match, zbx_match_t *)ZBX_PTR_VECTOR_IMPL(match, zbx_match_t *)static void zbx_match_free(zbx_match_t *match){ zbx_free(match);}static char *decode_pcre2_compile_error(int error_code, PCRE2_SIZE error_offset, uint32_t flags){ /* 120 code units buffer is recommended in "man pcre2api" */ int ret;