From be1c7e50e1e8809ea56f2c9d472eccd8ffd73a97 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 04:57:58 +0200 Subject: Adding upstream version 1.44.3. Signed-off-by: Daniel Baumann --- collectors/log2journal/log2journal-pattern.c | 54 ++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 collectors/log2journal/log2journal-pattern.c (limited to 'collectors/log2journal/log2journal-pattern.c') diff --git a/collectors/log2journal/log2journal-pattern.c b/collectors/log2journal/log2journal-pattern.c new file mode 100644 index 00000000..4b7e9026 --- /dev/null +++ b/collectors/log2journal/log2journal-pattern.c @@ -0,0 +1,54 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +#include "log2journal.h" + +void search_pattern_cleanup(SEARCH_PATTERN *sp) { + if(sp->pattern) { + freez((void *)sp->pattern); + sp->pattern = NULL; + } + + if(sp->re) { + pcre2_code_free(sp->re); + sp->re = NULL; + } + + if(sp->match_data) { + pcre2_match_data_free(sp->match_data); + sp->match_data = NULL; + } + + txt_cleanup(&sp->error); +} + +static void pcre2_error_message(SEARCH_PATTERN *sp, int rc, int pos) { + char msg[1024]; + pcre2_get_error_in_buffer(msg, sizeof(msg), rc, pos); + txt_replace(&sp->error, msg, strlen(msg)); +} + +static inline bool compile_pcre2(SEARCH_PATTERN *sp) { + int error_number; + PCRE2_SIZE error_offset; + PCRE2_SPTR pattern_ptr = (PCRE2_SPTR)sp->pattern; + + sp->re = pcre2_compile(pattern_ptr, PCRE2_ZERO_TERMINATED, 0, &error_number, &error_offset, NULL); + if (!sp->re) { + pcre2_error_message(sp, error_number, (int) error_offset); + return false; + } + + return true; +} + +bool search_pattern_set(SEARCH_PATTERN *sp, const char *search_pattern, size_t search_pattern_len) { + search_pattern_cleanup(sp); + + sp->pattern = strndupz(search_pattern, search_pattern_len); + if (!compile_pcre2(sp)) + return false; + + sp->match_data = pcre2_match_data_create_from_pattern(sp->re, NULL); + + return true; +} -- cgit v1.2.3