Import Upstream version 1.7.2

2025-08-06 17:45:07 +02:00
commit 8035530473
75 changed files with 33406 additions and 0 deletions
--- a/anacron/matchrx.c
+++ b/anacron/matchrx.c
@@ -0,0 +1,92 @@
+/*
+    Anacron - run commands periodically
+    Copyright (C) 1998  Itai Tzur <itzur@actcom.co.il>
+    Copyright (C) 1999  Sean 'Shaleh' Perry <shaleh@debian.org>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    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 General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ 
+    The GNU General Public License can also be found in the file
+    `COPYING' that comes with the Anacron source distribution.
+*/
+
+
+#include <stdio.h>
+#include <regex.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#include "matchrx.h"
+
+int
+match_rx(const char *rx, char *string, unsigned int n_sub,  /* char **substrings */...)
+/* Return 1 if the regular expression "*rx" matches the string "*string",
+ * 0 if not, -1 on error.
+ * "Extended" regular expressions are used.
+ * Additionally, there should be "n_sub" "substrings" arguments.  These,
+ * if not NULL, and if the match succeeds are set to point to the 
+ * corresponding substrings of the regexp.
+ * The original string is changed, and the substrings must not overlap,
+ * or even be directly adjacent.
+ * This is not the most efficient, or elegant way of doing this.
+ */
+{
+	int r;
+	unsigned int n;
+	regex_t crx;
+	va_list va;
+	char **substring;
+	regmatch_t *sub_offsets;
+
+	sub_offsets = malloc(sizeof(regmatch_t) * (n_sub + 1));
+	if (sub_offsets == NULL)
+	    return -1;
+	memset(sub_offsets, 0, sizeof(regmatch_t) * (n_sub + 1));
+
+	if (regcomp(&crx, rx, REG_EXTENDED)) {
+	    free(sub_offsets);
+	    return -1;
+	}
+	r = regexec(&crx, string, n_sub + 1, sub_offsets, 0);
+	if (r != 0 && r != REG_NOMATCH) {
+	   free(sub_offsets);
+	   return -1;
+	}
+	regfree(&crx);
+	if (r == REG_NOMATCH) {
+	    free(sub_offsets);
+	    return 0;
+	}
+
+	va_start(va, n_sub);
+	n = 1;
+	while (n <= n_sub)
+	{
+		substring = va_arg(va, char**);
+		if (substring != NULL)
+		{
+			if (sub_offsets[n].rm_so == -1) {
+			    va_end(va);
+			    free(sub_offsets);
+			    return - 1;
+			}
+			*substring = string + sub_offsets[n].rm_so;
+			*(string + sub_offsets[n].rm_eo) = 0;
+		}
+		n++;
+	}
+	va_end(va);
+	free(sub_offsets);
+	return 1;
+}