1 files changed, 103 insertions, 0 deletions
diff --git a/lib/utils.c b/lib/utils.c
new file mode 100644
index 0000000..bddeb87
--- /dev/null
+++ b/lib/utils.c
@@ -0,0 +1,103 @@
+/* Copyright 2007-20010 Jozsef Kadlecsik (kadlec@blackhole.kfki.hu)
+ *
+ * This program is free software; you can redistribute it and/or modify   
+ * it under the terms of the GNU General Public License version 2 as 
+ * published by the Free Software Foundation.
+ */
+#include <assert.h>				/* assert */
+#include <stdbool.h>				/* bool */
+#include <stdlib.h>				/* malloc, free */
+#include <string.h>				/* memset, str* */
+
+#include <libipset/session.h>			/* ipset_err */
+#include <libipset/utils.h>			/* prototypes */
+
+/**
+ * ipset_strchr - locate character(s) in string
+ * @str: string to locate the character(s) in
+ * @sep: string of characters to locate
+ *
+ * Return a pointer to the first occurence of any of the
+ * characters to be located in the string. NULL is returned
+ * if no character is found.
+ */
+char *
+ipset_strchr(const char *str, const char *sep)
+{
+	char *match;
+	
+	assert(str);
+	assert(sep);
+	
+	for (; *sep != '\0'; sep++)
+		if ((match = strchr(str, (int)sep[0])) != NULL)
+			return match;
+	
+	return NULL;
+}
+
+/**
+ * ipset_name_match - match a string against an array of strings
+ * @arg: string
+ * @name: array of strings, last one is a NULL pointer
+ *
+ * Return true if arg matches any of the strings in the array.
+ */
+bool
+ipset_name_match(const char *arg, const char * const name[])
+{
+	int i = 0;
+	
+	assert(arg);
+	assert(name);
+	
+	while (name[i]) {
+		if (STREQ(arg, name[i]))
+			return true;
+		i++;
+	}
+	
+	return false;
+}
+
+/**
+ * ipset_shift_argv - shift off an argument
+ * @arc: argument count
+ * @argv: array of argument strings
+ * @from: from where shift off an argument
+ *
+ * Shift off the argument at "from" from the array of
+ * arguments argv of size argc.
+ */
+void
+ipset_shift_argv(int *argc, char *argv[], int from)
+{
+	int i;
+	
+	assert(*argc >= from + 1);
+
+	for (i = from + 1; i <= *argc; i++) {
+		argv[i-1] = argv[i];
+	}
+	(*argc)--;
+	return;
+}
+
+/**
+ * ipset_strncpy - copy the string from src to dst
+ * @dst: the target string buffer
+ * @src: the source string buffer
+ * @len: the length of bytes to copy, including the terminating null byte.
+ *
+ * Copy the string from src to destination, but at most len bytes are
+ * copied. The target is unconditionally terminated by the null byte.
+ */
+void
+ipset_strncpy(char *dst, const char *src, size_t len)
+{
+	assert(dst);
+	assert(src);
+
+	strncpy(dst, src, len);
+	dst[len - 1] = '\0';
+}