1 files changed, 41 insertions, 1 deletions
diff --git a/lib/frrstr.c b/lib/frrstr.c
index fd337073f8..c575c0b568 100644
--- a/lib/frrstr.c
+++ b/lib/frrstr.c
@@ -152,7 +152,33 @@ void frrstr_strvec_free(vector v)
 	vector_free(v);
 }
 
-bool begins_with(const char *str, const char *prefix)
+char *frrstr_replace(const char *str, const char *find, const char *replace)
+{
+	char *ch;
+	char *nustr = XSTRDUP(MTYPE_TMP, str);
+
+	size_t findlen = strlen(find);
+	size_t repllen = strlen(replace);
+
+	while ((ch = strstr(nustr, find))) {
+		if (repllen > findlen) {
+			size_t nusz = strlen(nustr) + repllen - findlen + 1;
+			nustr = XREALLOC(MTYPE_TMP, nustr, nusz);
+			ch = strstr(nustr, find);
+		}
+
+		size_t nustrlen = strlen(nustr);
+		size_t taillen = (nustr + nustrlen) - (ch + findlen);
+
+		memmove(ch + findlen + (repllen - findlen), ch + findlen,
+			taillen + 1);
+		memcpy(ch, replace, repllen);
+	}
+
+	return nustr;
+}
+
+bool frrstr_startswith(const char *str, const char *prefix)
 {
 	if (!str || !prefix)
 		return false;
@@ -166,6 +192,20 @@ bool begins_with(const char *str, const char *prefix)
 	return strncmp(str, prefix, lenprefix) == 0;
 }
 
+bool frrstr_endswith(const char *str, const char *suffix)
+{
+	if (!str || !suffix)
+		return false;
+
+	size_t lenstr = strlen(str);
+	size_t lensuffix = strlen(suffix);
+
+	if (lensuffix > lenstr)
+		return false;
+
+	return strncmp(&str[lenstr - lensuffix], suffix, lensuffix) == 0;
+}
+
 int all_digit(const char *str)
 {
 	for (; *str != '\0'; str++)