lib: replace begins_with, add frrstr_endswith

* Change 'begins_with' to 'frrstr_startswith' for consistency
* Add suffix checker, frrstr_endswith()
* Update vtysh to use the new function

Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>

1 files changed, 15 insertions, 1 deletions

diff --git a/lib/frrstr.c b/lib/frrstr.c
index fbbc890ec6..c575c0b568 100644
--- a/lib/frrstr.c
+++ b/lib/frrstr.c
@@ -178,7 +178,7 @@ char *frrstr_replace(const char *str, const char *find, const char *replace)
 	return nustr;
 }
 
-bool begins_with(const char *str, const char *prefix)
+bool frrstr_startswith(const char *str, const char *prefix)
 {
 	if (!str || !prefix)
 		return false;
@@ -192,6 +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++)