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-rw-r--r--lib/frrstr.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/frrstr.c b/lib/frrstr.c
index d003590ba6..1f0849566a 100644
--- a/lib/frrstr.c
+++ b/lib/frrstr.c
@@ -158,3 +158,11 @@ bool begins_with(const char *str, const char *prefix)
return strncmp(str, prefix, lenprefix) == 0;
}
+
+int all_digit(const char *str)
+{
+ for (; *str != '\0'; str++)
+ if (!isdigit((int)*str))
+ return 0;
+ return 1;
+}