A strncmp implementation for userspace.

8643fbac · Silas Boyd-Wickizer · 8169285e · 8643fbac
--- a/ulib.c
+++ b/ulib.c
@@ -33,6 +33,16 @@ strcmp(const char *p, const char *q)
  return (u8)*p - (u8)*q;
 }

+int
+strncmp(const char *p, const char *q, u32 n)
+{
+  while(n > 0 && *p && *p == *q)
+    n--, p++, q++;
+  if(n == 0)
+    return 0;
+  return (u8)*p - (u8)*q;
+}
+
 unsigned int
 strlen(const char *s)
 {