From 24cc949f1405b0d9e0be26848168fd3df52bf6d3 Mon Sep 17 00:00:00 2001
From: Luca Deri <deri@ntop.org>
Date: Sat, 22 Oct 2022 10:06:09 +0200
Subject: Enhanced HTTP numeric IP check

---
 src/lib/ndpi_utils.c | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

(limited to 'src/lib/ndpi_utils.c')

diff --git a/src/lib/ndpi_utils.c b/src/lib/ndpi_utils.c
index ef212cc5f..255a1fa8e 100644
--- a/src/lib/ndpi_utils.c
+++ b/src/lib/ndpi_utils.c
@@ -2835,3 +2835,32 @@ int64_t ndpi_asn1_ber_decode_length(const unsigned char *payload, int payload_le
   (*value_len) += 1;
   return value;
 }
+
+/* ******************************************* */
+
+char* ndpi_intoav4(unsigned int addr, char* buf, u_int16_t bufLen) {
+  char *cp;
+  int n;
+
+  cp = &buf[bufLen];
+  *--cp = '\0';
+
+  n = 4;
+  do {
+    u_int byte = addr & 0xff;
+
+    *--cp = byte % 10 + '0';
+    byte /= 10;
+    if(byte > 0) {
+      *--cp = byte % 10 + '0';
+      byte /= 10;
+      if(byte > 0)
+	*--cp = byte + '0';
+    }
+    if(n > 1)
+      *--cp = '.';
+    addr >>= 8;
+  } while (--n > 0);
+
+  return(cp);
+}
-- 
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