Added ndpi_str_endswith()

src/include/ndpi_api.h

@@ -1775,7 +1775,7 @@ extern "C" {
 
   u_int ndpi_hex2bin(u_char *out, u_int out_len, u_char* in, u_int in_len);
   u_int ndpi_bin2hex(u_char *out, u_int out_len, u_char* in, u_int in_len);
-  
+
   /* ******************************* */
 
   int ndpi_des_init(struct ndpi_des_struct *des, double alpha, double beta, float significance);
@@ -2301,6 +2301,7 @@ extern "C" {
   int ndpi_snprintf(char * str, size_t size, char const * format, ...);
   struct tm *ndpi_gmtime_r(const time_t *timep, struct tm *result);
   char* ndpi_strrstr(const char *haystack, const char *needle);
+  int ndpi_str_endswith(const char *s, const char *suffix);
 
   /* ******************************* */
 
@@ -2322,16 +2323,16 @@ extern "C" {
 			   u_int16_t cleartext_msg_len,
 			   u_int16_t *encrypted_msg_len,
 			   u_char encrypt_key[64]);
-  
+
   char* ndpi_quick_decrypt(const char *encrypted_msg,
 			   u_int16_t encrypted_msg_len,
 			   u_int16_t *decrypted_msg_len,
 			   u_char decrypt_key[64]);
- 
+
   /* ******************************* */
 
   const char* ndpi_print_os_hint(u_int8_t os_hint);
-  
+
   /* ******************************* */
 
   bool ndpi_serialize_flow_fingerprint(struct ndpi_detection_module_struct *ndpi_str,
@@ -2348,7 +2349,7 @@ extern "C" {
 				 u_int32_t epoch_now, u_int32_t ttl);
   bool ndpi_address_cache_dump(struct ndpi_address_cache *cache, char *path, u_int32_t epoch_now);
   u_int32_t ndpi_address_cache_restore(struct ndpi_address_cache *cache, char *path, u_int32_t epoch_now);
-  
+
 
   bool ndpi_cache_address(struct ndpi_detection_module_struct *ndpi_struct,
 			ndpi_ip_addr_t ip_addr, char *hostname,
@@ -2357,7 +2358,7 @@ extern "C" {
   bool ndpi_cache_address_dump(struct ndpi_detection_module_struct *ndpi_struct, char *path, u_int32_t epoch_now);
   u_int32_t ndpi_cache_address_restore(struct ndpi_detection_module_struct *ndpi_struct, char *path, u_int32_t epoch_now);
   u_int32_t ndpi_cache_address_flush_expired(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t epoch_now);
-  
+
   /* ******************************* */
 
   const char *ndpi_lru_cache_idx_to_name(lru_cache_type idx);

src/lib/ndpi_utils.c

@@ -1272,7 +1272,7 @@ int ndpi_dpi2json(struct ndpi_detection_module_struct *ndpi_struct,
     ndpi_serialize_string_string(serializer, "hostname", host_server_name);
     ndpi_serialize_string_string(serializer, "domainame", ndpi_get_host_domain(ndpi_struct, host_server_name));
   }
-  
+
   switch(l7_protocol.proto.master_protocol ? l7_protocol.proto.master_protocol : l7_protocol.proto.app_protocol) {
   case NDPI_PROTOCOL_IP_ICMP:
     if(flow->entropy > 0.0f) {
@@ -1654,7 +1654,7 @@ int ndpi_flow2json(struct ndpi_detection_module_struct *ndpi_struct,
 
   if(flow->tcp.fingerprint)
     ndpi_serialize_string_string(serializer, "tcp_fingerprint", flow->tcp.fingerprint);
-  
+
   ndpi_serialize_string_string(serializer, "proto",
 			       ndpi_get_ip_proto_name(l4_protocol, l4_proto_name, sizeof(l4_proto_name)));
 
@@ -3494,6 +3494,15 @@ char* ndpi_strrstr(const char *haystack, const char *needle) {
   return (char*) last_occurrence;
 }
 
+/* ************************************************************** */
+
+int ndpi_str_endswith(const char *s, const char *suffix) {
+  size_t slen = strlen(s);
+  size_t suffixlen = strlen(suffix);
+
+  return((slen >= suffixlen) && (!memcmp(&s[slen - suffixlen], suffix, suffixlen)));
+}
+
 /* ******************************************* */
 
 const char *ndpi_lru_cache_idx_to_name(lru_cache_type idx)
@@ -3708,7 +3717,7 @@ u_int ndpi_hex2bin(u_char *out, u_int out_len, u_char* in, u_int in_len) {
 
   if(((in_len+1) / 2) > out_len)
     return(0);
-	   
+
   for(i=0, j=0; i<in_len; i += 2, j++) {
     char buf[3];
 
@@ -3784,7 +3793,7 @@ char* ndpi_quick_encrypt(const char *cleartext_msg,
   ndpi_free(encoded_buf);
 
   *encrypted_msg_len = strlen(encoded);
-  
+
   return(encoded);
 }
 
@@ -3803,7 +3812,7 @@ char* ndpi_quick_decrypt(const char *encrypted_msg,
   struct AES_ctx ctx;
 
   *decrypted_msg_len = 0;
-  
+
   if(decoded_string == NULL) {
     /* Allocation failure */
     return(NULL);
@@ -3839,7 +3848,7 @@ char* ndpi_quick_decrypt(const char *encrypted_msg,
   }
 
   *decrypted_msg_len = content_len;
-    
+
   ndpi_free(content);
 
   return(decoded_string);
@@ -3849,7 +3858,7 @@ char* ndpi_quick_decrypt(const char *encrypted_msg,
 
 const char* ndpi_print_os_hint(u_int8_t os_hint) {
   switch(os_hint) {
-  case os_hint_windows:          return("Windows");     
+  case os_hint_windows:          return("Windows");
   case os_hint_macos:            return("macOS");
   case os_hint_ios_ipad_os:      return("iOS/iPad");
   case os_hint_android:          return("Android");