diff --git a/cfg/gnu.cfg b/cfg/gnu.cfg
index d612a8f68..f25176571 100644
--- a/cfg/gnu.cfg
+++ b/cfg/gnu.cfg
@@ -298,6 +298,104 @@
     </arg>
     <leak-ignore/>
   </function>
+  <!-- int inet_aton (const char *name, struct in_addr *addr); -->
+  <function name="inet_aton">
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-uninit/>
+      <not-null/>
+    </arg>
+    <arg nr="2">
+      <not-null/>
+    </arg>
+    <leak-ignore/>
+  </function>
+  <!-- uint32_t inet_addr (const char *name); -->
+  <function name="inet_addr">
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-uninit/>
+      <not-null/>
+    </arg>
+    <leak-ignore/>
+  </function>
+  <!-- uint32_t inet_network (const char *name); -->
+  <function name="inet_network">
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-uninit/>
+      <not-null/>
+    </arg>
+    <leak-ignore/>
+  </function>
+  <!-- char * inet_ntoa (struct in_addr addr); -->
+  <function name="inet_ntoa">
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+    <leak-ignore/>
+  </function>
+  <!-- struct in_addr inet_makeaddr (uint32_t net, uint32_t local); -->
+  <function name="inet_makeaddr">
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+    <arg nr="2">
+      <not-uninit/>
+    </arg>
+    <leak-ignore/>
+  </function>
+  <!-- uint32_t inet_lnaof (struct in_addr addr); -->
+  <function name="inet_lnaof">
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+    <leak-ignore/>
+  </function>
+  <!-- uint32_t inet_netof (struct in_addr addr); -->
+  <function name="inet_netof">
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+    <leak-ignore/>
+  </function>
+  <!-- int inet_pton (int af, const char *cp, void *buf); -->
+  <function name="inet_pton">
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+    <arg nr="2">
+      <not-uninit/>
+      <not-null/>
+    </arg>
+    <arg nr="3">
+      <not-null/>
+    </arg>
+    <leak-ignore/>
+  </function>
+  <!-- const char * inet_ntop (int af, const void *cp, char *buf, socklen_t len);-->
+  <function name="inet_ntop">
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+    <arg nr="2">
+      <not-uninit/>
+      <not-null/>
+    </arg>
+    <arg nr="3">
+      <not-null/>
+    </arg>
+    <arg nr="4">
+      <not-uninit/>
+    </arg>
+    <leak-ignore/>
+  </function>
   <!-- see https://gcc.gnu.org/onlinedocs/gcc/Other-Builtins.html -->
   <define name="__builtin_expect(X,Y)" value="(X)"/>
   <!-- see http://kernelnewbies.org/FAQ/LikelyUnlikely -->