diff --git a/cfg/posix.cfg b/cfg/posix.cfg
index 2c8f930ca..cc1027d0c 100644
--- a/cfg/posix.cfg
+++ b/cfg/posix.cfg
@@ -786,7 +786,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <arg nr="1">
       <not-uninit/>
     </arg>
-    <arg nr="2">
+    <arg nr="2" direction="in">
       <not-uninit/>
       <not-bool/>
       <valid>0:</valid>
@@ -797,11 +797,11 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <noreturn>false</noreturn>
     <returnValue type="int"/>
     <leak-ignore/>
-    <arg nr="1">
+    <arg nr="1" direction="in">
       <not-null/>
       <not-uninit/>
     </arg>
-    <arg nr="2">
+    <arg nr="2" direction="in">
       <not-uninit/>
       <not-bool/>
     </arg>
@@ -811,7 +811,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <noreturn>false</noreturn>
     <leak-ignore/>
     <returnValue type="int"/>
-    <arg nr="1">
+    <arg nr="1" direction="in">
       <not-null/>
       <not-uninit/>
       <not-bool/>
@@ -822,7 +822,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <noreturn>false</noreturn>
     <leak-ignore/>
     <returnValue type="int"/>
-    <arg nr="1">
+    <arg nr="1" direction="in">
       <not-null/>
       <not-uninit/>
       <not-bool/>
@@ -833,7 +833,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <noreturn>false</noreturn>
     <leak-ignore/>
     <returnValue type="int"/>
-    <arg nr="1">
+    <arg nr="1" direction="in">
       <not-null/>
       <not-uninit/>
       <not-bool/>
@@ -844,11 +844,11 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <noreturn>false</noreturn>
     <leak-ignore/>
     <returnValue type="int"/>
-    <arg nr="1">
+    <arg nr="1" direction="in">
       <not-null/>
       <not-uninit/>
     </arg>
-    <arg nr="2">
+    <arg nr="2" direction="in">
       <not-null/>
       <not-uninit/>
       <not-bool/>
@@ -915,7 +915,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
       <not-null/>
       <not-uninit/>
     </arg>
-    <arg nr="2">
+    <arg nr="2" direction="in">
       <not-uninit/>
       <not-bool/>
     </arg>
@@ -925,10 +925,10 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <noreturn>false</noreturn>
     <leak-ignore/>
     <returnValue type="int"/>
-    <arg nr="1">
+    <arg nr="1" direction="in">
       <not-uninit/>
     </arg>
-    <arg nr="2">
+    <arg nr="2" direction="in">
       <not-uninit/>
       <not-bool/>
     </arg>
@@ -942,10 +942,10 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
       <not-null/>
       <not-uninit/>
     </arg>
-    <arg nr="2">
+    <arg nr="2" direction="in">
       <not-uninit/>
     </arg>
-    <arg nr="3">
+    <arg nr="3" direction="in">
       <not-uninit/>
       <not-bool/>
     </arg>
@@ -959,10 +959,10 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
       <not-null/>
       <not-uninit/>
     </arg>
-    <arg nr="2">
+    <arg nr="2" direction="in">
       <not-uninit/>
     </arg>
-    <arg nr="3">
+    <arg nr="3" direction="in">
       <not-uninit/>
       <not-bool/>
     </arg>
@@ -972,13 +972,13 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <noreturn>false</noreturn>
     <leak-ignore/>
     <returnValue type="int"/>
-    <arg nr="1">
+    <arg nr="1" direction="in">
       <not-uninit/>
     </arg>
-    <arg nr="2">
+    <arg nr="2" direction="in">
       <not-uninit/>
     </arg>
-    <arg nr="3">
+    <arg nr="3" direction="in">
       <not-uninit/>
       <not-bool/>
     </arg>
@@ -1142,10 +1142,10 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <noreturn>false</noreturn>
     <leak-ignore/>
     <returnValue type="long int"/>
-    <arg nr="1">
+    <arg nr="1" direction="in">
       <not-uninit/>
     </arg>
-    <arg nr="2">
+    <arg nr="2" direction="in">
       <not-uninit/>
       <not-bool/>
     </arg>
@@ -1159,7 +1159,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
       <not-null/>
       <not-uninit/>
     </arg>
-    <arg nr="2">
+    <arg nr="2" direction="in">
       <not-uninit/>
       <not-bool/>
     </arg>
@@ -1169,7 +1169,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <noreturn>false</noreturn>
     <leak-ignore/>
     <returnValue type="long int"/>
-    <arg nr="1">
+    <arg nr="1" direction="in">
       <not-uninit/>
       <not-bool/>
     </arg>
@@ -1179,7 +1179,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <use-retval/>
     <returnValue type="FILE *"/>
     <noreturn>false</noreturn>
-    <arg nr="1">
+    <arg nr="1" direction="in">
       <not-uninit/>
     </arg>
     <arg nr="2">