gnu.cfg: Added support for gethostbyname_r() and gethostbyname2_r()

cfg/gnu.cfg

@@ -530,6 +530,114 @@
     </arg>
     <leak-ignore/>
   </function>
+  <!-- https://man7.org/linux/man-pages/man3/gethostbyaddr_r.3.html -->
+  <!-- int gethostbyaddr_r(const void *addr, socklen_t len, int type, struct hostent *restrict ret, char *restrict buf, size_t buflen, struct hostent **restrict result, int *restrict h_errnop); -->
+  <function name="gethostbyaddr_r">
+    <returnValue type="int"/>
+    <noreturn>false</noreturn>
+    <use-retval/>
+    <pure/>
+    <arg nr="1" direction="in">
+      <not-uninit/>
+      <not-null/>
+    </arg>
+    <arg nr="2" direction="in">
+      <not-uninit/>
+      <valid>0:</valid>
+    </arg>
+    <arg nr="3" direction="in">
+      <not-uninit/>
+    </arg>
+    <arg nr="4" direction="out">
+      <not-null/>
+    </arg>
+    <arg nr="5" direction="in">
+      <not-uninit/>
+      <not-null/>
+      <minsize type="argvalue" arg="6"/>
+    </arg>
+    <arg nr="6" direction="in">
+      <not-uninit/>
+      <valid>0:</valid>
+    </arg>
+    <arg nr="7" direction="in">
+      <not-null/>
+      <not-uninit/>
+    </arg>
+    <arg nr="8" direction="in">
+      <not-null/>
+      <not-uninit/>
+    </arg>
+  </function>
+  <!-- https://man7.org/linux/man-pages/man3/gethostbyname2_r.3.html -->
+  <!-- int gethostbyname2_r(const char *name, int af, struct hostent *ret, char *buf, size_t buflen, struct hostent **result, int *h_errnop); -->
+  <function name="gethostbyname2_r">
+    <returnValue type="int"/>
+    <noreturn>false</noreturn>
+    <use-retval/>
+    <pure/>
+    <arg nr="1" direction="in">
+      <not-uninit/>
+      <not-null/>
+      <strz/>
+    </arg>
+    <arg nr="2" direction="in">
+      <not-uninit/>
+    </arg>
+    <arg nr="3" direction="out">
+      <not-null/>
+    </arg>
+    <arg nr="4" direction="in">
+      <not-uninit/>
+      <not-null/>
+      <minsize type="argvalue" arg="5"/>
+    </arg>
+    <arg nr="5" direction="in">
+      <not-uninit/>
+      <valid>0:</valid>
+    </arg>
+    <arg nr="6" direction="in">
+      <not-null/>
+      <not-uninit/>
+    </arg>
+    <arg nr="7" direction="in">
+      <not-null/>
+      <not-uninit/>
+    </arg>
+  </function>
+  <!-- https://man7.org/linux/man-pages/man3/gethostbyname_r.3.html -->
+  <!-- int gethostbyname_r(const char *name, struct hostent *ret, char *buf, size_t buflen, struct hostent **result, int *h_errnop); -->
+  <function name="gethostbyname_r">
+    <returnValue type="int"/>
+    <noreturn>false</noreturn>
+    <use-retval/>
+    <pure/>
+    <arg nr="1" direction="in">
+      <not-uninit/>
+      <not-null/>
+      <strz/>
+    </arg>
+    <arg nr="2" direction="out">
+      <not-null/>
+    </arg>
+    <arg nr="3" direction="in">
+      <not-uninit/>
+      <not-null/>
+      <minsize type="argvalue" arg="4"/>
+    </arg>
+    <arg nr="4" direction="in">
+      <not-uninit/>
+      <valid>0:</valid>
+    </arg>
+    <arg nr="5" direction="in">
+      <not-null/>
+      <not-uninit/>
+    </arg>
+    <arg nr="6" direction="in">
+      <not-null/>
+      <not-uninit/>
+    </arg>
+  </function>  
   <!-- https://www.gnu.org/software/libc/manual/html_node/Getopt-Long-Options.html#Getopt-Long-Options -->
   <!-- int getopt_long(int argc, char * const argv[],
            const char *optstring,

cfg/posix.cfg

@@ -3970,46 +3970,6 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
       <not-bool/>
     </arg>
   </function>
-<!-- https://man7.org/linux/man-pages/man3/gethostbyaddr_r.3.html -->
-<!-- int gethostbyaddr_r(const void *addr, socklen_t len, int type, struct hostent *restrict ret, char *restrict buf, size_t buflen, struct hostent **restrict result, int *restrict h_errnop); -->
-<function name="gethostbyaddr_r">
-  <returnValue type="int"/>
-  <noreturn>false</noreturn>
-  <use-retval/>
-  <pure/>
-  <arg nr="1" direction="in">
-    <not-uninit/>
-    <not-null/>
-  </arg>
-  <arg nr="2" direction="in">
-    <not-uninit/>
-    <valid>0:</valid>
-  </arg>
-  <arg nr="3" direction="in">
-    <not-uninit/>
-  </arg>
-  <arg nr="4" direction="out">
-    <not-null/>
-  </arg>
-  <arg nr="5" direction="in">
-    <not-uninit/>
-    <not-null/>
-    <minsize type="argvalue" arg="6"/>
-  </arg>
-  <arg nr="6" direction="in">
-    <not-uninit/>
-    <valid>0:</valid>
-  </arg>
-  <arg nr="7" direction="in">
-    <not-null/>
-    <not-uninit/>
-  </arg>
-  <arg nr="8" direction="in">
-    <not-null/>
-    <not-uninit/>
-  </arg>
-</function>
-
   <!-- void setkey(const char *key); -->
   <function name="setkey">
     <noreturn>false</noreturn>

test/cfg/gnu.c

@@ -25,6 +25,7 @@
 #include <strings.h>
 #include <error.h>
 #include <getopt.h>
+#include <netdb.h>
 
 void unreachableCode_error(void) // #11197
 {
@@ -34,6 +35,37 @@ void unreachableCode_error(void) // #11197
     int i;
 }
 
+int nullPointer_gethostbyname2_r(const char* name, int af, struct hostent* ret, char* buf, size_t buflen, struct hostent** result, int* h_errnop)
+{
+    // cppcheck-suppress nullPointer
+    (void) gethostbyname2_r(NULL, af, ret, buf, buflen, result, h_errnop);
+    // cppcheck-suppress nullPointer
+    (void) gethostbyname2_r(name, af, NULL, buf, buflen, result, h_errnop);
+    // cppcheck-suppress nullPointer
+    (void) gethostbyname2_r(name, af, ret, NULL, buflen, result, h_errnop);
+    // cppcheck-suppress nullPointer
+    (void) gethostbyname2_r(name, af, ret, buf, buflen, NULL, h_errnop);
+    // cppcheck-suppress nullPointer
+    (void) gethostbyname2_r(name, af, ret, buf, buflen, result, NULL);
+    return gethostbyname2_r(name, af, ret, buf, buflen, result, h_errnop);
+}
+
+int nullPointer_gethostbyname_r(const char* name, struct hostent* ret, char* buf, size_t buflen, struct hostent** result, int* h_errnop)
+{
+    // cppcheck-suppress nullPointer
+    (void) gethostbyname_r(NULL, ret, buf, buflen, result, h_errnop);
+    // cppcheck-suppress nullPointer
+    (void) gethostbyname_r(name, NULL, buf, buflen, result, h_errnop);
+    // cppcheck-suppress nullPointer
+    (void) gethostbyname_r(name, ret, NULL, buflen, result, h_errnop);
+    // cppcheck-suppress nullPointer
+    (void) gethostbyname_r(name, ret, buf, buflen, NULL, h_errnop);
+    // cppcheck-suppress nullPointer
+    (void) gethostbyname_r(name, ret, buf, buflen, result, NULL);
+    return gethostbyname_r(name, ret, buf, buflen, result, h_errnop);
+}
+
+
 int nullPointer_gethostbyaddr_r(const void* addr, socklen_t len, int type, struct hostent* ret, char* buf, size_t buflen, struct hostent** result, int* h_errnop)
 {
     // cppcheck-suppress nullPointer