Merge commit '00b62968d079e63bf22028f253ac297292436ebe'

* commit '00b62968d079e63bf22028f253ac297292436ebe':
  os_support: Don't try to return the service name as a string in getnameinfo

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

configure

@@ -1808,7 +1808,6 @@ SYSTEM_FUNCS="
     GetProcessMemoryInfo
     GetProcessTimes
     getrusage
-    getservbyport
     GetSystemTimeAsFileTime
     gettimeofday
     glob
@@ -5106,7 +5105,6 @@ nvenc_encoder_extralibs='$ldl'
 
 if ! disabled network; then
     check_func getaddrinfo $network_extralibs
-    check_func getservbyport $network_extralibs
     check_func inet_aton $network_extralibs
 
     check_type netdb.h "struct addrinfo"

libavformat/os_support.c

@@ -205,16 +205,9 @@ int ff_getnameinfo(const struct sockaddr *sa, int salen,
     }
 
     if (serv && servlen > 0) {
-        struct servent *ent = NULL;
-#if HAVE_GETSERVBYPORT
         if (!(flags & NI_NUMERICSERV))
-            ent = getservbyport(sin->sin_port, flags & NI_DGRAM ? "udp" : "tcp");
-#endif /* HAVE_GETSERVBYPORT */
-
-        if (ent)
-            snprintf(serv, servlen, "%s", ent->s_name);
-        else
-            snprintf(serv, servlen, "%d", ntohs(sin->sin_port));
+            return EAI_FAIL;
+        snprintf(serv, servlen, "%d", ntohs(sin->sin_port));
     }
 
     return 0;