Add gps_errstr() to the client API so client code doesn't have to

reinvent it all the time.  Use it in gpsmon.

1 files changed, 13 insertions, 0 deletions

diff --git a/netlib.c b/netlib.c
index 219ebd1d..5d97ebea 100644
--- a/netlib.c
+++ b/netlib.c
@@ -87,6 +87,19 @@ int netlib_connectsock(const char *host, const char *service, const char *protoc
     /*@ +type +mustfreefresh @*/
 }
 
+char /*@observer@*/ *netlib_errstr(const int err)
+{
+    switch (err) {
+    case NL_NOSERVICE:  return "can't get service entry"; break;
+    case NL_NOHOST:     return "can't get host entry"; break;
+    case NL_NOPROTO:    return "can't get protocol entry"; break;
+    case NL_NOSOCK:     return "can't create socket"; break;
+    case NL_NOSOCKOPT:  return "error SETSOCKOPT SO_REUSEADDR"; break;
+    case NL_NOCONNECT:  return "can't connect to host/port pair"; break;
+    default:		return "unknown error"; break;
+    }
+}
+
 char *sock2ip(int fd)
 {
     struct sockaddr fsin;