modifications for the previous commit in error message handling

forgot to --amend my changes

src/apk_defines.h

@@ -32,7 +32,8 @@
 #define NULL 0L
 #endif
 
-#define EAPKSTALEINDEX 1024
+#define EAPKBADURL		1024
+#define EAPKSTALEINDEX		1025
 
 static inline void *ERR_PTR(long error) { return (void*) error; }
 static inline void *ERR_CAST(const void *ptr) { return (void*) ptr; }

src/database.c

@@ -2591,6 +2591,8 @@ static int apk_db_unpack_pkg(struct apk_database *db,
 	bs = apk_bstream_from_fd_url(filefd, file);
 	if (IS_ERR_OR_NULL(bs)) {
 		r = PTR_ERR(bs);
+		if (r == -ENOENT && pkg->filename == NULL)
+			r = -EAPKSTALEINDEX;
 		goto err_msg;
 	}
 	if (need_copy) {

src/print.c

@@ -143,15 +143,15 @@ const char *apk_error_str(int error)
 	case ENXIO:
 		return "DNS lookup error";
 	case EREMOTEIO:
-		return "error code returned by repo server (try 'apk update')";
+		return "remote server returned error (try 'apk update')";
 	case ETIMEDOUT:
 		return "operation timed out";
 	case EAGAIN:
 		return "temporary error (try again later)";
-	case EINVAL:
+	case EAPKBADURL:
 		return "invalid URL (check your repositories file)";
 	case EAPKSTALEINDEX:
-		return "file not available from repo server (try 'apk update')";
+		return "package mentioned in index not found (try 'apk update')";
 	default:
 		return strerror(error);
 	}

src/url.c

@@ -58,7 +58,7 @@ static int fetch_maperror(int ec)
 		[FETCH_TIMEOUT] = -ETIMEDOUT,
 		[FETCH_UNAVAIL] = -ENOENT,
 		[FETCH_UNKNOWN] = -EIO,
-		[FETCH_URL] = -EINVAL,
+		[FETCH_URL] = -EAPKBADURL,
 		[FETCH_UNCHANGED] = -EALREADY,
 	};