Test for EOF on read in an1 reader.

diff --git a/an1.c b/an1.c
index 134335ee2021a35002e80b864896c6d1b1adc09e..e47af08d72307978c751dc9938a3afca1cf31b2c 100644 (file)
--- a/an1.c
+++ b/an1.c
@@ -154,7 +154,9 @@ static unsigned char
 ReadChar( FILE *f )
 {
        unsigned char result = 0;
-       fread( &result, 1, 1, f );
+       if (fread( &result, 1, 1, f ) < 1) {
+               fatal( MYNAME ": error reading an1 file.  Perhaps this isn't really an an1 file.");
+       }
        return result;
 }