fix signed/unsigned warning and add a note

diff --git a/ext/zlib/zlib_fopen_wrapper.c b/ext/zlib/zlib_fopen_wrapper.c
index 713a6ecfb272ebcd7e1904704315493b285aeb83..948065a86d30a4252d734bd54a0538941a28ace8 100644 (file)
--- a/ext/zlib/zlib_fopen_wrapper.c
+++ b/ext/zlib/zlib_fopen_wrapper.c
@@ -37,13 +37,14 @@ static size_t php_gziop_read(php_stream *stream, char *buf, size_t count TSRMLS_
        struct php_gz_stream_data_t *self = (struct php_gz_stream_data_t *) stream->abstract;
        int read;
        
+       /* XXX this needs to be looped for the case count > UINT_MAX */
        read = gzread(self->gz_file, buf, count);
        
        if (gzeof(self->gz_file)) {
                stream->eof = 1;
        }
                
-       return (read < 0) ? 0 : read;
+       return (size_t)((read < 0) ? 0 : read);
 }
 
 static size_t php_gziop_write(php_stream *stream, const char *buf, size_t count TSRMLS_DC)
@@ -51,9 +52,10 @@ static size_t php_gziop_write(php_stream *stream, const char *buf, size_t count
        struct php_gz_stream_data_t *self = (struct php_gz_stream_data_t *) stream->abstract;
        int wrote;
 
+       /* XXX this needs to be looped for the case count > UINT_MAX */
        wrote = gzwrite(self->gz_file, (char *) buf, count);
 
-       return (wrote < 0) ? 0 : wrote;
+       return (size_t)((wrote < 0) ? 0 : wrote);
 }
 
 static int php_gziop_seek(php_stream *stream, zend_off_t offset, int whence, zend_off_t *newoffs TSRMLS_DC)