Wasn't thinking... we don't need to seek to end when appending if stdio

is built without buffer support.

diff --git a/libc/stdio/stdio.c b/libc/stdio/stdio.c
index 4cd330a..0599f23 100644 (file)
--- a/libc/stdio/stdio.c
+++ b/libc/stdio/stdio.c
@@ -1736,18 +1736,6 @@ size_t _stdio_fwrite(const unsigned char *buffer, size_t bytes,
        /* We always clear the reading flag in case at EOF. */
        stream->modeflags &= ~(__FLAG_READING);
 
-       if ((stream->modeflags & (__FLAG_WRITING|__FLAG_APPEND)) == __FLAG_APPEND) {
-               /* Append mode, but not currently writing.  Need to seek to end for proper
-                * ftell() return values.  Don't worry if the stream isn't seekable. */
-               __offmax_t pos[1];
-               *pos = 0;
-               if (_stdio_lseek(stream, pos, SEEK_END) && (errno != EPIPE)) { /* Too big? */
-                       stream->modeflags |= __FLAG_ERROR;
-                       return 0;
-               }
-       }
-
-
        /* Unlike the buffered case, we set the writing flag now since we don't
         * need to do anything here for fflush(). */
        stream->modeflags |= __FLAG_WRITING;