reject messages that grow too large due to conversion
that shouldn't really be a problem, as we have 2GB of headroom, and most growth would happen when sending an all-newlines message from maildir to imap (due to CR additions), which is mostly non-critical. but better safe than sorry.
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@ -494,6 +494,12 @@ copy_msg_convert( int in_cr, int out_cr, copy_vars_t *vars, int t )
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}
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}
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vars->data.len = in_len + extra;
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vars->data.len = in_len + extra;
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if (vars->data.len > INT_MAX) {
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warn( "Warning: message %u from %s is too big after conversion; skipping.\n",
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vars->msg->uid, str_fn[1-t] );
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free( in_buf );
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return 0;
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}
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char *out_buf = vars->data.data = nfmalloc( vars->data.len );
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char *out_buf = vars->data.data = nfmalloc( vars->data.len );
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idx = 0;
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idx = 0;
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if (vars->srec) {
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if (vars->srec) {
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