shithub: misc

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up- and downward compat

--- a/hidpi-1.patch

+++ b/hidpi-1.patch

@@ -101,10 +101,11 @@

  	char buf[128], info[NINFO+1], *t, isnew;

  	int n, datafd, ctlfd, reffd;

  	Display *disp;

-@@ -320,6 +321,18 @@

+@@ -319,6 +320,18 @@

+ 	if(dir!=nil && dir->qid.vers==1)	/* other way to tell */

  		disp->_isnewdisplay = 1;

  	free(dir);

- 

++

 +	a = bufimage(disp, 3);

 +	if(a == nil)

 +		goto Error5;

@@ -112,11 +113,11 @@

 +	a[1] = 1;

 +	a[2] = 'd';

 +	disp->dpi = 100;

-+	if(flushimage(disp, 0) < 0)

-+		goto Error5;

-+	if((read(datafd, info, sizeof info)) == 12)

-+		disp->dpi = atoi(info);

-+

++	if(flushimage(disp, 0) >= 0) {

++		if((read(datafd, info, sizeof info)) == 12)

++			disp->dpi = atoi(info);

++	}

+ 

  	return disp;

  }

- 

+