git: purgatorio

ref: 8a788aea84aad3bfbd5b39d78c1925654f3b9e14
dir: /libbio/bputrune.c/

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#include	"lib9.h"
#include	<bio.h>

int
Bputrune(Biobuf *bp, long c)
{
	Rune rune;
	char str[UTFmax];
	int n;

	rune = c;
	if(rune < Runeself) {
		Bputc(bp, rune);
		return 1;
	}
	n = runetochar(str, &rune);
	if(n == 0)
		return Bbad;
	if(Bwrite(bp, str, n) != n)
		return Beof;
	return n;
}