1 b2cfc4e2 2003-09-30 devnull #include	"lib9.h"
 2 b2cfc4e2 2003-09-30 devnull #include	<bio.h>
 3 b2cfc4e2 2003-09-30 devnull 
 4 b2cfc4e2 2003-09-30 devnull int
 5 b2cfc4e2 2003-09-30 devnull Bputc(Biobuf *bp, int c)
 6 b2cfc4e2 2003-09-30 devnull {
 7 b2cfc4e2 2003-09-30 devnull 	int i, j;
 8 b2cfc4e2 2003-09-30 devnull 
 9 b2cfc4e2 2003-09-30 devnull loop:
10 b2cfc4e2 2003-09-30 devnull 	i = bp->ocount;
11 b2cfc4e2 2003-09-30 devnull 	j = i+1;
12 b2cfc4e2 2003-09-30 devnull 	if(i != 0) {
13 b2cfc4e2 2003-09-30 devnull 		bp->ocount = j;
14 b2cfc4e2 2003-09-30 devnull 		bp->ebuf[i] = c;
15 b2cfc4e2 2003-09-30 devnull 		return 0;
16 b2cfc4e2 2003-09-30 devnull 	}
17 b2cfc4e2 2003-09-30 devnull 	if(bp->state != Bwactive)
18 b2cfc4e2 2003-09-30 devnull 		return Beof;
19 b2cfc4e2 2003-09-30 devnull 	j = write(bp->fid, bp->bbuf, bp->bsize);
20 b2cfc4e2 2003-09-30 devnull 	if(j == bp->bsize) {
21 b2cfc4e2 2003-09-30 devnull 		bp->ocount = -bp->bsize;
22 b2cfc4e2 2003-09-30 devnull 		bp->offset += j;
23 b2cfc4e2 2003-09-30 devnull 		goto loop;
24 b2cfc4e2 2003-09-30 devnull 	}
25 b2cfc4e2 2003-09-30 devnull 	fprint(2, "Bputc: write error\n");
26 b2cfc4e2 2003-09-30 devnull 	bp->state = Binactive;
27 b2cfc4e2 2003-09-30 devnull 	bp->ocount = 0;
28 b2cfc4e2 2003-09-30 devnull 	return Beof;
29 b2cfc4e2 2003-09-30 devnull }