o5r/plan9port
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Fix 15-year-old sam protocol bug.

Browse source
This commit is contained in:
rsc 2007-01-12 15:57:34 +00:00
parent ad2922ef28
commit 78439d25f8
4 changed files with 34 additions and 34 deletions
Download patch file Download diff file Expand all files Collapse all files

21
src/cmd/sam/mesg.c
View file

@ -1,5 +1,5 @@
#include "sam.h"
#define DEBUG
Header h;
uchar indata[DATASIZE];
uchar outdata[2*DATASIZE+3]; /* room for overflow message */
@ -10,7 +10,7 @@ Posn cmdpt;
Posn cmdptadv;
Buffer snarfbuf;
int waitack;
int noflush;
int outbuffered;
int tversion;
int inshort(void);
@ -807,21 +807,26 @@ outsend(void)
{
int outcount;
if(outp >= outdata+nelem(outdata))
panic("outsend");
outcount = outp-outmsg;
outcount -= 3;
outmsg[1] = outcount;
outmsg[2] = outcount>>8;
outmsg = outp;
if(!noflush){
if(!outbuffered){
outcount = outmsg-outdata;
if (write(1, (char*) outdata, outcount) != outcount)
rescue();
outmsg = outdata;
return;
}
if(outmsg < outdata+DATASIZE)
return;
outflush();
}
int
needoutflush(void)
{
return 1;
}
void
@ -829,7 +834,7 @@ outflush(void)
{
if(outmsg == outdata)
return;
noflush = 0;
outbuffered = 0;
outT0(Hack);
waitack = 1;
do
@ -839,5 +844,5 @@ outflush(void)
}
while(waitack);
outmsg = outdata;
noflush = 1;
outbuffered = 1;
}