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Fixing hang-on bug in lfgen protocol

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r3690 | jgn | 2012-08-03 14:09:55 +1000 (Fri, 03 Aug 2012) | 1 line
This commit is contained in:
Jing Chen
2012-08-03 14:09:55 +10:00
committed by Douglas Clowes
parent 27a37364ab
commit f2788d66cd
1 changed files with 10 additions and 7 deletions
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17
site_ansto/hardsup/sct_lfprot.c
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@@ -145,17 +145,20 @@ int LFGenReading(Ascon *a)
// Read HEAD info
do {
ret = AsconReadChar(a->fd, &chr);
if(ret<0) {
AsconError(a, "AsconReadChar failed:", errno);
if(ret<=0) {
AsconError(a, "AsconReadChar failed:", 0);
a->state = AsconReadDone;
return 0;
} else {
HEAD = (BYTE)chr;
}
HEAD = (BYTE)chr;
} while (HEAD!=0x96);
// read LEN info
ret = AsconReadChar(a->fd, &chr);
if(ret<0) {
AsconError(a, "AsconReadChar failed:", errno);
if(ret<=0) {
AsconError(a, "AsconReadChar failed:", 0);
a->state = AsconReadDone;
return 0;
}
LEN = (BYTE)chr;
@@ -173,8 +176,8 @@ int LFGenReading(Ascon *a)
// read all other chars
while(ind<LEN+2) {
ret = AsconReadChar(a->fd, &chr);
if (ret < 0) {
AsconError(a, "AsconReadChar failed:", errno);
if (ret <= 0) {
AsconError(a, "AsconReadChar failed:", 0);
a->state = AsconReadDone;
return 0;
}