I think found the bug in owcapi.c. After allocating the buffer, OWQ_size()
wasn't set to the max buffer-size.
if ((OWQ_buffer(owq) = malloc(s + 1)) == NULL)
return -ENOMEM;
+ OWQ_size(owq) = s ;
I checked in the changes into the CVS.
/Christian
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Steve
Malenfant
Sent: den 4 juni 2007 21:51
To: [email protected]
Subject: Re: [Owfs-developers] (C) API question
There is definitively something wrong in owfs-tcl in 2.6
The path returned always contains "," instead of white space " ". Also the
result always comes back with nothing when it's at the end of the tree.
Steve M.
On 6/4/07, Christian Magnusson <[EMAIL PROTECTED]> wrote:
The problem is in Fowq_output_offset_and_size(). When I looked at the
variables, OWQ_size and OWQ_length didn't contain correct values.
DEBUG: OWQ_size=0 OWQ_length=-1028883844 length=12 copy_length=12
After this, copy_length is set to 0 since OWQ_size == 0.
if ( copy_length > OWQ_size(owq) ) copy_length = OWQ_size(owq) ;
This results into a 0 copied bytes to the output-buffer.
I tried to just comment away this if-statement, and then it worked good. I'm
not sure if this is correct though. OWQ_size should be set to some bigger
value in some other place I guess.
/Christian
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]> ] On Behalf Of Paul
Alfille
Sent: den 2 juni 2007 14:46
To: [email protected]
<mailto:[email protected]>
Subject: Re: [Owfs-developers] (C) API question
Sounds like a bug in owcapi -- I'll check.
Paul Alfille
On 6/2/07, Sven Geggus <[EMAIL PROTECTED]> wrote:
Hi there,
my last posting I assumed this to be a bug of owtcl, but its not!
Presumably I have just got some misunderstanding of the API.
Anyway, this did work with some older Version of owfs!
So, whats wrong with this piece of code:
--cut--
int main() {
char *s;
size_t n;
if(OW_init("localhost:55555") !=0) exit(1);;
OW_get("/10.B963D4000800/type",&s,&n);
printf("%d\n",n);
if (n >0) printf("%s\n",s);
OW_finish();
exit(EXIT_SUCCESS);
}
--cut--
BTW, it works just fine, when I replace "/10.B963D4000800/type" by
"/10.B963D4000800" only.
Sven
--
/* Fuck me gently with a chainsaw... */
(David S. Miller in /usr/src/linux/arch/sparc/kernel/ptrace.c)
/me is [EMAIL PROTECTED], http://sven.gegg.us/ on the Web
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