Rob Newberry wrote:
>>> I think it's:
>>> sysctl kern.sbmax
>>
>> Thanks.. I knew that but the question is how to
obtain the value
>> programatically?
>
>
> sysctl(3)
>
>
Thanks....I tried to limit the sock buffer to the maximum
sockbuf as
specified by the kern.sbmax variable like this
int *bufsize = (int *)arg;
int mib[2], sockbufmax;
size_t len;
mib[0] = CTL_KERN;
mib[1] = KERN_SBMAX;
len = sizeof(sockbufmax);
sysctl(mib, 2, &sockbufmax, &len, NULL, 0);
if (*bufsize > sockbufmax)
*bufsize = sockbufmax;
fprintf(stdout, "buffersize %dn",
*bufsize);
fflush(stdout);
}
return setsockopt(fd, SOL_SOCKET, SO_RCVBUF, arg, len);
although kern.sbmax shows 262144 i.e., 256KB, but while
setting
setsockopt for sockbufsize of 2147483646 which will get
limited to
262144 I am getting -1. Only if I limit it within 227KB,
then it passes
Any clue?!
Regards
Prasanta
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