You could set the max upload value to INT_MAX (2^31-1, as you have
below), and that should work, but going higher will be difficult.
Simply changing the variable to a long in one place is insufficient,
because that value is handled in quite a few places, and you'd need to
change all of them; the obvious one is the Limits structure referenced
in the code snippet you have, but there's also buffer sizes and scanf
formats (to read the upload size from the http request) to handle, and
probably a few others as well.
-J
Eduardo Santos wrote:
Hi everybody,
My system have very specific needs to upload really large files
sometimes. My upload limit is actually 400MB, but I've received a
request to raise this value to 2GB.
I'm using AOLServer 4.5.1 and I know this is based on ns_limits command.
So, I used the following piece of code to raise the upload size:
set max_file_upload_mb 2500
set size [expr $max_file_upload_mb * 1024 * 1024]
ns_limits set default -maxupload $size
However, the response was completely unexpected:
nrunning 3 nwaiting 0 ntimeout 0 ndropped 0 noverflow 0 maxwait 100
maxupload -1673527296 timeout 60 maxrun 100
/maxupload/ had a negative size! I started digging up in C source code
from AOLServer, and I guess I've found the problem. In the file
nsd/limits.c we have the following piece of code:
int i, val;
static CONST char *opts[] = {
"get", "set", "list", "register", NULL
};
enum {
LGetIdx, LSetIdx, LListIdx, LRegisterIdx
} opt;
static CONST char *cfgs[] = {
"-maxrun", "-maxwait", "-maxupload", "-timeout", NULL
};
(...)
switch (cfg) {
case LCUploadIdx:
limitsPtr->maxupload = val;
break;
}
}
It seems like /maxupload/ receives the value from /val/, wich is an int
var. If I'm not wrong, the maximum value for C int vars
is 2,147,483,647, and I was trying to setup this value to 2,621,440,000,
wich seems to be causing an overflow.
Considering all this, if I just change the line below everything should
work, right?
int i, val;
I could just use:
int i;
bigint val;
Did I say something wrong or this line of thinking make any sense?
--
Eduardo Santos
Analista de Sistemas
http://eduardosan.wordpress.com
http://twitter.com/eduardosan
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