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setopt: check CURLOPT_TFTP_BLKSIZE range on set

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... instead of later when the transfer is about to happen.

Closes #12374
This commit is contained in:
Daniel Stenberg 2023-11-21 17:34:30 +01:00
parent 84338c4de2
commit 49c413cce2
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3 changed files with 7 additions and 7 deletions
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lib/setopt.c
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@ -50,6 +50,7 @@
#include "multiif.h"
#include "altsvc.h"
#include "hsts.h"
#include "tftp.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
@ -379,7 +380,7 @@ CURLcode Curl_vsetopt(struct Curl_easy *data, CURLoption option, va_list param)
* TFTP option that specifies the block size to use for data transmission.
*/
arg = va_arg(param, long);
if(arg < 0)
if(arg > TFTP_BLKSIZE_MAX || arg < TFTP_BLKSIZE_MIN)
return CURLE_BAD_FUNCTION_ARGUMENT;
data->set.tftp_blksize = arg;
break;