git: a6dfd2015c20 - main - tftpd: Fix max block size calculation.
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Date: Fri, 10 Mar 2023 13:29:15 UTC
The branch main has been updated by des:
URL: https://cgit.FreeBSD.org/src/commit/?id=a6dfd2015c202f3424eb58846d8575a877728881
commit a6dfd2015c202f3424eb58846d8575a877728881
Author: Dag-Erling Smørgrav <des@FreeBSD.org>
AuthorDate: 2023-03-10 13:24:15 +0000
Commit: Dag-Erling Smørgrav <des@FreeBSD.org>
CommitDate: 2023-03-10 13:25:15 +0000
tftpd: Fix max block size calculation.
Sponsored by: Klara, Inc.
Reviewed by: markj
Differential Revision: https://reviews.freebsd.org/D38953
---
libexec/tftpd/tftp-options.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/libexec/tftpd/tftp-options.c b/libexec/tftpd/tftp-options.c
index 01876b4750f9..037517f9cd73 100644
--- a/libexec/tftpd/tftp-options.c
+++ b/libexec/tftpd/tftp-options.c
@@ -230,6 +230,7 @@ option_blksize(int peer)
tftp_log(LOG_ERR, "sysctl: net.inet.udp.maxdgram");
return (acting_as_client ? 1 : 0);
}
+ maxdgram -= 4; /* leave room for header */
int size = atoi(options[OPT_BLKSIZE].o_request);
if (size < BLKSIZE_MIN || size > BLKSIZE_MAX) {