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-rw-r--r--libexec/tftpd/tftpd.85
-rw-r--r--libexec/tftpd/tftpd.c4
-rw-r--r--usr.bin/tftp/tftp.13
-rw-r--r--usr.bin/tftp/tftp.c6
4 files changed, 14 insertions, 4 deletions
diff --git a/libexec/tftpd/tftpd.8 b/libexec/tftpd/tftpd.8
index 41e0a92..ec3ece5 100644
--- a/libexec/tftpd/tftpd.8
+++ b/libexec/tftpd/tftpd.8
@@ -192,3 +192,8 @@ and the
.Fl c
option was introduced in
.Fx 5.0 .
+.Sh BUGS
+Files larger than 33488896 octets (65535 blocks) cannot be transferred
+without client and server supporting blocksize negotiation (RFC1783).
+.Pp
+Many tftp clients will not transfer files over 16744448 octets (32767 blocks).
diff --git a/libexec/tftpd/tftpd.c b/libexec/tftpd/tftpd.c
index f0f0ca4..f219f08 100644
--- a/libexec/tftpd/tftpd.c
+++ b/libexec/tftpd/tftpd.c
@@ -501,7 +501,7 @@ xmitfile(pf)
struct tftphdr *dp, *r_init();
register struct tftphdr *ap; /* ack packet */
register int size, n;
- volatile int block;
+ volatile unsigned short block;
signal(SIGALRM, timer);
dp = r_init();
@@ -571,7 +571,7 @@ recvfile(pf)
struct tftphdr *dp, *w_init();
register struct tftphdr *ap; /* ack buffer */
register int n, size;
- volatile int block;
+ volatile unsigned short block;
signal(SIGALRM, timer);
dp = w_init();
diff --git a/usr.bin/tftp/tftp.1 b/usr.bin/tftp/tftp.1
index 15eab98..0c75272 100644
--- a/usr.bin/tftp/tftp.1
+++ b/usr.bin/tftp/tftp.1
@@ -167,6 +167,9 @@ protocol, the remote site will probably have some
sort of file-access restrictions in place. The
exact methods are specific to each site and therefore
difficult to document here.
+.Pp
+Files larger than 33488896 octets (65535 blocks) cannot be transferred
+without client and server supporting blocksize negotiation (RFC1783).
.Sh HISTORY
The
.Nm
diff --git a/usr.bin/tftp/tftp.c b/usr.bin/tftp/tftp.c
index 9dc00af..e7dc824 100644
--- a/usr.bin/tftp/tftp.c
+++ b/usr.bin/tftp/tftp.c
@@ -96,7 +96,8 @@ xmitfile(fd, name, mode)
register struct tftphdr *ap; /* data and ack packets */
struct tftphdr *r_init(), *dp;
register int n;
- volatile int block, size, convert;
+ volatile unsigned short block;
+ volatile int size, convert;
volatile unsigned long amount;
struct sockaddr_in from;
int fromlen;
@@ -201,7 +202,8 @@ recvfile(fd, name, mode)
register struct tftphdr *ap;
struct tftphdr *dp, *w_init();
register int n;
- volatile int block, size, firsttrip;
+ volatile unsigned short block;
+ volatile int size, firsttrip;
volatile unsigned long amount;
struct sockaddr_in from;
int fromlen;
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