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Even more changes to handle block number wrap correctly.

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Make the client officially supported.  It's better than most things
that are already out there.
This commit is contained in:
hpa 2001-11-13 03:39:32 +00:00
parent 480bee14e9
commit a58b9604c5
3 changed files with 9 additions and 9 deletions
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2
CHANGES
View file

@ -5,6 +5,8 @@ Changes in 0.24:
wraparound, usually manifesting themselves as failure to
handle files over 32 MB in size.
Officially make the client a part of the tftp-hpa project.
Changes in 0.23:
Correct memory overwrite bug in the tftp client when compiled

5
README
View file

@ -23,8 +23,3 @@ installation instructions.
This software can be discussed on the SYSLINUX mailing list. To
subscribe, send a message containing the word "subscribe" in the body
to <syslinux-request@linux.kernel.org>.
Please note that my main focus in this work is the tftpd
server. Although a tftp client is included, it is by and large the
stock OpenBSD version, with a small handful of portability
improvements.

11
tftp/tftp.c
View file

@ -104,9 +104,10 @@ tftp_sendfile(int fd, char *name, char *mode)
struct tftphdr *ap; /* data and ack packets */
struct tftphdr *dp;
int n;
volatile int is_request;
volatile u_short block;
volatile int size, convert;
volatile unsigned long amount;
volatile off_t amount;
struct sockaddr_in from;
int fromlen;
FILE *file;
@ -117,13 +118,14 @@ tftp_sendfile(int fd, char *name, char *mode)
file = fdopen(fd, "r");
convert = !strcmp(mode, "netascii");
block = 0;
is_request = 1; /* First packet is the actual WRQ */
amount = 0;
bsd_signal(SIGALRM, timer);
do {
if (block == 0)
if (is_request) {
size = makerequest(WRQ, name, dp, mode) - 4;
else {
} else {
/* size = read(fd, dp->th_data, SEGSIZE); */
size = readit(file, &dp, convert);
if (size < 0) {
@ -187,8 +189,9 @@ send_data:
}
}
}
if (block > 0)
if ( !is_request )
amount += size;
is_request = 0;
block++;
} while (size == SEGSIZE || block == 1);
abort: