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Provide a new `-b' flag to work around some broken HTTP/TCP implementations

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that can't deal with a half-closed connection.
This commit is contained in:
Garrett Wollman 1997-07-25 19:35:44 +00:00
parent 21cd47e85e
commit 0c8cc99e5b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=27679
4 changed files with 25 additions and 9 deletions
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14
usr.bin/fetch/fetch.1
View File

@ -1,4 +1,4 @@
.\" $Id: fetch.1,v 1.16 1997/02/22 23:43:32 wosch Exp $
.\" $Id: fetch.1,v 1.17 1997/03/05 18:57:15 fenner Exp $
.Dd July 2, 1996
.Dt FETCH 1
.Os FreeBSD 2.2
@ -7,7 +7,7 @@
.Nd retrieve a file by Uniform Resource Locator
.Sh SYNOPSIS
.Nm fetch
.Op Fl MPamnpqr
.Op Fl MPabmnpqr
.Op Fl o Ar file
.Ar URL
.Op Ar ...
@ -48,6 +48,12 @@ The following options are available:
.Bl -tag -width Fl
.It Fl a
Automatically retry the transfer upon soft failures.
.It Fl b
Work around a bug in some
.Tn HTTP
servers which fail to correctly implement the
.Tn TCP
protocol.
.It Fl c Ar dir
The file to retrieve is in directory
.Ar dir
@ -301,3 +307,7 @@ Only the
authentication mode is implemented for
.Tn HTTP .
This should be replaced by digest authentication.
.Pp
The
.Fl b
flag should not be necessary.

3
usr.bin/fetch/fetch.h
View File

@ -26,7 +26,7 @@
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: fetch.h,v 1.2 1997/01/31 19:55:49 wollman Exp $
* $Id: fetch.h,v 1.3 1997/02/05 19:59:10 wollman Exp $
*/
#ifndef fetch_h
@ -49,6 +49,7 @@ struct fetch_state {
int fs_linkfile; /* -l option */
int fs_precious; /* -R option */
int fs_auto_retry; /* -a option */
int fs_linux_bug; /* -b option */
time_t fs_modtime;
void *fs_proto;
int (*fs_retrieve)(struct fetch_state *);

6
usr.bin/fetch/http.c
View File

@ -26,7 +26,7 @@
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: http.c,v 1.5 1997/03/05 18:57:16 fenner Exp $
* $Id: http.c,v 1.6 1997/03/06 20:01:32 jmg Exp $
*/
#include <sys/types.h>
@ -483,7 +483,7 @@ http_retrieve(struct fetch_state *fs)
n = 0;
msg.msg_control = 0;
msg.msg_controllen = 0;
msg.msg_flags = MSG_EOF;
msg.msg_flags = fs->fs_linux_bug ? 0 : MSG_EOF;
#define addstr(Iov, N, Str) \
do { \
@ -575,7 +575,7 @@ retry:
fs->fs_status = "sending request message";
setup_sigalrm();
alarm(timo);
if (sendmsg(s, &msg, MSG_EOF) < 0) {
if (sendmsg(s, &msg, fs->fs_linux_bug ? 0 : MSG_EOF) < 0) {
warn("sendmsg: %s", https->http_hostname);
fclose(remote);
return EX_OSERR;

11
usr.bin/fetch/main.c
View File

@ -24,7 +24,7 @@
* SUCH DAMAGE.
*/
/* $Id: main.c,v 1.39 1997/07/01 06:37:34 charnier Exp $ */
/* $Id: main.c,v 1.40 1997/07/02 06:28:32 charnier Exp $ */
#include <sys/types.h>
@ -73,7 +73,7 @@ main(int argc, char *const *argv)
fs.fs_verbose = 1;
change_to_dir = file_to_get = hostname = 0;
while ((c = getopt(argc, argv, "ac:D:f:h:HilLmMnNo:pPqRrT:vV:")) != -1) {
while ((c = getopt(argc, argv, "abc:D:f:h:HilLmMnNo:pPqRrT:vV:")) != -1) {
switch (c) {
case 'D': case 'H': case 'I': case 'N': case 'L': case 'V':
break; /* ncftp compatibility */
@ -81,10 +81,15 @@ main(int argc, char *const *argv)
case 'a':
fs.fs_auto_retry = 1;
break;
case 'b':
fs.fs_linux_bug = 1;
break;
case 'c':
change_to_dir = optarg;
break;
case 'f':
file_to_get = optarg;
break;