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[svn] Explicitly document all cases when generating the Host header.

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hniksic 2005-06-30 08:09:39 -07:00
parent e38c88e458
commit 5b26cb40a9
2 changed files with 23 additions and 13 deletions
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5
src/ChangeLog
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@ -1,3 +1,8 @@
2005-06-30 Hrvoje Niksic <hniksic@xemacs.org>
* http.c (gethttp): Explicitly document the different cases when
generating the Host header.
2005-06-30 Hrvoje Niksic <hniksic@xemacs.org>
* host.c (pretty_print_address): Handle error result from

27
src/http.c
View File

@ -1308,19 +1308,24 @@ gethttp (struct url *u, struct http_stat *hs, int *dt, struct url *proxy)
request_set_header (req, "Proxy-Authorization", proxyauth, rel_value);
}
/* Generate the Host header, HOST:PORT. Take into account that:
- Broken server-side software often doesn't recognize the PORT
argument, so we must generate "Host: www.server.com" instead of
"Host: www.server.com:80" (and likewise for https port).
- IPv6 addresses contain ":", so "Host: 3ffe:8100:200:2::2:1234"
becomes ambiguous and needs to be rewritten as "Host:
[3ffe:8100:200:2::2]:1234". */
{
/* Whether we need to print the host header with braces around
host, e.g. "Host: [3ffe:8100:200:2::2]:1234" instead of the
usual "Host: symbolic-name:1234". */
bool squares = strchr (u->host, ':') != NULL;
if (u->port == scheme_default_port (u->scheme))
/* Formats arranged for hfmt[add_port][add_squares]. */
static const char *hfmt[][2] = {
{ "%s", "[%s]" }, { "%s:%d", "[%s]:%d" }
};
int add_port = u->port != scheme_default_port (u->scheme);
int add_squares = strchr (u->host, ':') != NULL;
request_set_header (req, "Host",
aprintf (squares ? "[%s]" : "%s", u->host),
rel_value);
else
request_set_header (req, "Host",
aprintf (squares ? "[%s]:%d" : "%s:%d",
u->host, u->port),
aprintf (hfmt[add_port][add_squares], u->host, u->port),
rel_value);
}