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http: pass correct header size to debug callback for chunked post

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... when the chunked framing was added, the size of the "body part" of
the data was calculated wrongly so the debug callback would get told a
header chunk a few bytes too big that would also contain the first few
bytes of the request body.

Reported-by: Dirk Wetter
Ref: #6144
Closes #6147
This commit is contained in:
Daniel Stenberg 2020-10-30 11:29:22 +01:00
parent 1144886f38
commit 584ccb5ef2
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GPG key ID: 5CC908FDB71E12C2
1 changed files with 9 additions and 5 deletions
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14
lib/http.c
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@ -2873,20 +2873,24 @@ CURLcode Curl_http(struct connectdata *conn, bool *done)
}
else {
if(postsize) {
char chunk[16];
/* Append the POST data chunky-style */
result = Curl_dyn_addf(&req, "%x\r\n", (int)postsize);
msnprintf(chunk, sizeof(chunk), "%x\r\n", (int)postsize);
result = Curl_dyn_add(&req, chunk);
if(!result) {
included_body = postsize + strlen(chunk);
result = Curl_dyn_addn(&req, data->set.postfields,
(size_t)postsize);
if(!result)
result = Curl_dyn_add(&req, "\r\n");
included_body = postsize + 2;
included_body += 2;
}
}
if(!result)
if(!result) {
result = Curl_dyn_add(&req, "\x30\x0d\x0a\x0d\x0a");
/* 0 CR LF CR LF */
included_body += 5;
/* 0 CR LF CR LF */
included_body += 5;
}
}
if(result)
return result;