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unify two very similar code sections into one single function, header_append()

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This commit is contained in:
Daniel Stenberg 2009-09-27 21:14:15 +00:00
parent 4f47fc4e14
commit 867a0de670
1 changed files with 41 additions and 46 deletions
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87
lib/transfer.c
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@ -742,6 +742,41 @@ static CURLcode readwrite_data(struct SessionHandle *data,
}
#ifndef CURL_DISABLE_HTTP
/*
* header_append() copies a chunk of data to the end of the already received
* header. We make sure that the full string fit in the allocated header
* buffer, or else we enlarge it.
*/
static CURLcode header_append(struct SessionHandle *data,
struct SingleRequest *k,
size_t length)
{
if(k->hbuflen + length >= data->state.headersize) {
/* We enlarge the header buffer as it is too small */
char *newbuff;
size_t hbufp_index;
size_t newsize=CURLMAX((k->hbuflen+ length)*3/2,
data->state.headersize*2);
hbufp_index = k->hbufp - data->state.headerbuff;
newbuff = realloc(data->state.headerbuff, newsize);
if(!newbuff) {
failf (data, "Failed to alloc memory for big header!");
return CURLE_OUT_OF_MEMORY;
}
data->state.headersize=newsize;
data->state.headerbuff = newbuff;
k->hbufp = data->state.headerbuff + hbufp_index;
}
memcpy(k->hbufp, k->str_start, length);
k->hbufp += length;
k->hbuflen += length;
*k->hbufp = 0;
return CURLE_OK;
}
/*
* Read any HTTP header lines from the server and pass them to the client app.
*/
@ -755,7 +790,6 @@ static CURLcode readwrite_http_headers(struct SessionHandle *data,
/* header line within buffer loop */
do {
size_t hbufp_index;
size_t rest_length;
size_t full_length;
int writetype;
@ -769,25 +803,10 @@ static CURLcode readwrite_http_headers(struct SessionHandle *data,
if(!k->end_ptr) {
/* Not a complete header line within buffer, append the data to
the end of the headerbuff. */
result = header_append(data, k, *nread);
if(result)
return result;
if(k->hbuflen + *nread >= data->state.headersize) {
/* We enlarge the header buffer as it is too small */
char *newbuff;
size_t newsize=CURLMAX((k->hbuflen+*nread)*3/2,
data->state.headersize*2);
hbufp_index = k->hbufp - data->state.headerbuff;
newbuff = realloc(data->state.headerbuff, newsize);
if(!newbuff) {
failf (data, "Failed to alloc memory for big header!");
return CURLE_OUT_OF_MEMORY;
}
data->state.headersize=newsize;
data->state.headerbuff = newbuff;
k->hbufp = data->state.headerbuff + hbufp_index;
}
memcpy(k->hbufp, k->str, *nread);
k->hbufp += *nread;
k->hbuflen += *nread;
if(!k->headerline && (k->hbuflen>5)) {
/* make a first check that this looks like a HTTP header */
if(!checkhttpprefix(data, data->state.headerbuff)) {
@ -809,35 +828,11 @@ static CURLcode readwrite_http_headers(struct SessionHandle *data,
full_length = k->str - k->str_start;
/*
* We're about to copy a chunk of data to the end of the
* already received header. We make sure that the full string
* fit in the allocated header buffer, or else we enlarge
* it.
*/
if(k->hbuflen + full_length >=
data->state.headersize) {
char *newbuff;
size_t newsize=CURLMAX((k->hbuflen+full_length)*3/2,
data->state.headersize*2);
hbufp_index = k->hbufp - data->state.headerbuff;
newbuff = realloc(data->state.headerbuff, newsize);
if(!newbuff) {
failf (data, "Failed to alloc memory for big header!");
return CURLE_OUT_OF_MEMORY;
}
data->state.headersize= newsize;
data->state.headerbuff = newbuff;
k->hbufp = data->state.headerbuff + hbufp_index;
}
result = header_append(data, k, full_length);
if(result)
return result;
/* copy to end of line */
memcpy(k->hbufp, k->str_start, full_length);
k->hbufp += full_length;
k->hbuflen += full_length;
*k->hbufp = 0;
k->end_ptr = k->hbufp;
k->p = data->state.headerbuff;
/****