Added tons of comments all over (c7c94286) · Commits · CYBER - Cyber Security / TS 103 523 MSP / TLMSP / TLMSP curl

lib/transfer.c

+44 −15

Original line number	Diff line number	Diff line
		@@ -158,8 +158,19 @@ compareheader(char headerline, / line to check */
		return FALSE; /* no match */
		}

		/* Parts of this function was written by the friendly Mark Butler
		<butlerm@xmission.com>. */
		/*
		* Transfer()
		*
		* This function is what performs the actual transfer. It is capable of
		* doing both ways simultaneously.
		* The transfer must already have been setup by a call to Curl_Transfer().
		*
		* Note that headers are created in a preallocated buffer of a default size.
		* That buffer can be enlarged on demand, but it is never shrinken again.
		*
		* Parts of this function was once written by the friendly Mark Butler
		* <butlerm@xmission.com>.
		*/

		CURLcode static
		Transfer(struct connectdata *c_conn)
		@@ -317,6 +328,10 @@ Transfer(struct connectdata *c_conn)
		/* copy what is remaining into headerbuff */
		int str_length = (int)strlen(str);

		/*
		* We enlarge the header buffer if it seems to be too
		* smallish
		*/
		if (hbuflen + (int)str_length >= data->headersize) {
		char *newbuff;
		long newsize=MAX((hbuflen+str_length)*3/2,
		@@ -339,6 +354,12 @@ Transfer(struct connectdata *c_conn)

		str = end_ptr + 1; /* move just past new line */

		/*
		* 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 (hbuflen + (str - str_start) >= data->headersize) {
		char *newbuff;
		long newsize=MAX((hbuflen+(str-str_start))*3/2,
		@@ -362,23 +383,17 @@ Transfer(struct connectdata *c_conn)

		p = data->headerbuff;

		/* we now have a full line that p points to */
		if (('\n' == p) \|\| ('\r' == p)) {
		/* Zero-length line means end of header! */
		#if 0
		if (-1 != conn->size) /* if known */
		conn->size += bytecount; /* we append the already read
		size */
		#endif
		/****
		* We now have a FULL header line that p points to
		*****/

		if (('\n' == p) \|\| ('\r' == p)) {
		/* Zero-length header line means end of headers! */

		if ('\r' == *p)
		p++; /* pass the \r byte */
		if ('\n' == *p)
		p++; /* pass the \n byte */
		#if 0 /* headers are not included in the size */
		Curl_pgrsSetDownloadSize(data, conn->size);
		#endif

		if(100 == httpcode) {
		/*
		@@ -409,7 +424,7 @@ Transfer(struct connectdata *c_conn)

		if(!header) {
		/*
		* end-of-headers.
		* really end-of-headers.
		*
		* If we requested a "no body", this is a good time to get
		* out and return home.
		@@ -442,6 +457,10 @@ Transfer(struct connectdata *c_conn)
		continue;
		}

		/*
		* Checks for special headers coming up.
		*/

		if (!headerline++) {
		/* This is the first header, it MUST be the error code line
		or else we consiser this to be the body right away! */
		@@ -585,6 +604,10 @@ Transfer(struct connectdata *c_conn)
		ptr = backup; / restore ending letter */
		}

		/*
		* End of header-checks. Write them to the client.
		*/

		writetype = CLIENTWRITE_HEADER;
		if (data->bits.http_include_header)
		writetype \|= CLIENTWRITE_BODY;
		@@ -792,6 +815,12 @@ Transfer(struct connectdata *c_conn)
		}
		}
		}

		/*
		* The tranfer has been performed. Just make some general checks before
		* returning.
		*/

		if(!(data->bits.no_body) && contentlength &&
		(bytecount != contentlength)) {
		failf(data, "transfer closed with %d bytes remaining to read",