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57 lines
1.8 KiB
C
57 lines
1.8 KiB
C
/*
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* LibHTP (http://www.libhtp.org)
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* Copyright 2009,2010 Ivan Ristic <ivanr@webkreator.com>
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*
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* LibHTP is an open source product, released under terms of the General Public Licence
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* version 2 (GPLv2). Please refer to the file LICENSE, which contains the complete text
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* of the license.
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*
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* In addition, there is a special exception that allows LibHTP to be freely
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* used with any OSI-approved open source licence. Please refer to the file
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* LIBHTP_LICENSING_EXCEPTION for the full text of the exception.
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*
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*/
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#include "htp.h"
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/**
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* Determines protocol number from a textual representation (i.e., "HTTP/1.1"). This
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* function will only understand a properly formatted protocol information. It does
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* not try to be flexible.
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*
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* @param protocol
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* @return Protocol version or PROTOCOL_UKNOWN.
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*/
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int htp_parse_protocol(bstr *protocol) {
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if (protocol != NULL && bstr_len(protocol) == 8) {
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char *ptr = bstr_ptr(protocol);
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if ((ptr[0] == 'H') && (ptr[1] == 'T') && (ptr[2] == 'T') && (ptr[3] == 'P')
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&& (ptr[4] == '/') && (ptr[6] == '.')) {
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// Check the version numbers
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if (ptr[5] == '0') {
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if (ptr[7] == '9') {
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return HTTP_0_9;
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}
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} else if (ptr[5] == '1') {
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if (ptr[7] == '0') {
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return HTTP_1_0;
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} else if (ptr[7] == '1') {
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return HTTP_1_1;
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}
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}
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}
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}
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return PROTOCOL_UNKNOWN;
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}
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/**
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* Determines the numerical value of a response status given as a string.
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*
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* @param status
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* @return Status code on success, or -1 on error.
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*/
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int htp_parse_status(bstr *status) {
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return htp_parse_positive_integer_whitespace((unsigned char *)bstr_ptr(status), bstr_len(status), 10);
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}
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