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for file in `grep "* including the terms and conditions of this license text as well. \*" * -r --files-with-match `; do sed "s/\* including the terms and conditions of this license text as well. \*/* including the terms and conditions of this license text as well. */g" -i $file; done
288 lines
14 KiB
C
288 lines
14 KiB
C
/***************************************************************************
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* http.h *
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***********************IMPORTANT NMAP LICENSE TERMS************************
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* *
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* The Nmap Security Scanner is (C) 1996-2013 Insecure.Com LLC. Nmap is *
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* also a registered trademark of Insecure.Com LLC. This program is free *
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* software; you may redistribute and/or modify it under the terms of the *
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* GNU General Public License as published by the Free Software *
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* Foundation; Version 2 ("GPL"), BUT ONLY WITH ALL OF THE CLARIFICATIONS *
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* AND EXCEPTIONS DESCRIBED HEREIN. This guarantees your right to use, *
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* modify, and redistribute this software under certain conditions. If *
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* you wish to embed Nmap technology into proprietary software, we sell *
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* alternative licenses (contact sales@nmap.com). Dozens of software *
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* vendors already license Nmap technology such as host discovery, port *
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* scanning, OS detection, version detection, and the Nmap Scripting *
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* Engine. *
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* *
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* Note that the GPL places important restrictions on "derivative works", *
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* yet it does not provide a detailed definition of that term. To avoid *
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* misunderstandings, we interpret that term as broadly as copyright law *
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* allows. For example, we consider an application to constitute a *
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* derivative work for the purpose of this license if it does any of the *
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* following with any software or content covered by this license *
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* ("Covered Software"): *
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* *
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* o Integrates source code from Covered Software. *
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* *
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* o Reads or includes copyrighted data files, such as Nmap's nmap-os-db *
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* or nmap-service-probes. *
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* *
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* o Is designed specifically to execute Covered Software and parse the *
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* results (as opposed to typical shell or execution-menu apps, which will *
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* execute anything you tell them to). *
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* *
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* o Includes Covered Software in a proprietary executable installer. The *
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* installers produced by InstallShield are an example of this. Including *
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* Nmap with other software in compressed or archival form does not *
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* trigger this provision, provided appropriate open source decompression *
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* or de-archiving software is widely available for no charge. For the *
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* purposes of this license, an installer is considered to include Covered *
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* Software even if it actually retrieves a copy of Covered Software from *
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* another source during runtime (such as by downloading it from the *
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* Internet). *
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* *
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* o Links (statically or dynamically) to a library which does any of the *
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* above. *
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* *
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* o Executes a helper program, module, or script to do any of the above. *
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* *
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* This list is not exclusive, but is meant to clarify our interpretation *
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* of derived works with some common examples. Other people may interpret *
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* the plain GPL differently, so we consider this a special exception to *
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* the GPL that we apply to Covered Software. Works which meet any of *
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* these conditions must conform to all of the terms of this license, *
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* particularly including the GPL Section 3 requirements of providing *
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* source code and allowing free redistribution of the work as a whole. *
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* *
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* As another special exception to the GPL terms, Insecure.Com LLC grants *
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* permission to link the code of this program with any version of the *
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* OpenSSL library which is distributed under a license identical to that *
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* listed in the included docs/licenses/OpenSSL.txt file, and distribute *
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* linked combinations including the two. *
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* *
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* Any redistribution of Covered Software, including any derived works, *
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* must obey and carry forward all of the terms of this license, including *
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* obeying all GPL rules and restrictions. For example, source code of *
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* the whole work must be provided and free redistribution must be *
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* allowed. All GPL references to "this License", are to be treated as *
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* including the terms and conditions of this license text as well. *
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* *
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* Because this license imposes special exceptions to the GPL, Covered *
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* Work may not be combined (even as part of a larger work) with plain GPL *
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* software. The terms, conditions, and exceptions of this license must *
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* be included as well. This license is incompatible with some other open *
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* source licenses as well. In some cases we can relicense portions of *
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* Nmap or grant special permissions to use it in other open source *
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* software. Please contact fyodor@nmap.org with any such requests. *
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* Similarly, we don't incorporate incompatible open source software into *
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* Covered Software without special permission from the copyright holders. *
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* *
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* If you have any questions about the licensing restrictions on using *
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* Nmap in other works, are happy to help. As mentioned above, we also *
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* offer alternative license to integrate Nmap into proprietary *
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* applications and appliances. These contracts have been sold to dozens *
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* of software vendors, and generally include a perpetual license as well *
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* as providing for priority support and updates. They also fund the *
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* continued development of Nmap. Please email sales@nmap.com for further *
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* information. *
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* *
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* If you have received a written license agreement or contract for *
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* Covered Software stating terms other than these, you may choose to use *
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* and redistribute Covered Software under those terms instead of these. *
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* *
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* Source is provided to this software because we believe users have a *
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* right to know exactly what a program is going to do before they run it. *
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* This also allows you to audit the software for security holes (none *
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* have been found so far). *
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* *
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* Source code also allows you to port Nmap to new platforms, fix bugs, *
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* and add new features. You are highly encouraged to send your changes *
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* to the dev@nmap.org mailing list for possible incorporation into the *
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* main distribution. By sending these changes to Fyodor or one of the *
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* Insecure.Org development mailing lists, or checking them into the Nmap *
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* source code repository, it is understood (unless you specify otherwise) *
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* that you are offering the Nmap Project (Insecure.Com LLC) the *
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* unlimited, non-exclusive right to reuse, modify, and relicense the *
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* code. Nmap will always be available Open Source, but this is important *
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* because the inability to relicense code has caused devastating problems *
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* for other Free Software projects (such as KDE and NASM). We also *
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* occasionally relicense the code to third parties as discussed above. *
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* If you wish to specify special license conditions of your *
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* contributions, just say so when you send them. *
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* *
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* This program is distributed in the hope that it will be useful, but *
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* WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the Nmap *
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* license file for more details (it's in a COPYING file included with *
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* Nmap, and also available from https://svn.nmap.org/nmap/COPYING *
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* *
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***************************************************************************/
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/* $Id$ */
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#ifndef _HTTP_H
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#define _HTTP_H
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#include "ncat_config.h"
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#include "util.h"
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#include <stdio.h>
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#include <stdlib.h>
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/* This is an abstraction over a socket (really a struct fdinfo) that provides
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rudimentary buffering. It is useful for the line-oriented parts of HTTP. */
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struct socket_buffer {
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struct fdinfo fdn;
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char buffer[BUFSIZ];
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char *p;
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char *end;
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};
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void socket_buffer_init(struct socket_buffer *buf, int sd);
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int socket_buffer_read(struct socket_buffer *buf, char *out, size_t size);
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char *socket_buffer_readline(struct socket_buffer *buf, size_t *n, size_t maxlen);
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int socket_buffer_readcount(struct socket_buffer *buf, char *out, size_t size);
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char *socket_buffer_remainder(struct socket_buffer *buf, size_t *len);
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/* A broken-down URI as defined in RFC 3986, except that the query and fragment
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parts are included in the path. */
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struct uri {
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char *scheme;
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char *host;
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int port;
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char *path;
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};
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void uri_init(struct uri *uri);
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void uri_free(struct uri *uri);
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struct uri *uri_parse(struct uri *uri, const char *uri_s);
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struct uri *uri_parse_authority(struct uri *uri, const char *authority);
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enum http_version {
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HTTP_09,
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HTTP_10,
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HTTP_11,
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HTTP_UNKNOWN,
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};
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struct http_header {
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char *name;
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char *value;
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struct http_header *next;
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};
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struct http_request {
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char *method;
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struct uri uri;
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enum http_version version;
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struct http_header *header;
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unsigned long content_length;
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unsigned long bytes_transferred;
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};
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struct http_response {
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enum http_version version;
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int code;
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char *phrase;
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struct http_header *header;
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unsigned long content_length;
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unsigned long bytes_transferred;
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};
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void http_header_free(struct http_header *header);
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char *http_header_get(const struct http_header *header, const char *name);
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const struct http_header *http_header_next(const struct http_header *header, const struct http_header *p, const char *name);
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char *http_header_get_first(const struct http_header *header, const char *name);
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struct http_header *http_header_set(struct http_header *header, const char *name, const char *value);
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struct http_header *http_header_remove(struct http_header *header, const char *name);
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int http_header_remove_hop_by_hop(struct http_header **header);
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char *http_header_to_string(const struct http_header *header, size_t *n);
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void http_request_init(struct http_request *request);
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void http_request_free(struct http_request *request);
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char *http_request_to_string(const struct http_request *request, size_t *n);
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void http_response_init(struct http_response *response);
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void http_response_free(struct http_response *response);
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char *http_response_to_string(const struct http_response *response, size_t *n);
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int http_read_header(struct socket_buffer *buf, char **result);
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int http_parse_header(struct http_header **result, const char *header);
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int http_request_parse_header(struct http_request *request, const char *header);
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int http_response_parse_header(struct http_response *response, const char *header);
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int http_read_request_line(struct socket_buffer *buf, char **line);
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int http_parse_request_line(const char *line, struct http_request *request);
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int http_read_status_line(struct socket_buffer *buf, char **line);
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int http_parse_status_line(const char *line, struct http_response *response);
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int http_parse_status_line_code(const char *line);
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enum http_auth_scheme { AUTH_UNKNOWN, AUTH_BASIC, AUTH_DIGEST };
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enum http_digest_algorithm { ALGORITHM_MD5, ALGORITHM_UNKNOWN };
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enum http_digest_qop { QOP_NONE = 0, QOP_AUTH = 1 << 0, QOP_AUTH_INT = 1 << 1 };
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struct http_challenge {
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enum http_auth_scheme scheme;
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char *realm;
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struct {
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char *nonce;
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char *opaque;
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enum http_digest_algorithm algorithm;
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/* A bit mask of supported qop values ("auth", "auth-int", etc.). */
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unsigned char qop;
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} digest;
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};
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struct http_credentials {
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enum http_auth_scheme scheme;
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union {
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char *basic;
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struct {
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char *username;
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char *realm;
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char *nonce;
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char *uri;
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char *response;
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enum http_digest_algorithm algorithm;
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enum http_digest_qop qop;
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char *nc;
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char *cnonce;
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} digest;
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} u;
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};
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void http_challenge_init(struct http_challenge *challenge);
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void http_challenge_free(struct http_challenge *challenge);
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struct http_challenge *http_header_get_proxy_challenge(const struct http_header *header, struct http_challenge *challenge);
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void http_credentials_init_basic(struct http_credentials *credentials);
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void http_credentials_init_digest(struct http_credentials *credentials);
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void http_credentials_free(struct http_credentials *credentials);
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struct http_credentials *http_header_get_proxy_credentials(const struct http_header *header, struct http_credentials *credentials);
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#if HAVE_HTTP_DIGEST
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/* Initialize the server secret used in generating nonces. */
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int http_digest_init_secret(void);
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int http_digest_nonce_time(const char *nonce, struct timeval *tv);
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/* Return a Proxy-Authenticate header. */
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char *http_digest_proxy_authenticate(const char *realm, int stale);
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/* Return a Proxy-Authorization header answering the given challenge. */
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char *http_digest_proxy_authorization(const struct http_challenge *challenge,
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const char *username, const char *password,
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const char *method, const char *uri);
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int http_digest_check_credentials(const char *username, const char *realm,
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const char *password, const char *method,
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const struct http_credentials *credentials);
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#endif
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#endif
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