Annotation of win32/apache13/src/include/ap_mmn.h, revision 1.1.1.1

1.1       parser      1: /* ====================================================================
                      2:  * Copyright (c) 1998-1999 The Apache Group.  All rights reserved.
                      3:  *
                      4:  * Redistribution and use in source and binary forms, with or without
                      5:  * modification, are permitted provided that the following conditions
                      6:  * are met:
                      7:  *
                      8:  * 1. Redistributions of source code must retain the above copyright
                      9:  *    notice, this list of conditions and the following disclaimer. 
                     10:  *
                     11:  * 2. Redistributions in binary form must reproduce the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer in
                     13:  *    the documentation and/or other materials provided with the
                     14:  *    distribution.
                     15:  *
                     16:  * 3. All advertising materials mentioning features or use of this
                     17:  *    software must display the following acknowledgment:
                     18:  *    "This product includes software developed by the Apache Group
                     19:  *    for use in the Apache HTTP server project (http://www.apache.org/)."
                     20:  *
                     21:  * 4. The names "Apache Server" and "Apache Group" must not be used to
                     22:  *    endorse or promote products derived from this software without
                     23:  *    prior written permission. For written permission, please contact
                     24:  *    apache@apache.org.
                     25:  *
                     26:  * 5. Products derived from this software may not be called "Apache"
                     27:  *    nor may "Apache" appear in their names without prior written
                     28:  *    permission of the Apache Group.
                     29:  *
                     30:  * 6. Redistributions of any form whatsoever must retain the following
                     31:  *    acknowledgment:
                     32:  *    "This product includes software developed by the Apache Group
                     33:  *    for use in the Apache HTTP server project (http://www.apache.org/)."
                     34:  *
                     35:  * THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
                     36:  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     37:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
                     38:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE APACHE GROUP OR
                     39:  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
                     40:  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
                     41:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
                     42:  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     43:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
                     44:  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
                     45:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
                     46:  * OF THE POSSIBILITY OF SUCH DAMAGE.
                     47:  * ====================================================================
                     48:  *
                     49:  * This software consists of voluntary contributions made by many
                     50:  * individuals on behalf of the Apache Group and was originally based
                     51:  * on public domain software written at the National Center for
                     52:  * Supercomputing Applications, University of Illinois, Urbana-Champaign.
                     53:  * For more information on the Apache Group and the Apache HTTP server
                     54:  * project, please see <http://www.apache.org/>.
                     55:  *
                     56:  */
                     57: 
                     58: #ifndef APACHE_AP_MMN_H
                     59: #define APACHE_AP_MMN_H
                     60: 
                     61: /*
                     62:  * MODULE_MAGIC_NUMBER_MAJOR
                     63:  * Major API changes that could cause compatibility problems for older modules
                     64:  * such as structure size changes.  No binary compatibility is possible across
                     65:  * a change in the major version.
                     66:  *
                     67:  * MODULE_MAGIC_NUMBER_MINOR
                     68:  * Minor API changes that do not cause binary compatibility problems.
                     69:  * Should be reset to 0 when upgrading MODULE_MAGIC_NUMBER_MAJOR.
                     70:  *
                     71:  * See the MODULE_MAGIC_AT_LEAST macro below for an example.
                     72:  */
                     73: 
                     74: /*
                     75:  * 19950525            - original value
                     76:  * 19960512 (1.1b2)    - updated, 1.1, version.
                     77:  * 19960526 (1.1b3)    - get_token(), table_unset(), pstrndup()
                     78:  *                       functions added
                     79:  * 19960725 (1.2-dev)  - HTTP/1.1 compliance
                     80:  *                       (new version of read_client_block)
                     81:  * 19960806 (1.2-dev)  - scan_script_header_err() added
                     82:  * 19961007 (1.2-dev)  - replace read_client_block() with get_client_block()
                     83:  * 19961125 (1.2b1)    - change setup_client_block() to Roy's version
                     84:  * 19961211 (1.2b3)    - rwrite() added
                     85:  * 19970103 (1.2b5-dev)        - header parse API
                     86:  * 19970427 (1.2b9-dev)        - port references made unsigned
                     87:  * 19970526 (1.2)      - correct vhost walk for multiple requests on a single
                     88:  *                       connect
                     89:  * 19970623 (1.3-dev)  - NT changes
                     90:  * 19970628 (1.3-dev)  - ap_slack (fd fixes) added
                     91:  * 19970717 (1.3-dev)  - child_init API hook added
                     92:  * 19970719 (1.3-dev)  - discard_request_body() added (to clear the decks
                     93:  *                       as needed)
                     94:  * 19970728 (1.3a2-dev)        - child_exit API hook added
                     95:  * 19970818 (1.3a2-dev)        - post read-request phase added
                     96:  * 19970825 (1.3a2-dev)        - r->mtime cell added
                     97:  * 19970831 (1.3a2-dev)        - error logging changed to use aplog_error()
                     98:  * 19970902 (1.3a2-dev)        - MD5 routines and structures renamed to ap_*
                     99:  * 19970912 (1.3b1-dev)        - set_last_modified split into set_last_modified,
                    100:  *                       set_etag and meets_conditions
                    101:  *                       register_other_child API
                    102:  *                       piped_log API
                    103:  *                       short_score split into parent and child pieces
                    104:  *                       os_is_absolute_path
                    105:  * 19971026 (1.3b3-dev)        - custom config hooks in place
                    106:  * 19980126 (1.3b4-dev)        - ap_cpystrn(), table_addn(), table_setn(),
                    107:  *                       table_mergen()
                    108:  * 19980201 (1.3b4-dev)        - construct_url()
                    109:  *                       prototype server_rec * -> request_rec *
                    110:  *                       add get_server_name() and get_server_port()
                    111:  * 19980207 (1.3b4-dev)        - add dynamic_load_handle to module structure as part
                    112:  *                       of the STANDARD_MODULE_STUFF header
                    113:  * 19980304 (1.3b6-dev)        - abstraction of SERVER_BUILT and SERVER_VERSION
                    114:  * 19980305 (1.3b6-dev)        - ap_config.h added for use by external modules
                    115:  * 19980312 (1.3b6-dev)        - parse_uri_components() and its ilk
                    116:  *                       remove r->hostlen, add r->unparsed_uri
                    117:  *                       set_string_slot_lower()
                    118:  *                       clarification: non-RAW_ARGS cmd handlers do not
                    119:  *                       need to pstrdup() their arguments
                    120:  *                       clarification: request_rec members content_type,
                    121:  *                       handler, content_encoding, content_language,
                    122:  *                       content_languages MUST all be lowercase strings,
                    123:  *                       and MAY NOT be modified in place -- modifications
                    124:  *                       require pstrdup().
                    125:  * 19980317 (1.3b6-dev)        - CORE_EXPORTs for win32 and <Perl>
                    126:  *                       API export basic_http_header, send_header_field,
                    127:  *                       set_keepalive, srm_command_loop, check_cmd_context,
                    128:  *                       tm2sec
                    129:  *                       spacetoplus(), plustospace(), client_to_stdout()
                    130:  *                       removed
                    131:  * 19980324 (1.3b6-dev)        - API_EXPORT(index_of_response)
                    132:  * 19980413 (1.3b6-dev)        - The BIG SYMBOL RENAMING: general ap_ prefix
                    133:  *                       (see src/include/compat.h for more details)
                    134:  *                       ap_vformatter() API, see src/include/ap.h
                    135:  * 19980507 (1.3b7-dev)        - addition of ap_add_version_component() and
                    136:  *                       discontinuation of -DSERVER_SUBVERSION support
                    137:  * 19980519 (1.3b7-dev)        - add child_info * to spawn function (as passed to
                    138:  *                       ap_spawn_child_err_buff) and to ap_call_exec to make
                    139:  *                       children work correctly on Win32.
                    140:  * 19980527 (1.3b8-dev)        - renamed some more functions to ap_ prefix which were
                    141:  *                       missed at the big renaming (they are defines):
                    142:  *                       is_default_port, default_port and http_method.
                    143:  *                       A new communication method for modules was added:
                    144:  *                       they can create customized error messages under the
                    145:  *                       "error-notes" key in the request_rec->notes table.
                    146:  *                       This string will be printed in place of the canned
                    147:  *                       error responses, and will be propagated to
                    148:  *                       ErrorDocuments or cgi scripts in the
                    149:  *                       (REDIRECT_)ERROR_NOTES variable.
                    150:  * 19980627 (1.3.1-dev)        - More renaming that we forgot/bypassed. In particular:
                    151:  *                       table_elts --> ap_table_elts
                    152:  *                       is_table_empty --> ap_is_table_empty
                    153:  * 19980708 (1.3.1-dev)        - ap_isalnum(), ap_isalpha(), ... "8-bit safe" ctype
                    154:  *                       macros and apctype.h added
                    155:  * 19980713 (1.3.1-dev)        - renaming of C header files:
                    156:  *                       1. conf.h      -> ap_config.h
                    157:  *                       2. conf_auto.h -> ap_config_auto.h - now merged
                    158:  *                       3. ap_config.h -> ap_config_auto.h - now merged
                    159:  *                       4. compat.h    -> ap_compat.h
                    160:  *                       5. apctype.h   -> ap_ctype.h
                    161:  * 19980806 (1.3.2-dev) - add ap_log_rerror()
                    162:  *                      - add ap_scan_script_header_err_core()
                    163:  *                      - add ap_uuencode()
                    164:  *                      - add ap_custom_response()
                    165:  * 19980811 (1.3.2-dev)        - added limit_req_line, limit_req_fieldsize, and
                    166:  *                       limit_req_fields to server_rec.
                    167:  *                       added limit_req_body to core_dir_config and
                    168:  *                       ap_get_limit_req_body() to get its value.
                    169:  * 19980812 (1.3.2-dev)        - split off MODULE_MAGIC_NUMBER
                    170:  * 19980812.2           - add ap_overlap_tables()
                    171:  * 19980816 (1.3.2-dev)        - change proxy to use tables for headers, change
                    172:  *                        struct cache_req to typedef cache_req.
                    173:  *                        Delete ap_proxy_get_header(), ap_proxy_add_header(),
                    174:  *                        ap_proxy_del_header(). Change interface of 
                    175:  *                        ap_proxy_send_fb() and ap_proxy_cache_error(). 
                    176:  *                        Add ap_proxy_send_hdr_line() and ap_proxy_bputs2().
                    177:  * 19980825 (1.3.2-dev) - renamed is_HTTP_xxx() macros to ap_is_HTTP_xxx()
                    178:  * 19980825.1           - mod_proxy only (minor change): modified interface of
                    179:  *                        ap_proxy_read_headers() and rdcache() to use a
                    180:  *                        request_rec* instead of pool*
                    181:  *                        (for implementing better error reporting).
                    182:  * 19980906 (1.3.2-dev) - added ap_md5_binary()
                    183:  * 19980917 (1.3.2-dev) - bs2000: changed os_set_authfile() to os_set_account()
                    184:  * 19981108 (1.3.4-dev) - added ap_method_number_of()
                    185:  *                      - changed value of M_INVALID and added WebDAV methods
                    186:  * 19981108.1           - ap_exists_config_define() is now public (minor bump)
                    187:  * 19981204             - scoreboard changes -- added generation, changed
                    188:  *                        exit_generation to running_generation.  Somewhere
                    189:  *                        earlier vhostrec was added, but it's only safe to use
                    190:  *                        as of this rev.  See scoreboard.h for documentation.
                    191:  * 19981211             - DSO changes -- added ap_single_module_configure()
                    192:  *                                    -- added ap_single_module_init()
                    193:  * 19981229             - mod_negotiation overhaul -- added ap_make_etag()
                    194:  *                        and added vlist_validator to request_rec.
                    195:  * 19990101             - renamed macro escape_uri() to ap_escape_uri()
                    196:  *                      - added MODULE_MAGIC_COOKIE to identify module structs
                    197:  * 19990103 (1.3.4-dev) - added ap_array_pstrcat()
                    198:  * 19990105 (1.3.4-dev) - added ap_os_is_filename_valid()
                    199:  * 19990106 (1.3.4-dev) - Move MODULE_MAGIC_COOKIE to the end of the
                    200:  *                        STANDARD_MODULE_STUFF macro so the version
                    201:  *                        numbers and file name remain at invariant offsets
                    202:  * 19990108 (1.3.4-dev) - status_drops_connection -> ap_status_drops_connection
                    203:  *                        scan_script_header -> ap_scan_script_header_err
                    204:  *                      - reordered entries in request_rec that were waiting
                    205:  *                        for a non-binary-compatible release.
                    206:  *          (1.3.5-dev)
                    207:  * 19990108.1           - add ap_MD5Encode() for MD5 password handling.
                    208:  * 19990108.2           - add ap_validate_password() and change ap_MD5Encode()
                    209:  *                        to use a stronger algorithm.
                    210:  * 19990108.4           - add ap_size_list_item(), ap_get_list_item(), and
                    211:  *                        ap_find_list_item()
                    212:  * 19990108.5           - added ap_sub_req_method_uri() and added const to the
                    213:  *                        definition of method in request_rec.
                    214:  * 19990108.6           - SIGPIPE is now ignored by the core server.
                    215:  * 19990108.7           - ap_isxdigit added
                    216:  * 19990320             - METHODS and M_INVALID symbol values modified
                    217:  * 19990320.1           - add ap_vrprintf()
                    218:  * 19990320.2           - add cmd_parms.context, ap_set_config_vectors, 
                    219:  *                        export ap_add_file_conf
                    220:  * 19990320.3           - add ap_regexec() and ap_regerror()
                    221:  * 19990320.4           - add ap_field_noparam()
                    222:  * 19990320.5           - add local_ip/host to conn_rec for mass-vhost
                    223:  * 19990320.6           - add ap_SHA1Final(), ap_SHA1Init(),
                    224:  *                        ap_SHA1Update_binary(), ap_SHA1Update(),
                    225:  *                        ap_base64encode(), ap_base64encode_binary(),
                    226:  *                        ap_base64encode_len(), ap_base64decode(),
                    227:  *                        ap_base64decode_binary(), ap_base64decode_len(),
                    228:  *                        ap_pbase64decode(), ap_pbase64encode()
                    229:  * 19990320.7           - add ap_strcasestr()
                    230:  * 19990320.8           - add request_rec.case_preserved_filename
                    231:  * 19990320.9           - renamed alloc.h to ap_alloc.h
                    232:  * 19990320.10          - add ap_is_rdirectory() and ap_stripprefix()
                    233:  */
                    234: 
                    235: #define MODULE_MAGIC_COOKIE 0x41503133UL /* "AP13" */
                    236: 
                    237: #ifndef MODULE_MAGIC_NUMBER_MAJOR
                    238: #define MODULE_MAGIC_NUMBER_MAJOR 19990320
                    239: #endif
                    240: #define MODULE_MAGIC_NUMBER_MINOR 10                    /* 0...n */
                    241: 
                    242: /* Useful for testing for features. */
                    243: #define AP_MODULE_MAGIC_AT_LEAST(major,minor)          \
                    244:     ((major) < MODULE_MAGIC_NUMBER_MAJOR               \
                    245:        || ((major) == MODULE_MAGIC_NUMBER_MAJOR        \
                    246:            && (minor) <= MODULE_MAGIC_NUMBER_MINOR))
                    247: 
                    248: /*
                    249:  * For example, suppose you wish to use the ap_overlap_tables
                    250:  * function.  You can do this:
                    251:  *
                    252:  * #if AP_MODULE_MAGIC_AT_LEAST(19980812,2)
                    253:  *    ... use ap_overlap_tables()
                    254:  * #else
                    255:  *    ... alternative code which doesn't use ap_overlap_tables()
                    256:  * #endif
                    257:  *
                    258:  */
                    259: 
                    260: /* deprecated. present for backwards compatibility */
                    261: #define MODULE_MAGIC_NUMBER MODULE_MAGIC_NUMBER_MAJOR
                    262: #define MODULE_MAGIC_AT_LEAST old_broken_macro_we_hope_you_are_not_using
                    263: 
                    264: #endif /* !APACHE_AP_MMN_H */

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