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Commit ae9c64df authored by rswindell's avatar rswindell
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Initial check-in: v2.30b (for DOS and OS/2) release (circa 1997).

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Synchronet Message Base Specification Modification History
==========================================================
******************************
01/20/94 Initial Release v1.00
******************************
Quite a few spelling errors in SMB.TXT corrected.
Estimated maximum number of messages (in Introduction of SMB.TXT) formula
corrected (1500 rounded to nearest 256 is 1536, not 2048).
Pages 32 and 38 (SENDEREXT and RECIPIENTEXT header field types) incorrectly
stated the index record contains CRC-32s, when in fact the index contains
CRC-16s of the agent names or extensions.
FORWARDTO header field types incorrectly stated they were for replies, rather
than forwarding instructions.
Trigger header field types incorrectly stated they were "attachments" rather
than triggers.
Bug fixed in smb_open() function in smblib.c: was allocating buffer via
setvbuf for wrong file pointer when opening header file. Caused loss of
memory (2k) everytime smb_open() was called.
Bug fixed in smb_getmsghdr() function in smblib.c: msg->from_agent,to_agent,
and replyto_agent were not initialized properly.
Added from_ext, to_ext, and replyto_ext fields to msg struct. Initialized
with call to smb_getmsghdr() function. These are convenience pointers for
the to, from, and replyto agent extensions (user numbers, usually).
Fixed a nasty bug in the smb_freemsgdat() function, causing odd values in the
SDA file and cross-linked messages when fast allocation mode was not used for
new messages.
smb_putmsghdr() function replaced by smb_putmsg() and it calls smb_putmsghdr()
and smb_putmsgidx() - previously smb_putmsghdr() actually wrote the header
and the index. So you must change any occurances of smb_putmsghdr() to
smb_putmsg() if you intend to write to both the index and header records.
smb_open() now takes a "retry_time" parameter (number of seconds) to lock
and read the message base header and verify the "id" and "version". Added
new error codes: -1 indicates failure to lock message base header, -2 indicates
id mismatch, and -3 indicates incompatible message base version.
rewind() and clearerr() calls added to library functions to eliminate the
problem of "sticky" error flags when using fread() and fwrite(). Reordered
the use of chsize() to force seeking (with fseek()) before using the file
descriptor operation (chsize()) would would fail under some circumstances.
smb_getmsgidx() function now uses "fast" message number look-up algorythm.
Added smb_getlastidx() function to retrieve the last index in the message
base.
Allocation strategy for hfield and dfield elements of the smbmsg_t structure
were changed to require less memory. Rather than an array of pointers (pointer
to a pointer) of type hfield_t or dfield_t, they are simply an array (pointer)
of type hfield_t or dfield_t. The only change you need to make are any
references to "smbmsg_t.hfield[x]->etc" to "smbmsg_t.hfield[x].etc".
Added several new error codes to smb_getmsghdr(). -7 indicates missing one
of the three mandatory header fields (sender, recipient, or subject). -8
indicates that total_dfields element of smbhdr_t is incorrect (extends beyond
smbhdr_t.length). -9 indicates incompatible header version.
New error code to smb_addcrc(), -4 indicates error getting length of file.
smb_putmsghdr() returns -2 on failure write header, -3 on failure to write
dfield, -4 on failure to write hfield (fixed), -5 on failure to write hfield
(data), and -6 on failure to pad record with NULLs.
Bugs fixed in sample conversion source code and SMBUTIL: Overwriting first
two bytes of next record when using self-packing storage, SBBSFIDO would
crash on blank kludge lines, SEEN-BYs weren't converted properly by SBBSFIDO,
and more.
*** IMPORTANT ***
Index format changed, added message time field to idxrec_t for fast pointer
manipulation by (import) date/time stamp. This is SMB format v1.10 and is
not compatible with the v1.00 format. A conversion program (100TO110.EXE)
is included with source code for converted any existing message bases.
CHKSMB, a utility for checking message bases for corruption, included with
SMBLIB.
SMBUTIL and CHKSMB both accept wildcard arguments for processing multiple
message bases.
idxrec_t.to and idxrec_t.from may contain USER NUMBER instead of CRC of user
names. This implementation is currently specific to E-mail boxes on Synchronet
BBS. E-mail from non-local users are stored with a "from" field of 0.
**********************
03/28/94 Release v1.10
**********************
Forgot to include this file (oops).
***********************
03/28/94 Release v1.10a
***********************
Fixed problem with buffered fread() routine attempting to read into a locked
regions.
Added smb_stack() function for saving (pushing) currently open message base
and ability to pop it off later.
Added fix for keeping original sender information in smbmsg_t structure when
a message has been forwarded.
CHKSMB now correctly support multiple destination messages (without reporting
missallocated active data blocks) and now reports packable bytes available.
SMBUTIL can now conditionally compress a message base, only if so many K are
compressable.
Fixed problem with incorrect UTC value.
Added NET_WWIV network type.
**********************
06/02/94 Release v1.11
**********************
Created Watcom compatible MAKEFILE for DOS, 32-bit DOS, and 32-bit OS/2
versions of SMBUTIL.
Enhanced macro definitions in SMBDEFS.H for MALLOC, FREE, and REALLOC to
support Watcom and other compilers other than Borland. Also added LMALLOC
and LFREE macros for large allocation (>64k) operations.
Fixed problem with multiple calls to setvbuf() when using Watcom C libraries.
Memory allocated by setvbuf() would never be released. To work around this
Watcom C bug, a static buffer, shd_buf[], is now used instead.
Fixed bug in smb_getmsghdr() that would cause it to return -6 when attempting
to allocate 0 length header fields.
Added LZH.C to SMBLIB for message data compression/decompression.
Removed the 16-bit CRC functions from SMBUTIL and put them in CRC16.C (now part
of SMBLIB) for easier integration into other applications.
Added Hyper Allocation storage method to specification: smbstatus_t.reserved
changed to smbstatus_t.attr and SMB_HYPERALLOC bit is set when Hyper Allocation
storage is used for a message base. This is the only change between v1.10 and
v1.20 of the message base format. No other bits in smbstatus_t.attr are
currently defined. See the specification for definition of the Hyper Allocation
storage method.
Changed SMB Storage and Retrieval Protocol chapters in the specification to
Pseudo-code examples.
Added SMBLIB Storage and Retrieval C example chapters to the specification.
Added field descriptions for message base header record fields and Status Info
(base header #1) record fields to the specification.
Changed SMBLIB smb_addmsghdr() 'fast' argument to 'storage' to specify the
storage method to use (either SMB_SELFPACK, SMB_FASTALLOC, or SMB_HYPERALLOC).
Previous usage (0 for self-pack, 1 for fast) still compatible.
Added smb_hallocdat() and smb_hallochdr() to SMBLIB functions for the Hyper
Allocation storage method.
Added SMB_STACK_XCHNG operation to smb_stack() function, to exchange the top
of the stack with the currently open message base.
**********************
02/14/95 Release v1.20
**********************
smb_close() was modified in the following ways:
Only attempts to close non-NULL file pointers
If shd_fp is currently open, calls smb_unlocksmbhdr() before closing
(just in case it was left locked by application)
smb_open() was modified in the following ways:
Initializes all file pointers to NULL
calls smb_close() if any of the files couldn't be opened
smb_locksmbhdr() was modified in the following ways:
If lock fails, attempts to unlock the header before next lock
attempt (just incase application attempts to lock a locked
header without first unlocking it)
smb_lockmsghdr() was modified in the following ways:
If lock fails, attempts to unlock the header before next lock
attempt (same reason stated above)
CHKSMB (1.21) was modified in the following ways:
Tests for valid translations strings in the .SDT files
Displays totals for bytes used by header and data blocks, bytes used
by deleted messages, and bytes saved by LZH compression
SMBUTIL (1.21) underwent some minor cosmetic changes.
***********************
03/18/95 Release v1.20a
***********************
SMBUTIL (1.22) now compiles correctly under Watcom, using correct time zone
information. SMBUTIL maint() will no longer delete messages if max_age is
specified in the SMB header and the when_imported time for a message is in the
future.
Fixed problem in LZH.C that would cause lzh_decode() to generate exception
errors when compiled with a 32-bit compiler.
CHKSMB (1.22) now supports /E command line switch to display extended
information about corrupted messages. CHKSMB.C is now Watcom compatible.
Added fflush() calls to all smblib functions that write to the SDT, SHA, or SDA
files. This eliminates the problem of duplicate data offsets (data blocks for
multiple messages pointing to the same location) causing corrupted SDT files
(unsupported translation types reported by CHKSMB).
Added fflush() call after writing to SDT file in SMB_PUT example in SMB.TXT.
Fixed example *2SMB.C files to be compatible with SMBLIB v1.20 smb_create()
function.
Fixed smb_hallocdat() function prototype to stop redeclaration warnings.
Minor typos in specification fixed.
***********************
04/24/95 Release v1.20b
***********************
Added SMB_EMAIL (1<<0) attribute definition for the message base status header
to specify a local e-mail message base where index "to" and "from" fields are
stored as user numbers, not CRC-16s (this is the only change between v1.20
and v1.21 of the SMB format).
Version 1.21 of FIXSMB no longer needs the "/M" switch to correctly fix a
Synchronet e-mail message base (as long as the SMB_EMAIL status attr is set).
Version 1.23 of SMBUTIL can now import text into a Synchronet e-mail message
base (as long as the SMB_EMAIL status attr has been set). It will ask for the
sender and recipient user numbers. Fixed an apparently nasty bug that would
cause damage to message bases when (I)mporting (check for SMB_HYPERALLOC
attribute was backwards). Excess baggage in the SMBUTIL source code was also
removed (no longer supports /L, /F, and /D command line switches). Only
supports self-packing and hyper-allocated message bases (it will not damage
fast allocated bases, however). "SMBUTIL M" now correctly handles message bases
that contain messages that have been pre-flagged for deletion (MSG_DELETE attr
set).
Changed smb_open(int retry_count) function: if retry_count is 0, then a "fast
open" method is used which doesn't lock and read the status header to check
for compatibility and validity of message base.
Added SMBLIB_VERSION definition (string constant) to contain the current
version and revision (if applicable) of the SMB library. This version number
may not always be the same as SMB_VERSION (version of the SMB format) or the
current version of the specification. It may be helpful to include a display
of this version number somewhere in your application (i.e. printf("SMBLIB v%s"
,SMBLIB_VERSION);).
Changed smb_stack() example in the Performance Issues chapter to keep two
message bases always open using SMB_STACK_XCHNG.
Fixed bug in SMBUTIL that would cause an infinite loop when analysing an
extrememly corrupted HyperAllocated message base.
Fixed bug in smb_stack() function when using SMB_STACK_XCHNG operation. Would
previously set current message base to an undefined message base, rather than
the message base on top of the stack (last pushed or exchanged).
CHKSMB v1.22 compiled in the 1.20b release did not support wildcards (wasn't
linked with WILDARGS.OBJ) - this has been fixed and is the only change in
CHKSMB v1.23.
**********************
05/31/95 Release v1.21
**********************
Add uchar forwarded element to smbmsg_t structure. This variable is initialized
by the smb_getmsghdr() function. If the message has been forwarded, it will
be set to non-zero.
Fixed bug in LZH.C which caused lzh_decode() to produce incorrect results
(usually t's and spaces) when compiled with a 32-bit compiler.
Added HUGE16 and FAR16 macros to SMBDEFS.H for huge and far pointers for
16-bit compilers only (default pointer type for 32-bit compilers).
Fixed bug in FIXSMB.C that would initialize the SDA file to the wrong length.
Added net type NET_MHS for MHS gateways.
SMBUTIL (1.24) will no longer free deleted headers when maintaining a message
base if the /A (no analysis) command line switch is used. This speeds up the
message base maintenance/pack operation significantly by using: SMBUTIL /A MP
***********************
08/31/95 Release v1.21a
***********************
All smb_*() functions changed to accept pointers to an smb_t structure. This
eliminates the use of global variables (making DLLs difficult or impossible
to program). A pointer is used even if the function doesn't modify the data
to maintain a consistent API and compatibility with languages that don't
support the passing of user defined types by value (e.g. Visual Basic).
The smb_t structure contains a retry_time element that defines the maximum
number of seconds to wait while trying to open a locked message base or record.
If this element of the passed smb_t variable is 0, a default value of 10
seconds is used.
Added smb_getmsgtxt() and smb_freemsgtxt() functions to SMBLIB.C (only included
if SMB_GETMSGTXT is defined).
*******************
11/18/95 Beta v2.00
*******************
Bug in smb_getmsgtxt() with message data field lengths less than 2.
**********************
03/22/96 Release v2.01
**********************
src/sbbs2/smb/docs/smb.src 0 → 100644
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src/sbbs2/smb/docs/smb_read.me 0 → 100644
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Synchronet Message Base (SMB) Specification v2.01 - READ.ME -
=============================================================
Files:
Miscellaneous
-------------
SMB_READ.ME This file
FILE_ID.DIZ Description of archive
SMB.HST History of changes made since v1.00
Technical Specification
-----------------------
SMB.PRN Paginated, to be printed at 12cpi (!)
SMB.TXT Not paginated, for online viewing
Message Base C Library
----------------------
SMBDEFS.H C data types and constants
SMBLIB.H C function prototypes
SMBLIB.C C library functions
CRC32.H C header file for 32-bit CRC calculations
CRC16.C C source file for 16-bit CRC calculations
LZH.H C header file for LZH compression functions
LZH.C C source file for LZH compression functions
Message Base Utility
--------------------
SMBUTIL.H C header file
SMBUTIL.C C source file
SMBUTIL.BOR C makefile (for Borland C: make -f smbutil.bor)
SMBUTIL.WAT C makefile (for Watcom C: wmake -f smbutil.wat
32-bit OS2: wmake -f smbutil.wat OS=OS2
32-bit DOS: wmake -f smbutil.wat OS=DOSX)
SMBUTIL.EXE Compiled and linked for 16-bit DOS
Check Message Base for Corruption
---------------------------------
CHKSMB.C C source file
CHKSMB.MAK C makefile (for Borland C: make -f chksmb)
CHKSMB.EXE Compiled and linked for 16-bit DOS
Rebuild Message Base Index and Allocation Files
-----------------------------------------------
FIXSMB.C C source file
FIXSMB.MAK C makefile (for Borland C: make -f fixsmb)
FIXSMB.EXE Compiled and linked for 16-bit DOS
Convert from FidoNet (FTSC-1) to SMB
------------------------------------
FIDO2SMB.C C source file
FIDO2SMB.MAK C makefile (for Borland C: make -f fido2smb)
Convert from Internet (RFC-822) to SMB
--------------------------------------
INET2SMB.C C source file
INET2SMB.MAK C makefile (for Borland C: make -f inet2smb)
Convert from QWK to SMB
-----------------------
QWK2SMB.C C source file
QWK2SMB.MAK C makefile (for Borland C: make -f qwk2smb)
/* END of SMB_READ.ME */
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