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- /*****************************************************************************
- * SEAlink - Sliding window file transfer protocol
- *
- * @(#) sealink.c 2.9 89/03/02
- * UNIX SVR2 and BSD versions by Scott Reynolds
- *
- * Based on:
- * MS-DOS Version 1.20, created on 08/05/87 at 17:51:40
- * (C)COPYRIGHT 1986,87 by System Enhancement Associates; ALL RIGHTS RESERVED
- * By: Thom Henderson
- *
- * Description:
- * This is the history of the SEAlink program from present back
- * to the first working version. Many thanks to Sandy Zelkovitz
- * (alphacm!sandy) for his help in getting it to run under SCO XENIX/286
- * and to the faculty at Northern Michigan University for allowing
- * the use of their VAX lab to develop the BSD code.
- *
- ****************************************************************************/
-
- 2.9 89/03/02 21:11:01 scott
- Handle case where temporary and specified files are on different filesystems
-
- 2.8 88/10/22 03:40:15 scott
- Add switch for CRC method (table or calculation); future-minded changes made
-
- 2.7 88/08/04 11:19:45 scott
- take out #include <sys/timeb.h> -- it's useless
-
- 2.6 88/07/11 19:49:54 scott
- added short block debug error message
-
- 2.5 88/07/09 17:47:18 scott
- remove -1 option, all writes go to fd 1 and all reads come from fd 0;
- nap() used in com_getc() if NO_NAP is undefined (better XMODEM compatibility);
- mktemp() is employed to get a guaranteed unique temporary filename;
- a CRC lookup table is employed for better execution time
-
- 2.4 88/03/30 11:44:28 scott
- use getopt() for options; clean it up a bit
-
- 2.3 88/02/06 14:01:51 scott
- Correct final fwrite() call -- pass it an integer rather than long!
-
- 2.2 88/02/06 01:27:57 scott
- added block file output to rcvfile()
-
- 2.1 88/02/04 19:40:22 scott
- Update version number to reflect BSD additions; put in uucp address
-
- 1.23 88/02/04 19:26:41 scott
- Added BSD UNIX calls, slicked it up a little bit
-
- 1.22 87/10/07 01:56:17 scott
- "o" option added for disabling overdrive mode
-
- 1.21 87/10/05 01:37:18 scott
- Based on MS-DOS ver 1.20; ACKless mode added
-
- 1.20 87/10/02 09:17:18 scott
- memset() call in sendblk() fixed
-
- 1.19 87/09/30 00:12:59 scott
- NAKEOT is defined now, it really has purpose.
-
- 1.18 87/09/23 00:03:15 scott
- receiver gets a between-file delay too
-
- 1.17 87/09/20 20:37:33 scott
- more receiver filename debugging
-
- 1.16 87/09/20 20:02:59 scott
- fixed receive when no filename given
-
- 1.15 87/09/20 19:14:22 scott
- added check for writable file when receiving and better abort check
-
- 1.14 87/09/17 23:24:48 scott
- delay added in main's xmtfile() loop
-
- 1.13 87/09/17 00:27:02 scott
- sendabort() flushes output before sending abort sequence
-
- 1.12 87/09/16 12:47:04 scott
- minor cosmetic changes...
-
- 1.11 87/09/16 00:10:49 scott
- cleaned up generally using lint(1)
-
- 1.10 87/09/15 23:31:28 scott
- sendabort() uses ^X; memset(), final ioctl() calls fixed;
- SYSV replaces IBMXENIX and UNIX flags
-
- 1.9 87/09/15 12:37:46 scott
- expanded to support full pathnames, portability increased
-
- 1.8 87/09/13 12:51:38 scott
- filename conversion handled correctly; more EOT experimenting
-
- 1.7 87/09/13 03:13:58 scott
- endrcv in rcvfile(): forgot EOT message is for debug only
-
- 1.6 87/09/13 02:43:47 scott
- remove EOT NAK from receiver! Useless, screws it up...
-
- 1.5 87/09/13 01:26:17 scott
- ACKing EOF didn't work. NAK again, back to original...
-
- 1.4 87/09/12 01:50:10 scott
- endrcv: NAK of EOT doesn't work so hot. Try ACKing it
-
- 1.3 87/09/12 00:45:23 scott
- com_getc() modified for straight Sys V calls, ackchk() reflects this
-
- 1.2 87/09/04 20:57:12 scott
- SCO/IBM differences eliminated; code cleaned up a bit
-
- 1.1 87/09/02 23:31:14 scott
- date and time created 87/09/02 23:31:14 by scott
-
-