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- Here is a useful little program I just wrote. It is freeware.
-
- This program lets you extract a block of bytes from a file. It puts
- these bytes into another file. The use is fairly obvious, just run the
- program, FILEXTRT, with no param for help.
-
- I am enclosing C source and DOS executalbe, it will compile on DOS
- (Turbo C) or on Unix. When compiling on DOS, make sure the variable
- MSDOS is defined for the C comiple! Nothing special is needed for the
- Unix compile.
-
- I wrote this when a I tried to download a 600K file from a remote
- system. Even at 9600 bps this takes awhile. After 593K the phone lines
- died. I needed a program to split off the last few potentially bad
- bytes from what was already downloaded and to extract the 7K bytes from
- the file end.
-
- Some precautions. After downloading and recombining do a sum -r on both
- sides. (I posted a Unix compatible DOS sum -r program last year). Also
- to combine files on DOS use the "/b" option:
-
- copy /b FILE1 + FILE2 + ... + FILEN FILE.ALL
-
- Richard Marks
- rmarks@MDC.unisys.COM
-
-