home *** CD-ROM | disk | FTP | other *** search
-
- (c) 1990 S.Hawtin.
- Permission is granted to copy this file provided
- 1) It is not used for commercial gain
- 2) This notice is included in all copies
- 3) Altered copies are marked as such
-
- No liability is accepted for the contents of the file.
-
- README within Public Domain UNIX.lib
-
-
-
- This directory contains the source for the "UNIX" library, this
- implements a few UNIX type functions that are missing from the standard
- 'C' library.
-
- This set of functions follows the older style of file interface for 'C',
- I have included them because you may find a program that needs to call
- these lower level functions to manipulate files.
-
- To use any of these functions you should include the file "unix.h" in
- your source and link the program with a command such as
-
- prog1: foo.o bar.o baz.o
- blink with $*.blink LIB jim:libs/libUNIX.a
-
- in you Makefile, this tells the linker to look in "jim:libs/libUNIX.a" for
- any functions that are used but not defined.
-
- The functions in the library are not quite the same as the UNIX or MSDOS
- functions but they are near enough to work. Once you have your program
- up and running you should change it over to use the ANSI functions, you will
- find it easier to move the program later.
-
- The functions in this library are:
-
- int close(handle)
- APTR handle;
-
- Close the file, this will call the AmigaDOS function Close() on the file
- handle, the value returned will be from Close().
-
- APTR creat(name,mode)
- char *name;
- int mode;
-
- Open the named file, this function will create a new file even if one
- already existed with the given name. This function calls the AmigaDOS
- Open() function.
-
- unsigned int getw(fptr)
- FILE *fptr;
-
- Get the next word from the file, this will just treat the next two bytes
- in the file as an integer. Beware when reading files that were written on
- other machines, for example on the IBM PC, the byte order can make a
- difference.
-
- long lseek(handle,offset,whence)
- APTR handle;
- long offset;
- int whence;
-
- Move the current location within a file, this calls the AmigaDOS Seek()
- function. Note the value of whence uses the UNIX values of 0 1 and 2 not
- the values defined in <stdio.h>.
-
- APTR open(name,mode)
- char *name;
- int mode;
-
- Open a file, this function will either open a new file or an existing file.
- The function of course uses the AmigaDOS Open() function.
-
- int putw(val,fptr)
- int val;
- FILE *fptr;
-
- Put a short word into the file, if you intend to transfer files to other
- machines then beware of the byte order of your processor.
-
- int read(handle,buf,count)
- APTR handle;
- char *buf;
- int count;
-
- Read a block of data from the file into an area of memory. Again the byte
- order may mess you up with foreign files. Not this is an unbuffered read.
-
- long tell(handle)
- APTR handle;
-
- Return the current location of the pointer in the buffer, this is given
- in terms of the number of bytes from the start of the file.
-
- int write(handle,buf,count)
- APTR handle;
- char *buf;
- int count;
-
- Write a block of data from memory to the file, this function uses the
- AmigaDOS Write() function.
-
-
-