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buffer_init(3)		   Library Functions Manual		buffer_init(3)

NAME
       buffer_init - initialize	buffer structure

SYNTAX
       #include	<libowfat/buffer.h>

       void buffer_init(buffer &b,
		       ssize_t (*op)(int,char*,size_t),
		       int fd, char* y,	size_t ylen);

DESCRIPTION
       buffer_init prepares b to store a string	in y[0], y[1], ..., y[ylen-1].
       Initially the string is empty.

       buffer_init  also  prepares b to	use the	read/write operation specified
       by op and fd.

       You can use

	 buffer	b = BUFFER_INIT(op,fd,y,ylen);

       to initialize b statically if op, fd, y,	and ylen are compile-time con-
       stants.

       You can call buffer_init	again at any time. Note	that this discards the
       currently buffered string.

EXAMPLE
	 #include <libowfat/buffer.h>
	 #include <libowfat/open.h>

	 char buf[4096];
	 int fd=open_read("/etc/services");
	 buffer	input;

	 if (fd>=0) {
	   char	x;
	   buffer_init(&input,read,fd,buf,sizeof buf);
	   while (buffer_get(&input,&x,1)==1) {
	     buffer_put(buffer_1,&x,1);
	     if	(x=='\n') break;
	   }
	   buffer_flush(buffer_1);
	 }

SEE ALSO
       buffer_flush(3),	buffer(3)

								buffer_init(3)

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