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buffer_get_token_pred(3)   Library Functions Manual   buffer_get_token_pred(3)

NAME
       buffer_get_token_pred - read token from buffer

SYNTAX
       #include	<libowfat/buffer.h>

       ssize_t buffer_get_token_pred(buffer* b,char* x,size_t len,
			int (*predicate)(const char* s,size_t len));

DESCRIPTION
       buffer_get_token_pred  copies  data from	b to x[0], x[1], ..., x[len-1]
       until len bytes have been read or predicate called on  the  destination
       string returns nonzero.

       predicate  can  also  return 0 (indicating further input	is required to
       complete	the token) or -1 (abort	and return -1; use this	 if  predicate
       wants  to enfore	a maximum message size or does timeout handling	or de-
       tects a malformed message).

       buffer_get_token_pred returns the number	of bytes copied	or -1 on error
       (setting	errno appropriately).

SEE ALSO
       buffer_init(3),	 buffer_feed(3),    buffer_peek(3),    buffer_seek(3),
       buffer(3)

						      buffer_get_token_pred(3)

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