blast.h File Reference

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Typedefs
typedef unsigned(*	blast_in) (void *how, unsigned char **buf)
typedef int(*	blast_out) (void *how, unsigned char *buf, unsigned len)

Functions
int	blast (blast_in infun, void *inhow, blast_out outfun, void *outhow, unsigned *left, unsigned char **in)

Typedef Documentation

blast_in

typedef unsigned(* blast_in) (void *how, unsigned char **buf)

Definition at line 38 of file blast.h.

blast_out

typedef int(* blast_out) (void *how, unsigned char *buf, unsigned len)

Definition at line 39 of file blast.h.

Function Documentation

blast()

int blast	(	blast_in	infun,
		void *	inhow,
		blast_out	outfun,
		void *	outhow,
		unsigned *	left,
		unsigned char **	in
	)

Definition at line 383 of file blast.c.

{
    struct state s;             /* input/output state */
    int err;                    /* return value */
 
    /* initialize input state */
    s.infun = infun;
    s.inhow = inhow;
    if (left != NULL && *left) {
        s.left = *left;
        s.in = *in;
    }
    else
        s.left = 0;
    s.bitbuf = 0;
    s.bitcnt = 0;
 
    /* initialize output state */
    s.outfun = outfun;
    s.outhow = outhow;
    s.next = 0;
    s.first = 1;
 
    /* return if bits() or decode() tries to read past available input */
    if (setjmp(s.env) != 0)             /* if came back here via longjmp(), */
        err = 2;                        /*  then skip decomp(), return error */
    else
        err = decomp(&s);               /* decompress */
 
    /* return unused input */
    if (left != NULL)
        *left = s.left;
    if (in != NULL)
        *in = s.left ? s.in : NULL;
 
    /* write any leftover output and update the error code if needed */
    if (err != 1 && s.next && s.outfun(s.outhow, s.out, s.next) && err == 0)
        err = 1;
    return err;
}

References decomp(), err, in, state::infun, state::inhow, state::left, NULL, state::outfun, state::outhow, and s.