buf_io.c File Reference

#include <rz_util.h>
#include <rz_io.h>

Go to the source code of this file.

Classes
struct	buf_io_priv

Typedefs
typedef RzIOBind *	BufIOUser
typedef struct buf_io_priv	BufIOPriv

Functions
static bool	buf_io_init (RzBuffer *b, const void *user)
static bool	buf_io_fini (RzBuffer *b)
static st64	buf_io_seek (RzBuffer *b, st64 addr, int whence)
static st64	buf_io_read (RzBuffer *b, ut8 *buf, ut64 len)
static st64	buf_io_write (RzBuffer *b, const ut8 *buf, ut64 len)

Variables
static const RzBufferMethods	buffer_io_methods

Typedef Documentation

BufIOPriv

typedef struct buf_io_priv BufIOPriv

BufIOUser

typedef RzIOBind* BufIOUser

Definition at line 7 of file buf_io.c.

Function Documentation

buf_io_fini()

static bool buf_io_fini ( RzBuffer *  b )

static

Definition at line 27 of file buf_io.c.

                                     {
    free(b->priv);
    return true;
}

References b, and free().

buf_io_init()

static bool buf_io_init ( RzBuffer *  b, const void *  user  )

static

Definition at line 14 of file buf_io.c.

                                                       {
    BufIOUser u = (void *)user;
    rz_return_val_if_fail(u, false);
    BufIOPriv *priv = RZ_NEW(BufIOPriv);
    if (!priv) {
        return false;
    }
    priv->iob = u;
    priv->offset = 0;
    b->priv = priv;
    return true;
}

References b, buf_io_priv::iob, buf_io_priv::offset, RZ_NEW, and rz_return_val_if_fail.

buf_io_read()

static st64 buf_io_read ( RzBuffer *  b, ut8 *  buf, ut64  len  )

static

Definition at line 40 of file buf_io.c.

                                                         {
    BufIOPriv *priv = b->priv;
    len = RZ_MIN(INT_MAX, len); // remove if read_at takes ut64 at some point
    bool r = priv->iob->read_at(priv->iob->io, priv->offset, buf, len);
    return r ? len : -1;
}

References b, INT_MAX, rz_io_bind_t::io, buf_io_priv::iob, len, buf_io_priv::offset, r, rz_io_bind_t::read_at, and RZ_MIN.

buf_io_seek()

static st64 buf_io_seek ( RzBuffer *  b, st64  addr, int  whence  )

static

Definition at line 32 of file buf_io.c.

                                                            {
    BufIOPriv *priv = b->priv;
    priv->offset = rz_seek_offset(priv->offset, 0, addr, whence);
    // can't express the seek right if the highest bit is set,
    // but at least tell the caller there was no error:
    return RZ_MIN(priv->offset, ST64_MAX);
}

References addr, b, buf_io_priv::offset, RZ_MIN, rz_seek_offset(), and ST64_MAX.

buf_io_write()

static st64 buf_io_write ( RzBuffer *  b, const ut8 *  buf, ut64  len  )

static

Definition at line 47 of file buf_io.c.

                                                                {
    BufIOPriv *priv = b->priv;
    len = RZ_MIN(INT_MAX, len); // remove if write_at takes ut64 at some point
    bool r = priv->iob->write_at(priv->iob->io, priv->offset, buf, len);
    return r ? len : -1;
}

References b, INT_MAX, rz_io_bind_t::io, buf_io_priv::iob, len, buf_io_priv::offset, r, RZ_MIN, and rz_io_bind_t::write_at.

Variable Documentation

buffer_io_methods

const RzBufferMethods buffer_io_methods

static

Initial value:

= {
    .init = buf_io_init,
    .fini = buf_io_fini,
    .read = buf_io_read,
    .write = buf_io_write,
    .seek = buf_io_seek,
}

Definition at line 54 of file buf_io.c.

Referenced by new_buffer().