buf_bytes.c File Reference

#include <rz_util.h>

Go to the source code of this file.

Classes
struct	buf_bytes_user
struct	buf_bytes_priv

Functions
static struct buf_bytes_priv *	get_priv_bytes (RzBuffer *b)
static bool	buf_bytes_init (RzBuffer *b, const void *user)
static bool	buf_bytes_fini (RzBuffer *b)
static bool	buf_bytes_resize (RzBuffer *b, ut64 newsize)
static st64	buf_bytes_read (RzBuffer *b, ut8 *buf, ut64 len)
static st64	buf_bytes_write (RzBuffer *b, const ut8 *buf, ut64 len)
static ut64	buf_bytes_get_size (RzBuffer *b)
static st64	buf_bytes_seek (RzBuffer *b, st64 addr, int whence)
static ut8 *	buf_bytes_get_whole_buf (RzBuffer *b, ut64 *sz)

Variables
static const RzBufferMethods	buffer_bytes_methods

Function Documentation

buf_bytes_fini()

static bool buf_bytes_fini ( RzBuffer *  b )

static

Definition at line 53 of file buf_bytes.c.

                                        {
    struct buf_bytes_priv *priv = get_priv_bytes(b);
    if (priv->is_bufowner) {
        free(priv->buf);
    }
    RZ_FREE(b->priv);
    return true;
}

References b, buf_bytes_priv::buf, free(), get_priv_bytes(), buf_bytes_priv::is_bufowner, and RZ_FREE.

buf_bytes_get_size()

static ut64 buf_bytes_get_size ( RzBuffer *  b )

static

Definition at line 97 of file buf_bytes.c.

                                            {
    struct buf_bytes_priv *priv = get_priv_bytes(b);
    return priv->length;
}

References b, get_priv_bytes(), and buf_bytes_priv::length.

buf_bytes_get_whole_buf()

static ut8* buf_bytes_get_whole_buf ( RzBuffer *  b, ut64 *  sz  )

static

Definition at line 110 of file buf_bytes.c.

                                                           {
    struct buf_bytes_priv *priv = get_priv_bytes(b);
    if (sz) {
        *sz = priv->length;
    }
    return priv->buf;
}

References b, buf_bytes_priv::buf, get_priv_bytes(), and buf_bytes_priv::length.

buf_bytes_init()

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

static

Definition at line 26 of file buf_bytes.c.

                                                          {
    const struct buf_bytes_user *u = (const struct buf_bytes_user *)user;
    struct buf_bytes_priv *priv = RZ_NEW0(struct buf_bytes_priv);
    if (!priv) {
        return false;
    }
 
    priv->offset = 0;
    priv->length = u->length;
    if (u->data_steal) {
        priv->buf = (ut8 *)u->data_steal;
        priv->is_bufowner = u->steal;
    } else {
        priv->buf = malloc(priv->length);
        if (!priv->buf) {
            free(priv);
            return false;
        }
        if (priv->length) {
            memmove(priv->buf, u->data, priv->length);
        }
        priv->is_bufowner = true;
    }
    b->priv = priv;
    return true;
}

References b, buf_bytes_priv::buf, buf_bytes_user::data, buf_bytes_user::data_steal, free(), buf_bytes_priv::is_bufowner, buf_bytes_user::length, buf_bytes_priv::length, malloc(), buf_bytes_priv::offset, RZ_NEW0, and buf_bytes_user::steal.

buf_bytes_read()

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

static

Definition at line 76 of file buf_bytes.c.

                                                            {
    struct buf_bytes_priv *priv = get_priv_bytes(b);
    ut64 real_len = priv->length < priv->offset ? 0 : RZ_MIN(priv->length - priv->offset, len);
    memmove(buf, priv->buf + priv->offset, real_len);
    priv->offset += real_len;
    return real_len;
}

References b, buf_bytes_priv::buf, get_priv_bytes(), len, buf_bytes_priv::length, buf_bytes_priv::offset, RZ_MIN, and ut64().

buf_bytes_resize()

static bool buf_bytes_resize ( RzBuffer *  b, ut64  newsize  )

static

Definition at line 62 of file buf_bytes.c.

                                                        {
    struct buf_bytes_priv *priv = get_priv_bytes(b);
    if (newsize > priv->length) {
        ut8 *t = realloc(priv->buf, newsize);
        if (!t) {
            return false;
        }
        priv->buf = t;
        memset(priv->buf + priv->length, b->Oxff_priv, newsize - priv->length);
    }
    priv->length = newsize;
    return true;
}

References b, buf_bytes_priv::buf, get_priv_bytes(), buf_bytes_priv::length, memset(), and realloc().

buf_bytes_seek()

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

static

Definition at line 102 of file buf_bytes.c.

                                                               {
    struct buf_bytes_priv *priv = get_priv_bytes(b);
    if (addr < 0 && (-addr) > (st64)priv->offset) {
        return -1;
    }
    return priv->offset = rz_seek_offset(priv->offset, priv->length, addr, whence);
}

References addr, b, get_priv_bytes(), buf_bytes_priv::length, buf_bytes_priv::offset, rz_seek_offset(), and st64.

buf_bytes_write()

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

static

Definition at line 84 of file buf_bytes.c.

                                                                   {
    struct buf_bytes_priv *priv = get_priv_bytes(b);
    if (priv->offset > priv->length || priv->offset + len >= priv->length) {
        bool r = rz_buf_resize(b, priv->offset + len);
        if (!r) {
            return -1;
        }
    }
    memmove(priv->buf + priv->offset, buf, len);
    priv->offset += len;
    return len;
}

References b, buf_bytes_priv::buf, get_priv_bytes(), len, buf_bytes_priv::length, buf_bytes_priv::offset, r, and rz_buf_resize().

get_priv_bytes()

static struct buf_bytes_priv* get_priv_bytes ( RzBuffer *  b )

inlinestatic

Definition at line 20 of file buf_bytes.c.

                                                                 {
    struct buf_bytes_priv *priv = (struct buf_bytes_priv *)b->priv;
    rz_warn_if_fail(priv);
    return priv;
}

References b, and rz_warn_if_fail.

Referenced by buf_bytes_fini(), buf_bytes_get_size(), buf_bytes_get_whole_buf(), buf_bytes_read(), buf_bytes_resize(), buf_bytes_seek(), and buf_bytes_write().

Variable Documentation

buffer_bytes_methods

const RzBufferMethods buffer_bytes_methods

static

Initial value:

= {
    .init = buf_bytes_init,
    .fini = buf_bytes_fini,
    .read = buf_bytes_read,
    .write = buf_bytes_write,
    .get_size = buf_bytes_get_size,
    .resize = buf_bytes_resize,
    .seek = buf_bytes_seek,
    .get_whole_buf = buf_bytes_get_whole_buf
}

Definition at line 118 of file buf_bytes.c.

Referenced by new_buffer().