static int __read(struct r_io_t *io, RIODesc *fd, ut8 *buf, int len) {
ut64 addr = io->off;
if (!fd || !fd->data)
return -1;
memset (buf, '\xff', len); // TODO: only memset the non-readed bytes
return debug_os_read_at (RIOPTRACE_PID (fd), (ut32*)buf, len, addr);
}
static int __close(RIODesc *fd) {
int pid;
if (!fd || !fd->data)
return -1;
pid = RIOPTRACE_PID (fd);
free (fd->data);
fd->data = NULL;
return ptrace (PTRACE_DETACH, pid, 0, 0);
}
static int __close(RIODesc *desc) {
int pid, fd;
if (!desc || !desc->data)
return -1;
pid = RIOPTRACE_PID (desc);
fd = RIOPTRACE_FD (desc);
if (fd!=-1) close (fd);
free (desc->data);
desc->data = NULL;
return ptrace (PTRACE_DETACH, pid, 0, 0);
}
static int __read(RIO *io, RIODesc *desc, ut8 *buf, int len) {
int fd;
ut64 addr = io->off;
if (!desc || !desc->data)
return -1;
memset (buf, '\xff', len); // TODO: only memset the non-readed bytes
fd = RIOPTRACE_FD (desc);
if (fd != -1) {
lseek (fd, addr, SEEK_SET);
return read (fd, buf, len);
}
return debug_os_read_at (RIOPTRACE_PID (desc), (ut32*)buf, len, addr);
}
static int __read(RIO *io, RIODesc *desc, ut8 *buf, int len) {
int ret, fd;
ut64 addr = io->off;
if (!desc || !desc->data)
return -1;
memset (buf, '\xff', len); // TODO: only memset the non-readed bytes
fd = RIOPTRACE_FD (desc);
if (fd != -1) {
ret = lseek (fd, addr, SEEK_SET);
if (ret < 0) return -1;
ret = read (fd, buf, len);
// Workaround for the buggy Debian Wheeze's /proc/pid/mem
if (ret != -1) return ret;
}
return debug_os_read_at (RIOPTRACE_PID (desc), (ut32*)buf, len, addr);
}
static int __write(RIO *io, RIODesc *fd, const ut8 *buf, int len) {
if (!fd || !fd->data)
return -1;
return ptrace_write_at (RIOPTRACE_PID (fd), buf, len, io->off);
}