int
str_fileread(struct mystr* p_str, const char* p_filename, unsigned int maxsize)
{
int fd;
int retval = 0;
filesize_t size;
char* p_sec_buf = 0;
struct vsf_sysutil_statbuf* p_stat = 0;
/* In case we fail, make sure we return an empty string */
str_empty(p_str);
fd = vsf_sysutil_open_file(p_filename, kVSFSysUtilOpenReadOnly);
if (vsf_sysutil_retval_is_error(fd))
{
return fd;
}
vsf_sysutil_fstat(fd, &p_stat);
if (vsf_sysutil_statbuf_is_regfile(p_stat))
{
size = vsf_sysutil_statbuf_get_size(p_stat);
if (size > maxsize)
{
size = maxsize;
}
vsf_secbuf_alloc(&p_sec_buf, (unsigned int) size);
retval = vsf_sysutil_read_loop(fd, p_sec_buf, (unsigned int) size);
if (vsf_sysutil_retval_is_error(retval))
{
goto free_out;
}
else if ((unsigned int) retval != size)
{
die("read size mismatch");
}
str_alloc_memchunk(p_str, p_sec_buf, size);
}
free_out:
vsf_sysutil_free(p_stat);
vsf_secbuf_free(&p_sec_buf);
vsf_sysutil_close(fd);
return retval;
}
static int
plain_read_adapter(struct vsf_session* p_sess, char* p_buf, unsigned int len)
{
(void) p_sess;
return vsf_sysutil_read_loop(VSFTP_COMMAND_FD, p_buf, len);
}
void
str_netfd_alloc(struct mystr* p_str, int fd, char term, char* p_readbuf,
unsigned int maxlen)
{
int retval;
unsigned int bytes_read;
unsigned int i;
char* p_readpos = p_readbuf;
unsigned int left = maxlen;
while (1)
{
if (p_readpos + left != p_readbuf + maxlen)
{
bug("poor buffer accounting in str_netfd_alloc");
}
/* Did we hit the max? */
if (left == 0)
{
str_empty(p_str);
return;
}
retval = vsf_sysutil_recv_peek(fd, p_readpos, left);
if (vsf_sysutil_retval_is_error(retval))
{
die("vsf_sysutil_recv_peek");
}
else if (retval == 0)
{
die("vsf_sysutil_recv_peek: no data");
}
bytes_read = (unsigned int) retval;
/* Search for the terminator */
for (i=0; i < bytes_read; i++)
{
if (p_readpos[i] == term)
{
/* Got it! */
retval = vsf_sysutil_read_loop(fd, p_readpos, i + 1);
if (vsf_sysutil_retval_is_error(retval) ||
(unsigned int) retval != i + 1)
{
die("vsf_sysutil_read_loop");
}
if (p_readpos[i] != term)
{
die("missing terminator in str_netfd_alloc");
}
str_alloc_alt_term(p_str, p_readbuf, term);
return;
}
}
/* Not found in this read chunk, so consume the data and re-loop */
if (bytes_read > left)
{
bug("bytes_read > left in str_netfd_alloc");
}
left -= bytes_read;
retval = vsf_sysutil_read_loop(fd, p_readpos, bytes_read);
if (vsf_sysutil_retval_is_error(retval) ||
(unsigned int) retval != bytes_read)
{
die("vsf_sysutil_read_loop");
}
p_readpos += bytes_read;
} /* END: while(1) */
}