static int lcc_send (lcc_connection_t *c, const char *command) /* {{{ */
{
int status;
LCC_DEBUG ("send: --> %s\n", command);
status = fprintf (c->fh, "%s\r\n", command);
if (status < 0)
{
lcc_set_errno (c, errno);
return (-1);
}
return (0);
} /* }}} int lcc_send */
static int lcc_receive (lcc_connection_t *c, /* {{{ */
lcc_response_t *ret_res)
{
lcc_response_t res;
char *ptr;
char buffer[4096];
size_t i;
memset (&res, 0, sizeof (res));
/* Read the first line, containing the status and a message */
ptr = fgets (buffer, sizeof (buffer), c->fh);
if (ptr == NULL)
{
lcc_set_errno (c, errno);
return (-1);
}
lcc_chomp (buffer);
LCC_DEBUG ("receive: <-- %s\n", buffer);
/* Convert the leading status to an integer and make `ptr' to point to the
* beginning of the message. */
ptr = NULL;
errno = 0;
res.status = (int) strtol (buffer, &ptr, 0);
if ((errno != 0) || (ptr == &buffer[0]))
{
lcc_set_errno (c, errno);
return (-1);
}
/* Skip white spaces after the status number */
while ((*ptr == ' ') || (*ptr == '\t'))
ptr++;
/* Now copy the message. */
strncpy (res.message, ptr, sizeof (res.message));
res.message[sizeof (res.message) - 1] = 0;
/* Error or no lines follow: We're done. */
if (res.status <= 0)
{
memcpy (ret_res, &res, sizeof (res));
return (0);
}
/* Allocate space for the char-pointers */
res.lines_num = (size_t) res.status;
res.status = 0;
res.lines = (char **) malloc (res.lines_num * sizeof (char *));
if (res.lines == NULL)
{
lcc_set_errno (c, ENOMEM);
return (-1);
}
/* Now receive all the lines */
for (i = 0; i < res.lines_num; i++)
{
ptr = fgets (buffer, sizeof (buffer), c->fh);
if (ptr == NULL)
{
lcc_set_errno (c, errno);
break;
}
lcc_chomp (buffer);
LCC_DEBUG ("receive: <-- %s\n", buffer);
res.lines[i] = strdup (buffer);
if (res.lines[i] == NULL)
{
lcc_set_errno (c, ENOMEM);
break;
}
}
/* Check if the for-loop exited with an error. */
if (i < res.lines_num)
{
while (i > 0)
{
i--;
free (res.lines[i]);
}
free (res.lines);
return (-1);
}
memcpy (ret_res, &res, sizeof (res));
return (0);
} /* }}} int lcc_receive */