static char *find_line(char *p, char *e, char *u, char *t, char *l)
{
char *p1, *p2, *ret;
while (p<e && (p1 = get_eol(p, e)) < e) {
ret = p;
if (*p == '#')
goto next;
while (p<e && isblank(*p)) p++;
p2 = get_eow(p, e);
if (!p2 || p2-p != strlen(u) || strncmp(p, u, strlen(u)) != 0)
goto next;
p = p2+1;
while (p<e && isblank(*p)) p++;
p2 = get_eow(p, e);
if (!p2 || p2-p != strlen(t) || strncmp(p, t, strlen(t)) != 0)
goto next;
p = p2+1;
while (p<e && isblank(*p)) p++;
p2 = get_eow(p, e);
if (!p2 || p2-p != strlen(l) || strncmp(p, l, strlen(l)) != 0)
goto next;
return ret;
next:
p = p1 + 1;
}
return NULL;
}
static char *find_line(char *buf_start, char *buf_end, char *name,
char *net_type, char *net_link, char *net_dev,
bool *owner, bool *found, bool *keep)
{
char *end_of_line, *end_of_word, *line;
while (buf_start < buf_end) {
size_t len;
char netdev_name[IFNAMSIZ];
*found = false;
*keep = true;
*owner = false;
end_of_line = get_eol(buf_start, buf_end);
if (end_of_line >= buf_end)
return NULL;
line = buf_start;
if (*buf_start == '#')
goto next;
while ((buf_start < buf_end) && isblank(*buf_start))
buf_start++;
/* Check whether the line contains the caller's name. */
end_of_word = get_eow(buf_start, buf_end);
/* corrupt db */
if (!end_of_word)
return NULL;
if (strncmp(buf_start, name, strlen(name)))
*found = false;
*owner = true;
buf_start = end_of_word + 1;
while ((buf_start < buf_end) && isblank(*buf_start))
buf_start++;
/* Check whether line is of the right network type. */
end_of_word = get_eow(buf_start, buf_end);
/* corrupt db */
if (!end_of_word)
return NULL;
if (strncmp(buf_start, net_type, strlen(net_type)))
*found = false;
buf_start = end_of_word + 1;
while ((buf_start < buf_end) && isblank(*buf_start))
buf_start++;
/* Check whether line is contains the right link. */
end_of_word = get_eow(buf_start, buf_end);
/* corrupt db */
if (!end_of_word)
return NULL;
if (strncmp(buf_start, net_link, strlen(net_link)))
*found = false;
buf_start = end_of_word + 1;
while ((buf_start < buf_end) && isblank(*buf_start))
buf_start++;
/* Check whether line contains the right network device. */
end_of_word = get_eow(buf_start, buf_end);
/* corrupt db */
if (!end_of_word)
return NULL;
len = end_of_word - buf_start;
/* corrupt db */
if (len >= IFNAMSIZ)
return NULL;
memcpy(netdev_name, buf_start, len);
netdev_name[len] = '\0';
*keep = lxc_nic_exists(netdev_name);
if (net_dev && !strcmp(netdev_name, net_dev))
*found = true;
return line;
next:
buf_start = end_of_line + 1;
}
return NULL;
}
