/* The configuration file consists of lines of the form:
*
* user type bridge count
* or
* @group type bridge count
*
* Return the count entry for the calling user if there is one. Else
* return -1.
*/
static int get_alloted(char *me, char *intype, char *link, struct alloted_s **alloted)
{
FILE *fin = fopen(LXC_USERNIC_CONF, "r");
char *line = NULL;
char name[100], type[100], br[100];
size_t len = 0;
int n, ret, count = 0;
char **groups;
if (!fin) {
fprintf(stderr, "Failed to open %s: %s\n", LXC_USERNIC_CONF,
strerror(errno));
return -1;
}
groups = get_groupnames();
while ((getline(&line, &len, fin)) != -1) {
ret = sscanf(line, "%99[^ \t] %99[^ \t] %99[^ \t] %d", name, type, br, &n);
if (ret != 4)
continue;
if (strlen(name) == 0)
continue;
if (strcmp(name, me) != 0)
{
if (name[0] != '@')
continue;
if (!name_is_in_groupnames(name+1, groups))
continue;
}
if (strcmp(type, intype) != 0)
continue;
if (strcmp(link, br) != 0)
continue;
/* found the user or group with the appropriate settings, therefore finish the search.
* what to do if there are more than one applicable lines? not specified in the docs.
* since getline is implemented with realloc, we don't need to free line until exiting func.
*
* if append_alloted returns NULL, e.g. due to a malloc error, we set count to 0 and break the loop,
* allowing cleanup and then exiting from main()
*/
if (append_alloted(alloted, name, n) == NULL) {
count = 0;
break;
}
count += n;
}
free_groupnames(groups);
fclose(fin);
free(line);
// now return the total number of nics that this user can create
return count;
}
/* The configuration file consists of lines of the form:
*
* user type bridge count
* or
* @group type bridge count
*
* Return the count entry for the calling user if there is one. Else
* return -1.
*/
static int get_alloted(char *me, char *intype, char *link,
struct alloted_s **alloted)
{
__do_free char *line = NULL;
__do_fclose FILE *fin = NULL;
int n, ret;
char name[100], type[100], br[100];
char **groups;
int count = 0;
size_t len = 0;
fin = fopen(LXC_USERNIC_CONF, "r");
if (!fin) {
CMD_SYSERROR("Failed to open \"%s\"\n", LXC_USERNIC_CONF);
return -1;
}
groups = get_groupnames();
while ((getline(&line, &len, fin)) != -1) {
ret = sscanf(line, "%99[^ \t] %99[^ \t] %99[^ \t] %d", name,
type, br, &n);
if (ret != 4)
continue;
if (strlen(name) == 0)
continue;
if (strcmp(name, me)) {
if (name[0] != '@')
continue;
if (!name_is_in_groupnames(name + 1, groups))
continue;
}
if (strcmp(type, intype))
continue;
if (strcmp(link, br))
continue;
/* Found the user or group with the appropriate settings,
* therefore finish the search. What to do if there are more
* than one applicable lines? not specified in the docs. Since
* getline is implemented with realloc, we don't need to free
* line until exiting func.
*
* If append_alloted returns NULL, e.g. due to a malloc error,
* we set count to 0 and break the loop, allowing cleanup and
* then exiting from main().
*/
if (!append_alloted(alloted, name, n)) {
count = 0;
break;
}
count += n;
}
free_groupnames(groups);
/* Now return the total number of nics that this user can create. */
return count;
}
