/*
* netname2user_files()
*
* This routine fetches the netid information from the "files" nameservice.
* ie /etc/netid.
*/
static int
netname2user_files(int *err, char *netname, struct netid_userdata *argp)
{
char buf[512]; /* one line from the file */
char *name;
char *value;
char *res;
FILE *fd;
fd = fopen(NETIDFILE, "rF");
if (fd == NULL) {
*err = __NSW_UNAVAIL;
return (0);
}
/*
* for each line in the file parse it appropriately
* file format is :
* netid uid:grp,grp,grp # for users
* netid 0:hostname # for hosts
*/
while (!feof(fd)) {
res = fgets(buf, 512, fd);
if (res == NULL)
break;
/* Skip comments and blank lines */
if ((*res == '#') || (*res == '\n'))
continue;
name = &(buf[0]);
while (isspace(*name))
name++;
if (*name == '\0') /* blank line continue */
continue;
value = name; /* will contain the value eventually */
while (!isspace(*value))
value++;
if (*value == '\0') {
syslog(LOG_WARNING,
"netname2user: badly formatted line in %s.",
NETIDFILE);
continue;
}
*value++ = '\0'; /* nul terminate the name */
if (strcasecmp(name, netname) == 0) {
(void) fclose(fd);
while (isspace(*value))
value++;
*err = parse_netid_str(value, argp);
return (*err == __NSW_SUCCESS);
}
}
(void) fclose(fd);
*err = __NSW_NOTFOUND;
return (0);
}
enum nss_status
_nss_nis_netname2user (char netname[MAXNETNAMELEN + 1], uid_t *uidp,
gid_t *gidp, int *gidlenp, gid_t *gidlist, int *errnop)
{
char *domain;
int yperr;
char *lookup;
int len;
domain = strchr (netname, '@');
if (!domain)
{
*errnop = EINVAL;
return NSS_STATUS_UNAVAIL;
}
/* Point past the '@' character */
++domain;
lookup = NULL;
yperr = yp_match (domain, "netid.byname", netname, strlen (netname),
&lookup, &len);
switch (yperr)
{
case YPERR_SUCCESS:
break; /* the successful case */
case YPERR_DOMAIN:
case YPERR_KEY:
*errnop = ENOENT;
return NSS_STATUS_NOTFOUND;
case YPERR_MAP:
default:
return NSS_STATUS_UNAVAIL;
}
if (lookup)
{
enum nss_status err;
lookup[len] = '\0';
err = parse_netid_str (lookup, uidp, gidp, gidlenp, gidlist);
free (lookup);
return err;
}
else
{
*errnop = ENOENT;
return NSS_STATUS_NOTFOUND;
}
return NSS_STATUS_SUCCESS;
}
/*
* netname2user_nis()
*
* This function reads the netid from the NIS (YP) nameservice.
*/
static int
netname2user_nis(int *err, char *netname, struct netid_userdata *argp)
{
char *domain;
int yperr;
char *lookup;
int len;
domain = strchr(netname, '@');
if (!domain) {
*err = __NSW_UNAVAIL;
return (0);
}
/* Point past the '@' character */
domain++;
lookup = NULL;
yperr = yp_match(domain, (char *)NETID, netname, strlen(netname),
&lookup, &len);
switch (yperr) {
case 0:
break; /* the successful case */
default :
/*
* XXX not sure about yp_match semantics.
* should err be set to NOTFOUND here?
*/
*err = __NSW_UNAVAIL;
return (0);
}
if (lookup) {
lookup[len] = '\0';
*err = parse_netid_str(lookup, argp);
free(lookup);
return (*err == __NSW_SUCCESS);
}
*err = __NSW_NOTFOUND;
return (0);
}
