MODRET authfile_setgrent(cmd_rec *cmd) {
if (af_setgrent() == 0) {
return PR_DECLINED(cmd);
}
return PR_DECLINED(cmd);
}
MODRET authfile_name2gid(cmd_rec *cmd) {
struct group *grp = NULL;
if (af_setgrent() < 0)
return PR_DECLINED(cmd);
grp = af_getgrnam(cmd->argv[0]);
return grp ? mod_create_data(cmd, (void *) &grp->gr_gid) : PR_DECLINED(cmd);
}
MODRET authfile_gid2name(cmd_rec *cmd) {
struct group *grp = NULL;
if (af_setgrent() < 0)
return PR_DECLINED(cmd);
grp = af_getgrgid(*((gid_t *) cmd->argv[0]));
return grp ? mod_create_data(cmd, grp->gr_name) : PR_DECLINED(cmd);
}
MODRET authfile_getgrgid(cmd_rec *cmd) {
struct group *grp = NULL;
gid_t gid = *((gid_t *) cmd->argv[0]);
if (af_setgrent() < 0)
return PR_DECLINED(cmd);
grp = af_getgrgid(gid);
return grp ? mod_create_data(cmd, grp) : PR_DECLINED(cmd);
}
static struct group *af_getgrgid(gid_t gid) {
struct group *grp = NULL;
if (af_setgrent() < 0)
return NULL;
while ((grp = af_getgrent()) != NULL) {
if (grp->gr_gid == gid) {
/* Found the requested GID */
break;
}
}
return grp;
}
static struct group *af_getgrnam(const char *name) {
struct group *grp = NULL;
if (af_setgrent() < 0)
return NULL;
while ((grp = af_getgrent()) != NULL) {
if (strcmp(name, grp->gr_name) == 0) {
/* Found the requested group */
break;
}
}
return grp;
}
MODRET authfile_getgrnam(cmd_rec *cmd) {
struct group *grp = NULL;
const char *name = cmd->argv[0];
if (af_setgrent() < 0)
return PR_DECLINED(cmd);
while ((grp = af_getgrent()) != NULL) {
if (strcmp(name, grp->gr_name) == 0) {
/* Found the name requested */
break;
}
}
return grp ? mod_create_data(cmd, grp) : PR_DECLINED(cmd);
}
static struct group *af_getgrgid(pool *p, gid_t gid) {
struct group *grp = NULL;
if (af_setgrent(p) < 0) {
return NULL;
}
while ((grp = af_getgrent(p)) != NULL) {
pr_signals_handle();
if (grp->gr_gid == gid) {
/* Found the requested GID */
break;
}
}
return grp;
}
static struct group *af_getgrnam(pool *p, const char *name) {
struct group *grp = NULL;
if (af_setgrent(p) < 0) {
return NULL;
}
while ((grp = af_getgrent(p)) != NULL) {
pr_signals_handle();
if (strcmp(name, grp->gr_name) == 0) {
/* Found the requested group */
break;
}
}
return grp;
}
MODRET authfile_getgroups(cmd_rec *cmd) {
struct passwd *pwd = NULL;
struct group *grp = NULL;
array_header *gids = NULL, *groups = NULL;
char *name = cmd->argv[0];
if (name == NULL) {
return PR_DECLINED(cmd);
}
if (af_setpwent() < 0) {
return PR_DECLINED(cmd);
}
if (af_setgrent() < 0) {
return PR_DECLINED(cmd);
}
/* Check for NULLs */
if (cmd->argv[1])
gids = (array_header *) cmd->argv[1];
if (cmd->argv[2])
groups = (array_header *) cmd->argv[2];
/* Retrieve the necessary info. */
pwd = af_getpwnam(name);
if (pwd == NULL) {
return PR_DECLINED(cmd);
}
/* Populate the first group ID and name. */
if (gids) {
*((gid_t *) push_array(gids)) = pwd->pw_gid;
}
if (groups &&
(grp = af_getgrgid(pwd->pw_gid)) != NULL) {
*((char **) push_array(groups)) = pstrdup(session.pool, grp->gr_name);
}
af_setgrent();
/* This is where things get slow, expensive, and ugly. Loop through
* everything, checking to make sure we haven't already added it.
*/
while ((grp = af_getgrent()) != NULL &&
grp->gr_mem) {
char **gr_mems = NULL;
pr_signals_handle();
/* Loop through each member name listed */
for (gr_mems = grp->gr_mem; *gr_mems; gr_mems++) {
/* If it matches the given username... */
if (strcmp(*gr_mems, pwd->pw_name) == 0) {
/* ...add the GID and name */
if (gids)
*((gid_t *) push_array(gids)) = grp->gr_gid;
if (groups)
*((char **) push_array(groups)) = pstrdup(session.pool, grp->gr_name);
}
}
}
if (gids && gids->nelts > 0) {
return mod_create_data(cmd, (void *) &gids->nelts);
} else if (groups && groups->nelts > 0) {
return mod_create_data(cmd, (void *) &groups->nelts);
}
return PR_DECLINED(cmd);
}