Add getgrouplist() support to os_calls

On enterprise systems, using getgrouplist() (if available) is more efficient than iterating over the members of the group, and is also more likely to work
2023-10-02 11:04:47 +01:00
parent 84a0befd30
commit cf677da22c
2 changed files with 79 additions and 17 deletions
@@ -323,6 +323,15 @@ int      g_getuser_info_by_name(const char *username, int *uid, int *gid,
 int      g_getuser_info_by_uid(int uid, char **username, int *gid,
                               char **shell, char **dir, char **gecos);
 int      g_getgroup_info(const char *groupname, int *gid);
+/**
+ * Checks whether a user is in the specified group
+ * @param username Name of user
+ * @param gid GID of group
+ * @param[out] ok Whether user is in group
+ * @return Non-zero if a system error occurred. In this instance OK is not set
+ *
+ * Primary group of username is also checked
+ */
 int      g_check_user_in_group(const char *username, int gid, int *ok);
 int      g_time1(void);
 int      g_time2(void);