/* append a new user to the passwd file */
static void new_group(char *group, gid_t gid)
{
FILE *file;
struct group gr;
/* make sure gid and group haven't already been allocated */
gr.gr_gid = gid;
gr.gr_name = group;
xgroup_study(&gr);
/* add entry to group */
file = xfopen(bb_path_group_file, "a");
/* group:passwd:gid:userlist */
fprintf(file, "%s:x:%u:\n", group, (unsigned)gr.gr_gid);
if (ENABLE_FEATURE_CLEAN_UP)
fclose(file);
#if ENABLE_FEATURE_SHADOWPASSWDS
file = fopen_or_warn(bb_path_gshadow_file, "a");
if (file) {
fprintf(file, "%s:!::\n", group);
if (ENABLE_FEATURE_CLEAN_UP)
fclose(file);
}
#endif
}
/* append a new user to the passwd file */
static void new_group(char *group, gid_t gid)
{
struct group gr;
char *p;
/* make sure gid and group haven't already been allocated */
gr.gr_gid = gid;
gr.gr_name = group;
xgroup_study(&gr);
/* add entry to group */
p = xasprintf("x:%u:", (unsigned) gr.gr_gid);
if (update_passwd(bb_path_group_file, group, p, NULL) < 0)
exit(EXIT_FAILURE);
if (ENABLE_FEATURE_CLEAN_UP)
free(p);
#if ENABLE_FEATURE_SHADOWPASSWDS
/* /etc/gshadow fields:
* 1. Group name.
* 2. Encrypted password.
* If set, non-members of the group can join the group
* by typing the password for that group using the newgrp command.
* If the value is of this field ! then no user is allowed
* to access the group using the newgrp command. A value of !!
* is treated the same as a value of ! only it indicates
* that a password has never been set before. If the value is null,
* only group members can log into the group.
* 3. Group administrators (comma delimited list).
* Group members listed here can add or remove group members
* using the gpasswd command.
* 4. Group members (comma delimited list).
*/
/* Ignore errors: if file is missing we assume admin doesn't want it */
update_passwd(bb_path_gshadow_file, group, "!::", NULL);
#endif
}
