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adduser/addgroup: make system id range configurable.

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By Tito (farmatito AT tiscali.it).

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2009-05-14 00:23:34 +02:00
parent 810b7161dc
commit 1b0a93edb9
3 changed files with 32 additions and 8 deletions
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16
loginutils/Config.in
View File

@ -152,6 +152,22 @@ config FEATURE_ADDUSER_LONG_OPTIONS
help
Support long options for the adduser applet.
config FIRST_SYSTEM_ID
int "First valid system uid or gid for adduser and addgroup"
depends on ADDUSER || ADDGROUP
range 0 64900
default 100
help
First valid system uid or gid for adduser and addgroup
config LAST_SYSTEM_ID
int "Last valid system uid or gid for adduser and addgroup"
depends on ADDUSER || ADDGROUP
range 0 64900
default 999
help
Last valid system uid or gid for adduser and addgroup
config DELUSER
bool "deluser"
default n

12
loginutils/addgroup.c
View File

@ -11,6 +11,10 @@
*/
#include "libbb.h"
#if CONFIG_LAST_SYSTEM_ID < CONFIG_FIRST_SYSTEM_ID
#error Bad LAST_SYSTEM_ID or FIRST_SYSTEM_ID in .config
#endif
#define OPT_GID (1 << 0)
#define OPT_SYSTEM_ACCOUNT (1 << 1)
@ -30,11 +34,11 @@ static void xgroup_study(struct group *g)
/* gid values is set to [0, INT_MAX] */
if (!(option_mask32 & OPT_GID)) {
if (option_mask32 & OPT_SYSTEM_ACCOUNT) {
g->gr_gid = 100; /* FIRST_SYSTEM_GID */
max = 999; /* LAST_SYSTEM_GID */
g->gr_gid = CONFIG_FIRST_SYSTEM_ID;
max = CONFIG_LAST_SYSTEM_ID;
} else {
g->gr_gid = 1000; /* FIRST_GID */
max = 64999; /* LAST_GID */
g->gr_gid = CONFIG_LAST_SYSTEM_ID + 1;
max = 64999;
}
}
/* Check if the desired gid is free

12
loginutils/adduser.c
View File

@ -9,6 +9,10 @@
*/
#include "libbb.h"
#if CONFIG_LAST_SYSTEM_ID < CONFIG_FIRST_SYSTEM_ID
#error Bad LAST_SYSTEM_ID or FIRST_SYSTEM_ID in .config
#endif
/* #define OPT_HOME (1 << 0) */ /* unused */
/* #define OPT_GECOS (1 << 1) */ /* unused */
#define OPT_SHELL (1 << 2)
@ -32,11 +36,11 @@ static void passwd_study(struct passwd *p)
if (!(option_mask32 & OPT_UID)) {
if (option_mask32 & OPT_SYSTEM_ACCOUNT) {
p->pw_uid = 100; /* FIRST_SYSTEM_UID */
max = 999; /* LAST_SYSTEM_UID */
p->pw_uid = CONFIG_FIRST_SYSTEM_ID;
max = CONFIG_LAST_SYSTEM_ID;
} else {
p->pw_uid = 1000; /* FIRST_UID */
max = 64999; /* LAST_UID */
p->pw_uid = CONFIG_LAST_SYSTEM_ID + 1;
max = 64999;
}
}
/* check for a free uid (and maybe gid) */