shadow-utils/shadow-4.0.18.1-sysAccount.patch

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--- shadow-4.0.18.1/src/useradd.c.sysAccount 2007-03-12 10:49:14.000000000 +0100
+++ shadow-4.0.18.1/src/useradd.c 2007-03-12 12:15:57.000000000 +0100
@@ -854,6 +854,7 @@
{
const struct passwd *pwd;
uid_t uid_min, uid_max;
+ char * index;
if (!rflg) {
uid_min = getdef_unum ("UID_MIN", 500);
@@ -862,6 +863,8 @@
else {
uid_min = 1;
uid_max = getdef_unum ("UID_MIN", 500) - 1;
+ index = alloca (sizeof (char) * uid_max +1);
+ memset (index, 0, sizeof (char) * uid_max + 1);
}
/*
@@ -901,11 +904,24 @@
#endif
exit (E_UID_IN_USE);
}
- if (!uflg && pwd->pw_uid >= user_id) {
+ if (!uflg && !rflg && pwd->pw_uid >= user_id) {
if (pwd->pw_uid > uid_max)
continue;
user_id = pwd->pw_uid + 1;
}
+ /* create index of occupied system accounts UIDs */
+ if (!uflg && rflg && (pwd->pw_uid <= uid_max))
+ index[pwd->pw_uid] = 1;
+
+ }
+
+ /* find free system account */
+ if(!uflg && rflg) {
+ for( user_id = uid_max; (user_id >= uid_min) && index[user_id]; user_id--);
+ if ( user_id < uid_min ) {
+ fprintf (stderr, _("%s: can't get unique UID\n"), Prog);
+ fail_exit (E_UID_IN_USE);
+ }
}
/*
@@ -946,6 +962,7 @@
{
const struct group *grp;
gid_t gid_min, gid_max;
+ char * index;
if (!rflg) {
gid_min = getdef_unum ("GID_MIN", 500);
@@ -953,7 +970,9 @@
} else {
gid_min = 1;
gid_max = getdef_unum ("GID_MIN", 500) - 1;
- }
+ index = alloca (sizeof (char) * gid_max +1);
+ memset (index, 0, sizeof (char) * gid_max + 1);
+ }
/*
* Start with some GID value if the user didn't provide us with
@@ -978,12 +997,16 @@
user_gid = grp->gr_gid;
return;
}
- if (grp->gr_gid >= user_gid) {
+ if (!rflg && grp->gr_gid >= user_gid) {
if (grp->gr_gid > gid_max)
continue;
user_gid = grp->gr_gid + 1;
}
+ /* create index of occupied system accounts GIDs */
+ if (rflg && (grp->gr_gid <= gid_max))
+ index[grp->gr_gid] = 1;
}
+
#ifndef NO_GETGRENT /* glibc does have this, so ... */
/* A quick test gets here: if the UID is available
* as a GID, go ahead and use it */
@@ -992,6 +1015,18 @@
return;
}
#endif
+
+ /* find free system account */
+ if(rflg) {
+ for( user_gid = gid_max; (user_gid >= gid_min) && index[user_gid]; user_gid--);
+ if ( user_gid < gid_min ) {
+ fprintf (stderr,
+ "%s: can't get unique gid (run out of GIDs)\n",
+ Prog);
+ fail_exit (4);
+ }
+ }
+
if (user_gid == gid_max + 1) {
for (user_gid = gid_min; user_gid < gid_max; user_gid++) {
#ifdef NO_GETGRENT
--- shadow-4.0.18.1/src/groupadd.c.sysAccount 2007-03-12 10:49:14.000000000 +0100
+++ shadow-4.0.18.1/src/groupadd.c 2007-03-12 10:49:14.000000000 +0100
@@ -199,6 +199,7 @@
{
const struct group *grp;
gid_t gid_min, gid_max;
+ char * index;
if (!rflg) {
gid_min = getdef_unum ("GID_MIN", 500);
@@ -206,7 +207,9 @@
} else {
gid_min = 1;
gid_max = getdef_unum ("GID_MIN", 500) - 1;
- }
+ index = alloca (sizeof (char) * gid_max +1);
+ memset (index, 0, sizeof (char) * gid_max + 1);
+ }
/*
* Start with some GID value if the user didn't provide us with
@@ -251,12 +254,25 @@
Prog, (unsigned int) group_id);
fail_exit (E_GID_IN_USE);
}
- if (!gflg && grp->gr_gid >= group_id) {
+ if (!gflg && !rflg && grp->gr_gid >= group_id) {
if (grp->gr_gid > gid_max)
continue;
group_id = grp->gr_gid + 1;
}
+ /* create index of occupied system accounts UIDs */
+ if (!gflg && rflg && (grp->gr_gid <= gid_max))
+ index[grp->gr_gid] = 1;
+ }
+
+ /* find free system account */
+ if(!gflg && rflg) {
+ for( group_id = gid_max; (group_id >= gid_min) && index[group_id]; group_id--);
+ if ( group_id < gid_min ) {
+ fprintf (stderr, _("%s: can't get unique GID\n"), Prog);
+ fail_exit (E_GID_IN_USE);
+ }
}
+
if (!gflg && group_id == gid_max + 1) {
for (group_id = gid_min; group_id < gid_max; group_id++) {
#ifdef NO_GETGRENT