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adduser: copy /etc/skel to mew homes. +100 bytes

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2010-02-06 21:50:59 +01:00
parent 0cd445f4d1
commit cb7edc2661
3 changed files with 25 additions and 6 deletions
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1
coreutils/Kbuild
View File

@ -17,6 +17,7 @@ lib-$(CONFIG_CATV) += catv.o
lib-$(CONFIG_CHGRP) += chgrp.o chown.o
lib-$(CONFIG_CHMOD) += chmod.o
lib-$(CONFIG_CHOWN) += chown.o
lib-$(CONFIG_ADDGROUP) += chown.o # used by adduser
lib-$(CONFIG_CHROOT) += chroot.o
lib-$(CONFIG_CKSUM) += cksum.o
lib-$(CONFIG_COMM) += comm.o

12
libbb/die_if_bad_username.c
View File

@ -18,16 +18,20 @@
void FAST_FUNC die_if_bad_username(const char *name)
{
goto skip; /* 1st char being dash isn't valid */
/* 1st char being dash or dot isn't valid: */
goto skip;
/* For example, name like ".." can make adduser
* chown "/home/.." recursively - NOT GOOD
*/
do {
if (*name == '-')
if (*name == '-' || *name == '.')
continue;
skip:
if (isalnum(*name)
|| *name == '_'
|| *name == '.'
|| *name == '@'
|| (*name == '$' && !*(name + 1))
|| (*name == '$' && !name[1])
) {
continue;
}

18
loginutils/adduser.c
View File

@ -199,7 +199,21 @@ int adduser_main(int argc UNUSED_PARAM, char **argv)
/* set the owner and group so it is owned by the new user,
* then fix up the permissions to 2755. Can't do it before
* since chown will clear the setgid bit */
if ((mkdir(pw.pw_dir, 0755) != 0 && errno != EEXIST)
int mkdir_err = mkdir(pw.pw_dir, 0755);
if (mkdir_err == 0) {
/* New home. Copy /etc/skel to it */
const char *args[] = {
"chown", "-R",
xasprintf("%u:%u", (int)pw.pw_uid, (int)pw.pw_gid),
pw.pw_dir, NULL
};
/* Be silent on any errors (like: no /etc/skel) */
logmode = LOGMODE_NONE;
copy_file("/etc/skel", pw.pw_dir, FILEUTILS_RECUR);
logmode = LOGMODE_STDIO;
chown_main(4, (char**)args);
}
if ((mkdir_err != 0 && errno != EEXIST)
|| chown(pw.pw_dir, pw.pw_uid, pw.pw_gid) != 0
|| chmod(pw.pw_dir, 02755) != 0 /* set setgid bit on homedir */
) {
@ -212,5 +226,5 @@ int adduser_main(int argc UNUSED_PARAM, char **argv)
passwd_wrapper(pw.pw_name);
}
return 0;
return EXIT_SUCCESS;
}