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new NOFORKs: pwdx,kill[all5],ttysize,realpath,readlink NOEXECs: date,resize

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function                                             old     new   delta
run_nofork_applet                                    258     280     +22
readlink_main                                        112     123     +11
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(add/remove: 0/0 grow/shrink: 2/0 up/down: 33/0)               Total: 33 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2017-08-03 19:00:01 +02:00
parent 663ae52676
commit 39194f0309
11 changed files with 106 additions and 93 deletions
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3
libbb/bb_pwd.c
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@ -31,9 +31,9 @@ struct group* FAST_FUNC xgetgrnam(const char *name)
return gr;
}
struct passwd* FAST_FUNC xgetpwuid(uid_t uid)
{
/* Note: used in nofork applets (whoami), be careful not to leak anything */
struct passwd *pw = getpwuid(uid);
if (!pw)
bb_error_msg_and_die("unknown uid %u", (unsigned)uid);
@ -50,6 +50,7 @@ struct group* FAST_FUNC xgetgrgid(gid_t gid)
char* FAST_FUNC xuid2uname(uid_t uid)
{
/* Note: used in nofork applets (whoami), be careful not to leak anything */
struct passwd *pw = xgetpwuid(uid);
return pw->pw_name;
}