1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 | /* vi: set sw=4 ts=4: */
/*
* password utility routines.
*
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
* Copyright (C) 2008 by Tito Ragusa <farmatito@tiscali.it>
*
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
#include "libbb.h"
/* TODO: maybe change API to return malloced data?
* This will allow to stop using libc functions returning
* pointers to static data (getpwuid)
*/
struct passwd* FAST_FUNC xgetpwnam(const char *name)
{
struct passwd *pw = getpwnam(name);
if (!pw)
bb_error_msg_and_die("unknown user %s", name);
return pw;
}
struct group* FAST_FUNC xgetgrnam(const char *name)
{
struct group *gr = getgrnam(name);
if (!gr)
bb_error_msg_and_die("unknown group %s", name);
return gr;
}
struct passwd* FAST_FUNC xgetpwuid(uid_t uid)
{
struct passwd *pw = getpwuid(uid);
if (!pw)
bb_error_msg_and_die("unknown uid %u", (unsigned)uid);
return pw;
}
struct group* FAST_FUNC xgetgrgid(gid_t gid)
{
struct group *gr = getgrgid(gid);
if (!gr)
bb_error_msg_and_die("unknown gid %u", (unsigned)gid);
return gr;
}
char* FAST_FUNC xuid2uname(uid_t uid)
{
struct passwd *pw = xgetpwuid(uid);
return pw->pw_name;
}
char* FAST_FUNC xgid2group(gid_t gid)
{
struct group *gr = xgetgrgid(gid);
return gr->gr_name;
}
char* FAST_FUNC uid2uname(uid_t uid)
{
struct passwd *pw = getpwuid(uid);
return (pw) ? pw->pw_name : NULL;
}
char* FAST_FUNC gid2group(gid_t gid)
{
struct group *gr = getgrgid(gid);
return (gr) ? gr->gr_name : NULL;
}
char* FAST_FUNC uid2uname_utoa(uid_t uid)
{
char *name = uid2uname(uid);
return (name) ? name : utoa(uid);
}
char* FAST_FUNC gid2group_utoa(gid_t gid)
{
char *name = gid2group(gid);
return (name) ? name : utoa(gid);
}
long FAST_FUNC xuname2uid(const char *name)
{
struct passwd *myuser;
myuser = xgetpwnam(name);
return myuser->pw_uid;
}
long FAST_FUNC xgroup2gid(const char *name)
{
struct group *mygroup;
mygroup = xgetgrnam(name);
return mygroup->gr_gid;
}
unsigned long FAST_FUNC get_ug_id(const char *s,
long FAST_FUNC (*xname2id)(const char *))
{
unsigned long r;
r = bb_strtoul(s, NULL, 10);
if (errno)
return xname2id(s);
return r;
}
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