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    Annotation of /trunk/mkinitrd-magellan/busybox/libbb/bb_pwd.c

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    Revision 984 - (hide annotations) (download)
    Sun May 30 11:32:42 2010 UTC (14 years ago) by niro
    File MIME type: text/plain
    File size: 2199 byte(s) 
    -updated to busybox-1.16.1 and enabled blkid/uuid support in default config
    1 niro 532 /* vi: set sw=4 ts=4: */
    2     /*
    3     * password utility routines.
    4     *
    5     * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
    6 niro 984 * Copyright (C) 2008 by Tito Ragusa <farmatito@tiscali.it>
    7 niro 532 *
    8     * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
    9     */
    10    
    11     #include "libbb.h"
    12    
    13 niro 984 /* TODO: maybe change API to return malloced data?
    14     * This will allow to stop using libc functions returning
    15     * pointers to static data (getpwuid)
    16     */
    17 niro 532
    18 niro 984 struct passwd* FAST_FUNC xgetpwnam(const char *name)
    19 niro 532 {
    20 niro 984 struct passwd *pw = getpwnam(name);
    21     if (!pw)
    22     bb_error_msg_and_die("unknown user %s", name);
    23     return pw;
    24 niro 532 }
    25    
    26 niro 984 struct group* FAST_FUNC xgetgrnam(const char *name)
    27 niro 816 {
    28 niro 984 struct group *gr = getgrnam(name);
    29     if (!gr)
    30     bb_error_msg_and_die("unknown group %s", name);
    31     return gr;
    32     }
    33 niro 532
    34 niro 984
    35     struct passwd* FAST_FUNC xgetpwuid(uid_t uid)
    36     {
    37     struct passwd *pw = getpwuid(uid);
    38     if (!pw)
    39     bb_error_msg_and_die("unknown uid %u", (unsigned)uid);
    40     return pw;
    41 niro 816 }
    42 niro 984
    43     struct group* FAST_FUNC xgetgrgid(gid_t gid)
    44 niro 532 {
    45 niro 984 struct group *gr = getgrgid(gid);
    46     if (!gr)
    47     bb_error_msg_and_die("unknown gid %u", (unsigned)gid);
    48     return gr;
    49     }
    50 niro 532
    51 niro 984 char* FAST_FUNC xuid2uname(uid_t uid)
    52     {
    53     struct passwd *pw = xgetpwuid(uid);
    54     return pw->pw_name;
    55 niro 532 }
    56    
    57 niro 984 char* FAST_FUNC xgid2group(gid_t gid)
    58 niro 532 {
    59 niro 984 struct group *gr = xgetgrgid(gid);
    60     return gr->gr_name;
    61     }
    62 niro 532
    63 niro 984 char* FAST_FUNC uid2uname(uid_t uid)
    64     {
    65     struct passwd *pw = getpwuid(uid);
    66     return (pw) ? pw->pw_name : NULL;
    67     }
    68 niro 532
    69 niro 984 char* FAST_FUNC gid2group(gid_t gid)
    70     {
    71     struct group *gr = getgrgid(gid);
    72     return (gr) ? gr->gr_name : NULL;
    73 niro 532 }
    74    
    75 niro 984 char* FAST_FUNC uid2uname_utoa(long uid)
    76     {
    77     char *name = uid2uname(uid);
    78     return (name) ? name : utoa(uid);
    79     }
    80    
    81     char* FAST_FUNC gid2group_utoa(long gid)
    82     {
    83     char *name = gid2group(gid);
    84     return (name) ? name : utoa(gid);
    85     }
    86    
    87 niro 816 long FAST_FUNC xuname2uid(const char *name)
    88 niro 532 {
    89     struct passwd *myuser;
    90    
    91 niro 984 myuser = xgetpwnam(name);
    92 niro 532 return myuser->pw_uid;
    93     }
    94    
    95 niro 984 long FAST_FUNC xgroup2gid(const char *name)
    96     {
    97     struct group *mygroup;
    98    
    99     mygroup = xgetgrnam(name);
    100     return mygroup->gr_gid;
    101     }
    102    
    103 niro 816 unsigned long FAST_FUNC get_ug_id(const char *s,
    104     long FAST_FUNC (*xname2id)(const char *))
    105 niro 532 {
    106     unsigned long r;
    107    
    108     r = bb_strtoul(s, NULL, 10);
    109     if (errno)
    110     return xname2id(s);
    111     return r;
    112     }