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
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
|
/* vi: set sw=4 ts=4: */
/*
* password utility routines.
*
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
*
* Licensed under the GPL v2, see the file LICENSE in this tarball.
*/
#include "libbb.h"
#ifdef L_bb_getgrgid
/* Hacked by Tito Ragusa (c) 2004 <farmatito@tiscali.it> to make it more
* flexible :
*
* if bufsize is > 0 char *group cannot be set to NULL.
* On success groupname is written on static allocated buffer
* group (and a pointer to it is returned).
* On failure gid as string is written to static allocated
* buffer group and NULL is returned.
* if bufsize is = 0 char *group can be set to NULL.
* On success groupname is returned.
* On failure NULL is returned.
* if bufsize is < 0 char *group can be set to NULL.
* On success groupname is returned.
* On failure an error message is printed and
* the program exits.
*/
#include "grp_.h"
/* gets a groupname given a gid */
char * bb_getgrgid(char *group, long gid, int bufsize)
{
struct group *mygroup = getgrgid(gid);
return bb_getug(group, (mygroup) ?
mygroup->gr_name : (char *)mygroup, gid, bufsize, 'g');
}
#endif /* L_bb_getgrgid */
#ifdef L_bb_xgetgrnam
#include <stdio.h>
#include <string.h>
#include "pwd_.h"
#include "grp_.h"
/* returns a gid given a group name */
long bb_xgetgrnam(const char *name)
{
struct group *mygroup;
mygroup = getgrnam(name);
if (mygroup==NULL)
bb_error_msg_and_die("unknown group name: %s", name);
return (mygroup->gr_gid);
}
#endif /* L_bb_xgetgrnam */
#ifdef L_bb_xgetpwnam
#include <stdio.h>
#include <string.h>
#include "pwd_.h"
#include "grp_.h"
/* returns a uid given a username */
long bb_xgetpwnam(const char *name)
{
struct passwd *myuser;
myuser = getpwnam(name);
if (myuser==NULL)
bb_error_msg_and_die("unknown user name: %s", name);
return myuser->pw_uid;
}
#endif /* L_bb_xgetpwnam */
#ifdef L_bb_getpwuid
/* Hacked by Tito Ragusa (c) 2004 <farmatito@tiscali.it> to make it more
* flexible :
*
* if bufsize is > 0 char *name can not be set to NULL.
* On success username is written on the static allocated
* buffer name (and a pointer to it is returned).
* On failure uid as string is written to the static
* allocated buffer name and NULL is returned.
* if bufsize is = 0 char *name can be set to NULL.
* On success username is returned.
* On failure NULL is returned.
* if bufsize is < 0 char *name can be set to NULL
* On success username is returned.
* On failure an error message is printed and
* the program exits.
*/
#include "pwd_.h"
/* gets a username given a uid */
char * bb_getpwuid(char *name, long uid, int bufsize)
{
struct passwd *myuser = getpwuid(uid);
return bb_getug(name, (myuser) ?
myuser->pw_name : (char *)myuser , uid, bufsize, 'u');
}
#endif /* L_bb_getpwuid */
#ifdef L_bb_getug
/*
* if bufsize is > 0 char *buffer can not be set to NULL.
* If idname is not NULL it is written on the static
* allocated buffer (and a pointer to it is returned).
* if idname is NULL, id as string is written to the static
* allocated buffer and NULL is returned.
* if bufsize is = 0 char *buffer can be set to NULL.
* If idname exists a pointer to it is returned,
* else NULL is returned.
* if bufsize is < 0 char *buffer can be set to NULL.
* If idname exists a pointer to it is returned,
* else an error message is printed and the program exits.
*/
#include <stdio.h>
#include <assert.h>
/* internal function for bb_getpwuid and bb_getgrgid */
char * bb_getug(char *buffer, char *idname, long id, int bufsize, char prefix)
{
if(bufsize > 0 ) {
assert(buffer!=NULL);
if(idname) {
return safe_strncpy(buffer, idname, bufsize);
}
snprintf(buffer, bufsize, "%ld", id);
} else if(bufsize < 0 && !idname) {
bb_error_msg_and_die("unknown %cid %ld", prefix, id);
}
return idname;
}
#endif /* L_bb_getug */
#ifdef L_get_ug_id
/* indirect dispatcher for pwd helpers. */
#include <stdlib.h>
extern unsigned long get_ug_id(const char *s,
long (*__bb_getxxnam)(const char *))
{
unsigned long r;
char *p;
r = strtoul(s, &p, 10);
if (*p || (s == p)) {
r = __bb_getxxnam(s);
}
return r;
}
#endif /* L_get_ug_id */
/* END CODE */
/*
Local Variables:
c-file-style: "linux"
c-basic-offset: 4
tab-width: 4
End:
*/
|
