- consolidated password helpers
This commit is contained in:
Bernhard Reutner-Fischer
parent
f56b8e4b00
commit
c5280e8885
179
libbb/bb_pwd.c
Normal file
179
libbb/bb_pwd.c
Normal file
@ -0,0 +1,179 @@
|
||||
/* 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.
|
||||
*/
|
||||
|
||||
|
||||
#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 "libbb.h"
|
||||
#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 "libbb.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 "libbb.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 "libbb.h"
|
||||
#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>
|
||||
#include "libbb.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:
|
||||
*/
|
||||
|
||||
Loading…
Reference in New Issue
Block a user