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Replace the old and somewhat buggy pwd_grp stuff with the shiny

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new stuff mjn3 wrote for uClibc
This commit is contained in:
Eric Andersen 2004-07-15 12:53:49 +00:00
parent 837f058fb3
commit 9615a08218
20 changed files with 1403 additions and 1342 deletions
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113
include/grp_.h
View File

@ -1,39 +1,116 @@
#ifndef __CONFIG_GRP_H
#define __CONFIG_GRP_H
/* Copyright (C) 1991,92,95,96,97,98,99,2000,01 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
/*
* POSIX Standard: 9.2.1 Group Database Access <grp.h>
*/
#if !defined CONFIG_USE_BB_PWD_GRP
#include <grp.h>
#else
#ifndef _GRP_H
#define _GRP_H 1
#include <sys/types.h>
#include <features.h>
#include <stdio.h>
/* The group structure */
/* The group structure. */
struct group
{
char *gr_name; /* Group name. */
char *gr_passwd; /* Password. */
gid_t gr_gid; /* Group ID. */
char **gr_mem; /* Member list. */
char *gr_name; /* Group name. */
char *gr_passwd; /* Password. */
gid_t gr_gid; /* Group ID. */
char **gr_mem; /* Member list. */
};
extern void setgrent __P ((void));
extern void endgrent __P ((void));
extern struct group * getgrent __P ((void));
extern struct group * getgrgid __P ((__const gid_t gid));
extern struct group * getgrnam __P ((__const char * name));
/* Rewind the group-file stream. */
extern void setgrent (void);
extern struct group * fgetgrent __P ((FILE * file));
/* Close the group-file stream. */
extern void endgrent (void);
extern int setgroups __P ((size_t n, __const gid_t * groups));
extern int initgroups __P ((__const char * user, gid_t gid));
/* Read an entry from the group-file stream, opening it if necessary. */
extern struct group *getgrent (void);
extern struct group * bb_getgrent __P ((int grp_fd));
/* Read a group entry from STREAM. */
extern struct group *fgetgrent (FILE *__stream);
#endif /* USE_SYSTEM_PWD_GRP */
#endif /* __CONFIG_GRP_H */
/* Write the given entry onto the given stream. */
extern int putgrent (__const struct group *__restrict __p,
FILE *__restrict __f);
/* Search for an entry with a matching group ID. */
extern struct group *getgrgid (gid_t __gid);
/* Search for an entry with a matching group name. */
extern struct group *getgrnam (__const char *__name);
/* Reentrant versions of some of the functions above.
PLEASE NOTE: the `getgrent_r' function is not (yet) standardized.
The interface may change in later versions of this library. But
the interface is designed following the principals used for the
other reentrant functions so the chances are good this is what the
POSIX people would choose. */
extern int getgrent_r (struct group *__restrict __resultbuf,
char *__restrict __buffer, size_t __buflen,
struct group **__restrict __result);
/* Search for an entry with a matching group ID. */
extern int getgrgid_r (gid_t __gid, struct group *__restrict __resultbuf,
char *__restrict __buffer, size_t __buflen,
struct group **__restrict __result);
/* Search for an entry with a matching group name. */
extern int getgrnam_r (__const char *__restrict __name,
struct group *__restrict __resultbuf,
char *__restrict __buffer, size_t __buflen,
struct group **__restrict __result);
/* Read a group entry from STREAM. This function is not standardized
an probably never will. */
extern int fgetgrent_r (FILE *__restrict __stream,
struct group *__restrict __resultbuf,
char *__restrict __buffer, size_t __buflen,
struct group **__restrict __result);
/* Set the group set for the current user to GROUPS (N of them). */
extern int setgroups (size_t __n, __const gid_t *__groups);
/* Store at most *NGROUPS members of the group set for USER into
*GROUPS. Also include GROUP. The actual number of groups found is
returned in *NGROUPS. Return -1 if the if *NGROUPS is too small. */
extern int getgrouplist (__const char *__user, gid_t __group,
gid_t *__groups, int *__ngroups);
/* Initialize the group set for the current user
by reading the group database and using all groups
of which USER is a member. Also include GROUP. */
extern int initgroups (__const char *__user, gid_t __group);
#endif /* grp.h */
#endif

105
include/pwd_.h
View File

@ -1,11 +1,33 @@
#ifndef __CONFIG_PWD_H
#define __CONFIG_PWD_H
/* Copyright (C) 1991,92,95,96,97,98,99,2001 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
/*
* POSIX Standard: 9.2.2 User Database Access <pwd.h>
*/
#if !defined CONFIG_USE_BB_PWD_GRP
#include <pwd.h>
#else
#ifndef _PWD_H
#define _PWD_H 1
#include <sys/types.h>
#include <features.h>
#include <stdio.h>
@ -13,29 +35,72 @@
/* The passwd structure. */
struct passwd
{
char *pw_name; /* Username. */
char *pw_passwd; /* Password. */
uid_t pw_uid; /* User ID. */
gid_t pw_gid; /* Group ID. */
char *pw_gecos; /* Real name. */
char *pw_dir; /* Home directory. */
char *pw_shell; /* Shell program. */
char *pw_name; /* Username. */
char *pw_passwd; /* Password. */
uid_t pw_uid; /* User ID. */
gid_t pw_gid; /* Group ID. */
char *pw_gecos; /* Real name. */
char *pw_dir; /* Home directory. */
char *pw_shell; /* Shell program. */
};
extern void setpwent __P ((void));
extern void endpwent __P ((void));
extern struct passwd * getpwent __P ((void));
extern int putpwent __P ((__const struct passwd * __p, FILE * __f));
extern int getpw __P ((uid_t uid, char *buf));
/* Rewind the password-file stream. */
extern void setpwent (void);
extern struct passwd * fgetpwent __P ((FILE * file));
/* Close the password-file stream. */
extern void endpwent (void);
extern struct passwd * getpwuid __P ((__const uid_t));
extern struct passwd * getpwnam __P ((__const char *));
/* Read an entry from the password-file stream, opening it if necessary. */
extern struct passwd *getpwent (void);
extern struct passwd * __getpwent __P ((__const int passwd_fd));
/* Read an entry from STREAM. */
extern struct passwd *fgetpwent (FILE *__stream);
#endif /* USE_SYSTEM_PWD_GRP */
#endif /* __CONFIG_PWD_H */
/* Write the given entry onto the given stream. */
extern int putpwent (__const struct passwd *__restrict __p,
FILE *__restrict __f);
/* Search for an entry with a matching user ID. */
extern struct passwd *getpwuid (uid_t __uid);
/* Search for an entry with a matching username. */
extern struct passwd *getpwnam (__const char *__name);
/* Reentrant versions of some of the functions above.
PLEASE NOTE: the `getpwent_r' function is not (yet) standardized.
The interface may change in later versions of this library. But
the interface is designed following the principals used for the
other reentrant functions so the chances are good this is what the
POSIX people would choose. */
extern int getpwent_r (struct passwd *__restrict __resultbuf,
char *__restrict __buffer, size_t __buflen,
struct passwd **__restrict __result);
extern int getpwuid_r (uid_t __uid,
struct passwd *__restrict __resultbuf,
char *__restrict __buffer, size_t __buflen,
struct passwd **__restrict __result);
extern int getpwnam_r (__const char *__restrict __name,
struct passwd *__restrict __resultbuf,
char *__restrict __buffer, size_t __buflen,
struct passwd **__restrict __result);
/* Read an entry from STREAM. This function is not standardized and
probably never will. */
extern int fgetpwent_r (FILE *__restrict __stream,
struct passwd *__restrict __resultbuf,
char *__restrict __buffer, size_t __buflen,
struct passwd **__restrict __result);
/* Re-construct the password-file line for the given uid
in the given buffer. This knows the format that the caller
will expect, but this need not be the format of the password file. */
extern int getpw (uid_t __uid, char *__buffer);
#endif /* pwd.h */
#endif

150
include/shadow_.h
View File

@ -1,82 +1,98 @@
/*
* Copyright 1988 - 1994, Julianne Frances Haugh <jockgrrl@austin.rr.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Julianne F. Haugh nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY JULIE HAUGH AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL JULIE HAUGH OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/* Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
This file is part of the GNU C Library.
#ifndef _H_SHADOW
#define _H_SHADOW
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
#ifdef USE_SYSTEM_SHADOW
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
/* Declaration of types and functions for shadow password suite. */
#if !defined CONFIG_USE_BB_SHADOW
#include <shadow.h>
#else
/*
* This information is not derived from AT&T licensed sources. Posted
* to the USENET 11/88, and updated 11/90 with information from SVR4.
*
* $Id: shadow_.h,v 1.1 2002/06/23 04:24:20 andersen Exp $
*/
#ifndef _SHADOW_H
#define _SHADOW_H 1
typedef long sptime;
#include <stdio.h>
/*
* Shadow password security file structure.
*/
/* Paths to the user database files. */
#ifndef _PATH_SHADOW
#define _PATH_SHADOW "/etc/shadow"
#endif
#define SHADOW _PATH_SHADOW
struct spwd {
char *sp_namp; /* login name */
char *sp_pwdp; /* encrypted password */
sptime sp_lstchg; /* date of last change */
sptime sp_min; /* minimum number of days between changes */
sptime sp_max; /* maximum number of days between changes */
sptime sp_warn; /* number of days of warning before password
expires */
sptime sp_inact; /* number of days after password expires
until the account becomes unusable. */
sptime sp_expire; /* days since 1/1/70 until account expires */
unsigned long sp_flag; /* reserved for future use */
/* Structure of the password file. */
struct spwd
{
char *sp_namp; /* Login name. */
char *sp_pwdp; /* Encrypted password. */
long int sp_lstchg; /* Date of last change. */
long int sp_min; /* Minimum number of days between changes. */
long int sp_max; /* Maximum number of days between changes. */
long int sp_warn; /* Number of days to warn user to change
the password. */
long int sp_inact; /* Number of days the account may be
inactive. */
long int sp_expire; /* Number of days since 1970-01-01 until
account expires. */
unsigned long int sp_flag; /* Reserved. */
};
/*
* Shadow password security file functions.
*/
#include <stdio.h> /* for FILE */
/* Open database for reading. */
extern void setspent (void);
extern struct spwd *getspent(void);
extern struct spwd *sgetspent(const char *);
extern struct spwd *fgetspent(FILE *);
extern void setspent(void);
extern void endspent(void);
extern int putspent(const struct spwd *, FILE *);
extern struct spwd *getspnam(const char *name);
extern struct spwd *pwd_to_spwd(const struct passwd *pw);
/* Close database. */
extern void endspent (void);
#endif /* USE_LOCAL_SHADOW */
/* Get next entry from database, perhaps after opening the file. */
extern struct spwd *getspent (void);
#endif /* _H_SHADOW */
/* Get shadow entry matching NAME. */
extern struct spwd *getspnam (__const char *__name);
/* Read shadow entry from STRING. */
extern struct spwd *sgetspent (__const char *__string);
/* Read next shadow entry from STREAM. */
extern struct spwd *fgetspent (FILE *__stream);
/* Write line containing shadow password entry to stream. */
extern int putspent (__const struct spwd *__p, FILE *__stream);
/* Reentrant versions of some of the functions above. */
extern int getspent_r (struct spwd *__result_buf, char *__buffer,
size_t __buflen, struct spwd **__result);
extern int getspnam_r (__const char *__name, struct spwd *__result_buf,
char *__buffer, size_t __buflen,
struct spwd **__result)__THROW;
extern int sgetspent_r (__const char *__string, struct spwd *__result_buf,
char *__buffer, size_t __buflen,
struct spwd **__result);
extern int fgetspent_r (FILE *__stream, struct spwd *__result_buf,
char *__buffer, size_t __buflen,
struct spwd **__result);
/* Protect password file against multi writers. */
extern int lckpwdf (void);
/* Unlock password file. */
extern int ulckpwdf (void);
#endif /* shadow.h */
#endif

31
libpwdgrp/Makefile.in
View File

@ -22,14 +22,31 @@ ifndef $(LIBPWDGRP_DIR)
LIBPWDGRP_DIR:=$(TOPDIR)libpwdgrp/
endif
LIBPWDGRP-y:=
LIBPWDGRP-$(CONFIG_USE_BB_PWD_GRP) += __getgrent.o __getgrent.o __getpwent.o\
fgetgrent.o fgetpwent.o getgrgid.o getgrnam.o getpw.o getpwnam.o \
getpwuid.o grent.o initgroups.o putpwent.o pwent.o setgroups.o
LIBPWDGRP-$(CONFIG_USE_BB_SHADOW) += shadow.o
LIBPWDGRP_MSRC0:=$(LIBPWDGRP_DIR)pwd_grp.c
LIBPWDGRP_MOBJ0-$(CONFIG_USE_BB_PWD_GRP):= fgetpwent_r.o fgetgrent_r.o \
fgetpwent.o fgetgrent.o getpwnam_r.o getgrnam_r.o getpwuid_r.o \
getgrgid_r.o getpwuid.o getgrgid.o getpwnam.o getgrnam.o getpw.o \
getpwent_r.o getgrent_r.o getpwent.o getgrent.o \
initgroups.o putpwent.o putgrent.o
LIBPWDGRP_MOBJS0=$(patsubst %,$(LIBPWDGRP_DIR)%, $(LIBPWDGRP_MOBJ0-y))
LIBPWDGRP_MSRC1:=$(LIBPWDGRP_DIR)pwd_grp.c
LIBPWDGRP_MOBJ1-$(CONFIG_USE_BB_PWD_GRP):= __parsepwent.o __parsegrent.o \
__pgsreader.o fgetspent_r.o fgetspent.o sgetspent_r.o getspnam_r.o \
getspnam.o getspent_r.o getspent.o sgetspent.o \
putspent.o __parsespent.o # getspuid_r.o getspuid.o
LIBPWDGRP_MOBJS1=$(patsubst %,$(LIBPWDGRP_DIR)%, $(LIBPWDGRP_MOBJ1-y))
libraries-y+=$(LIBPWDGRP_DIR)$(LIBPWDGRP_AR)
$(LIBPWDGRP_DIR)$(LIBPWDGRP_AR): $(patsubst %,$(LIBPWDGRP_DIR)%, $(LIBPWDGRP-y))
$(AR) -ro $@ $(patsubst %,$(LIBPWDGRP_DIR)%, $(LIBPWDGRP-y))
$(LIBPWDGRP_DIR)$(LIBPWDGRP_AR): $(LIBPWDGRP_MOBJS0) $(LIBPWDGRP_MOBJS1)
$(AR) -ro $@ $(LIBPWDGRP_MOBJS0) $(LIBPWDGRP_MOBJS1)
$(LIBPWDGRP_MOBJS0): $(LIBPWDGRP_MSRC0)
$(CC) $(CFLAGS) $(EXTRA_CFLAGS) -DL_$(notdir $*) -c $< -o $@
$(LIBPWDGRP_MOBJS1): $(LIBPWDGRP_MSRC1)
$(CC) $(CFLAGS) $(EXTRA_CFLAGS) -DL_$(notdir $*) -c $< -o $@

203
libpwdgrp/__getgrent.c
View File

@ -1,203 +0,0 @@
/*
* __getgrent.c - This file is part of the libc-8086/grp package for ELKS,
* Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include "busybox.h"
#include "grp_.h"
/*
* Define GR_SCALE_DYNAMIC if you want grp to dynamically scale its read buffer
* so that lines of any length can be used. On very very small systems,
* you may want to leave this undefined because it will make the grp functions
* somewhat larger (because of the inclusion of malloc and the code necessary).
* On larger systems, you will want to define this, because grp will _not_
* deal with long lines gracefully (they will be skipped).
*/
#undef GR_SCALE_DYNAMIC
#ifndef GR_SCALE_DYNAMIC
/*
* If scaling is not dynamic, the buffers will be statically allocated, and
* maximums must be chosen. GR_MAX_LINE_LEN is the maximum number of
* characters per line in the group file. GR_MAX_MEMBERS is the maximum
* number of members of any given group.
*/
#define GR_MAX_LINE_LEN 128
/* GR_MAX_MEMBERS = (GR_MAX_LINE_LEN-(24+3+6))/9 */
#define GR_MAX_MEMBERS 11
#endif /* !GR_SCALE_DYNAMIC */
/*
* Define GR_DYNAMIC_GROUP_LIST to make initgroups() dynamically allocate
* space for it's GID array before calling setgroups(). This is probably
* unnecessary scalage, so it's undefined by default.
*/
#undef GR_DYNAMIC_GROUP_LIST
#ifndef GR_DYNAMIC_GROUP_LIST
/*
* GR_MAX_GROUPS is the size of the static array initgroups() uses for
* its static GID array if GR_DYNAMIC_GROUP_LIST isn't defined.
*/
#define GR_MAX_GROUPS 64
#endif /* !GR_DYNAMIC_GROUP_LIST */
/*
* This is the core group-file read function. It behaves exactly like
* getgrent() except that it is passed a file descriptor. getgrent()
* is just a wrapper for this function.
*/
struct group *bb_getgrent(int grp_fd)
{
#ifndef GR_SCALE_DYNAMIC
static char line_buff[GR_MAX_LINE_LEN];
static char *members[GR_MAX_MEMBERS];
#else
static char *line_buff = NULL;
static char **members = NULL;
short line_index;
short buff_size;
#endif
static struct group group;
register char *ptr;
char *field_begin;
short member_num;
char *endptr;
int line_len;
/* We use the restart label to handle malformatted lines */
restart:
#ifdef GR_SCALE_DYNAMIC
line_index = 0;
buff_size = 256;
#endif
#ifndef GR_SCALE_DYNAMIC
/* Read the line into the static buffer */
if ((line_len = read(grp_fd, line_buff, GR_MAX_LINE_LEN)) <= 0)
return NULL;
field_begin = strchr(line_buff, '\n');
if (field_begin != NULL)
lseek(grp_fd, (long) (1 + field_begin - (line_buff + line_len)),
SEEK_CUR);
else { /* The line is too long - skip it :-\ */
do {
if ((line_len = read(grp_fd, line_buff, GR_MAX_LINE_LEN)) <= 0)
return NULL;
} while (!(field_begin = strchr(line_buff, '\n')));
lseek(grp_fd, (long) ((field_begin - line_buff) - line_len + 1),
SEEK_CUR);
goto restart;
}
if (*line_buff == '#' || *line_buff == ' ' || *line_buff == '\n' ||
*line_buff == '\t')
goto restart;
*field_begin = '\0';
#else /* !GR_SCALE_DYNAMIC */
line_buff = realloc(line_buff, buff_size);
while (1) {
if ((line_len = read(grp_fd, line_buff + line_index,
buff_size - line_index)) <= 0)
return NULL;
field_begin = strchr(line_buff, '\n');
if (field_begin != NULL) {
lseek(grp_fd,
(long) (1 + field_begin -
(line_len + line_index + line_buff)), SEEK_CUR);
*field_begin = '\0';
if (*line_buff == '#' || *line_buff == ' '
|| *line_buff == '\n' || *line_buff == '\t')
goto restart;
break;
} else { /* Allocate some more space */
line_index = buff_size;
buff_size += 256;
line_buff = realloc(line_buff, buff_size);
}
}
#endif /* GR_SCALE_DYNAMIC */
/* Now parse the line */
group.gr_name = line_buff;
ptr = strchr(line_buff, ':');
if (ptr == NULL)
goto restart;
*ptr++ = '\0';
group.gr_passwd = ptr;
ptr = strchr(ptr, ':');
if (ptr == NULL)
goto restart;
*ptr++ = '\0';
field_begin = ptr;
ptr = strchr(ptr, ':');
if (ptr == NULL)
goto restart;
*ptr++ = '\0';
group.gr_gid = (gid_t) strtoul(field_begin, &endptr, 10);
if (*endptr != '\0')
goto restart;
member_num = 0;
field_begin = ptr;
#ifndef GR_SCALE_DYNAMIC
while ((ptr = strchr(ptr, ',')) != NULL) {
*ptr = '\0';
ptr++;
members[member_num] = field_begin;
field_begin = ptr;
member_num++;
}
if (*field_begin == '\0')
members[member_num] = NULL;
else {
members[member_num] = field_begin;
members[member_num + 1] = NULL;
}
#else /* !GR_SCALE_DYNAMIC */
free(members);
members = (char **) malloc((member_num + 1) * sizeof(char *));
for ( ; field_begin && *field_begin != '\0'; field_begin = ptr) {
if ((ptr = strchr(field_begin, ',')) != NULL)
*ptr++ = '\0';
members[member_num++] = field_begin;
members = (char **) realloc(members,
(member_num + 1) * sizeof(char *));
}
members[member_num] = NULL;
#endif /* GR_SCALE_DYNAMIC */
group.gr_mem = members;
return &group;
}

115
libpwdgrp/__getpwent.c
View File

@ -1,115 +0,0 @@
/*
* __getpwent.c - This file is part of the libc-8086/pwd package for ELKS,
* Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
#include "pwd_.h"
#include "busybox.h"
#define PWD_BUFFER_SIZE 256
/* This isn't as flash as my previous version -- it doesn't dynamically
scale down the gecos on too-long lines, but it also makes fewer syscalls,
so it's probably nicer. Write me if you want the old version. Maybe I
should include it as a build-time option... ?
-Nat <ndf@linux.mit.edu> */
struct passwd *__getpwent(int pwd_fd)
{
static char line_buff[PWD_BUFFER_SIZE];
static struct passwd passwd;
char *field_begin;
char *endptr;
char *gid_ptr=NULL;
char *uid_ptr=NULL;
int line_len;
int i;
/* We use the restart label to handle malformatted lines */
restart:
/* Read the passwd line into the static buffer using a minimal of
syscalls. */
if ((line_len = read(pwd_fd, line_buff, PWD_BUFFER_SIZE)) <= 0)
return NULL;
field_begin = strchr(line_buff, '\n');
if (field_begin != NULL)
lseek(pwd_fd, (long) (1 + field_begin - (line_buff + line_len)),
SEEK_CUR);
else { /* The line is too long - skip it. :-\ */
do {
if ((line_len = read(pwd_fd, line_buff, PWD_BUFFER_SIZE)) <= 0)
return NULL;
} while (!(field_begin = strchr(line_buff, '\n')));
lseek(pwd_fd, (long) (field_begin - line_buff) - line_len + 1,
SEEK_CUR);
goto restart;
}
if (*line_buff == '#' || *line_buff == ' ' || *line_buff == '\n' ||
*line_buff == '\t')
goto restart;
*field_begin = '\0';
/* We've read the line; now parse it. */
field_begin = line_buff;
for (i = 0; i < 7; i++) {
switch (i) {
case 0:
passwd.pw_name = field_begin;
break;
case 1:
passwd.pw_passwd = field_begin;
break;
case 2:
uid_ptr = field_begin;
break;
case 3:
gid_ptr = field_begin;
break;
case 4:
passwd.pw_gecos = field_begin;
break;
case 5:
passwd.pw_dir = field_begin;
break;
case 6:
passwd.pw_shell = field_begin;
break;
}
if (i < 6) {
field_begin = strchr(field_begin, ':');
if (field_begin == NULL)
goto restart;
*field_begin++ = '\0';
}
}
passwd.pw_gid = (gid_t) strtoul(gid_ptr, &endptr, 10);
if (*endptr != '\0')
goto restart;
passwd.pw_uid = (uid_t) strtoul(uid_ptr, &endptr, 10);
if (*endptr != '\0')
goto restart;
return &passwd;
}

35
libpwdgrp/fgetgrent.c
View File

@ -1,35 +0,0 @@
/*
* fgetgrent.c - This file is part of the libc-8086/grp package for ELKS,
* Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include "busybox.h"
#include <stdio.h>
#include <errno.h>
#include "grp_.h"
struct group *fgetgrent(FILE * file)
{
if (file == NULL) {
errno = EINTR;
return NULL;
}
return bb_getgrent(fileno(file));
}

35
libpwdgrp/fgetpwent.c
View File

@ -1,35 +0,0 @@
/*
* fgetpwent.c - This file is part of the libc-8086/pwd package for ELKS,
* Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include "busybox.h"
#include <errno.h>
#include <stdio.h>
#include "pwd_.h"
struct passwd *fgetpwent(FILE * file)
{
if (file == NULL) {
errno = EINTR;
return NULL;
}
return __getpwent(fileno(file));
}

44
libpwdgrp/getgrgid.c
View File

@ -1,44 +0,0 @@
/*
* getgrgid.c - This file is part of the libc-8086/grp package for ELKS,
* Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include "busybox.h"
#include <sys/types.h>
#include <unistd.h>
#include <fcntl.h>
#include "grp_.h"
struct group *getgrgid(const gid_t gid)
{
struct group *group;
int grp_fd;
if ((grp_fd = open(bb_path_group_file, O_RDONLY)) < 0)
return NULL;
while ((group = bb_getgrent(grp_fd)) != NULL)
if (group->gr_gid == gid) {
close(grp_fd);
return group;
}
close(grp_fd);
return NULL;
}

50
libpwdgrp/getgrnam.c
View File

@ -1,50 +0,0 @@
/*
* getgrnam.c - This file is part of the libc-8086/grp package for ELKS,
* Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include "busybox.h"
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include "grp_.h"
struct group *getgrnam(const char *name)
{
int grp_fd;
struct group *group;
if (name == NULL) {
errno = EINVAL;
return NULL;
}
if ((grp_fd = open(bb_path_group_file, O_RDONLY)) < 0)
return NULL;
while ((group = bb_getgrent(grp_fd)) != NULL)
if (!strcmp(group->gr_name, name)) {
close(grp_fd);
return group;
}
close(grp_fd);
return NULL;
}

47
libpwdgrp/getpw.c
View File

@ -1,47 +0,0 @@
/*
* getpw.c - This file is part of the libc-8086/pwd package for ELKS,
* Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include "busybox.h"
#include <sys/types.h>
#include <errno.h>
#include <stdio.h>
#include "pwd_.h"
int getpw(uid_t uid, char *buf)
{
struct passwd *passwd;
if (buf == NULL) {
errno = EINVAL;
return -1;
}
if ((passwd = getpwuid(uid)) == NULL)
return -1;
if (sprintf (buf, "%s:%s:%u:%u:%s:%s:%s", passwd->pw_name, passwd->pw_passwd,
passwd->pw_gid, passwd->pw_uid, passwd->pw_gecos, passwd->pw_dir,
passwd->pw_shell) < 0) {
errno = ENOBUFS;
return -1;
}
return 0;
}

51
libpwdgrp/getpwnam.c
View File

@ -1,51 +0,0 @@
/*
* getpwnam.c - This file is part of the libc-8086/pwd package for ELKS,
* Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include "busybox.h"
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include "pwd_.h"
struct passwd *getpwnam(const char *name)
{
int passwd_fd;
struct passwd *passwd;
if (name == NULL) {
errno = EINVAL;
return NULL;
}
if ((passwd_fd = open(bb_path_passwd_file, O_RDONLY)) < 0)
return NULL;
while ((passwd = __getpwent(passwd_fd)) != NULL)
if (!strcmp(passwd->pw_name, name)) {
close(passwd_fd);
return passwd;
}
close(passwd_fd);
return NULL;
}

44
libpwdgrp/getpwuid.c
View File

@ -1,44 +0,0 @@
/*
* getpwuid.c - This file is part of the libc-8086/pwd package for ELKS,
* Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include "busybox.h"
#include "pwd_.h"
struct passwd *getpwuid(uid_t uid)
{
int passwd_fd;
struct passwd *passwd;
if ((passwd_fd = open(bb_path_passwd_file, O_RDONLY)) < 0)
return NULL;
while ((passwd = __getpwent(passwd_fd)) != NULL)
if (passwd->pw_uid == uid) {
close(passwd_fd);
return passwd;
}
close(passwd_fd);
return NULL;
}

54
libpwdgrp/grent.c
View File

@ -1,54 +0,0 @@
/*
* grent.c - This file is part of the libc-8086/grp package for ELKS,
* Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
/*
* setgrent(), endgrent(), and getgrent() are mutually-dependent functions,
* so they are all included in the same object file, and thus all linked
* in together.
*/
#include "busybox.h"
#include <unistd.h>
#include <fcntl.h>
#include "grp_.h"
static int grp_fd = -1;
void setgrent(void)
{
if (grp_fd != -1)
close(grp_fd);
grp_fd = open(bb_path_group_file, O_RDONLY);
}
void endgrent(void)
{
if (grp_fd != -1)
close(grp_fd);
grp_fd = -1;
}
struct group *getgrent(void)
{
if (grp_fd == -1)
return NULL;
return bb_getgrent(grp_fd);
}

115
libpwdgrp/initgroups.c
View File

@ -1,115 +0,0 @@
/*
* initgroups.c - This file is part of the libc-8086/grp package for ELKS,
* Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include "busybox.h"
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
#include "grp_.h"
/*
* Define GR_SCALE_DYNAMIC if you want grp to dynamically scale its read buffer
* so that lines of any length can be used. On very very small systems,
* you may want to leave this undefined because it will make the grp functions
* somewhat larger (because of the inclusion of malloc and the code necessary).
* On larger systems, you will want to define this, because grp will _not_
* deal with long lines gracefully (they will be skipped).
*/
#undef GR_SCALE_DYNAMIC
#ifndef GR_SCALE_DYNAMIC
/*
* If scaling is not dynamic, the buffers will be statically allocated, and
* maximums must be chosen. GR_MAX_LINE_LEN is the maximum number of
* characters per line in the group file. GR_MAX_MEMBERS is the maximum
* number of members of any given group.
*/
#define GR_MAX_LINE_LEN 128
/* GR_MAX_MEMBERS = (GR_MAX_LINE_LEN-(24+3+6))/9 */
#define GR_MAX_MEMBERS 11
#endif /* !GR_SCALE_DYNAMIC */
/*
* Define GR_DYNAMIC_GROUP_LIST to make initgroups() dynamically allocate
* space for it's GID array before calling setgroups(). This is probably
* unnecessary scalage, so it's undefined by default.
*/
#undef GR_DYNAMIC_GROUP_LIST
#ifndef GR_DYNAMIC_GROUP_LIST
/*
* GR_MAX_GROUPS is the size of the static array initgroups() uses for
* its static GID array if GR_DYNAMIC_GROUP_LIST isn't defined.
*/
#define GR_MAX_GROUPS 64
#endif /* !GR_DYNAMIC_GROUP_LIST */
int initgroups(__const char *user, gid_t gid)
{
register struct group *group;
#ifndef GR_DYNAMIC_GROUP_LIST
gid_t group_list[GR_MAX_GROUPS];
#else
gid_t *group_list = NULL;
#endif
register char **tmp_mem;
int num_groups;
int grp_fd;
if ((grp_fd = open(bb_path_group_file, O_RDONLY)) < 0)
return -1;
num_groups = 0;
#ifdef GR_DYNAMIC_GROUP_LIST
group_list = (gid_t *) realloc(group_list, 1);
#endif
group_list[num_groups] = gid;
#ifndef GR_DYNAMIC_GROUP_LIST
while (num_groups < GR_MAX_GROUPS &&
(group = bb_getgrent(grp_fd)) != NULL)
#else
while ((group = bb_getgrent(grp_fd)) != NULL)
#endif
{
if (group->gr_gid != gid)
{
tmp_mem = group->gr_mem;
while (*tmp_mem != NULL) {
if (!strcmp(*tmp_mem, user)) {
num_groups++;
#ifdef GR_DYNAMIC_GROUP_LIST
group_list = (gid_t *) realloc(group_list, num_groups *
sizeof(gid_t *));
#endif
group_list[num_groups-1] = group->gr_gid;
}
tmp_mem++;
}
}
}
close(grp_fd);
return setgroups(num_groups, group_list);
}

39
libpwdgrp/putpwent.c
View File

@ -1,39 +0,0 @@
/*
* putpwent.c - This file is part of the libc-8086/pwd package for ELKS,
* Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include "busybox.h"
#include <stdio.h>
#include <errno.h>
#include "pwd_.h"
int putpwent(const struct passwd *passwd, FILE * f)
{
if (passwd == NULL || f == NULL) {
errno = EINVAL;
return -1;
}
if (fprintf (f, "%s:%s:%u:%u:%s:%s:%s\n", passwd->pw_name, passwd->pw_passwd,
passwd->pw_uid, passwd->pw_gid, passwd->pw_gecos, passwd->pw_dir,
passwd->pw_shell) < 0)
return -1;
return 0;
}

1116
libpwdgrp/pwd_grp.c Normal file
View File

File diff suppressed because it is too large Load Diff

58
libpwdgrp/pwent.c
View File

@ -1,58 +0,0 @@
/*
* pwent.c - This file is part of the libc-8086/pwd package for ELKS,
* Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <unistd.h>
#include <stdlib.h>
#include <errno.h>
#include <fcntl.h>
#include "busybox.h"
#include "pwd_.h"
/*
* setpwent(), endpwent(), and getpwent() are included in the same object
* file, since one cannot be used without the other two, so it makes sense to
* link them all in together.
*/
/* file descriptor for the password file currently open */
static int pw_fd = -1;
void setpwent(void)
{
if (pw_fd != -1)
close(pw_fd);
pw_fd = open(bb_path_passwd_file, O_RDONLY);
}
void endpwent(void)
{
if (pw_fd != -1)
close(pw_fd);
pw_fd = -1;
}
struct passwd *getpwent(void)
{
if (pw_fd != -1)
return (__getpwent(pw_fd));
return NULL;
}

40
libpwdgrp/setgroups.c
View File

@ -1,40 +0,0 @@
/* vi: set sw=4 ts=4: */
/*
* Taken from the set of syscalls for uClibc
*
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Library General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
* for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include "busybox.h"
#include <errno.h>
#include <unistd.h>
#include <features.h>
#include <sys/types.h>
/* Kernel headers before 2.1.mumble need this on the Alpha to get
_syscall* defined. */
#define __LIBRARY__
#include <sys/syscall.h>
#include "grp_.h"
int setgroups(size_t size, const gid_t * list)
{
return(syscall(__NR_setgroups, size, list));
}

300
libpwdgrp/shadow.c
View File

@ -1,300 +0,0 @@
/* vi: set sw=4 ts=4: */
/*
* Copyright 1989 - 1994, Julianne Frances Haugh
* <jockgrrl@austin.rr.com>, <jfh@austin.ibm.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Julianne F. Haugh nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY JULIE HAUGH AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL JULIE HAUGH OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/* TODO: fgetspent_r.c getspent_r.c getspnam_r.c sgetspent_r.c
* lckpwdf ulckpwdf
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "busybox.h"
#include "shadow_.h"
static FILE *shadow;
static char spwbuf[BUFSIZ];
static struct spwd spwd;
#define FIELDS 9
#define OFIELDS 5
/* setspent - initialize access to shadow text and DBM files */
void setspent(void)
{
if (shadow) {
rewind(shadow);
} else {
shadow = bb_xfopen(bb_path_shadow_file, "r");
}
}
/* endspent - terminate access to shadow text and DBM files */
void endspent(void)
{
if (shadow)
(void) fclose(shadow);
shadow = (FILE *) 0;
}
/* getspent - get a (struct spwd *) from the current shadow file */
struct spwd *getspent(void)
{
if (!shadow)
setspent();
return (fgetspent(shadow));
}
/* getspnam - get a shadow entry by name */
struct spwd *getspnam(const char *name)
{
struct spwd *sp;
if (!name || !strlen(name))
return NULL;
setspent();
while ((sp = getspent()) != NULL) {
if (strcmp(name, sp->sp_namp) == 0)
break;
}
endspent();
return (sp);
}
/* sgetspent - convert string in shadow file format to (struct spwd *) */
/* returns NULL on error */
struct spwd *sgetspent(const char *string)
{
char *fields[FIELDS];
char *cp;
char *cpp;
int i;
/*
* Copy string to local buffer. It has to be tokenized and we
* have to do that to our private copy.
*/
if (strlen(string) >= sizeof spwbuf)
/* return 0; */
return NULL;
strcpy(spwbuf, string);
if ((cp = strrchr(spwbuf, '\n')))
*cp = '\0';
/*
* Tokenize the string into colon separated fields. Allow up to
* FIELDS different fields.
*/
for (cp = spwbuf, i = 0; *cp && i < FIELDS; i++) {
fields[i] = cp;
while (*cp && *cp != ':')
cp++;
if (*cp)
*cp++ = '\0';
}
/*
* It is acceptable for the last SVR4 field to be blank. This
* results in the loop being terminated early. In which case,
* we just make the last field be blank and be done with it.
*/
if (i == (FIELDS - 1))
fields[i++] = cp;
if ((cp && *cp) || (i != FIELDS && i != OFIELDS))
/* return 0; */
return NULL;
/*
* Start populating the structure. The fields are all in
* static storage, as is the structure we pass back. If we
* ever see a name with '+' as the first character, we try
* to turn on NIS processing.
*/
spwd.sp_namp = fields[0];
spwd.sp_pwdp = fields[1];
/*
* Get the last changed date. For all of the integer fields,
* we check for proper format. It is an error to have an
* incorrectly formatted number, unless we are using NIS.
*/
if ((spwd.sp_lstchg = strtol(fields[2], &cpp, 10)) == 0 && *cpp) {
/* return 0; */
return NULL;
} else if (fields[2][0] == '\0')
spwd.sp_lstchg = -1;
/*
* Get the minimum period between password changes.
*/
if ((spwd.sp_min = strtol(fields[3], &cpp, 10)) == 0 && *cpp) {
/* return 0; */
return NULL;
} else if (fields[3][0] == '\0')
spwd.sp_min = -1;
/*
* Get the maximum number of days a password is valid.
*/
if ((spwd.sp_max = strtol(fields[4], &cpp, 10)) == 0 && *cpp) {
/* return 0; */
return NULL;
} else if (fields[4][0] == '\0')
spwd.sp_max = -1;
/*
* If there are only OFIELDS fields (this is a SVR3.2 /etc/shadow
* formatted file), initialize the other field members to -1.
*/
if (i == OFIELDS) {
spwd.sp_warn = spwd.sp_inact = spwd.sp_expire = spwd.sp_flag = -1;
return &spwd;
}
/*
* The rest of the fields are mandatory for SVR4, but optional
* for anything else. However, if one is present the others
* must be as well.
*/
/*
* Get the number of days of password expiry warning.
*/
if ((spwd.sp_warn = strtol(fields[5], &cpp, 10)) == 0 && *cpp) {
/* return 0; */
return NULL;
} else if (fields[5][0] == '\0')
spwd.sp_warn = -1;
/*
* Get the number of days of inactivity before an account is
* disabled.
*/
if ((spwd.sp_inact = strtol(fields[6], &cpp, 10)) == 0 && *cpp) {
/* return 0; */
return NULL;
} else if (fields[6][0] == '\0')
spwd.sp_inact = -1;
/*
* Get the number of days after the epoch before the account is
* set to expire.
*/
if ((spwd.sp_expire = strtol(fields[7], &cpp, 10)) == 0 && *cpp) {
/* return 0; */
return NULL;
} else if (fields[7][0] == '\0')
spwd.sp_expire = -1;
/*
* This field is reserved for future use. But it isn't supposed
* to have anything other than a valid integer in it.
*/
if ((spwd.sp_flag = strtol(fields[8], &cpp, 10)) == 0 && *cpp) {
/* return 0; */
return NULL;
} else if (fields[8][0] == '\0')
spwd.sp_flag = -1;
return (&spwd);
}
/* fgetspent - get an entry from an /etc/shadow formatted stream */
struct spwd *fgetspent(FILE *fp)
{
char buf[BUFSIZ];
char *cp;
if (!fp)
/* return (0); */
return NULL;
if (fgets(buf, sizeof buf, fp) != (char *) 0) {
if ((cp = strchr(buf, '\n')))
*cp = '\0';
return (sgetspent(buf));
}
/* return 0; */
return NULL;
}
/*
* putspent - put a (struct spwd *) into the (FILE *) you provide.
*
* this was described in shadow_.h but not implemented, so here
* I go. -beppu
*
*/
int putspent(const struct spwd *sp, FILE *fp)
{
int ret;
/* seek to end */
ret = fseek(fp, 0, SEEK_END);
if (ret == -1) {
/* return -1; */
return 1;
}
/* powered by fprintf */
fprintf(fp, "%s:%s:%ld:%ld:%ld:%ld:%ld:%ld:%s\n", sp->sp_namp, /* login name */
sp->sp_pwdp, /* encrypted password */
sp->sp_lstchg, /* date of last change */
sp->sp_min, /* minimum number of days between changes */
sp->sp_max, /* maximum number of days between changes */
sp->sp_warn, /* number of days of warning before password expires */
sp->sp_inact, /* number of days after password expires until
the account becomes unusable */
sp->sp_expire, /* days since 1/1/70 until account expires */
"");
return 0;
}