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Replace the old and somewhat buggy pwd_grp stuff with the shiny

Browse source 
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
Download patch file Download diff file Expand all files Collapse all files

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
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@ -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
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File diff suppressed because it is too large Load diff

58
libpwdgrp/pwent.c
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@ -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
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@ -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
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@ -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;
}