Replace the old and somewhat buggy pwd_grp stuff with the shiny

new stuff mjn3 wrote for uClibc

17 files changed, 1140 insertions, 1237 deletions

diff --git a/libpwdgrp/Makefile.in b/libpwdgrp/Makefile.in
index cb7cbde..a798202 100644
--- a/libpwdgrp/Makefile.in
+++ b/libpwdgrp/Makefile.in
@@ -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 $@
+
 
diff --git a/libpwdgrp/__getgrent.c b/libpwdgrp/__getgrent.c
deleted file mode 100644
index 3b54b9e..0000000
--- a/libpwdgrp/__getgrent.c
+++ /dev/null
@@ -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;
-}
diff --git a/libpwdgrp/__getpwent.c b/libpwdgrp/__getpwent.c
deleted file mode 100644
index 09ed631..0000000
--- a/libpwdgrp/__getpwent.c
+++ /dev/null
@@ -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;
-}
diff --git a/libpwdgrp/fgetgrent.c b/libpwdgrp/fgetgrent.c
deleted file mode 100644
index 77c2884..0000000
--- a/libpwdgrp/fgetgrent.c
+++ /dev/null
@@ -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));
-}
diff --git a/libpwdgrp/fgetpwent.c b/libpwdgrp/fgetpwent.c
deleted file mode 100644
index 74bf922..0000000
--- a/libpwdgrp/fgetpwent.c
+++ /dev/null
@@ -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));
-}
diff --git a/libpwdgrp/getgrgid.c b/libpwdgrp/getgrgid.c
deleted file mode 100644
index 4502e2b..0000000
--- a/libpwdgrp/getgrgid.c
+++ /dev/null
@@ -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;
-}
diff --git a/libpwdgrp/getgrnam.c b/libpwdgrp/getgrnam.c
deleted file mode 100644
index 766b7bc..0000000
--- a/libpwdgrp/getgrnam.c
+++ /dev/null
@@ -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;
-}
diff --git a/libpwdgrp/getpw.c b/libpwdgrp/getpw.c
deleted file mode 100644
index 8494a6a..0000000
--- a/libpwdgrp/getpw.c
+++ /dev/null
@@ -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;
-}
diff --git a/libpwdgrp/getpwnam.c b/libpwdgrp/getpwnam.c
deleted file mode 100644
index f4caeea..0000000
--- a/libpwdgrp/getpwnam.c
+++ /dev/null
@@ -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;
-}
diff --git a/libpwdgrp/getpwuid.c b/libpwdgrp/getpwuid.c
deleted file mode 100644
index 7fa7ed9..0000000
--- a/libpwdgrp/getpwuid.c
+++ /dev/null
@@ -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;
-}
diff --git a/libpwdgrp/grent.c b/libpwdgrp/grent.c
deleted file mode 100644
index 753026c..0000000
--- a/libpwdgrp/grent.c
+++ /dev/null
@@ -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);
-}
diff --git a/libpwdgrp/initgroups.c b/libpwdgrp/initgroups.c
deleted file mode 100644
index 6577ec6..0000000
--- a/libpwdgrp/initgroups.c
+++ /dev/null
@@ -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);
-}
diff --git a/libpwdgrp/putpwent.c b/libpwdgrp/putpwent.c
deleted file mode 100644
index 0710ff5..0000000
--- a/libpwdgrp/putpwent.c
+++ /dev/null
@@ -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;
-}
diff --git a/libpwdgrp/pwd_grp.c b/libpwdgrp/pwd_grp.c
new file mode 100644
index 0000000..9412fae
--- /dev/null
+++ b/libpwdgrp/pwd_grp.c
@@ -0,0 +1,1116 @@
+/*  Copyright (C) 2003     Manuel Novoa III
+ *
+ *  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.
+ */
+
+/*  Nov 6, 2003  Initial version.
+ *
+ *  NOTE: This implementation is quite strict about requiring all
+ *    field seperators.  It also does not allow leading whitespace
+ *    except when processing the numeric fields.  glibc is more
+ *    lenient.  See the various glibc difference comments below.
+ *
+ *  TODO:
+ *    Move to dynamic allocation of (currently staticly allocated)
+ *      buffers; especially for the group-related functions since
+ *      large group member lists will cause error returns.
+ *
+ */
+
+#include <features.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <stddef.h>
+#include <errno.h>
+#include <assert.h>
+#include <ctype.h>
+#include "busybox.h"
+#include "pwd_.h"
+#include "grp_.h"
+#include "shadow_.h"
+
+#ifndef _PATH_SHADOW
+#define	_PATH_SHADOW	"/etc/shadow"
+#endif
+#ifndef _PATH_PASSWD
+#define	_PATH_PASSWD	"/etc/passwd"
+#endif
+#ifndef _PATH_GROUP
+#define	_PATH_GROUP	"/etc/group"
+#endif
+
+/**********************************************************************/
+/* Sizes for staticly allocated buffers. */
+
+/* If you change these values, also change _SC_GETPW_R_SIZE_MAX and
+ * _SC_GETGR_R_SIZE_MAX in libc/unistd/sysconf.c to match */
+#define PWD_BUFFER_SIZE 256
+#define GRP_BUFFER_SIZE 256
+
+/**********************************************************************/
+/* Prototypes for internal functions. */
+
+extern int __parsepwent(void *pw, char *line);
+extern int __parsegrent(void *gr, char *line);
+extern int __parsespent(void *sp, char *line);
+
+extern int __pgsreader(int (*__parserfunc)(void *d, char *line), void *data,
+					   char *__restrict line_buff, size_t buflen, FILE *f);
+
+/**********************************************************************/
+/* For the various fget??ent_r funcs, return
+ *
+ *  0: success
+ *  ENOENT: end-of-file encountered
+ *  ERANGE: buflen too small
+ *  other error values possible. See __pgsreader.
+ *
+ * Also, *result == resultbuf on success and NULL on failure.
+ *
+ * NOTE: glibc difference - For the ENOENT case, glibc also sets errno.
+ *   We do not, as it really isn't an error if we reach the end-of-file.
+ *   Doing so is analogous to having fgetc() set errno on EOF.
+ */
+/**********************************************************************/
+#ifdef L_fgetpwent_r
+
+int fgetpwent_r(FILE *__restrict stream, struct passwd *__restrict resultbuf,
+				char *__restrict buffer, size_t buflen,
+				struct passwd **__restrict result)
+{
+	int rv;
+
+	*result = NULL;
+
+	if (!(rv = __pgsreader(__parsepwent, resultbuf, buffer, buflen, stream))) {
+		*result = resultbuf;
+	}
+
+	return rv;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_fgetgrent_r
+
+int fgetgrent_r(FILE *__restrict stream, struct group *__restrict resultbuf,
+				char *__restrict buffer, size_t buflen,
+				struct group **__restrict result)
+{
+	int rv;
+
+	*result = NULL;
+
+	if (!(rv = __pgsreader(__parsegrent, resultbuf, buffer, buflen, stream))) {
+		*result = resultbuf;
+	}
+
+	return rv;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_fgetspent_r
+
+int fgetspent_r(FILE *__restrict stream, struct spwd *__restrict resultbuf,
+				char *__restrict buffer, size_t buflen,
+				struct spwd **__restrict result)
+{
+	int rv;
+
+	*result = NULL;
+
+	if (!(rv = __pgsreader(__parsespent, resultbuf, buffer, buflen, stream))) {
+		*result = resultbuf;
+	}
+
+	return rv;
+}
+
+#endif
+/**********************************************************************/
+/* For the various fget??ent funcs, return NULL on failure and a
+ * pointer to the appropriate struct (staticly allocated) on success.
+ */
+/**********************************************************************/
+#ifdef L_fgetpwent
+
+struct passwd *fgetpwent(FILE *stream)
+{
+	static char buffer[PWD_BUFFER_SIZE];
+	static struct passwd resultbuf;
+	struct passwd *result;
+
+	fgetpwent_r(stream, &resultbuf, buffer, sizeof(buffer), &result);
+	return result;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_fgetgrent
+
+struct group *fgetgrent(FILE *stream)
+{
+	static char buffer[GRP_BUFFER_SIZE];
+	static struct group resultbuf;
+	struct group *result;
+
+	fgetgrent_r(stream, &resultbuf, buffer, sizeof(buffer), &result);
+	return result;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_fgetspent
+
+extern int fgetspent_r(FILE *__restrict stream, struct spwd *__restrict resultbuf,
+				char *__restrict buffer, size_t buflen,
+				struct spwd **__restrict result);
+struct spwd *fgetspent(FILE *stream)
+{
+	static char buffer[PWD_BUFFER_SIZE];
+	static struct spwd resultbuf;
+	struct spwd *result;
+
+	fgetspent_r(stream, &resultbuf, buffer, sizeof(buffer), &result);
+	return result;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_sgetspent_r
+
+int sgetspent_r(const char *string, struct spwd *result_buf,
+				char *buffer, size_t buflen, struct spwd **result)
+{
+	int rv = ERANGE;
+
+	*result = NULL;
+
+	if (buflen < PWD_BUFFER_SIZE) {
+	DO_ERANGE:
+		errno=rv;
+		goto DONE;
+	}
+
+	if (string != buffer) {
+		if (strlen(string) >= buflen) {
+			goto DO_ERANGE;
+		}
+		strcpy(buffer, string);
+	}
+
+	if (!(rv = __parsespent(result_buf, buffer))) {
+		*result = result_buf;
+	}
+
+ DONE:
+	return rv;
+}
+
+#endif
+/**********************************************************************/
+
+#ifdef GETXXKEY_R_FUNC
+#error GETXXKEY_R_FUNC is already defined!
+#endif
+
+#ifdef L_getpwnam_r
+#define GETXXKEY_R_FUNC			getpwnam_r
+#define GETXXKEY_R_PARSER   	__parsepwent
+#define GETXXKEY_R_ENTTYPE		struct passwd
+#define GETXXKEY_R_TEST(ENT)	(!strcmp((ENT)->pw_name, key))
+#define DO_GETXXKEY_R_KEYTYPE	const char *__restrict
+#define DO_GETXXKEY_R_PATHNAME  _PATH_PASSWD
+#endif
+
+#ifdef L_getgrnam_r
+#define GETXXKEY_R_FUNC			getgrnam_r
+#define GETXXKEY_R_PARSER   	__parsegrent
+#define GETXXKEY_R_ENTTYPE		struct group
+#define GETXXKEY_R_TEST(ENT)	(!strcmp((ENT)->gr_name, key))
+#define DO_GETXXKEY_R_KEYTYPE	const char *__restrict
+#define DO_GETXXKEY_R_PATHNAME  _PATH_GROUP
+#endif
+
+#ifdef L_getspnam_r
+#define GETXXKEY_R_FUNC			getspnam_r
+#define GETXXKEY_R_PARSER   	__parsespent
+#define GETXXKEY_R_ENTTYPE		struct spwd
+#define GETXXKEY_R_TEST(ENT)	(!strcmp((ENT)->sp_namp, key))
+#define DO_GETXXKEY_R_KEYTYPE	const char *__restrict
+#define DO_GETXXKEY_R_PATHNAME  _PATH_SHADOW
+#endif
+
+#ifdef L_getpwuid_r
+#define GETXXKEY_R_FUNC			getpwuid_r
+#define GETXXKEY_R_PARSER   	__parsepwent
+#define GETXXKEY_R_ENTTYPE		struct passwd
+#define GETXXKEY_R_TEST(ENT)	((ENT)->pw_uid == key)
+#define DO_GETXXKEY_R_KEYTYPE	uid_t
+#define DO_GETXXKEY_R_PATHNAME  _PATH_PASSWD
+#endif
+
+#ifdef L_getgrgid_r
+#define GETXXKEY_R_FUNC			getgrgid_r
+#define GETXXKEY_R_PARSER   	__parsegrent
+#define GETXXKEY_R_ENTTYPE		struct group
+#define GETXXKEY_R_TEST(ENT)	((ENT)->gr_gid == key)
+#define DO_GETXXKEY_R_KEYTYPE	gid_t
+#define DO_GETXXKEY_R_PATHNAME  _PATH_GROUP
+#endif
+
+/**********************************************************************/
+#ifdef GETXXKEY_R_FUNC
+
+int GETXXKEY_R_FUNC(DO_GETXXKEY_R_KEYTYPE key,
+					GETXXKEY_R_ENTTYPE *__restrict resultbuf,
+					char *__restrict buffer, size_t buflen,
+					GETXXKEY_R_ENTTYPE **__restrict result)
+{
+	FILE *stream;
+	int rv;
+
+	*result = NULL;
+
+	if (!(stream = fopen(DO_GETXXKEY_R_PATHNAME, "r"))) {
+		rv = errno;
+	} else {
+		do {
+			if (!(rv = __pgsreader(GETXXKEY_R_PARSER, resultbuf,
+								   buffer, buflen, stream))
+				) {
+				if (GETXXKEY_R_TEST(resultbuf)) { /* Found key? */
+					*result = resultbuf;
+					break;
+				}
+			} else {
+				if (rv == ENOENT) {	/* end-of-file encountered. */
+					rv = 0;
+				}
+				break;
+			}
+		} while (1);
+		fclose(stream);
+	}
+
+	return rv;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_getpwuid
+
+struct passwd *getpwuid(uid_t uid)
+{
+	static char buffer[PWD_BUFFER_SIZE];
+	static struct passwd resultbuf;
+	struct passwd *result;
+
+	getpwuid_r(uid, &resultbuf, buffer, sizeof(buffer), &result);
+	return result;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_getgrgid
+
+struct group *getgrgid(gid_t gid)
+{
+	static char buffer[GRP_BUFFER_SIZE];
+	static struct group resultbuf;
+	struct group *result;
+
+	getgrgid_r(gid, &resultbuf, buffer, sizeof(buffer), &result);
+	return result;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_getspuid_r
+
+/* This function is non-standard and is currently not built.  It seems
+ * to have been created as a reentrant version of the non-standard
+ * functions getspuid.  Why getspuid was added, I do not know. */
+
+int getspuid_r(uid_t uid, struct spwd *__restrict resultbuf,
+		       char *__restrict buffer, size_t buflen,
+		       struct spwd **__restrict result)
+{
+	int rv;
+	struct passwd *pp;
+	struct passwd password;
+	char pwd_buff[PWD_BUFFER_SIZE];
+
+	*result = NULL;
+	if (!(rv = getpwuid_r(uid, &password, pwd_buff, sizeof(pwd_buff), &pp))) {
+		rv = getspnam_r(password.pw_name, resultbuf, buffer, buflen, result);
+	}
+
+	return rv;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_getspuid
+
+/* This function is non-standard and is currently not built.
+ * Why it was added, I do not know. */
+
+struct spwd *getspuid(uid_t uid)
+{
+	static char buffer[PWD_BUFFER_SIZE];
+	static struct spwd resultbuf;
+	struct spwd *result;
+
+	getspuid_r(uid, &resultbuf, buffer, sizeof(buffer), &result);
+	return result;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_getpwnam
+
+struct passwd *getpwnam(const char *name)
+{
+	static char buffer[PWD_BUFFER_SIZE];
+	static struct passwd resultbuf;
+	struct passwd *result;
+
+	getpwnam_r(name, &resultbuf, buffer, sizeof(buffer), &result);
+	return result;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_getgrnam
+
+struct group *getgrnam(const char *name)
+{
+	static char buffer[GRP_BUFFER_SIZE];
+	static struct group resultbuf;
+	struct group *result;
+
+	getgrnam_r(name, &resultbuf, buffer, sizeof(buffer), &result);
+	return result;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_getspnam
+
+struct spwd *getspnam(const char *name)
+{
+	static char buffer[PWD_BUFFER_SIZE];
+	static struct spwd resultbuf;
+	struct spwd *result;
+
+	getspnam_r(name, &resultbuf, buffer, sizeof(buffer), &result);
+	return result;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_getpw
+
+int getpw(uid_t uid, char *buf)
+{
+	struct passwd resultbuf;
+	struct passwd *result;
+	char buffer[PWD_BUFFER_SIZE];
+
+	if (!buf) {
+		errno=EINVAL;
+	} else if (!getpwuid_r(uid, &resultbuf, buffer, sizeof(buffer), &result)) {
+		if (sprintf(buf, "%s:%s:%lu:%lu:%s:%s:%s\n",
+					resultbuf.pw_name, resultbuf.pw_passwd,
+					(unsigned long)(resultbuf.pw_uid),
+					(unsigned long)(resultbuf.pw_gid),
+					resultbuf.pw_gecos, resultbuf.pw_dir,
+					resultbuf.pw_shell) >= 0
+			) {
+			return 0;
+		}
+	}
+
+	return -1;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_getpwent_r
+
+static FILE *pwf /*= NULL*/;
+void setpwent(void)
+{
+	if (pwf) {
+		rewind(pwf);
+	}
+}
+
+void endpwent(void)
+{
+	if (pwf) {
+		fclose(pwf);
+		pwf = NULL;
+	}
+}
+
+
+int getpwent_r(struct passwd *__restrict resultbuf, 
+			   char *__restrict buffer, size_t buflen,
+			   struct passwd **__restrict result)
+{
+	int rv;
+
+	*result = NULL;				/* In case of error... */
+
+	if (!pwf) {
+		if (!(pwf = fopen(_PATH_PASSWD, "r"))) {
+			rv = errno;
+			goto ERR;
+		}
+	}
+
+	if (!(rv = __pgsreader(__parsepwent, resultbuf,
+						   buffer, buflen, pwf))) {
+		*result = resultbuf;
+	}
+
+ ERR:
+	return rv;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_getgrent_r
+
+static FILE *grf /*= NULL*/;
+void setgrent(void)
+{
+	if (grf) {
+		rewind(grf);
+	}
+}
+
+void endgrent(void)
+{
+	if (grf) {
+		fclose(grf);
+		grf = NULL;
+	}
+}
+
+int getgrent_r(struct group *__restrict resultbuf,
+			   char *__restrict buffer, size_t buflen,
+			   struct group **__restrict result)
+{
+	int rv;
+
+	*result = NULL;				/* In case of error... */
+
+	if (!grf) {
+		if (!(grf = fopen(_PATH_GROUP, "r"))) {
+			rv = errno;
+			goto ERR;
+		}
+	}
+
+	if (!(rv = __pgsreader(__parsegrent, resultbuf,
+						   buffer, buflen, grf))) {
+		*result = resultbuf;
+	}
+
+ ERR:
+	return rv;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_getspent_r
+
+static FILE *spf /*= NULL*/;
+void setspent(void)
+{
+	if (spf) {
+		rewind(spf);
+	}
+}
+
+void endspent(void)
+{
+	if (spf) {
+		fclose(spf);
+		spf = NULL;
+	}
+}
+
+int getspent_r(struct spwd *resultbuf, char *buffer, 
+			   size_t buflen, struct spwd **result)
+{
+	int rv;
+
+	*result = NULL;				/* In case of error... */
+
+	if (!spf) {
+		if (!(spf = fopen(_PATH_SHADOW, "r"))) {
+			rv = errno;
+			goto ERR;
+		}
+	}
+
+	if (!(rv = __pgsreader(__parsespent, resultbuf,
+						   buffer, buflen, spf))) {
+		*result = resultbuf;
+	}
+
+ ERR:
+	return rv;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_getpwent
+
+struct passwd *getpwent(void)
+{
+	static char line_buff[PWD_BUFFER_SIZE];
+	static struct passwd pwd;
+	struct passwd *result;
+
+	getpwent_r(&pwd, line_buff, sizeof(line_buff), &result);
+	return result;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_getgrent
+
+struct group *getgrent(void)
+{
+	static char line_buff[GRP_BUFFER_SIZE];
+	static struct group gr;
+	struct group *result;
+
+	getgrent_r(&gr, line_buff, sizeof(line_buff), &result);
+	return result;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_getspent
+
+struct spwd *getspent(void)
+{
+	static char line_buff[PWD_BUFFER_SIZE];
+	static struct spwd spwd;
+	struct spwd *result;
+
+	getspent_r(&spwd, line_buff, sizeof(line_buff), &result);
+	return result;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_sgetspent
+
+struct spwd *sgetspent(const char *string)
+{
+	static char line_buff[PWD_BUFFER_SIZE];
+	static struct spwd spwd;
+	struct spwd *result;
+
+	sgetspent_r(string, &spwd, line_buff, sizeof(line_buff), &result);
+	return result;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_initgroups
+
+int initgroups(const char *user, gid_t gid)
+{
+	FILE *grf;
+	gid_t *group_list;
+	int num_groups, rv;
+	char **m;
+	struct group group;
+	char buff[PWD_BUFFER_SIZE];
+
+	rv = -1;
+
+	/* We alloc space for 8 gids at a time. */
+	if (((group_list = (gid_t *) malloc(8*sizeof(gid_t *))) != NULL)
+		&& ((grf = fopen(_PATH_GROUP, "r")) != NULL)
+		) {
+
+		*group_list = gid;
+		num_groups = 1;
+
+		while (!__pgsreader(__parsegrent, &group, buff, sizeof(buff), grf)) {
+			assert(group.gr_mem); /* Must have at least a NULL terminator. */
+			if (group.gr_gid != gid) {
+				for (m=group.gr_mem ; *m ; m++) {
+					if (!strcmp(*m, user)) {
+						if (!(num_groups & 7)) {
+							gid_t *tmp = (gid_t *)
+								realloc(group_list,
+										(num_groups+8) * sizeof(gid_t *));
+							if (!tmp) {
+								rv = -1;
+								goto DO_CLOSE;
+							}
+							group_list = tmp;
+						}
+						group_list[num_groups++] = group.gr_gid;
+						break;
+					}
+				}
+			}
+		}
+
+		rv = setgroups(num_groups, group_list);
+	DO_CLOSE:
+		fclose(grf);
+	}
+
+	/* group_list will be NULL if initial malloc failed, which may trigger
+	 * warnings from various malloc debuggers. */
+	free(group_list);
+	return rv;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_putpwent
+
+int putpwent(const struct passwd *__restrict p, FILE *__restrict f)
+{
+	int rv = -1;
+
+	if (!p || !f) {
+		errno=EINVAL;
+	} else {
+		/* No extra thread locking is needed above what fprintf does. */
+		if (fprintf(f, "%s:%s:%lu:%lu:%s:%s:%s\n",
+					p->pw_name, p->pw_passwd,
+					(unsigned long)(p->pw_uid),
+					(unsigned long)(p->pw_gid),
+					p->pw_gecos, p->pw_dir, p->pw_shell) >= 0
+			) {
+			rv = 0;
+		}
+	}
+
+	return rv;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_putgrent
+
+int putgrent(const struct group *__restrict p, FILE *__restrict f)
+{
+	static const char format[] = ",%s";
+	char **m;
+	const char *fmt;
+	int rv = -1;
+
+	if (!p || !f) {				/* Sigh... glibc checks. */
+		errno=EINVAL;
+	} else {
+		if (fprintf(f, "%s:%s:%lu:",
+					p->gr_name, p->gr_passwd,
+					(unsigned long)(p->gr_gid)) >= 0
+			) {
+
+			fmt = format + 1;
+
+			assert(p->gr_mem);
+			m = p->gr_mem;
+
+			do {
+				if (!*m) {
+					if (fputc_unlocked('\n', f) >= 0) {
+						rv = 0;
+					}
+					break;
+				}
+				if (fprintf(f, fmt, *m) < 0) {
+					break;
+				}
+				++m;
+				fmt = format;
+			} while (1);
+
+		}
+
+	}
+
+	return rv;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_putspent
+
+static const unsigned char sp_off[] = {
+	offsetof(struct spwd, sp_lstchg),	/* 2 - not a char ptr */
+	offsetof(struct spwd, sp_min), 		/* 3 - not a char ptr */
+	offsetof(struct spwd, sp_max),		/* 4 - not a char ptr */
+	offsetof(struct spwd, sp_warn), 	/* 5 - not a char ptr */
+	offsetof(struct spwd, sp_inact), 	/* 6 - not a char ptr */
+	offsetof(struct spwd, sp_expire), 	/* 7 - not a char ptr */
+};
+
+int putspent(const struct spwd *p, FILE *stream)
+{
+	static const char ld_format[] = "%ld:";
+	const char *f;
+	long int x;
+	int i;
+	int rv = -1;
+
+	/* Unlike putpwent and putgrent, glibc does not check the args. */
+	if (fprintf(stream, "%s:%s:", p->sp_namp,
+				(p->sp_pwdp ? p->sp_pwdp : "")) < 0
+		) {
+		goto DO_UNLOCK;
+	}
+
+	for (i=0 ; i < sizeof(sp_off) ; i++) {
+		f = ld_format;
+		if ((x = *(const long int *)(((const char *) p) + sp_off[i])) == -1) {
+			f += 3;
+		}
+		if (fprintf(stream, f, x) < 0) {
+			goto DO_UNLOCK;
+		}
+	}
+
+	if ((p->sp_flag != ~0UL) && (fprintf(stream, "%lu", p->sp_flag) < 0)) {
+		goto DO_UNLOCK;
+	}
+
+	if (fputc_unlocked('\n', stream) > 0) {
+		rv = 0;
+	}
+
+DO_UNLOCK:
+	return rv;
+}
+
+#endif
+/**********************************************************************/
+/* Internal uClibc functions.                                         */
+/**********************************************************************/
+#ifdef L___parsepwent
+
+static const unsigned char pw_off[] = {
+	offsetof(struct passwd, pw_name), 	/* 0 */
+	offsetof(struct passwd, pw_passwd),	/* 1 */
+	offsetof(struct passwd, pw_uid),	/* 2 - not a char ptr */
+	offsetof(struct passwd, pw_gid), 	/* 3 - not a char ptr */
+	offsetof(struct passwd, pw_gecos),	/* 4 */
+	offsetof(struct passwd, pw_dir), 	/* 5 */
+	offsetof(struct passwd, pw_shell) 	/* 6 */
+};
+
+int __parsepwent(void *data, char *line)
+{
+	char *endptr;
+	char *p;
+	int i;
+
+	i = 0;
+	do {
+		p = ((char *) ((struct passwd *) data)) + pw_off[i];
+
+		if ((i & 6) ^ 2) { 	/* i!=2 and i!=3 */
+			*((char **) p) = line;
+			if (i==6) {
+				return 0;
+			}
+			/* NOTE: glibc difference - glibc allows omission of
+			 * ':' seperators after the gid field if all remaining
+			 * entries are empty.  We require all separators. */
+			if (!(line = strchr(line, ':'))) {
+				break;
+			}
+		} else {
+			unsigned long t = strtoul(line, &endptr, 10);
+			/* Make sure we had at least one digit, and that the
+			 * failing char is the next field seperator ':'.  See
+			 * glibc difference note above. */
+			/* TODO: Also check for leading whitespace? */
+			if ((endptr == line) || (*endptr != ':')) {
+				break;
+			}
+			line = endptr;
+			if (i & 1) {		/* i == 3 -- gid */
+				*((gid_t *) p) = t;
+			} else {			/* i == 2 -- uid */
+				*((uid_t *) p) = t;
+			}
+		}
+
+		*line++ = 0;
+		++i;
+	} while (1);
+
+	return -1;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L___parsegrent
+
+static const unsigned char gr_off[] = {
+	offsetof(struct group, gr_name), 	/* 0 */
+	offsetof(struct group, gr_passwd),	/* 1 */
+	offsetof(struct group, gr_gid)		/* 2 - not a char ptr */
+};
+
+int __parsegrent(void *data, char *line)
+{
+	char *endptr;
+	char *p;
+	int i;
+	char **members;
+	char *end_of_buf;
+
+	end_of_buf = ((struct group *) data)->gr_name; /* Evil hack! */
+	i = 0;
+	do {
+		p = ((char *) ((struct group *) data)) + gr_off[i];
+
+		if (i < 2) {
+			*((char **) p) = line;
+			if (!(line = strchr(line, ':'))) {
+				break;
+			}
+			*line++ = 0;
+			++i;
+		} else {
+			*((gid_t *) p) = strtoul(line, &endptr, 10);
+
+			/* NOTE: glibc difference - glibc allows omission of the
+			 * trailing colon when there is no member list.  We treat
+			 * this as an error. */
+
+			/* Make sure we had at least one digit, and that the
+			 * failing char is the next field seperator ':'.  See
+			 * glibc difference note above. */
+			if ((endptr == line) || (*endptr != ':')) {
+				break;
+			}
+
+			i = 1;				/* Count terminating NULL ptr. */
+			p = endptr;
+
+			if (p[1]) { /* We have a member list to process. */
+				/* Overwrite the last ':' with a ',' before counting.
+				 * This allows us to test for initial ',' and adds
+				 * one ',' so that the ',' count equals the member
+				 * count. */
+				*p = ',';
+				do {
+					/* NOTE: glibc difference - glibc allows and trims leading
+					 * (but not trailing) space.  We treat this as an error. */
+					/* NOTE: glibc difference - glibc allows consecutive and
+					 * trailing commas, and ignores "empty string" users.  We
+					 * treat this as an error. */
+					if (*p == ',') {
+						++i;
+						*p = 0;	/* nul-terminate each member string. */
+						if (!*++p || (*p == ',') || isspace(*p)) {
+							goto ERR;
+						}
+					}
+				} while (*++p);
+			}
+
+			/* Now align (p+1), rounding up. */
+			/* Assumes sizeof(char **) is a power of 2. */
+			members = (char **)( (((intptr_t) p) + sizeof(char **))
+								 & ~((intptr_t)(sizeof(char **) - 1)) );
+
+			if (((char *)(members + i)) > end_of_buf) {	/* No space. */
+				break;
+			}
+
+			((struct group *) data)->gr_mem = members;
+
+			if (--i) {
+				p = endptr;	/* Pointing to char prior to first member. */
+				do {
+					*members++ = ++p;
+					if (!--i) break;
+					while (*++p) {}
+				} while (1);
+			}				
+			*members = NULL;
+
+			return 0;
+		}
+	} while (1);
+
+ ERR:
+	return -1;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L___parsespent
+
+static const unsigned char sp_off[] = {
+	offsetof(struct spwd, sp_namp),		/* 0 */
+	offsetof(struct spwd, sp_pwdp),		/* 1 */
+	offsetof(struct spwd, sp_lstchg),	/* 2 - not a char ptr */
+	offsetof(struct spwd, sp_min), 		/* 3 - not a char ptr */
+	offsetof(struct spwd, sp_max),		/* 4 - not a char ptr */
+	offsetof(struct spwd, sp_warn), 	/* 5 - not a char ptr */
+	offsetof(struct spwd, sp_inact), 	/* 6 - not a char ptr */
+	offsetof(struct spwd, sp_expire), 	/* 7 - not a char ptr */
+	offsetof(struct spwd, sp_flag) 		/* 8 - not a char ptr */
+};
+
+int __parsespent(void *data, char * line)
+{
+	char *endptr;
+	char *p;
+	int i;
+
+	i = 0;
+	do {
+		p = ((char *) ((struct spwd *) data)) + sp_off[i];
+		if (i < 2) {
+			*((char **) p) = line;
+			if (!(line = strchr(line, ':'))) {
+				break;
+			}
+		} else {
+#if 0
+			if (i==5) {			/* Support for old format. */
+				while (isspace(*line)) ++line; /* glibc eats space here. */
+				if (!*line) {
+					((struct spwd *) data)->sp_warn = -1;
+					((struct spwd *) data)->sp_inact = -1;
+					((struct spwd *) data)->sp_expire = -1;
+					((struct spwd *) data)->sp_flag = ~0UL;
+					return 0;
+				}
+			}
+#endif
+
+			*((long *) p) = (long) strtoul(line, &endptr, 10);
+
+			if (endptr == line) {
+				*((long *) p) = ((i != 8) ? -1L : ((long)(~0UL)));
+			}
+
+			line = endptr;
+
+			if (i == 8) {
+				if (!*endptr) {
+					return 0;
+				}
+				break;
+			}
+
+			if (*endptr != ':') {
+				break;
+			}
+
+		}
+
+		*line++ = 0;
+		++i;
+	} while (1);
+
+	return EINVAL;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L___pgsreader
+
+/* Reads until if EOF, or until if finds a line which fits in the buffer
+ * and for which the parser function succeeds.
+ *
+ * Returns 0 on success and ENOENT for end-of-file (glibc concession).
+ */
+
+int __pgsreader(int (*__parserfunc)(void *d, char *line), void *data,
+				char *__restrict line_buff, size_t buflen, FILE *f)
+{
+	int line_len;
+	int skip;
+	int rv = ERANGE;
+
+	if (buflen < PWD_BUFFER_SIZE) {
+		errno=rv;
+	} else {
+		skip = 0;
+		do {
+			if (!fgets_unlocked(line_buff, buflen, f)) {
+				if (feof_unlocked(f)) {
+					rv = ENOENT;
+				}
+				break;
+			}
+
+			line_len = strlen(line_buff) - 1; /* strlen() must be > 0. */
+			if (line_buff[line_len] == '\n') {
+				line_buff[line_len] = 0;
+			} else if (line_len + 2 == buflen) { /* line too long */
+				++skip;
+				continue;
+			}
+
+			if (skip) {
+				--skip;
+				continue;
+			}
+
+			/* NOTE: glibc difference - glibc strips leading whitespace from
+			 * records.  We do not allow leading whitespace. */
+
+			/* Skip empty lines, comment lines, and lines with leading
+			 * whitespace. */
+			if (*line_buff && (*line_buff != '#') && !isspace(*line_buff)) {
+				if (__parserfunc == __parsegrent) {	/* Do evil group hack. */
+					/* The group entry parsing function needs to know where
+					 * the end of the buffer is so that it can construct the
+					 * group member ptr table. */
+					((struct group *) data)->gr_name = line_buff + buflen;
+				}
+
+				if (!__parserfunc(data, line_buff)) {
+					rv = 0;
+					break;
+				}
+			}
+		} while (1);
+
+	}
+
+	return rv;
+}
+
+#endif
+/**********************************************************************/
diff --git a/libpwdgrp/pwent.c b/libpwdgrp/pwent.c
deleted file mode 100644
index 1cdb2d4..0000000
--- a/libpwdgrp/pwent.c
+++ /dev/null
@@ -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;
-}
diff --git a/libpwdgrp/setgroups.c b/libpwdgrp/setgroups.c
deleted file mode 100644
index 15a16f4..0000000
--- a/libpwdgrp/setgroups.c
+++ /dev/null
@@ -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));
-}
-
-
diff --git a/libpwdgrp/shadow.c b/libpwdgrp/shadow.c
deleted file mode 100644
index b3a4901..0000000
--- a/libpwdgrp/shadow.c
+++ /dev/null
@@ -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;
-}
-
-