aboutsummaryrefslogtreecommitdiff
path: root/libpwdgrp
diff options
context:
space:
mode:
Diffstat (limited to 'libpwdgrp')
-rw-r--r--libpwdgrp/Makefile.in31
-rw-r--r--libpwdgrp/__getgrent.c203
-rw-r--r--libpwdgrp/__getpwent.c115
-rw-r--r--libpwdgrp/fgetgrent.c35
-rw-r--r--libpwdgrp/fgetpwent.c35
-rw-r--r--libpwdgrp/getgrgid.c44
-rw-r--r--libpwdgrp/getgrnam.c50
-rw-r--r--libpwdgrp/getpw.c47
-rw-r--r--libpwdgrp/getpwnam.c51
-rw-r--r--libpwdgrp/getpwuid.c44
-rw-r--r--libpwdgrp/grent.c54
-rw-r--r--libpwdgrp/initgroups.c115
-rw-r--r--libpwdgrp/putpwent.c39
-rw-r--r--libpwdgrp/pwd_grp.c1116
-rw-r--r--libpwdgrp/pwent.c58
-rw-r--r--libpwdgrp/setgroups.c40
-rw-r--r--libpwdgrp/shadow.c300
17 files changed, 1140 insertions, 1237 deletions
diff --git a/libpwdgrp/Makefile.in b/libpwdgrp/Makefile.in
index cb7cbde76..a79820252 100644
--- a/libpwdgrp/Makefile.in
+++ b/libpwdgrp/Makefile.in
@@ -22,14 +22,31 @@ ifndef $(LIBPWDGRP_DIR)
22LIBPWDGRP_DIR:=$(TOPDIR)libpwdgrp/ 22LIBPWDGRP_DIR:=$(TOPDIR)libpwdgrp/
23endif 23endif
24 24
25LIBPWDGRP-y:= 25
26LIBPWDGRP-$(CONFIG_USE_BB_PWD_GRP) += __getgrent.o __getgrent.o __getpwent.o\ 26LIBPWDGRP_MSRC0:=$(LIBPWDGRP_DIR)pwd_grp.c
27 fgetgrent.o fgetpwent.o getgrgid.o getgrnam.o getpw.o getpwnam.o \ 27LIBPWDGRP_MOBJ0-$(CONFIG_USE_BB_PWD_GRP):= fgetpwent_r.o fgetgrent_r.o \
28 getpwuid.o grent.o initgroups.o putpwent.o pwent.o setgroups.o 28 fgetpwent.o fgetgrent.o getpwnam_r.o getgrnam_r.o getpwuid_r.o \
29LIBPWDGRP-$(CONFIG_USE_BB_SHADOW) += shadow.o 29 getgrgid_r.o getpwuid.o getgrgid.o getpwnam.o getgrnam.o getpw.o \
30 getpwent_r.o getgrent_r.o getpwent.o getgrent.o \
31 initgroups.o putpwent.o putgrent.o
32LIBPWDGRP_MOBJS0=$(patsubst %,$(LIBPWDGRP_DIR)%, $(LIBPWDGRP_MOBJ0-y))
33
34LIBPWDGRP_MSRC1:=$(LIBPWDGRP_DIR)pwd_grp.c
35LIBPWDGRP_MOBJ1-$(CONFIG_USE_BB_PWD_GRP):= __parsepwent.o __parsegrent.o \
36 __pgsreader.o fgetspent_r.o fgetspent.o sgetspent_r.o getspnam_r.o \
37 getspnam.o getspent_r.o getspent.o sgetspent.o \
38 putspent.o __parsespent.o # getspuid_r.o getspuid.o
39LIBPWDGRP_MOBJS1=$(patsubst %,$(LIBPWDGRP_DIR)%, $(LIBPWDGRP_MOBJ1-y))
30 40
31libraries-y+=$(LIBPWDGRP_DIR)$(LIBPWDGRP_AR) 41libraries-y+=$(LIBPWDGRP_DIR)$(LIBPWDGRP_AR)
32 42
33$(LIBPWDGRP_DIR)$(LIBPWDGRP_AR): $(patsubst %,$(LIBPWDGRP_DIR)%, $(LIBPWDGRP-y)) 43$(LIBPWDGRP_DIR)$(LIBPWDGRP_AR): $(LIBPWDGRP_MOBJS0) $(LIBPWDGRP_MOBJS1)
34 $(AR) -ro $@ $(patsubst %,$(LIBPWDGRP_DIR)%, $(LIBPWDGRP-y)) 44 $(AR) -ro $@ $(LIBPWDGRP_MOBJS0) $(LIBPWDGRP_MOBJS1)
45
46$(LIBPWDGRP_MOBJS0): $(LIBPWDGRP_MSRC0)
47 $(CC) $(CFLAGS) $(EXTRA_CFLAGS) -DL_$(notdir $*) -c $< -o $@
48
49$(LIBPWDGRP_MOBJS1): $(LIBPWDGRP_MSRC1)
50 $(CC) $(CFLAGS) $(EXTRA_CFLAGS) -DL_$(notdir $*) -c $< -o $@
51
35 52
diff --git a/libpwdgrp/__getgrent.c b/libpwdgrp/__getgrent.c
deleted file mode 100644
index 3b54b9eec..000000000
--- a/libpwdgrp/__getgrent.c
+++ /dev/null
@@ -1,203 +0,0 @@
1/*
2 * __getgrent.c - This file is part of the libc-8086/grp package for ELKS,
3 * Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the Free
17 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 *
19 */
20
21#include <unistd.h>
22#include <stdlib.h>
23#include <string.h>
24
25#include "busybox.h"
26#include "grp_.h"
27
28/*
29 * Define GR_SCALE_DYNAMIC if you want grp to dynamically scale its read buffer
30 * so that lines of any length can be used. On very very small systems,
31 * you may want to leave this undefined because it will make the grp functions
32 * somewhat larger (because of the inclusion of malloc and the code necessary).
33 * On larger systems, you will want to define this, because grp will _not_
34 * deal with long lines gracefully (they will be skipped).
35 */
36#undef GR_SCALE_DYNAMIC
37
38#ifndef GR_SCALE_DYNAMIC
39/*
40 * If scaling is not dynamic, the buffers will be statically allocated, and
41 * maximums must be chosen. GR_MAX_LINE_LEN is the maximum number of
42 * characters per line in the group file. GR_MAX_MEMBERS is the maximum
43 * number of members of any given group.
44 */
45#define GR_MAX_LINE_LEN 128
46/* GR_MAX_MEMBERS = (GR_MAX_LINE_LEN-(24+3+6))/9 */
47#define GR_MAX_MEMBERS 11
48
49#endif /* !GR_SCALE_DYNAMIC */
50
51
52/*
53 * Define GR_DYNAMIC_GROUP_LIST to make initgroups() dynamically allocate
54 * space for it's GID array before calling setgroups(). This is probably
55 * unnecessary scalage, so it's undefined by default.
56 */
57#undef GR_DYNAMIC_GROUP_LIST
58
59#ifndef GR_DYNAMIC_GROUP_LIST
60/*
61 * GR_MAX_GROUPS is the size of the static array initgroups() uses for
62 * its static GID array if GR_DYNAMIC_GROUP_LIST isn't defined.
63 */
64#define GR_MAX_GROUPS 64
65
66#endif /* !GR_DYNAMIC_GROUP_LIST */
67
68
69/*
70 * This is the core group-file read function. It behaves exactly like
71 * getgrent() except that it is passed a file descriptor. getgrent()
72 * is just a wrapper for this function.
73 */
74struct group *bb_getgrent(int grp_fd)
75{
76#ifndef GR_SCALE_DYNAMIC
77 static char line_buff[GR_MAX_LINE_LEN];
78 static char *members[GR_MAX_MEMBERS];
79#else
80 static char *line_buff = NULL;
81 static char **members = NULL;
82 short line_index;
83 short buff_size;
84#endif
85 static struct group group;
86 register char *ptr;
87 char *field_begin;
88 short member_num;
89 char *endptr;
90 int line_len;
91
92
93 /* We use the restart label to handle malformatted lines */
94 restart:
95#ifdef GR_SCALE_DYNAMIC
96 line_index = 0;
97 buff_size = 256;
98#endif
99
100#ifndef GR_SCALE_DYNAMIC
101 /* Read the line into the static buffer */
102 if ((line_len = read(grp_fd, line_buff, GR_MAX_LINE_LEN)) <= 0)
103 return NULL;
104 field_begin = strchr(line_buff, '\n');
105 if (field_begin != NULL)
106 lseek(grp_fd, (long) (1 + field_begin - (line_buff + line_len)),
107 SEEK_CUR);
108 else { /* The line is too long - skip it :-\ */
109
110 do {
111 if ((line_len = read(grp_fd, line_buff, GR_MAX_LINE_LEN)) <= 0)
112 return NULL;
113 } while (!(field_begin = strchr(line_buff, '\n')));
114 lseek(grp_fd, (long) ((field_begin - line_buff) - line_len + 1),
115 SEEK_CUR);
116 goto restart;
117 }
118 if (*line_buff == '#' || *line_buff == ' ' || *line_buff == '\n' ||
119 *line_buff == '\t')
120 goto restart;
121 *field_begin = '\0';
122
123#else /* !GR_SCALE_DYNAMIC */
124 line_buff = realloc(line_buff, buff_size);
125 while (1) {
126 if ((line_len = read(grp_fd, line_buff + line_index,
127 buff_size - line_index)) <= 0)
128 return NULL;
129 field_begin = strchr(line_buff, '\n');
130 if (field_begin != NULL) {
131 lseek(grp_fd,
132 (long) (1 + field_begin -
133 (line_len + line_index + line_buff)), SEEK_CUR);
134 *field_begin = '\0';
135 if (*line_buff == '#' || *line_buff == ' '
136 || *line_buff == '\n' || *line_buff == '\t')
137 goto restart;
138 break;
139 } else { /* Allocate some more space */
140
141 line_index = buff_size;
142 buff_size += 256;
143 line_buff = realloc(line_buff, buff_size);
144 }
145 }
146#endif /* GR_SCALE_DYNAMIC */
147
148 /* Now parse the line */
149 group.gr_name = line_buff;
150 ptr = strchr(line_buff, ':');
151 if (ptr == NULL)
152 goto restart;
153 *ptr++ = '\0';
154
155 group.gr_passwd = ptr;
156 ptr = strchr(ptr, ':');
157 if (ptr == NULL)
158 goto restart;
159 *ptr++ = '\0';
160
161 field_begin = ptr;
162 ptr = strchr(ptr, ':');
163 if (ptr == NULL)
164 goto restart;
165 *ptr++ = '\0';
166
167 group.gr_gid = (gid_t) strtoul(field_begin, &endptr, 10);
168 if (*endptr != '\0')
169 goto restart;
170
171 member_num = 0;
172 field_begin = ptr;
173
174#ifndef GR_SCALE_DYNAMIC
175 while ((ptr = strchr(ptr, ',')) != NULL) {
176 *ptr = '\0';
177 ptr++;
178 members[member_num] = field_begin;
179 field_begin = ptr;
180 member_num++;
181 }
182 if (*field_begin == '\0')
183 members[member_num] = NULL;
184 else {
185 members[member_num] = field_begin;
186 members[member_num + 1] = NULL;
187 }
188#else /* !GR_SCALE_DYNAMIC */
189 free(members);
190 members = (char **) malloc((member_num + 1) * sizeof(char *));
191 for ( ; field_begin && *field_begin != '\0'; field_begin = ptr) {
192 if ((ptr = strchr(field_begin, ',')) != NULL)
193 *ptr++ = '\0';
194 members[member_num++] = field_begin;
195 members = (char **) realloc(members,
196 (member_num + 1) * sizeof(char *));
197 }
198 members[member_num] = NULL;
199#endif /* GR_SCALE_DYNAMIC */
200
201 group.gr_mem = members;
202 return &group;
203}
diff --git a/libpwdgrp/__getpwent.c b/libpwdgrp/__getpwent.c
deleted file mode 100644
index 09ed63139..000000000
--- a/libpwdgrp/__getpwent.c
+++ /dev/null
@@ -1,115 +0,0 @@
1/*
2 * __getpwent.c - This file is part of the libc-8086/pwd package for ELKS,
3 * Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the Free
17 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 *
19 */
20
21#include <stdlib.h>
22#include <unistd.h>
23#include <string.h>
24#include <fcntl.h>
25
26#include "pwd_.h"
27#include "busybox.h"
28
29#define PWD_BUFFER_SIZE 256
30
31/* This isn't as flash as my previous version -- it doesn't dynamically
32 scale down the gecos on too-long lines, but it also makes fewer syscalls,
33 so it's probably nicer. Write me if you want the old version. Maybe I
34 should include it as a build-time option... ?
35 -Nat <ndf@linux.mit.edu> */
36
37struct passwd *__getpwent(int pwd_fd)
38{
39 static char line_buff[PWD_BUFFER_SIZE];
40 static struct passwd passwd;
41 char *field_begin;
42 char *endptr;
43 char *gid_ptr=NULL;
44 char *uid_ptr=NULL;
45 int line_len;
46 int i;
47
48 /* We use the restart label to handle malformatted lines */
49 restart:
50 /* Read the passwd line into the static buffer using a minimal of
51 syscalls. */
52 if ((line_len = read(pwd_fd, line_buff, PWD_BUFFER_SIZE)) <= 0)
53 return NULL;
54 field_begin = strchr(line_buff, '\n');
55 if (field_begin != NULL)
56 lseek(pwd_fd, (long) (1 + field_begin - (line_buff + line_len)),
57 SEEK_CUR);
58 else { /* The line is too long - skip it. :-\ */
59
60 do {
61 if ((line_len = read(pwd_fd, line_buff, PWD_BUFFER_SIZE)) <= 0)
62 return NULL;
63 } while (!(field_begin = strchr(line_buff, '\n')));
64 lseek(pwd_fd, (long) (field_begin - line_buff) - line_len + 1,
65 SEEK_CUR);
66 goto restart;
67 }
68 if (*line_buff == '#' || *line_buff == ' ' || *line_buff == '\n' ||
69 *line_buff == '\t')
70 goto restart;
71 *field_begin = '\0';
72
73 /* We've read the line; now parse it. */
74 field_begin = line_buff;
75 for (i = 0; i < 7; i++) {
76 switch (i) {
77 case 0:
78 passwd.pw_name = field_begin;
79 break;
80 case 1:
81 passwd.pw_passwd = field_begin;
82 break;
83 case 2:
84 uid_ptr = field_begin;
85 break;
86 case 3:
87 gid_ptr = field_begin;
88 break;
89 case 4:
90 passwd.pw_gecos = field_begin;
91 break;
92 case 5:
93 passwd.pw_dir = field_begin;
94 break;
95 case 6:
96 passwd.pw_shell = field_begin;
97 break;
98 }
99 if (i < 6) {
100 field_begin = strchr(field_begin, ':');
101 if (field_begin == NULL)
102 goto restart;
103 *field_begin++ = '\0';
104 }
105 }
106 passwd.pw_gid = (gid_t) strtoul(gid_ptr, &endptr, 10);
107 if (*endptr != '\0')
108 goto restart;
109
110 passwd.pw_uid = (uid_t) strtoul(uid_ptr, &endptr, 10);
111 if (*endptr != '\0')
112 goto restart;
113
114 return &passwd;
115}
diff --git a/libpwdgrp/fgetgrent.c b/libpwdgrp/fgetgrent.c
deleted file mode 100644
index 77c2884ed..000000000
--- a/libpwdgrp/fgetgrent.c
+++ /dev/null
@@ -1,35 +0,0 @@
1/*
2 * fgetgrent.c - This file is part of the libc-8086/grp package for ELKS,
3 * Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the Free
17 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 *
19 */
20
21#include "busybox.h"
22
23#include <stdio.h>
24#include <errno.h>
25#include "grp_.h"
26
27struct group *fgetgrent(FILE * file)
28{
29 if (file == NULL) {
30 errno = EINTR;
31 return NULL;
32 }
33
34 return bb_getgrent(fileno(file));
35}
diff --git a/libpwdgrp/fgetpwent.c b/libpwdgrp/fgetpwent.c
deleted file mode 100644
index 74bf922d7..000000000
--- a/libpwdgrp/fgetpwent.c
+++ /dev/null
@@ -1,35 +0,0 @@
1/*
2 * fgetpwent.c - This file is part of the libc-8086/pwd package for ELKS,
3 * Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the Free
17 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 *
19 */
20
21#include "busybox.h"
22
23#include <errno.h>
24#include <stdio.h>
25#include "pwd_.h"
26
27struct passwd *fgetpwent(FILE * file)
28{
29 if (file == NULL) {
30 errno = EINTR;
31 return NULL;
32 }
33
34 return __getpwent(fileno(file));
35}
diff --git a/libpwdgrp/getgrgid.c b/libpwdgrp/getgrgid.c
deleted file mode 100644
index 4502e2b42..000000000
--- a/libpwdgrp/getgrgid.c
+++ /dev/null
@@ -1,44 +0,0 @@
1/*
2 * getgrgid.c - This file is part of the libc-8086/grp package for ELKS,
3 * Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the Free
17 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 *
19 */
20
21#include "busybox.h"
22
23#include <sys/types.h>
24#include <unistd.h>
25#include <fcntl.h>
26#include "grp_.h"
27
28struct group *getgrgid(const gid_t gid)
29{
30 struct group *group;
31 int grp_fd;
32
33 if ((grp_fd = open(bb_path_group_file, O_RDONLY)) < 0)
34 return NULL;
35
36 while ((group = bb_getgrent(grp_fd)) != NULL)
37 if (group->gr_gid == gid) {
38 close(grp_fd);
39 return group;
40 }
41
42 close(grp_fd);
43 return NULL;
44}
diff --git a/libpwdgrp/getgrnam.c b/libpwdgrp/getgrnam.c
deleted file mode 100644
index 766b7bc5d..000000000
--- a/libpwdgrp/getgrnam.c
+++ /dev/null
@@ -1,50 +0,0 @@
1/*
2 * getgrnam.c - This file is part of the libc-8086/grp package for ELKS,
3 * Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the Free
17 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 *
19 */
20
21#include "busybox.h"
22
23#include <unistd.h>
24#include <string.h>
25#include <errno.h>
26#include <fcntl.h>
27#include "grp_.h"
28
29struct group *getgrnam(const char *name)
30{
31 int grp_fd;
32 struct group *group;
33
34 if (name == NULL) {
35 errno = EINVAL;
36 return NULL;
37 }
38
39 if ((grp_fd = open(bb_path_group_file, O_RDONLY)) < 0)
40 return NULL;
41
42 while ((group = bb_getgrent(grp_fd)) != NULL)
43 if (!strcmp(group->gr_name, name)) {
44 close(grp_fd);
45 return group;
46 }
47
48 close(grp_fd);
49 return NULL;
50}
diff --git a/libpwdgrp/getpw.c b/libpwdgrp/getpw.c
deleted file mode 100644
index 8494a6ae9..000000000
--- a/libpwdgrp/getpw.c
+++ /dev/null
@@ -1,47 +0,0 @@
1/*
2 * getpw.c - This file is part of the libc-8086/pwd package for ELKS,
3 * Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the Free
17 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 *
19 */
20
21#include "busybox.h"
22
23#include <sys/types.h>
24#include <errno.h>
25#include <stdio.h>
26#include "pwd_.h"
27
28int getpw(uid_t uid, char *buf)
29{
30 struct passwd *passwd;
31
32 if (buf == NULL) {
33 errno = EINVAL;
34 return -1;
35 }
36 if ((passwd = getpwuid(uid)) == NULL)
37 return -1;
38
39 if (sprintf (buf, "%s:%s:%u:%u:%s:%s:%s", passwd->pw_name, passwd->pw_passwd,
40 passwd->pw_gid, passwd->pw_uid, passwd->pw_gecos, passwd->pw_dir,
41 passwd->pw_shell) < 0) {
42 errno = ENOBUFS;
43 return -1;
44 }
45
46 return 0;
47}
diff --git a/libpwdgrp/getpwnam.c b/libpwdgrp/getpwnam.c
deleted file mode 100644
index f4caeeab1..000000000
--- a/libpwdgrp/getpwnam.c
+++ /dev/null
@@ -1,51 +0,0 @@
1/*
2 * getpwnam.c - This file is part of the libc-8086/pwd package for ELKS,
3 * Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the Free
17 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 *
19 */
20
21#include "busybox.h"
22
23#include <unistd.h>
24#include <string.h>
25#include <errno.h>
26#include <fcntl.h>
27#include "pwd_.h"
28
29
30struct passwd *getpwnam(const char *name)
31{
32 int passwd_fd;
33 struct passwd *passwd;
34
35 if (name == NULL) {
36 errno = EINVAL;
37 return NULL;
38 }
39
40 if ((passwd_fd = open(bb_path_passwd_file, O_RDONLY)) < 0)
41 return NULL;
42
43 while ((passwd = __getpwent(passwd_fd)) != NULL)
44 if (!strcmp(passwd->pw_name, name)) {
45 close(passwd_fd);
46 return passwd;
47 }
48
49 close(passwd_fd);
50 return NULL;
51}
diff --git a/libpwdgrp/getpwuid.c b/libpwdgrp/getpwuid.c
deleted file mode 100644
index 7fa7ed956..000000000
--- a/libpwdgrp/getpwuid.c
+++ /dev/null
@@ -1,44 +0,0 @@
1/*
2 * getpwuid.c - This file is part of the libc-8086/pwd package for ELKS,
3 * Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the Free
17 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 *
19 */
20
21#include <stdlib.h>
22#include <unistd.h>
23#include <fcntl.h>
24
25#include "busybox.h"
26#include "pwd_.h"
27
28struct passwd *getpwuid(uid_t uid)
29{
30 int passwd_fd;
31 struct passwd *passwd;
32
33 if ((passwd_fd = open(bb_path_passwd_file, O_RDONLY)) < 0)
34 return NULL;
35
36 while ((passwd = __getpwent(passwd_fd)) != NULL)
37 if (passwd->pw_uid == uid) {
38 close(passwd_fd);
39 return passwd;
40 }
41
42 close(passwd_fd);
43 return NULL;
44}
diff --git a/libpwdgrp/grent.c b/libpwdgrp/grent.c
deleted file mode 100644
index 753026c29..000000000
--- a/libpwdgrp/grent.c
+++ /dev/null
@@ -1,54 +0,0 @@
1/*
2 * grent.c - This file is part of the libc-8086/grp package for ELKS,
3 * Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the Free
17 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 *
19 */
20
21/*
22 * setgrent(), endgrent(), and getgrent() are mutually-dependent functions,
23 * so they are all included in the same object file, and thus all linked
24 * in together.
25 */
26
27#include "busybox.h"
28
29#include <unistd.h>
30#include <fcntl.h>
31#include "grp_.h"
32
33static int grp_fd = -1;
34
35void setgrent(void)
36{
37 if (grp_fd != -1)
38 close(grp_fd);
39 grp_fd = open(bb_path_group_file, O_RDONLY);
40}
41
42void endgrent(void)
43{
44 if (grp_fd != -1)
45 close(grp_fd);
46 grp_fd = -1;
47}
48
49struct group *getgrent(void)
50{
51 if (grp_fd == -1)
52 return NULL;
53 return bb_getgrent(grp_fd);
54}
diff --git a/libpwdgrp/initgroups.c b/libpwdgrp/initgroups.c
deleted file mode 100644
index 6577ec62f..000000000
--- a/libpwdgrp/initgroups.c
+++ /dev/null
@@ -1,115 +0,0 @@
1/*
2 * initgroups.c - This file is part of the libc-8086/grp package for ELKS,
3 * Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the Free
17 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 *
19 */
20
21#include "busybox.h"
22
23#include <unistd.h>
24#include <string.h>
25#include <fcntl.h>
26#include "grp_.h"
27
28/*
29 * Define GR_SCALE_DYNAMIC if you want grp to dynamically scale its read buffer
30 * so that lines of any length can be used. On very very small systems,
31 * you may want to leave this undefined because it will make the grp functions
32 * somewhat larger (because of the inclusion of malloc and the code necessary).
33 * On larger systems, you will want to define this, because grp will _not_
34 * deal with long lines gracefully (they will be skipped).
35 */
36#undef GR_SCALE_DYNAMIC
37
38#ifndef GR_SCALE_DYNAMIC
39/*
40 * If scaling is not dynamic, the buffers will be statically allocated, and
41 * maximums must be chosen. GR_MAX_LINE_LEN is the maximum number of
42 * characters per line in the group file. GR_MAX_MEMBERS is the maximum
43 * number of members of any given group.
44 */
45#define GR_MAX_LINE_LEN 128
46/* GR_MAX_MEMBERS = (GR_MAX_LINE_LEN-(24+3+6))/9 */
47#define GR_MAX_MEMBERS 11
48
49#endif /* !GR_SCALE_DYNAMIC */
50
51
52/*
53 * Define GR_DYNAMIC_GROUP_LIST to make initgroups() dynamically allocate
54 * space for it's GID array before calling setgroups(). This is probably
55 * unnecessary scalage, so it's undefined by default.
56 */
57#undef GR_DYNAMIC_GROUP_LIST
58
59#ifndef GR_DYNAMIC_GROUP_LIST
60/*
61 * GR_MAX_GROUPS is the size of the static array initgroups() uses for
62 * its static GID array if GR_DYNAMIC_GROUP_LIST isn't defined.
63 */
64#define GR_MAX_GROUPS 64
65
66#endif /* !GR_DYNAMIC_GROUP_LIST */
67
68int initgroups(__const char *user, gid_t gid)
69{
70 register struct group *group;
71
72#ifndef GR_DYNAMIC_GROUP_LIST
73 gid_t group_list[GR_MAX_GROUPS];
74#else
75 gid_t *group_list = NULL;
76#endif
77 register char **tmp_mem;
78 int num_groups;
79 int grp_fd;
80
81
82 if ((grp_fd = open(bb_path_group_file, O_RDONLY)) < 0)
83 return -1;
84
85 num_groups = 0;
86#ifdef GR_DYNAMIC_GROUP_LIST
87 group_list = (gid_t *) realloc(group_list, 1);
88#endif
89 group_list[num_groups] = gid;
90#ifndef GR_DYNAMIC_GROUP_LIST
91 while (num_groups < GR_MAX_GROUPS &&
92 (group = bb_getgrent(grp_fd)) != NULL)
93#else
94 while ((group = bb_getgrent(grp_fd)) != NULL)
95#endif
96 {
97 if (group->gr_gid != gid)
98 {
99 tmp_mem = group->gr_mem;
100 while (*tmp_mem != NULL) {
101 if (!strcmp(*tmp_mem, user)) {
102 num_groups++;
103#ifdef GR_DYNAMIC_GROUP_LIST
104 group_list = (gid_t *) realloc(group_list, num_groups *
105 sizeof(gid_t *));
106#endif
107 group_list[num_groups-1] = group->gr_gid;
108 }
109 tmp_mem++;
110 }
111 }
112 }
113 close(grp_fd);
114 return setgroups(num_groups, group_list);
115}
diff --git a/libpwdgrp/putpwent.c b/libpwdgrp/putpwent.c
deleted file mode 100644
index 0710ff5b2..000000000
--- a/libpwdgrp/putpwent.c
+++ /dev/null
@@ -1,39 +0,0 @@
1/*
2 * putpwent.c - This file is part of the libc-8086/pwd package for ELKS,
3 * Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the Free
17 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 *
19 */
20
21#include "busybox.h"
22
23#include <stdio.h>
24#include <errno.h>
25#include "pwd_.h"
26
27int putpwent(const struct passwd *passwd, FILE * f)
28{
29 if (passwd == NULL || f == NULL) {
30 errno = EINVAL;
31 return -1;
32 }
33 if (fprintf (f, "%s:%s:%u:%u:%s:%s:%s\n", passwd->pw_name, passwd->pw_passwd,
34 passwd->pw_uid, passwd->pw_gid, passwd->pw_gecos, passwd->pw_dir,
35 passwd->pw_shell) < 0)
36 return -1;
37
38 return 0;
39}
diff --git a/libpwdgrp/pwd_grp.c b/libpwdgrp/pwd_grp.c
new file mode 100644
index 000000000..9412faeb4
--- /dev/null
+++ b/libpwdgrp/pwd_grp.c
@@ -0,0 +1,1116 @@
1/* Copyright (C) 2003 Manuel Novoa III
2 *
3 * This library is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU Library General Public
5 * License as published by the Free Software Foundation; either
6 * version 2 of the License, or (at your option) any later version.
7 *
8 * This library is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * Library General Public License for more details.
12 *
13 * You should have received a copy of the GNU Library General Public
14 * License along with this library; if not, write to the Free
15 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
16 */
17
18/* Nov 6, 2003 Initial version.
19 *
20 * NOTE: This implementation is quite strict about requiring all
21 * field seperators. It also does not allow leading whitespace
22 * except when processing the numeric fields. glibc is more
23 * lenient. See the various glibc difference comments below.
24 *
25 * TODO:
26 * Move to dynamic allocation of (currently staticly allocated)
27 * buffers; especially for the group-related functions since
28 * large group member lists will cause error returns.
29 *
30 */
31
32#include <features.h>
33#include <stdio.h>
34#include <stdlib.h>
35#include <stdint.h>
36#include <string.h>
37#include <stddef.h>
38#include <errno.h>
39#include <assert.h>
40#include <ctype.h>
41#include "busybox.h"
42#include "pwd_.h"
43#include "grp_.h"
44#include "shadow_.h"
45
46#ifndef _PATH_SHADOW
47#define _PATH_SHADOW "/etc/shadow"
48#endif
49#ifndef _PATH_PASSWD
50#define _PATH_PASSWD "/etc/passwd"
51#endif
52#ifndef _PATH_GROUP
53#define _PATH_GROUP "/etc/group"
54#endif
55
56/**********************************************************************/
57/* Sizes for staticly allocated buffers. */
58
59/* If you change these values, also change _SC_GETPW_R_SIZE_MAX and
60 * _SC_GETGR_R_SIZE_MAX in libc/unistd/sysconf.c to match */
61#define PWD_BUFFER_SIZE 256
62#define GRP_BUFFER_SIZE 256
63
64/**********************************************************************/
65/* Prototypes for internal functions. */
66
67extern int __parsepwent(void *pw, char *line);
68extern int __parsegrent(void *gr, char *line);
69extern int __parsespent(void *sp, char *line);
70
71extern int __pgsreader(int (*__parserfunc)(void *d, char *line), void *data,
72 char *__restrict line_buff, size_t buflen, FILE *f);
73
74/**********************************************************************/
75/* For the various fget??ent_r funcs, return
76 *
77 * 0: success
78 * ENOENT: end-of-file encountered
79 * ERANGE: buflen too small
80 * other error values possible. See __pgsreader.
81 *
82 * Also, *result == resultbuf on success and NULL on failure.
83 *
84 * NOTE: glibc difference - For the ENOENT case, glibc also sets errno.
85 * We do not, as it really isn't an error if we reach the end-of-file.
86 * Doing so is analogous to having fgetc() set errno on EOF.
87 */
88/**********************************************************************/
89#ifdef L_fgetpwent_r
90
91int fgetpwent_r(FILE *__restrict stream, struct passwd *__restrict resultbuf,
92 char *__restrict buffer, size_t buflen,
93 struct passwd **__restrict result)
94{
95 int rv;
96
97 *result = NULL;
98
99 if (!(rv = __pgsreader(__parsepwent, resultbuf, buffer, buflen, stream))) {
100 *result = resultbuf;
101 }
102
103 return rv;
104}
105
106#endif
107/**********************************************************************/
108#ifdef L_fgetgrent_r
109
110int fgetgrent_r(FILE *__restrict stream, struct group *__restrict resultbuf,
111 char *__restrict buffer, size_t buflen,
112 struct group **__restrict result)
113{
114 int rv;
115
116 *result = NULL;
117
118 if (!(rv = __pgsreader(__parsegrent, resultbuf, buffer, buflen, stream))) {
119 *result = resultbuf;
120 }
121
122 return rv;
123}
124
125#endif
126/**********************************************************************/
127#ifdef L_fgetspent_r
128
129int fgetspent_r(FILE *__restrict stream, struct spwd *__restrict resultbuf,
130 char *__restrict buffer, size_t buflen,
131 struct spwd **__restrict result)
132{
133 int rv;
134
135 *result = NULL;
136
137 if (!(rv = __pgsreader(__parsespent, resultbuf, buffer, buflen, stream))) {
138 *result = resultbuf;
139 }
140
141 return rv;
142}
143
144#endif
145/**********************************************************************/
146/* For the various fget??ent funcs, return NULL on failure and a
147 * pointer to the appropriate struct (staticly allocated) on success.
148 */
149/**********************************************************************/
150#ifdef L_fgetpwent
151
152struct passwd *fgetpwent(FILE *stream)
153{
154 static char buffer[PWD_BUFFER_SIZE];
155 static struct passwd resultbuf;
156 struct passwd *result;
157
158 fgetpwent_r(stream, &resultbuf, buffer, sizeof(buffer), &result);
159 return result;
160}
161
162#endif
163/**********************************************************************/
164#ifdef L_fgetgrent
165
166struct group *fgetgrent(FILE *stream)
167{
168 static char buffer[GRP_BUFFER_SIZE];
169 static struct group resultbuf;
170 struct group *result;
171
172 fgetgrent_r(stream, &resultbuf, buffer, sizeof(buffer), &result);
173 return result;
174}
175
176#endif
177/**********************************************************************/
178#ifdef L_fgetspent
179
180extern int fgetspent_r(FILE *__restrict stream, struct spwd *__restrict resultbuf,
181 char *__restrict buffer, size_t buflen,
182 struct spwd **__restrict result);
183struct spwd *fgetspent(FILE *stream)
184{
185 static char buffer[PWD_BUFFER_SIZE];
186 static struct spwd resultbuf;
187 struct spwd *result;
188
189 fgetspent_r(stream, &resultbuf, buffer, sizeof(buffer), &result);
190 return result;
191}
192
193#endif
194/**********************************************************************/
195#ifdef L_sgetspent_r
196
197int sgetspent_r(const char *string, struct spwd *result_buf,
198 char *buffer, size_t buflen, struct spwd **result)
199{
200 int rv = ERANGE;
201
202 *result = NULL;
203
204 if (buflen < PWD_BUFFER_SIZE) {
205 DO_ERANGE:
206 errno=rv;
207 goto DONE;
208 }
209
210 if (string != buffer) {
211 if (strlen(string) >= buflen) {
212 goto DO_ERANGE;
213 }
214 strcpy(buffer, string);
215 }
216
217 if (!(rv = __parsespent(result_buf, buffer))) {
218 *result = result_buf;
219 }
220
221 DONE:
222 return rv;
223}
224
225#endif
226/**********************************************************************/
227
228#ifdef GETXXKEY_R_FUNC
229#error GETXXKEY_R_FUNC is already defined!
230#endif
231
232#ifdef L_getpwnam_r
233#define GETXXKEY_R_FUNC getpwnam_r
234#define GETXXKEY_R_PARSER __parsepwent
235#define GETXXKEY_R_ENTTYPE struct passwd
236#define GETXXKEY_R_TEST(ENT) (!strcmp((ENT)->pw_name, key))
237#define DO_GETXXKEY_R_KEYTYPE const char *__restrict
238#define DO_GETXXKEY_R_PATHNAME _PATH_PASSWD
239#endif
240
241#ifdef L_getgrnam_r
242#define GETXXKEY_R_FUNC getgrnam_r
243#define GETXXKEY_R_PARSER __parsegrent
244#define GETXXKEY_R_ENTTYPE struct group
245#define GETXXKEY_R_TEST(ENT) (!strcmp((ENT)->gr_name, key))
246#define DO_GETXXKEY_R_KEYTYPE const char *__restrict
247#define DO_GETXXKEY_R_PATHNAME _PATH_GROUP
248#endif
249
250#ifdef L_getspnam_r
251#define GETXXKEY_R_FUNC getspnam_r
252#define GETXXKEY_R_PARSER __parsespent
253#define GETXXKEY_R_ENTTYPE struct spwd
254#define GETXXKEY_R_TEST(ENT) (!strcmp((ENT)->sp_namp, key))
255#define DO_GETXXKEY_R_KEYTYPE const char *__restrict
256#define DO_GETXXKEY_R_PATHNAME _PATH_SHADOW
257#endif
258
259#ifdef L_getpwuid_r
260#define GETXXKEY_R_FUNC getpwuid_r
261#define GETXXKEY_R_PARSER __parsepwent
262#define GETXXKEY_R_ENTTYPE struct passwd
263#define GETXXKEY_R_TEST(ENT) ((ENT)->pw_uid == key)
264#define DO_GETXXKEY_R_KEYTYPE uid_t
265#define DO_GETXXKEY_R_PATHNAME _PATH_PASSWD
266#endif
267
268#ifdef L_getgrgid_r
269#define GETXXKEY_R_FUNC getgrgid_r
270#define GETXXKEY_R_PARSER __parsegrent
271#define GETXXKEY_R_ENTTYPE struct group
272#define GETXXKEY_R_TEST(ENT) ((ENT)->gr_gid == key)
273#define DO_GETXXKEY_R_KEYTYPE gid_t
274#define DO_GETXXKEY_R_PATHNAME _PATH_GROUP
275#endif
276
277/**********************************************************************/
278#ifdef GETXXKEY_R_FUNC
279
280int GETXXKEY_R_FUNC(DO_GETXXKEY_R_KEYTYPE key,
281 GETXXKEY_R_ENTTYPE *__restrict resultbuf,
282 char *__restrict buffer, size_t buflen,
283 GETXXKEY_R_ENTTYPE **__restrict result)
284{
285 FILE *stream;
286 int rv;
287
288 *result = NULL;
289
290 if (!(stream = fopen(DO_GETXXKEY_R_PATHNAME, "r"))) {
291 rv = errno;
292 } else {
293 do {
294 if (!(rv = __pgsreader(GETXXKEY_R_PARSER, resultbuf,
295 buffer, buflen, stream))
296 ) {
297 if (GETXXKEY_R_TEST(resultbuf)) { /* Found key? */
298 *result = resultbuf;
299 break;
300 }
301 } else {
302 if (rv == ENOENT) { /* end-of-file encountered. */
303 rv = 0;
304 }
305 break;
306 }
307 } while (1);
308 fclose(stream);
309 }
310
311 return rv;
312}
313
314#endif
315/**********************************************************************/
316#ifdef L_getpwuid
317
318struct passwd *getpwuid(uid_t uid)
319{
320 static char buffer[PWD_BUFFER_SIZE];
321 static struct passwd resultbuf;
322 struct passwd *result;
323
324 getpwuid_r(uid, &resultbuf, buffer, sizeof(buffer), &result);
325 return result;
326}
327
328#endif
329/**********************************************************************/
330#ifdef L_getgrgid
331
332struct group *getgrgid(gid_t gid)
333{
334 static char buffer[GRP_BUFFER_SIZE];
335 static struct group resultbuf;
336 struct group *result;
337
338 getgrgid_r(gid, &resultbuf, buffer, sizeof(buffer), &result);
339 return result;
340}
341
342#endif
343/**********************************************************************/
344#ifdef L_getspuid_r
345
346/* This function is non-standard and is currently not built. It seems
347 * to have been created as a reentrant version of the non-standard
348 * functions getspuid. Why getspuid was added, I do not know. */
349
350int getspuid_r(uid_t uid, struct spwd *__restrict resultbuf,
351 char *__restrict buffer, size_t buflen,
352 struct spwd **__restrict result)
353{
354 int rv;
355 struct passwd *pp;
356 struct passwd password;
357 char pwd_buff[PWD_BUFFER_SIZE];
358
359 *result = NULL;
360 if (!(rv = getpwuid_r(uid, &password, pwd_buff, sizeof(pwd_buff), &pp))) {
361 rv = getspnam_r(password.pw_name, resultbuf, buffer, buflen, result);
362 }
363
364 return rv;
365}
366
367#endif
368/**********************************************************************/
369#ifdef L_getspuid
370
371/* This function is non-standard and is currently not built.
372 * Why it was added, I do not know. */
373
374struct spwd *getspuid(uid_t uid)
375{
376 static char buffer[PWD_BUFFER_SIZE];
377 static struct spwd resultbuf;
378 struct spwd *result;
379
380 getspuid_r(uid, &resultbuf, buffer, sizeof(buffer), &result);
381 return result;
382}
383
384#endif
385/**********************************************************************/
386#ifdef L_getpwnam
387
388struct passwd *getpwnam(const char *name)
389{
390 static char buffer[PWD_BUFFER_SIZE];
391 static struct passwd resultbuf;
392 struct passwd *result;
393
394 getpwnam_r(name, &resultbuf, buffer, sizeof(buffer), &result);
395 return result;
396}
397
398#endif
399/**********************************************************************/
400#ifdef L_getgrnam
401
402struct group *getgrnam(const char *name)
403{
404 static char buffer[GRP_BUFFER_SIZE];
405 static struct group resultbuf;
406 struct group *result;
407
408 getgrnam_r(name, &resultbuf, buffer, sizeof(buffer), &result);
409 return result;
410}
411
412#endif
413/**********************************************************************/
414#ifdef L_getspnam
415
416struct spwd *getspnam(const char *name)
417{
418 static char buffer[PWD_BUFFER_SIZE];
419 static struct spwd resultbuf;
420 struct spwd *result;
421
422 getspnam_r(name, &resultbuf, buffer, sizeof(buffer), &result);
423 return result;
424}
425
426#endif
427/**********************************************************************/
428#ifdef L_getpw
429
430int getpw(uid_t uid, char *buf)
431{
432 struct passwd resultbuf;
433 struct passwd *result;
434 char buffer[PWD_BUFFER_SIZE];
435
436 if (!buf) {
437 errno=EINVAL;
438 } else if (!getpwuid_r(uid, &resultbuf, buffer, sizeof(buffer), &result)) {
439 if (sprintf(buf, "%s:%s:%lu:%lu:%s:%s:%s\n",
440 resultbuf.pw_name, resultbuf.pw_passwd,
441 (unsigned long)(resultbuf.pw_uid),
442 (unsigned long)(resultbuf.pw_gid),
443 resultbuf.pw_gecos, resultbuf.pw_dir,
444 resultbuf.pw_shell) >= 0
445 ) {
446 return 0;
447 }
448 }
449
450 return -1;
451}
452
453#endif
454/**********************************************************************/
455#ifdef L_getpwent_r
456
457static FILE *pwf /*= NULL*/;
458void setpwent(void)
459{
460 if (pwf) {
461 rewind(pwf);
462 }
463}
464
465void endpwent(void)
466{
467 if (pwf) {
468 fclose(pwf);
469 pwf = NULL;
470 }
471}
472
473
474int getpwent_r(struct passwd *__restrict resultbuf,
475 char *__restrict buffer, size_t buflen,
476 struct passwd **__restrict result)
477{
478 int rv;
479
480 *result = NULL; /* In case of error... */
481
482 if (!pwf) {
483 if (!(pwf = fopen(_PATH_PASSWD, "r"))) {
484 rv = errno;
485 goto ERR;
486 }
487 }
488
489 if (!(rv = __pgsreader(__parsepwent, resultbuf,
490 buffer, buflen, pwf))) {
491 *result = resultbuf;
492 }
493
494 ERR:
495 return rv;
496}
497
498#endif
499/**********************************************************************/
500#ifdef L_getgrent_r
501
502static FILE *grf /*= NULL*/;
503void setgrent(void)
504{
505 if (grf) {
506 rewind(grf);
507 }
508}
509
510void endgrent(void)
511{
512 if (grf) {
513 fclose(grf);
514 grf = NULL;
515 }
516}
517
518int getgrent_r(struct group *__restrict resultbuf,
519 char *__restrict buffer, size_t buflen,
520 struct group **__restrict result)
521{
522 int rv;
523
524 *result = NULL; /* In case of error... */
525
526 if (!grf) {
527 if (!(grf = fopen(_PATH_GROUP, "r"))) {
528 rv = errno;
529 goto ERR;
530 }
531 }
532
533 if (!(rv = __pgsreader(__parsegrent, resultbuf,
534 buffer, buflen, grf))) {
535 *result = resultbuf;
536 }
537
538 ERR:
539 return rv;
540}
541
542#endif
543/**********************************************************************/
544#ifdef L_getspent_r
545
546static FILE *spf /*= NULL*/;
547void setspent(void)
548{
549 if (spf) {
550 rewind(spf);
551 }
552}
553
554void endspent(void)
555{
556 if (spf) {
557 fclose(spf);
558 spf = NULL;
559 }
560}
561
562int getspent_r(struct spwd *resultbuf, char *buffer,
563 size_t buflen, struct spwd **result)
564{
565 int rv;
566
567 *result = NULL; /* In case of error... */
568
569 if (!spf) {
570 if (!(spf = fopen(_PATH_SHADOW, "r"))) {
571 rv = errno;
572 goto ERR;
573 }
574 }
575
576 if (!(rv = __pgsreader(__parsespent, resultbuf,
577 buffer, buflen, spf))) {
578 *result = resultbuf;
579 }
580
581 ERR:
582 return rv;
583}
584
585#endif
586/**********************************************************************/
587#ifdef L_getpwent
588
589struct passwd *getpwent(void)
590{
591 static char line_buff[PWD_BUFFER_SIZE];
592 static struct passwd pwd;
593 struct passwd *result;
594
595 getpwent_r(&pwd, line_buff, sizeof(line_buff), &result);
596 return result;
597}
598
599#endif
600/**********************************************************************/
601#ifdef L_getgrent
602
603struct group *getgrent(void)
604{
605 static char line_buff[GRP_BUFFER_SIZE];
606 static struct group gr;
607 struct group *result;
608
609 getgrent_r(&gr, line_buff, sizeof(line_buff), &result);
610 return result;
611}
612
613#endif
614/**********************************************************************/
615#ifdef L_getspent
616
617struct spwd *getspent(void)
618{
619 static char line_buff[PWD_BUFFER_SIZE];
620 static struct spwd spwd;
621 struct spwd *result;
622
623 getspent_r(&spwd, line_buff, sizeof(line_buff), &result);
624 return result;
625}
626
627#endif
628/**********************************************************************/
629#ifdef L_sgetspent
630
631struct spwd *sgetspent(const char *string)
632{
633 static char line_buff[PWD_BUFFER_SIZE];
634 static struct spwd spwd;
635 struct spwd *result;
636
637 sgetspent_r(string, &spwd, line_buff, sizeof(line_buff), &result);
638 return result;
639}
640
641#endif
642/**********************************************************************/
643#ifdef L_initgroups
644
645int initgroups(const char *user, gid_t gid)
646{
647 FILE *grf;
648 gid_t *group_list;
649 int num_groups, rv;
650 char **m;
651 struct group group;
652 char buff[PWD_BUFFER_SIZE];
653
654 rv = -1;
655
656 /* We alloc space for 8 gids at a time. */
657 if (((group_list = (gid_t *) malloc(8*sizeof(gid_t *))) != NULL)
658 && ((grf = fopen(_PATH_GROUP, "r")) != NULL)
659 ) {
660
661 *group_list = gid;
662 num_groups = 1;
663
664 while (!__pgsreader(__parsegrent, &group, buff, sizeof(buff), grf)) {
665 assert(group.gr_mem); /* Must have at least a NULL terminator. */
666 if (group.gr_gid != gid) {
667 for (m=group.gr_mem ; *m ; m++) {
668 if (!strcmp(*m, user)) {
669 if (!(num_groups & 7)) {
670 gid_t *tmp = (gid_t *)
671 realloc(group_list,
672 (num_groups+8) * sizeof(gid_t *));
673 if (!tmp) {
674 rv = -1;
675 goto DO_CLOSE;
676 }
677 group_list = tmp;
678 }
679 group_list[num_groups++] = group.gr_gid;
680 break;
681 }
682 }
683 }
684 }
685
686 rv = setgroups(num_groups, group_list);
687 DO_CLOSE:
688 fclose(grf);
689 }
690
691 /* group_list will be NULL if initial malloc failed, which may trigger
692 * warnings from various malloc debuggers. */
693 free(group_list);
694 return rv;
695}
696
697#endif
698/**********************************************************************/
699#ifdef L_putpwent
700
701int putpwent(const struct passwd *__restrict p, FILE *__restrict f)
702{
703 int rv = -1;
704
705 if (!p || !f) {
706 errno=EINVAL;
707 } else {
708 /* No extra thread locking is needed above what fprintf does. */
709 if (fprintf(f, "%s:%s:%lu:%lu:%s:%s:%s\n",
710 p->pw_name, p->pw_passwd,
711 (unsigned long)(p->pw_uid),
712 (unsigned long)(p->pw_gid),
713 p->pw_gecos, p->pw_dir, p->pw_shell) >= 0
714 ) {
715 rv = 0;
716 }
717 }
718
719 return rv;
720}
721
722#endif
723/**********************************************************************/
724#ifdef L_putgrent
725
726int putgrent(const struct group *__restrict p, FILE *__restrict f)
727{
728 static const char format[] = ",%s";
729 char **m;
730 const char *fmt;
731 int rv = -1;
732
733 if (!p || !f) { /* Sigh... glibc checks. */
734 errno=EINVAL;
735 } else {
736 if (fprintf(f, "%s:%s:%lu:",
737 p->gr_name, p->gr_passwd,
738 (unsigned long)(p->gr_gid)) >= 0
739 ) {
740
741 fmt = format + 1;
742
743 assert(p->gr_mem);
744 m = p->gr_mem;
745
746 do {
747 if (!*m) {
748 if (fputc_unlocked('\n', f) >= 0) {
749 rv = 0;
750 }
751 break;
752 }
753 if (fprintf(f, fmt, *m) < 0) {
754 break;
755 }
756 ++m;
757 fmt = format;
758 } while (1);
759
760 }
761
762 }
763
764 return rv;
765}
766
767#endif
768/**********************************************************************/
769#ifdef L_putspent
770
771static const unsigned char sp_off[] = {
772 offsetof(struct spwd, sp_lstchg), /* 2 - not a char ptr */
773 offsetof(struct spwd, sp_min), /* 3 - not a char ptr */
774 offsetof(struct spwd, sp_max), /* 4 - not a char ptr */
775 offsetof(struct spwd, sp_warn), /* 5 - not a char ptr */
776 offsetof(struct spwd, sp_inact), /* 6 - not a char ptr */
777 offsetof(struct spwd, sp_expire), /* 7 - not a char ptr */
778};
779
780int putspent(const struct spwd *p, FILE *stream)
781{
782 static const char ld_format[] = "%ld:";
783 const char *f;
784 long int x;
785 int i;
786 int rv = -1;
787
788 /* Unlike putpwent and putgrent, glibc does not check the args. */
789 if (fprintf(stream, "%s:%s:", p->sp_namp,
790 (p->sp_pwdp ? p->sp_pwdp : "")) < 0
791 ) {
792 goto DO_UNLOCK;
793 }
794
795 for (i=0 ; i < sizeof(sp_off) ; i++) {
796 f = ld_format;
797 if ((x = *(const long int *)(((const char *) p) + sp_off[i])) == -1) {
798 f += 3;
799 }
800 if (fprintf(stream, f, x) < 0) {
801 goto DO_UNLOCK;
802 }
803 }
804
805 if ((p->sp_flag != ~0UL) && (fprintf(stream, "%lu", p->sp_flag) < 0)) {
806 goto DO_UNLOCK;
807 }
808
809 if (fputc_unlocked('\n', stream) > 0) {
810 rv = 0;
811 }
812
813DO_UNLOCK:
814 return rv;
815}
816
817#endif
818/**********************************************************************/
819/* Internal uClibc functions. */
820/**********************************************************************/
821#ifdef L___parsepwent
822
823static const unsigned char pw_off[] = {
824 offsetof(struct passwd, pw_name), /* 0 */
825 offsetof(struct passwd, pw_passwd), /* 1 */
826 offsetof(struct passwd, pw_uid), /* 2 - not a char ptr */
827 offsetof(struct passwd, pw_gid), /* 3 - not a char ptr */
828 offsetof(struct passwd, pw_gecos), /* 4 */
829 offsetof(struct passwd, pw_dir), /* 5 */
830 offsetof(struct passwd, pw_shell) /* 6 */
831};
832
833int __parsepwent(void *data, char *line)
834{
835 char *endptr;
836 char *p;
837 int i;
838
839 i = 0;
840 do {
841 p = ((char *) ((struct passwd *) data)) + pw_off[i];
842
843 if ((i & 6) ^ 2) { /* i!=2 and i!=3 */
844 *((char **) p) = line;
845 if (i==6) {
846 return 0;
847 }
848 /* NOTE: glibc difference - glibc allows omission of
849 * ':' seperators after the gid field if all remaining
850 * entries are empty. We require all separators. */
851 if (!(line = strchr(line, ':'))) {
852 break;
853 }
854 } else {
855 unsigned long t = strtoul(line, &endptr, 10);
856 /* Make sure we had at least one digit, and that the
857 * failing char is the next field seperator ':'. See
858 * glibc difference note above. */
859 /* TODO: Also check for leading whitespace? */
860 if ((endptr == line) || (*endptr != ':')) {
861 break;
862 }
863 line = endptr;
864 if (i & 1) { /* i == 3 -- gid */
865 *((gid_t *) p) = t;
866 } else { /* i == 2 -- uid */
867 *((uid_t *) p) = t;
868 }
869 }
870
871 *line++ = 0;
872 ++i;
873 } while (1);
874
875 return -1;
876}
877
878#endif
879/**********************************************************************/
880#ifdef L___parsegrent
881
882static const unsigned char gr_off[] = {
883 offsetof(struct group, gr_name), /* 0 */
884 offsetof(struct group, gr_passwd), /* 1 */
885 offsetof(struct group, gr_gid) /* 2 - not a char ptr */
886};
887
888int __parsegrent(void *data, char *line)
889{
890 char *endptr;
891 char *p;
892 int i;
893 char **members;
894 char *end_of_buf;
895
896 end_of_buf = ((struct group *) data)->gr_name; /* Evil hack! */
897 i = 0;
898 do {
899 p = ((char *) ((struct group *) data)) + gr_off[i];
900
901 if (i < 2) {
902 *((char **) p) = line;
903 if (!(line = strchr(line, ':'))) {
904 break;
905 }
906 *line++ = 0;
907 ++i;
908 } else {
909 *((gid_t *) p) = strtoul(line, &endptr, 10);
910
911 /* NOTE: glibc difference - glibc allows omission of the
912 * trailing colon when there is no member list. We treat
913 * this as an error. */
914
915 /* Make sure we had at least one digit, and that the
916 * failing char is the next field seperator ':'. See
917 * glibc difference note above. */
918 if ((endptr == line) || (*endptr != ':')) {
919 break;
920 }
921
922 i = 1; /* Count terminating NULL ptr. */
923 p = endptr;
924
925 if (p[1]) { /* We have a member list to process. */
926 /* Overwrite the last ':' with a ',' before counting.
927 * This allows us to test for initial ',' and adds
928 * one ',' so that the ',' count equals the member
929 * count. */
930 *p = ',';
931 do {
932 /* NOTE: glibc difference - glibc allows and trims leading
933 * (but not trailing) space. We treat this as an error. */
934 /* NOTE: glibc difference - glibc allows consecutive and
935 * trailing commas, and ignores "empty string" users. We
936 * treat this as an error. */
937 if (*p == ',') {
938 ++i;
939 *p = 0; /* nul-terminate each member string. */
940 if (!*++p || (*p == ',') || isspace(*p)) {
941 goto ERR;
942 }
943 }
944 } while (*++p);
945 }
946
947 /* Now align (p+1), rounding up. */
948 /* Assumes sizeof(char **) is a power of 2. */
949 members = (char **)( (((intptr_t) p) + sizeof(char **))
950 & ~((intptr_t)(sizeof(char **) - 1)) );
951
952 if (((char *)(members + i)) > end_of_buf) { /* No space. */
953 break;
954 }
955
956 ((struct group *) data)->gr_mem = members;
957
958 if (--i) {
959 p = endptr; /* Pointing to char prior to first member. */
960 do {
961 *members++ = ++p;
962 if (!--i) break;
963 while (*++p) {}
964 } while (1);
965 }
966 *members = NULL;
967
968 return 0;
969 }
970 } while (1);
971
972 ERR:
973 return -1;
974}
975
976#endif
977/**********************************************************************/
978#ifdef L___parsespent
979
980static const unsigned char sp_off[] = {
981 offsetof(struct spwd, sp_namp), /* 0 */
982 offsetof(struct spwd, sp_pwdp), /* 1 */
983 offsetof(struct spwd, sp_lstchg), /* 2 - not a char ptr */
984 offsetof(struct spwd, sp_min), /* 3 - not a char ptr */
985 offsetof(struct spwd, sp_max), /* 4 - not a char ptr */
986 offsetof(struct spwd, sp_warn), /* 5 - not a char ptr */
987 offsetof(struct spwd, sp_inact), /* 6 - not a char ptr */
988 offsetof(struct spwd, sp_expire), /* 7 - not a char ptr */
989 offsetof(struct spwd, sp_flag) /* 8 - not a char ptr */
990};
991
992int __parsespent(void *data, char * line)
993{
994 char *endptr;
995 char *p;
996 int i;
997
998 i = 0;
999 do {
1000 p = ((char *) ((struct spwd *) data)) + sp_off[i];
1001 if (i < 2) {
1002 *((char **) p) = line;
1003 if (!(line = strchr(line, ':'))) {
1004 break;
1005 }
1006 } else {
1007#if 0
1008 if (i==5) { /* Support for old format. */
1009 while (isspace(*line)) ++line; /* glibc eats space here. */
1010 if (!*line) {
1011 ((struct spwd *) data)->sp_warn = -1;
1012 ((struct spwd *) data)->sp_inact = -1;
1013 ((struct spwd *) data)->sp_expire = -1;
1014 ((struct spwd *) data)->sp_flag = ~0UL;
1015 return 0;
1016 }
1017 }
1018#endif
1019
1020 *((long *) p) = (long) strtoul(line, &endptr, 10);
1021
1022 if (endptr == line) {
1023 *((long *) p) = ((i != 8) ? -1L : ((long)(~0UL)));
1024 }
1025
1026 line = endptr;
1027
1028 if (i == 8) {
1029 if (!*endptr) {
1030 return 0;
1031 }
1032 break;
1033 }
1034
1035 if (*endptr != ':') {
1036 break;
1037 }
1038
1039 }
1040
1041 *line++ = 0;
1042 ++i;
1043 } while (1);
1044
1045 return EINVAL;
1046}
1047
1048#endif
1049/**********************************************************************/
1050#ifdef L___pgsreader
1051
1052/* Reads until if EOF, or until if finds a line which fits in the buffer
1053 * and for which the parser function succeeds.
1054 *
1055 * Returns 0 on success and ENOENT for end-of-file (glibc concession).
1056 */
1057
1058int __pgsreader(int (*__parserfunc)(void *d, char *line), void *data,
1059 char *__restrict line_buff, size_t buflen, FILE *f)
1060{
1061 int line_len;
1062 int skip;
1063 int rv = ERANGE;
1064
1065 if (buflen < PWD_BUFFER_SIZE) {
1066 errno=rv;
1067 } else {
1068 skip = 0;
1069 do {
1070 if (!fgets_unlocked(line_buff, buflen, f)) {
1071 if (feof_unlocked(f)) {
1072 rv = ENOENT;
1073 }
1074 break;
1075 }
1076
1077 line_len = strlen(line_buff) - 1; /* strlen() must be > 0. */
1078 if (line_buff[line_len] == '\n') {
1079 line_buff[line_len] = 0;
1080 } else if (line_len + 2 == buflen) { /* line too long */
1081 ++skip;
1082 continue;
1083 }
1084
1085 if (skip) {
1086 --skip;
1087 continue;
1088 }
1089
1090 /* NOTE: glibc difference - glibc strips leading whitespace from
1091 * records. We do not allow leading whitespace. */
1092
1093 /* Skip empty lines, comment lines, and lines with leading
1094 * whitespace. */
1095 if (*line_buff && (*line_buff != '#') && !isspace(*line_buff)) {
1096 if (__parserfunc == __parsegrent) { /* Do evil group hack. */
1097 /* The group entry parsing function needs to know where
1098 * the end of the buffer is so that it can construct the
1099 * group member ptr table. */
1100 ((struct group *) data)->gr_name = line_buff + buflen;
1101 }
1102
1103 if (!__parserfunc(data, line_buff)) {
1104 rv = 0;
1105 break;
1106 }
1107 }
1108 } while (1);
1109
1110 }
1111
1112 return rv;
1113}
1114
1115#endif
1116/**********************************************************************/
diff --git a/libpwdgrp/pwent.c b/libpwdgrp/pwent.c
deleted file mode 100644
index 1cdb2d454..000000000
--- a/libpwdgrp/pwent.c
+++ /dev/null
@@ -1,58 +0,0 @@
1/*
2 * pwent.c - This file is part of the libc-8086/pwd package for ELKS,
3 * Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the Free
17 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 *
19 */
20
21#include <unistd.h>
22#include <stdlib.h>
23#include <errno.h>
24#include <fcntl.h>
25
26#include "busybox.h"
27#include "pwd_.h"
28
29/*
30 * setpwent(), endpwent(), and getpwent() are included in the same object
31 * file, since one cannot be used without the other two, so it makes sense to
32 * link them all in together.
33 */
34
35/* file descriptor for the password file currently open */
36static int pw_fd = -1;
37
38void setpwent(void)
39{
40 if (pw_fd != -1)
41 close(pw_fd);
42
43 pw_fd = open(bb_path_passwd_file, O_RDONLY);
44}
45
46void endpwent(void)
47{
48 if (pw_fd != -1)
49 close(pw_fd);
50 pw_fd = -1;
51}
52
53struct passwd *getpwent(void)
54{
55 if (pw_fd != -1)
56 return (__getpwent(pw_fd));
57 return NULL;
58}
diff --git a/libpwdgrp/setgroups.c b/libpwdgrp/setgroups.c
deleted file mode 100644
index 15a16f4e6..000000000
--- a/libpwdgrp/setgroups.c
+++ /dev/null
@@ -1,40 +0,0 @@
1/* vi: set sw=4 ts=4: */
2/*
3 * Taken from the set of syscalls for uClibc
4 *
5 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU Library General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
15 * for more details.
16 *
17 * You should have received a copy of the GNU Library General Public License
18 * along with this program; if not, write to the Free Software Foundation,
19 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 *
21 */
22
23#include "busybox.h"
24
25#include <errno.h>
26#include <unistd.h>
27#include <features.h>
28#include <sys/types.h>
29/* Kernel headers before 2.1.mumble need this on the Alpha to get
30 _syscall* defined. */
31#define __LIBRARY__
32#include <sys/syscall.h>
33#include "grp_.h"
34
35int setgroups(size_t size, const gid_t * list)
36{
37 return(syscall(__NR_setgroups, size, list));
38}
39
40
diff --git a/libpwdgrp/shadow.c b/libpwdgrp/shadow.c
deleted file mode 100644
index b3a4901f5..000000000
--- a/libpwdgrp/shadow.c
+++ /dev/null
@@ -1,300 +0,0 @@
1/* vi: set sw=4 ts=4: */
2/*
3 * Copyright 1989 - 1994, Julianne Frances Haugh
4 * <jockgrrl@austin.rr.com>, <jfh@austin.ibm.com>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of Julianne F. Haugh nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY JULIE HAUGH AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL JULIE HAUGH OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32/* TODO: fgetspent_r.c getspent_r.c getspnam_r.c sgetspent_r.c
33 * lckpwdf ulckpwdf
34 */
35
36#include <stdio.h>
37#include <stdlib.h>
38#include <string.h>
39#include <unistd.h>
40
41#include "busybox.h"
42#include "shadow_.h"
43
44static FILE *shadow;
45static char spwbuf[BUFSIZ];
46static struct spwd spwd;
47
48#define FIELDS 9
49#define OFIELDS 5
50
51/* setspent - initialize access to shadow text and DBM files */
52void setspent(void)
53{
54 if (shadow) {
55 rewind(shadow);
56 } else {
57 shadow = bb_xfopen(bb_path_shadow_file, "r");
58 }
59}
60
61/* endspent - terminate access to shadow text and DBM files */
62void endspent(void)
63{
64 if (shadow)
65 (void) fclose(shadow);
66 shadow = (FILE *) 0;
67}
68
69/* getspent - get a (struct spwd *) from the current shadow file */
70struct spwd *getspent(void)
71{
72 if (!shadow)
73 setspent();
74 return (fgetspent(shadow));
75}
76
77/* getspnam - get a shadow entry by name */
78struct spwd *getspnam(const char *name)
79{
80 struct spwd *sp;
81
82 if (!name || !strlen(name))
83 return NULL;
84
85 setspent();
86 while ((sp = getspent()) != NULL) {
87 if (strcmp(name, sp->sp_namp) == 0)
88 break;
89 }
90 endspent();
91 return (sp);
92}
93
94
95/* sgetspent - convert string in shadow file format to (struct spwd *) */
96/* returns NULL on error */
97struct spwd *sgetspent(const char *string)
98{
99 char *fields[FIELDS];
100 char *cp;
101 char *cpp;
102 int i;
103
104 /*
105 * Copy string to local buffer. It has to be tokenized and we
106 * have to do that to our private copy.
107 */
108
109 if (strlen(string) >= sizeof spwbuf)
110 /* return 0; */
111 return NULL;
112 strcpy(spwbuf, string);
113
114 if ((cp = strrchr(spwbuf, '\n')))
115 *cp = '\0';
116
117 /*
118 * Tokenize the string into colon separated fields. Allow up to
119 * FIELDS different fields.
120 */
121
122 for (cp = spwbuf, i = 0; *cp && i < FIELDS; i++) {
123 fields[i] = cp;
124 while (*cp && *cp != ':')
125 cp++;
126
127 if (*cp)
128 *cp++ = '\0';
129 }
130
131 /*
132 * It is acceptable for the last SVR4 field to be blank. This
133 * results in the loop being terminated early. In which case,
134 * we just make the last field be blank and be done with it.
135 */
136
137 if (i == (FIELDS - 1))
138 fields[i++] = cp;
139
140 if ((cp && *cp) || (i != FIELDS && i != OFIELDS))
141 /* return 0; */
142 return NULL;
143
144 /*
145 * Start populating the structure. The fields are all in
146 * static storage, as is the structure we pass back. If we
147 * ever see a name with '+' as the first character, we try
148 * to turn on NIS processing.
149 */
150
151 spwd.sp_namp = fields[0];
152 spwd.sp_pwdp = fields[1];
153
154 /*
155 * Get the last changed date. For all of the integer fields,
156 * we check for proper format. It is an error to have an
157 * incorrectly formatted number, unless we are using NIS.
158 */
159
160 if ((spwd.sp_lstchg = strtol(fields[2], &cpp, 10)) == 0 && *cpp) {
161 /* return 0; */
162 return NULL;
163 } else if (fields[2][0] == '\0')
164 spwd.sp_lstchg = -1;
165
166 /*
167 * Get the minimum period between password changes.
168 */
169
170 if ((spwd.sp_min = strtol(fields[3], &cpp, 10)) == 0 && *cpp) {
171 /* return 0; */
172 return NULL;
173 } else if (fields[3][0] == '\0')
174 spwd.sp_min = -1;
175
176 /*
177 * Get the maximum number of days a password is valid.
178 */
179
180 if ((spwd.sp_max = strtol(fields[4], &cpp, 10)) == 0 && *cpp) {
181 /* return 0; */
182 return NULL;
183 } else if (fields[4][0] == '\0')
184 spwd.sp_max = -1;
185
186 /*
187 * If there are only OFIELDS fields (this is a SVR3.2 /etc/shadow
188 * formatted file), initialize the other field members to -1.
189 */
190
191 if (i == OFIELDS) {
192 spwd.sp_warn = spwd.sp_inact = spwd.sp_expire = spwd.sp_flag = -1;
193
194 return &spwd;
195 }
196
197 /*
198 * The rest of the fields are mandatory for SVR4, but optional
199 * for anything else. However, if one is present the others
200 * must be as well.
201 */
202
203 /*
204 * Get the number of days of password expiry warning.
205 */
206
207 if ((spwd.sp_warn = strtol(fields[5], &cpp, 10)) == 0 && *cpp) {
208 /* return 0; */
209 return NULL;
210 } else if (fields[5][0] == '\0')
211 spwd.sp_warn = -1;
212
213 /*
214 * Get the number of days of inactivity before an account is
215 * disabled.
216 */
217
218 if ((spwd.sp_inact = strtol(fields[6], &cpp, 10)) == 0 && *cpp) {
219 /* return 0; */
220 return NULL;
221 } else if (fields[6][0] == '\0')
222 spwd.sp_inact = -1;
223
224 /*
225 * Get the number of days after the epoch before the account is
226 * set to expire.
227 */
228
229 if ((spwd.sp_expire = strtol(fields[7], &cpp, 10)) == 0 && *cpp) {
230 /* return 0; */
231 return NULL;
232 } else if (fields[7][0] == '\0')
233 spwd.sp_expire = -1;
234
235 /*
236 * This field is reserved for future use. But it isn't supposed
237 * to have anything other than a valid integer in it.
238 */
239
240 if ((spwd.sp_flag = strtol(fields[8], &cpp, 10)) == 0 && *cpp) {
241 /* return 0; */
242 return NULL;
243 } else if (fields[8][0] == '\0')
244 spwd.sp_flag = -1;
245
246 return (&spwd);
247}
248
249/* fgetspent - get an entry from an /etc/shadow formatted stream */
250struct spwd *fgetspent(FILE *fp)
251{
252 char buf[BUFSIZ];
253 char *cp;
254
255 if (!fp)
256 /* return (0); */
257 return NULL;
258
259 if (fgets(buf, sizeof buf, fp) != (char *) 0) {
260 if ((cp = strchr(buf, '\n')))
261 *cp = '\0';
262 return (sgetspent(buf));
263 }
264 /* return 0; */
265 return NULL;
266}
267
268/*
269 * putspent - put a (struct spwd *) into the (FILE *) you provide.
270 *
271 * this was described in shadow_.h but not implemented, so here
272 * I go. -beppu
273 *
274 */
275int putspent(const struct spwd *sp, FILE *fp)
276{
277 int ret;
278
279 /* seek to end */
280 ret = fseek(fp, 0, SEEK_END);
281 if (ret == -1) {
282 /* return -1; */
283 return 1;
284 }
285
286 /* powered by fprintf */
287 fprintf(fp, "%s:%s:%ld:%ld:%ld:%ld:%ld:%ld:%s\n", sp->sp_namp, /* login name */
288 sp->sp_pwdp, /* encrypted password */
289 sp->sp_lstchg, /* date of last change */
290 sp->sp_min, /* minimum number of days between changes */
291 sp->sp_max, /* maximum number of days between changes */
292 sp->sp_warn, /* number of days of warning before password expires */
293 sp->sp_inact, /* number of days after password expires until
294 the account becomes unusable */
295 sp->sp_expire, /* days since 1/1/70 until account expires */
296 "");
297 return 0;
298}
299
300
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-04-10 15:13:23 +0000