2
* Copyright (C) Stefan Metzmacher 2007 <metze@samba.org>
6
* Redistribution and use in source and binary forms, with or without
7
* modification, are permitted provided that the following conditions
10
* 1. Redistributions of source code must retain the above copyright
11
* notice, this list of conditions and the following disclaimer.
13
* 2. Redistributions in binary form must reproduce the above copyright
14
* notice, this list of conditions and the following disclaimer in the
15
* documentation and/or other materials provided with the distribution.
17
* 3. Neither the name of the author nor the names of its contributors
18
* may be used to endorse or promote products derived from this software
19
* without specific prior written permission.
21
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
22
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
25
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36
#define NSS_WRAPPER_NOT_REPLACE
37
#include "../replace/replace.h"
38
#include "system/passwd.h"
39
#include "system/filesys.h"
41
#else /* _SAMBA_BUILD_ */
43
#error nss_wrapper_only_supported_in_samba_yet
51
/* not all systems have _r functions... */
52
#ifndef HAVE_GETPWNAM_R
53
#define getpwnam_r(name, pwdst, buf, buflen, pwdstp) ENOSYS
55
#ifndef HAVE_GETPWUID_R
56
#define getpwuid_r(uid, pwdst, buf, buflen, pwdstp) ENOSYS
58
#ifndef HAVE_GETPWENT_R
59
#define getpwent_r(pwdst, buf, buflen, pwdstp) ENOSYS
61
#ifndef HAVE_GETGRNAM_R
62
#define getgrnam_r(name, grdst, buf, buflen, grdstp) ENOSYS
64
#ifndef HAVE_GETGRUID_R
65
#define getgrgid_r(uid, grdst, buf, buflen, grdstp) ENOSYS
67
#ifndef HAVE_GETGRENT_R
68
#define getgrent_r(grdst, buf, buflen, grdstp) ENOSYS
71
/* LD_PRELOAD doesn't work yet, so REWRITE_CALLS is all we support
77
#define real_getpwnam getpwnam
78
#define real_getpwnam_r getpwnam_r
79
#define real_getpwuid getpwuid
80
#define real_getpwuid_r getpwuid_r
82
#define real_setpwent setpwent
83
#define real_getpwent getpwent
84
#define real_getpwent_r getpwent_r
85
#define real_endpwent endpwent
88
#define real_getgrlst getgrlst
89
#define real_getgrlst_r getgrlst_r
90
#define real_initgroups_dyn initgroups_dyn
92
#define real_initgroups initgroups
94
#define real_getgrnam getgrnam
95
#define real_getgrnam_r getgrnam_r
96
#define real_getgrgid getgrgid
97
#define real_getgrgid_r getgrgid_r
99
#define real_setgrent setgrent
100
#define real_getgrent getgrent
101
#define real_getgrent_r getgrent_r
102
#define real_endgrent endgrent
108
# define NWRAP_ERROR(args) DEBUG(0, args)
110
# define NWRAP_ERROR(args) printf args
113
#define NWRAP_ERROR(args)
118
# define NWRAP_DEBUG(args) DEBUG(0, args)
120
# define NWRAP_DEBUG(args) printf args
123
#define NWRAP_DEBUG(args)
128
# define NWRAP_VERBOSE(args) DEBUG(0, args)
130
# define NWRAP_VERBOSE(args) printf args
133
#define NWRAP_VERBOSE(args)
142
bool (*parse_line)(struct nwrap_cache *, char *line);
143
void (*unload)(struct nwrap_cache *);
147
struct nwrap_cache *cache;
154
struct nwrap_cache __nwrap_cache_pw;
155
struct nwrap_pw nwrap_pw_global;
157
static bool nwrap_pw_parse_line(struct nwrap_cache *nwrap, char *line);
158
static void nwrap_pw_unload(struct nwrap_cache *nwrap);
161
struct nwrap_cache *cache;
168
struct nwrap_cache __nwrap_cache_gr;
169
struct nwrap_gr nwrap_gr_global;
171
static bool nwrap_gr_parse_line(struct nwrap_cache *nwrap, char *line);
172
static void nwrap_gr_unload(struct nwrap_cache *nwrap);
174
static void nwrap_init(void)
176
static bool initialized;
178
if (initialized) return;
181
nwrap_pw_global.cache = &__nwrap_cache_pw;
183
nwrap_pw_global.cache->path = getenv("NSS_WRAPPER_PASSWD");
184
nwrap_pw_global.cache->fd = -1;
185
nwrap_pw_global.cache->private_data = &nwrap_pw_global;
186
nwrap_pw_global.cache->parse_line = nwrap_pw_parse_line;
187
nwrap_pw_global.cache->unload = nwrap_pw_unload;
189
nwrap_gr_global.cache = &__nwrap_cache_gr;
191
nwrap_gr_global.cache->path = getenv("NSS_WRAPPER_GROUP");
192
nwrap_gr_global.cache->fd = -1;
193
nwrap_gr_global.cache->private_data = &nwrap_gr_global;
194
nwrap_gr_global.cache->parse_line = nwrap_gr_parse_line;
195
nwrap_gr_global.cache->unload = nwrap_gr_unload;
198
static bool nwrap_enabled(void)
202
if (!nwrap_pw_global.cache->path) {
205
if (nwrap_pw_global.cache->path[0] == '\0') {
208
if (!nwrap_gr_global.cache->path) {
211
if (nwrap_gr_global.cache->path[0] == '\0') {
218
static bool nwrap_parse_file(struct nwrap_cache *nwrap)
224
if (nwrap->st.st_size == 0) {
225
NWRAP_DEBUG(("%s: size == 0\n",
230
if (nwrap->st.st_size > INT32_MAX) {
231
NWRAP_ERROR(("%s: size[%u] larger than INT32_MAX\n",
232
__location__, (unsigned)nwrap->st.st_size));
236
ret = lseek(nwrap->fd, 0, SEEK_SET);
238
NWRAP_ERROR(("%s: lseek - %d\n",__location__,ret));
242
buf = (uint8_t *)malloc(nwrap->st.st_size + 1);
244
NWRAP_ERROR(("%s: malloc failed\n",__location__));
248
ret = read(nwrap->fd, buf, nwrap->st.st_size);
249
if (ret != nwrap->st.st_size) {
250
NWRAP_ERROR(("%s: read(%u) gave %d\n",
251
__location__, (unsigned)nwrap->st.st_size, ret));
255
buf[nwrap->st.st_size] = '\0';
258
while (nline && nline[0]) {
266
e = strchr(line, '\n');
277
NWRAP_VERBOSE(("%s:'%s'\n",__location__, line));
279
if (strlen(line) == 0) {
283
ok = nwrap->parse_line(nwrap, line);
298
static void nwrap_cache_unload(struct nwrap_cache *nwrap)
300
nwrap->unload(nwrap);
302
if (nwrap->buf) free(nwrap->buf);
307
static void nwrap_cache_reload(struct nwrap_cache *nwrap)
312
bool retried = false;
316
nwrap->fd = open(nwrap->path, O_RDONLY);
318
NWRAP_ERROR(("%s: unable to open '%s' readonly %d:%s\n",
320
nwrap->path, nwrap->fd,
324
NWRAP_VERBOSE(("%s: open '%s'\n", __location__, nwrap->path));
327
ret = fstat(nwrap->fd, &st);
329
NWRAP_ERROR(("%s: fstat(%s) - %d:%s\n",
332
ret, strerror(errno)));
336
if (retried == false && st.st_nlink == 0) {
337
/* maybe someone has replaced the file... */
338
NWRAP_DEBUG(("%s: st_nlink == 0, reopen %s\n",
339
__location__, nwrap->path));
341
memset(&nwrap->st, 0, sizeof(nwrap->st));
347
if (st.st_mtime == nwrap->st.st_mtime) {
348
NWRAP_VERBOSE(("%s: st_mtime[%u] hasn't changed, skip reload\n",
349
__location__, (unsigned)st.st_mtime));
352
NWRAP_DEBUG(("%s: st_mtime has changed [%u] => [%u], start reload\n",
353
__location__, (unsigned)st.st_mtime,
354
(unsigned)nwrap->st.st_mtime));
358
nwrap_cache_unload(nwrap);
360
ok = nwrap_parse_file(nwrap);
362
NWRAP_ERROR(("%s: failed to reload %s\n",
363
__location__, nwrap->path));
364
nwrap_cache_unload(nwrap);
366
NWRAP_DEBUG(("%s: reloaded %s\n",
367
__location__, nwrap->path));
371
* the caller has to call nwrap_unload() on failure
373
static bool nwrap_pw_parse_line(struct nwrap_cache *nwrap, char *line)
375
struct nwrap_pw *nwrap_pw;
382
nwrap_pw = (struct nwrap_pw *)nwrap->private_data;
384
list_size = sizeof(*nwrap_pw->list) * (nwrap_pw->num+1);
385
pw = (struct passwd *)realloc(nwrap_pw->list, list_size);
387
NWRAP_ERROR(("%s:realloc(%u) failed\n",
388
__location__, list_size));
393
pw = &nwrap_pw->list[nwrap_pw->num];
400
NWRAP_ERROR(("%s:invalid line[%s]: '%s'\n",
401
__location__, line, c));
409
NWRAP_VERBOSE(("name[%s]\n", pw->pw_name));
414
NWRAP_ERROR(("%s:invalid line[%s]: '%s'\n",
415
__location__, line, c));
423
NWRAP_VERBOSE(("password[%s]\n", pw->pw_passwd));
428
NWRAP_ERROR(("%s:invalid line[%s]: '%s'\n",
429
__location__, line, c));
435
pw->pw_uid = (uid_t)strtoul(c, &e, 10);
437
NWRAP_ERROR(("%s:invalid line[%s]: '%s' - %s\n",
438
__location__, line, c, strerror(errno)));
442
NWRAP_ERROR(("%s:invalid line[%s]: '%s' - %s\n",
443
__location__, line, c, strerror(errno)));
447
NWRAP_ERROR(("%s:invalid line[%s]: '%s' - %s\n",
448
__location__, line, c, strerror(errno)));
453
NWRAP_VERBOSE(("uid[%u]\n", pw->pw_uid));
458
NWRAP_ERROR(("%s:invalid line[%s]: '%s'\n",
459
__location__, line, c));
465
pw->pw_gid = (gid_t)strtoul(c, &e, 10);
467
NWRAP_ERROR(("%s:invalid line[%s]: '%s' - %s\n",
468
__location__, line, c, strerror(errno)));
472
NWRAP_ERROR(("%s:invalid line[%s]: '%s' - %s\n",
473
__location__, line, c, strerror(errno)));
477
NWRAP_ERROR(("%s:invalid line[%s]: '%s' - %s\n",
478
__location__, line, c, strerror(errno)));
483
NWRAP_VERBOSE(("gid[%u]\n", pw->pw_gid));
488
NWRAP_ERROR(("%s:invalid line[%s]: '%s'\n",
489
__location__, line, c));
497
NWRAP_VERBOSE(("gecos[%s]\n", pw->pw_gecos));
502
NWRAP_ERROR(("%s:'%s'\n",__location__,c));
510
NWRAP_VERBOSE(("dir[%s]\n", pw->pw_dir));
514
NWRAP_VERBOSE(("shell[%s]\n", pw->pw_shell));
516
NWRAP_DEBUG(("add user[%s:%s:%u:%u:%s:%s:%s]\n",
517
pw->pw_name, pw->pw_passwd,
518
pw->pw_uid, pw->pw_gid,
519
pw->pw_gecos, pw->pw_dir, pw->pw_shell));
525
static void nwrap_pw_unload(struct nwrap_cache *nwrap)
527
struct nwrap_pw *nwrap_pw;
528
nwrap_pw = (struct nwrap_pw *)nwrap->private_data;
530
if (nwrap_pw->list) free(nwrap_pw->list);
532
nwrap_pw->list = NULL;
537
static int nwrap_pw_copy_r(const struct passwd *src, struct passwd *dst,
538
char *buf, size_t buflen, struct passwd **dstp)
544
first = src->pw_name;
546
last = src->pw_shell;
547
while (*last) last++;
549
ofs = PTR_DIFF(last + 1, first);
555
memcpy(buf, first, ofs);
557
ofs = PTR_DIFF(src->pw_name, first);
558
dst->pw_name = buf + ofs;
559
ofs = PTR_DIFF(src->pw_passwd, first);
560
dst->pw_passwd = buf + ofs;
561
dst->pw_uid = src->pw_uid;
562
dst->pw_gid = src->pw_gid;
563
ofs = PTR_DIFF(src->pw_gecos, first);
564
dst->pw_gecos = buf + ofs;
565
ofs = PTR_DIFF(src->pw_dir, first);
566
dst->pw_dir = buf + ofs;
567
ofs = PTR_DIFF(src->pw_shell, first);
568
dst->pw_shell = buf + ofs;
578
* the caller has to call nwrap_unload() on failure
580
static bool nwrap_gr_parse_line(struct nwrap_cache *nwrap, char *line)
582
struct nwrap_gr *nwrap_gr;
590
nwrap_gr = (struct nwrap_gr *)nwrap->private_data;
592
list_size = sizeof(*nwrap_gr->list) * (nwrap_gr->num+1);
593
gr = (struct group *)realloc(nwrap_gr->list, list_size);
595
NWRAP_ERROR(("%s:realloc failed\n",__location__));
600
gr = &nwrap_gr->list[nwrap_gr->num];
607
NWRAP_ERROR(("%s:invalid line[%s]: '%s'\n",
608
__location__, line, c));
616
NWRAP_VERBOSE(("name[%s]\n", gr->gr_name));
621
NWRAP_ERROR(("%s:invalid line[%s]: '%s'\n",
622
__location__, line, c));
630
NWRAP_VERBOSE(("password[%s]\n", gr->gr_passwd));
635
NWRAP_ERROR(("%s:invalid line[%s]: '%s'\n",
636
__location__, line, c));
642
gr->gr_gid = (gid_t)strtoul(c, &e, 10);
644
NWRAP_ERROR(("%s:invalid line[%s]: '%s' - %s\n",
645
__location__, line, c, strerror(errno)));
649
NWRAP_ERROR(("%s:invalid line[%s]: '%s' - %s\n",
650
__location__, line, c, strerror(errno)));
654
NWRAP_ERROR(("%s:invalid line[%s]: '%s' - %s\n",
655
__location__, line, c, strerror(errno)));
660
NWRAP_VERBOSE(("gid[%u]\n", gr->gr_gid));
663
gr->gr_mem = (char **)malloc(sizeof(char *));
665
NWRAP_ERROR(("%s:calloc failed\n",__location__));
668
gr->gr_mem[0] = NULL;
670
for(nummem=0; p; nummem++) {
680
if (strlen(c) == 0) {
684
m_size = sizeof(char *) * (nummem+2);
685
m = (char **)realloc(gr->gr_mem, m_size);
687
NWRAP_ERROR(("%s:realloc(%u) failed\n",
688
__location__, m_size));
692
gr->gr_mem[nummem] = c;
693
gr->gr_mem[nummem+1] = NULL;
695
NWRAP_VERBOSE(("member[%u]: '%s'\n", nummem, gr->gr_mem[nummem]));
698
NWRAP_DEBUG(("add group[%s:%s:%u:] with %u members\n",
699
gr->gr_name, gr->gr_passwd, gr->gr_gid, nummem));
705
static void nwrap_gr_unload(struct nwrap_cache *nwrap)
708
struct nwrap_gr *nwrap_gr;
709
nwrap_gr = (struct nwrap_gr *)nwrap->private_data;
711
if (nwrap_gr->list) {
712
for (i=0; i < nwrap_gr->num; i++) {
713
if (nwrap_gr->list[i].gr_mem) {
714
free(nwrap_gr->list[i].gr_mem);
717
free(nwrap_gr->list);
720
nwrap_gr->list = NULL;
725
static int nwrap_gr_copy_r(const struct group *src, struct group *dst,
726
char *buf, size_t buflen, struct group **dstp)
736
first = src->gr_name;
739
while (*lastm) lastm++;
742
while (*last) last++;
744
ofsb = PTR_DIFF(last + 1, first);
745
ofsm = PTR_DIFF(lastm + 1, src->gr_mem);
747
if ((ofsb + ofsm) > buflen) {
751
memcpy(buf, first, ofsb);
752
memcpy(buf + ofsb, src->gr_mem, ofsm);
754
ofs = PTR_DIFF(src->gr_name, first);
755
dst->gr_name = buf + ofs;
756
ofs = PTR_DIFF(src->gr_passwd, first);
757
dst->gr_passwd = buf + ofs;
758
dst->gr_gid = src->gr_gid;
760
dst->gr_mem = (char **)(buf + ofsb);
761
for (i=0; src->gr_mem[i]; i++) {
762
ofs = PTR_DIFF(src->gr_mem[i], first);
763
dst->gr_mem[i] = buf + ofs;
775
static struct passwd *nwrap_files_getpwnam(const char *name)
779
nwrap_cache_reload(nwrap_pw_global.cache);
781
for (i=0; i<nwrap_pw_global.num; i++) {
782
if (strcmp(nwrap_pw_global.list[i].pw_name, name) == 0) {
783
NWRAP_DEBUG(("%s: user[%s] found\n",
784
__location__, name));
785
return &nwrap_pw_global.list[i];
787
NWRAP_VERBOSE(("%s: user[%s] does not match [%s]\n",
789
nwrap_pw_global.list[i].pw_name));
792
NWRAP_DEBUG(("%s: user[%s] not found\n", __location__, name));
798
_PUBLIC_ struct passwd *nwrap_getpwnam(const char *name)
800
if (!nwrap_enabled()) {
801
return real_getpwnam(name);
804
return nwrap_files_getpwnam(name);
807
static int nwrap_files_getpwnam_r(const char *name, struct passwd *pwdst,
808
char *buf, size_t buflen, struct passwd **pwdstp)
812
pw = nwrap_getpwnam(name);
820
return nwrap_pw_copy_r(pw, pwdst, buf, buflen, pwdstp);
823
_PUBLIC_ int nwrap_getpwnam_r(const char *name, struct passwd *pwdst,
824
char *buf, size_t buflen, struct passwd **pwdstp)
826
if (!nwrap_enabled()) {
827
return real_getpwnam_r(name, pwdst, buf, buflen, pwdstp);
830
return nwrap_files_getpwnam_r(name, pwdst, buf, buflen, pwdstp);
833
static struct passwd *nwrap_files_getpwuid(uid_t uid)
837
nwrap_cache_reload(nwrap_pw_global.cache);
839
for (i=0; i<nwrap_pw_global.num; i++) {
840
if (nwrap_pw_global.list[i].pw_uid == uid) {
841
NWRAP_DEBUG(("%s: uid[%u] found\n",
843
return &nwrap_pw_global.list[i];
845
NWRAP_VERBOSE(("%s: uid[%u] does not match [%u]\n",
847
nwrap_pw_global.list[i].pw_uid));
850
NWRAP_DEBUG(("%s: uid[%u] not found\n", __location__, uid));
856
_PUBLIC_ struct passwd *nwrap_getpwuid(uid_t uid)
858
if (!nwrap_enabled()) {
859
return real_getpwuid(uid);
862
return nwrap_files_getpwuid(uid);
865
static int nwrap_files_getpwuid_r(uid_t uid, struct passwd *pwdst,
866
char *buf, size_t buflen, struct passwd **pwdstp)
870
pw = nwrap_getpwuid(uid);
878
return nwrap_pw_copy_r(pw, pwdst, buf, buflen, pwdstp);
881
_PUBLIC_ int nwrap_getpwuid_r(uid_t uid, struct passwd *pwdst,
882
char *buf, size_t buflen, struct passwd **pwdstp)
884
if (!nwrap_enabled()) {
885
return real_getpwuid_r(uid, pwdst, buf, buflen, pwdstp);
888
return nwrap_files_getpwuid_r(uid, pwdst, buf, buflen, pwdstp);
891
/* user enum functions */
892
static void nwrap_files_setpwent(void)
894
nwrap_pw_global.idx = 0;
897
_PUBLIC_ void nwrap_setpwent(void)
899
if (!nwrap_enabled()) {
903
nwrap_files_setpwent();
906
static struct passwd *nwrap_files_getpwent(void)
910
if (nwrap_pw_global.idx == 0) {
911
nwrap_cache_reload(nwrap_pw_global.cache);
914
if (nwrap_pw_global.idx >= nwrap_pw_global.num) {
919
pw = &nwrap_pw_global.list[nwrap_pw_global.idx++];
921
NWRAP_VERBOSE(("%s: return user[%s] uid[%u]\n",
922
__location__, pw->pw_name, pw->pw_uid));
927
_PUBLIC_ struct passwd *nwrap_getpwent(void)
929
if (!nwrap_enabled()) {
930
return real_getpwent();
933
return nwrap_files_getpwent();
936
static int nwrap_files_getpwent_r(struct passwd *pwdst, char *buf,
937
size_t buflen, struct passwd **pwdstp)
941
pw = nwrap_getpwent();
949
return nwrap_pw_copy_r(pw, pwdst, buf, buflen, pwdstp);
952
_PUBLIC_ int nwrap_getpwent_r(struct passwd *pwdst, char *buf,
953
size_t buflen, struct passwd **pwdstp)
955
if (!nwrap_enabled()) {
956
#ifdef SOLARIS_GETPWENT_R
958
pw = real_getpwent_r(pwdst, buf, buflen);
970
return real_getpwent_r(pwdst, buf, buflen, pwdstp);
974
return nwrap_files_getpwent_r(pwdst, buf, buflen, pwdstp);
977
static void nwrap_files_endpwent(void)
979
nwrap_pw_global.idx = 0;
982
_PUBLIC_ void nwrap_endpwent(void)
984
if (!nwrap_enabled()) {
988
nwrap_files_endpwent();
992
static int nwrap_files_initgroups(const char *user, gid_t group)
994
/* TODO: maybe we should also fake this... */
998
_PUBLIC_ int nwrap_initgroups(const char *user, gid_t group)
1000
if (!nwrap_enabled()) {
1001
return real_initgroups(user, group);
1004
return nwrap_files_initgroups(user, group);
1007
/* group functions */
1008
static struct group *nwrap_files_getgrnam(const char *name)
1012
nwrap_cache_reload(nwrap_gr_global.cache);
1014
for (i=0; i<nwrap_gr_global.num; i++) {
1015
if (strcmp(nwrap_gr_global.list[i].gr_name, name) == 0) {
1016
NWRAP_DEBUG(("%s: group[%s] found\n",
1017
__location__, name));
1018
return &nwrap_gr_global.list[i];
1020
NWRAP_VERBOSE(("%s: group[%s] does not match [%s]\n",
1022
nwrap_gr_global.list[i].gr_name));
1025
NWRAP_DEBUG(("%s: group[%s] not found\n", __location__, name));
1031
_PUBLIC_ struct group *nwrap_getgrnam(const char *name)
1033
if (!nwrap_enabled()) {
1034
return real_getgrnam(name);
1037
return nwrap_files_getgrnam(name);
1040
static int nwrap_files_getgrnam_r(const char *name, struct group *grdst,
1041
char *buf, size_t buflen, struct group **grdstp)
1045
gr = nwrap_getgrnam(name);
1053
return nwrap_gr_copy_r(gr, grdst, buf, buflen, grdstp);
1056
_PUBLIC_ int nwrap_getgrnam_r(const char *name, struct group *grdst,
1057
char *buf, size_t buflen, struct group **grdstp)
1059
if (!nwrap_enabled()) {
1060
return real_getgrnam_r(name, grdst, buf, buflen, grdstp);
1063
return nwrap_files_getgrnam_r(name, grdst, buf, buflen, grdstp);
1066
static struct group *nwrap_files_getgrgid(gid_t gid)
1070
nwrap_cache_reload(nwrap_gr_global.cache);
1072
for (i=0; i<nwrap_gr_global.num; i++) {
1073
if (nwrap_gr_global.list[i].gr_gid == gid) {
1074
NWRAP_DEBUG(("%s: gid[%u] found\n",
1075
__location__, gid));
1076
return &nwrap_gr_global.list[i];
1078
NWRAP_VERBOSE(("%s: gid[%u] does not match [%u]\n",
1080
nwrap_gr_global.list[i].gr_gid));
1083
NWRAP_DEBUG(("%s: gid[%u] not found\n", __location__, gid));
1089
_PUBLIC_ struct group *nwrap_getgrgid(gid_t gid)
1091
if (!nwrap_enabled()) {
1092
return real_getgrgid(gid);
1095
return nwrap_files_getgrgid(gid);
1098
static int nwrap_files_getgrgid_r(gid_t gid, struct group *grdst,
1099
char *buf, size_t buflen, struct group **grdstp)
1103
gr = nwrap_getgrgid(gid);
1111
return nwrap_gr_copy_r(gr, grdst, buf, buflen, grdstp);
1116
_PUBLIC_ int nwrap_getgrgid_r(gid_t gid, struct group *grdst,
1117
char *buf, size_t buflen, struct group **grdstp)
1119
if (!nwrap_enabled()) {
1120
return real_getgrgid_r(gid, grdst, buf, buflen, grdstp);
1123
return nwrap_files_getgrgid_r(gid, grdst, buf, buflen, grdstp);
1126
/* group enum functions */
1127
static void nwrap_files_setgrent(void)
1129
nwrap_gr_global.idx = 0;
1132
_PUBLIC_ void nwrap_setgrent(void)
1134
if (!nwrap_enabled()) {
1138
nwrap_files_setgrent();
1141
static struct group *nwrap_files_getgrent(void)
1145
if (nwrap_gr_global.idx == 0) {
1146
nwrap_cache_reload(nwrap_gr_global.cache);
1149
if (nwrap_gr_global.idx >= nwrap_gr_global.num) {
1154
gr = &nwrap_gr_global.list[nwrap_gr_global.idx++];
1156
NWRAP_VERBOSE(("%s: return group[%s] gid[%u]\n",
1157
__location__, gr->gr_name, gr->gr_gid));
1162
_PUBLIC_ struct group *nwrap_getgrent(void)
1164
if (!nwrap_enabled()) {
1165
return real_getgrent();
1168
return nwrap_files_getgrent();
1171
static int nwrap_files_getgrent_r(struct group *grdst, char *buf,
1172
size_t buflen, struct group **grdstp)
1176
gr = nwrap_getgrent();
1184
return nwrap_gr_copy_r(gr, grdst, buf, buflen, grdstp);
1187
_PUBLIC_ int nwrap_getgrent_r(struct group *grdst, char *buf,
1188
size_t buflen, struct group **grdstp)
1190
if (!nwrap_enabled()) {
1191
#ifdef SOLARIS_GETGRENT_R
1193
gr = real_getgrent_r(grdst, buf, buflen);
1205
return real_getgrent_r(grdst, buf, buflen, grdstp);
1209
return nwrap_files_getgrent_r(grdst, buf, buflen, grdstp);
1212
static void nwrap_files_endgrent(void)
1214
nwrap_gr_global.idx = 0;
1217
_PUBLIC_ void nwrap_endgrent(void)
1219
if (!nwrap_enabled()) {
1223
nwrap_files_endgrent();