diff options
Diffstat (limited to 'source4/lib/nss_wrapper/nss_wrapper.c')
| -rw-r--r-- | source4/lib/nss_wrapper/nss_wrapper.c | 1130 |
1 files changed, 0 insertions, 1130 deletions
diff --git a/source4/lib/nss_wrapper/nss_wrapper.c b/source4/lib/nss_wrapper/nss_wrapper.c deleted file mode 100644 index 5bf7ebda4f..0000000000 --- a/source4/lib/nss_wrapper/nss_wrapper.c +++ /dev/null @@ -1,1130 +0,0 @@ -/* - * Copyright (C) Stefan Metzmacher 2007 <metze@samba.org> - * - * 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 the author 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 THE AUTHOR 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 THE AUTHOR 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. - */ - -#ifdef _SAMBA_BUILD_ - -#define NSS_WRAPPER_NOT_REPLACE -#include "lib/replace/replace.h" -#include "system/passwd.h" -#include "system/filesys.h" - -#else /* _SAMBA_BUILD_ */ - -#error nss_wrapper_only_supported_in_samba_yet - -#endif - -#ifndef _PUBLIC_ -#define _PUBLIC_ -#endif - -/* not all systems have _r functions... */ -#ifndef HAVE_GETPWNAM_R -#define getpwnam_r(name, pwdst, buf, buflen, pwdstp) ENOSYS -#endif -#ifndef HAVE_GETPWUID_R -#define getpwuid_r(uid, pwdst, buf, buflen, pwdstp) ENOSYS -#endif -#ifndef HAVE_GETPWENT_R -#define getpwent_r(pwdst, buf, buflen, pwdstp) ENOSYS -#endif -#ifndef HAVE_GETGRNAM_R -#define getgrnam_r(name, grdst, buf, buflen, grdstp) ENOSYS -#endif -#ifndef HAVE_GETGRUID_R -#define getgrgid_r(uid, grdst, buf, buflen, grdstp) ENOSYS -#endif -#ifndef HAVE_GETGRENT_R -#define getgrent_r(grdst, buf, buflen, grdstp) ENOSYS -#endif - -/* LD_PRELOAD doesn't work yet, so REWRITE_CALLS is all we support - * for now */ -#define REWRITE_CALLS - -#ifdef REWRITE_CALLS - -#define real_getpwnam getpwnam -#define real_getpwnam_r getpwnam_r -#define real_getpwuid getpwuid -#define real_getpwuid_r getpwuid_r - -#define real_setpwent setpwent -#define real_getpwent getpwent -#define real_getpwent_r getpwent_r -#define real_endpwent endpwent - -/* -#define real_getgrlst getgrlst -#define real_getgrlst_r getgrlst_r -#define real_initgroups_dyn initgroups_dyn -*/ -#define real_initgroups initgroups - -#define real_getgrnam getgrnam -#define real_getgrnam_r getgrnam_r -#define real_getgrgid getgrgid -#define real_getgrgid_r getgrgid_r - -#define real_setgrent setgrent -#define real_getgrent getgrent -#define real_getgrent_r getgrent_r -#define real_endgrent endgrent - -#endif - -#if 0 -# ifdef DEBUG -# define NWRAP_ERROR(args) DEBUG(0, args) -# else -# define NWRAP_ERROR(args) printf args -# endif -#else -#define NWRAP_ERROR(args) -#endif - -#if 0 -# ifdef DEBUG -# define NWRAP_DEBUG(args) DEBUG(0, args) -# else -# define NWRAP_DEBUG(args) printf args -# endif -#else -#define NWRAP_DEBUG(args) -#endif - -#if 0 -# ifdef DEBUG -# define NWRAP_VERBOSE(args) DEBUG(0, args) -# else -# define NWRAP_VERBOSE(args) printf args -# endif -#else -#define NWRAP_VERBOSE(args) -#endif - -struct nwrap_cache { - const char *path; - int fd; - struct stat st; - uint8_t *buf; - void *private_data; - bool (*parse_line)(struct nwrap_cache *, char *line); - void (*unload)(struct nwrap_cache *); -}; - -struct nwrap_pw { - struct nwrap_cache *cache; - - struct passwd *list; - int num; - int idx; -}; - -struct nwrap_cache __nwrap_cache_pw; -struct nwrap_pw nwrap_pw_global; - -static bool nwrap_pw_parse_line(struct nwrap_cache *nwrap, char *line); -static void nwrap_pw_unload(struct nwrap_cache *nwrap); - -struct nwrap_gr { - struct nwrap_cache *cache; - - struct group *list; - int num; - int idx; -}; - -struct nwrap_cache __nwrap_cache_gr; -struct nwrap_gr nwrap_gr_global; - -static bool nwrap_gr_parse_line(struct nwrap_cache *nwrap, char *line); -static void nwrap_gr_unload(struct nwrap_cache *nwrap); - -static void nwrap_init(void) -{ - static bool initialized; - - if (initialized) return; - initialized = true; - - nwrap_pw_global.cache = &__nwrap_cache_pw; - - nwrap_pw_global.cache->path = getenv("NSS_WRAPPER_PASSWD"); - nwrap_pw_global.cache->fd = -1; - nwrap_pw_global.cache->private_data = &nwrap_pw_global; - nwrap_pw_global.cache->parse_line = nwrap_pw_parse_line; - nwrap_pw_global.cache->unload = nwrap_pw_unload; - - nwrap_gr_global.cache = &__nwrap_cache_gr; - - nwrap_gr_global.cache->path = getenv("NSS_WRAPPER_GROUP"); - nwrap_gr_global.cache->fd = -1; - nwrap_gr_global.cache->private_data = &nwrap_gr_global; - nwrap_gr_global.cache->parse_line = nwrap_gr_parse_line; - nwrap_gr_global.cache->unload = nwrap_gr_unload; -} - -static bool nwrap_enabled(void) -{ - nwrap_init(); - - if (!nwrap_pw_global.cache->path) { - return false; - } - if (nwrap_pw_global.cache->path[0] == '\0') { - return false; - } - if (!nwrap_gr_global.cache->path) { - return false; - } - if (nwrap_gr_global.cache->path[0] == '\0') { - return false; - } - - return true; -} - -static bool nwrap_parse_file(struct nwrap_cache *nwrap) -{ - int ret; - uint8_t *buf = NULL; - char *nline; - - if (nwrap->st.st_size == 0) { - NWRAP_DEBUG(("%s: size == 0\n", - __location__)); - goto done; - } - - if (nwrap->st.st_size > INT32_MAX) { - NWRAP_ERROR(("%s: size[%u] larger than INT32_MAX\n", - __location__, (unsigned)nwrap->st.st_size)); - goto failed; - } - - ret = lseek(nwrap->fd, 0, SEEK_SET); - if (ret != 0) { - NWRAP_ERROR(("%s: lseek - %d\n",__location__,ret)); - goto failed; - } - - buf = malloc(nwrap->st.st_size + 1); - if (!buf) { - NWRAP_ERROR(("%s: malloc failed\n",__location__)); - goto failed; - } - - ret = read(nwrap->fd, buf, nwrap->st.st_size); - if (ret != nwrap->st.st_size) { - NWRAP_ERROR(("%s: read(%u) gave %d\n", - __location__, (unsigned)nwrap->st.st_size, ret)); - goto failed; - } - - buf[nwrap->st.st_size] = '\0'; - - nline = (char *)buf; - while (nline && nline[0]) { - char *line; - char *e; - bool ok; - - line = nline; - nline = NULL; - - e = strchr(line, '\n'); - if (e) { - e[0] = '\0'; - e++; - if (e[0] == '\r') { - e[0] = '\0'; - e++; - } - nline = e; - } - - NWRAP_VERBOSE(("%s:'%s'\n",__location__, line)); - - if (strlen(line) == 0) { - continue; - } - - ok = nwrap->parse_line(nwrap, line); - if (!ok) { - goto failed; - } - } - -done: - nwrap->buf = buf; - return true; - -failed: - if (buf) free(buf); - return false; -} - -static void nwrap_cache_unload(struct nwrap_cache *nwrap) -{ - nwrap->unload(nwrap); - - if (nwrap->buf) free(nwrap->buf); - - nwrap->buf = NULL; -} - -static void nwrap_cache_reload(struct nwrap_cache *nwrap) -{ - struct stat st; - int ret; - bool ok; - bool retried = false; - -reopen: - if (nwrap->fd < 0) { - nwrap->fd = open(nwrap->path, O_RDONLY); - if (nwrap->fd < 0) { - NWRAP_ERROR(("%s: unable to open '%s' readonly %d:%s\n", - __location__, - nwrap->path, nwrap->fd, - strerror(errno))); - return; - } - NWRAP_VERBOSE(("%s: open '%s'\n", __location__, nwrap->path)); - } - - ret = fstat(nwrap->fd, &st); - if (ret != 0) { - NWRAP_ERROR(("%s: fstat(%s) - %d:%s\n", - __location__, - nwrap->path, - ret, strerror(errno))); - return; - } - - if (retried == false && st.st_nlink == 0) { - /* maybe someone has replaced the file... */ - NWRAP_DEBUG(("%s: st_nlink == 0, reopen %s\n", - __location__, nwrap->path)); - retried = true; - memset(&nwrap->st, 0, sizeof(nwrap->st)); - close(nwrap->fd); - nwrap->fd = -1; - goto reopen; - } - - if (st.st_mtime == nwrap->st.st_mtime) { - NWRAP_VERBOSE(("%s: st_mtime[%u] hasn't changed, skip reload\n", - __location__, (unsigned)st.st_mtime)); - return; - } - NWRAP_DEBUG(("%s: st_mtime has changed [%u] => [%u], start reload\n", - __location__, (unsigned)st.st_mtime, - (unsigned)nwrap->st.st_mtime)); - - nwrap->st = st; - - nwrap_cache_unload(nwrap); - - ok = nwrap_parse_file(nwrap); - if (!ok) { - NWRAP_ERROR(("%s: failed to reload %s\n", - __location__, nwrap->path)); - nwrap_cache_unload(nwrap); - } - NWRAP_DEBUG(("%s: reloaded %s\n", - __location__, nwrap->path)); -} - -/* - * the caller has to call nwrap_unload() on failure - */ -static bool nwrap_pw_parse_line(struct nwrap_cache *nwrap, char *line) -{ - struct nwrap_pw *nwrap_pw; - char *c; - char *p; - char *e; - struct passwd *pw; - size_t list_size; - - nwrap_pw = (struct nwrap_pw *)nwrap->private_data; - - list_size = sizeof(*nwrap_pw->list) * (nwrap_pw->num+1); - pw = (struct passwd *)realloc(nwrap_pw->list, list_size); - if (!pw) { - NWRAP_ERROR(("%s:realloc(%u) failed\n", - __location__, list_size)); - return false; - } - nwrap_pw->list = pw; - - pw = &nwrap_pw->list[nwrap_pw->num]; - - c = line; - - /* name */ - p = strchr(c, ':'); - if (!p) { - NWRAP_ERROR(("%s:invalid line[%s]: '%s'\n", - __location__, line, c)); - return false; - } - *p = '\0'; - p++; - pw->pw_name = c; - c = p; - - NWRAP_VERBOSE(("name[%s]\n", pw->pw_name)); - - /* password */ - p = strchr(c, ':'); - if (!p) { - NWRAP_ERROR(("%s:invalid line[%s]: '%s'\n", - __location__, line, c)); - return false; - } - *p = '\0'; - p++; - pw->pw_passwd = c; - c = p; - - NWRAP_VERBOSE(("password[%s]\n", pw->pw_passwd)); - - /* uid */ - p = strchr(c, ':'); - if (!p) { - NWRAP_ERROR(("%s:invalid line[%s]: '%s'\n", - __location__, line, c)); - return false; - } - *p = '\0'; - p++; - e = NULL; - pw->pw_uid = (uid_t)strtoul(c, &e, 10); - if (c == e) { - NWRAP_ERROR(("%s:invalid line[%s]: '%s' - %s\n", - __location__, line, c, strerror(errno))); - return false; - } - if (e == NULL) { - NWRAP_ERROR(("%s:invalid line[%s]: '%s' - %s\n", - __location__, line, c, strerror(errno))); - return false; - } - if (e[0] != '\0') { - NWRAP_ERROR(("%s:invalid line[%s]: '%s' - %s\n", - __location__, line, c, strerror(errno))); - return false; - } - c = p; - - NWRAP_VERBOSE(("uid[%u]\n", pw->pw_uid)); - - /* gid */ - p = strchr(c, ':'); - if (!p) { - NWRAP_ERROR(("%s:invalid line[%s]: '%s'\n", - __location__, line, c)); - return false; - } - *p = '\0'; - p++; - e = NULL; - pw->pw_gid = (gid_t)strtoul(c, &e, 10); - if (c == e) { - NWRAP_ERROR(("%s:invalid line[%s]: '%s' - %s\n", - __location__, line, c, strerror(errno))); - return false; - } - if (e == NULL) { - NWRAP_ERROR(("%s:invalid line[%s]: '%s' - %s\n", - __location__, line, c, strerror(errno))); - return false; - } - if (e[0] != '\0') { - NWRAP_ERROR(("%s:invalid line[%s]: '%s' - %s\n", - __location__, line, c, strerror(errno))); - return false; - } - c = p; - - NWRAP_VERBOSE(("gid[%u]\n", pw->pw_gid)); - - /* gecos */ - p = strchr(c, ':'); - if (!p) { - NWRAP_ERROR(("%s:invalid line[%s]: '%s'\n", - __location__, line, c)); - return false; - } - *p = '\0'; - p++; - pw->pw_gecos = c; - c = p; - - NWRAP_VERBOSE(("gecos[%s]\n", pw->pw_gecos)); - - /* dir */ - p = strchr(c, ':'); - if (!p) { - NWRAP_ERROR(("%s:'%s'\n",__location__,c)); - return false; - } - *p = '\0'; - p++; - pw->pw_dir = c; - c = p; - - NWRAP_VERBOSE(("dir[%s]\n", pw->pw_dir)); - - /* shell */ - pw->pw_shell = c; - NWRAP_VERBOSE(("shell[%s]\n", pw->pw_shell)); - - NWRAP_DEBUG(("add user[%s:%s:%u:%u:%s:%s:%s]\n", - pw->pw_name, pw->pw_passwd, - pw->pw_uid, pw->pw_gid, - pw->pw_gecos, pw->pw_dir, pw->pw_shell)); - - nwrap_pw->num++; - return true; -} - -static void nwrap_pw_unload(struct nwrap_cache *nwrap) -{ - struct nwrap_pw *nwrap_pw; - nwrap_pw = (struct nwrap_pw *)nwrap->private_data; - - if (nwrap_pw->list) free(nwrap_pw->list); - - nwrap_pw->list = NULL; - nwrap_pw->num = 0; - nwrap_pw->idx = 0; -} - -static int nwrap_pw_copy_r(const struct passwd *src, struct passwd *dst, - char *buf, size_t buflen, struct passwd **dstp) -{ - char *first; - char *last; - off_t ofs; - - first = src->pw_name; - - last = src->pw_shell; - while (*last) last++; - - ofs = PTR_DIFF(last + 1, first); - - if (ofs > buflen) { - return ERANGE; - } - - memcpy(buf, first, ofs); - - ofs = PTR_DIFF(src->pw_name, first); - dst->pw_name = buf + ofs; - ofs = PTR_DIFF(src->pw_passwd, first); - dst->pw_passwd = buf + ofs; - dst->pw_uid = src->pw_uid; - dst->pw_gid = src->pw_gid; - ofs = PTR_DIFF(src->pw_gecos, first); - dst->pw_gecos = buf + ofs; - ofs = PTR_DIFF(src->pw_dir, first); - dst->pw_dir = buf + ofs; - ofs = PTR_DIFF(src->pw_shell, first); - dst->pw_shell = buf + ofs; - - if (dstp) { - *dstp = dst; - } - - return 0; -} - -/* - * the caller has to call nwrap_unload() on failure - */ -static bool nwrap_gr_parse_line(struct nwrap_cache *nwrap, char *line) -{ - struct nwrap_gr *nwrap_gr; - char *c; - char *p; - char *e; - struct group *gr; - size_t list_size; - unsigned nummem; - - nwrap_gr = (struct nwrap_gr *)nwrap->private_data; - - list_size = sizeof(*nwrap_gr->list) * (nwrap_gr->num+1); - gr = (struct group *)realloc(nwrap_gr->list, list_size); - if (!gr) { - NWRAP_ERROR(("%s:realloc failed\n",__location__)); - return false; - } - nwrap_gr->list = gr; - - gr = &nwrap_gr->list[nwrap_gr->num]; - - c = line; - - /* name */ - p = strchr(c, ':'); - if (!p) { - NWRAP_ERROR(("%s:invalid line[%s]: '%s'\n", - __location__, line, c)); - return false; - } - *p = '\0'; - p++; - gr->gr_name = c; - c = p; - - NWRAP_VERBOSE(("name[%s]\n", gr->gr_name)); - - /* password */ - p = strchr(c, ':'); - if (!p) { - NWRAP_ERROR(("%s:invalid line[%s]: '%s'\n", - __location__, line, c)); - return false; - } - *p = '\0'; - p++; - gr->gr_passwd = c; - c = p; - - NWRAP_VERBOSE(("password[%s]\n", gr->gr_passwd)); - - /* gid */ - p = strchr(c, ':'); - if (!p) { - NWRAP_ERROR(("%s:invalid line[%s]: '%s'\n", - __location__, line, c)); - return false; - } - *p = '\0'; - p++; - e = NULL; - gr->gr_gid = (gid_t)strtoul(c, &e, 10); - if (c == e) { - NWRAP_ERROR(("%s:invalid line[%s]: '%s' - %s\n", - __location__, line, c, strerror(errno))); - return false; - } - if (e == NULL) { - NWRAP_ERROR(("%s:invalid line[%s]: '%s' - %s\n", - __location__, line, c, strerror(errno))); - return false; - } - if (e[0] != '\0') { - NWRAP_ERROR(("%s:invalid line[%s]: '%s' - %s\n", - __location__, line, c, strerror(errno))); - return false; - } - c = p; - - NWRAP_VERBOSE(("gid[%u]\n", gr->gr_gid)); - - /* members */ - gr->gr_mem = (char **)malloc(sizeof(char *)); - if (!gr->gr_mem) { - NWRAP_ERROR(("%s:calloc failed\n",__location__)); - return false; - } - gr->gr_mem[0] = NULL; - - for(nummem=0; p; nummem++) { - char **m; - size_t m_size; - c = p; - p = strchr(c, ','); - if (p) { - *p = '\0'; - p++; - } - - if (strlen(c) == 0) { - break; - } - - m_size = sizeof(char *) * (nummem+2); - m = (char **)realloc(gr->gr_mem, m_size); - if (!m) { - NWRAP_ERROR(("%s:realloc(%u) failed\n", - __location__, m_size)); - return false; - } - gr->gr_mem = m; - gr->gr_mem[nummem] = c; - gr->gr_mem[nummem+1] = NULL; - - NWRAP_VERBOSE(("member[%u]: '%s'\n", nummem, gr->gr_mem[nummem])); - } - - NWRAP_DEBUG(("add group[%s:%s:%u:] with %u members\n", - gr->gr_name, gr->gr_passwd, gr->gr_gid, nummem)); - - nwrap_gr->num++; - return true; -} - -static void nwrap_gr_unload(struct nwrap_cache *nwrap) -{ - int i; - struct nwrap_gr *nwrap_gr; - nwrap_gr = (struct nwrap_gr *)nwrap->private_data; - - if (nwrap_gr->list) { - for (i=0; i < nwrap_gr->num; i++) { - if (nwrap_gr->list[i].gr_mem) { - free(nwrap_gr->list[i].gr_mem); - } - } - free(nwrap_gr->list); - } - - nwrap_gr->list = NULL; - nwrap_gr->num = 0; - nwrap_gr->idx = 0; -} - -static int nwrap_gr_copy_r(const struct group *src, struct group *dst, - char *buf, size_t buflen, struct group **dstp) -{ - char *first; - char **lastm; - char *last; - off_t ofsb; - off_t ofsm; - off_t ofs; - unsigned i; - - first = src->gr_name; - - lastm = src->gr_mem; - while (*lastm) lastm++; - - last = *lastm; - while (*last) last++; - - ofsb = PTR_DIFF(last + 1, first); - ofsm = PTR_DIFF(lastm + 1, src->gr_mem); - - if ((ofsb + ofsm) > buflen) { - return ERANGE; - } - - memcpy(buf, first, ofsb); - memcpy(buf + ofsb, src->gr_mem, ofsm); - - ofs = PTR_DIFF(src->gr_name, first); - dst->gr_name = buf + ofs; - ofs = PTR_DIFF(src->gr_passwd, first); - dst->gr_passwd = buf + ofs; - dst->gr_gid = src->gr_gid; - - dst->gr_mem = (char **)(buf + ofsb); - for (i=0; src->gr_mem[i]; i++) { - ofs = PTR_DIFF(src->gr_mem[i], first); - dst->gr_mem[i] = buf + ofs; - } - - if (dstp) { - *dstp = dst; - } - - return 0; -} - -/* user functions */ -_PUBLIC_ struct passwd *nwrap_getpwnam(const char *name) -{ - int i; - - if (!nwrap_enabled()) { - return real_getpwnam(name); - } - - nwrap_cache_reload(nwrap_pw_global.cache); - - for (i=0; i<nwrap_pw_global.num; i++) { - if (strcmp(nwrap_pw_global.list[i].pw_name, name) == 0) { - NWRAP_DEBUG(("%s: user[%s] found\n", - __location__, name)); - return &nwrap_pw_global.list[i]; - } - NWRAP_VERBOSE(("%s: user[%s] does not match [%s]\n", - __location__, name, - nwrap_pw_global.list[i].pw_name)); - } - - NWRAP_DEBUG(("%s: user[%s] not found\n", __location__, name)); - - errno = ENOENT; - return NULL; -} - -_PUBLIC_ int nwrap_getpwnam_r(const char *name, struct passwd *pwdst, - char *buf, size_t buflen, struct passwd **pwdstp) -{ - struct passwd *pw; - - if (!nwrap_enabled()) { - return real_getpwnam_r(name, pwdst, buf, buflen, pwdstp); - } - - pw = nwrap_getpwnam(name); - if (!pw) { - if (errno == 0) { - return ENOENT; - } - return errno; - } - - return nwrap_pw_copy_r(pw, pwdst, buf, buflen, pwdstp); -} - -_PUBLIC_ struct passwd *nwrap_getpwuid(uid_t uid) -{ - int i; - - if (!nwrap_enabled()) { - return real_getpwuid(uid); - } - - nwrap_cache_reload(nwrap_pw_global.cache); - - for (i=0; i<nwrap_pw_global.num; i++) { - if (nwrap_pw_global.list[i].pw_uid == uid) { - NWRAP_DEBUG(("%s: uid[%u] found\n", - __location__, uid)); - return &nwrap_pw_global.list[i]; - } - NWRAP_VERBOSE(("%s: uid[%u] does not match [%u]\n", - __location__, uid, - nwrap_pw_global.list[i].pw_uid)); - } - - NWRAP_DEBUG(("%s: uid[%u] not found\n", __location__, uid)); - - errno = ENOENT; - return NULL; -} - -_PUBLIC_ int nwrap_getpwuid_r(uid_t uid, struct passwd *pwdst, - char *buf, size_t buflen, struct passwd **pwdstp) -{ - struct passwd *pw; - - if (!nwrap_enabled()) { - return real_getpwuid_r(uid, pwdst, buf, buflen, pwdstp); - } - - pw = nwrap_getpwuid(uid); - if (!pw) { - if (errno == 0) { - return ENOENT; - } - return errno; - } - - return nwrap_pw_copy_r(pw, pwdst, buf, buflen, pwdstp); -} - -/* user enum functions */ -_PUBLIC_ void nwrap_setpwent(void) -{ - if (!nwrap_enabled()) { - real_setpwent(); - } - - nwrap_pw_global.idx = 0; -} - -_PUBLIC_ struct passwd *nwrap_getpwent(void) -{ - struct passwd *pw; - - if (!nwrap_enabled()) { - return real_getpwent(); - } - - if (nwrap_pw_global.idx == 0) { - nwrap_cache_reload(nwrap_pw_global.cache); - } - - if (nwrap_pw_global.idx >= nwrap_pw_global.num) { - errno = ENOENT; - return NULL; - } - - pw = &nwrap_pw_global.list[nwrap_pw_global.idx++]; - - NWRAP_VERBOSE(("%s: return user[%s] uid[%u]\n", - __location__, pw->pw_name, pw->pw_uid)); - - return pw; -} - -_PUBLIC_ int nwrap_getpwent_r(struct passwd *pwdst, char *buf, - size_t buflen, struct passwd **pwdstp) -{ - struct passwd *pw; - - if (!nwrap_enabled()) { -#ifdef SOLARIS_GETPWENT_R - pw = real_getpwent_r(pwdst, buf, buflen); - if (!pw) { - if (errno == 0) { - return ENOENT; - } - return errno; - } - if (pwdstp) { - *pwdstp = pw; - } - return 0; -#else - return real_getpwent_r(pwdst, buf, buflen, pwdstp); -#endif - } - - pw = nwrap_getpwent(); - if (!pw) { - if (errno == 0) { - return ENOENT; - } - return errno; - } - - return nwrap_pw_copy_r(pw, pwdst, buf, buflen, pwdstp); -} - -_PUBLIC_ void nwrap_endpwent(void) -{ - if (!nwrap_enabled()) { - real_endpwent(); - } - - nwrap_pw_global.idx = 0; -} - -/* misc functions */ -_PUBLIC_ int nwrap_initgroups(const char *user, gid_t group) -{ - if (!nwrap_enabled()) { - return real_initgroups(user, group); - } - - /* TODO: maybe we should also fake this... */ - return EPERM; -} - -/* group functions */ -_PUBLIC_ struct group *nwrap_getgrnam(const char *name) -{ - int i; - - if (!nwrap_enabled()) { - return real_getgrnam(name); - } - - nwrap_cache_reload(nwrap_gr_global.cache); - - for (i=0; i<nwrap_gr_global.num; i++) { - if (strcmp(nwrap_gr_global.list[i].gr_name, name) == 0) { - NWRAP_DEBUG(("%s: group[%s] found\n", - __location__, name)); - return &nwrap_gr_global.list[i]; - } - NWRAP_VERBOSE(("%s: group[%s] does not match [%s]\n", - __location__, name, - nwrap_gr_global.list[i].gr_name)); - } - - NWRAP_DEBUG(("%s: group[%s] not found\n", __location__, name)); - - errno = ENOENT; - return NULL; -} - -_PUBLIC_ int nwrap_getgrnam_r(const char *name, struct group *grdst, - char *buf, size_t buflen, struct group **grdstp) -{ - struct group *gr; - - if (!nwrap_enabled()) { - return real_getgrnam_r(name, grdst, buf, buflen, grdstp); - } - - gr = nwrap_getgrnam(name); - if (!gr) { - if (errno == 0) { - return ENOENT; - } - return errno; - } - - return nwrap_gr_copy_r(gr, grdst, buf, buflen, grdstp); -} - -_PUBLIC_ struct group *nwrap_getgrgid(gid_t gid) -{ - int i; - - if (!nwrap_enabled()) { - return real_getgrgid(gid); - } - - nwrap_cache_reload(nwrap_gr_global.cache); - - for (i=0; i<nwrap_gr_global.num; i++) { - if (nwrap_gr_global.list[i].gr_gid == gid) { - NWRAP_DEBUG(("%s: gid[%u] found\n", - __location__, gid)); - return &nwrap_gr_global.list[i]; - } - NWRAP_VERBOSE(("%s: gid[%u] does not match [%u]\n", - __location__, gid, - nwrap_gr_global.list[i].gr_gid)); - } - - NWRAP_DEBUG(("%s: gid[%u] not found\n", __location__, gid)); - - errno = ENOENT; - return NULL; -} - -_PUBLIC_ int nwrap_getgrgid_r(gid_t gid, struct group *grdst, - char *buf, size_t buflen, struct group **grdstp) -{ - struct group *gr; - - if (!nwrap_enabled()) { - return real_getgrgid_r(gid, grdst, buf, buflen, grdstp); - } - - gr = nwrap_getgrgid(gid); - if (!gr) { - if (errno == 0) { - return ENOENT; - } - return errno; - } - - return nwrap_gr_copy_r(gr, grdst, buf, buflen, grdstp); - - return ENOENT; -} - -/* group enum functions */ -_PUBLIC_ void nwrap_setgrent(void) -{ - if (!nwrap_enabled()) { - real_setgrent(); - } - - nwrap_gr_global.idx = 0; -} - -_PUBLIC_ struct group *nwrap_getgrent(void) -{ - struct group *gr; - - if (!nwrap_enabled()) { - return real_getgrent(); - } - - if (nwrap_gr_global.idx == 0) { - nwrap_cache_reload(nwrap_gr_global.cache); - } - - if (nwrap_gr_global.idx >= nwrap_gr_global.num) { - errno = ENOENT; - return NULL; - } - - gr = &nwrap_gr_global.list[nwrap_gr_global.idx++]; - - NWRAP_VERBOSE(("%s: return group[%s] gid[%u]\n", - __location__, gr->gr_name, gr->gr_gid)); - - return gr; -} - -_PUBLIC_ int nwrap_getgrent_r(struct group *grdst, char *buf, - size_t buflen, struct group **grdstp) -{ - struct group *gr; - - if (!nwrap_enabled()) { -#ifdef SOLARIS_GETGRENT_R - gr = real_getgrent_r(grdst, buf, buflen); - if (!gr) { - if (errno == 0) { - return ENOENT; - } - return errno; - } - if (grdstp) { - *grdstp = gr; - } - return 0; -#else - return real_getgrent_r(grdst, buf, buflen, grdstp); -#endif - } - - gr = nwrap_getgrent(); - if (!gr) { - if (errno == 0) { - return ENOENT; - } - return errno; - } - - return nwrap_gr_copy_r(gr, grdst, buf, buflen, grdstp); -} - -_PUBLIC_ void nwrap_endgrent(void) -{ - if (!nwrap_enabled()) { - real_endgrent(); - } - - nwrap_gr_global.idx = 0; -} |