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-rw-r--r--lib/nss_wrapper/nss_wrapper.c345
1 files changed, 332 insertions, 13 deletions
diff --git a/lib/nss_wrapper/nss_wrapper.c b/lib/nss_wrapper/nss_wrapper.c
index 0e02e05cc3..4f98b68096 100644
--- a/lib/nss_wrapper/nss_wrapper.c
+++ b/lib/nss_wrapper/nss_wrapper.c
@@ -1376,102 +1376,421 @@ static void nwrap_files_endgrent(struct nwrap_backend *b)
* module backend
*/
+#ifndef SAFE_FREE
+#define SAFE_FREE(x) do { if ((x) != NULL) {free(x); (x)=NULL;} } while(0)
+#endif
+
static struct passwd *nwrap_module_getpwnam(struct nwrap_backend *b,
const char *name)
{
- return NULL;
+ static struct passwd pwd;
+ static char buf[1000];
+ NSS_STATUS status;
+
+ if (!b->fns->_nss_getpwnam_r) {
+ return NULL;
+ }
+
+ status = b->fns->_nss_getpwnam_r(name, &pwd, buf, sizeof(buf), &errno);
+ if (status == NSS_STATUS_NOTFOUND) {
+ return NULL;
+ }
+ if (status != NSS_STATUS_SUCCESS) {
+ return NULL;
+ }
+ return &pwd;
}
static int nwrap_module_getpwnam_r(struct nwrap_backend *b,
const char *name, struct passwd *pwdst,
char *buf, size_t buflen, struct passwd **pwdstp)
{
- return ENOENT;
+ int ret;
+
+ if (!b->fns->_nss_getpwnam_r) {
+ return NSS_STATUS_NOTFOUND;
+ }
+
+ ret = b->fns->_nss_getpwnam_r(name, pwdst, buf, buflen, &errno);
+ switch (ret) {
+ case NSS_STATUS_SUCCESS:
+ return 0;
+ case NSS_STATUS_NOTFOUND:
+ if (errno != 0) {
+ return errno;
+ }
+ return ENOENT;
+ case NSS_STATUS_TRYAGAIN:
+ if (errno != 0) {
+ return errno;
+ }
+ return ERANGE;
+ default:
+ if (errno != 0) {
+ return errno;
+ }
+ return ret;
+ }
}
static struct passwd *nwrap_module_getpwuid(struct nwrap_backend *b,
uid_t uid)
{
- return NULL;
+ static struct passwd pwd;
+ static char buf[1000];
+ NSS_STATUS status;
+
+ if (!b->fns->_nss_getpwuid_r) {
+ return NULL;
+ }
+
+ status = b->fns->_nss_getpwuid_r(uid, &pwd, buf, sizeof(buf), &errno);
+ if (status == NSS_STATUS_NOTFOUND) {
+ return NULL;
+ }
+ if (status != NSS_STATUS_SUCCESS) {
+ return NULL;
+ }
+ return &pwd;
}
static int nwrap_module_getpwuid_r(struct nwrap_backend *b,
uid_t uid, struct passwd *pwdst,
char *buf, size_t buflen, struct passwd **pwdstp)
{
- return ENOENT;
+ int ret;
+
+ if (!b->fns->_nss_getpwuid_r) {
+ return ENOENT;
+ }
+
+ ret = b->fns->_nss_getpwuid_r(uid, pwdst, buf, buflen, &errno);
+ switch (ret) {
+ case NSS_STATUS_SUCCESS:
+ return 0;
+ case NSS_STATUS_NOTFOUND:
+ if (errno != 0) {
+ return errno;
+ }
+ return ENOENT;
+ case NSS_STATUS_TRYAGAIN:
+ if (errno != 0) {
+ return errno;
+ }
+ return ERANGE;
+ default:
+ if (errno != 0) {
+ return errno;
+ }
+ return ret;
+ }
}
static void nwrap_module_setpwent(struct nwrap_backend *b)
{
+ if (!b->fns->_nss_setpwent) {
+ return;
+ }
+
+ b->fns->_nss_setpwent();
}
static struct passwd *nwrap_module_getpwent(struct nwrap_backend *b)
{
- return NULL;
+ static struct passwd pwd;
+ static char buf[1000];
+ NSS_STATUS status;
+
+ if (!b->fns->_nss_getpwent_r) {
+ return NULL;
+ }
+
+ status = b->fns->_nss_getpwent_r(&pwd, buf, sizeof(buf), &errno);
+ if (status == NSS_STATUS_NOTFOUND) {
+ return NULL;
+ }
+ if (status != NSS_STATUS_SUCCESS) {
+ return NULL;
+ }
+ return &pwd;
}
static int nwrap_module_getpwent_r(struct nwrap_backend *b,
struct passwd *pwdst, char *buf,
size_t buflen, struct passwd **pwdstp)
{
- return ENOENT;
+ int ret;
+
+ if (!b->fns->_nss_getpwent_r) {
+ return ENOENT;
+ }
+
+ ret = b->fns->_nss_getpwent_r(pwdst, buf, buflen, &errno);
+ switch (ret) {
+ case NSS_STATUS_SUCCESS:
+ return 0;
+ case NSS_STATUS_NOTFOUND:
+ if (errno != 0) {
+ return errno;
+ }
+ return ENOENT;
+ case NSS_STATUS_TRYAGAIN:
+ if (errno != 0) {
+ return errno;
+ }
+ return ERANGE;
+ default:
+ if (errno != 0) {
+ return errno;
+ }
+ return ret;
+ }
}
static void nwrap_module_endpwent(struct nwrap_backend *b)
{
+ if (!b->fns->_nss_endpwent) {
+ return;
+ }
+
+ b->fns->_nss_endpwent();
}
static int nwrap_module_initgroups(struct nwrap_backend *b,
const char *user, gid_t group)
{
- return -1;
+ gid_t *groups;
+ long int start;
+ long int size;
+
+ if (!b->fns->_nss_initgroups) {
+ return NSS_STATUS_UNAVAIL;
+ }
+
+ return b->fns->_nss_initgroups(user, group, &start, &size, &groups, 0, &errno);
}
static struct group *nwrap_module_getgrnam(struct nwrap_backend *b,
const char *name)
{
- return NULL;
+ static struct group grp;
+ static char *buf;
+ static int buflen = 1000;
+ NSS_STATUS status;
+
+ if (!b->fns->_nss_getgrnam_r) {
+ return NULL;
+ }
+
+ if (!buf) {
+ buf = (char *)malloc(buflen);
+ }
+again:
+ status = b->fns->_nss_getgrnam_r(name, &grp, buf, buflen, &errno);
+ if (status == NSS_STATUS_TRYAGAIN) {
+ buflen *= 2;
+ buf = (char *)realloc(buf, buflen);
+ if (!buf) {
+ return NULL;
+ }
+ goto again;
+ }
+ if (status == NSS_STATUS_NOTFOUND) {
+ SAFE_FREE(buf);
+ return NULL;
+ }
+ if (status != NSS_STATUS_SUCCESS) {
+ SAFE_FREE(buf);
+ return NULL;
+ }
+ return &grp;
}
static int nwrap_module_getgrnam_r(struct nwrap_backend *b,
const char *name, struct group *grdst,
char *buf, size_t buflen, struct group **grdstp)
{
- return ENOENT;
+ int ret;
+
+ if (!b->fns->_nss_getgrnam_r) {
+ return ENOENT;
+ }
+
+ ret = b->fns->_nss_getgrnam_r(name, grdst, buf, buflen, &errno);
+ switch (ret) {
+ case NSS_STATUS_SUCCESS:
+ return 0;
+ case NSS_STATUS_NOTFOUND:
+ if (errno != 0) {
+ return errno;
+ }
+ return ENOENT;
+ case NSS_STATUS_TRYAGAIN:
+ if (errno != 0) {
+ return errno;
+ }
+ return ERANGE;
+ default:
+ if (errno != 0) {
+ return errno;
+ }
+ return ret;
+ }
}
static struct group *nwrap_module_getgrgid(struct nwrap_backend *b,
gid_t gid)
{
- return NULL;
+ static struct group grp;
+ static char *buf;
+ static int buflen = 1000;
+ NSS_STATUS status;
+
+ if (!b->fns->_nss_getgrgid_r) {
+ return NULL;
+ }
+
+ if (!buf) {
+ buf = (char *)malloc(buflen);
+ }
+
+again:
+ status = b->fns->_nss_getgrgid_r(gid, &grp, buf, buflen, &errno);
+ if (status == NSS_STATUS_TRYAGAIN) {
+ buflen *= 2;
+ buf = (char *)realloc(buf, buflen);
+ if (!buf) {
+ return NULL;
+ }
+ goto again;
+ }
+ if (status == NSS_STATUS_NOTFOUND) {
+ SAFE_FREE(buf);
+ return NULL;
+ }
+ if (status != NSS_STATUS_SUCCESS) {
+ SAFE_FREE(buf);
+ return NULL;
+ }
+ return &grp;
}
static int nwrap_module_getgrgid_r(struct nwrap_backend *b,
gid_t gid, struct group *grdst,
char *buf, size_t buflen, struct group **grdstp)
{
- return ENOENT;
+ int ret;
+
+ if (!b->fns->_nss_getgrgid_r) {
+ return ENOENT;
+ }
+
+ ret = b->fns->_nss_getgrgid_r(gid, grdst, buf, buflen, &errno);
+ switch (ret) {
+ case NSS_STATUS_SUCCESS:
+ return 0;
+ case NSS_STATUS_NOTFOUND:
+ if (errno != 0) {
+ return errno;
+ }
+ return ENOENT;
+ case NSS_STATUS_TRYAGAIN:
+ if (errno != 0) {
+ return errno;
+ }
+ return ERANGE;
+ default:
+ if (errno != 0) {
+ return errno;
+ }
+ return ret;
+ }
}
static void nwrap_module_setgrent(struct nwrap_backend *b)
{
+ if (!b->fns->_nss_setgrent) {
+ return;
+ }
+
+ b->fns->_nss_setgrent();
}
static struct group *nwrap_module_getgrent(struct nwrap_backend *b)
{
- return NULL;
+ static struct group grp;
+ static char *buf;
+ static int buflen = 1024;
+ NSS_STATUS status;
+
+ if (!b->fns->_nss_getgrent_r) {
+ return NULL;
+ }
+
+ if (!buf) {
+ buf = (char *)malloc(buflen);
+ }
+
+again:
+ status = b->fns->_nss_getgrent_r(&grp, buf, buflen, &errno);
+ if (status == NSS_STATUS_TRYAGAIN) {
+ buflen *= 2;
+ buf = (char *)realloc(buf, buflen);
+ if (!buf) {
+ return NULL;
+ }
+ goto again;
+ }
+ if (status == NSS_STATUS_NOTFOUND) {
+ SAFE_FREE(buf);
+ return NULL;
+ }
+ if (status != NSS_STATUS_SUCCESS) {
+ SAFE_FREE(buf);
+ return NULL;
+ }
+ return &grp;
}
static int nwrap_module_getgrent_r(struct nwrap_backend *b,
struct group *grdst, char *buf,
size_t buflen, struct group **grdstp)
{
- return 0;
+ int ret;
+
+ if (!b->fns->_nss_getgrent_r) {
+ return ENOENT;
+ }
+
+ ret = b->fns->_nss_getgrent_r(grdst, buf, buflen, &errno);
+ switch (ret) {
+ case NSS_STATUS_SUCCESS:
+ return 0;
+ case NSS_STATUS_NOTFOUND:
+ if (errno != 0) {
+ return errno;
+ }
+ return ENOENT;
+ case NSS_STATUS_TRYAGAIN:
+ if (errno != 0) {
+ return errno;
+ }
+ return ERANGE;
+ default:
+ if (errno != 0) {
+ return errno;
+ }
+ return ret;
+ }
}
static void nwrap_module_endgrent(struct nwrap_backend *b)
{
+ if (!b->fns->_nss_endgrent) {
+ return;
+ }
+
+ b->fns->_nss_endgrent();
}
/*
generated by cgit (git 2.34.1) at 2024-11-22 14:32:46 +0000