#include <config.h>
#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#include <unistd.h>
#include <ctype.h>
#include <grp.h>
#include <pwd.h>
#include <time.h>
#include "sudoers.h"
#include "parse.h"
#include "sudo_lbuf.h"
#include <gram.h>
struct sudo_file_handle {
FILE *fp;
struct sudoers_parse_tree parse_tree;
};
static int
sudo_file_close(struct sudo_nss *nss)
{
debug_decl(sudo_file_close, SUDOERS_DEBUG_NSS)
struct sudo_file_handle *handle = nss->handle;
if (handle != NULL) {
fclose(handle->fp);
sudoersin = NULL;
free_parse_tree(&handle->parse_tree);
free(handle);
nss->handle = NULL;
}
debug_return_int(0);
}
static int
sudo_file_open(struct sudo_nss *nss)
{
debug_decl(sudo_file_open, SUDOERS_DEBUG_NSS)
struct sudo_file_handle *handle;
if (def_ignore_local_sudoers)
debug_return_int(-1);
if (nss->handle != NULL) {
sudo_debug_printf(SUDO_DEBUG_ERROR,
"%s: called with non-NULL handle %p", __func__, nss->handle);
sudo_file_close(nss);
}
handle = malloc(sizeof(*handle));
if (handle != NULL) {
handle->fp = open_sudoers(sudoers_file, false, NULL);
if (handle->fp != NULL) {
init_parse_tree(&handle->parse_tree, NULL, NULL);
} else {
free(handle);
handle = NULL;
}
}
nss->handle = handle;
debug_return_int(nss->handle ? 0 : -1);
}
static struct sudoers_parse_tree *
sudo_file_parse(struct sudo_nss *nss)
{
debug_decl(sudo_file_close, SUDOERS_DEBUG_NSS)
struct sudo_file_handle *handle = nss->handle;
if (handle == NULL || handle->fp == NULL) {
sudo_debug_printf(SUDO_DEBUG_ERROR, "%s: called with NULL %s",
__func__, handle ? "file pointer" : "handle");
debug_return_ptr(NULL);
}
sudoersin = handle->fp;
if (sudoersparse() != 0 || parse_error) {
if (errorlineno != -1) {
log_warningx(SLOG_SEND_MAIL, N_("parse error in %s near line %d"),
errorfile, errorlineno);
} else {
log_warningx(SLOG_SEND_MAIL, N_("parse error in %s"), errorfile);
}
debug_return_ptr(NULL);
}
reparent_parse_tree(&handle->parse_tree);
debug_return_ptr(&handle->parse_tree);
}
static int
sudo_file_query(struct sudo_nss *nss, struct passwd *pw)
{
debug_decl(sudo_file_query, SUDOERS_DEBUG_NSS)
debug_return_int(0);
}
static int
sudo_file_getdefs(struct sudo_nss *nss)
{
debug_decl(sudo_file_getdefs, SUDOERS_DEBUG_NSS)
debug_return_int(0);
}
struct sudo_nss sudo_nss_file = {
{ NULL, NULL },
sudo_file_open,
sudo_file_close,
sudo_file_parse,
sudo_file_query,
sudo_file_getdefs
};