oval_fts.h

/*
 * Copyright 2010 Red Hat Inc., Durham, North Carolina.
 * All Rights Reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 *
 * Authors:
 *      "Daniel Kopecek" <dkopecek@redhat.com>
 */
#ifndef OVAL_FTS_H
#define OVAL_FTS_H
 
#include "oscap_platforms.h"
 
#include <sexp.h>
#if defined(OS_SOLARIS) || defined(OS_AIX)
#include "fts_sun.h"
#else
#include <fts.h>
#endif
#include <pcre.h>
#include "fsdev.h"
 
#define ENT_GET_AREF(ent, dst, attr_name, mandatory)                    \
        do {                                                            \
                if (((dst) = probe_ent_getattrval(ent, attr_name)) == NULL) { \
                        if (mandatory) {                                \
                                _F("Attribute `%s' is missing!\n", attr_name); \
                                return (NULL);                          \
                        }                                               \
                }                                                       \
        } while(0)
 
#define ENT_GET_STRVAL(ent, dst, dstlen, zerolen_exp)                   \
        do {                                                    \
                SEXP_t *___r;                                   \
                                                                \
                if ((___r = probe_ent_getval(ent)) == NULL) {   \
                        dW("entity has no value!");             \
                        return (NULL);                          \
                } else {                                        \
                        if (!SEXP_stringp(___r)) {              \
                                _F("invalid type\n");           \
                                SEXP_free(___r);                \
                                return (NULL);                  \
                        }                                       \
                        if (SEXP_string_length(___r) == 0) {    \
                                SEXP_free(___r);                \
                                zerolen_exp;                    \
                        } else {                                \
                                SEXP_string_cstr_r(___r, dst, dstlen); \
                                SEXP_free(___r);                \
                        }                                       \
                }                                               \
        } while (0)
 
typedef struct {
        /* oval_fts_read_match_path() state */
        FTS *ofts_match_path_fts;
        FTSENT *ofts_match_path_fts_ent;
        /* oval_fts_read_recurse_path() state */
        FTS *ofts_recurse_path_fts;
        int ofts_recurse_path_fts_opts;
        int ofts_recurse_path_curdepth;
        char *ofts_recurse_path_pthcpy;
        char *ofts_recurse_path_curpth;
        dev_t ofts_recurse_path_devid;
 
        pcre       *ofts_path_regex;
        pcre_extra *ofts_path_regex_extra;
        uint32_t ofts_path_op;
 
        SEXP_t *ofts_spath;
        SEXP_t *ofts_sfilename;
        SEXP_t *ofts_sfilepath;
        SEXP_t *result;
 
        int max_depth;
        int direction;
        int recurse;
        int filesystem;
        int following;
 
        fsdev_t *localdevs;
        const char *prefix;
} OVAL_FTS;
 
#define OVAL_RECURSE_DIRECTION_NONE 0 /* default */
#define OVAL_RECURSE_DIRECTION_DOWN 1
#define OVAL_RECURSE_DIRECTION_UP   2
 
#define OVAL_RECURSE_FILES    0x01
#define OVAL_RECURSE_DIRS     0x02
#define OVAL_RECURSE_SYMLINKS 0x04
 
#define OVAL_RECURSE_SYMLINKS_AND_DIRS (OVAL_RECURSE_SYMLINKS|OVAL_RECURSE_DIRS) /* default */
#define OVAL_RECURSE_FILES_AND_DIRS    (OVAL_RECURSE_FILES|OVAL_RECURSE_SYMLINKS)
 
#define OVAL_RECURSE_FS_LOCAL   0
#define OVAL_RECURSE_FS_DEFINED 1
#define OVAL_RECURSE_FS_ALL     2 /* default */
 
typedef struct {
        char *file;
        size_t file_len;
        char *path;
        size_t path_len;
        unsigned int fts_info;
} OVAL_FTSENT;
 
/*
 * OVAL FTS public API
 */
OVAL_FTS *oval_fts_open_prefixed(const char *prefix, SEXP_t *path, SEXP_t *filename, SEXP_t *filepath, SEXP_t *behaviors, SEXP_t* result);
OVAL_FTS *oval_fts_open(SEXP_t *path, SEXP_t *filename, SEXP_t *filepath, SEXP_t *behaviors, SEXP_t* result);
OVAL_FTSENT *oval_fts_read(OVAL_FTS *ofts);
int          oval_fts_close(OVAL_FTS *ofts);
 
void oval_ftsent_free(OVAL_FTSENT *ofts_ent);
 
#endif /* OVAL_FTS_H */