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127 lines
2.6 KiB
127 lines
2.6 KiB
/*
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* Copyright (C) 2007-2009 Sourcefire, Inc.
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*
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* Authors: Tomasz Kojm
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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*/
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#if HAVE_CONFIG_H
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#include "clamav-config.h"
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <errno.h>
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#ifdef HAVE_PWD_H
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#include <pwd.h>
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#endif
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#include <sys/types.h>
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#include <sys/stat.h>
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#ifndef _WIN32
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#include <sys/wait.h>
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#include <sys/time.h>
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#endif
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#include <time.h>
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#include <fcntl.h>
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#include <signal.h>
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#include <target.h>
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#include "shared/output.h"
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#include "others.h"
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int fileinfo(const char *filename, short i)
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{
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struct stat infostruct;
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if(stat(filename, &infostruct) == -1)
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return(-1);
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switch(i) {
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case 1: /* size */
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return infostruct.st_size;
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case 2: /* permissions */
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return (mode_t)infostruct.st_mode;
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case 3: /* modification time */
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return infostruct.st_mtime;
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case 4: /* UID */
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return infostruct.st_uid;
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case 5: /* GID */
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return infostruct.st_gid;
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default:
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logg("!fileinfo(): Unknown option.\n");
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exit(1);
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}
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}
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#ifdef _WIN32
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/* FIXME: Handle users correctly */
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int checkaccess(const char *path, const char *username, int mode)
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{
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return !_access(path, mode);
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}
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#else
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int checkaccess(const char *path, const char *username, int mode)
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{
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struct passwd *user;
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int ret = 0, status;
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if(!geteuid()) {
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if((user = getpwnam(username)) == NULL) {
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return -1;
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}
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switch(fork()) {
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case -1:
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return -2;
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case 0:
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if(setgid(user->pw_gid)) {
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fprintf(stderr, "ERROR: setgid(%d) failed.\n", (int) user->pw_gid);
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exit(0);
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}
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if(setuid(user->pw_uid)) {
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fprintf(stderr, "ERROR: setuid(%d) failed.\n", (int) user->pw_uid);
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exit(0);
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}
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if(access(path, mode))
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exit(0);
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else
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exit(1);
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default:
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wait(&status);
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if(WIFEXITED(status) && WEXITSTATUS(status) == 1)
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ret = 1;
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}
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} else {
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if(!access(path, mode))
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ret = 1;
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}
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return ret;
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}
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#endif
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