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-rw-r--r--src/openvpn/platform.h140
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diff --git a/src/openvpn/platform.h b/src/openvpn/platform.h
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+/*
+ * OpenVPN -- An application to securely tunnel IP networks
+ * over a single TCP/UDP port, with support for SSL/TLS-based
+ * session authentication and key exchange,
+ * packet encryption, packet authentication, and
+ * packet compression.
+ *
+ * Copyright (C) 2002-2010 OpenVPN Technologies, Inc. <sales@openvpn.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program (see the file COPYING included with this
+ * distribution); if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef PLATFORM_H
+#define PLATFORM_H
+
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+
+#ifdef HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#ifdef HAVE_PWD_H
+#include <pwd.h>
+#endif
+
+#ifdef HAVE_GRP_H
+#include <grp.h>
+#endif
+
+#ifdef HAVE_STDIO_H
+#include <stdio.h>
+#endif
+
+#include "basic.h"
+
+/* Get/Set UID of process */
+
+struct platform_state_user {
+#if defined(HAVE_GETPWNAM) && defined(HAVE_SETUID)
+ const char *username;
+ struct passwd *pw;
+#else
+ int dummy;
+#endif
+};
+
+/* Get/Set GID of process */
+
+struct platform_state_group {
+#if defined(HAVE_GETGRNAM) && defined(HAVE_SETGID)
+ const char *groupname;
+ struct group *gr;
+#else
+ int dummy;
+#endif
+};
+
+bool platform_user_get (const char *username, struct platform_state_user *state);
+void platform_user_set (const struct platform_state_user *state);
+
+bool platform_group_get (const char *groupname, struct platform_state_group *state);
+void platform_group_set (const struct platform_state_group *state);
+
+/*
+ * Extract UID or GID
+ */
+
+static inline int
+platform_state_user_uid (const struct platform_state_user *s)
+{
+#if defined(HAVE_GETPWNAM) && defined(HAVE_SETUID)
+ if (s->pw)
+ return s->pw->pw_uid;
+#endif
+ return -1;
+}
+
+static inline int
+platform_state_group_gid (const struct platform_state_group *s)
+{
+#if defined(HAVE_GETGRNAM) && defined(HAVE_SETGID)
+ if (s->gr)
+ return s->gr->gr_gid;
+#endif
+ return -1;
+}
+
+void platform_chroot (const char *path);
+
+void platform_nice (int niceval);
+
+unsigned int platform_getpid (void);
+
+void platform_mlockall (bool print_msg); /* Disable paging */
+
+int platform_chdir (const char* dir);
+
+/* interpret the status code returned by execve() */
+bool platform_system_ok (int stat);
+
+int platform_access (const char *path, int mode);
+
+void platform_sleep_milliseconds (unsigned int n);
+
+void platform_sleep_until_signal (void);
+
+/* delete a file, return true if succeeded */
+bool platform_unlink (const char *filename);
+
+int platform_putenv (char *string);
+
+FILE *platform_fopen (const char *path, const char *mode);
+int platform_open (const char *path, int flags, int mode);
+
+#ifdef WIN32
+typedef struct _stat platform_stat_t;
+#else
+typedef struct stat platform_stat_t;
+#endif
+int platform_stat (const char *path, platform_stat_t *buf);
+
+#endif