id.c

/*
 * Copyright (c) 2017, [Ribose Inc](https://www.ribose.com).
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "common.h"
#include "id.h"

#include <unistd.h>

int RETRACE_IMPLEMENTATION(setuid)(uid_t uid)
{
	trace_printf(1, "setuid(%d);\n", uid);

	return real_setuid(uid);
}

RETRACE_REPLACE(setuid, int, (uid_t uid), (uid))

int RETRACE_IMPLEMENTATION(seteuid)(uid_t uid)
{
	trace_printf(1, "seteuid(%d);\n", uid);

	return real_seteuid(uid);
}

RETRACE_REPLACE(seteuid, int, (uid_t uid), (uid))

int RETRACE_IMPLEMENTATION(setgid)(gid_t gid)
{
	trace_printf(1, "setgid(%d);\n", gid);

	return real_setgid(gid);
}

RETRACE_REPLACE(setgid, int, (gid_t gid), (gid))

gid_t RETRACE_IMPLEMENTATION(getgid)()
{
	int gid;

	gid = real_getgid();

	trace_printf(1, "getgid(); [%d]\n", gid);

	return gid;
}

RETRACE_REPLACE(getgid, gid_t, (), ())

gid_t RETRACE_IMPLEMENTATION(getegid)()
{
	int egid;

	egid = real_getegid();

	trace_printf(1, "getegid(); [%d]\n", egid);

	return egid;
}

RETRACE_REPLACE(getegid, gid_t, (), ())

uid_t RETRACE_IMPLEMENTATION(getuid)()
{
	int redirect_id;
	int uid;

	if (rtr_get_config_single("getuid", ARGUMENT_TYPE_INT, ARGUMENT_TYPE_END, &redirect_id)) {
		trace_printf(1, "getuid(); [redirection in effect: '%i']\n", redirect_id);

		return redirect_id;
	}

	uid = real_getuid();

	trace_printf(1, "getuid(); [%d]\n", uid);

	return uid;
}

RETRACE_REPLACE(getuid, uid_t, (), ())

uid_t RETRACE_IMPLEMENTATION(geteuid)()
{
	int euid;
	int redirect_id;

	if (rtr_get_config_single("geteuid", ARGUMENT_TYPE_INT, ARGUMENT_TYPE_END, &redirect_id)) {
		trace_printf(1, "geteuid(); [redirection in effect: '%i']\n", redirect_id);

		return redirect_id;
	}

	euid = real_geteuid();

	trace_printf(1, "geteuid(); [%d]\n", euid);

	return euid;
}

RETRACE_REPLACE(geteuid, uid_t, (), ())

pid_t RETRACE_IMPLEMENTATION(getpid)()
{
	int pid;

	pid = real_getpid();

	trace_printf(1, "getpid(); [%d]\n", pid);

	return pid;
}

RETRACE_REPLACE(getpid, pid_t, (), ())

pid_t RETRACE_IMPLEMENTATION(getppid)()
{
	int ppid;

	ppid = real_getppid();

	trace_printf(1, "getppid(); [%d]\n", ppid);

	return ppid;
}

RETRACE_REPLACE(getppid, pid_t, (), ())