9fecb4e63f
The setreuid() page says seteuid is better !
146 lines
2.2 KiB
C
146 lines
2.2 KiB
C
/*
|
|
* $Id: id.c,v 1.1 1997/11/09 06:22:40 brian Exp $
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
|
|
#include <sys/ioctl.h>
|
|
#include <fcntl.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <sysexits.h>
|
|
#include <unistd.h>
|
|
|
|
#include "mbuf.h"
|
|
#include "log.h"
|
|
#include "main.h"
|
|
#ifdef __OpenBSD__
|
|
#include <util.h>
|
|
#else
|
|
#include <libutil.h>
|
|
#endif
|
|
#include "id.h"
|
|
|
|
static int uid;
|
|
static int gid;
|
|
static int euid;
|
|
static int egid;
|
|
|
|
void
|
|
ID0init()
|
|
{
|
|
uid = getuid();
|
|
gid = getgid();
|
|
euid = geteuid();
|
|
egid = getegid();
|
|
}
|
|
|
|
static void
|
|
ID0setuser()
|
|
{
|
|
if (seteuid(uid) == -1) {
|
|
LogPrintf(LogERROR, "ID0setuser: Unable to seteuid!\n");
|
|
Cleanup(EX_NOPERM);
|
|
}
|
|
}
|
|
|
|
uid_t
|
|
ID0realuid()
|
|
{
|
|
return uid;
|
|
}
|
|
|
|
static void
|
|
ID0set0()
|
|
{
|
|
if (seteuid(euid) == -1) {
|
|
LogPrintf(LogERROR, "ID0set0: Unable to seteuid!\n");
|
|
Cleanup(EX_NOPERM);
|
|
}
|
|
}
|
|
|
|
int
|
|
ID0ioctl(int fd, unsigned long req, void *arg)
|
|
{
|
|
int ret;
|
|
|
|
ID0set0();
|
|
ret = ioctl(fd, req, arg);
|
|
LogPrintf(LogID0, "%d = ioctl(%d, %d, %p)\n", ret, fd, req, arg);
|
|
ID0setuser();
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
ID0unlink(const char *name)
|
|
{
|
|
int ret;
|
|
|
|
ID0set0();
|
|
ret = unlink(name);
|
|
LogPrintf(LogID0, "%d = unlink(\"%s\")\n", ret, name);
|
|
ID0setuser();
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
ID0socket(int domain, int type, int protocol)
|
|
{
|
|
int ret;
|
|
|
|
ID0set0();
|
|
ret = socket(domain, type, protocol);
|
|
LogPrintf(LogID0, "%d = socket(%d, %d, %d)\n", ret, domain, type, protocol);
|
|
ID0setuser();
|
|
return ret;
|
|
}
|
|
|
|
FILE *
|
|
ID0fopen(const char *path, const char *mode)
|
|
{
|
|
FILE *ret;
|
|
|
|
ID0set0();
|
|
ret = fopen(path, mode);
|
|
LogPrintf(LogID0, "%p = fopen(\"%s\", \"%s\")\n", ret, path, mode);
|
|
ID0setuser();
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
ID0open(const char *path, int flags)
|
|
{
|
|
int ret;
|
|
|
|
ID0set0();
|
|
ret = open(path, flags);
|
|
LogPrintf(LogID0, "%d = open(\"%s\", %d)\n", ret, path, flags);
|
|
ID0setuser();
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
ID0uu_lock(const char *ttyname)
|
|
{
|
|
int ret;
|
|
|
|
ID0set0();
|
|
ret = uu_lock(ttyname);
|
|
LogPrintf(LogID0, "%d = uu_lock(\"%s\")\n", ret, ttyname);
|
|
ID0setuser();
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
ID0uu_unlock(const char *ttyname)
|
|
{
|
|
int ret;
|
|
|
|
ID0set0();
|
|
ret = uu_unlock(ttyname);
|
|
LogPrintf(LogID0, "%d = uu_unlock(\"%s\")\n", ret, ttyname);
|
|
ID0setuser();
|
|
return ret;
|
|
}
|