217 lines
3.9 KiB
C
217 lines
3.9 KiB
C
/*
|
|
* System configuration routines
|
|
*
|
|
* Written by Toshiharu OHNO (tony-o@iij.ad.jp)
|
|
*
|
|
* Copyright (C) 1993, Internet Initiative Japan, Inc. All rights reserverd.
|
|
*
|
|
* Redistribution and use in source and binary forms are permitted
|
|
* provided that the above copyright notice and this paragraph are
|
|
* duplicated in all such forms and that any documentation,
|
|
* advertising materials, and other materials related to such
|
|
* distribution and use acknowledge that the software was developed
|
|
* by the Internet Initiative Japan, Inc. The name of the
|
|
* IIJ may not be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
|
*
|
|
* $Id: systems.c,v 1.1.1.1 1995/01/31 06:29:55 amurai Exp $
|
|
*
|
|
* TODO:
|
|
*/
|
|
#include "fsm.h"
|
|
#include "vars.h"
|
|
#include "ipcp.h"
|
|
#include "pathnames.h"
|
|
|
|
extern void DecodeCommand();
|
|
|
|
static int uid, gid;
|
|
static int euid, egid;
|
|
static int usermode;
|
|
|
|
void
|
|
GetUid()
|
|
{
|
|
uid = getuid();
|
|
gid = getgid();
|
|
euid = geteuid();
|
|
egid = getegid();
|
|
usermode = 0;
|
|
}
|
|
|
|
static void
|
|
SetUserId()
|
|
{
|
|
if (!usermode) {
|
|
#ifdef __FreeBSD__
|
|
setruid(euid);
|
|
seteuid(uid);
|
|
setrgid(egid);
|
|
setegid(gid);
|
|
#else
|
|
setreuid(euid, uid);
|
|
setregid(egid, gid);
|
|
#endif
|
|
usermode = 1;
|
|
}
|
|
}
|
|
|
|
static void
|
|
SetPppId()
|
|
{
|
|
if (usermode) {
|
|
#ifdef __FreeBSD__
|
|
setruid(uid);
|
|
seteuid(euid);
|
|
setrgid(gid);
|
|
setegid(egid);
|
|
#else
|
|
setreuid(uid, euid);
|
|
setregid(gid, egid);
|
|
#endif
|
|
usermode = 0;
|
|
}
|
|
}
|
|
|
|
FILE *
|
|
OpenSecret(file)
|
|
char *file;
|
|
{
|
|
FILE *fp;
|
|
char *cp;
|
|
char line[100];
|
|
|
|
fp = NULL;
|
|
cp = getenv("HOME");
|
|
if (cp) {
|
|
SetUserId();
|
|
sprintf(line, "%s/.%s", cp, file);
|
|
fp = fopen(line, "r");
|
|
}
|
|
if (fp == NULL) {
|
|
SetPppId();
|
|
sprintf(line, "%s/%s", _PATH_PPP, file);
|
|
fp = fopen(line, "r");
|
|
}
|
|
if (fp == NULL) {
|
|
fprintf(stderr, "can't open %s.\n", line);
|
|
SetPppId();
|
|
return(NULL);
|
|
}
|
|
return(fp);
|
|
}
|
|
|
|
void
|
|
CloseSecret(fp)
|
|
FILE *fp;
|
|
{
|
|
fclose(fp);
|
|
SetPppId();
|
|
}
|
|
|
|
int
|
|
SelectSystem(name, file)
|
|
char *name;
|
|
char *file;
|
|
{
|
|
FILE *fp;
|
|
char *cp, *wp;
|
|
int n;
|
|
int val = -1;
|
|
char line[200];
|
|
|
|
fp = NULL;
|
|
cp = getenv("HOME");
|
|
if (cp) {
|
|
SetUserId();
|
|
sprintf(line, "%s/.%s", cp, file);
|
|
fp = fopen(line, "r");
|
|
}
|
|
if (fp == NULL) {
|
|
SetPppId(); /* fix from pdp@ark.jr3uom.iijnet.or.jp */
|
|
sprintf(line, "%s/%s", _PATH_PPP, file);
|
|
fp = fopen(line, "r");
|
|
}
|
|
if (fp == NULL) {
|
|
fprintf(stderr, "can't open %s.\n", line);
|
|
SetPppId();
|
|
return(-1);
|
|
}
|
|
#ifdef DEBUG
|
|
fprintf(stderr, "checking %s (%s).\n", name, line);
|
|
#endif
|
|
while (fgets(line, sizeof(line), fp)) {
|
|
cp = line;
|
|
switch (*cp) {
|
|
case '#': /* comment */
|
|
break;
|
|
case ' ':
|
|
case '\t':
|
|
break;
|
|
default:
|
|
wp = strpbrk(cp, ":\n");
|
|
*wp = '\0';
|
|
if (strcmp(cp, name) == 0) {
|
|
while (fgets(line, sizeof(line), fp)) {
|
|
cp = line;
|
|
if (*cp == ' ' || *cp == '\t') {
|
|
n = strspn(cp, " \t");
|
|
cp += n;
|
|
#ifdef DEBUG
|
|
fprintf(stderr, "%s", cp);
|
|
#endif
|
|
SetPppId();
|
|
DecodeCommand(cp, strlen(cp), 0);
|
|
SetUserId();
|
|
} else if (*cp == '#') {
|
|
continue;
|
|
} else
|
|
break;
|
|
}
|
|
fclose(fp);
|
|
SetPppId();
|
|
return(0);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
fclose(fp);
|
|
SetPppId();
|
|
return(val);
|
|
}
|
|
|
|
int
|
|
LoadCommand(list, argc, argv)
|
|
struct cmdtab *list;
|
|
int argc;
|
|
char **argv;
|
|
{
|
|
char *name;
|
|
|
|
if (argc > 0)
|
|
name = *argv;
|
|
else
|
|
name = "default";
|
|
|
|
if (SelectSystem(name, CONFFILE) < 0) {
|
|
printf("%s: not found.\n", name);
|
|
return(-1);
|
|
}
|
|
return(1);
|
|
}
|
|
|
|
extern struct in_addr ifnetmask;
|
|
|
|
int
|
|
SaveCommand(list, argc, argv)
|
|
struct cmdtab *list;
|
|
int argc;
|
|
char **argv;
|
|
{
|
|
printf("save command is not implemented (yet).\n");
|
|
return(1);
|
|
}
|