77 lines
2.0 KiB
C
77 lines
2.0 KiB
C
/* Copyright (c) 1993 UNIX System Laboratories, Inc. */
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/* All Rights Reserved */
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/* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF */
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/* UNIX System Laboratories, Inc. */
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/* The copyright notice above does not evidence any */
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/* actual or intended publication of such source code. */
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/* copyright "%c%" */
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#ident "@(#)acct:common/cmd/acct/accton.c 1.11.3.4"
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#ident "$Header: /proj/irix6.5.7m/isms/eoe/cmd/acct/RCS/accton.c,v 1.6 1996/06/14 19:52:13 rdb Exp $"
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/*
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* accton - calls syscall with super-user privileges
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*/
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/param.h>
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#include "acctdef.h"
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#include <errno.h>
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#include <sys/stat.h>
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#include <pwd.h>
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#include <grp.h>
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uid_t admuid;
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gid_t admgid;
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struct passwd *pwd;
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struct group *grp;
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void ckfile(char *);
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main(int argc, char **argv)
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{
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register uid_t uid;
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uid = getuid();
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if ((pwd = getpwnam("adm")) == NULL)
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perror("cannot determine adm's uid"), exit(1);
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admuid = pwd->pw_uid;
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if ((grp = getgrnam("adm")) == NULL)
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perror("cannot determine adm's gid"), exit(1);
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admgid = grp->gr_gid;
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if(uid == ROOT || uid == admuid) {
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if(setuid(ROOT) == ERR)
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perror("cannot setuid (check command mode and owner)"), exit(1);
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if (argv[1])
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ckfile(argv[1]);
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if (acct(argc > 1 ? argv[1] : 0) < 0)
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perror(argv[1]), exit(1);
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exit(0);
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}
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fprintf(stderr,"%s: permission denied\n", argv[0]);
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exit(1);
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}
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void
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ckfile(char *admfile)
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{
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struct stat stbuf;
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register struct stat *s = &stbuf;
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if(stat(admfile, s) == ERR)
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if(creat(admfile, S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH) == ERR)
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perror("creat"), exit(1);
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if(s->st_uid != admuid || s->st_gid != admgid)
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if(chown(admfile, admuid, admgid) == ERR)
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perror("cannot change owner"), exit(1);
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/* was if(s->st_mode & 0777 != 0664) */
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if((s->st_mode & S_IAMB) != S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH)
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if(chmod(admfile, S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH) == ERR)
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perror("cannot chmod"), exit(1);
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}
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