1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate *
4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate * with the License.
8*7c478bd9Sstevel@tonic-gate *
9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate *
14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate *
20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate */
22*7c478bd9Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
23*7c478bd9Sstevel@tonic-gate /* All Rights Reserved */
24*7c478bd9Sstevel@tonic-gate
25*7c478bd9Sstevel@tonic-gate
26*7c478bd9Sstevel@tonic-gate #ident "%Z%%M% %I% %E% SMI" /* from SVR4 bnu:strsave.c 1.5 */
27*7c478bd9Sstevel@tonic-gate
28*7c478bd9Sstevel@tonic-gate #include "uucp.h"
29*7c478bd9Sstevel@tonic-gate
30*7c478bd9Sstevel@tonic-gate /* #include <errno.h> */
31*7c478bd9Sstevel@tonic-gate /* #include <malloc.h> */
32*7c478bd9Sstevel@tonic-gate /* #include <string.h> */
33*7c478bd9Sstevel@tonic-gate /* #include <sys/types.h> */
34*7c478bd9Sstevel@tonic-gate /* #include <sys/stat.h> */
35*7c478bd9Sstevel@tonic-gate
36*7c478bd9Sstevel@tonic-gate /* copy str into data space -- caller should report errors. */
37*7c478bd9Sstevel@tonic-gate
38*7c478bd9Sstevel@tonic-gate GLOBAL char *
strsave(str)39*7c478bd9Sstevel@tonic-gate strsave(str)
40*7c478bd9Sstevel@tonic-gate register char *str;
41*7c478bd9Sstevel@tonic-gate {
42*7c478bd9Sstevel@tonic-gate register char *rval;
43*7c478bd9Sstevel@tonic-gate
44*7c478bd9Sstevel@tonic-gate rval = (char *)malloc(strlen(str) + 1);
45*7c478bd9Sstevel@tonic-gate if (rval != 0)
46*7c478bd9Sstevel@tonic-gate strcpy(rval, str);
47*7c478bd9Sstevel@tonic-gate return(rval);
48*7c478bd9Sstevel@tonic-gate }
49*7c478bd9Sstevel@tonic-gate
50*7c478bd9Sstevel@tonic-gate /* Determine if the effective user id has the appropriate permission
51*7c478bd9Sstevel@tonic-gate on a file. Modeled after access(2).
52*7c478bd9Sstevel@tonic-gate amode:
53*7c478bd9Sstevel@tonic-gate 00 just checks for file existence.
54*7c478bd9Sstevel@tonic-gate 04 checks read permission.
55*7c478bd9Sstevel@tonic-gate 02 checks write permission.
56*7c478bd9Sstevel@tonic-gate 01 checks execute/search permission.
57*7c478bd9Sstevel@tonic-gate other bits are ignored quietly.
58*7c478bd9Sstevel@tonic-gate */
59*7c478bd9Sstevel@tonic-gate
60*7c478bd9Sstevel@tonic-gate GLOBAL int
eaccess(path,amode)61*7c478bd9Sstevel@tonic-gate eaccess( path, amode )
62*7c478bd9Sstevel@tonic-gate char *path;
63*7c478bd9Sstevel@tonic-gate register mode_t amode;
64*7c478bd9Sstevel@tonic-gate {
65*7c478bd9Sstevel@tonic-gate struct stat s;
66*7c478bd9Sstevel@tonic-gate uid_t euid;
67*7c478bd9Sstevel@tonic-gate
68*7c478bd9Sstevel@tonic-gate if( stat( path, &s ) == -1 )
69*7c478bd9Sstevel@tonic-gate return(-1); /* can't stat file */
70*7c478bd9Sstevel@tonic-gate amode &= 07;
71*7c478bd9Sstevel@tonic-gate
72*7c478bd9Sstevel@tonic-gate if( (euid = geteuid()) == 0 )
73*7c478bd9Sstevel@tonic-gate return(0); /* root can do all */
74*7c478bd9Sstevel@tonic-gate if( euid == s.st_uid )
75*7c478bd9Sstevel@tonic-gate s.st_mode >>= 6; /* use owner bits */
76*7c478bd9Sstevel@tonic-gate else if( getegid() == s.st_gid )
77*7c478bd9Sstevel@tonic-gate s.st_mode >>= 3; /* use group bits */
78*7c478bd9Sstevel@tonic-gate
79*7c478bd9Sstevel@tonic-gate if( (amode & s.st_mode) == amode )
80*7c478bd9Sstevel@tonic-gate return(0); /* access permitted */
81*7c478bd9Sstevel@tonic-gate errno = EACCES;
82*7c478bd9Sstevel@tonic-gate return(-1);
83*7c478bd9Sstevel@tonic-gate }
84