Deleted Added
sdiff udiff text old ( 33603 ) new ( 36285 )
full compact
id.c (33603) id.c (36285)
1/*-
2 * Copyright (c) 1997 Brian Somers <brian@Awfulhak.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

--- 9 unchanged lines hidden (view full) ---

18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
1/*-
2 * Copyright (c) 1997 Brian Somers <brian@Awfulhak.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

--- 9 unchanged lines hidden (view full) ---

18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $Id: id.c,v 1.6 1998/01/21 02:15:16 brian Exp $
26 * $Id: id.c,v 1.6.4.10 1998/05/01 19:24:41 brian Exp $
27 */
28
29#include <sys/types.h>
30#include <sys/socket.h>
27 */
28
29#include <sys/types.h>
30#include <sys/socket.h>
31#include <sys/un.h>
31
32#include <sys/ioctl.h>
33#include <fcntl.h>
32
33#include <sys/ioctl.h>
34#include <fcntl.h>
35#include <stdarg.h>
34#include <stdio.h>
35#include <string.h>
36#include <sysexits.h>
37#include <unistd.h>
38#ifdef __OpenBSD__
39#include <util.h>
40#else
41#include <libutil.h>
42#endif
43#include <utmp.h>
44
36#include <stdio.h>
37#include <string.h>
38#include <sysexits.h>
39#include <unistd.h>
40#ifdef __OpenBSD__
41#include <util.h>
42#else
43#include <libutil.h>
44#endif
45#include <utmp.h>
46
45#include "command.h"
46#include "mbuf.h"
47#include "log.h"
48#include "main.h"
49#include "id.h"
50
51static int uid;
52static int euid;
53
54void
55ID0init()
56{
57 uid = getuid();
58 euid = geteuid();
59}
60
61static void
62ID0setuser(void)
63{
64 if (seteuid(uid) == -1) {
47#include "log.h"
48#include "main.h"
49#include "id.h"
50
51static int uid;
52static int euid;
53
54void
55ID0init()
56{
57 uid = getuid();
58 euid = geteuid();
59}
60
61static void
62ID0setuser(void)
63{
64 if (seteuid(uid) == -1) {
65 LogPrintf(LogERROR, "ID0setuser: Unable to seteuid!\n");
66 Cleanup(EX_NOPERM);
65 log_Printf(LogERROR, "ID0setuser: Unable to seteuid!\n");
66 AbortProgram(EX_NOPERM);
67 }
68}
69
70uid_t
71ID0realuid()
72{
73 return uid;
74}
75
76static void
77ID0set0(void)
78{
79 if (seteuid(euid) == -1) {
67 }
68}
69
70uid_t
71ID0realuid()
72{
73 return uid;
74}
75
76static void
77ID0set0(void)
78{
79 if (seteuid(euid) == -1) {
80 LogPrintf(LogERROR, "ID0set0: Unable to seteuid!\n");
81 Cleanup(EX_NOPERM);
80 log_Printf(LogERROR, "ID0set0: Unable to seteuid!\n");
81 AbortProgram(EX_NOPERM);
82 }
83}
84
85int
86ID0ioctl(int fd, unsigned long req, void *arg)
87{
88 int ret;
89
90 ID0set0();
91 ret = ioctl(fd, req, arg);
82 }
83}
84
85int
86ID0ioctl(int fd, unsigned long req, void *arg)
87{
88 int ret;
89
90 ID0set0();
91 ret = ioctl(fd, req, arg);
92 LogPrintf(LogID0, "%d = ioctl(%d, %d, %p)\n", ret, fd, req, arg);
92 log_Printf(LogID0, "%d = ioctl(%d, %lu, %p)\n", ret, fd, req, arg);
93 ID0setuser();
94 return ret;
95}
96
97int
98ID0unlink(const char *name)
99{
100 int ret;
101
102 ID0set0();
103 ret = unlink(name);
93 ID0setuser();
94 return ret;
95}
96
97int
98ID0unlink(const char *name)
99{
100 int ret;
101
102 ID0set0();
103 ret = unlink(name);
104 LogPrintf(LogID0, "%d = unlink(\"%s\")\n", ret, name);
104 log_Printf(LogID0, "%d = unlink(\"%s\")\n", ret, name);
105 ID0setuser();
106 return ret;
107}
108
109int
110ID0socket(int domain, int type, int protocol)
111{
112 int ret;
113
114 ID0set0();
115 ret = socket(domain, type, protocol);
105 ID0setuser();
106 return ret;
107}
108
109int
110ID0socket(int domain, int type, int protocol)
111{
112 int ret;
113
114 ID0set0();
115 ret = socket(domain, type, protocol);
116 LogPrintf(LogID0, "%d = socket(%d, %d, %d)\n", ret, domain, type, protocol);
116 log_Printf(LogID0, "%d = socket(%d, %d, %d)\n", ret, domain, type, protocol);
117 ID0setuser();
118 return ret;
119}
120
121FILE *
122ID0fopen(const char *path, const char *mode)
123{
124 FILE *ret;
125
126 ID0set0();
127 ret = fopen(path, mode);
117 ID0setuser();
118 return ret;
119}
120
121FILE *
122ID0fopen(const char *path, const char *mode)
123{
124 FILE *ret;
125
126 ID0set0();
127 ret = fopen(path, mode);
128 LogPrintf(LogID0, "%p = fopen(\"%s\", \"%s\")\n", ret, path, mode);
128 log_Printf(LogID0, "%p = fopen(\"%s\", \"%s\")\n", ret, path, mode);
129 ID0setuser();
130 return ret;
131}
132
133int
129 ID0setuser();
130 return ret;
131}
132
133int
134ID0open(const char *path, int flags)
134ID0open(const char *path, int flags, ...)
135{
136 int ret;
135{
136 int ret;
137 va_list ap;
137
138
139 va_start(ap, flags);
138 ID0set0();
140 ID0set0();
139 ret = open(path, flags);
140 LogPrintf(LogID0, "%d = open(\"%s\", %d)\n", ret, path, flags);
141 ret = open(path, flags, va_arg(ap, int));
142 log_Printf(LogID0, "%d = open(\"%s\", %d)\n", ret, path, flags);
141 ID0setuser();
143 ID0setuser();
144 va_end(ap);
142 return ret;
143}
144
145int
146ID0write(int fd, const void *data, size_t len)
147{
148 int ret;
149
150 ID0set0();
151 ret = write(fd, data, len);
145 return ret;
146}
147
148int
149ID0write(int fd, const void *data, size_t len)
150{
151 int ret;
152
153 ID0set0();
154 ret = write(fd, data, len);
152 LogPrintf(LogID0, "%d = write(%d, data, %d)\n", ret, fd, len);
155 log_Printf(LogID0, "%d = write(%d, data, %d)\n", ret, fd, len);
153 ID0setuser();
154 return ret;
155}
156
157int
158ID0uu_lock(const char *basettyname)
159{
160 int ret;
161
162 ID0set0();
163 ret = uu_lock(basettyname);
156 ID0setuser();
157 return ret;
158}
159
160int
161ID0uu_lock(const char *basettyname)
162{
163 int ret;
164
165 ID0set0();
166 ret = uu_lock(basettyname);
164 LogPrintf(LogID0, "%d = uu_lock(\"%s\")\n", ret, basettyname);
167 log_Printf(LogID0, "%d = uu_lock(\"%s\")\n", ret, basettyname);
165 ID0setuser();
166 return ret;
167}
168
169int
170ID0uu_unlock(const char *basettyname)
171{
172 int ret;
173
174 ID0set0();
175 ret = uu_unlock(basettyname);
168 ID0setuser();
169 return ret;
170}
171
172int
173ID0uu_unlock(const char *basettyname)
174{
175 int ret;
176
177 ID0set0();
178 ret = uu_unlock(basettyname);
176 LogPrintf(LogID0, "%d = uu_unlock(\"%s\")\n", ret, basettyname);
179 log_Printf(LogID0, "%d = uu_unlock(\"%s\")\n", ret, basettyname);
177 ID0setuser();
178 return ret;
179}
180
181void
182ID0login(struct utmp *ut)
183{
184 ID0set0();
185 if (logout(ut->ut_line)) {
180 ID0setuser();
181 return ret;
182}
183
184void
185ID0login(struct utmp *ut)
186{
187 ID0set0();
188 if (logout(ut->ut_line)) {
186 LogPrintf(LogID0, "logout(\"%s\")\n", ut->ut_line);
189 log_Printf(LogID0, "logout(\"%s\")\n", ut->ut_line);
187 logwtmp(ut->ut_line, "", "");
190 logwtmp(ut->ut_line, "", "");
188 LogPrintf(LogID0, "logwtmp(\"%s\", \"\", \"\")\n", ut->ut_line);
191 log_Printf(LogID0, "logwtmp(\"%s\", \"\", \"\")\n", ut->ut_line);
189 }
190 login(ut);
192 }
193 login(ut);
191 LogPrintf(LogID0, "login(\"%s\", \"%.*s\")\n",
192 ut->ut_line, sizeof ut->ut_name, ut->ut_name);
194 log_Printf(LogID0, "login(\"%s\", \"%.*s\")\n",
195 ut->ut_line, (int)(sizeof ut->ut_name), ut->ut_name);
193 ID0setuser();
194}
195
196void
197ID0logout(const char *device)
198{
199 struct utmp ut;
200
201 strncpy(ut.ut_line, device, sizeof ut.ut_line - 1);
202 ut.ut_line[sizeof ut.ut_line - 1] = '\0';
203
204 ID0set0();
205 if (logout(ut.ut_line)) {
196 ID0setuser();
197}
198
199void
200ID0logout(const char *device)
201{
202 struct utmp ut;
203
204 strncpy(ut.ut_line, device, sizeof ut.ut_line - 1);
205 ut.ut_line[sizeof ut.ut_line - 1] = '\0';
206
207 ID0set0();
208 if (logout(ut.ut_line)) {
206 LogPrintf(LogID0, "logout(\"%s\")\n", ut.ut_line);
209 log_Printf(LogID0, "logout(\"%s\")\n", ut.ut_line);
207 logwtmp(ut.ut_line, "", "");
210 logwtmp(ut.ut_line, "", "");
208 LogPrintf(LogID0, "logwtmp(\"%s\", \"\", \"\")\n", ut.ut_line);
211 log_Printf(LogID0, "logwtmp(\"%s\", \"\", \"\")\n", ut.ut_line);
209 } else
212 } else
210 LogPrintf(LogERROR, "ID0logout: No longer logged in on %s\n", ut.ut_line);
213 log_Printf(LogERROR, "ID0logout: No longer logged in on %s\n", ut.ut_line);
211 ID0setuser();
212}
214 ID0setuser();
215}
216
217int
218ID0bind_un(int s, const struct sockaddr_un *name)
219{
220 int result;
221
222 ID0set0();
223 result = bind(s, (const struct sockaddr *)name, sizeof *name);
224 log_Printf(LogID0, "%d = bind(%d, \"%s\", %d)\n",
225 result, s, name->sun_path, sizeof *name);
226 ID0setuser();
227 return result;
228}
229
230int
231ID0connect_un(int s, const struct sockaddr_un *name)
232{
233 int result;
234
235 ID0set0();
236 result = connect(s, (const struct sockaddr *)name, sizeof *name);
237 log_Printf(LogID0, "%d = connect(%d, \"%s\", %d)\n",
238 result, s, name->sun_path, sizeof *name);
239 ID0setuser();
240 return result;
241}