1/*-
2 * Copyright (c) 2003 Poul-Henning Kamp
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 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: head/usr.sbin/mtree/specspec.c 133264 2004-08-07 10:04:29Z simokawa $");
29
30#include <err.h>
31#include <grp.h>
32#include <pwd.h>
33#include <stdio.h>
34#include <stdint.h>
35#include <unistd.h>
36#include "mtree.h"
37#include "extern.h"
38
39#define FF(a, b, c, d) \
40 (((a)->flags & (c)) && ((b)->flags & (c)) && ((a)->d) != ((b)->d))
41#define FS(a, b, c, d) \
42 (((a)->flags & (c)) && ((b)->flags & (c)) && strcmp((a)->d,(b)->d))
43#define FM(a, b, c, d) \
44 (((a)->flags & (c)) && ((b)->flags & (c)) && memcmp(&(a)->d,&(b)->d, sizeof (a)->d))
45
46static void
47shownode(NODE *n, int f, char const *path)
48{
49 struct group *gr;
50 struct passwd *pw;
51
52 printf("%s%s %s", path, n->name, ftype(n->type));
53 if (f & F_CKSUM)
54 printf(" cksum=%lu", n->cksum);
55 if (f & F_GID)
56 printf(" gid=%d", n->st_gid);
57 if (f & F_GNAME) {
58 gr = getgrgid(n->st_gid);
59 if (gr == NULL)
60 printf(" gid=%d", n->st_gid);
61 else
62 printf(" gname=%s", gr->gr_name);
63 }
64 if (f & F_MODE)
65 printf(" mode=%o", n->st_mode);
66 if (f & F_NLINK)
67 printf(" nlink=%d", n->st_nlink);
68 if (f & F_SIZE)
69 printf(" size=%jd", (intmax_t)n->st_size);
70 if (f & F_UID)
71 printf(" uid=%d", n->st_uid);
72 if (f & F_UNAME) {
73 pw = getpwuid(n->st_uid);
74 if (pw == NULL)
75 printf(" uid=%d", n->st_uid);
76 else
77 printf(" uname=%s", pw->pw_name);
78 }
79 if (f & F_MD5)
80 printf(" md5digest=%s", n->md5digest);
81 if (f & F_SHA1)
82 printf(" sha1digest=%s", n->sha1digest);
83 if (f & F_RMD160)
84 printf(" rmd160digest=%s", n->rmd160digest);
85 if (f & F_FLAGS)
86 printf(" flags=%s", flags_to_string(n->st_flags));
87 printf("\n");
88}
89
90static int
91mismatch(NODE *n1, NODE *n2, int differ, char const *path)
92{
93
94 if (n2 == NULL) {
95 shownode(n1, differ, path);
96 return (1);
97 }
98 if (n1 == NULL) {
99 printf("\t");
100 shownode(n2, differ, path);
101 return (1);
102 }
103 if (!(differ & keys))
104 return(0);
105 printf("\t\t");
106 shownode(n1, differ, path);
107 printf("\t\t");
108 shownode(n2, differ, path);
109 return (1);
110}
111
112static int
113compare_nodes(NODE *n1, NODE *n2, char const *path)
114{
115 int differs;
116
117 if (n1 != NULL && n1->type == F_LINK)
118 n1->flags &= ~F_MODE;
119 if (n2 != NULL && n2->type == F_LINK)
120 n2->flags &= ~F_MODE;
121 differs = 0;
122 if (n1 == NULL && n2 != NULL) {
123 differs = n2->flags;
124 mismatch(n1, n2, differs, path);
125 return (1);
126 }
127 if (n1 != NULL && n2 == NULL) {
128 differs = n1->flags;
129 mismatch(n1, n2, differs, path);
130 return (1);
131 }
132 if (n1->type != n2->type) {
133 differs = 0;
134 mismatch(n1, n2, differs, path);
135 return (1);
136 }
137 if (FF(n1, n2, F_CKSUM, cksum))
138 differs |= F_CKSUM;
139 if (FF(n1, n2, F_GID, st_gid))
140 differs |= F_GID;
141 if (FF(n1, n2, F_GNAME, st_gid))
142 differs |= F_GNAME;
143 if (FF(n1, n2, F_MODE, st_mode))
144 differs |= F_MODE;
145 if (FF(n1, n2, F_NLINK, st_nlink))
146 differs |= F_NLINK;
147 if (FF(n1, n2, F_SIZE, st_size))
148 differs |= F_SIZE;
149 if (FS(n1, n2, F_SLINK, slink))
150 differs |= F_SLINK;
151 if (FM(n1, n2, F_TIME, st_mtimespec))
152 differs |= F_TIME;
153 if (FF(n1, n2, F_UID, st_uid))
154 differs |= F_UID;
155 if (FF(n1, n2, F_UNAME, st_uid))
156 differs |= F_UNAME;
157 if (FS(n1, n2, F_MD5, md5digest))
158 differs |= F_MD5;
159 if (FS(n1, n2, F_SHA1, sha1digest))
160 differs |= F_SHA1;
161 if (FS(n1, n2, F_RMD160, rmd160digest))
162 differs |= F_RMD160;
163 if (FF(n1, n2, F_FLAGS, st_flags))
164 differs |= F_FLAGS;
165 if (differs) {
166 mismatch(n1, n2, differs, path);
167 return (1);
168 }
169 return (0);
170}
171static int
172walk_in_the_forest(NODE *t1, NODE *t2, char const *path)
173{
174 int r, i;
175 NODE *c1, *c2, *n1, *n2;
176 char *np;
177
178 r = 0;
179
180 if (t1 != NULL)
181 c1 = t1->child;
182 else
183 c1 = NULL;
184 if (t2 != NULL)
185 c2 = t2->child;
186 else
187 c2 = NULL;
188 while (c1 != NULL || c2 != NULL) {
189 n1 = n2 = NULL;
190 if (c1 != NULL)
191 n1 = c1->next;
192 if (c2 != NULL)
193 n2 = c2->next;
194 if (c1 != NULL && c2 != NULL) {
195 if (c1->type != F_DIR && c2->type == F_DIR) {
196 n2 = c2;
197 c2 = NULL;
198 } else if (c1->type == F_DIR && c2->type != F_DIR) {
199 n1 = c1;
200 c1 = NULL;
201 } else {
202 i = strcmp(c1->name, c2->name);
203 if (i > 0) {
204 n1 = c1;
205 c1 = NULL;
206 } else if (i < 0) {
207 n2 = c2;
208 c2 = NULL;
209 }
210 }
211 }
212 if (c1 == NULL && c2->type == F_DIR) {
213 asprintf(&np, "%s%s/", path, c2->name);
214 i = walk_in_the_forest(c1, c2, np);
215 free(np);
216 i = compare_nodes(c1, c2, path);
217 } else if (c2 == NULL && c1->type == F_DIR) {
218 asprintf(&np, "%s%s/", path, c1->name);
219 i = walk_in_the_forest(c1, c2, np);
220 free(np);
221 i = compare_nodes(c1, c2, path);
222 } else if (c1 == NULL || c2 == NULL) {
223 i = compare_nodes(c1, c2, path);
224 } else if (c1->type == F_DIR && c2->type == F_DIR) {
225 asprintf(&np, "%s%s/", path, c1->name);
226 i = walk_in_the_forest(c1, c2, np);
227 free(np);
228 i = compare_nodes(c1, c2, path);
229 } else {
230 i = compare_nodes(c1, c2, path);
231 }
232 r += i;
233 c1 = n1;
234 c2 = n2;
235 }
236 return (r);
237}
238
239int
240mtree_specspec(FILE *fi, FILE *fj)
241{
242 int rval;
243 NODE *root1, *root2;
244
245 root1 = mtree_readspec(fi);
246 root2 = mtree_readspec(fj);
247 rval = walk_in_the_forest(root1, root2, "");
248 rval += compare_nodes(root1, root2, "");
249 if (rval > 0)
250 return (MISMATCHEXIT);
251 return (0);
252}