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specspec.c revision 1.1
      1 /*	$NetBSD: specspec.c,v 1.1 2012/10/05 01:26:56 christos Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2003 Poul-Henning Kamp
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #if HAVE_NBTOOL_CONFIG_H
     30 #include "nbtool_config.h"
     31 #endif
     32 
     33 #include <sys/cdefs.h>
     34 __RCSID("$NetBSD: specspec.c,v 1.1 2012/10/05 01:26:56 christos Exp $");
     35 
     36 #include <err.h>
     37 #include <grp.h>
     38 #include <pwd.h>
     39 #include <stdio.h>
     40 #include <stdint.h>
     41 #include <stdlib.h>
     42 #include <string.h>
     43 #include <unistd.h>
     44 #include "mtree.h"
     45 #include "extern.h"
     46 
     47 #define FF(a, b, c, d) \
     48 	(((a)->flags & (c)) && ((b)->flags & (c)) && ((a)->d) != ((b)->d))
     49 #define FS(a, b, c, d) \
     50 	(((a)->flags & (c)) && ((b)->flags & (c)) && strcmp((a)->d,(b)->d))
     51 #define FM(a, b, c, d) \
     52 	(((a)->flags & (c)) && ((b)->flags & (c)) && memcmp(&(a)->d,&(b)->d, sizeof (a)->d))
     53 
     54 static void
     55 shownode(NODE *n, int f, char const *path)
     56 {
     57 	struct group *gr;
     58 	struct passwd *pw;
     59 
     60 	printf("%s%s %s", path, n->name, inotype(nodetoino(n->type)));
     61 	if (f & F_CKSUM)
     62 		printf(" cksum=%lu", n->cksum);
     63 	if (f & F_GID)
     64 		printf(" gid=%d", n->st_gid);
     65 	if (f & F_GNAME) {
     66 		gr = getgrgid(n->st_gid);
     67 		if (gr == NULL)
     68 			printf(" gid=%d", n->st_gid);
     69 		else
     70 			printf(" gname=%s", gr->gr_name);
     71 	}
     72 	if (f & F_MODE)
     73 		printf(" mode=%o", n->st_mode);
     74 	if (f & F_NLINK)
     75 		printf(" nlink=%d", n->st_nlink);
     76 	if (f & F_SIZE)
     77 		printf(" size=%jd", (intmax_t)n->st_size);
     78 	if (f & F_UID)
     79 		printf(" uid=%d", n->st_uid);
     80 	if (f & F_UNAME) {
     81 		pw = getpwuid(n->st_uid);
     82 		if (pw == NULL)
     83 			printf(" uid=%d", n->st_uid);
     84 		else
     85 			printf(" uname=%s", pw->pw_name);
     86 	}
     87 	if (f & F_MD5)
     88 		printf(" %s=%s", MD5KEY, n->md5digest);
     89 	if (f & F_SHA1)
     90 		printf(" %s=%s", SHA1KEY, n->sha1digest);
     91 	if (f & F_RMD160)
     92 		printf(" %s=%s", RMD160KEY, n->rmd160digest);
     93 	if (f & F_SHA256)
     94 		printf(" %s=%s", SHA256KEY, n->sha256digest);
     95 	if (f & F_SHA384)
     96 		printf(" %s=%s", SHA384KEY, n->sha384digest);
     97 	if (f & F_SHA512)
     98 		printf(" %s=%s", SHA512KEY, n->sha512digest);
     99 	if (f & F_FLAGS)
    100 		printf(" flags=%s", flags_to_string(n->st_flags, "none"));
    101 	printf("\n");
    102 }
    103 
    104 static int
    105 mismatch(NODE *n1, NODE *n2, int differ, char const *path)
    106 {
    107 
    108 	if (n2 == NULL) {
    109 		shownode(n1, differ, path);
    110 		return (1);
    111 	}
    112 	if (n1 == NULL) {
    113 		printf("\t");
    114 		shownode(n2, differ, path);
    115 		return (1);
    116 	}
    117 	if (!(differ & keys))
    118 		return(0);
    119 	printf("\t\t");
    120 	shownode(n1, differ, path);
    121 	printf("\t\t");
    122 	shownode(n2, differ, path);
    123 	return (1);
    124 }
    125 
    126 static int
    127 compare_nodes(NODE *n1, NODE *n2, char const *path)
    128 {
    129 	int differs;
    130 
    131 	if (n1 != NULL && n1->type == F_LINK)
    132 		n1->flags &= ~F_MODE;
    133 	if (n2 != NULL && n2->type == F_LINK)
    134 		n2->flags &= ~F_MODE;
    135 	differs = 0;
    136 	if (n1 == NULL && n2 != NULL) {
    137 		differs = n2->flags;
    138 		mismatch(n1, n2, differs, path);
    139 		return (1);
    140 	}
    141 	if (n1 != NULL && n2 == NULL) {
    142 		differs = n1->flags;
    143 		mismatch(n1, n2, differs, path);
    144 		return (1);
    145 	}
    146 	if (n1->type != n2->type) {
    147 		differs = 0;
    148 		mismatch(n1, n2, differs, path);
    149 		return (1);
    150 	}
    151 	if (FF(n1, n2, F_CKSUM, cksum))
    152 		differs |= F_CKSUM;
    153 	if (FF(n1, n2, F_GID, st_gid))
    154 		differs |= F_GID;
    155 	if (FF(n1, n2, F_GNAME, st_gid))
    156 		differs |= F_GNAME;
    157 	if (FF(n1, n2, F_MODE, st_mode))
    158 		differs |= F_MODE;
    159 	if (FF(n1, n2, F_NLINK, st_nlink))
    160 		differs |= F_NLINK;
    161 	if (FF(n1, n2, F_SIZE, st_size))
    162 		differs |= F_SIZE;
    163 	if (FS(n1, n2, F_SLINK, slink))
    164 		differs |= F_SLINK;
    165 	if (FM(n1, n2, F_TIME, st_mtimespec))
    166 		differs |= F_TIME;
    167 	if (FF(n1, n2, F_UID, st_uid))
    168 		differs |= F_UID;
    169 	if (FF(n1, n2, F_UNAME, st_uid))
    170 		differs |= F_UNAME;
    171 	if (FS(n1, n2, F_MD5, md5digest))
    172 		differs |= F_MD5;
    173 	if (FS(n1, n2, F_SHA1, sha1digest))
    174 		differs |= F_SHA1;
    175 	if (FS(n1, n2, F_RMD160, rmd160digest))
    176 		differs |= F_RMD160;
    177 	if (FS(n1, n2, F_SHA256, sha256digest))
    178 		differs |= F_SHA256;
    179 	if (FS(n1, n2, F_SHA384, sha384digest))
    180 		differs |= F_SHA384;
    181 	if (FS(n1, n2, F_SHA512, sha512digest))
    182 		differs |= F_SHA512;
    183 	if (FF(n1, n2, F_FLAGS, st_flags))
    184 		differs |= F_FLAGS;
    185 	if (differs) {
    186 		mismatch(n1, n2, differs, path);
    187 		return (1);
    188 	}
    189 	return (0);
    190 }
    191 static int
    192 walk_in_the_forest(NODE *t1, NODE *t2, char const *path)
    193 {
    194 	int r, i;
    195 	NODE *c1, *c2, *n1, *n2;
    196 	char *np;
    197 
    198 	r = 0;
    199 
    200 	if (t1 != NULL)
    201 		c1 = t1->child;
    202 	else
    203 		c1 = NULL;
    204 	if (t2 != NULL)
    205 		c2 = t2->child;
    206 	else
    207 		c2 = NULL;
    208 	while (c1 != NULL || c2 != NULL) {
    209 		n1 = n2 = NULL;
    210 		if (c1 != NULL)
    211 			n1 = c1->next;
    212 		if (c2 != NULL)
    213 			n2 = c2->next;
    214 		if (c1 != NULL && c2 != NULL) {
    215 			if (c1->type != F_DIR && c2->type == F_DIR) {
    216 				n2 = c2;
    217 				c2 = NULL;
    218 			} else if (c1->type == F_DIR && c2->type != F_DIR) {
    219 				n1 = c1;
    220 				c1 = NULL;
    221 			} else {
    222 				i = strcmp(c1->name, c2->name);
    223 				if (i > 0) {
    224 					n1 = c1;
    225 					c1 = NULL;
    226 				} else if (i < 0) {
    227 					n2 = c2;
    228 					c2 = NULL;
    229 				}
    230 			}
    231 		}
    232 		if (c1 == NULL && c2->type == F_DIR) {
    233 			asprintf(&np, "%s%s/", path, c2->name);
    234 			i = walk_in_the_forest(c1, c2, np);
    235 			free(np);
    236 			i += compare_nodes(c1, c2, path);
    237 		} else if (c2 == NULL && c1->type == F_DIR) {
    238 			asprintf(&np, "%s%s/", path, c1->name);
    239 			i = walk_in_the_forest(c1, c2, np);
    240 			free(np);
    241 			i += compare_nodes(c1, c2, path);
    242 		} else if (c1 == NULL || c2 == NULL) {
    243 			i = compare_nodes(c1, c2, path);
    244 		} else if (c1->type == F_DIR && c2->type == F_DIR) {
    245 			asprintf(&np, "%s%s/", path, c1->name);
    246 			i = walk_in_the_forest(c1, c2, np);
    247 			free(np);
    248 			i += compare_nodes(c1, c2, path);
    249 		} else {
    250 			i = compare_nodes(c1, c2, path);
    251 		}
    252 		r += i;
    253 		c1 = n1;
    254 		c2 = n2;
    255 	}
    256 	return (r);
    257 }
    258 
    259 int
    260 mtree_specspec(FILE *fi, FILE *fj)
    261 {
    262 	int rval;
    263 	NODE *root1, *root2;
    264 
    265 	root1 = spec(fi);
    266 	root2 = spec(fj);
    267 	rval = walk_in_the_forest(root1, root2, "");
    268 	rval += compare_nodes(root1, root2, "");
    269 	if (rval > 0)
    270 		return (MISMATCHEXIT);
    271 	return (0);
    272 }
    273