253 lines
6.2 KiB
C
253 lines
6.2 KiB
C
/*-
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* Copyright (c) 2003 Poul-Henning Kamp
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <err.h>
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#include <grp.h>
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#include <pwd.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <unistd.h>
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#include "mtree.h"
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#include "extern.h"
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#define FF(a, b, c, d) \
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(((a)->flags & (c)) && ((b)->flags & (c)) && ((a)->d) != ((b)->d))
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#define FS(a, b, c, d) \
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(((a)->flags & (c)) && ((b)->flags & (c)) && strcmp((a)->d,(b)->d))
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#define FM(a, b, c, d) \
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(((a)->flags & (c)) && ((b)->flags & (c)) && memcmp(&(a)->d,&(b)->d, sizeof (a)->d))
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static void
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shownode(NODE *n, int f, char const *path)
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{
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struct group *gr;
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struct passwd *pw;
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printf("%s%s %s", path, n->name, ftype(n->type));
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if (f & F_CKSUM)
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printf(" cksum=%lu", n->cksum);
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if (f & F_GID)
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printf(" gid=%d", n->st_gid);
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if (f & F_GNAME) {
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gr = getgrgid(n->st_gid);
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if (gr == NULL)
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printf(" gid=%d", n->st_gid);
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else
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printf(" gname=%s", gr->gr_name);
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}
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if (f & F_MODE)
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printf(" mode=%o", n->st_mode);
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if (f & F_NLINK)
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printf(" nlink=%d", n->st_nlink);
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if (f & F_SIZE)
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printf(" size=%jd", (intmax_t)n->st_size);
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if (f & F_UID)
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printf(" uid=%d", n->st_uid);
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if (f & F_UNAME) {
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pw = getpwuid(n->st_uid);
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if (pw == NULL)
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printf(" uid=%d", n->st_uid);
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else
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printf(" uname=%s", pw->pw_name);
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}
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if (f & F_MD5)
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printf(" md5digest=%s", n->md5digest);
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if (f & F_SHA1)
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printf(" sha1digest=%s", n->sha1digest);
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if (f & F_RMD160)
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printf(" rmd160digest=%s", n->rmd160digest);
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if (f & F_FLAGS)
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printf(" flags=%s", flags_to_string(n->st_flags));
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printf("\n");
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}
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static int
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mismatch(NODE *n1, NODE *n2, int differ, char const *path)
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{
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if (n2 == NULL) {
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shownode(n1, differ, path);
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return (1);
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}
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if (n1 == NULL) {
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printf("\t");
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shownode(n2, differ, path);
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return (1);
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}
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if (!(differ & keys))
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return(0);
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printf("\t\t");
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shownode(n1, differ, path);
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printf("\t\t");
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shownode(n2, differ, path);
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return (1);
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}
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static int
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compare_nodes(NODE *n1, NODE *n2, char const *path)
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{
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int differs;
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if (n1 != NULL && n1->type == F_LINK)
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n1->flags &= ~F_MODE;
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if (n2 != NULL && n2->type == F_LINK)
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n2->flags &= ~F_MODE;
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differs = 0;
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if (n1 == NULL && n2 != NULL) {
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differs = n2->flags;
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mismatch(n1, n2, differs, path);
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return (1);
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}
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if (n1 != NULL && n2 == NULL) {
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differs = n1->flags;
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mismatch(n1, n2, differs, path);
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return (1);
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}
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if (n1->type != n2->type) {
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differs = 0;
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mismatch(n1, n2, differs, path);
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return (1);
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}
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if (FF(n1, n2, F_CKSUM, cksum))
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differs |= F_CKSUM;
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if (FF(n1, n2, F_GID, st_gid))
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differs |= F_GID;
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if (FF(n1, n2, F_GNAME, st_gid))
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differs |= F_GNAME;
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if (FF(n1, n2, F_MODE, st_mode))
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differs |= F_MODE;
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if (FF(n1, n2, F_NLINK, st_nlink))
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differs |= F_NLINK;
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if (FF(n1, n2, F_SIZE, st_size))
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differs |= F_SIZE;
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if (FS(n1, n2, F_SLINK, slink))
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differs |= F_SLINK;
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if (FM(n1, n2, F_TIME, st_mtimespec))
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differs |= F_TIME;
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if (FF(n1, n2, F_UID, st_uid))
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differs |= F_UID;
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if (FF(n1, n2, F_UNAME, st_uid))
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differs |= F_UNAME;
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if (FS(n1, n2, F_MD5, md5digest))
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differs |= F_MD5;
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if (FS(n1, n2, F_SHA1, sha1digest))
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differs |= F_SHA1;
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if (FS(n1, n2, F_RMD160, rmd160digest))
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differs |= F_RMD160;
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if (FF(n1, n2, F_FLAGS, st_flags))
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differs |= F_FLAGS;
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if (differs) {
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mismatch(n1, n2, differs, path);
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return (1);
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}
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return (0);
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}
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static int
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walk_in_the_forest(NODE *t1, NODE *t2, char const *path)
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{
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int r, i;
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NODE *c1, *c2, *n1, *n2;
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char *np;
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r = 0;
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if (t1 != NULL)
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c1 = t1->child;
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else
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c1 = NULL;
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if (t2 != NULL)
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c2 = t2->child;
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else
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c2 = NULL;
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while (c1 != NULL || c2 != NULL) {
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n1 = n2 = NULL;
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if (c1 != NULL)
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n1 = c1->next;
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if (c2 != NULL)
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n2 = c2->next;
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if (c1 != NULL && c2 != NULL) {
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if (c1->type != F_DIR && c2->type == F_DIR) {
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n2 = c2;
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c2 = NULL;
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} else if (c1->type == F_DIR && c2->type != F_DIR) {
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n1 = c1;
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c1 = NULL;
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} else {
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i = strcmp(c1->name, c2->name);
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if (i > 0) {
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n1 = c1;
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c1 = NULL;
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} else if (i < 0) {
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n2 = c2;
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c2 = NULL;
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}
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}
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}
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if (c1 == NULL && c2->type == F_DIR) {
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asprintf(&np, "%s%s/", path, c2->name);
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i = walk_in_the_forest(c1, c2, np);
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free(np);
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i = compare_nodes(c1, c2, path);
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} else if (c2 == NULL && c1->type == F_DIR) {
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asprintf(&np, "%s%s/", path, c1->name);
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i = walk_in_the_forest(c1, c2, np);
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free(np);
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i = compare_nodes(c1, c2, path);
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} else if (c1 == NULL || c2 == NULL) {
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i = compare_nodes(c1, c2, path);
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} else if (c1->type == F_DIR && c2->type == F_DIR) {
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asprintf(&np, "%s%s/", path, c1->name);
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i = walk_in_the_forest(c1, c2, np);
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free(np);
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i = compare_nodes(c1, c2, path);
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} else {
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i = compare_nodes(c1, c2, path);
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}
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r += i;
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c1 = n1;
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c2 = n2;
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}
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return (r);
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}
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int
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mtree_specspec(FILE *fi, FILE *fj)
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{
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int rval;
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NODE *root1, *root2;
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root1 = mtree_readspec(fi);
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root2 = mtree_readspec(fj);
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rval = walk_in_the_forest(root1, root2, "");
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rval += compare_nodes(root1, root2, "");
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if (rval > 0)
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return (MISMATCHEXIT);
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return (0);
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}
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