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compare.c revision 1.13
      1 /*	$NetBSD: compare.c,v 1.13 1997/10/17 11:46:30 lukem Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1989, 1993
      5  *	The Regents of the University of California.  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  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the University of
     18  *	California, Berkeley and its contributors.
     19  * 4. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  */
     35 
     36 #include <sys/cdefs.h>
     37 #ifndef lint
     38 #if 0
     39 static char sccsid[] = "@(#)compare.c	8.1 (Berkeley) 6/6/93";
     40 #else
     41 __RCSID("$NetBSD: compare.c,v 1.13 1997/10/17 11:46:30 lukem Exp $");
     42 #endif
     43 #endif /* not lint */
     44 
     45 #include <sys/param.h>
     46 #include <sys/stat.h>
     47 #include <fcntl.h>
     48 #include <fts.h>
     49 #include <errno.h>
     50 #include <stdio.h>
     51 #include <time.h>
     52 #include <unistd.h>
     53 #include "mtree.h"
     54 #include "extern.h"
     55 
     56 extern int tflag, uflag;
     57 
     58 static char *ftype __P((u_int));
     59 
     60 #define	INDENTNAMELEN	8
     61 #define	LABEL \
     62 	if (!label++) { \
     63 		len = printf("%s: ", RP(p)); \
     64 		if (len > INDENTNAMELEN) { \
     65 			tab = "\t"; \
     66 			(void)printf("\n"); \
     67 		} else { \
     68 			tab = ""; \
     69 			(void)printf("%*s", INDENTNAMELEN - (int)len, ""); \
     70 		} \
     71 	}
     72 
     73 int
     74 compare(name, s, p)
     75 	char *name;
     76 	NODE *s;
     77 	FTSENT *p;
     78 {
     79 	u_long len, val;
     80 	int fd, label;
     81 	char *cp, *tab;
     82 
     83 	tab = NULL;
     84 	label = 0;
     85 	switch(s->type) {
     86 	case F_BLOCK:
     87 		if (!S_ISBLK(p->fts_statp->st_mode))
     88 			goto typeerr;
     89 		break;
     90 	case F_CHAR:
     91 		if (!S_ISCHR(p->fts_statp->st_mode))
     92 			goto typeerr;
     93 		break;
     94 	case F_DIR:
     95 		if (!S_ISDIR(p->fts_statp->st_mode))
     96 			goto typeerr;
     97 		break;
     98 	case F_FIFO:
     99 		if (!S_ISFIFO(p->fts_statp->st_mode))
    100 			goto typeerr;
    101 		break;
    102 	case F_FILE:
    103 		if (!S_ISREG(p->fts_statp->st_mode))
    104 			goto typeerr;
    105 		break;
    106 	case F_LINK:
    107 		if (!S_ISLNK(p->fts_statp->st_mode))
    108 			goto typeerr;
    109 		break;
    110 	case F_SOCK:
    111 		if (!S_ISSOCK(p->fts_statp->st_mode)) {
    112 typeerr:		LABEL;
    113 			(void)printf("\ttype (%s, %s)\n",
    114 			    ftype(s->type), inotype(p->fts_statp->st_mode));
    115 		}
    116 		break;
    117 	}
    118 	/* Set the uid/gid first, then set the mode. */
    119 	if (s->flags & (F_UID | F_UNAME) && s->st_uid != p->fts_statp->st_uid) {
    120 		LABEL;
    121 		(void)printf("%suser (%u, %u",
    122 		    tab, s->st_uid, p->fts_statp->st_uid);
    123 		if (uflag)
    124 			if (chown(p->fts_accpath, s->st_uid, -1))
    125 				(void)printf(", not modified: %s)\n",
    126 				    strerror(errno));
    127 			else
    128 				(void)printf(", modified)\n");
    129 		else
    130 			(void)printf(")\n");
    131 		tab = "\t";
    132 	}
    133 	if (s->flags & (F_GID | F_GNAME) && s->st_gid != p->fts_statp->st_gid) {
    134 		LABEL;
    135 		(void)printf("%sgid (%u, %u",
    136 		    tab, s->st_gid, p->fts_statp->st_gid);
    137 		if (uflag)
    138 			if (chown(p->fts_accpath, -1, s->st_gid))
    139 				(void)printf(", not modified: %s)\n",
    140 				    strerror(errno));
    141 			else
    142 				(void)printf(", modified)\n");
    143 		else
    144 			(void)printf(")\n");
    145 		tab = "\t";
    146 	}
    147 	if (s->flags & F_MODE &&
    148 	    s->st_mode != (p->fts_statp->st_mode & MBITS)) {
    149 		LABEL;
    150 		(void)printf("%spermissions (%#o, %#o",
    151 		    tab, s->st_mode, p->fts_statp->st_mode & MBITS);
    152 		if (uflag)
    153 			if (chmod(p->fts_accpath, s->st_mode))
    154 				(void)printf(", not modified: %s)\n",
    155 				    strerror(errno));
    156 			else
    157 				(void)printf(", modified)\n");
    158 		else
    159 			(void)printf(")\n");
    160 		tab = "\t";
    161 	}
    162 	if (s->flags & F_NLINK && s->type != F_DIR &&
    163 	    s->st_nlink != p->fts_statp->st_nlink) {
    164 		LABEL;
    165 		(void)printf("%slink count (%u, %u)\n",
    166 		    tab, s->st_nlink, p->fts_statp->st_nlink);
    167 		tab = "\t";
    168 	}
    169 	if (s->flags & F_SIZE && s->st_size != p->fts_statp->st_size) {
    170 		LABEL;
    171 		(void)printf("%ssize (%qd, %qd)\n",
    172 		    tab, s->st_size, p->fts_statp->st_size);
    173 		tab = "\t";
    174 	}
    175 	/*
    176 	 * XXX
    177 	 * Since utimes(2) only takes a timeval, there's no point in
    178 	 * comparing the low bits of the timespec nanosecond field.  This
    179 	 * will only result in mismatches that we can never fix.
    180 	 *
    181 	 * Doesn't display microsecond differences.
    182 	 */
    183 	if (s->flags & F_TIME) {
    184 		struct timeval tv[2];
    185 
    186 		TIMESPEC_TO_TIMEVAL(&tv[0], &s->st_mtimespec);
    187 		TIMESPEC_TO_TIMEVAL(&tv[1], &p->fts_statp->st_mtimespec);
    188 		if (tv[0].tv_sec != tv[1].tv_sec ||
    189 		    tv[0].tv_usec != tv[1].tv_usec) {
    190 			LABEL;
    191 			(void)printf("%smodification time (%.24s, ",
    192 			    tab, ctime(&s->st_mtimespec.tv_sec));
    193 			(void)printf("%.24s",
    194 			    ctime(&p->fts_statp->st_mtimespec.tv_sec));
    195 			if (tflag) {
    196 				tv[1] = tv[0];
    197 				if (utimes(p->fts_accpath, tv))
    198 					(void)printf(", not modified: %s)\n",
    199 					    strerror(errno));
    200 				else
    201 					(void)printf(", modified)\n");
    202 			} else
    203 				(void)printf(")\n");
    204 			tab = "\t";
    205 		}
    206 	}
    207 	if (s->flags & F_CKSUM)
    208 		if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0) {
    209 			LABEL;
    210 			(void)printf("%scksum: %s: %s\n",
    211 			    tab, p->fts_accpath, strerror(errno));
    212 			tab = "\t";
    213 		} else if (crc(fd, &val, &len)) {
    214 			(void)close(fd);
    215 			LABEL;
    216 			(void)printf("%scksum: %s: %s\n",
    217 			    tab, p->fts_accpath, strerror(errno));
    218 			tab = "\t";
    219 		} else {
    220 			(void)close(fd);
    221 			if (s->cksum != val) {
    222 				LABEL;
    223 				(void)printf("%scksum (%lu, %lu)\n",
    224 				    tab, s->cksum, val);
    225 			}
    226 			tab = "\t";
    227 		}
    228 	if (s->flags & F_SLINK && strcmp(cp = rlink(name), s->slink)) {
    229 		LABEL;
    230 		(void)printf("%slink ref (%s, %s)\n", tab, cp, s->slink);
    231 	}
    232 	return (label);
    233 }
    234 
    235 char *
    236 inotype(type)
    237 	u_int type;
    238 {
    239 	switch(type & S_IFMT) {
    240 	case S_IFBLK:
    241 		return ("block");
    242 	case S_IFCHR:
    243 		return ("char");
    244 	case S_IFDIR:
    245 		return ("dir");
    246 	case S_IFIFO:
    247 		return ("fifo");
    248 	case S_IFREG:
    249 		return ("file");
    250 	case S_IFLNK:
    251 		return ("link");
    252 	case S_IFSOCK:
    253 		return ("socket");
    254 	default:
    255 		return ("unknown");
    256 	}
    257 	/* NOTREACHED */
    258 }
    259 
    260 static char *
    261 ftype(type)
    262 	u_int type;
    263 {
    264 	switch(type) {
    265 	case F_BLOCK:
    266 		return ("block");
    267 	case F_CHAR:
    268 		return ("char");
    269 	case F_DIR:
    270 		return ("dir");
    271 	case F_FIFO:
    272 		return ("fifo");
    273 	case F_FILE:
    274 		return ("file");
    275 	case F_LINK:
    276 		return ("link");
    277 	case F_SOCK:
    278 		return ("socket");
    279 	default:
    280 		return ("unknown");
    281 	}
    282 	/* NOTREACHED */
    283 }
    284 
    285 char *
    286 rlink(name)
    287 	char *name;
    288 {
    289 	static char lbuf[MAXPATHLEN];
    290 	int len;
    291 
    292 	if ((len = readlink(name, lbuf, sizeof(lbuf))) == -1)
    293 		err("%s: %s", name, strerror(errno));
    294 	lbuf[len] = '\0';
    295 	return (lbuf);
    296 }
    297