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compare.c revision 1.6
      1 /*-
      2  * Copyright (c) 1989 The Regents of the University of California.
      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  * 3. All advertising materials mentioning features or use of this software
     14  *    must display the following acknowledgement:
     15  *	This product includes software developed by the University of
     16  *	California, Berkeley and its contributors.
     17  * 4. Neither the name of the University nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  */
     33 
     34 #ifndef lint
     35 /* from: static char sccsid[] = "@(#)compare.c	5.10 (Berkeley) 3/31/92"; */
     36 static char *rcsid = "$Id: compare.c,v 1.6 1994/03/27 09:09:42 cgd Exp $";
     37 #endif /* not lint */
     38 
     39 #include <sys/param.h>
     40 #include <sys/stat.h>
     41 #include <fcntl.h>
     42 #include <fts.h>
     43 #include <errno.h>
     44 #include <stdio.h>
     45 #include <time.h>
     46 #include <unistd.h>
     47 #include "mtree.h"
     48 #include "extern.h"
     49 
     50 extern int uflag;
     51 
     52 static char *ftype __P((u_int));
     53 
     54 #define	INDENTNAMELEN	8
     55 #define	LABEL \
     56 	if (!label++) { \
     57 		len = printf("%s: ", RP(p)); \
     58 		if (len > INDENTNAMELEN) { \
     59 			tab = "\t"; \
     60 			(void)printf("\n"); \
     61 		} else { \
     62 			tab = ""; \
     63 			(void)printf("%*s", INDENTNAMELEN - len, ""); \
     64 		} \
     65 	}
     66 
     67 int
     68 compare(name, s, p)
     69 	char *name;
     70 	register NODE *s;
     71 	register FTSENT *p;
     72 {
     73 	extern int uflag;
     74 	u_long len, val;
     75 	int fd, label;
     76 	char *cp, *tab;
     77 
     78 	label = 0;
     79 	switch(s->type) {
     80 	case F_BLOCK:
     81 		if (!S_ISBLK(p->fts_statp->st_mode))
     82 			goto typeerr;
     83 		break;
     84 	case F_CHAR:
     85 		if (!S_ISCHR(p->fts_statp->st_mode))
     86 			goto typeerr;
     87 		break;
     88 	case F_DIR:
     89 		if (!S_ISDIR(p->fts_statp->st_mode))
     90 			goto typeerr;
     91 		break;
     92 	case F_FIFO:
     93 		if (!S_ISFIFO(p->fts_statp->st_mode))
     94 			goto typeerr;
     95 		break;
     96 	case F_FILE:
     97 		if (!S_ISREG(p->fts_statp->st_mode))
     98 			goto typeerr;
     99 		break;
    100 	case F_LINK:
    101 		if (!S_ISLNK(p->fts_statp->st_mode))
    102 			goto typeerr;
    103 		break;
    104 	case F_SOCK:
    105 		if (!S_ISSOCK(p->fts_statp->st_mode)) {
    106 typeerr:		LABEL;
    107 			(void)printf("\ttype (%s, %s)\n",
    108 			    ftype(s->type), inotype(p->fts_statp->st_mode));
    109 		}
    110 		break;
    111 	}
    112 	/* Set the uid/gid first, then set the mode. */
    113 	if (s->flags & (F_UID | F_UNAME) && s->st_uid != p->fts_statp->st_uid) {
    114 		LABEL;
    115 		(void)printf("%suser (%u, %u",
    116 		    tab, s->st_uid, p->fts_statp->st_uid);
    117 		if (uflag)
    118 			if (chown(p->fts_accpath, s->st_uid, -1))
    119 				(void)printf(", not modified: %s)\n",
    120 				    strerror(errno));
    121 			else
    122 				(void)printf(", modified)\n");
    123 		else
    124 			(void)printf(")\n");
    125 		tab = "\t";
    126 	}
    127 	if (s->flags & (F_GID | F_GNAME) && s->st_gid != p->fts_statp->st_gid) {
    128 		LABEL;
    129 		(void)printf("%sgid (%u, %u",
    130 		    tab, s->st_gid, p->fts_statp->st_gid);
    131 		if (uflag)
    132 			if (chown(p->fts_accpath, -1, s->st_gid))
    133 				(void)printf(", not modified: %s)\n",
    134 				    strerror(errno));
    135 			else
    136 				(void)printf(", modified)\n");
    137 		else
    138 			(void)printf(")\n");
    139 		tab = "\t";
    140 	}
    141 	if (s->flags & F_MODE &&
    142 	    s->st_mode != (p->fts_statp->st_mode & MBITS)) {
    143 		LABEL;
    144 		(void)printf("%spermissions (%#o, %#o",
    145 		    tab, s->st_mode, p->fts_statp->st_mode & MBITS);
    146 		if (uflag)
    147 			if (chmod(p->fts_accpath, s->st_mode))
    148 				(void)printf(", not modified: %s)\n",
    149 				    strerror(errno));
    150 			else
    151 				(void)printf(", modified)\n");
    152 		else
    153 			(void)printf(")\n");
    154 		tab = "\t";
    155 	}
    156 	if (s->flags & F_NLINK && s->type != F_DIR &&
    157 	    s->st_nlink != p->fts_statp->st_nlink) {
    158 		LABEL;
    159 		(void)printf("%slink count (%u, %u)\n",
    160 		    tab, s->st_nlink, p->fts_statp->st_nlink);
    161 		tab = "\t";
    162 	}
    163 	if (s->flags & F_SIZE && s->st_size != p->fts_statp->st_size) {
    164 		LABEL;
    165 		(void)printf("%ssize (%qd, %qd)\n",
    166 		    tab, s->st_size, p->fts_statp->st_size);
    167 		tab = "\t";
    168 	}
    169 	if (s->flags & F_TIME && s->st_mtime != p->fts_statp->st_mtime) {
    170 		LABEL;
    171 		(void)printf("%smodification time (%.24s, ",
    172 		    tab, ctime(&s->st_mtime));
    173 		(void)printf("%.24s)\n", ctime(&p->fts_statp->st_mtime));
    174 		tab = "\t";
    175 	}
    176 	if (s->flags & F_CKSUM)
    177 		if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0) {
    178 			LABEL;
    179 			(void)printf("%scksum: %s: %s\n",
    180 			    tab, p->fts_accpath, strerror(errno));
    181 			tab = "\t";
    182 		} else if (crc(fd, &val, &len)) {
    183 			(void)close(fd);
    184 			LABEL;
    185 			(void)printf("%scksum: %s: %s\n",
    186 			    tab, p->fts_accpath, strerror(errno));
    187 			tab = "\t";
    188 		} else {
    189 			(void)close(fd);
    190 			if (s->cksum != val) {
    191 				LABEL;
    192 				(void)printf("%scksum (%lu, %lu)\n",
    193 				    tab, s->cksum, val);
    194 			}
    195 			tab = "\t";
    196 		}
    197 	if (s->flags & F_SLINK && strcmp(cp = rlink(name), s->slink)) {
    198 		LABEL;
    199 		(void)printf("%slink ref (%s, %s)\n", tab, cp, s->slink);
    200 	}
    201 	return (label);
    202 }
    203 
    204 char *
    205 inotype(type)
    206 	u_int type;
    207 {
    208 	switch(type & S_IFMT) {
    209 	case S_IFBLK:
    210 		return ("block");
    211 	case S_IFCHR:
    212 		return ("char");
    213 	case S_IFDIR:
    214 		return ("dir");
    215 	case S_IFIFO:
    216 		return ("fifo");
    217 	case S_IFREG:
    218 		return ("file");
    219 	case S_IFLNK:
    220 		return ("link");
    221 	case S_IFSOCK:
    222 		return ("socket");
    223 	default:
    224 		return ("unknown");
    225 	}
    226 	/* NOTREACHED */
    227 }
    228 
    229 static char *
    230 ftype(type)
    231 	u_int type;
    232 {
    233 	switch(type) {
    234 	case F_BLOCK:
    235 		return ("block");
    236 	case F_CHAR:
    237 		return ("char");
    238 	case F_DIR:
    239 		return ("dir");
    240 	case F_FIFO:
    241 		return ("fifo");
    242 	case F_FILE:
    243 		return ("file");
    244 	case F_LINK:
    245 		return ("link");
    246 	case F_SOCK:
    247 		return ("socket");
    248 	default:
    249 		return ("unknown");
    250 	}
    251 	/* NOTREACHED */
    252 }
    253 
    254 char *
    255 rlink(name)
    256 	char *name;
    257 {
    258 	static char lbuf[MAXPATHLEN];
    259 	register int len;
    260 
    261 	if ((len = readlink(name, lbuf, sizeof(lbuf))) == -1)
    262 		err("%s: %s", name, strerror(errno));
    263 	lbuf[len] = '\0';
    264 	return (lbuf);
    265 }
    266