[apple/file_cmds.git] / mtree / spec.c

/*-
 * Copyright (c) 1989, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef lint
#if 0
static char sccsid[] = "@(#)spec.c	8.1 (Berkeley) 6/6/93";
#endif
static const char rcsid[] =
  "$FreeBSD: src/usr.sbin/mtree/spec.c,v 1.13.2.1 2000/06/28 02:33:17 joe Exp $";
#endif /* not lint */

#include <sys/types.h>
#include <sys/stat.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <fts.h>
#include <grp.h>
#include <pwd.h>
#include <stdio.h>
#include <unistd.h>
#include <vis.h>
#include "mtree.h"
#include "extern.h"

int lineno;				/* Current spec line number. */

static void	 set __P((char *, NODE *));
static void	 unset __P((char *, NODE *));

NODE *
spec()
{
	register NODE *centry, *last;
	register char *p;
	NODE ginfo, *root;
	int c_cur, c_next;
	char buf[2048];

	centry = last = root = NULL;
	bzero(&ginfo, sizeof(ginfo));
	c_cur = c_next = 0;
	for (lineno = 1; fgets(buf, sizeof(buf), stdin);
	    ++lineno, c_cur = c_next, c_next = 0) {
		/* Skip empty lines. */
		if (buf[0] == '\n')
			continue;

		/* Find end of line. */
		if ((p = index(buf, '\n')) == NULL)
			errx(1, "line %d too long", lineno);

		/* See if next line is continuation line. */
		if (p[-1] == '\\') {
			--p;
			c_next = 1;
		}

		/* Null-terminate the line. */
		*p = '\0';

		/* Skip leading whitespace. */
		for (p = buf; *p && isspace(*p); ++p);

		/* If nothing but whitespace or comment char, continue. */
		if (!*p || *p == '#')
			continue;

#ifdef DEBUG
		(void)fprintf(stderr, "line %d: {%s}\n", lineno, p);
#endif
		if (c_cur) {
			set(p, centry);
			continue;
		}

		/* Grab file name, "$", "set", or "unset". */
		if ((p = strtok(p, "\n\t ")) == NULL)
			errx(1, "line %d: missing field", lineno);

		if (p[0] == '/')
			switch(p[1]) {
			case 's':
				if (strcmp(p + 1, "set"))
					break;
				set(NULL, &ginfo);
				continue;
			case 'u':
				if (strcmp(p + 1, "unset"))
					break;
				unset(NULL, &ginfo);
				continue;
			}

		if (index(p, '/'))
			errx(1, "line %d: slash character in file name",
			lineno);

		if (!strcmp(p, "..")) {
			/* Don't go up, if haven't gone down. */
			if (!root)
				goto noparent;
			if (last->type != F_DIR || last->flags & F_DONE) {
				if (last == root)
					goto noparent;
				last = last->parent;
			}
			last->flags |= F_DONE;
			continue;

noparent:		errx(1, "line %d: no parent node", lineno);
		}

		if ((centry = calloc(1, sizeof(NODE) + strlen(p))) == NULL)
			errx(1, "calloc");
		*centry = ginfo;
#define	MAGIC	"?*["
		if (strpbrk(p, MAGIC))
			centry->flags |= F_MAGIC;
		if (strunvis(centry->name, p) == -1) {
			warnx("filename %s is ill-encoded and literally used",
			    p);
			strcpy(centry->name, p);
		}
		set(NULL, centry);

		if (!root) {
			last = root = centry;
			root->parent = root;
		} else if (last->type == F_DIR && !(last->flags & F_DONE)) {
			centry->parent = last;
			last = last->child = centry;
		} else {
			centry->parent = last->parent;
			centry->prev = last;
			last = last->next = centry;
		}
	}
	return (root);
}

static void
set(t, ip)
	char *t;
	NODE *ip;
{
	register int type;
	char *kw, *val = NULL;
	struct group *gr;
	struct passwd *pw;
	mode_t *m;
	int value;
	char *ep;

	for (; (kw = strtok(t, "= \t\n")); t = NULL) {
		ip->flags |= type = parsekey(kw, &value);
		if (value && (val = strtok(NULL, " \t\n")) == NULL)
			errx(1, "line %d: missing value", lineno);
		switch(type) {
		case F_CKSUM:
			ip->cksum = strtoul(val, &ep, 10);
			if (*ep)
				errx(1, "line %d: invalid checksum %s",
				lineno, val);
			break;
		case F_MD5:
			ip->md5digest = strdup(val);
			if(!ip->md5digest) {
				errx(1, "strdup");
			}
			break;
		case F_SHA1:
			ip->sha1digest = strdup(val);
			if(!ip->sha1digest) {
				errx(1, "strdup");
			}
			break;
		case F_RMD160:
			ip->rmd160digest = strdup(val);
			if(!ip->rmd160digest) {
				errx(1, "strdup");
			}
			break;
		case F_FLAGS:
			if (strcmp("none", val) == 0)
				ip->st_flags = 0;
			else if (strtofflags(&val, &ip->st_flags, NULL) != 0)
				errx(1, "line %d: invalid flag %s",lineno, val);
 			break;
		case F_GID:
			ip->st_gid = strtoul(val, &ep, 10);
			if (*ep)
				errx(1, "line %d: invalid gid %s", lineno, val);
			break;
		case F_GNAME:
			if ((gr = getgrnam(val)) == NULL)
			    errx(1, "line %d: unknown group %s", lineno, val);
			ip->st_gid = gr->gr_gid;
			break;
		case F_IGN:
			/* just set flag bit */
			break;
		case F_MODE:
			if ((m = setmode(val)) == NULL)
				errx(1, "line %d: invalid file mode %s",
				lineno, val);
			ip->st_mode = getmode(m, 0);
			free(m);
			break;
		case F_NLINK:
			ip->st_nlink = strtoul(val, &ep, 10);
			if (*ep)
				errx(1, "line %d: invalid link count %s",
				lineno,  val);
			break;
		case F_SIZE:
			ip->st_size = strtoq(val, &ep, 10);
			if (*ep)
				errx(1, "line %d: invalid size %s",
				lineno, val);
			break;
		case F_SLINK:
			if ((ip->slink = strdup(val)) == NULL)
				errx(1, "strdup");
			break;
		case F_TIME:
			ip->st_mtimespec.tv_sec = strtoul(val, &ep, 10);
			if (*ep != '.')
				errx(1, "line %d: invalid time %s",
				lineno, val);
			val = ep + 1;
			ip->st_mtimespec.tv_nsec = strtoul(val, &ep, 10);
			if (*ep)
				errx(1, "line %d: invalid time %s",
				lineno, val);
			break;
		case F_TYPE:
			switch(*val) {
			case 'b':
				if (!strcmp(val, "block"))
					ip->type = F_BLOCK;
				break;
			case 'c':
				if (!strcmp(val, "char"))
					ip->type = F_CHAR;
				break;
			case 'd':
				if (!strcmp(val, "dir"))
					ip->type = F_DIR;
				break;
			case 'f':
				if (!strcmp(val, "file"))
					ip->type = F_FILE;
				if (!strcmp(val, "fifo"))
					ip->type = F_FIFO;
				break;
			case 'l':
				if (!strcmp(val, "link"))
					ip->type = F_LINK;
				break;
			case 's':
				if (!strcmp(val, "socket"))
					ip->type = F_SOCK;
				break;
			default:
				errx(1, "line %d: unknown file type %s",
				lineno, val);
			}
			break;
		case F_UID:
			ip->st_uid = strtoul(val, &ep, 10);
			if (*ep)
				errx(1, "line %d: invalid uid %s", lineno, val);
			break;
		case F_UNAME:
			if ((pw = getpwnam(val)) == NULL)
			    errx(1, "line %d: unknown user %s", lineno, val);
			ip->st_uid = pw->pw_uid;
			break;
		}
	}
}

static void
unset(t, ip)
	char *t;
	register NODE *ip;
{
	register char *p;

	while ((p = strtok(t, "\n\t ")))
		ip->flags &= ~parsekey(p, NULL);
}
Commit	Line	Data
44a7a5ab A	1	/*-
	2	* Copyright (c) 1989, 1993
	3	* The Regents of the University of California. 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
44a7a5ab A	34	#ifndef lint
44a7a5ab A	35	#if 0
440bd198	36	static char sccsid[] = "@(#)spec.c 8.1 (Berkeley) 6/6/93";
44a7a5ab	37	#endif
440bd198 A	38	static const char rcsid[] =
440bd198 A	39	"$FreeBSD: src/usr.sbin/mtree/spec.c,v 1.13.2.1 2000/06/28 02:33:17 joe Exp $";
44a7a5ab A	40	#endif /* not lint */
	41
	42	#include <sys/types.h>
	43	#include <sys/stat.h>
	44	#include <ctype.h>
440bd198	45	#include <err.h>
44a7a5ab A	46	#include <errno.h>
	47	#include <fts.h>
	48	#include <grp.h>
	49	#include <pwd.h>
	50	#include <stdio.h>
44a7a5ab	51	#include <unistd.h>
440bd198	52	#include <vis.h>
44a7a5ab A	53	#include "mtree.h"
	54	#include "extern.h"
	55
	56	int lineno; /* Current spec line number. */
	57
	58	static void set __P((char , NODE ));
	59	static void unset __P((char , NODE ));
	60
	61	NODE *
	62	spec()
	63	{
440bd198 A	64	register NODE centry, last;
440bd198 A	65	register char *p;
44a7a5ab A	66	NODE ginfo, *root;
	67	int c_cur, c_next;
	68	char buf[2048];
	69
440bd198 A	70	centry = last = root = NULL;
440bd198 A	71	bzero(&ginfo, sizeof(ginfo));
44a7a5ab A	72	c_cur = c_next = 0;
	73	for (lineno = 1; fgets(buf, sizeof(buf), stdin);
	74	++lineno, c_cur = c_next, c_next = 0) {
	75	/* Skip empty lines. */
	76	if (buf[0] == '\n')
	77	continue;
	78
	79	/* Find end of line. */
440bd198 A	80	if ((p = index(buf, '\n')) == NULL)
440bd198 A	81	errx(1, "line %d too long", lineno);
44a7a5ab A	82
	83	/* See if next line is continuation line. */
	84	if (p[-1] == '\\') {
	85	--p;
	86	c_next = 1;
	87	}
	88
	89	/* Null-terminate the line. */
	90	*p = '\0';
	91
	92	/* Skip leading whitespace. */
	93	for (p = buf; p && isspace(p); ++p);
	94
	95	/* If nothing but whitespace or comment char, continue. */
	96	if (!p \|\| p == '#')
	97	continue;
	98
	99	#ifdef DEBUG
	100	(void)fprintf(stderr, "line %d: {%s}\n", lineno, p);
	101	#endif
	102	if (c_cur) {
	103	set(p, centry);
	104	continue;
	105	}
440bd198	106
44a7a5ab A	107	/* Grab file name, "$", "set", or "unset". */
44a7a5ab A	108	if ((p = strtok(p, "\n\t ")) == NULL)
440bd198	109	errx(1, "line %d: missing field", lineno);
44a7a5ab A	110
	111	if (p[0] == '/')
	112	switch(p[1]) {
	113	case 's':
	114	if (strcmp(p + 1, "set"))
	115	break;
	116	set(NULL, &ginfo);
	117	continue;
	118	case 'u':
	119	if (strcmp(p + 1, "unset"))
	120	break;
	121	unset(NULL, &ginfo);
	122	continue;
	123	}
	124
440bd198 A	125	if (index(p, '/'))
	126	errx(1, "line %d: slash character in file name",
	127	lineno);
44a7a5ab A	128
	129	if (!strcmp(p, "..")) {
	130	/* Don't go up, if haven't gone down. */
	131	if (!root)
	132	goto noparent;
	133	if (last->type != F_DIR \|\| last->flags & F_DONE) {
	134	if (last == root)
	135	goto noparent;
	136	last = last->parent;
	137	}
	138	last->flags \|= F_DONE;
	139	continue;
	140
440bd198	141	noparent: errx(1, "line %d: no parent node", lineno);
44a7a5ab A	142	}
	143
	144	if ((centry = calloc(1, sizeof(NODE) + strlen(p))) == NULL)
440bd198	145	errx(1, "calloc");
44a7a5ab	146	*centry = ginfo;
44a7a5ab A	147	#define MAGIC "?*["
	148	if (strpbrk(p, MAGIC))
	149	centry->flags \|= F_MAGIC;
440bd198 A	150	if (strunvis(centry->name, p) == -1) {
	151	warnx("filename %s is ill-encoded and literally used",
	152	p);
	153	strcpy(centry->name, p);
	154	}
44a7a5ab A	155	set(NULL, centry);
	156
	157	if (!root) {
	158	last = root = centry;
	159	root->parent = root;
	160	} else if (last->type == F_DIR && !(last->flags & F_DONE)) {
	161	centry->parent = last;
	162	last = last->child = centry;
	163	} else {
	164	centry->parent = last->parent;
	165	centry->prev = last;
	166	last = last->next = centry;
	167	}
	168	}
	169	return (root);
	170	}
	171
	172	static void
	173	set(t, ip)
	174	char *t;
	175	NODE *ip;
	176	{
440bd198 A	177	register int type;
440bd198 A	178	char kw, val = NULL;
44a7a5ab A	179	struct group *gr;
	180	struct passwd *pw;
	181	mode_t *m;
	182	int value;
	183	char *ep;
	184
440bd198	185	for (; (kw = strtok(t, "= \t\n")); t = NULL) {
44a7a5ab A	186	ip->flags \|= type = parsekey(kw, &value);
44a7a5ab A	187	if (value && (val = strtok(NULL, " \t\n")) == NULL)
440bd198	188	errx(1, "line %d: missing value", lineno);
44a7a5ab A	189	switch(type) {
	190	case F_CKSUM:
	191	ip->cksum = strtoul(val, &ep, 10);
	192	if (*ep)
440bd198 A	193	errx(1, "line %d: invalid checksum %s",
	194	lineno, val);
	195	break;
	196	case F_MD5:
	197	ip->md5digest = strdup(val);
	198	if(!ip->md5digest) {
	199	errx(1, "strdup");
	200	}
44a7a5ab	201	break;
440bd198 A	202	case F_SHA1:
	203	ip->sha1digest = strdup(val);
	204	if(!ip->sha1digest) {
	205	errx(1, "strdup");
	206	}
	207	break;
	208	case F_RMD160:
	209	ip->rmd160digest = strdup(val);
	210	if(!ip->rmd160digest) {
	211	errx(1, "strdup");
	212	}
	213	break;
	214	case F_FLAGS:
	215	if (strcmp("none", val) == 0)
	216	ip->st_flags = 0;
	217	else if (strtofflags(&val, &ip->st_flags, NULL) != 0)
	218	errx(1, "line %d: invalid flag %s",lineno, val);
	219	break;
44a7a5ab	220	case F_GID:
440bd198	221	ip->st_gid = strtoul(val, &ep, 10);
44a7a5ab	222	if (*ep)
440bd198	223	errx(1, "line %d: invalid gid %s", lineno, val);
44a7a5ab A	224	break;
	225	case F_GNAME:
	226	if ((gr = getgrnam(val)) == NULL)
440bd198	227	errx(1, "line %d: unknown group %s", lineno, val);
44a7a5ab A	228	ip->st_gid = gr->gr_gid;
	229	break;
	230	case F_IGN:
	231	/* just set flag bit */
	232	break;
	233	case F_MODE:
	234	if ((m = setmode(val)) == NULL)
440bd198 A	235	errx(1, "line %d: invalid file mode %s",
440bd198 A	236	lineno, val);
44a7a5ab A	237	ip->st_mode = getmode(m, 0);
	238	free(m);
	239	break;
	240	case F_NLINK:
440bd198	241	ip->st_nlink = strtoul(val, &ep, 10);
44a7a5ab	242	if (*ep)
440bd198 A	243	errx(1, "line %d: invalid link count %s",
440bd198 A	244	lineno, val);
44a7a5ab A	245	break;
44a7a5ab A	246	case F_SIZE:
440bd198	247	ip->st_size = strtoq(val, &ep, 10);
44a7a5ab	248	if (*ep)
440bd198 A	249	errx(1, "line %d: invalid size %s",
440bd198 A	250	lineno, val);
44a7a5ab A	251	break;
	252	case F_SLINK:
	253	if ((ip->slink = strdup(val)) == NULL)
440bd198	254	errx(1, "strdup");
44a7a5ab A	255	break;
44a7a5ab A	256	case F_TIME:
440bd198	257	ip->st_mtimespec.tv_sec = strtoul(val, &ep, 10);
44a7a5ab	258	if (*ep != '.')
440bd198 A	259	errx(1, "line %d: invalid time %s",
440bd198 A	260	lineno, val);
44a7a5ab	261	val = ep + 1;
440bd198	262	ip->st_mtimespec.tv_nsec = strtoul(val, &ep, 10);
44a7a5ab	263	if (*ep)
440bd198 A	264	errx(1, "line %d: invalid time %s",
440bd198 A	265	lineno, val);
44a7a5ab A	266	break;
	267	case F_TYPE:
	268	switch(*val) {
	269	case 'b':
	270	if (!strcmp(val, "block"))
	271	ip->type = F_BLOCK;
	272	break;
	273	case 'c':
	274	if (!strcmp(val, "char"))
	275	ip->type = F_CHAR;
	276	break;
	277	case 'd':
	278	if (!strcmp(val, "dir"))
	279	ip->type = F_DIR;
	280	break;
	281	case 'f':
	282	if (!strcmp(val, "file"))
	283	ip->type = F_FILE;
	284	if (!strcmp(val, "fifo"))
	285	ip->type = F_FIFO;
	286	break;
	287	case 'l':
	288	if (!strcmp(val, "link"))
	289	ip->type = F_LINK;
	290	break;
	291	case 's':
	292	if (!strcmp(val, "socket"))
	293	ip->type = F_SOCK;
	294	break;
	295	default:
440bd198 A	296	errx(1, "line %d: unknown file type %s",
440bd198 A	297	lineno, val);
44a7a5ab A	298	}
	299	break;
	300	case F_UID:
440bd198	301	ip->st_uid = strtoul(val, &ep, 10);
44a7a5ab	302	if (*ep)
440bd198	303	errx(1, "line %d: invalid uid %s", lineno, val);
44a7a5ab A	304	break;
	305	case F_UNAME:
	306	if ((pw = getpwnam(val)) == NULL)
440bd198	307	errx(1, "line %d: unknown user %s", lineno, val);
44a7a5ab A	308	ip->st_uid = pw->pw_uid;
	309	break;
	310	}
	311	}
	312	}
	313
	314	static void
	315	unset(t, ip)
	316	char *t;
440bd198	317	register NODE *ip;
44a7a5ab	318	{
440bd198	319	register char *p;
44a7a5ab	320
440bd198	321	while ((p = strtok(t, "\n\t ")))
44a7a5ab A	322	ip->flags &= ~parsekey(p, NULL);
44a7a5ab A	323	}