This commit was manufactured by cvs2svn to create branch 'JB'.

1 files changed, 0 insertions, 453 deletions

diff --git a/lib/libc/gen/setmode.c b/lib/libc/gen/setmode.c
deleted file mode 100644
index c69d775..0000000
--- a/lib/libc/gen/setmode.c
+++ /dev/null
@@ -1,453 +0,0 @@
-/*
- * Copyright (c) 1989, 1993, 1994
- *	The Regents of the University of California.  All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Dave Borman at Cray Research, Inc.
- *
- * 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.
- */
-
-#if defined(LIBC_SCCS) && !defined(lint)
-static char sccsid[] = "@(#)setmode.c	8.2 (Berkeley) 3/25/94";
-#endif /* LIBC_SCCS and not lint */
-
-#include <sys/types.h>
-#include <sys/stat.h>
-
-#include <ctype.h>
-#include <errno.h>
-#include <signal.h>
-#include <stddef.h>
-#include <stdlib.h>
-
-#ifdef SETMODE_DEBUG
-#include <stdio.h>
-#endif
-
-#define	SET_LEN	6		/* initial # of bitcmd struct to malloc */
-#define	SET_LEN_INCR 4		/* # of bitcmd structs to add as needed */
-
-typedef struct bitcmd {
-	char	cmd;
-	char	cmd2;
-	mode_t	bits;
-} BITCMD;
-
-#define	CMD2_CLR	0x01
-#define	CMD2_SET	0x02
-#define	CMD2_GBITS	0x04
-#define	CMD2_OBITS	0x08
-#define	CMD2_UBITS	0x10
-
-static BITCMD	*addcmd __P((BITCMD *, int, int, int, u_int));
-static void	 compress_mode __P((BITCMD *));
-#ifdef SETMODE_DEBUG
-static void	 dumpmode __P((BITCMD *));
-#endif
-
-/*
- * Given the old mode and an array of bitcmd structures, apply the operations
- * described in the bitcmd structures to the old mode, and return the new mode.
- * Note that there is no '=' command; a strict assignment is just a '-' (clear
- * bits) followed by a '+' (set bits).
- */
-mode_t
-getmode(bbox, omode)
-	void *bbox;
-	mode_t omode;
-{
-	register BITCMD *set;
-	register mode_t clrval, newmode, value;
-
-	set = (BITCMD *)bbox;
-	newmode = omode;
-	for (value = 0;; set++)
-		switch(set->cmd) {
-		/*
-		 * When copying the user, group or other bits around, we "know"
-		 * where the bits are in the mode so that we can do shifts to
-		 * copy them around.  If we don't use shifts, it gets real
-		 * grundgy with lots of single bit checks and bit sets.
-		 */
-		case 'u':
-			value = (newmode & S_IRWXU) >> 6;
-			goto common;
-
-		case 'g':
-			value = (newmode & S_IRWXG) >> 3;
-			goto common;
-
-		case 'o':
-			value = newmode & S_IRWXO;
-common:			if (set->cmd2 & CMD2_CLR) {
-				clrval =
-				    (set->cmd2 & CMD2_SET) ?  S_IRWXO : value;
-				if (set->cmd2 & CMD2_UBITS)
-					newmode &= ~((clrval<<6) & set->bits);
-				if (set->cmd2 & CMD2_GBITS)
-					newmode &= ~((clrval<<3) & set->bits);
-				if (set->cmd2 & CMD2_OBITS)
-					newmode &= ~(clrval & set->bits);
-			}
-			if (set->cmd2 & CMD2_SET) {
-				if (set->cmd2 & CMD2_UBITS)
-					newmode |= (value<<6) & set->bits;
-				if (set->cmd2 & CMD2_GBITS)
-					newmode |= (value<<3) & set->bits;
-				if (set->cmd2 & CMD2_OBITS)
-					newmode |= value & set->bits;
-			}
-			break;
-
-		case '+':
-			newmode |= set->bits;
-			break;
-
-		case '-':
-			newmode &= ~set->bits;
-			break;
-
-		case 'X':
-			if (omode & (S_IFDIR|S_IXUSR|S_IXGRP|S_IXOTH))
-				newmode |= set->bits;
-			break;
-
-		case '\0':
-		default:
-#ifdef SETMODE_DEBUG
-			(void)printf("getmode:%04o -> %04o\n", omode, newmode);
-#endif
-			return (newmode);
-		}
-}
-
-#define	ADDCMD(a, b, c, d)						\
-	if (set >= endset) {						\
-		register BITCMD *newset;				\
-		setlen += SET_LEN_INCR;					\
-		newset = realloc(saveset, sizeof(BITCMD) * setlen);	\
-		if (!saveset)						\
-			return (NULL);					\
-		set = newset + (set - saveset);				\
-		saveset = newset;					\
-		endset = newset + (setlen - 2);				\
-	}								\
-	set = addcmd(set, (a), (b), (c), (d))
-
-#define	STANDARD_BITS	(S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO)
-
-void *
-setmode(p)
-	register char *p;
-{
-	register int perm, who;
-	register char op;
-	BITCMD *set, *saveset, *endset;
-	sigset_t sigset, sigoset;
-	mode_t mask;
-	int equalopdone=0, permXbits, setlen;
-
-	if (!*p)
-		return (NULL);
-
-	/*
-	 * Get a copy of the mask for the permissions that are mask relative.
-	 * Flip the bits, we want what's not set.  Since it's possible that
-	 * the caller is opening files inside a signal handler, protect them
-	 * as best we can.
-	 */
-	sigfillset(&sigset);
-        (void)sigprocmask(SIG_BLOCK, &sigset, &sigoset);
-	(void)umask(mask = umask(0));
-	mask = ~mask;
-        (void)sigprocmask(SIG_SETMASK, &sigoset, NULL);
-
-	setlen = SET_LEN + 2;
-
-	if ((set = malloc((u_int)(sizeof(BITCMD) * setlen))) == NULL)
-		return (NULL);
-	saveset = set;
-	endset = set + (setlen - 2);
-
-	/*
-	 * If an absolute number, get it and return; disallow non-octal digits
-	 * or illegal bits.
-	 */
-	if (isdigit(*p)) {
-		perm = (mode_t)strtol(p, NULL, 8);
-		if (perm & ~(STANDARD_BITS|S_ISTXT)) {
-			free(saveset);
-			return (NULL);
-		}
-		while (*++p)
-			if (*p < '0' || *p > '7') {
-				free(saveset);
-				return (NULL);
-			}
-		ADDCMD('=', (STANDARD_BITS|S_ISTXT), perm, mask);
-		return (saveset);
-	}
-
-	/*
-	 * Build list of structures to set/clear/copy bits as described by
-	 * each clause of the symbolic mode.
-	 */
-	for (;;) {
-		/* First, find out which bits might be modified. */
-		for (who = 0;; ++p) {
-			switch (*p) {
-			case 'a':
-				who |= STANDARD_BITS;
-				break;
-			case 'u':
-				who |= S_ISUID|S_IRWXU;
-				break;
-			case 'g':
-				who |= S_ISGID|S_IRWXG;
-				break;
-			case 'o':
-				who |= S_IRWXO;
-				break;
-			default:
-				goto getop;
-			}
-		}
-
-getop:		if ((op = *p++) != '+' && op != '-' && op != '=') {
-			free(saveset);
-			return (NULL);
-		}
-		if (op == '=')
-			equalopdone = 0;
-
-		who &= ~S_ISTXT;
-		for (perm = 0, permXbits = 0;; ++p) {
-			switch (*p) {
-			case 'r':
-				perm |= S_IRUSR|S_IRGRP|S_IROTH;
-				break;
-			case 's':
-				/* If only "other" bits ignore set-id. */
-				if (who & ~S_IRWXO)
-					perm |= S_ISUID|S_ISGID;
-				break;
-			case 't':
-				/* If only "other" bits ignore sticky. */
-				if (who & ~S_IRWXO) {
-					who |= S_ISTXT;
-					perm |= S_ISTXT;
-				}
-				break;
-			case 'w':
-				perm |= S_IWUSR|S_IWGRP|S_IWOTH;
-				break;
-			case 'X':
-				permXbits = S_IXUSR|S_IXGRP|S_IXOTH;
-				break;
-			case 'x':
-				perm |= S_IXUSR|S_IXGRP|S_IXOTH;
-				break;
-			case 'u':
-			case 'g':
-			case 'o':
-				/*
-				 * When ever we hit 'u', 'g', or 'o', we have
-				 * to flush out any partial mode that we have,
-				 * and then do the copying of the mode bits.
-				 */
-				if (perm) {
-					ADDCMD(op, who, perm, mask);
-					perm = 0;
-				}
-				if (op == '=')
-					equalopdone = 1;
-				if (op == '+' && permXbits) {
-					ADDCMD('X', who, permXbits, mask);
-					permXbits = 0;
-				}
-				ADDCMD(*p, who, op, mask);
-				break;
-
-			default:
-				/*
-				 * Add any permissions that we haven't already
-				 * done.
-				 */
-				if (perm || (op == '=' && !equalopdone)) {
-					if (op == '=')
-						equalopdone = 1;
-					ADDCMD(op, who, perm, mask);
-					perm = 0;
-				}
-				if (permXbits) {
-					ADDCMD('X', who, permXbits, mask);
-					permXbits = 0;
-				}
-				goto apply;
-			}
-		}
-
-apply:		if (!*p)
-			break;
-		if (*p != ',')
-			goto getop;
-		++p;
-	}
-	set->cmd = 0;
-#ifdef SETMODE_DEBUG
-	(void)printf("Before compress_mode()\n");
-	dumpmode(saveset);
-#endif
-	compress_mode(saveset);
-#ifdef SETMODE_DEBUG
-	(void)printf("After compress_mode()\n");
-	dumpmode(saveset);
-#endif
-	return (saveset);
-}
-
-static BITCMD *
-addcmd(set, op, who, oparg, mask)
-	BITCMD *set;
-	register int oparg, who;
-	register int op;
-	u_int mask;
-{
-	switch (op) {
-	case '=':
-		set->cmd = '-';
-		set->bits = who ? who : STANDARD_BITS;
-		set++;
-
-		op = '+';
-		/* FALLTHROUGH */
-	case '+':
-	case '-':
-	case 'X':
-		set->cmd = op;
-		set->bits = (who ? who : mask) & oparg;
-		break;
-
-	case 'u':
-	case 'g':
-	case 'o':
-		set->cmd = op;
-		if (who) {
-			set->cmd2 = ((who & S_IRUSR) ? CMD2_UBITS : 0) |
-				    ((who & S_IRGRP) ? CMD2_GBITS : 0) |
-				    ((who & S_IROTH) ? CMD2_OBITS : 0);
-			set->bits = ~0;
-		} else {
-			set->cmd2 = CMD2_UBITS | CMD2_GBITS | CMD2_OBITS;
-			set->bits = mask;
-		}
-
-		if (oparg == '+')
-			set->cmd2 |= CMD2_SET;
-		else if (oparg == '-')
-			set->cmd2 |= CMD2_CLR;
-		else if (oparg == '=')
-			set->cmd2 |= CMD2_SET|CMD2_CLR;
-		break;
-	}
-	return (set + 1);
-}
-
-#ifdef SETMODE_DEBUG
-static void
-dumpmode(set)
-	register BITCMD *set;
-{
-	for (; set->cmd; ++set)
-		(void)printf("cmd: '%c' bits %04o%s%s%s%s%s%s\n",
-		    set->cmd, set->bits, set->cmd2 ? " cmd2:" : "",
-		    set->cmd2 & CMD2_CLR ? " CLR" : "",
-		    set->cmd2 & CMD2_SET ? " SET" : "",
-		    set->cmd2 & CMD2_UBITS ? " UBITS" : "",
-		    set->cmd2 & CMD2_GBITS ? " GBITS" : "",
-		    set->cmd2 & CMD2_OBITS ? " OBITS" : "");
-}
-#endif
-
-/*
- * Given an array of bitcmd structures, compress by compacting consecutive
- * '+', '-' and 'X' commands into at most 3 commands, one of each.  The 'u',
- * 'g' and 'o' commands continue to be separate.  They could probably be
- * compacted, but it's not worth the effort.
- */
-static void
-compress_mode(set)
-	register BITCMD *set;
-{
-	register BITCMD *nset;
-	register int setbits, clrbits, Xbits, op;
-
-	for (nset = set;;) {
-		/* Copy over any 'u', 'g' and 'o' commands. */
-		while ((op = nset->cmd) != '+' && op != '-' && op != 'X') {
-			*set++ = *nset++;
-			if (!op)
-				return;
-		}
-
-		for (setbits = clrbits = Xbits = 0;; nset++) {
-			if ((op = nset->cmd) == '-') {
-				clrbits |= nset->bits;
-				setbits &= ~nset->bits;
-				Xbits &= ~nset->bits;
-			} else if (op == '+') {
-				setbits |= nset->bits;
-				clrbits &= ~nset->bits;
-				Xbits &= ~nset->bits;
-			} else if (op == 'X')
-				Xbits |= nset->bits & ~setbits;
-			else
-				break;
-		}
-		if (clrbits) {
-			set->cmd = '-';
-			set->cmd2 = 0;
-			set->bits = clrbits;
-			set++;
-		}
-		if (setbits) {
-			set->cmd = '+';
-			set->cmd2 = 0;
-			set->bits = setbits;
-			set++;
-		}
-		if (Xbits) {
-			set->cmd = 'X';
-			set->cmd2 = 0;
-			set->bits = Xbits;
-			set++;
-		}
-	}
-}