Post-cvs2svn flatten pass.

1 files changed, 0 insertions, 417 deletions

diff --git a/contrib/nvi/ex/ex_init.c b/contrib/nvi/ex/ex_init.c
deleted file mode 100644
index 6a78416..0000000
--- a/contrib/nvi/ex/ex_init.c
+++ /dev/null
@@ -1,417 +0,0 @@
-/*-
- * Copyright (c) 1992, 1993, 1994
- *	The Regents of the University of California.  All rights reserved.
- * Copyright (c) 1992, 1993, 1994, 1995, 1996
- *	Keith Bostic.  All rights reserved.
- *
- * See the LICENSE file for redistribution information.
- */
-
-#include "config.h"
-
-#ifndef lint
-static const char sccsid[] = "@(#)ex_init.c	10.26 (Berkeley) 8/12/96";
-#endif /* not lint */
-
-#include <sys/param.h>
-#include <sys/types.h>		/* XXX: param.h may not have included types.h */
-#include <sys/queue.h>
-#include <sys/stat.h>
-
-#include <bitstring.h>
-#include <fcntl.h>
-#include <limits.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include "../common/common.h"
-#include "tag.h"
-#include "pathnames.h"
-
-enum rc { NOEXIST, NOPERM, RCOK };
-static enum rc	exrc_isok __P((SCR *, struct stat *, char *, int, int));
-
-static int ex_run_file __P((SCR *, char *));
-
-/*
- * ex_screen_copy --
- *	Copy ex screen.
- *
- * PUBLIC: int ex_screen_copy __P((SCR *, SCR *));
- */
-int
-ex_screen_copy(orig, sp)
-	SCR *orig, *sp;
-{
-	EX_PRIVATE *oexp, *nexp;
-
-	/* Create the private ex structure. */
-	CALLOC_RET(orig, nexp, EX_PRIVATE *, 1, sizeof(EX_PRIVATE));
-	sp->ex_private = nexp;
-
-	/* Initialize queues. */
-	CIRCLEQ_INIT(&nexp->tq);
-	TAILQ_INIT(&nexp->tagfq);
-	LIST_INIT(&nexp->cscq);
-
-	if (orig == NULL) {
-	} else {
-		oexp = EXP(orig);
-
-		if (oexp->lastbcomm != NULL &&
-		    (nexp->lastbcomm = strdup(oexp->lastbcomm)) == NULL) {
-			msgq(sp, M_SYSERR, NULL);
-			return(1);
-		}
-		if (ex_tag_copy(orig, sp))
-			return (1);
-	}
-	return (0);
-}
-
-/*
- * ex_screen_end --
- *	End a vi screen.
- *
- * PUBLIC: int ex_screen_end __P((SCR *));
- */
-int
-ex_screen_end(sp)
-	SCR *sp;
-{
-	EX_PRIVATE *exp;
-	int rval;
-
-	if ((exp = EXP(sp)) == NULL)
-		return (0);
-
-	rval = 0;
-
-	/* Close down script connections. */
-	if (F_ISSET(sp, SC_SCRIPT) && sscr_end(sp))
-		rval = 1;
-
-	if (argv_free(sp))
-		rval = 1;
-
-	if (exp->ibp != NULL)
-		free(exp->ibp);
-
-	if (exp->lastbcomm != NULL)
-		free(exp->lastbcomm);
-
-	if (ex_tag_free(sp))
-		rval = 1;
-
-	/* Free private memory. */
-	free(exp);
-	sp->ex_private = NULL;
-
-	return (rval);
-}
-
-/*
- * ex_optchange --
- *	Handle change of options for ex.
- *
- * PUBLIC: int ex_optchange __P((SCR *, int, char *, u_long *));
- */
-int
-ex_optchange(sp, offset, str, valp)
-	SCR *sp;
-	int offset;
-	char *str;
-	u_long *valp;
-{
-	switch (offset) {
-	case O_TAGS:
-		return (ex_tagf_alloc(sp, str));
-	}
-	return (0);
-}
-
-/*
- * ex_exrc --
- *	Read the EXINIT environment variable and the startup exrc files,
- *	and execute their commands.
- *
- * PUBLIC: int ex_exrc __P((SCR *));
- */
-int
-ex_exrc(sp)
-	SCR *sp;
-{
-	struct stat hsb, lsb;
-	char *p, path[MAXPATHLEN];
-
-	/*
-	 * Source the system, environment, $HOME and local .exrc values.
-	 * Vi historically didn't check $HOME/.exrc if the environment
-	 * variable EXINIT was set.  This is all done before the file is
-	 * read in, because things in the .exrc information can set, for
-	 * example, the recovery directory.
-	 *
-	 * !!!
-	 * While nvi can handle any of the options settings of historic vi,
-	 * the converse is not true.  Since users are going to have to have
-	 * files and environmental variables that work with both, we use nvi
-	 * versions of both the $HOME and local startup files if they exist,
-	 * otherwise the historic ones.
-	 *
-	 * !!!
-	 * For a discussion of permissions and when what .exrc files are
-	 * read, see the comment above the exrc_isok() function below.
-	 *
-	 * !!!
-	 * If the user started the historic of vi in $HOME, vi read the user's
-	 * .exrc file twice, as $HOME/.exrc and as ./.exrc.  We avoid this, as
-	 * it's going to make some commands behave oddly, and I can't imagine
-	 * anyone depending on it.
-	 */
-	switch (exrc_isok(sp, &hsb, _PATH_SYSEXRC, 1, 0)) {
-	case NOEXIST:
-	case NOPERM:
-		break;
-	case RCOK:
-		if (ex_run_file(sp, _PATH_SYSEXRC))
-			return (1);
-		break;
-	}
-
-	/* Run the commands. */
-	if (EXCMD_RUNNING(sp->gp))
-		(void)ex_cmd(sp);
-	if (F_ISSET(sp, SC_EXIT | SC_EXIT_FORCE))
-		return (0);
-
-	if ((p = getenv("NEXINIT")) != NULL) {
-		if (ex_run_str(sp, "NEXINIT", p, strlen(p), 1, 0))
-			return (1);
-	} else if ((p = getenv("EXINIT")) != NULL) {
-		if (ex_run_str(sp, "EXINIT", p, strlen(p), 1, 0))
-			return (1);
-	} else if ((p = getenv("HOME")) != NULL && *p) {
-		(void)snprintf(path, sizeof(path), "%s/%s", p, _PATH_NEXRC);
-		switch (exrc_isok(sp, &hsb, path, 0, 1)) {
-		case NOEXIST:
-			(void)snprintf(path,
-			    sizeof(path), "%s/%s", p, _PATH_EXRC);
-			if (exrc_isok(sp,
-			    &hsb, path, 0, 1) == RCOK && ex_run_file(sp, path))
-				return (1);
-			break;
-		case NOPERM:
-			break;
-		case RCOK:
-			if (ex_run_file(sp, path))
-				return (1);
-			break;
-		}
-	}
-
-	/* Run the commands. */
-	if (EXCMD_RUNNING(sp->gp))
-		(void)ex_cmd(sp);
-	if (F_ISSET(sp, SC_EXIT | SC_EXIT_FORCE))
-		return (0);
-
-	/* Previous commands may have set the exrc option. */
-	if (O_ISSET(sp, O_EXRC)) {
-		switch (exrc_isok(sp, &lsb, _PATH_NEXRC, 0, 0)) {
-		case NOEXIST:
-			if (exrc_isok(sp, &lsb, _PATH_EXRC, 0, 0) == RCOK &&
-			    (lsb.st_dev != hsb.st_dev ||
-			    lsb.st_ino != hsb.st_ino) &&
-			    ex_run_file(sp, _PATH_EXRC))
-				return (1);
-			break;
-		case NOPERM:
-			break;
-		case RCOK:
-			if ((lsb.st_dev != hsb.st_dev ||
-			    lsb.st_ino != hsb.st_ino) &&
-			    ex_run_file(sp, _PATH_NEXRC))
-				return (1);
-			break;
-		}
-		/* Run the commands. */
-		if (EXCMD_RUNNING(sp->gp))
-			(void)ex_cmd(sp);
-		if (F_ISSET(sp, SC_EXIT | SC_EXIT_FORCE))
-			return (0);
-	}
-
-	return (0);
-}
-
-/*
- * ex_run_file --
- *	Set up a file of ex commands to run.
- */
-static int
-ex_run_file(sp, name)
-	SCR *sp;
-	char *name;
-{
-	ARGS *ap[2], a;
-	EXCMD cmd;
-
-	ex_cinit(&cmd, C_SOURCE, 0, OOBLNO, OOBLNO, 0, ap);
-	ex_cadd(&cmd, &a, name, strlen(name));
-	return (ex_source(sp, &cmd));
-}
-
-/*
- * ex_run_str --
- *	Set up a string of ex commands to run.
- *
- * PUBLIC: int ex_run_str __P((SCR *, char *, char *, size_t, int, int));
- */
-int
-ex_run_str(sp, name, str, len, ex_flags, nocopy)
-	SCR *sp;
-	char *name, *str;
-	size_t len;
-	int ex_flags, nocopy;
-{
-	GS *gp;
-	EXCMD *ecp;
-
-	gp = sp->gp;
-	if (EXCMD_RUNNING(gp)) {
-		CALLOC_RET(sp, ecp, EXCMD *, 1, sizeof(EXCMD));
-		LIST_INSERT_HEAD(&gp->ecq, ecp, q);
-	} else
-		ecp = &gp->excmd;
-
-	F_INIT(ecp,
-	    ex_flags ? E_BLIGNORE | E_NOAUTO | E_NOPRDEF | E_VLITONLY : 0);
-
-	if (nocopy)
-		ecp->cp = str;
-	else
-		if ((ecp->cp = v_strdup(sp, str, len)) == NULL)
-			return (1);
-	ecp->clen = len;
-
-	if (name == NULL)
-		ecp->if_name = NULL;
-	else {
-		if ((ecp->if_name = v_strdup(sp, name, strlen(name))) == NULL)
-			return (1);
-		ecp->if_lno = 1;
-		F_SET(ecp, E_NAMEDISCARD);
-	}
-
-	return (0);
-}
-
-/*
- * exrc_isok --
- *	Check a .exrc file for source-ability.
- *
- * !!!
- * Historically, vi read the $HOME and local .exrc files if they were owned
- * by the user's real ID, or the "sourceany" option was set, regardless of
- * any other considerations.  We no longer support the sourceany option as
- * it's a security problem of mammoth proportions.  We require the system
- * .exrc file to be owned by root, the $HOME .exrc file to be owned by the
- * user's effective ID (or that the user's effective ID be root) and the
- * local .exrc files to be owned by the user's effective ID.  In all cases,
- * the file cannot be writeable by anyone other than its owner.
- *
- * In O'Reilly ("Learning the VI Editor", Fifth Ed., May 1992, page 106),
- * it notes that System V release 3.2 and later has an option "[no]exrc".
- * The behavior is that local .exrc files are read only if the exrc option
- * is set.  The default for the exrc option was off, so, by default, local
- * .exrc files were not read.  The problem this was intended to solve was
- * that System V permitted users to give away files, so there's no possible
- * ownership or writeability test to ensure that the file is safe.
- *
- * POSIX 1003.2-1992 standardized exrc as an option.  It required the exrc
- * option to be off by default, thus local .exrc files are not to be read
- * by default.  The Rationale noted (incorrectly) that this was a change
- * to historic practice, but correctly noted that a default of off improves
- * system security.  POSIX also required that vi check the effective user
- * ID instead of the real user ID, which is why we've switched from historic
- * practice.
- *
- * We initialize the exrc variable to off.  If it's turned on by the system
- * or $HOME .exrc files, and the local .exrc file passes the ownership and
- * writeability tests, then we read it.  This breaks historic 4BSD practice,
- * but it gives us a measure of security on systems where users can give away
- * files.
- */
-static enum rc
-exrc_isok(sp, sbp, path, rootown, rootid)
-	SCR *sp;
-	struct stat *sbp;
-	char *path;
-	int rootown, rootid;
-{
-	enum { ROOTOWN, OWN, WRITER } etype;
-	uid_t euid;
-	int nf1, nf2;
-	char *a, *b, buf[MAXPATHLEN];
-
-	/* Check for the file's existence. */
-	if (stat(path, sbp))
-		return (NOEXIST);
-
-	/* Check ownership permissions. */
-	euid = geteuid();
-	if (!(rootown && sbp->st_uid == 0) &&
-	    !(rootid && euid == 0) && sbp->st_uid != euid) {
-		etype = rootown ? ROOTOWN : OWN;
-		goto denied;
-	}
-
-	/* Check writeability. */
-	if (sbp->st_mode & (S_IWGRP | S_IWOTH)) {
-		etype = WRITER;
-		goto denied;
-	}
-	return (RCOK);
-
-denied:	a = msg_print(sp, path, &nf1);
-	if (strchr(path, '/') == NULL && getcwd(buf, sizeof(buf)) != NULL) {
-		b = msg_print(sp, buf, &nf2);
-		switch (etype) {
-		case ROOTOWN:
-			msgq(sp, M_ERR,
-			    "125|%s/%s: not sourced: not owned by you or root",
-			    b, a);
-			break;
-		case OWN:
-			msgq(sp, M_ERR,
-			    "126|%s/%s: not sourced: not owned by you", b, a);
-			break;
-		case WRITER:
-			msgq(sp, M_ERR,
-    "127|%s/%s: not sourced: writeable by a user other than the owner", b, a);
-			break;
-		}
-		if (nf2)
-			FREE_SPACE(sp, b, 0);
-	} else
-		switch (etype) {
-		case ROOTOWN:
-			msgq(sp, M_ERR,
-			    "128|%s: not sourced: not owned by you or root", a);
-			break;
-		case OWN:
-			msgq(sp, M_ERR,
-			    "129|%s: not sourced: not owned by you", a);
-			break;
-		case WRITER:
-			msgq(sp, M_ERR,
-	    "130|%s: not sourced: writeable by a user other than the owner", a);
-			break;
-		}
-
-	if (nf1)
-		FREE_SPACE(sp, a, 0);
-	return (NOPERM);
-}