Module Name: src Committed By: christos Date: Thu Apr 5 18:44:57 UTC 2018
Modified Files: src/bin/ed: ed.1 main.c Log Message: add -S to disable ! commands. To generate a diff of this commit: cvs rdiff -u -r1.31 -r1.32 src/bin/ed/ed.1 cvs rdiff -u -r1.28 -r1.29 src/bin/ed/main.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
Modified files: Index: src/bin/ed/ed.1 diff -u src/bin/ed/ed.1:1.31 src/bin/ed/ed.1:1.32 --- src/bin/ed/ed.1:1.31 Mon Jul 3 17:33:23 2017 +++ src/bin/ed/ed.1 Thu Apr 5 14:44:57 2018 @@ -1,4 +1,4 @@ -.\" $NetBSD: ed.1,v 1.31 2017/07/03 21:33:23 wiz Exp $ +.\" $NetBSD: ed.1,v 1.32 2018/04/05 18:44:57 christos Exp $ .\" $OpenBSD: ed.1,v 1.42 2003/07/27 13:25:43 jmc Exp $ .\" .\" Copyright (c) 1993 Andrew Moore, Talke Studio. @@ -25,7 +25,7 @@ .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" -.Dd January 23, 2002 +.Dd April 23, 2002 .Dt ED 1 .Os .Sh NAME @@ -34,7 +34,7 @@ .Sh SYNOPSIS .Nm .Op Fl -.Op Fl Esx +.Op Fl ESsx .Op Fl p Ar string .Op Ar file .Sh DESCRIPTION @@ -130,6 +130,12 @@ option (deprecated). .It Fl E Enables the use of extended regular expressions instead of the basic regular expressions that are normally used. +.It Fl S +Disables using of the +.Dq ! +command (execuring a subshell). +Intended to be used by batch jobs like +.Xr patch 1 . .It Fl p Ar string Specifies a command prompt. This may be toggled on and off with the @@ -955,6 +961,7 @@ but any changes to the buffer are lost. .Xr sed 1 , .Xr sh 1 , .Xr vi 1 , +.Xr patch 1 , .Xr regex 3 .Pp USD:09-10 Index: src/bin/ed/main.c diff -u src/bin/ed/main.c:1.28 src/bin/ed/main.c:1.29 --- src/bin/ed/main.c:1.28 Wed Mar 2 14:11:28 2016 +++ src/bin/ed/main.c Thu Apr 5 14:44:57 2018 @@ -1,4 +1,4 @@ -/* $NetBSD: main.c,v 1.28 2016/03/02 19:11:28 christos Exp $ */ +/* $NetBSD: main.c,v 1.29 2018/04/05 18:44:57 christos Exp $ */ /* main.c: This file contains the main control and user-interface routines for the ed line editor. */ @@ -39,7 +39,7 @@ __COPYRIGHT( #if 0 static char *rcsid = "@(#)main.c,v 1.1 1994/02/01 00:34:42 alm Exp"; #else -__RCSID("$NetBSD: main.c,v 1.28 2016/03/02 19:11:28 christos Exp $"); +__RCSID("$NetBSD: main.c,v 1.29 2018/04/05 18:44:57 christos Exp $"); #endif #endif /* not lint */ @@ -94,6 +94,7 @@ int mutex = 0; /* if set, signals set int red = 0; /* if set, restrict shell/directory access */ int ere = 0; /* if set, use extended regexes */ int scripted = 0; /* if set, suppress diagnostics */ +int secure = 0; /* is set, ! is not allowed */ int sigflags = 0; /* if set, signals received while mutex set */ int sigactive = 0; /* if set, signal handlers are enabled */ @@ -105,7 +106,7 @@ const char *prompt; /* command-line pr const char *dps = "*"; /* default command-line prompt */ -static const char usage[] = "Usage: %s [-] [-sxE] [-p string] [name]\n"; +static const char usage[] = "Usage: %s [-] [-ESsx] [-p string] [name]\n"; /* ed: line editor */ int @@ -118,7 +119,7 @@ main(int ac, char *av[]) red = (n = strlen(argv[0])) > 2 && argv[0][n - 3] == 'r'; top: - while ((c = getopt(argc, argv, "p:sxE")) != -1) + while ((c = getopt(argc, argv, "p:sxES")) != -1) switch(c) { case 'p': /* set prompt */ prompt = optarg; @@ -137,6 +138,9 @@ top: case 'E': ere = REG_EXTENDED; break; + case 'S': /* ! is not allowed */ + secure = 1; + break; default: fprintf(stderr, usage, getprogname()); exit(1); @@ -861,6 +865,10 @@ exec_command(void) printf("%ld\n", addr_cnt ? second_addr : addr_last); break; case '!': + if (secure) { + seterrmsg("'!' not allowed"); + return ERR; + } if (addr_cnt > 0) { seterrmsg("unexpected address"); return ERR;