diff options
Diffstat (limited to 'coreutils')
| -rw-r--r-- | coreutils/Config.in | 1 | ||||
| -rw-r--r-- | coreutils/echo.c | 140 |
2 files changed, 3 insertions, 138 deletions
diff --git a/coreutils/Config.in b/coreutils/Config.in index 49b884b70..9e06c0d80 100644 --- a/coreutils/Config.in +++ b/coreutils/Config.in @@ -156,6 +156,7 @@ config CONFIG_ECHO help echo is used to print a specified string to stdout. +# this entry also appears in shell/Config.in, next to the echo builtin config CONFIG_FEATURE_FANCY_ECHO bool " Enable echo options (-n and -e)" default y diff --git a/coreutils/echo.c b/coreutils/echo.c index 539640fb0..595e6defe 100644 --- a/coreutils/echo.c +++ b/coreutils/echo.c @@ -1,9 +1,5 @@ -/* vi: set sw=4 ts=4: */ /* - * echo implementation for busybox - * - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. + * echo applet implementation for busybox * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -19,20 +15,6 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * - * Original copyright notice is retained at the end of this file. - */ - -/* BB_AUDIT SUSv3 compliant -- unless configured as fancy echo. */ -/* http://www.opengroup.org/onlinepubs/007904975/utilities/echo.html */ - -/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org) - * - * Because of behavioral differences, implemented configurable SUSv3 - * or 'fancy' gnu-ish behaviors. Also, reduced size and fixed bugs. - * 1) In handling '\c' escape, the previous version only suppressed the - * trailing newline. SUSv3 specifies _no_ output after '\c'. - * 2) SUSv3 specifies that octal escapes are of the form \0{#{#{#}}}. - * The previous version version did not allow 4-digit octals. */ #include <stdio.h> @@ -42,124 +24,6 @@ extern int echo_main(int argc, char** argv) { -#ifndef CONFIG_FEATURE_FANCY_ECHO -#define eflag '\\' - ++argv; -#else - const char *p; - int nflag = 1; - int eflag = 0; - - while (*++argv && (**argv == '-')) { - /* If it appears that we are handling options, then make sure - * that all of the options specified are actually valid. - * Otherwise, the string should just be echoed. - */ - - if (!*(p = *argv + 1)) { /* A single '-', so echo it. */ - goto just_echo; - } - - do { - if (strrchr("neE", *p) == 0) { - goto just_echo; - } - } while (*++p); - - /* All of the options in this arg are valid, so handle them. */ - p = *argv + 1; - do { - if (*p == 'n') { - nflag = 0; - } else if (*p == 'e') { - eflag = '\\'; - } else { - eflag = 0; - } - } while (*++p); - } - -just_echo: -#endif - while (*argv) { - register int c; - - while ((c = *(*argv)++)) { - if (c == eflag) { /* Check for escape seq. */ - if (**argv == 'c') { - /* '\c' means cancel newline and - * ignore all subsequent chars. */ - goto DONE; - } -#ifndef CONFIG_FEATURE_FANCY_ECHO - /* SUSv3 specifies that octal escapes must begin with '0'. */ - if (((unsigned int)(**argv - '1')) >= 7) -#endif - { - /* Since SUSv3 mandates a first digit of 0, 4-digit octals - * of the form \0### are accepted. */ - if ((**argv == '0') && (((unsigned int)(argv[0][1] - '0')) < 8)) { - (*argv)++; - } - /* bb_process_escape_sequence can handle nul correctly */ - c = bb_process_escape_sequence((const char **) argv); - } - } - putchar(c); - } - - if (*++argv) { - putchar(' '); - } - } - -#ifdef CONFIG_FEATURE_FANCY_ECHO - if (nflag) { - putchar('\n'); - } -#else - putchar('\n'); -#endif - -DONE: + (void)bb_echo(argc, argv); bb_fflush_stdout_and_exit(EXIT_SUCCESS); } - -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * Kenneth Almquist. - * - * 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. <BSD Advertising Clause omitted per the July 22, 1999 licensing change - * ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change> - * - * 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. - * - * @(#)echo.c 8.1 (Berkeley) 5/31/93 - */ |