-/* 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
* 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.
*/
-#include "internal.h"
#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "busybox.h"
-static const char uname_usage[] =
- "echo [-neE] [ARG ...]\n\n"
- "Prints the specified ARGs to stdout\n\n"
- "Options:\n"
- "\t-n\tsuppress trailing newline\n"
- "\t-e\tinterpret backslash-escaped characters (i.e. \\t=tab etc)\n"
- "\t-E\tdisable interpretation of backslash-escaped characters\n";
-
-extern int
-echo_main(int argc, char** argv)
+int echo_main(int argc, char** argv)
{
- register char **ap;
- register char *p;
- register char c;
- int nflag = 0;
- int eflag = 0;
-
- ap = argv;
- if (argc)
- ap++;
- while ((p = *ap) != NULL && *p == '-') {
- if (strcmp(p, "-n")==0) {
- nflag = 1;
- } else if (strcmp(p, "-e")==0) {
- eflag = 1;
- } else if (strcmp(p, "-E")==0) {
- eflag = 0;
- }
- else if (strncmp(p, "--", 2)==0) {
- usage( uname_usage);
- }
- else break;
- ap++;
- }
- while ((p = *ap++) != NULL) {
- while ((c = *p++) != '\0') {
- if (c == '\\' && eflag) {
- switch (c = *p++) {
- case 'a': c = '\007'; break;
- case 'b': c = '\b'; break;
- case 'c': exit( 0); /* exit */
- case 'f': c = '\f'; break;
- case 'n': c = '\n'; break;
- case 'r': c = '\r'; break;
- case 't': c = '\t'; break;
- case 'v': c = '\v'; break;
- case '\\': break; /* c = '\\' */
- case '0': case '1': case '2': case '3':
- case '4': case '5': case '6': case '7':
- c -= '0';
- if (*p >= '0' && *p <= '7')
- c = c * 8 + (*p++ - '0');
- if (*p >= '0' && *p <= '7')
- c = c * 8 + (*p++ - '0');
- break;
- default:
- p--;
- break;
- }
- }
- putchar(c);
- }
- if (*ap)
- putchar(' ');
- }
- if (! nflag)
- putchar('\n');
- fflush(stdout);
- exit( 0);
+ (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. 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.
- *
- * @(#)echo.c 8.1 (Berkeley) 5/31/93
- */
-
-