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Diffstat (limited to 'i/pc104/initrd/conf/busybox/coreutils/echo.c')
-rw-r--r--i/pc104/initrd/conf/busybox/coreutils/echo.c159
1 files changed, 159 insertions, 0 deletions
diff --git a/i/pc104/initrd/conf/busybox/coreutils/echo.c b/i/pc104/initrd/conf/busybox/coreutils/echo.c
new file mode 100644
index 0000000..8270fc0
--- /dev/null
+++ b/i/pc104/initrd/conf/busybox/coreutils/echo.c
@@ -0,0 +1,159 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * echo implementation for busybox
+ *
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ *
+ * 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>
+#include <string.h>
+#include <stdlib.h>
+#include "busybox.h"
+
+int bb_echo(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) {
+ int c;
+
+ while ((c = *(*argv)++)) {
+ if (c == eflag) { /* Check for escape seq. */
+ if (**argv == 'c') {
+ /* '\c' means cancel newline and
+ * ignore all subsequent chars. */
+ return 0;
+ }
+#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
+ return 0;
+}
+
+int echo_main(int argc, char** argv);
+int echo_main(int argc, char** argv)
+{
+ (void)bb_echo(argv);
+ 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
+ */