--- /dev/null
+/* vi: set sw=4 ts=4: */
+/*
+ * echo implementation for busybox - used as a helper for testsuite/*
+ * on systems lacking "echo -en"
+ *
+ * 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 did not allow 4-digit octals.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <limits.h>
+
+#define WANT_HEX_ESCAPES 1
+
+/* Usual "this only works for ascii compatible encodings" disclaimer. */
+#undef _tolower
+#define _tolower(X) ((X)|((char) 0x20))
+
+static char bb_process_escape_sequence(const char **ptr)
+{
+ static const char charmap[] = {
+ 'a', 'b', 'f', 'n', 'r', 't', 'v', '\\', 0,
+ '\a', '\b', '\f', '\n', '\r', '\t', '\v', '\\', '\\' };
+
+ const char *p;
+ const char *q;
+ unsigned int num_digits;
+ unsigned int r;
+ unsigned int n;
+ unsigned int d;
+ unsigned int base;
+
+ num_digits = n = 0;
+ base = 8;
+ q = *ptr;
+
+#ifdef WANT_HEX_ESCAPES
+ if (*q == 'x') {
+ ++q;
+ base = 16;
+ ++num_digits;
+ }
+#endif
+
+ do {
+ d = (unsigned char)(*q) - '0';
+#ifdef WANT_HEX_ESCAPES
+ if (d >= 10) {
+ d = (unsigned char)(_tolower(*q)) - 'a' + 10;
+ }
+#endif
+
+ if (d >= base) {
+#ifdef WANT_HEX_ESCAPES
+ if ((base == 16) && (!--num_digits)) {
+/* return '\\'; */
+ --q;
+ }
+#endif
+ break;
+ }
+
+ r = n * base + d;
+ if (r > UCHAR_MAX) {
+ break;
+ }
+
+ n = r;
+ ++q;
+ } while (++num_digits < 3);
+
+ if (num_digits == 0) { /* mnemonic escape sequence? */
+ p = charmap;
+ do {
+ if (*p == *q) {
+ q++;
+ break;
+ }
+ } while (*++p);
+ n = *(p + (sizeof(charmap)/2));
+ }
+
+ *ptr = q;
+
+ return (char) n;
+}
+
+
+int main(int argc, char **argv)
+{
+ const char *arg;
+ const char *p;
+ char nflag = 1;
+ char eflag = 0;
+
+ /* We must check that stdout is not closed. */
+ if (dup2(1, 1) != 1)
+ return -1;
+
+ while (1) {
+ arg = *++argv;
+ if (!arg)
+ goto newline_ret;
+ if (*arg != '-')
+ break;
+
+ /* 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.
+ */
+ p = arg + 1;
+ if (!*p) /* A single '-', so echo it. */
+ goto just_echo;
+
+ do {
+ if (!strrchr("neE", *p))
+ goto just_echo;
+ } while (*++p);
+
+ /* All of the options in this arg are valid, so handle them. */
+ p = arg + 1;
+ do {
+ if (*p == 'n')
+ nflag = 0;
+ if (*p == 'e')
+ eflag = '\\';
+ } while (*++p);
+ }
+ just_echo:
+ while (1) {
+ /* arg is already == *argv and isn't NULL */
+ int c;
+
+ if (!eflag) {
+ /* optimization for very common case */
+ fputs(arg, stdout);
+ } else while ((c = *arg++)) {
+ if (c == eflag) { /* Check for escape seq. */
+ if (*arg == 'c') {
+ /* '\c' means cancel newline and
+ * ignore all subsequent chars. */
+ goto ret;
+ }
+ {
+ /* Since SUSv3 mandates a first digit of 0, 4-digit octals
+ * of the form \0### are accepted. */
+ if (*arg == '0') {
+ /* NB: don't turn "...\0" into "...\" */
+ if (arg[1] && ((unsigned char)(arg[1]) - '0') < 8) {
+ arg++;
+ }
+ }
+ /* bb_process_escape_sequence handles NUL correctly
+ * ("...\" case. */
+ c = bb_process_escape_sequence(&arg);
+ }
+ }
+ putchar(c);
+ }
+
+ arg = *++argv;
+ if (!arg)
+ break;
+ putchar(' ');
+ }
+
+ newline_ret:
+ if (nflag) {
+ putchar('\n');
+ }
+ ret:
+ return fflush(stdout);
+}
+
+/*-
+ * 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
+ */
#
# License is GPLv2, see LICENSE in the busybox tarball for full license text.
-# This file defines two functions, "testing" and "optionflag"
+# This file defines two functions, "testing" and "optional"
+# and a couple more...
# The following environment variables may be set to enable optional behavior
# in "testing":
# VERBOSE - Print the diff -u of each failed test case.
# DEBUG - Enable command tracing.
-# SKIP - do not perform this test (this is set by "optionflag")
+# SKIP - do not perform this test (this is set by "optional")
#
# The "testing" function takes five arguments:
-# $1) Description to display when running command
-# $2) Command line arguments to command
-# $3) Expected result (on stdout)
-# $4) Data written to file "input"
-# $5) Data written to stdin
+# $1) Test description
+# $2) Command(s) to run. May have pipes, redirects, etc
+# $3) Expected result on stdout
+# $4) Data to be written to file "input"
+# $5) Data to be written to stdin
#
-# The exit value of testing is the exit value of the command it ran.
+# The exit value of testing is the exit value of $2 it ran.
#
# The environment variable "FAILCOUNT" contains a cumulative total of the
# number of failed tests.
# The "optional" function is used to skip certain tests, ala:
-# optionflag CONFIG_FEATURE_THINGY
+# optional CONFIG_FEATURE_THINGY
#
# The "optional" function checks the environment variable "OPTIONFLAGS",
# which is either empty (in which case it always clears SKIP) or
export FAILCOUNT=0
export SKIP=
+# Helper for helpers. Oh my...
+test x"$ECHO" = x"" && {
+ ECHO="echo"
+ test x"`echo -ne`" = x"" || {
+ # Compile and use a replacement 'echo' which understands -e -n
+ ECHO="$PWD/echo-ne"
+ test -x "$ECHO" || {
+ gcc -Os -o "$ECHO" ../scripts/echo.c || exit 1
+ }
+ }
+ export ECHO
+}
+
# Helper functions
optional()
{
- option=`echo "$OPTIONFLAGS" | egrep "(^|:)$1(:|\$)"`
+ option=`echo ":$OPTIONFLAGS:" | grep ":$1:"`
# Not set?
if [ -z "$1" ] || [ -z "$OPTIONFLAGS" ] || [ ${#option} -ne 0 ]
then
- SKIP=""
+ SKIP=
return
fi
SKIP=1
testing()
{
NAME="$1"
- [ -z "$1" ] && NAME=$2
+ [ -z "$1" ] && NAME="$2"
if [ $# -ne 5 ]
then
return 0
fi
- echo -ne "$3" > expected
- echo -ne "$4" > input
+ $ECHO -ne "$3" > expected
+ $ECHO -ne "$4" > input
[ -z "$VERBOSE" ] || echo "echo '$5' | $2"
- echo -ne "$5" | eval "$2" > actual
+ $ECHO -ne "$5" | eval "$2" > actual
RETVAL=$?
cmp expected actual >/dev/null 2>/dev/null
{
[ $# -lt 2 ] && return
- echo -n .
+ $ECHO -n .
dest=$1
shift
# Copy utilities from command line arguments
- echo -n "Setup chroot"
+ $ECHO -n "Setup chroot"
mkchroot tmpdir4chroot $*
echo
umount -l tmpdir4chroot
rmdir tmpdir4chroot
}
-
projects / oweals / busybox.git / commitdiff