830 lines
17 KiB
C
830 lines
17 KiB
C
/*-
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* Copyright (c) 2012 Dag-Erling Smørgrav
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer
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* in this position and unchanged.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id$
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <security/pam_appl.h>
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#include <security/openpam.h>
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#include "t.h"
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static char filename[1024];
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static FILE *f;
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/*
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* Open the temp file and immediately unlink it so it doesn't leak in case
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* of premature exit.
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*/
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static void
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orw_open(void)
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{
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int fd;
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if ((fd = open(filename, O_RDWR|O_CREAT|O_TRUNC, 0600)) < 0)
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err(1, "%s(): %s", __func__, filename);
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if ((f = fdopen(fd, "r+")) == NULL)
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err(1, "%s(): %s", __func__, filename);
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if (unlink(filename) < 0)
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err(1, "%s(): %s", __func__, filename);
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}
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/*
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* Write text to the temp file.
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*/
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static void
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orw_output(const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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vfprintf(f, fmt, ap);
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va_end(ap);
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if (ferror(f))
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err(1, "%s", filename);
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}
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/*
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* Rewind the temp file.
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*/
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static void
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orw_rewind(void)
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{
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errno = 0;
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rewind(f);
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if (errno != 0)
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err(1, "%s(): %s", __func__, filename);
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}
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/*
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* Read a word from the temp file and verify that the result matches our
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* expectations: whether a word was read at all, how many lines were read
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* (in case of quoted or escaped newlines), whether we reached the end of
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* the file and whether we reached the end of the line.
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*/
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static int
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orw_expect(const char *expected, int lines, int eof, int eol)
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{
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int ch, lineno = 0;
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char *got;
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size_t len;
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got = openpam_readword(f, &lineno, &len);
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if (ferror(f))
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err(1, "%s(): %s", __func__, filename);
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if (expected != NULL && got == NULL) {
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t_verbose("expected <<%s>>, got nothing\n", expected);
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return (0);
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}
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if (expected == NULL && got != NULL) {
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t_verbose("expected nothing, got <<%s>>\n", got);
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return (0);
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}
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if (expected != NULL && got != NULL && strcmp(expected, got) != 0) {
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t_verbose("expected <<%s>>, got <<%s>>\n", expected, got);
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return (0);
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}
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if (lineno != lines) {
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t_verbose("expected to advance %d lines, advanced %d lines\n",
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lines, lineno);
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return (0);
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}
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if (eof && !feof(f)) {
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t_verbose("expected EOF, but didn't get it\n");
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return (0);
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}
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if (!eof && feof(f)) {
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t_verbose("didn't expect EOF, but got it anyway\n");
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return (0);
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}
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ch = fgetc(f);
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if (ferror(f))
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err(1, "%s(): %s", __func__, filename);
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if (eol && ch != '\n') {
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t_verbose("expected EOL, but didn't get it\n");
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return (0);
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}
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if (!eol && ch == '\n') {
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t_verbose("didn't expect EOL, but got it anyway\n");
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return (0);
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}
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if (ch != EOF)
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ungetc(ch, f);
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return (1);
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}
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/*
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* Close the temp file.
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*/
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void
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orw_close(void)
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{
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if (fclose(f) != 0)
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err(1, "%s(): %s", __func__, filename);
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f = NULL;
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}
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/***************************************************************************
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* Lines without words
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*/
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T_FUNC(empty_input, "empty input")
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{
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int ret;
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orw_open();
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ret = orw_expect(NULL, 0 /*lines*/, 1 /*eof*/, 0 /*eol*/);
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orw_close();
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return (ret);
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}
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T_FUNC(empty_line, "empty line")
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{
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int ret;
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orw_open();
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orw_output("\n");
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orw_rewind();
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ret = orw_expect(NULL, 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
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orw_close();
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return (ret);
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}
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T_FUNC(unterminated_line, "unterminated line")
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{
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int ret;
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orw_open();
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orw_output(" ");
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orw_rewind();
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ret = orw_expect(NULL, 0 /*lines*/, 1 /*eof*/, 0 /*eol*/);
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orw_close();
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return (ret);
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}
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T_FUNC(single_whitespace, "single whitespace")
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{
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int ret;
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orw_open();
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orw_output(" \n");
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orw_rewind();
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ret = orw_expect(NULL, 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
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orw_close();
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return (ret);
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}
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T_FUNC(multiple_whitespace, "multiple whitespace")
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{
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int ret;
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orw_open();
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orw_output(" \t\r\n");
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orw_rewind();
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ret = orw_expect(NULL, 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
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orw_close();
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return (ret);
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}
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T_FUNC(comment, "comment")
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{
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int ret;
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orw_open();
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orw_output("# comment\n");
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orw_rewind();
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ret = orw_expect(NULL, 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
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orw_close();
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return (ret);
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}
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T_FUNC(whitespace_before_comment, "whitespace before comment")
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{
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int ret;
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orw_open();
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orw_output(" # comment\n");
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orw_rewind();
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ret = orw_expect(NULL, 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
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orw_close();
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return (ret);
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}
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/***************************************************************************
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* Simple cases - no quotes or escapes
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*/
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T_FUNC(single_word, "single word")
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{
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const char *word = "hello";
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int ret;
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orw_open();
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orw_output("%s\n", word);
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orw_rewind();
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ret = orw_expect(word, 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
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orw_close();
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return (ret);
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}
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T_FUNC(single_whitespace_before_word, "single whitespace before word")
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{
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const char *word = "hello";
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int ret;
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orw_open();
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orw_output(" %s\n", word);
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orw_rewind();
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ret = orw_expect(word, 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
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orw_close();
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return (ret);
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}
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T_FUNC(double_whitespace_before_word, "double whitespace before word")
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{
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const char *word = "hello";
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int ret;
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orw_open();
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orw_output(" %s\n", word);
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orw_rewind();
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ret = orw_expect(word, 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
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orw_close();
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return (ret);
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}
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T_FUNC(single_whitespace_after_word, "single whitespace after word")
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{
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const char *word = "hello";
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int ret;
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orw_open();
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orw_output("%s \n", word);
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orw_rewind();
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ret = orw_expect(word, 0 /*lines*/, 0 /*eof*/, 0 /*eol*/);
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orw_close();
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return (ret);
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}
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T_FUNC(double_whitespace_after_word, "double whitespace after word")
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{
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const char *word = "hello";
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int ret;
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orw_open();
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orw_output("%s \n", word);
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orw_rewind();
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ret = orw_expect(word, 0 /*lines*/, 0 /*eof*/, 0 /*eol*/);
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orw_close();
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return (ret);
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}
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T_FUNC(comment_after_word, "comment after word")
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{
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const char *word = "hello";
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int ret;
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orw_open();
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orw_output("%s # comment\n", word);
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orw_rewind();
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ret = orw_expect(word, 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
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orw_expect(NULL, 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
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orw_close();
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return (ret);
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}
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T_FUNC(word_containing_hash, "word containing hash")
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{
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const char *word = "hello#world";
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int ret;
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orw_open();
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orw_output("%s\n", word);
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orw_rewind();
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ret = orw_expect(word, 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
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orw_close();
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return (ret);
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}
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T_FUNC(two_words, "two words")
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{
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const char *word[] = { "hello", "world" };
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int ret;
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orw_open();
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orw_output("%s %s\n", word[0], word[1]);
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orw_rewind();
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ret = orw_expect(word[0], 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
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orw_expect(word[1], 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
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orw_close();
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return (ret);
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}
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/***************************************************************************
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* Escapes
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*/
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T_FUNC(naked_escape, "naked escape")
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{
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int ret;
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orw_open();
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orw_output("\\");
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orw_rewind();
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ret = orw_expect(NULL, 0 /*lines*/, 1 /*eof*/, 0 /*eol*/);
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orw_close();
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return (ret);
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}
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T_FUNC(escaped_escape, "escaped escape")
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{
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int ret;
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orw_open();
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orw_output("\\\\\n");
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orw_rewind();
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ret = orw_expect("\\", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
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orw_close();
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return (ret);
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}
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T_FUNC(escaped_whitespace, "escaped whitespace")
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{
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int ret;
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orw_open();
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orw_output("\\ \\\t \\\r \\\n\n");
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orw_rewind();
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ret = orw_expect(" ", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
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orw_expect("\t", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
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orw_expect("\r", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
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/* this last one is a line continuation */
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orw_expect(NULL, 1 /*lines*/, 0 /*eof*/, 1 /*eol*/);
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orw_close();
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return (ret);
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}
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T_FUNC(escaped_newline_before_word, "escaped newline before word")
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{
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int ret;
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orw_open();
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orw_output("\\\nhello world\n");
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orw_rewind();
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ret = orw_expect("hello", 1 /*lines*/, 0 /*eof*/, 0 /*eol*/);
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orw_close();
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return (ret);
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}
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T_FUNC(escaped_newline_within_word, "escaped newline within word")
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{
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int ret;
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orw_open();
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orw_output("hello\\\nworld\n");
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orw_rewind();
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ret = orw_expect("helloworld", 1 /*lines*/, 0 /*eof*/, 1 /*eol*/);
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orw_close();
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return (ret);
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}
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T_FUNC(escaped_newline_after_word, "escaped newline after word")
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{
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int ret;
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orw_open();
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orw_output("hello\\\n world\n");
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orw_rewind();
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ret = orw_expect("hello", 1 /*lines*/, 0 /*eof*/, 0 /*eol*/);
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orw_close();
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return (ret);
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}
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T_FUNC(escaped_letter, "escaped letter")
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{
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int ret;
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orw_open();
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orw_output("\\z\n");
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orw_rewind();
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ret = orw_expect("z", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
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orw_close();
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return (ret);
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}
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/***************************************************************************
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* Quotes
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*/
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T_FUNC(naked_single_quote, "naked single quote")
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{
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int ret;
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orw_open();
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orw_output("'");
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orw_rewind();
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ret = orw_expect(NULL, 0 /*lines*/, 1 /*eof*/, 0 /*eol*/);
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orw_close();
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return (ret);
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}
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T_FUNC(naked_double_quote, "naked double quote")
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{
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int ret;
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orw_open();
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orw_output("\"");
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orw_rewind();
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ret = orw_expect(NULL, 0 /*lines*/, 1 /*eof*/, 0 /*eol*/);
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orw_close();
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return (ret);
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}
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T_FUNC(empty_single_quotes, "empty single quotes")
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{
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int ret;
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orw_open();
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orw_output("''\n");
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orw_rewind();
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ret = orw_expect("", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
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orw_close();
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return (ret);
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}
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T_FUNC(empty_double_quotes, "empty double quotes")
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{
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int ret;
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orw_open();
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orw_output("\"\"\n");
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orw_rewind();
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ret = orw_expect("", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
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orw_close();
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return (ret);
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}
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T_FUNC(single_quotes_within_double_quotes, "single quotes within double quotes")
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{
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int ret;
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orw_open();
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orw_output("\"' '\"\n");
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orw_rewind();
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ret = orw_expect("' '", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
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orw_close();
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return (ret);
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}
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T_FUNC(double_quotes_within_single_quotes, "double quotes within single quotes")
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{
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int ret;
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orw_open();
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orw_output("'\" \"'\n");
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orw_rewind();
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ret = orw_expect("\" \"", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
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orw_close();
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return (ret);
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}
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T_FUNC(single_quoted_whitespace, "single-quoted whitespace")
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{
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int ret;
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orw_open();
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orw_output("' ' '\t' '\r' '\n'\n");
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orw_rewind();
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ret = orw_expect(" ", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
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orw_expect("\t", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
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orw_expect("\r", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
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orw_expect("\n", 1 /*lines*/, 0 /*eof*/, 1 /*eol*/);
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orw_close();
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return (ret);
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}
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T_FUNC(double_quoted_whitespace, "double-quoted whitespace")
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{
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int ret;
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orw_open();
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orw_output("\" \" \"\t\" \"\r\" \"\n\"\n");
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orw_rewind();
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||
ret = orw_expect(" ", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
|
||
orw_expect("\t", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
|
||
orw_expect("\r", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
|
||
orw_expect("\n", 1 /*lines*/, 0 /*eof*/, 1 /*eol*/);
|
||
orw_close();
|
||
return (ret);
|
||
}
|
||
|
||
T_FUNC(single_quoted_words, "single-quoted words")
|
||
{
|
||
int ret;
|
||
|
||
orw_open();
|
||
orw_output("'hello world'\n");
|
||
orw_rewind();
|
||
ret = orw_expect("hello world", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
|
||
orw_close();
|
||
return (ret);
|
||
}
|
||
|
||
T_FUNC(double_quoted_words, "double-quoted words")
|
||
{
|
||
int ret;
|
||
|
||
orw_open();
|
||
orw_output("\"hello world\"\n");
|
||
orw_rewind();
|
||
ret = orw_expect("hello world", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
|
||
orw_close();
|
||
return (ret);
|
||
}
|
||
|
||
|
||
/***************************************************************************
|
||
* Combinations of escape and quotes
|
||
*/
|
||
|
||
T_FUNC(escaped_single_quote,
|
||
"escaped single quote")
|
||
{
|
||
int ret;
|
||
|
||
orw_open();
|
||
orw_output("\\'\n");
|
||
orw_rewind();
|
||
ret = orw_expect("'", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
|
||
orw_close();
|
||
return (ret);
|
||
}
|
||
|
||
T_FUNC(escaped_double_quote,
|
||
"escaped double quote")
|
||
{
|
||
int ret;
|
||
|
||
orw_open();
|
||
orw_output("\\\"\n");
|
||
orw_rewind();
|
||
ret = orw_expect("\"", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
|
||
orw_close();
|
||
return (ret);
|
||
}
|
||
|
||
T_FUNC(escaped_whitespace_within_single_quotes,
|
||
"escaped whitespace within single quotes")
|
||
{
|
||
int ret;
|
||
|
||
orw_open();
|
||
orw_output("'\\ ' '\\\t' '\\\r' '\\\n'\n");
|
||
orw_rewind();
|
||
ret = orw_expect("\\ ", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
|
||
orw_expect("\\\t", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
|
||
orw_expect("\\\r", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
|
||
orw_expect("\\\n", 1 /*lines*/, 0 /*eof*/, 1 /*eol*/);
|
||
orw_close();
|
||
return (ret);
|
||
}
|
||
|
||
T_FUNC(escaped_whitespace_within_double_quotes,
|
||
"escaped whitespace within double quotes")
|
||
{
|
||
int ret;
|
||
|
||
orw_open();
|
||
orw_output("\"\\ \" \"\\\t\" \"\\\r\" \"\\\n\"\n");
|
||
orw_rewind();
|
||
ret = orw_expect("\\ ", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
|
||
orw_expect("\\\t", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
|
||
orw_expect("\\\r", 0 /*lines*/, 0 /*eof*/, 0 /*eol*/) &&
|
||
/* this last one is a line continuation */
|
||
orw_expect("", 1 /*lines*/, 0 /*eof*/, 1 /*eol*/);
|
||
orw_close();
|
||
return (ret);
|
||
}
|
||
|
||
T_FUNC(escaped_letter_within_single_quotes,
|
||
"escaped letter within single quotes")
|
||
{
|
||
int ret;
|
||
|
||
orw_open();
|
||
orw_output("'\\z'\n");
|
||
orw_rewind();
|
||
ret = orw_expect("\\z", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
|
||
orw_close();
|
||
return (ret);
|
||
}
|
||
|
||
T_FUNC(escaped_letter_within_double_quotes,
|
||
"escaped letter within double quotes")
|
||
{
|
||
int ret;
|
||
|
||
orw_open();
|
||
orw_output("\"\\z\"\n");
|
||
orw_rewind();
|
||
ret = orw_expect("\\z", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
|
||
orw_close();
|
||
return (ret);
|
||
}
|
||
|
||
T_FUNC(escaped_escape_within_single_quotes,
|
||
"escaped escape within single quotes")
|
||
{
|
||
int ret;
|
||
|
||
orw_open();
|
||
orw_output("'\\\\'\n");
|
||
orw_rewind();
|
||
ret = orw_expect("\\\\", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
|
||
orw_close();
|
||
return (ret);
|
||
}
|
||
|
||
T_FUNC(escaped_escape_within_double_quotes,
|
||
"escaped escape within double quotes")
|
||
{
|
||
int ret;
|
||
|
||
orw_open();
|
||
orw_output("\"\\\\\"\n");
|
||
orw_rewind();
|
||
ret = orw_expect("\\", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
|
||
orw_close();
|
||
return (ret);
|
||
}
|
||
|
||
T_FUNC(escaped_single_quote_within_single_quotes,
|
||
"escaped single quote within single quotes")
|
||
{
|
||
int ret;
|
||
|
||
orw_open();
|
||
orw_output("'\\''\n");
|
||
orw_rewind();
|
||
ret = orw_expect(NULL, 1 /*lines*/, 1 /*eof*/, 0 /*eol*/);
|
||
orw_close();
|
||
return (ret);
|
||
}
|
||
|
||
T_FUNC(escaped_double_quote_within_single_quotes,
|
||
"escaped double quote within single quotes")
|
||
{
|
||
int ret;
|
||
|
||
orw_open();
|
||
orw_output("'\\\"'\n");
|
||
orw_rewind();
|
||
ret = orw_expect("\\\"", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
|
||
orw_close();
|
||
return (ret);
|
||
}
|
||
|
||
T_FUNC(escaped_single_quote_within_double_quotes,
|
||
"escaped single quote within double quotes")
|
||
{
|
||
int ret;
|
||
|
||
orw_open();
|
||
orw_output("\"\\'\"\n");
|
||
orw_rewind();
|
||
ret = orw_expect("\\'", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
|
||
orw_close();
|
||
return (ret);
|
||
}
|
||
|
||
T_FUNC(escaped_double_quote_within_double_quotes,
|
||
"escaped double quote within double quotes")
|
||
{
|
||
int ret;
|
||
|
||
orw_open();
|
||
orw_output("\"\\\"\"\n");
|
||
orw_rewind();
|
||
ret = orw_expect("\"", 0 /*lines*/, 0 /*eof*/, 1 /*eol*/);
|
||
orw_close();
|
||
return (ret);
|
||
}
|
||
|
||
|
||
/***************************************************************************
|
||
* Boilerplate
|
||
*/
|
||
|
||
const struct t_test *t_plan[] = {
|
||
T(empty_input),
|
||
T(empty_line),
|
||
T(single_whitespace),
|
||
T(multiple_whitespace),
|
||
T(comment),
|
||
T(whitespace_before_comment),
|
||
|
||
T(single_word),
|
||
T(single_whitespace_before_word),
|
||
T(double_whitespace_before_word),
|
||
T(single_whitespace_after_word),
|
||
T(double_whitespace_after_word),
|
||
T(comment_after_word),
|
||
T(word_containing_hash),
|
||
T(two_words),
|
||
|
||
T(naked_escape),
|
||
T(escaped_escape),
|
||
T(escaped_whitespace),
|
||
T(escaped_newline_before_word),
|
||
T(escaped_newline_within_word),
|
||
T(escaped_newline_after_word),
|
||
T(escaped_letter),
|
||
|
||
T(naked_single_quote),
|
||
T(naked_double_quote),
|
||
T(empty_single_quotes),
|
||
T(empty_double_quotes),
|
||
T(single_quotes_within_double_quotes),
|
||
T(double_quotes_within_single_quotes),
|
||
T(single_quoted_whitespace),
|
||
T(double_quoted_whitespace),
|
||
T(single_quoted_words),
|
||
T(double_quoted_words),
|
||
|
||
T(escaped_single_quote),
|
||
T(escaped_double_quote),
|
||
T(escaped_whitespace_within_single_quotes),
|
||
T(escaped_whitespace_within_double_quotes),
|
||
T(escaped_letter_within_single_quotes),
|
||
T(escaped_letter_within_double_quotes),
|
||
T(escaped_escape_within_single_quotes),
|
||
T(escaped_escape_within_double_quotes),
|
||
T(escaped_single_quote_within_single_quotes),
|
||
T(escaped_double_quote_within_single_quotes),
|
||
T(escaped_single_quote_within_double_quotes),
|
||
T(escaped_double_quote_within_double_quotes),
|
||
|
||
NULL
|
||
};
|
||
|
||
const struct t_test **
|
||
t_prepare(int argc, char *argv[])
|
||
{
|
||
|
||
(void)argc;
|
||
(void)argv;
|
||
snprintf(filename, sizeof filename, "%s.%d.tmp", t_progname, getpid());
|
||
if (filename == NULL)
|
||
err(1, "asprintf()");
|
||
return (t_plan);
|
||
}
|
||
|
||
void
|
||
t_cleanup(void)
|
||
{
|
||
}
|