343 lines
7.0 KiB
C
343 lines
7.0 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: t_openpam_readlinev.c 581 2012-04-06 01:08:37Z des $
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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 "openpam_impl.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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orlv_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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orlv_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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orlv_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 line from the temp file and verify that the result matches our
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* expectations: whether a line was read at all, how many and which words
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* it contained, how many lines were read (in case of quoted or escaped
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* newlines) and whether we reached the end of the file.
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*/
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static int
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orlv_expect(const char **expectedv, int lines, int eof)
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{
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int expectedc, gotc, i, lineno = 0;
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char **gotv;
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expectedc = 0;
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if (expectedv != NULL)
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while (expectedv[expectedc] != NULL)
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++expectedc;
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gotv = openpam_readlinev(f, &lineno, &gotc);
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if (ferror(f))
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err(1, "%s(): %s", __func__, filename);
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if (expectedv != NULL && gotv == NULL) {
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t_verbose("expected %d words, got nothing\n", expectedc);
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return (0);
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}
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if (expectedv == NULL && gotv != NULL) {
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t_verbose("expected nothing, got %d words\n", gotc);
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FREEV(gotc, gotv);
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return (0);
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}
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if (expectedv != NULL && gotv != NULL) {
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if (expectedc != gotc) {
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t_verbose("expected %d words, got %d\n",
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expectedc, gotc);
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FREEV(gotc, gotv);
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return (0);
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}
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for (i = 0; i < gotc; ++i) {
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if (strcmp(expectedv[i], gotv[i]) != 0) {
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t_verbose("word %d: expected <<%s>>, "
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"got <<%s>>\n", i, expectedv[i], gotv[i]);
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FREEV(gotc, gotv);
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return (0);
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}
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}
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FREEV(gotc, gotv);
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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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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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orlv_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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* Commonly-used lines
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*/
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static const char *empty[] = {
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NULL
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};
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static const char *hello[] = {
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"hello",
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NULL
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};
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static const char *hello_world[] = {
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"hello",
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"world",
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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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orlv_open();
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ret = orlv_expect(NULL, 0 /*lines*/, 1 /*eof*/);
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orlv_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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orlv_open();
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orlv_output("\n");
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orlv_rewind();
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ret = orlv_expect(empty, 1 /*lines*/, 0 /*eof*/);
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orlv_close();
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return (ret);
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}
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T_FUNC(unterminated_empty_line, "unterminated empty line")
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{
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int ret;
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orlv_open();
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orlv_output(" ");
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orlv_rewind();
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ret = orlv_expect(NULL, 0 /*lines*/, 1 /*eof*/);
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orlv_close();
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return (ret);
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}
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T_FUNC(whitespace, "whitespace")
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{
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int ret;
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orlv_open();
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orlv_output(" \n");
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orlv_rewind();
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ret = orlv_expect(empty, 1 /*lines*/, 0 /*eof*/);
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orlv_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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orlv_open();
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orlv_output("# comment\n");
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orlv_rewind();
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ret = orlv_expect(empty, 1 /*lines*/, 0 /*eof*/);
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orlv_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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orlv_open();
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orlv_output(" # comment\n");
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orlv_rewind();
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ret = orlv_expect(empty, 1 /*lines*/, 0 /*eof*/);
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orlv_close();
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return (ret);
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}
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/***************************************************************************
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* Simple words
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*/
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T_FUNC(one_word, "one word")
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{
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int ret;
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orlv_open();
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orlv_output("hello\n");
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orlv_rewind();
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ret = orlv_expect(hello, 1 /*lines*/, 0 /*eof*/);
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orlv_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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int ret;
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orlv_open();
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orlv_output("hello world\n");
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orlv_rewind();
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ret = orlv_expect(hello_world, 1 /*lines*/, 0 /*eof*/);
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orlv_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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orlv_open();
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orlv_output("hello world");
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orlv_rewind();
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ret = orlv_expect(hello_world, 0 /*lines*/, 1 /*eof*/);
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orlv_close();
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return (ret);
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}
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/***************************************************************************
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* Boilerplate
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*/
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const struct t_test *t_plan[] = {
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T(empty_input),
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T(empty_line),
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T(unterminated_empty_line),
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T(whitespace),
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T(comment),
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T(whitespace_before_comment),
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T(one_word),
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T(two_words),
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T(unterminated_line),
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NULL
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};
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const struct t_test **
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t_prepare(int argc, char *argv[])
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{
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(void)argc;
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(void)argv;
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snprintf(filename, sizeof filename, "%s.%d.tmp", t_progname, getpid());
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if (filename == NULL)
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err(1, "asprintf()");
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return (t_plan);
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}
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void
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t_cleanup(void)
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{
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}
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