contrib/openpam/t/t_openpam_readlinev.c

   1 /*-
   2  * Copyright (c) 2012-2017 Dag-Erling Smørgrav
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. The name of the author may not be used to endorse or promote
  14  *    products derived from this software without specific prior written
  15  *    permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  * $OpenPAM: t_openpam_readlinev.c 938 2017-04-30 21:34:42Z des $
  30  */
  31
  32 #ifdef HAVE_CONFIG_H
  33 # include "config.h"
  34 #endif
  35
  36 #include <err.h>
  37 #include <stdint.h>
  38 #include <stdio.h>
  39 #include <stdlib.h>
  40 #include <string.h>
  41
  42 #include <cryb/test.h>
  43
  44 #include <security/pam_appl.h>
  45 #include <security/openpam.h>
  46
  47 #include "openpam_impl.h"
  48
  49 #define T_FUNC(n, d)                                                    \
  50         static const char *t_ ## n ## _desc = d;                        \
  51         static int t_ ## n ## _func(OPENPAM_UNUSED(char **desc),        \
  52             OPENPAM_UNUSED(void *arg))
  53
  54 #define T(n)                                                            \
  55         t_add_test(&t_ ## n ## _func, NULL, "%s", t_ ## n ## _desc)
  56
  57 /*
  58  * Read a line from the temp file and verify that the result matches our
  59  * expectations: whether a line was read at all, how many and which words
  60  * it contained, how many lines were read (in case of quoted or escaped
  61  * newlines) and whether we reached the end of the file.
  62  */
  63 static int
  64 orlv_expect(struct t_file *tf, const char **expectedv, int lines, int eof)
  65 {
  66         int expectedc, gotc, i, lineno = 0;
  67         char **gotv;
  68         int ret;
  69
  70         ret = 1;
  71         expectedc = 0;
  72         if (expectedv != NULL)
  73                 while (expectedv[expectedc] != NULL)
  74                         ++expectedc;
  75         gotv = openpam_readlinev(tf->file, &lineno, &gotc);
  76         if (t_ferror(tf))
  77                 err(1, "%s(): %s", __func__, tf->name);
  78         if (expectedv != NULL && gotv == NULL) {
  79                 t_printv("expected %d words, got nothing\n", expectedc);
  80                 ret = 0;
  81         } else if (expectedv == NULL && gotv != NULL) {
  82                 t_printv("expected nothing, got %d words\n", gotc);
  83                 ret = 0;
  84         } else if (expectedv != NULL && gotv != NULL) {
  85                 if (expectedc != gotc) {
  86                         t_printv("expected %d words, got %d\n",
  87                             expectedc, gotc);
  88                         ret = 0;
  89                 }
  90                 for (i = 0; i < gotc; ++i) {
  91                         if (strcmp(expectedv[i], gotv[i]) != 0) {
  92                                 t_printv("word %d: expected <<%s>>, "
  93                                     "got <<%s>>\n", i, expectedv[i], gotv[i]);
  94                                 ret = 0;
  95                         }
  96                 }
  97         }
  98         FREEV(gotc, gotv);
  99         if (lineno != lines) {
 100                 t_printv("expected to advance %d lines, advanced %d lines\n",
 101                     lines, lineno);
 102                 ret = 0;
 103         }
 104         if (eof && !t_feof(tf)) {
 105                 t_printv("expected EOF, but didn't get it\n");
 106                 ret = 0;
 107         } else if (!eof && t_feof(tf)) {
 108                 t_printv("didn't expect EOF, but got it anyway\n");
 109                 ret = 0;
 110         }
 111         return (ret);
 112 }
 113
 114 \f
 115 /***************************************************************************
 116  * Commonly-used lines
 117  */
 118
 119 static const char *empty[] = {
 120         NULL
 121 };
 122
 123 static const char *hello[] = {
 124         "hello",
 125         NULL
 126 };
 127
 128 static const char *hello_world[] = {
 129         "hello",
 130         "world",
 131         NULL
 132 };
 133
 134 static const char *numbers[] = {
 135         "zero", "one", "two", "three", "four", "five", "six", "seven",
 136         "eight", "nine", "ten", "eleven", "twelve", "thirteen", "fourteen",
 137         "fifteen", "sixteen", "seventeen", "nineteen", "twenty",
 138         "twenty-one", "twenty-two", "twenty-three", "twenty-four",
 139         "twenty-five", "twenty-six", "twenty-seven", "twenty-eight",
 140         "twenty-nine", "thirty", "thirty-one", "thirty-two", "thirty-three",
 141         "thirty-four", "thirty-five", "thirty-six", "thirty-seven",
 142         "thirty-eight", "thirty-nine", "fourty", "fourty-one", "fourty-two",
 143         "fourty-three", "fourty-four", "fourty-five", "fourty-six",
 144         "fourty-seven", "fourty-eight", "fourty-nine", "fifty", "fifty-one",
 145         "fifty-two", "fifty-three", "fifty-four", "fifty-five", "fifty-six",
 146         "fifty-seven", "fifty-eight", "fifty-nine", "sixty", "sixty-one",
 147         "sixty-two", "sixty-three",
 148         NULL
 149 };
 150
 151 \f
 152 /***************************************************************************
 153  * Lines without words
 154  */
 155
 156 T_FUNC(empty_input, "empty input")
 157 {
 158         struct t_file *tf;
 159         int ret;
 160
 161         tf = t_fopen(NULL);
 162         ret = orlv_expect(tf, NULL, 0 /*lines*/, 1 /*eof*/);
 163         t_fclose(tf);
 164         return (ret);
 165 }
 166
 167 T_FUNC(empty_line, "empty line")
 168 {
 169         struct t_file *tf;
 170         int ret;
 171
 172         tf = t_fopen(NULL);
 173         t_fprintf(tf, "\n");
 174         t_frewind(tf);
 175         ret = orlv_expect(tf, empty, 1 /*lines*/, 0 /*eof*/);
 176         t_fclose(tf);
 177         return (ret);
 178 }
 179
 180 T_FUNC(unterminated_empty_line, "unterminated empty line")
 181 {
 182         struct t_file *tf;
 183         int ret;
 184
 185         tf = t_fopen(NULL);
 186         t_fprintf(tf, " ");
 187         t_frewind(tf);
 188         ret = orlv_expect(tf, NULL, 0 /*lines*/, 1 /*eof*/);
 189         t_fclose(tf);
 190         return (ret);
 191 }
 192
 193 T_FUNC(whitespace, "whitespace")
 194 {
 195         struct t_file *tf;
 196         int ret;
 197
 198         tf = t_fopen(NULL);
 199         t_fprintf(tf, " \n");
 200         t_frewind(tf);
 201         ret = orlv_expect(tf, empty, 1 /*lines*/, 0 /*eof*/);
 202         t_fclose(tf);
 203         return (ret);
 204 }
 205
 206 T_FUNC(comment, "comment")
 207 {
 208         struct t_file *tf;
 209         int ret;
 210
 211         tf = t_fopen(NULL);
 212         t_fprintf(tf, "# comment\n");
 213         t_frewind(tf);
 214         ret = orlv_expect(tf, empty, 1 /*lines*/, 0 /*eof*/);
 215         t_fclose(tf);
 216         return (ret);
 217 }
 218
 219 T_FUNC(whitespace_before_comment, "whitespace before comment")
 220 {
 221         struct t_file *tf;
 222         int ret;
 223
 224         tf = t_fopen(NULL);
 225         t_fprintf(tf, " # comment\n");
 226         t_frewind(tf);
 227         ret = orlv_expect(tf, empty, 1 /*lines*/, 0 /*eof*/);
 228         t_fclose(tf);
 229         return (ret);
 230 }
 231
 232 T_FUNC(line_continuation_within_whitespace, "line continuation within whitespace")
 233 {
 234         struct t_file *tf;
 235         int ret;
 236
 237         tf = t_fopen(NULL);
 238         t_fprintf(tf, "%s \\\n %s\n", hello_world[0], hello_world[1]);
 239         t_frewind(tf);
 240         ret = orlv_expect(tf, hello_world, 2 /*lines*/, 0 /*eof*/) &&
 241             orlv_expect(tf, NULL, 0 /*lines*/, 1 /*eof*/);
 242         t_fclose(tf);
 243         return (ret);
 244 }
 245
 246 \f
 247 /***************************************************************************
 248  * Simple words
 249  */
 250
 251 T_FUNC(one_word, "one word")
 252 {
 253         struct t_file *tf;
 254         int ret;
 255
 256         tf = t_fopen(NULL);
 257         t_fprintf(tf, "hello\n");
 258         t_frewind(tf);
 259         ret = orlv_expect(tf, hello, 1 /*lines*/, 0 /*eof*/);
 260         t_fclose(tf);
 261         return (ret);
 262 }
 263
 264 T_FUNC(two_words, "two words")
 265 {
 266         struct t_file *tf;
 267         int ret;
 268
 269         tf = t_fopen(NULL);
 270         t_fprintf(tf, "hello world\n");
 271         t_frewind(tf);
 272         ret = orlv_expect(tf, hello_world, 1 /*lines*/, 0 /*eof*/);
 273         t_fclose(tf);
 274         return (ret);
 275 }
 276
 277 T_FUNC(many_words, "many words")
 278 {
 279         struct t_file *tf;
 280         const char **word;
 281         int ret;
 282
 283         tf = t_fopen(NULL);
 284         for (word = numbers; *word; ++word)
 285                 t_fprintf(tf, " %s", *word);
 286         t_fprintf(tf, "\n");
 287         t_frewind(tf);
 288         ret = orlv_expect(tf, numbers, 1 /*lines*/, 0 /*eof*/);
 289         t_fclose(tf);
 290         return (ret);
 291 }
 292
 293 T_FUNC(unterminated_line, "unterminated line")
 294 {
 295         struct t_file *tf;
 296         int ret;
 297
 298         tf = t_fopen(NULL);
 299         t_fprintf(tf, "hello world");
 300         t_frewind(tf);
 301         ret = orlv_expect(tf, hello_world, 0 /*lines*/, 1 /*eof*/);
 302         t_fclose(tf);
 303         return (ret);
 304 }
 305
 306 \f
 307 /***************************************************************************
 308  * Boilerplate
 309  */
 310
 311 static int
 312 t_prepare(int argc, char *argv[])
 313 {
 314
 315         (void)argc;
 316         (void)argv;
 317
 318         T(empty_input);
 319         T(empty_line);
 320         T(unterminated_empty_line);
 321         T(whitespace);
 322         T(comment);
 323         T(whitespace_before_comment);
 324         T(line_continuation_within_whitespace);
 325
 326         T(one_word);
 327         T(two_words);
 328         T(many_words);
 329         T(unterminated_line);
 330
 331         return (0);
 332 }
 333
 334 int
 335 main(int argc, char *argv[])
 336 {
 337
 338         t_main(t_prepare, NULL, argc, argv);
 339 }