commit 9a1e7257a4292d3aea45c8317df3956f4331d8ce Author: Florian Weimer Date: Mon Sep 2 12:40:38 2019 +0200 Add misc/tst-mntent-autofs, testing autofs "ignore" filtering diff -rupN a/misc/Makefile b/misc/Makefile --- a/misc/Makefile 2020-01-20 15:48:16.472243494 -0500 +++ b/misc/Makefile 2020-01-20 16:03:01.291550472 -0500 @@ -76,7 +76,8 @@ install-lib := libbsd-compat.a libg.a gpl2lgpl := error.c error.h tests := tst-dirname tst-tsearch tst-fdset tst-efgcvt tst-mntent tst-hsearch \ - tst-error1 tst-pselect tst-insremque tst-mntent2 bug-hsearch1 bug18240 + tst-error1 tst-pselect tst-insremque tst-mntent2 bug-hsearch1 bug18240 \ + tst-mntent-autofs ifeq ($(run-built-tests),yes) tests: $(objpfx)tst-error1-mem endif diff -rupN a/misc/tst-mntent-autofs.c b/misc/tst-mntent-autofs.c --- a/misc/tst-mntent-autofs.c 1969-12-31 19:00:00.000000000 -0500 +++ b/misc/tst-mntent-autofs.c 2020-01-20 16:01:37.233483270 -0500 @@ -0,0 +1,141 @@ +/* Test autofs "ignore" filtering for getment_r. + Copyright (C) 2019 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +struct test_case +{ + const char *line; + struct + { + /* Like struct mntent, but with const pointers. */ + const char *mnt_fsname; + const char *mnt_dir; + const char *mnt_type; + const char *mnt_opts; + int mnt_freq; + int mnt_passno; + } expected; +}; + +static struct test_case test_cases[] = + { + { "/etc/auto.direct /mnt/auto/1 autofs defaults 0 0", + { "/etc/auto.direct", "/mnt/auto/1", "autofs", "defaults", 0, 0 } }, + + /* These entries are filtered out. */ + { "/etc/auto.2 /mnt/auto/2 autofs ignore 0 0", { NULL, } }, + { "/etc/auto.3 /mnt/auto/3 autofs ignore,other 1 2", { NULL, } }, + { "/etc/auto.4 /mnt/auto/4 autofs other,ignore 3 4", { NULL, } }, + { "/etc/auto.5 /mnt/auto/5 autofs opt1,ignore,opt2 5 6", { NULL, } }, + + /* Dummy entry to make the desynchronization more obvious. */ + { "/dev/sda1 / xfs defaults 0 0", + { "/dev/sda1", "/", "xfs", "defaults", 0, 0 } }, + + /* These are not filtered because the file system is not autofs. */ + { "/etc/auto.direct /mnt/auto/6 autofs1 ignore 0 0", + { "/etc/auto.direct", "/mnt/auto/6", "autofs1", "ignore", 0, 0 } }, + { "/etc/auto.direct /mnt/auto/7 autofs1 ignore,other 0 0", + { "/etc/auto.direct", "/mnt/auto/7", "autofs1", "ignore,other", 0, 0 } }, + { "/etc/auto.direct /mnt/auto/8 autofs1 other,ignore 0 0", + { "/etc/auto.direct", "/mnt/auto/8", "autofs1", "other,ignore", 0, 0 } }, + { "/etc/auto.direct /mnt/auto/9 autofs1 opt1,ignore,opt2 0 0", + { "/etc/auto.direct", "/mnt/auto/9", "autofs1", "opt1,ignore,opt2", } }, + + /* These are not filtered because the string "ignore" is not an + option name. */ + { "/etc/auto.direct /mnt/auto/10 autofs noignore 1 2", + { "/etc/auto.direct", "/mnt/auto/10", "autofs", "noignore", 1, 2 } }, + { "/etc/auto.direct /mnt/auto/11 autofs noignore,other 0 0", + { "/etc/auto.direct", "/mnt/auto/11", "autofs", "noignore,other", } }, + { "/etc/auto.direct /mnt/auto/12 autofs other,noignore 0 0", + { "/etc/auto.direct", "/mnt/auto/12", "autofs", "other,noignore", } }, + { "/etc/auto.direct /mnt/auto/13 autofs errors=ignore 0 0", + { "/etc/auto.direct", "/mnt/auto/13", "autofs", "errors=ignore", } }, + { "/etc/auto.direct /mnt/auto/14 autofs errors=ignore,other 0 0", + { "/etc/auto.direct", "/mnt/auto/14", "autofs", + "errors=ignore,other", } }, + { "/etc/auto.direct /mnt/auto/15 autofs other,errors=ignore 0 0", + { "/etc/auto.direct", "/mnt/auto/15", "autofs", + "other,errors=ignore", } }, + + /* These are not filtered because the string is escaped. '\151' + is 'i', but it is not actually decoded by the parser. */ + { "/etc/auto.\\151gnore /mnt/auto/16 autofs \\151gnore 0 0", + { "/etc/auto.\\151gnore", "/mnt/auto/16", "autofs", + "\\151gnore", } }, + }; + +static int +do_test (void) +{ + char *path; + xclose (create_temp_file ("tst-mntent-autofs-", &path)); + + /* Write the test file. */ + FILE *fp = xfopen (path, "w"); + for (size_t i = 0; i < array_length (test_cases); ++i) + fprintf (fp, "%s\n", test_cases[i].line); + xfclose (fp); + + /* Open the test file again, this time for parsing. */ + fp = setmntent (path, "r"); + TEST_VERIFY_EXIT (fp != NULL); + char buffer[512]; + struct mntent me; + + for (size_t i = 0; i < array_length (test_cases); ++i) + { + if (test_cases[i].expected.mnt_type == NULL) + continue; + + memset (buffer, 0xcc, sizeof (buffer)); + memset (&me, 0xcc, sizeof (me)); + struct mntent *pme = getmntent_r (fp, &me, buffer, sizeof (buffer)); + TEST_VERIFY_EXIT (pme != NULL); + TEST_VERIFY (pme == &me); + TEST_COMPARE_STRING (test_cases[i].expected.mnt_fsname, me.mnt_fsname); + TEST_COMPARE_STRING (test_cases[i].expected.mnt_dir, me.mnt_dir); + TEST_COMPARE_STRING (test_cases[i].expected.mnt_type, me.mnt_type); + TEST_COMPARE_STRING (test_cases[i].expected.mnt_opts, me.mnt_opts); + TEST_COMPARE (test_cases[i].expected.mnt_freq, me.mnt_freq); + TEST_COMPARE (test_cases[i].expected.mnt_passno, me.mnt_passno); + } + + TEST_VERIFY (getmntent_r (fp, &me, buffer, sizeof (buffer)) == NULL); + + TEST_COMPARE (feof (fp), 1); + TEST_COMPARE (ferror (fp), 0); + errno = 0; + TEST_COMPARE (endmntent (fp), 1); + TEST_COMPARE (errno, 0); + free (path); + return 0; +} + +#include