Mercurial > gnulib
view tests/test-fcntl-h.c @ 40214:452ab00796c7
Fix undefined behaviour.
* lib/bitrotate.h (rotl16, rotr16, rotl8, rotr8): Case x to
'unsigned int', to avoid shift operations on 'int'.
* lib/xmemdup0.c (xmemdup0): Don't invoke memcpy with a zero size.
* tests/test-count-leading-zeros.c (main): Use a random number that has
as many bits as TYPE, not only 2*15 or 2*31 bits.
* tests/test-count-trailing-zeros.c (main): Likewise.
* tests/test-count-one-bits.c (main): Likewise.
* tests/test-memmem.c: Don't include "null-ptr.h".
(main): Use zerosize_ptr() instead of null_ptr().
* modules/memmem-tests (Files): Remove tests/null-ptr.h.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sat, 09 Mar 2019 20:32:25 +0100 |
parents | b06060465f09 |
children |
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/* Test of <fcntl.h> substitute. Copyright (C) 2007, 2009-2019 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. */ /* Written by Bruno Haible <bruno@clisp.org>, 2007. */ #include <config.h> #include <fcntl.h> /* Check that the various O_* macros are defined. */ int o = (O_DIRECT | O_DIRECTORY | O_DSYNC | O_IGNORE_CTTY | O_NDELAY | O_NOATIME | O_NONBLOCK | O_NOCTTY | O_NOFOLLOW | O_NOLINK | O_NOLINKS | O_NOTRANS | O_RSYNC | O_SYNC | O_TTY_INIT | O_BINARY | O_TEXT); /* Check that the various SEEK_* macros are defined. */ int sk[] = { SEEK_CUR, SEEK_END, SEEK_SET }; /* Check that the FD_* macros are defined. */ int i = FD_CLOEXEC; /* Check that the types are all defined. */ pid_t t1; off_t t2; mode_t t3; int main (void) { /* Ensure no overlap in SEEK_*. */ switch (0) { case SEEK_CUR: case SEEK_END: case SEEK_SET: ; } /* Ensure no dangerous overlap in non-zero gnulib-defined replacements. */ switch (O_RDONLY) { /* Access modes */ case O_RDONLY: case O_WRONLY: case O_RDWR: #if O_EXEC && O_EXEC != O_RDONLY case O_EXEC: #endif #if O_SEARCH && O_EXEC != O_SEARCH && O_SEARCH != O_RDONLY case O_SEARCH: #endif i = ! (~O_ACCMODE & (O_RDONLY | O_WRONLY | O_RDWR | O_EXEC | O_SEARCH)); break; /* Everyone should have these */ case O_CREAT: case O_EXCL: case O_TRUNC: case O_APPEND: break; /* These might be 0 or O_RDONLY, only test non-zero versions. */ #if O_CLOEXEC case O_CLOEXEC: #endif #if O_DIRECT case O_DIRECT: #endif #if O_DIRECTORY case O_DIRECTORY: #endif #if O_DSYNC case O_DSYNC: #endif #if O_IGNORE_CTTY case O_IGNORE_CTTY: #endif #if O_NOATIME case O_NOATIME: #endif #if O_NONBLOCK case O_NONBLOCK: #endif #if O_NOCTTY case O_NOCTTY: #endif #if O_NOFOLLOW case O_NOFOLLOW: #endif #if O_NOLINK case O_NOLINK: #endif #if O_NOLINKS case O_NOLINKS: #endif #if O_NOTRANS case O_NOTRANS: #endif #if O_RSYNC && O_RSYNC != O_DSYNC case O_RSYNC: #endif #if O_SYNC && O_SYNC != O_DSYNC && O_SYNC != O_RSYNC case O_SYNC: #endif #if O_TTY_INIT case O_TTY_INIT: #endif #if O_BINARY case O_BINARY: #endif #if O_TEXT case O_TEXT: #endif ; } return !i; }