| 1 | /* Test of <fcntl.h> substitute.
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| 2 | Copyright (C) 2007, 2009-2021 Free Software Foundation, Inc.
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| 3 |
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| 4 | This program is free software: you can redistribute it and/or modify
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| 5 | it under the terms of the GNU General Public License as published by
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| 6 | the Free Software Foundation; either version 3 of the License, or
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| 7 | (at your option) any later version.
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| 8 |
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| 9 | This program is distributed in the hope that it will be useful,
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 12 | GNU General Public License for more details.
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| 13 |
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| 14 | You should have received a copy of the GNU General Public License
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| 15 | along with this program. If not, see <https://www.gnu.org/licenses/>. */
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| 16 |
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| 17 | /* Written by Bruno Haible <bruno@clisp.org>, 2007. */
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| 18 |
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| 19 | #include <config.h>
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| 20 |
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| 21 | #include <fcntl.h>
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| 22 |
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| 23 | /* Check that the various O_* macros are defined. */
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| 24 | int o = (O_DIRECT | O_DIRECTORY | O_DSYNC | O_IGNORE_CTTY | O_NDELAY | O_NOATIME
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| 25 | | O_NONBLOCK | O_NOCTTY | O_NOFOLLOW | O_NOLINK | O_NOLINKS | O_NOTRANS
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| 26 | | O_RSYNC | O_SYNC | O_TTY_INIT | O_BINARY | O_TEXT);
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| 27 |
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| 28 | /* Check that the various SEEK_* macros are defined. */
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| 29 | int sk[] = { SEEK_CUR, SEEK_END, SEEK_SET };
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| 30 |
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| 31 | /* Check that the FD_* macros are defined. */
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| 32 | int i = FD_CLOEXEC;
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| 33 |
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| 34 | /* Check that the types are all defined. */
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| 35 | pid_t t1;
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| 36 | off_t t2;
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| 37 | mode_t t3;
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| 38 |
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| 39 | int
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| 40 | main (void)
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| 41 | {
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| 42 | /* Ensure no overlap in SEEK_*. */
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| 43 | switch (0)
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| 44 | {
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| 45 | case SEEK_CUR:
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| 46 | case SEEK_END:
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| 47 | case SEEK_SET:
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| 48 | ;
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| 49 | }
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| 50 |
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| 51 | /* Ensure no dangerous overlap in non-zero gnulib-defined replacements. */
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| 52 | switch (O_RDONLY)
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| 53 | {
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| 54 | /* Access modes */
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| 55 | case O_RDONLY:
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| 56 | case O_WRONLY:
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| 57 | case O_RDWR:
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| 58 | #if O_EXEC && O_EXEC != O_RDONLY
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| 59 | case O_EXEC:
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| 60 | #endif
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| 61 | #if O_SEARCH && O_EXEC != O_SEARCH && O_SEARCH != O_RDONLY
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| 62 | case O_SEARCH:
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| 63 | #endif
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| 64 | i = ! (~O_ACCMODE & (O_RDONLY | O_WRONLY | O_RDWR | O_EXEC | O_SEARCH));
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| 65 | break;
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| 66 |
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| 67 | /* Everyone should have these */
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| 68 | case O_CREAT:
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| 69 | case O_EXCL:
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| 70 | case O_TRUNC:
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| 71 | case O_APPEND:
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| 72 | break;
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| 73 |
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| 74 | /* These might be 0 or O_RDONLY, only test non-zero versions. */
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| 75 | #if O_CLOEXEC
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| 76 | case O_CLOEXEC:
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| 77 | #endif
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| 78 | #if O_DIRECT
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| 79 | case O_DIRECT:
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| 80 | #endif
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| 81 | #if O_DIRECTORY
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| 82 | case O_DIRECTORY:
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| 83 | #endif
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| 84 | #if O_DSYNC
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| 85 | case O_DSYNC:
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| 86 | #endif
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| 87 | #if O_IGNORE_CTTY
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| 88 | case O_IGNORE_CTTY:
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| 89 | #endif
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| 90 | #if O_NOATIME
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| 91 | case O_NOATIME:
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| 92 | #endif
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| 93 | #if O_NONBLOCK
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| 94 | case O_NONBLOCK:
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| 95 | #endif
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| 96 | #if O_NOCTTY
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| 97 | case O_NOCTTY:
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| 98 | #endif
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| 99 | #if O_NOFOLLOW
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| 100 | case O_NOFOLLOW:
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| 101 | #endif
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| 102 | #if O_NOLINK
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| 103 | case O_NOLINK:
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| 104 | #endif
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| 105 | #if O_NOLINKS
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| 106 | case O_NOLINKS:
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| 107 | #endif
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| 108 | #if O_NOTRANS
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| 109 | case O_NOTRANS:
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| 110 | #endif
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| 111 | #if O_RSYNC && O_RSYNC != O_DSYNC
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| 112 | case O_RSYNC:
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| 113 | #endif
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| 114 | #if O_SYNC && O_SYNC != O_DSYNC && O_SYNC != O_RSYNC
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| 115 | case O_SYNC:
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| 116 | #endif
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| 117 | #if O_TTY_INIT
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| 118 | case O_TTY_INIT:
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| 119 | #endif
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| 120 | #if O_BINARY
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| 121 | case O_BINARY:
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| 122 | #endif
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| 123 | #if O_TEXT
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| 124 | case O_TEXT:
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| 125 | #endif
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| 126 | ;
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| 127 | }
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| 128 |
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| 129 | return !i;
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| 130 | }
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