| 1 | /* Test of <errno.h> substitute.
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| 2 | Copyright (C) 2008-2021 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 <[email protected]>, 2008. */
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| 18 |
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| 19 | #include <config.h>
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| 20 |
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| 21 | #include <errno.h>
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| 22 |
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| 23 | /* Verify that the POSIX mandated errno values exist and can be used as
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| 24 | initializers outside of a function.
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| 25 | The variable names happen to match the Linux/x86 error numbers. */
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| 26 | int e1 = EPERM;
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| 27 | int e2 = ENOENT;
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| 28 | int e3 = ESRCH;
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| 29 | int e4 = EINTR;
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| 30 | int e5 = EIO;
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| 31 | int e6 = ENXIO;
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| 32 | int e7 = E2BIG;
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| 33 | int e8 = ENOEXEC;
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| 34 | int e9 = EBADF;
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| 35 | int e10 = ECHILD;
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| 36 | int e11 = EAGAIN;
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| 37 | int e11a = EWOULDBLOCK;
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| 38 | int e12 = ENOMEM;
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| 39 | int e13 = EACCES;
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| 40 | int e14 = EFAULT;
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| 41 | int e16 = EBUSY;
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| 42 | int e17 = EEXIST;
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| 43 | int e18 = EXDEV;
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| 44 | int e19 = ENODEV;
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| 45 | int e20 = ENOTDIR;
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| 46 | int e21 = EISDIR;
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| 47 | int e22 = EINVAL;
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| 48 | int e23 = ENFILE;
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| 49 | int e24 = EMFILE;
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| 50 | int e25 = ENOTTY;
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| 51 | int e26 = ETXTBSY;
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| 52 | int e27 = EFBIG;
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| 53 | int e28 = ENOSPC;
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| 54 | int e29 = ESPIPE;
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| 55 | int e30 = EROFS;
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| 56 | int e31 = EMLINK;
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| 57 | int e32 = EPIPE;
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| 58 | int e33 = EDOM;
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| 59 | int e34 = ERANGE;
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| 60 | int e35 = EDEADLK;
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| 61 | int e36 = ENAMETOOLONG;
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| 62 | int e37 = ENOLCK;
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| 63 | int e38 = ENOSYS;
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| 64 | int e39 = ENOTEMPTY;
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| 65 | int e40 = ELOOP;
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| 66 | int e42 = ENOMSG;
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| 67 | int e43 = EIDRM;
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| 68 | int e67 = ENOLINK;
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| 69 | int e71 = EPROTO;
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| 70 | int e72 = EMULTIHOP;
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| 71 | int e74 = EBADMSG;
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| 72 | int e75 = EOVERFLOW;
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| 73 | int e84 = EILSEQ;
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| 74 | int e88 = ENOTSOCK;
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| 75 | int e89 = EDESTADDRREQ;
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| 76 | int e90 = EMSGSIZE;
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| 77 | int e91 = EPROTOTYPE;
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| 78 | int e92 = ENOPROTOOPT;
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| 79 | int e93 = EPROTONOSUPPORT;
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| 80 | int e95 = EOPNOTSUPP;
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| 81 | int e95a = ENOTSUP;
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| 82 | int e97 = EAFNOSUPPORT;
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| 83 | int e98 = EADDRINUSE;
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| 84 | int e99 = EADDRNOTAVAIL;
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| 85 | int e100 = ENETDOWN;
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| 86 | int e101 = ENETUNREACH;
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| 87 | int e102 = ENETRESET;
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| 88 | int e103 = ECONNABORTED;
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| 89 | int e104 = ECONNRESET;
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| 90 | int e105 = ENOBUFS;
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| 91 | int e106 = EISCONN;
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| 92 | int e107 = ENOTCONN;
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| 93 | int e110 = ETIMEDOUT;
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| 94 | int e111 = ECONNREFUSED;
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| 95 | int e113 = EHOSTUNREACH;
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| 96 | int e114 = EALREADY;
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| 97 | int e115 = EINPROGRESS;
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| 98 | int e116 = ESTALE;
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| 99 | int e122 = EDQUOT;
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| 100 | int e125 = ECANCELED;
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| 101 | int e130 = EOWNERDEAD;
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| 102 | int e131 = ENOTRECOVERABLE;
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| 103 |
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| 104 | /* Don't verify that these errno values are all different, except for possibly
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| 105 | EWOULDBLOCK == EAGAIN. Even Linux/x86 does not pass this check: it has
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| 106 | ENOTSUP == EOPNOTSUPP. */
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| 107 |
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| 108 | int
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| 109 | main ()
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| 110 | {
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| 111 | /* Verify that errno can be assigned. */
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| 112 | errno = EOVERFLOW;
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| 113 |
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| 114 | /* snprintf() callers want to distinguish EINVAL and EOVERFLOW. */
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| 115 | if (errno == EINVAL)
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| 116 | return 1;
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| 117 |
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| 118 | return 0;
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| 119 | }
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