1 /* Test of <errno.h> substitute. 2 Copyright (C) 2008-2020 Free Software Foundation, Inc. 3 4 This program is free software: you can redistribute it and/or modify 5 it under the terms of the GNU General Public License as published by 6 the Free Software Foundation; either version 3 of the License, or 7 (at your option) any later version. 8 9 This program is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 GNU General Public License for more details. 13 14 You should have received a copy of the GNU General Public License 15 along with this program. If not, see <https://www.gnu.org/licenses/>. */ 16 17 /* Written by Bruno Haible <bruno@clisp.org>, 2008. */ 18 19 #include <config.h> 20 21 #include <errno.h> 22 23 /* Verify that the POSIX mandated errno values exist and can be used as 24 initializers outside of a function. 25 The variable names happen to match the Linux/x86 error numbers. */ 26 int e1 = EPERM; 27 int e2 = ENOENT; 28 int e3 = ESRCH; 29 int e4 = EINTR; 30 int e5 = EIO; 31 int e6 = ENXIO; 32 int e7 = E2BIG; 33 int e8 = ENOEXEC; 34 int e9 = EBADF; 35 int e10 = ECHILD; 36 int e11 = EAGAIN; 37 int e11a = EWOULDBLOCK; 38 int e12 = ENOMEM; 39 int e13 = EACCES; 40 int e14 = EFAULT; 41 int e16 = EBUSY; 42 int e17 = EEXIST; 43 int e18 = EXDEV; 44 int e19 = ENODEV; 45 int e20 = ENOTDIR; 46 int e21 = EISDIR; 47 int e22 = EINVAL; 48 int e23 = ENFILE; 49 int e24 = EMFILE; 50 int e25 = ENOTTY; 51 int e26 = ETXTBSY; 52 int e27 = EFBIG; 53 int e28 = ENOSPC; 54 int e29 = ESPIPE; 55 int e30 = EROFS; 56 int e31 = EMLINK; 57 int e32 = EPIPE; 58 int e33 = EDOM; 59 int e34 = ERANGE; 60 int e35 = EDEADLK; 61 int e36 = ENAMETOOLONG; 62 int e37 = ENOLCK; 63 int e38 = ENOSYS; 64 int e39 = ENOTEMPTY; 65 int e40 = ELOOP; 66 int e42 = ENOMSG; 67 int e43 = EIDRM; 68 int e67 = ENOLINK; 69 int e71 = EPROTO; 70 int e72 = EMULTIHOP; 71 int e74 = EBADMSG; 72 int e75 = EOVERFLOW; 73 int e84 = EILSEQ; 74 int e88 = ENOTSOCK; 75 int e89 = EDESTADDRREQ; 76 int e90 = EMSGSIZE; 77 int e91 = EPROTOTYPE; 78 int e92 = ENOPROTOOPT; 79 int e93 = EPROTONOSUPPORT; 80 int e95 = EOPNOTSUPP; 81 int e95a = ENOTSUP; 82 int e97 = EAFNOSUPPORT; 83 int e98 = EADDRINUSE; 84 int e99 = EADDRNOTAVAIL; 85 int e100 = ENETDOWN; 86 int e101 = ENETUNREACH; 87 int e102 = ENETRESET; 88 int e103 = ECONNABORTED; 89 int e104 = ECONNRESET; 90 int e105 = ENOBUFS; 91 int e106 = EISCONN; 92 int e107 = ENOTCONN; 93 int e110 = ETIMEDOUT; 94 int e111 = ECONNREFUSED; 95 int e113 = EHOSTUNREACH; 96 int e114 = EALREADY; 97 int e115 = EINPROGRESS; 98 int e116 = ESTALE; 99 int e122 = EDQUOT; 100 int e125 = ECANCELED; 101 int e130 = EOWNERDEAD; 102 int e131 = ENOTRECOVERABLE; 103 104 /* Don't verify that these errno values are all different, except for possibly 105 EWOULDBLOCK == EAGAIN. Even Linux/x86 does not pass this check: it has 106 ENOTSUP == EOPNOTSUPP. */ 107 108 int main()109main () 110 { 111 /* Verify that errno can be assigned. */ 112 errno = EOVERFLOW; 113 114 /* snprintf() callers want to distinguish EINVAL and EOVERFLOW. */ 115 if (errno == EINVAL) 116 return 1; 117 118 return 0; 119 } 120