--- /dev/null
+--- Errno translation.
+-- @module generic.errno
+
+-- Copyright (C) 2013 emlix GmbH, see file AUTHORS
+--
+-- This file is part of e2factory, the emlix embedded build system.
+-- For more information see http://www.e2factory.org
+--
+-- e2factory is a registered trademark of emlix GmbH.
+--
+-- e2factory 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.
+
+local errno = {}
+
+local strict = require("strict")
+local err = require("err")
+
+local def_to_num = {}
+ -- awk '/^#define\tE/ { printf("def_to_num[\"%s\"] = %s\n", $2, $3)}'
+ -- < /usr/include/asm-generic/errno-base.h
+def_to_num["EPERM"] = 1
+def_to_num["ENOENT"] = 2
+def_to_num["ESRCH"] = 3
+def_to_num["EINTR"] = 4
+def_to_num["EIO"] = 5
+def_to_num["ENXIO"] = 6
+def_to_num["E2BIG"] = 7
+def_to_num["ENOEXEC"] = 8
+def_to_num["EBADF"] = 9
+def_to_num["ECHILD"] = 10
+def_to_num["EAGAIN"] = 11
+def_to_num["ENOMEM"] = 12
+def_to_num["EACCES"] = 13
+def_to_num["EFAULT"] = 14
+def_to_num["ENOTBLK"] = 15
+def_to_num["EBUSY"] = 16
+def_to_num["EEXIST"] = 17
+def_to_num["EXDEV"] = 18
+def_to_num["ENODEV"] = 19
+def_to_num["ENOTDIR"] = 20
+def_to_num["EISDIR"] = 21
+def_to_num["EINVAL"] = 22
+def_to_num["ENFILE"] = 23
+def_to_num["EMFILE"] = 24
+def_to_num["ENOTTY"] = 25
+def_to_num["ETXTBSY"] = 26
+def_to_num["EFBIG"] = 27
+def_to_num["ENOSPC"] = 28
+def_to_num["ESPIPE"] = 29
+def_to_num["EROFS"] = 30
+def_to_num["EMLINK"] = 31
+def_to_num["EPIPE"] = 32
+def_to_num["EDOM"] = 33
+def_to_num["ERANGE"] = 34
+
+-- /usr/include/asm-generic/errno.h
+def_to_num["EDEADLK"] = 35
+def_to_num["ENAMETOOLONG"] = 36
+def_to_num["ENOLCK"] = 37
+def_to_num["ENOSYS"] = 38
+def_to_num["ENOTEMPTY"] = 39
+def_to_num["ELOOP"] = 40
+def_to_num["EWOULDBLOCK"] = def_to_num.EAGAIN
+def_to_num["ENOMSG"] = 42
+def_to_num["EIDRM"] = 43
+def_to_num["ECHRNG"] = 44
+def_to_num["EL2NSYNC"] = 45
+def_to_num["EL3HLT"] = 46
+def_to_num["EL3RST"] = 47
+def_to_num["ELNRNG"] = 48
+def_to_num["EUNATCH"] = 49
+def_to_num["ENOCSI"] = 50
+def_to_num["EL2HLT"] = 51
+def_to_num["EBADE"] = 52
+def_to_num["EBADR"] = 53
+def_to_num["EXFULL"] = 54
+def_to_num["ENOANO"] = 55
+def_to_num["EBADRQC"] = 56
+def_to_num["EBADSLT"] = 57
+def_to_num["EDEADLOCK"] = def_to_num.EDEADLK
+def_to_num["EBFONT"] = 59
+def_to_num["ENOSTR"] = 60
+def_to_num["ENODATA"] = 61
+def_to_num["ETIME"] = 62
+def_to_num["ENOSR"] = 63
+def_to_num["ENONET"] = 64
+def_to_num["ENOPKG"] = 65
+def_to_num["EREMOTE"] = 66
+def_to_num["ENOLINK"] = 67
+def_to_num["EADV"] = 68
+def_to_num["ESRMNT"] = 69
+def_to_num["ECOMM"] = 70
+def_to_num["EPROTO"] = 71
+def_to_num["EMULTIHOP"] = 72
+def_to_num["EDOTDOT"] = 73
+def_to_num["EBADMSG"] = 74
+def_to_num["EOVERFLOW"] = 75
+def_to_num["ENOTUNIQ"] = 76
+def_to_num["EBADFD"] = 77
+def_to_num["EREMCHG"] = 78
+def_to_num["ELIBACC"] = 79
+def_to_num["ELIBBAD"] = 80
+def_to_num["ELIBSCN"] = 81
+def_to_num["ELIBMAX"] = 82
+def_to_num["ELIBEXEC"] = 83
+def_to_num["EILSEQ"] = 84
+def_to_num["ERESTART"] = 85
+def_to_num["ESTRPIPE"] = 86
+def_to_num["EUSERS"] = 87
+def_to_num["ENOTSOCK"] = 88
+def_to_num["EDESTADDRREQ"] = 89
+def_to_num["EMSGSIZE"] = 90
+def_to_num["EPROTOTYPE"] = 91
+def_to_num["ENOPROTOOPT"] = 92
+def_to_num["EPROTONOSUPPORT"] = 93
+def_to_num["ESOCKTNOSUPPORT"] = 94
+def_to_num["EOPNOTSUPP"] = 95
+def_to_num["EPFNOSUPPORT"] = 96
+def_to_num["EAFNOSUPPORT"] = 97
+def_to_num["EADDRINUSE"] = 98
+def_to_num["EADDRNOTAVAIL"] = 99
+def_to_num["ENETDOWN"] = 100
+def_to_num["ENETUNREACH"] = 101
+def_to_num["ENETRESET"] = 102
+def_to_num["ECONNABORTED"] = 103
+def_to_num["ECONNRESET"] = 104
+def_to_num["ENOBUFS"] = 105
+def_to_num["EISCONN"] = 106
+def_to_num["ENOTCONN"] = 107
+def_to_num["ESHUTDOWN"] = 108
+def_to_num["ETOOMANYREFS"] = 109
+def_to_num["ETIMEDOUT"] = 110
+def_to_num["ECONNREFUSED"] = 111
+def_to_num["EHOSTDOWN"] = 112
+def_to_num["EHOSTUNREACH"] = 113
+def_to_num["EALREADY"] = 114
+def_to_num["EINPROGRESS"] = 115
+def_to_num["ESTALE"] = 116
+def_to_num["EUCLEAN"] = 117
+def_to_num["ENOTNAM"] = 118
+def_to_num["ENAVAIL"] = 119
+def_to_num["EISNAM"] = 120
+def_to_num["EREMOTEIO"] = 121
+def_to_num["EDQUOT"] = 122
+def_to_num["ENOMEDIUM"] = 123
+def_to_num["EMEDIUMTYPE"] = 124
+def_to_num["ECANCELED"] = 125
+def_to_num["ENOKEY"] = 126
+def_to_num["EKEYEXPIRED"] = 127
+def_to_num["EKEYREVOKED"] = 128
+def_to_num["EKEYREJECTED"] = 129
+def_to_num["EOWNERDEAD"] = 130
+def_to_num["ENOTRECOVERABLE"] = 131
+
+--- Given a numeric error code (errno), translate it the corresponding
+-- define string. Example: errno.errnum2def(1) => "EPERM".
+-- @param errnum Error (errno) number;
+-- @return Corresponding define name as a string, or false on error.
+-- @return Error object on failure (errnum was out of range).
+function errno.errnum2def(errnum)
+ for k,v in pairs(def_to_num) do
+ if v == errnum then
+ return k
+ end
+ end
+
+ return false, err.new("invalid errnum")
+end
+
+--- Translate errno define name to its errno number.
+-- Example: errno.def2errnum("EPERM") => 1.
+-- @param errdef Errno define as a string.
+-- @return Corresponding errno number or false on error.
+-- @return Error object on failure.
+function errno.def2errnum(errdef)
+ local d = def_to_num[errdef]
+
+ if not d then
+ return false, err.new("unknown definition")
+ end
+
+ return d
+end
+
+return strict.lock(errno)
+
+-- vim:sw=4:sts=4:et:
projects / e2factory.git / commitdiff