2003-05-15 Marcus Brinkmann <[email protected]>

	* Initial check-in.

8 files changed, 796 insertions, 0 deletions

diff --git a/src/Makefile.am b/src/Makefile.am
new file mode 100644
index 0000000..2972be5
--- /dev/null
+++ b/src/Makefile.am
@@ -0,0 +1,40 @@
+# Makefile.am for libgpg-error.
+# Copyright (C) 2003 g10 Code GmbH
+# 
+# This file is part of libgpg-error.
+# 
+# libgpg-error 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 2 of the License, or
+# (at your option) any later version.
+# 
+# libgpg-error 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, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ 
+EXTRA_DIST = mkstrtable.awk err-sources.h.in err-codes.h.in
+BUILT_SOURCES = err-sources.h err-codes.h
+CLEANFILES = err-sources.h err-codes.h
+
+nobase_include_HEADERS = gpg/error.h
+
+lib_LTLIBRARIES = libgpg-error.la
+
+libgpg_error_la_LDFLAGS = -version-info \
+  @LIBGPG_ERROR_LT_CURRENT@:@LIBGPG_ERROR_LT_REVISION@:@LIBGPG_ERROR_LT_AGE@
+
+libgpg_error_la_SOURCES = gpg/error.h gettext.h \
+	err-sources.h strsource.c err-codes.h strerror.c
+
+libgpg_error_la_LIBADD = @LTLIBINTL@
+
+err-sources.h: Makefile mkstrtable.awk err-sources.h.in
+	$(AWK) -f $(srcdir)/mkstrtable.awk $(srcdir)/err-sources.h.in >$@
+
+err-codes.h: Makefile mkstrtable.awk err-codes.h.in
+	$(AWK) -f $(srcdir)/mkstrtable.awk $(srcdir)/err-codes.h.in >$@
diff --git a/src/err-codes.h.in b/src/err-codes.h.in
new file mode 100644
index 0000000..708a82e
--- /dev/null
+++ b/src/err-codes.h.in
@@ -0,0 +1,166 @@
+# List of error codes and their description.
+# Copyright (C) 2003 g10 Code GmbH
+# 
+# This file is part of libgpg-error.
+# 
+# libgpg-error 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 2 of the License, or
+# (at your option) any later version.
+# 
+# libgpg-error 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, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+
+# Empty lines are ignored.  Other lines must have an error code
+# number, followed by exactly one <tab>, followed by the error
+# message.  Trailing whitespace is removed.  The error codes should be
+# sorted.  The last line should not have a number, but only a <tab>,
+# followed by a description for error codes that are not in the list.
+
+0	Success
+1	General error
+2	Unknown packet
+3	Unknown version in packet
+4	Invalid public key algorithm
+5	Invalid digest algorithm
+6	Bad public key
+7	Bad secret key
+8	Bad signature
+9	No public key
+10	Checksum error
+11	Bad passphrase
+12	Invalid cipher algorithm
+13	Keyring open
+14	Invalid packet
+15	Invalid armor
+16	No user ID
+17	No secret key
+18	Wrong secret key used
+19	Bad session key
+20	Unknown compression algorithm
+21	Reading file failed
+22	Writing file failed
+23	Opening file failed
+24	Creating file failed
+25	Closing file failed
+26	Renaming file failed
+27	Deleting file failed
+28	File exists
+29	File error
+30	Bad MPI value
+31	Invalid passphrase
+32	Invalid signature class
+33	Resources exhausted
+34	Invalid keyring
+35	Trust DB error
+36	Bad certificate
+37	Invalid user ID
+38	Unexpected error
+39	Time conflict
+40	Keyserver error
+41	Wrong public key algorithm
+42	I/O error
+43	Weak encryption key
+44	Invalid key length
+45	Invalid argument
+46	Syntax error in URI
+47	Invalid URI
+48	Network error
+49	Unknown host
+50	Selftest failed
+51	Data not encrypted
+52	Data not processed
+53	Unusable public key
+54	Unusable secret key
+55	Invalid value
+56	Bad certificate chain
+57	Missing certificate
+58	No data
+59	Bug
+60	Not supported
+61	Invalid operation code
+62	Out of core
+63	Internal error
+64	EOF (gcrypt)
+65	Invalid object
+66	Provided object is too short
+67	Provided object is too large
+68	Missing item in object
+69	Not implemented
+70	Conflicting use
+71	Invalid cipher mode
+72	Invalid flag
+73	Read error
+74	Write error
+75	Incomplete line
+76	Invalid response
+77	No agent running
+78	agent error
+79	Invalid data
+80	Assuan server fault
+81	Assuan error
+82	Invalid session key
+83	Invalid S-expression
+84	Unsupported algorithm
+85	No pinentry
+86	pinentry error
+87	Bad PIN
+88	Invalid name
+89	Bad data
+90	Invalid parameter
+91	Tribute to D. A.
+92	No dirmngr
+93	dirmngr error
+94	Certificate revoced
+95	No CRL known
+96	CRL too old
+97	Line too long
+98	Not trusted
+99 	Operation cancelled
+100	Bad CA certificate
+101	Certificate expired
+102	Certificate too young
+103	Unsupported certificate
+104	Unknown S-expression
+105	Unsupported protection
+106	Corrupted protection
+107	Ambiguous name
+108	Card error
+109	Card reset
+110	Card removed
+111	Invalid card
+112	Card not present
+113	No PKCS15 application
+114	Not confirmed
+115	Configuration error
+116	No policy match
+117	Invalid index
+118	Invalid ID
+119	No SmartCard daemon
+120	SmartCard daemon error
+121	Unsupported protocol
+122	Bad PIN method
+123	Card not initialized
+124	Unsupported operation
+125	Wrong key usage
+201	Invalid length specifier in S-expression
+202	String too long in S-expression
+203	Unmatched parentheses in S-expression
+204	S-expression not canonical
+205	Bad character in S-expression
+206	Bad quotation in S-expression
+207	Zero prefix in S-expression
+208	Nested display hints in S-expression
+209	Unmatched display hints
+210	Unexpected reserved punctuation in S-expression
+211	Bad hexadecimal character in S-expression
+212	Odd hexadecimal numbers in S-expression
+213	Bad octadecimal character in S-expression
+16383	End of file
+	Unknown error code
diff --git a/src/err-sources.h.in b/src/err-sources.h.in
new file mode 100644
index 0000000..62d2437
--- /dev/null
+++ b/src/err-sources.h.in
@@ -0,0 +1,35 @@
+# List of error sources and their description.
+# Copyright (C) 2003 g10 Code GmbH
+# 
+# This file is part of libgpg-error.
+# 
+# libgpg-error 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 2 of the License, or
+# (at your option) any later version.
+# 
+# libgpg-error 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, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+
+# Empty lines are ignored.  Other lines must have an error code
+# number, followed by exactly one <tab>, followed by the error
+# message.  Trailing whitespace is removed.  The error sources should
+# be sorted.  The last line should not have a number, but only a
+# <tab>, followed by a description for error sources that are not in
+# the list.
+
+0	Unspecified source
+1	gcrypt
+2	GnuPG
+3	GpgSM
+4	GPG Agent
+5	Pinentry
+6	SCD
+7	GPGME
+	Unknown source
diff --git a/src/gettext.h b/src/gettext.h
new file mode 100644
index 0000000..8b262f4
--- /dev/null
+++ b/src/gettext.h
@@ -0,0 +1,69 @@
+/* Convenience header for conditional use of GNU <libintl.h>.
+   Copyright (C) 1995-1998, 2000-2002 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify it
+   under the terms of the GNU Library General Public License as published
+   by the Free Software Foundation; either version 2, 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+   USA.  */
+
+#ifndef _LIBGETTEXT_H
+#define _LIBGETTEXT_H 1
+
+/* NLS can be disabled through the configure --disable-nls option.  */
+#if ENABLE_NLS
+
+/* Get declarations of GNU message catalog functions.  */
+# include <libintl.h>
+
+#else
+
+/* Solaris /usr/include/locale.h includes /usr/include/libintl.h, which
+   chokes if dcgettext is defined as a macro.  So include it now, to make
+   later inclusions of <locale.h> a NOP.  We don't include <libintl.h>
+   as well because people using "gettext.h" will not include <libintl.h>,
+   and also including <libintl.h> would fail on SunOS 4, whereas <locale.h>
+   is OK.  */
+#if defined(__sun)
+# include <locale.h>
+#endif
+
+/* Disabled NLS.
+   The casts to 'const char *' serve the purpose of producing warnings
+   for invalid uses of the value returned from these functions.
+   On pre-ANSI systems without 'const', the config.h file is supposed to
+   contain "#define const".  */
+# define gettext(Msgid) ((const char *) (Msgid))
+# define dgettext(Domainname, Msgid) ((const char *) (Msgid))
+# define dcgettext(Domainname, Msgid, Category) ((const char *) (Msgid))
+# define ngettext(Msgid1, Msgid2, N) \
+    ((N) == 1 ? (const char *) (Msgid1) : (const char *) (Msgid2))
+# define dngettext(Domainname, Msgid1, Msgid2, N) \
+    ((N) == 1 ? (const char *) (Msgid1) : (const char *) (Msgid2))
+# define dcngettext(Domainname, Msgid1, Msgid2, N, Category) \
+    ((N) == 1 ? (const char *) (Msgid1) : (const char *) (Msgid2))
+# define textdomain(Domainname) ((const char *) (Domainname))
+# define bindtextdomain(Domainname, Dirname) ((const char *) (Dirname))
+# define bind_textdomain_codeset(Domainname, Codeset) ((const char *) (Codeset))
+
+#endif
+
+/* A pseudo function call that serves as a marker for the automated
+   extraction of messages, but does not call gettext().  The run-time
+   translation is done at a different place in the code.
+   The argument, String, should be a literal string.  Concatenated strings
+   and other string expressions won't work.
+   The macro's expansion is not parenthesized, so that it is suitable as
+   initializer for static 'char[]' or 'const char[]' variables.  */
+#define gettext_noop(String) String
+
+#endif /* _LIBGETTEXT_H */
diff --git a/src/gpg/error.h b/src/gpg/error.h
new file mode 100644
index 0000000..9ddf09b
--- /dev/null
+++ b/src/gpg/error.h
@@ -0,0 +1,287 @@
+/* gpg/error.h - Public interface to libgpg-error.
+   Copyright (C) 2003 g10 Code GmbH
+
+   This file is part of libgpg-error.
+ 
+   libgpg-error 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 2 of the
+   License, or (at your option) any later version.
+ 
+   libgpg-error 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 GPGME; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#ifndef GPG_ERROR_H
+#define GPG_ERROR_H	1
+
+/* The GnuPG project consists of many components.  Error codes are
+   exchanged between all components.  The common error codes and their
+   user-presentable descriptions are kept into a shared library to
+   allow adding new error codes and components without recompiling any
+   of the other components.  The interface will not change in a
+   backward incompatible way.
+
+   An error code together with an error source build up an error
+   value.  As the error value is been passed from one component to
+   another, it preserver the information about the source and nature
+   of the error.
+
+   A component of the GnuPG project can define the following macro to
+   tune the behaviour of the library:
+
+   GPG_ERR_SOURCE_DEFAULT: Define to an error source of type
+   gpg_err_source_t to make that source the default for gpg_error().
+   Otherwise GPG_ERR_SOURCE_UNKNOWN is used as default.  */
+
+
+/* The error source type gpg_err_source_t.  */
+
+/* Only add to the end of the list, never change or reorder the
+   existing entries.  */
+typedef enum
+  {
+    GPG_ERR_SOURCE_UNKNOWN = 0,
+    GPG_ERR_SOURCE_GCRYPT = 1,
+    GPG_ERR_SOURCE_GPG = 2,
+    GPG_ERR_SOURCE_GPGSM = 3,
+    GPG_ERR_SOURCE_GPGAGENT = 4,
+    GPG_ERR_SOURCE_PINENTRY = 5,
+    GPG_ERR_SOURCE_SCD = 6,
+    GPG_ERR_SOURCE_GPGME = 7,
+
+    /* This is one more than the largest allowed entry.  */
+    GPG_ERR_SOURCE_DIM = 256
+  } gpg_err_source_t;
+
+
+/* The error code type gpg_err_code_t.  */
+
+/* Only add to the end of the list, never change or reorder the
+   existing entries.  */
+typedef enum
+  {
+    GPG_ERR_NO_ERROR = 0,		/* An error that is not an error.  */
+    GPG_ERR_GENERAL = 1,
+    GPG_ERR_UNKNOWN_PACKET = 2,
+    GPG_ERR_UNKNOWN_VERSION = 3,	/* Unknown version (in packet).  */
+    GPG_ERR_PUBKEY_ALGO	= 4,		/* Invalid public key algorithm.  */
+    GPG_ERR_DIGEST_ALGO = 5,		/* Invalid digest algorithm.  */
+    GPG_ERR_BAD_PUBKEY = 6,		/* Bad public key.  */
+    GPG_ERR_BAD_SECKEY = 7,		/* Bad secret key.  */
+    GPG_ERR_BAD_SIGNATURE = 8,		/* Bad signature.  */
+    GPG_ERR_NO_PUBKEY = 9,		/* Public key not found.  */
+    GPG_ERR_CHECKSUM = 10,		/* Checksum error.  */
+    GPG_ERR_BAD_PASSPHRASE = 11,	/* Bad passphrase.  */
+    GPG_ERR_CIPHER_ALGO = 12,		/* Invalid cipher algorithm.  */
+    GPG_ERR_KEYRING_OPEN = 13,
+    GPG_ERR_INV_PACKET = 14,
+    GPG_ERR_INV_ARMOR = 15,
+    GPG_ERR_NO_USER_ID = 16,
+    GPG_ERR_NO_SECKEY = 17,		/* Secret key not available.  */
+    GPG_ERR_WRONG_SECKEY = 18,		/* Wrong secret key used.  */
+    GPG_ERR_BAD_KEY = 19,		/* Bad (session) key.  */
+    GPG_ERR_COMPR_ALGO = 20,		/* Unknown compress algorithm.  */
+    GPG_ERR_FILE_READ = 21,
+    GPG_ERR_FILE_WRITE = 22,
+    GPG_ERR_FILE_OPEN = 23,
+    GPG_ERR_FILE_CREATE = 24,
+    GPG_ERR_FILE_CLOSE = 25,
+    GPG_ERR_FILE_RENAME = 26,
+    GPG_ERR_FILE_DELETE = 27,
+    GPG_ERR_FILE_EXISTS = 28,
+    GPG_ERR_FILE = 29,
+    GPG_ERR_BAD_MPI = 30,		/* Problem with an MPI's value.  */
+    GPG_ERR_INV_PASSPHRASE = 31,	/* Invalid passphrase.  */
+    GPG_ERR_SIG_CLASS = 32,
+    GPG_ERR_RESOURCE_LIMIT = 33,
+    GPG_ERR_INV_KEYRING = 34,
+    GPG_ERR_TRUSTDB = 35,		/* A problem with the trustdb.  */
+    GPG_ERR_BAD_CERT = 36,		/* Bad certicate.  */
+    GPG_ERR_INV_USER_ID = 37,
+    GPG_ERR_UNEXPECTED = 38,
+    GPG_ERR_TIME_CONFLICT = 39,
+    GPG_ERR_KEYSERVER = 40,
+    GPG_ERR_WRONG_PUBKEY_ALGO = 41,	/* Wrong public key algorithm.  */
+    GPG_ERR_IO = 42,			/* I/O error.  */
+    GPG_ERR_WEAK_KEY = 43,		/* Weak encryption key.  */
+    GPG_ERR_INV_KEYLEN = 44,		/* Invalid length of a key.  */
+    GPG_ERR_INV_ARG = 45,		/* Invalid argument.  */
+    GPG_ERR_BAD_URI = 46,		/* Syntax error in URI.  */
+    GPG_ERR_INV_URI = 47,		/* Unsupported scheme and similar.  */
+    GPG_ERR_NETWORK = 48,		/* General network error.  */
+    GPG_ERR_UNKNOWN_HOST = 49,
+    GPG_ERR_SELFTEST_FAILED = 50,	/* Selftest failed.  */
+    GPG_ERR_NOT_ENCRYPTED = 51,
+    GPG_ERR_NOT_PROCESSED = 52,
+    GPG_ERR_UNUSABLE_PUBKEY = 53,
+    GPG_ERR_UNUSABLE_SECKEY = 54,
+    GPG_ERR_INV_VALUE = 55,		/* Invalid value.  */
+    GPG_ERR_BAD_CERT_CHAIN = 56,
+    GPG_ERR_MISSING_CERT = 57,
+    GPG_ERR_NO_DATA = 58,
+    GPG_ERR_BUG = 59,
+    GPG_ERR_NOT_SUPPORTED = 60,
+    GPG_ERR_INV_OP = 61,		/* Invalid operation code.  */
+    GPG_ERR_OUT_OF_CORE = 62,		/* Out of core ("Keine Kerne").  */
+    GPG_ERR_INTERNAL = 63,		/* Internal error.  */
+    GPG_ERR_EOF_GCRYPT = 64,		/* Compatibility for gcrypt.  */
+    GPG_ERR_INV_OBJ = 65,		/* An object is not valid.  */
+    GPG_ERR_TOO_SHORT = 66,		/* Provided object is too short.  */
+    GPG_ERR_TOO_LARGE = 67,		/* Provided object is too large.  */
+    GPG_ERR_NO_OBJ = 68,		/* Missing item in an object.  */
+    GPG_ERR_NOT_IMPLEMENTED = 69,	/* Not implemented.  */
+    GPG_ERR_CONFLICT = 70,		/* Conflicting use.  */
+    GPG_ERR_INV_CIPHER_MODE = 71,	/* Invalid cipher mode.  */ 
+    GPG_ERR_INV_FLAG = 72,		/* Invalid flag.  */
+    GPG_ERR_READ_ERROR = 73,
+    GPG_ERR_WRITE_ERROR = 74,
+    GPG_ERR_INCOMPLETE_LINE = 75,
+    GPG_ERR_INVALID_RESPONSE = 76,
+    GPG_ERR_NO_AGENT = 77,
+    GPG_ERR_AGENT_ERROR = 78,
+    GPG_ERR_INV_DATA = 79,
+    GPG_ERR_ASSUAN_SERVER_FAULT = 80,
+    GPG_ERR_ASSUAN_ERROR = 81,		/* Catch all assuan error.  */
+    GPG_ERR_INV_SESSION_KEY = 82,
+    GPG_ERR_INV_SEXP = 83,
+    GPG_ERR_UNSUPPORTED_ALGORITHM = 84,
+    GPG_ERR_NO_PIN_ENTRY = 85,
+    GPG_ERR_PIN_ENTRY_ERROR = 86,
+    GPG_ERR_BAD_PIN = 87,
+    GPG_ERR_INV_NAME = 88,
+    GPG_ERR_BAD_DATA = 89,
+    GPG_ERR_INV_PARAMETER = 90,
+    GPG_ERR_TRIBUTE_TO_D_A = 91,
+    GPG_ERR_NO_DIRMNGR = 92,
+    GPG_ERR_DIRMNGR_ERROR = 93,
+    GPG_ERR_CERT_REVOKED = 94,
+    GPG_ERR_NO_CRL_KNOWN = 95,
+    GPG_ERR_CRL_TOO_OLD = 96,
+    GPG_ERR_LINE_TOO_LONG = 97,
+    GPG_ERR_NOT_TRUSTED = 98,
+    GPG_ERR_CANCELED = 109,
+    GPG_ERR_BAD_CA_CERT = 100,
+    GPG_ERR_CERT_EXPIRED = 101,
+    GPG_ERR_CERT_TOO_YOUNG = 102,
+    GPG_ERR_UNSUPPORTED_CERT = 103,
+    GPG_ERR_UNKNOWN_SEXP = 104,
+    GPG_ERR_UNSUPPORTED_PROTECTION = 105,
+    GPG_ERR_CORRUPTED_PROTECTION = 106,
+    GPG_ERR_AMBIGUOUS_NAME = 107,
+    GPG_ERR_CARD_ERROR = 108,
+    GPG_ERR_CARD_RESET = 109,
+    GPG_ERR_CARD_REMOVED = 110,
+    GPG_ERR_INVALID_CARD = 111,
+    GPG_ERR_CARD_NOT_PRESENT = 112,
+    GPG_ERR_NO_PKCS15_APP = 113,
+    GPG_ERR_NOT_CONFIRMED = 114,
+    GPG_ERR_CONFIGURATION_ERROR = 115,
+    GPG_ERR_NO_POLICY_MATCH = 116,
+    GPG_ERR_INVALID_INDEX = 117,
+    GPG_ERR_INVALID_ID = 118,
+    GPG_ERR_NO_SCDAEMON = 119,
+    GPG_ERR_SCDAEMON_ERROR = 120,
+    GPG_ERR_UNSUPPORTED_PROTOCOL = 121,
+    GPG_ERR_BAD_PIN_METHOD = 122,
+    GPG_ERR_CARD_NOT_INITIALIZED = 123,
+    GPG_ERR_UNSUPPORTED_OPERATION = 124,
+    GPG_ERR_WRONG_KEY_USAGE = 125,
+
+    /* Error codes pertaining to S-expressions.  */
+    GPG_ERR_SEXP_INV_LEN_SPEC = 201,
+    GPG_ERR_SEXP_STRING_TOO_LONG = 202,
+    GPG_ERR_SEXP_UNMATCHED_PAREN = 203, 
+    GPG_ERR_SEXP_NOT_CANONICAL = 204, 
+    GPG_ERR_SEXP_BAD_CHARACTER = 205, 
+    GPG_ERR_SEXP_BAD_QUOTATION = 206,	/* Or invalid hex or octal value.  */
+    GPG_ERR_SEXP_ZERO_PREFIX = 207,	/* First character of length is 0.  */
+    GPG_ERR_SEXP_NESTED_DH = 208,	/* Nested display hints.  */
+    GPG_ERR_SEXP_UNMATCHED_DH = 209,	/* Unmatched display hint.  */
+    GPG_ERR_SEXP_UNEXPECTED_PUNC = 210,	/* Unexpected reserved punctuation. */
+    GPG_ERR_SEXP_BAD_HEX_CHAR = 211,
+    GPG_ERR_SEXP_ODD_HEX_NUMBERS = 212,
+    GPG_ERR_SEXP_BAD_OCT_CHAR = 213,
+
+    GPG_ERR_EOF = 16383,		/* This was once a -1.  Pity.  */
+
+    /* This is one more than the largest allowed entry.  */
+    GPG_ERR_CODE_DIM = 16384
+  } gpg_err_code_t;
+
+
+/* The error value type gpg_error_t.  */
+
+/* We would really like to use bit-fields in a struct, but using
+   structs as return values can cause binary compatibility issues, in
+   particular if you want to do it effeciently (also see
+   -freg-struct-return option to GCC).  */
+typedef unsigned long gpg_error_t;
+
+/* We use the lowest 16 bits of gpg_error_t for error codes.  */
+#define GPG_ERR_CODE_MASK	(GPG_ERR_CODE_DIM - 1)
+
+/* Bits 17 to 24 are reserved.  */
+
+/* We use the upper 8 bits of gpg_error_t for error sources.  */
+#define GPG_ERR_SOURCE_MASK	(GPG_ERR_SOURCE_DIM - 1)
+#define GPG_ERR_SOURCE_SHIFT	24
+
+
+/* Constructor and accessor functions.  */
+
+/* Construct an error value from an error code and source.  Within a
+   subsystem, use gpg_error.  */
+static __inline__ gpg_error_t
+gpg_make_error (gpg_err_source_t source, gpg_err_code_t code)
+{
+  return ((source & GPG_ERR_SOURCE_MASK) << GPG_ERR_SOURCE_SHIFT)
+    | (code & GPG_ERR_CODE_MASK);
+}
+
+
+/* The user should define GPG_ERR_SOURCE_DEFAULT before including this
+   file to specify a default source for gpg_error.  */
+#ifndef GPG_ERR_SOURCE_DEFAULT
+#define GPG_ERR_SOURCE_DEFAULT	GPG_ERR_SOURCE_UNKNOWN
+#endif
+
+static __inline__ gpg_error_t
+gpg_error (gpg_err_code_t code)
+{
+  return gpg_make_error (GPG_ERR_SOURCE_DEFAULT, code);
+}
+
+
+/* Retrieve the error code from an error value.  */
+static __inline__ gpg_err_code_t
+gpg_err_code (gpg_error_t err)
+{
+  return err & GPG_ERR_CODE_MASK;
+}
+
+
+/* Retrieve the error source from an error value.  */
+static __inline__ gpg_err_source_t
+gpg_err_source (gpg_error_t err)
+{
+  return (err >> GPG_ERR_SOURCE_SHIFT) & GPG_ERR_SOURCE_MASK;
+}
+
+
+/* String functions.  */
+
+/* Return a pointer to a string containing a description of the error
+   code in the error value ERR.  */
+const char *gpg_strerror (gpg_error_t err);
+
+/* Return a pointer to a string containing a description of the error
+   source in the error value ERR.  */
+const char *gpg_strsource (gpg_error_t err);
+
+#endif	/* GPG_ERROR_H */
diff --git a/src/mkstrtable.awk b/src/mkstrtable.awk
new file mode 100644
index 0000000..a42bc07
--- /dev/null
+++ b/src/mkstrtable.awk
@@ -0,0 +1,127 @@
+# Copyright (C) 2003 g10 Code GmbH
+# This file is part of libgpg-error.
+
+# libgpg-error is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+
+# libgpg-error 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
+# Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library; if not, write to the Free
+# Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+# 02111-1307 USA.
+
+# This script outputs a source file that does define the following
+# symbols:
+#
+# static const char msgstr[];
+# A string containing all messages in the list.
+#
+# static const int msgidx[];
+# A list of index numbers, one for each message, that points to the
+# beginning of the string in msgstr.
+#
+# msgidxof (code);
+# A macro that maps code numbers to idx numbers.  If a DEFAULT MESSAGE
+# is provided (see below), its index will be returned for unknown codes.
+# Otherwise -1 is returned for codes that do not appear in the list.
+# You can lookup the message with code CODE with:
+# msgstr + msgidx[msgidxof (code)].
+#
+# The input file has the following format:
+# CODE1	MESSAGE1		(Code number, <tab>, message string)
+# CODE2	MESSAGE2		(Code number, <tab>, message string)
+# ...
+# CODEn	MESSAGEn		(Code number, <tab>, message string)
+# 	DEFAULT MESSAGE		(<tab>, fall-back message string)
+#
+# Comments (starting with # and ending at the end of the line) are removed,
+# as is trailing whitespace.  The last line is optional; if no DEFAULT
+# MESSAGE is given, msgidxof will return the number -1 for unknown
+# index numbers.
+
+BEGIN {
+  FS = "\t";
+# cpos holds the current position in the message string.
+  cpos = 0;
+# msg holds the number of messages.
+  msg = 0;
+  print "/* Output of mkstrtable.awk.  DO NOT EDIT.  */";
+  print "";
+  print "/* The purpose of this complex string table is to produce";
+  print "   optimal code with a minimum of relocations.  */";
+  print "";
+  print "static const char msgstr[] = ";
+}
+
+{
+  sub (/\#.+/, "");
+  sub (/[ 	]+$/, ""); # Strip trailing space and tab characters.
+  if (/^$/)
+    next;
+
+# Print the string msgstr line by line.  We delay output by one line to be able
+# to treat the last line differently (see END).
+  if (last_msgstr)
+    print "  gettext_noop (\"" last_msgstr "\") \"\\0\"";
+  last_msgstr = $2;
+
+# Remember the error code and msgidx of each error message.
+  code[msg] = $1;
+  pos[msg] = cpos;
+  cpos += length ($2) + 1;
+  msg++;
+
+  if ($1 == "")
+    {
+      has_default = 1;
+      exit;
+    }
+}
+END {
+  if (has_default)
+    coded_msgs = msg - 1;
+  else
+    coded_msgs = msg;
+
+  print "  gettext_noop (\"" last_msgstr "\");";
+  print "";
+  print "static const int msgidx[] =";
+  print "  {";
+  for (i = 0; i < coded_msgs; i++)
+    print "    " pos[i] ",";
+  print "    " pos[coded_msgs];
+  print "  };";
+  print "";
+  print "#define msgidxof(code) (0 ? -1 \\";
+
+# Gather the ranges.
+  skip = code[0];
+  start = code[0];
+  stop = code[0];
+  for (i = 1; i < coded_msgs; i++)
+    {
+      if (code[i] == stop + 1)
+	stop++;
+      else
+	{
+	  print "  : ((code >= " start ") && (code <= " stop ")) ? (code - " \
+            skip ") \\";
+	  skip += code[i] - stop - 1;
+	  start = code[i];
+	  stop = code[i];
+	}
+    }
+  print "  : ((code >= " start ") && (code <= " stop ")) ? (code - " \
+    skip ") \\";
+  if (has_default)
+    print "  : " stop + 1 " - " skip ")";
+  else
+    print "  : -1)";
+    
+ }
diff --git a/src/strerror.c b/src/strerror.c
new file mode 100644
index 0000000..8c41c38
--- /dev/null
+++ b/src/strerror.c
@@ -0,0 +1,36 @@
+/* strerror.c - Describing an error code.
+   Copyright (C) 2003 g10 Code GmbH
+
+   This file is part of libgpg-error.
+ 
+   libgpg-error 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 2 of the
+   License, or (at your option) any later version.
+ 
+   libgpg-error 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 GPGME; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#if HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <gpg/error.h>
+
+#include "gettext.h"
+#include "err-codes.h"
+
+/* Return a pointer to a string containing a description of the error
+   code in the error value ERR.  */
+const char *
+gpg_strerror (gpg_error_t err)
+{
+  gpg_err_code_t code = gpg_err_code (err);
+  return dgettext (PACKAGE, msgstr + msgidx[msgidxof (code)]);
+}
diff --git a/src/strsource.c b/src/strsource.c
new file mode 100644
index 0000000..c0c4c8f
--- /dev/null
+++ b/src/strsource.c
@@ -0,0 +1,36 @@
+/* strsource.c - Describing an error source.
+   Copyright (C) 2003 g10 Code GmbH
+
+   This file is part of libgpg-error.
+ 
+   libgpg-error 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 2 of the
+   License, or (at your option) any later version.
+ 
+   libgpg-error 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 GPGME; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#if HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <gpg/error.h>
+
+#include "gettext.h"
+#include "err-sources.h"
+
+/* Return a pointer to a string containing a description of the error
+   source in the error value ERR.  */
+const char *
+gpg_strsource (gpg_error_t err)
+{
+  gpg_err_source_t source = gpg_err_source (err);
+  return dgettext (PACKAGE, msgstr + msgidx[msgidxof (source)]);
+}