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-rw-r--r--ssherr.c151
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+/* $OpenBSD: ssherr.c,v 1.10 2020/01/25 23:13:09 djm Exp $ */
+/*
+ * Copyright (c) 2011 Damien Miller
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <errno.h>
+#include <string.h>
+#include "ssherr.h"
+
+const char *
+ssh_err(int n)
+{
+ switch (n) {
+ case SSH_ERR_SUCCESS:
+ return "success";
+ case SSH_ERR_INTERNAL_ERROR:
+ return "unexpected internal error";
+ case SSH_ERR_ALLOC_FAIL:
+ return "memory allocation failed";
+ case SSH_ERR_MESSAGE_INCOMPLETE:
+ return "incomplete message";
+ case SSH_ERR_INVALID_FORMAT:
+ return "invalid format";
+ case SSH_ERR_BIGNUM_IS_NEGATIVE:
+ return "bignum is negative";
+ case SSH_ERR_STRING_TOO_LARGE:
+ return "string is too large";
+ case SSH_ERR_BIGNUM_TOO_LARGE:
+ return "bignum is too large";
+ case SSH_ERR_ECPOINT_TOO_LARGE:
+ return "elliptic curve point is too large";
+ case SSH_ERR_NO_BUFFER_SPACE:
+ return "insufficient buffer space";
+ case SSH_ERR_INVALID_ARGUMENT:
+ return "invalid argument";
+ case SSH_ERR_KEY_BITS_MISMATCH:
+ return "key bits do not match";
+ case SSH_ERR_EC_CURVE_INVALID:
+ return "invalid elliptic curve";
+ case SSH_ERR_KEY_TYPE_MISMATCH:
+ return "key type does not match";
+ case SSH_ERR_KEY_TYPE_UNKNOWN:
+ return "unknown or unsupported key type";
+ case SSH_ERR_EC_CURVE_MISMATCH:
+ return "elliptic curve does not match";
+ case SSH_ERR_EXPECTED_CERT:
+ return "plain key provided where certificate required";
+ case SSH_ERR_KEY_LACKS_CERTBLOB:
+ return "key lacks certificate data";
+ case SSH_ERR_KEY_CERT_UNKNOWN_TYPE:
+ return "unknown/unsupported certificate type";
+ case SSH_ERR_KEY_CERT_INVALID_SIGN_KEY:
+ return "invalid certificate signing key";
+ case SSH_ERR_KEY_INVALID_EC_VALUE:
+ return "invalid elliptic curve value";
+ case SSH_ERR_SIGNATURE_INVALID:
+ return "incorrect signature";
+ case SSH_ERR_LIBCRYPTO_ERROR:
+ return "error in libcrypto"; /* XXX fetch and return */
+ case SSH_ERR_UNEXPECTED_TRAILING_DATA:
+ return "unexpected bytes remain after decoding";
+ case SSH_ERR_SYSTEM_ERROR:
+ return strerror(errno);
+ case SSH_ERR_KEY_CERT_INVALID:
+ return "invalid certificate";
+ case SSH_ERR_AGENT_COMMUNICATION:
+ return "communication with agent failed";
+ case SSH_ERR_AGENT_FAILURE:
+ return "agent refused operation";
+ case SSH_ERR_DH_GEX_OUT_OF_RANGE:
+ return "DH GEX group out of range";
+ case SSH_ERR_DISCONNECTED:
+ return "disconnected";
+ case SSH_ERR_MAC_INVALID:
+ return "message authentication code incorrect";
+ case SSH_ERR_NO_CIPHER_ALG_MATCH:
+ return "no matching cipher found";
+ case SSH_ERR_NO_MAC_ALG_MATCH:
+ return "no matching MAC found";
+ case SSH_ERR_NO_COMPRESS_ALG_MATCH:
+ return "no matching compression method found";
+ case SSH_ERR_NO_KEX_ALG_MATCH:
+ return "no matching key exchange method found";
+ case SSH_ERR_NO_HOSTKEY_ALG_MATCH:
+ return "no matching host key type found";
+ case SSH_ERR_PROTOCOL_MISMATCH:
+ return "protocol version mismatch";
+ case SSH_ERR_NO_PROTOCOL_VERSION:
+ return "could not read protocol version";
+ case SSH_ERR_NO_HOSTKEY_LOADED:
+ return "could not load host key";
+ case SSH_ERR_NEED_REKEY:
+ return "rekeying not supported by peer";
+ case SSH_ERR_PASSPHRASE_TOO_SHORT:
+ return "passphrase is too short (minimum five characters)";
+ case SSH_ERR_FILE_CHANGED:
+ return "file changed while reading";
+ case SSH_ERR_KEY_UNKNOWN_CIPHER:
+ return "key encrypted using unsupported cipher";
+ case SSH_ERR_KEY_WRONG_PASSPHRASE:
+ return "incorrect passphrase supplied to decrypt private key";
+ case SSH_ERR_KEY_BAD_PERMISSIONS:
+ return "bad permissions";
+ case SSH_ERR_KEY_CERT_MISMATCH:
+ return "certificate does not match key";
+ case SSH_ERR_KEY_NOT_FOUND:
+ return "key not found";
+ case SSH_ERR_AGENT_NOT_PRESENT:
+ return "agent not present";
+ case SSH_ERR_AGENT_NO_IDENTITIES:
+ return "agent contains no identities";
+ case SSH_ERR_BUFFER_READ_ONLY:
+ return "internal error: buffer is read-only";
+ case SSH_ERR_KRL_BAD_MAGIC:
+ return "KRL file has invalid magic number";
+ case SSH_ERR_KEY_REVOKED:
+ return "Key is revoked";
+ case SSH_ERR_CONN_CLOSED:
+ return "Connection closed";
+ case SSH_ERR_CONN_TIMEOUT:
+ return "Connection timed out";
+ case SSH_ERR_CONN_CORRUPT:
+ return "Connection corrupted";
+ case SSH_ERR_PROTOCOL_ERROR:
+ return "Protocol error";
+ case SSH_ERR_KEY_LENGTH:
+ return "Invalid key length";
+ case SSH_ERR_NUMBER_TOO_LARGE:
+ return "number is too large";
+ case SSH_ERR_SIGN_ALG_UNSUPPORTED:
+ return "signature algorithm not supported";
+ case SSH_ERR_FEATURE_UNSUPPORTED:
+ return "requested feature not supported";
+ case SSH_ERR_DEVICE_NOT_FOUND:
+ return "device not found";
+ default:
+ return "unknown error";
+ }
+}