Import of old SSLeay release: SSLeay 0.8.1b
diff --git a/crypto/err/err.c b/crypto/err/err.c
new file mode 100644
index 0000000..6eec77a
--- /dev/null
+++ b/crypto/err/err.c
@@ -0,0 +1,550 @@
+/* crypto/err/err.c */
+/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to. The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code. The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * "This product includes cryptographic software written by
+ * Eric Young (eay@cryptsoft.com)"
+ * The word 'cryptographic' can be left out if the rouines from the library
+ * being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ * the apps directory (application code) you must include an acknowledgement:
+ * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed. i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#include <stdio.h>
+#include "lhash.h"
+#include "crypto.h"
+#include "cryptlib.h"
+#include "buffer.h"
+#include "err.h"
+#include "crypto.h"
+
+
+static LHASH *error_hash=NULL;
+static LHASH *thread_hash=NULL;
+
+#ifndef NOPROTO
+static unsigned long err_hash(ERR_STRING_DATA *a);
+static int err_cmp(ERR_STRING_DATA *a, ERR_STRING_DATA *b);
+static unsigned long pid_hash(ERR_STATE *pid);
+static int pid_cmp(ERR_STATE *a,ERR_STATE *pid);
+#else
+static unsigned long err_hash();
+static int err_cmp();
+static unsigned long pid_hash();
+static int pid_cmp();
+#endif
+
+#ifndef NO_ERR
+static ERR_STRING_DATA ERR_str_libraries[]=
+ {
+{ERR_PACK(ERR_LIB_NONE,0,0) ,"unknown library"},
+{ERR_PACK(ERR_LIB_SYS,0,0) ,"system library"},
+{ERR_PACK(ERR_LIB_BN,0,0) ,"bignum routines"},
+{ERR_PACK(ERR_LIB_RSA,0,0) ,"rsa routines"},
+{ERR_PACK(ERR_LIB_DH,0,0) ,"Diffie-Hellman routines"},
+{ERR_PACK(ERR_LIB_EVP,0,0) ,"digital envelope routines"},
+{ERR_PACK(ERR_LIB_BUF,0,0) ,"memory buffer routines"},
+{ERR_PACK(ERR_LIB_BIO,0,0) ,"BIO routines"},
+{ERR_PACK(ERR_LIB_OBJ,0,0) ,"object identifier routines"},
+{ERR_PACK(ERR_LIB_PEM,0,0) ,"PEM routines"},
+{ERR_PACK(ERR_LIB_ASN1,0,0) ,"asn1 encoding routines"},
+{ERR_PACK(ERR_LIB_X509,0,0) ,"x509 certificate routines"},
+{ERR_PACK(ERR_LIB_CONF,0,0) ,"configuation file routines"},
+{ERR_PACK(ERR_LIB_METH,0,0) ,"X509 lookup 'method' routines"},
+{ERR_PACK(ERR_LIB_SSL,0,0) ,"SSL routines"},
+{ERR_PACK(ERR_LIB_RSAREF,0,0) ,"RSAref routines"},
+{ERR_PACK(ERR_LIB_PROXY,0,0) ,"Proxy routines"},
+{ERR_PACK(ERR_LIB_BIO,0,0) ,"BIO routines"},
+{ERR_PACK(ERR_LIB_PKCS7,0,0) ,"PKCS7 routines"},
+{0,NULL},
+ };
+
+static ERR_STRING_DATA ERR_str_functs[]=
+ {
+ {ERR_PACK(0,SYS_F_FOPEN,0), "fopen"},
+ {ERR_PACK(0,SYS_F_CONNECT,0), "connect"},
+ {ERR_PACK(0,SYS_F_GETSERVBYNAME,0), "getservbyname"},
+ {ERR_PACK(0,SYS_F_SOCKET,0), "socket"},
+ {ERR_PACK(0,SYS_F_IOCTLSOCKET,0), "ioctlsocket"},
+ {ERR_PACK(0,SYS_F_BIND,0), "bind"},
+ {ERR_PACK(0,SYS_F_LISTEN,0), "listen"},
+ {ERR_PACK(0,SYS_F_ACCEPT,0), "accept"},
+#ifdef WINDOWS
+ {ERR_PACK(0,SYS_F_WSASTARTUP,0), "WSAstartup"},
+#endif
+ {0,NULL},
+ };
+
+static ERR_STRING_DATA ERR_str_reasons[]=
+ {
+{ERR_R_FATAL ,"fatal"},
+{ERR_R_SYS_LIB ,"system lib"},
+{ERR_R_BN_LIB ,"BN lib"},
+{ERR_R_RSA_LIB ,"RSA lib"},
+{ERR_R_DH_LIB ,"DH lib"},
+{ERR_R_EVP_LIB ,"EVP lib"},
+{ERR_R_BUF_LIB ,"BUF lib"},
+{ERR_R_BIO_LIB ,"BIO lib"},
+{ERR_R_OBJ_LIB ,"OBJ lib"},
+{ERR_R_PEM_LIB ,"PEM lib"},
+{ERR_R_X509_LIB ,"X509 lib"},
+{ERR_R_METH_LIB ,"METH lib"},
+{ERR_R_ASN1_LIB ,"ASN1 lib"},
+{ERR_R_CONF_LIB ,"CONF lib"},
+{ERR_R_SSL_LIB ,"SSL lib"},
+{ERR_R_PROXY_LIB ,"PROXY lib"},
+{ERR_R_BIO_LIB ,"BIO lib"},
+{ERR_R_PKCS7_LIB ,"PKCS7 lib"},
+{ERR_R_MALLOC_FAILURE ,"Malloc failure"},
+{ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED ,"called a fuction you should not call"},
+{0,NULL},
+ };
+#endif
+
+void ERR_load_ERR_strings()
+ {
+ static int init=1;
+
+ if (init)
+ {
+ CRYPTO_w_lock(CRYPTO_LOCK_ERR);
+ if (init == 0)
+ {
+ CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
+ return;
+ }
+ init=0;
+ CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
+
+#ifndef NO_ERR
+ ERR_load_strings(0,ERR_str_libraries);
+ ERR_load_strings(0,ERR_str_reasons);
+ ERR_load_strings(ERR_LIB_SYS,ERR_str_functs);
+#endif
+ }
+ }
+
+void ERR_load_strings(lib,str)
+int lib;
+ERR_STRING_DATA *str;
+ {
+ if (error_hash == NULL)
+ {
+ CRYPTO_w_lock(CRYPTO_LOCK_ERR_HASH);
+ error_hash=lh_new(err_hash,err_cmp);
+ if (error_hash == NULL)
+ {
+ CRYPTO_w_unlock(CRYPTO_LOCK_ERR_HASH);
+ return;
+ }
+ CRYPTO_w_unlock(CRYPTO_LOCK_ERR_HASH);
+
+ ERR_load_ERR_strings();
+ }
+
+ CRYPTO_w_lock(CRYPTO_LOCK_ERR_HASH);
+ while (str->error)
+ {
+ str->error|=ERR_PACK(lib,0,0);
+ lh_insert(error_hash,(char *)str);
+ str++;
+ }
+ CRYPTO_w_unlock(CRYPTO_LOCK_ERR_HASH);
+ }
+
+void ERR_free_strings()
+ {
+ CRYPTO_w_lock(CRYPTO_LOCK_ERR);
+
+ if (error_hash != NULL)
+ {
+ lh_free(error_hash);
+ error_hash=NULL;
+ }
+
+ CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
+ }
+
+void ERR_put_error(lib,func,reason,file,line)
+int lib,func,reason;
+char *file;
+int line;
+ {
+ ERR_STATE *es;
+
+ es=ERR_get_state();
+
+ es->top=(es->top+1)%ERR_NUM_ERRORS;
+ if (es->top == es->bottom)
+ es->bottom=(es->bottom+1)%ERR_NUM_ERRORS;
+ es->err_buffer[es->top]=ERR_PACK(lib,func,reason);
+ es->err_file[es->top]=file;
+ es->err_line[es->top]=line;
+ }
+
+void ERR_clear_error()
+ {
+ int i;
+ ERR_STATE *es;
+
+ es=ERR_get_state();
+
+ for (i=0; i<ERR_NUM_ERRORS; i++)
+ {
+ es->err_buffer[i]=0;
+ es->err_file[i]=NULL;
+ es->err_line[i]= -1;
+ }
+ es->top=es->bottom=0;
+ }
+
+unsigned long ERR_peek_error()
+ {
+ int i;
+ ERR_STATE *es;
+
+ /* should be fine since only one thread should ever be playing
+ * with the value returned from this call */
+ es=ERR_get_state();
+
+ if (es->bottom == es->top) return(0);
+ i=(es->bottom+1)%ERR_NUM_ERRORS;
+
+
+ return(es->err_buffer[i]);
+ }
+
+unsigned long ERR_get_error()
+ {
+ int i;
+ unsigned long ret;
+ ERR_STATE *es;
+
+ es=ERR_get_state();
+
+ if (es->bottom == es->top) return(0);
+ i=(es->bottom+1)%ERR_NUM_ERRORS;
+ es->bottom=i;
+ ret=es->err_buffer[i];
+ es->err_buffer[i]=0;
+
+
+ return(ret);
+ }
+
+unsigned long ERR_peek_error_line(file,line)
+char **file;
+int *line;
+ {
+ int i=0;
+ ERR_STATE *es;
+
+ es=ERR_get_state();
+
+ if (es->bottom == es->top)
+ {
+ return(0);
+ }
+
+ i=(es->bottom+1)%ERR_NUM_ERRORS;
+ if (es->err_file[i] == NULL)
+ {
+ *file="NA";
+ *line=0;
+ }
+ else
+ {
+ *file=es->err_file[i];
+ *line=es->err_line[i];
+ }
+
+ return(es->err_buffer[i]);
+ }
+
+unsigned long ERR_get_error_line(file,line)
+char **file;
+int *line;
+ {
+ int i;
+ unsigned long ret;
+ ERR_STATE *es;
+
+ es=ERR_get_state();
+
+ if (es->bottom == es->top)
+ return(0);
+
+ i=(es->bottom+1)%ERR_NUM_ERRORS;
+ es->bottom=i;
+ ret= es->err_buffer[i];
+ if (es->err_file[i] == NULL)
+ {
+ *file="NA";
+ *line=0;
+ }
+ else
+ {
+ *file=es->err_file[i];
+ *line=es->err_line[i];
+ }
+ es->err_buffer[i]=0;
+ es->err_file[i]=NULL;
+ es->err_line[i]= -1;
+
+ return(ret);
+ }
+
+/* BAD for multi-threaded, uses a local buffer if ret == NULL */
+char *ERR_error_string(e,ret)
+unsigned long e;
+char *ret;
+ {
+ static char buf[256];
+ char *ls,*fs,*rs;
+ unsigned long l,f,r;
+ int i;
+
+ l=ERR_GET_LIB(e);
+ f=ERR_GET_FUNC(e);
+ r=ERR_GET_REASON(e);
+
+ ls=ERR_lib_error_string(e);
+ fs=ERR_func_error_string(e);
+ rs=ERR_reason_error_string(e);
+
+ if (ret == NULL) ret=buf;
+
+ sprintf(&(ret[0]),"error:%08lX:",e);
+ i=strlen(ret);
+ if (ls == NULL)
+ sprintf(&(ret[i]),":lib(%lu) ",l);
+ else sprintf(&(ret[i]),"%s",ls);
+ i=strlen(ret);
+ if (fs == NULL)
+ sprintf(&(ret[i]),":func(%lu) ",f);
+ else sprintf(&(ret[i]),":%s",fs);
+ i=strlen(ret);
+ if (rs == NULL)
+ sprintf(&(ret[i]),":reason(%lu)",r);
+ else sprintf(&(ret[i]),":%s",rs);
+
+ return(ret);
+ }
+
+LHASH *ERR_get_string_table()
+ {
+ return(error_hash);
+ }
+
+LHASH *ERR_get_err_state_table()
+ {
+ return(thread_hash);
+ }
+
+char *ERR_lib_error_string(e)
+unsigned long e;
+ {
+ ERR_STRING_DATA d,*p=NULL;
+ unsigned long l;
+
+ l=ERR_GET_LIB(e);
+
+ CRYPTO_r_lock(CRYPTO_LOCK_ERR_HASH);
+
+ if (error_hash != NULL)
+ {
+ d.error=ERR_PACK(l,0,0);
+ p=(ERR_STRING_DATA *)lh_retrieve(error_hash,(char *)&d);
+ }
+
+ CRYPTO_r_unlock(CRYPTO_LOCK_ERR_HASH);
+
+ return((p == NULL)?NULL:p->string);
+ }
+
+char *ERR_func_error_string(e)
+unsigned long e;
+ {
+ ERR_STRING_DATA d,*p=NULL;
+ unsigned long l,f;
+
+ l=ERR_GET_LIB(e);
+ f=ERR_GET_FUNC(e);
+
+ CRYPTO_r_lock(CRYPTO_LOCK_ERR_HASH);
+
+ if (error_hash != NULL)
+ {
+ d.error=ERR_PACK(l,f,0);
+ p=(ERR_STRING_DATA *)lh_retrieve(error_hash,(char *)&d);
+ }
+
+ CRYPTO_r_unlock(CRYPTO_LOCK_ERR_HASH);
+
+ return((p == NULL)?NULL:p->string);
+ }
+
+char *ERR_reason_error_string(e)
+unsigned long e;
+ {
+ ERR_STRING_DATA d,*p=NULL;
+ unsigned long l,r;
+
+ l=ERR_GET_LIB(e);
+ r=ERR_GET_REASON(e);
+
+ CRYPTO_r_lock(CRYPTO_LOCK_ERR_HASH);
+
+ if (error_hash != NULL)
+ {
+ d.error=ERR_PACK(l,0,r);
+ p=(ERR_STRING_DATA *)lh_retrieve(error_hash,(char *)&d);
+ if (p == NULL)
+ {
+ d.error=ERR_PACK(0,0,r);
+ p=(ERR_STRING_DATA *)lh_retrieve(error_hash,
+ (char *)&d);
+ }
+ }
+
+ CRYPTO_r_unlock(CRYPTO_LOCK_ERR_HASH);
+
+ return((p == NULL)?NULL:p->string);
+ }
+
+static unsigned long err_hash(a)
+ERR_STRING_DATA *a;
+ {
+ unsigned long ret,l;
+
+ l=a->error;
+ ret=l^ERR_GET_LIB(l)^ERR_GET_FUNC(l);
+ return(ret^ret%19*13);
+ }
+
+static int err_cmp(a,b)
+ERR_STRING_DATA *a,*b;
+ {
+ return((int)(a->error-b->error));
+ }
+
+static unsigned long pid_hash(a)
+ERR_STATE *a;
+ {
+ return(a->pid*13);
+ }
+
+static int pid_cmp(a,b)
+ERR_STATE *a,*b;
+ {
+ return((int)((long)a->pid - (long)b->pid));
+ }
+
+void ERR_remove_state(pid)
+unsigned long pid;
+ {
+ ERR_STATE *p,tmp;
+
+ if (thread_hash == NULL)
+ return;
+ if (pid == 0)
+ pid=(unsigned long)CRYPTO_thread_id();
+ tmp.pid=pid;
+ CRYPTO_w_lock(CRYPTO_LOCK_ERR);
+ p=(ERR_STATE *)lh_delete(thread_hash,(char *)&tmp);
+ if (p != NULL) Free(p);
+ CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
+ }
+
+ERR_STATE *ERR_get_state()
+ {
+ static ERR_STATE fallback;
+ ERR_STATE *ret=NULL,tmp,*tmpp;
+ unsigned long pid;
+
+ pid=(unsigned long)CRYPTO_thread_id();
+
+ CRYPTO_r_lock(CRYPTO_LOCK_ERR);
+ if (thread_hash == NULL)
+ {
+ CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
+ CRYPTO_w_lock(CRYPTO_LOCK_ERR);
+ if (thread_hash == NULL)
+ {
+ thread_hash=lh_new(pid_hash,pid_cmp);
+ CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
+ if (thread_hash == NULL) return(&fallback);
+ }
+ else
+ CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
+ }
+ else
+ {
+ tmp.pid=pid;
+ ret=(ERR_STATE *)lh_retrieve(thread_hash,(char *)&tmp);
+ CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
+ }
+
+ /* ret == the error state, if NULL, make a new one */
+ if (ret == NULL)
+ {
+ ret=(ERR_STATE *)Malloc(sizeof(ERR_STATE));
+ if (ret == NULL) return(&fallback);
+ ret->pid=pid;
+ ret->top=0;
+ ret->bottom=0;
+ CRYPTO_w_lock(CRYPTO_LOCK_ERR);
+ tmpp=(ERR_STATE *)lh_insert(thread_hash,(char *)ret);
+ CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
+ if (tmpp != NULL) /* old entry - should not happen */
+ Free(tmpp);
+ }
+ return(ret);
+ }
+
