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[openssl.git] / crypto / err / err.c
index 6eec77a1545052dd54c84ed2619baf1b26105567..34320b375a92ba7facf86e5db6af2865ab93ac4a 100644 (file)
@@ -1,5 +1,5 @@
 /* crypto/err/err.c */
-/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
  * This package is an SSL implementation written
  */
 
 #include <stdio.h>
-#include "lhash.h"
-#include "crypto.h"
+#include <openssl/lhash.h>
+#include <openssl/crypto.h>
 #include "cryptlib.h"
-#include "buffer.h"
-#include "err.h"
-#include "crypto.h"
+#include <openssl/buffer.h>
+#include <openssl/err.h>
+#include <openssl/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
-
+static unsigned long get_error_values(int inc,const char **file,int *line,
+                                     const char **data,int *flags);
+static void ERR_STATE_free(ERR_STATE *s);
 #ifndef NO_ERR
 static ERR_STRING_DATA ERR_str_libraries[]=
        {
@@ -102,6 +97,8 @@ static ERR_STRING_DATA ERR_str_libraries[]=
 {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"},
+{ERR_PACK(ERR_LIB_X509V3,0,0)          ,"X509 V3 routines"},
+{ERR_PACK(ERR_LIB_PKCS12,0,0)          ,"PKCS12 routines"},
 {0,NULL},
        };
 
@@ -141,13 +138,45 @@ static ERR_STRING_DATA ERR_str_reasons[]=
 {ERR_R_PROXY_LIB                       ,"PROXY lib"},
 {ERR_R_BIO_LIB                         ,"BIO lib"},
 {ERR_R_PKCS7_LIB                       ,"PKCS7 lib"},
+{ERR_R_PKCS12_LIB                      ,"PKCS12 lib"},
 {ERR_R_MALLOC_FAILURE                  ,"Malloc failure"},
 {ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED     ,"called a fuction you should not call"},
+{ERR_R_PASSED_NULL_PARAMETER           ,"passed a null parameter"},
+{ERR_R_NESTED_ASN1_ERROR               ,"nested asn1 error"},
+{ERR_R_BAD_ASN1_OBJECT_HEADER          ,"bad asn1 object header"},
+{ERR_R_BAD_GET_ASN1_OBJECT_CALL                ,"bad get asn1 object call"},
+{ERR_R_EXPECTING_AN_ASN1_SEQUENCE      ,"expecting an asn1 sequence"},
+{ERR_R_ASN1_LENGTH_MISMATCH            ,"asn1 length mismatch"},
+{ERR_R_MISSING_ASN1_EOS                        ,"missing asn1 eos"},
+
 {0,NULL},
        };
 #endif
 
-void ERR_load_ERR_strings()
+#define err_clear_data(p,i) \
+       if (((p)->err_data[i] != NULL) && \
+               (p)->err_data_flags[i] & ERR_TXT_MALLOCED) \
+               {  \
+               Free((p)->err_data[i]); \
+               (p)->err_data[i]=NULL; \
+               } \
+       (p)->err_data_flags[i]=0;
+
+static void ERR_STATE_free(ERR_STATE *s)
+       {
+       int i;
+
+       if(s == NULL)
+           return;
+
+       for (i=0; i<ERR_NUM_ERRORS; i++)
+               {
+               err_clear_data(s,i);
+               }
+       Free(s);
+       }
+
+void ERR_load_ERR_strings(void)
        {
        static int init=1;
 
@@ -170,9 +199,7 @@ void ERR_load_ERR_strings()
                }
        }
 
-void ERR_load_strings(lib,str)
-int lib;
-ERR_STRING_DATA *str;
+void ERR_load_strings(int lib, ERR_STRING_DATA *str)
        {
        if (error_hash == NULL)
                {
@@ -198,7 +225,7 @@ ERR_STRING_DATA *str;
        CRYPTO_w_unlock(CRYPTO_LOCK_ERR_HASH);
        }
 
-void ERR_free_strings()
+void ERR_free_strings(void)
        {
        CRYPTO_w_lock(CRYPTO_LOCK_ERR);
 
@@ -211,10 +238,10 @@ void ERR_free_strings()
        CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
        }
 
-void ERR_put_error(lib,func,reason,file,line)
-int lib,func,reason;
-char *file;
-int line;
+/********************************************************/
+
+void ERR_put_error(int lib, int func, int reason, const char *file,
+            int line)
        {
        ERR_STATE *es;
 
@@ -226,127 +253,107 @@ int line;
        es->err_buffer[es->top]=ERR_PACK(lib,func,reason);
        es->err_file[es->top]=file;
        es->err_line[es->top]=line;
+       err_clear_data(es,es->top);
        }
 
-void ERR_clear_error()
+void ERR_clear_error(void)
        {
-       int i;
        ERR_STATE *es;
 
        es=ERR_get_state();
 
+#if 0
+       /* hmm... is this needed */
        for (i=0; i<ERR_NUM_ERRORS; i++)
                {
                es->err_buffer[i]=0;
                es->err_file[i]=NULL;
                es->err_line[i]= -1;
+               err_clear_data(es,i);
                }
+#endif
        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();
+unsigned long ERR_get_error(void)
+       { return(get_error_values(1,NULL,NULL,NULL,NULL)); }
 
-       if (es->bottom == es->top) return(0);
-       i=(es->bottom+1)%ERR_NUM_ERRORS;
+unsigned long ERR_get_error_line(const char **file,
+            int *line)
+       { return(get_error_values(1,file,line,NULL,NULL)); }
 
+unsigned long ERR_get_error_line_data(const char **file, int *line,
+            const char **data, int *flags)
+       { return(get_error_values(1,file,line,
+            data,flags)); }
 
-       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;
+unsigned long ERR_peek_error(void)
+       { return(get_error_values(0,NULL,NULL,NULL,NULL)); }
 
+unsigned long ERR_peek_error_line(const char **file,
+            int *line)
+       { return(get_error_values(0,file,line,NULL,NULL)); }
 
-       return(ret);
-       }
+unsigned long ERR_peek_error_line_data(const char **file, int *line,
+            const char **data, int *flags)
+       { return(get_error_values(0,file,line,
+            data,flags)); }
 
-unsigned long ERR_peek_error_line(file,line)
-char **file;
-int *line;
+static unsigned long get_error_values(int inc, const char **file, int *line,
+            const char **data, int *flags)
        {       
        int i=0;
        ERR_STATE *es;
+       unsigned long ret;
 
        es=ERR_get_state();
 
-       if (es->bottom == es->top)
-               {
-               return(0);
-               }
-
+       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
+
+       ret=es->err_buffer[i];
+       if (inc)
                {
-               *file=es->err_file[i];
-               *line=es->err_line[i];
+               es->bottom=i;
+               es->err_buffer[i]=0;
                }
 
-       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)
+       if ((file != NULL) && (line != NULL))
                {
-               *file="NA";
-               *line=0;
+               if (es->err_file[i] == NULL)
+                       {
+                       *file="NA";
+                       if (line != NULL) *line=0;
+                       }
+               else
+                       {
+                       *file=es->err_file[i];
+                       if (line != NULL) *line=es->err_line[i];
+                       }
                }
-       else
+
+       if (data != NULL)
                {
-               *file=es->err_file[i];
-               *line=es->err_line[i];
+               if (es->err_data[i] == NULL)
+                       {
+                       *data="";
+                       if (flags != NULL) *flags=0;
+                       }
+               else
+                       {
+                       *data=es->err_data[i];
+                       if (flags != NULL) *flags=es->err_data_flags[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;
+char *ERR_error_string(unsigned long e, char *ret)
        {
        static char buf[256];
-       char *ls,*fs,*rs;
+       const char *ls,*fs,*rs;
        unsigned long l,f,r;
        int i;
 
@@ -377,18 +384,17 @@ char *ret;
        return(ret);
        }
 
-LHASH *ERR_get_string_table()
+LHASH *ERR_get_string_table(void)
        {
        return(error_hash);
        }
 
-LHASH *ERR_get_err_state_table()
+LHASH *ERR_get_err_state_table(void)
        {
        return(thread_hash);
        }
 
-char *ERR_lib_error_string(e)
-unsigned long e;
+const char *ERR_lib_error_string(unsigned long e)
        {
        ERR_STRING_DATA d,*p=NULL;
        unsigned long l;
@@ -408,8 +414,7 @@ unsigned long e;
        return((p == NULL)?NULL:p->string);
        }
 
-char *ERR_func_error_string(e)
-unsigned long e;
+const char *ERR_func_error_string(unsigned long e)
        {
        ERR_STRING_DATA d,*p=NULL;
        unsigned long l,f;
@@ -430,8 +435,7 @@ unsigned long e;
        return((p == NULL)?NULL:p->string);
        }
 
-char *ERR_reason_error_string(e)
-unsigned long e;
+const char *ERR_reason_error_string(unsigned long e)
        {
        ERR_STRING_DATA d,*p=NULL;
        unsigned long l,r;
@@ -458,8 +462,7 @@ unsigned long e;
        return((p == NULL)?NULL:p->string);
        }
 
-static unsigned long err_hash(a)
-ERR_STRING_DATA *a;
+static unsigned long err_hash(ERR_STRING_DATA *a)
        {
        unsigned long ret,l;
 
@@ -468,26 +471,22 @@ ERR_STRING_DATA *a;
        return(ret^ret%19*13);
        }
 
-static int err_cmp(a,b)
-ERR_STRING_DATA *a,*b;
+static int err_cmp(ERR_STRING_DATA *a, ERR_STRING_DATA *b)
        {
        return((int)(a->error-b->error));
        }
 
-static unsigned long pid_hash(a)
-ERR_STATE *a;
+static unsigned long pid_hash(ERR_STATE *a)
        {
        return(a->pid*13);
        }
 
-static int pid_cmp(a,b)
-ERR_STATE *a,*b;
+static int pid_cmp(ERR_STATE *a, ERR_STATE *b)
        {
        return((int)((long)a->pid - (long)b->pid));
        }
 
-void ERR_remove_state(pid)
-unsigned long pid;
+void ERR_remove_state(unsigned long pid)
        {
        ERR_STATE *p,tmp;
 
@@ -498,14 +497,16 @@ unsigned long pid;
        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);
+
+       if (p != NULL) ERR_STATE_free(p);
        }
 
-ERR_STATE *ERR_get_state()
+ERR_STATE *ERR_get_state(void)
        {
        static ERR_STATE fallback;
        ERR_STATE *ret=NULL,tmp,*tmpp;
+       int i;
        unsigned long pid;
 
        pid=(unsigned long)CRYPTO_thread_id();
@@ -517,7 +518,9 @@ ERR_STATE *ERR_get_state()
                CRYPTO_w_lock(CRYPTO_LOCK_ERR);
                if (thread_hash == NULL)
                        {
+                       MemCheck_off();
                        thread_hash=lh_new(pid_hash,pid_cmp);
+                       MemCheck_on();
                        CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
                        if (thread_hash == NULL) return(&fallback);
                        }
@@ -539,12 +542,82 @@ ERR_STATE *ERR_get_state()
                ret->pid=pid;
                ret->top=0;
                ret->bottom=0;
+               for (i=0; i<ERR_NUM_ERRORS; i++)
+                       {
+                       ret->err_data[i]=NULL;
+                       ret->err_data_flags[i]=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);
+                       {
+                       ERR_STATE_free(tmpp);
+                       }
                }
        return(ret);
        }
 
+int ERR_get_next_error_library(void)
+       {
+       static int value=ERR_LIB_USER;
+
+       return(value++);
+       }
+
+void ERR_set_error_data(char *data, int flags)
+       {
+       ERR_STATE *es;
+       int i;
+
+       es=ERR_get_state();
+
+       i=es->top;
+       if (i == 0)
+               i=ERR_NUM_ERRORS-1;
+
+       es->err_data[i]=data;
+       es->err_data_flags[es->top]=flags;
+       }
+
+void ERR_add_error_data( VAR_PLIST(int , num))
+VAR_ALIST
+        {
+        VAR_BDEFN(args, int, num);
+       int i,n,s;
+       char *str,*p,*a;
+
+       s=64;
+       str=Malloc(s+1);
+       if (str == NULL) return;
+       str[0]='\0';
+
+       VAR_INIT(args,int,num);
+       n=0;
+       for (i=0; i<num; i++)
+               {
+               VAR_ARG(args,char *,a);
+               /* ignore NULLs, thanks to Bob Beck <beck@obtuse.com> */
+               if (a != NULL)
+                       {
+                       n+=strlen(a);
+                       if (n > s)
+                               {
+                               s=n+20;
+                               p=Realloc(str,s+1);
+                               if (p == NULL)
+                                       {
+                                       Free(str);
+                                       return;
+                                       }
+                               else
+                                       str=p;
+                               }
+                       strcat(str,a);
+                       }
+               }
+       ERR_set_error_data(str,ERR_TXT_MALLOCED|ERR_TXT_STRING);
+
+       VAR_END( args );
+       }
+