#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <openssl/lhash.h>
#include <openssl/crypto.h>
#include "cryptlib.h"
#include <openssl/buffer.h>
#include <openssl/bio.h>
#include <openssl/err.h>
static void err_load_strings(int lib, ERR_STRING_DATA *str);
static void ERR_STATE_free(ERR_STATE *s);
#ifndef OPENSSL_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_OBJ,0,0) ,"object identifier routines"},
{ERR_PACK(ERR_LIB_PEM,0,0) ,"PEM routines"},
{ERR_PACK(ERR_LIB_DSA,0,0) ,"dsa routines"},
{ERR_PACK(ERR_LIB_X509,0,0) ,"x509 certificate routines"},
{ERR_PACK(ERR_LIB_ASN1,0,0) ,"asn1 encoding routines"},
{ERR_PACK(ERR_LIB_CONF,0,0) ,"configuration file routines"},
{ERR_PACK(ERR_LIB_CRYPTO,0,0) ,"common libcrypto routines"},
{ERR_PACK(ERR_LIB_EC,0,0) ,"elliptic curve routines"},
{ERR_PACK(ERR_LIB_SSL,0,0) ,"SSL 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"},
{ERR_PACK(ERR_LIB_RAND,0,0) ,"random number generator"},
{ERR_PACK(ERR_LIB_DSO,0,0) ,"DSO support routines"},
{ERR_PACK(ERR_LIB_ENGINE,0,0) ,"engine routines"},
{ERR_PACK(ERR_LIB_OCSP,0,0) ,"OCSP 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 OPENSSL_SYS_WINDOWS
{ERR_PACK(0,SYS_F_WSASTARTUP,0), "WSAstartup"},
#endif
{ERR_PACK(0,SYS_F_OPENDIR,0), "opendir"},
{ERR_PACK(0,SYS_F_FREAD,0), "fread"},
{0,NULL},
};
static ERR_STRING_DATA ERR_str_reasons[]=
{
{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_OBJ_LIB ,"OBJ lib"},
{ERR_R_PEM_LIB ,"PEM lib"},
{ERR_R_DSA_LIB ,"DSA lib"},
{ERR_R_X509_LIB ,"X509 lib"},
{ERR_R_ASN1_LIB ,"ASN1 lib"},
{ERR_R_CONF_LIB ,"CONF lib"},
{ERR_R_CRYPTO_LIB ,"CRYPTO lib"},
{ERR_R_EC_LIB ,"EC lib"},
{ERR_R_SSL_LIB ,"SSL lib"},
{ERR_R_BIO_LIB ,"BIO lib"},
{ERR_R_PKCS7_LIB ,"PKCS7 lib"},
{ERR_R_X509V3_LIB ,"X509V3 lib"},
{ERR_R_PKCS12_LIB ,"PKCS12 lib"},
{ERR_R_RAND_LIB ,"RAND lib"},
{ERR_R_DSO_LIB ,"DSO lib"},
{ERR_R_ENGINE_LIB ,"ENGINE lib"},
{ERR_R_OCSP_LIB ,"OCSP lib"},
{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"},
{ERR_R_FATAL ,"fatal"},
{ERR_R_MALLOC_FAILURE ,"malloc failure"},
{ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED ,"called a function you should not call"},
{ERR_R_PASSED_NULL_PARAMETER ,"passed a null parameter"},
{ERR_R_INTERNAL_ERROR ,"internal error"},
{0,NULL},
};
#endif
struct st_ERR_FNS
{
LHASH *(*cb_err_get)(int create);
void (*cb_err_del)(void);
ERR_STRING_DATA *(*cb_err_get_item)(const ERR_STRING_DATA *);
ERR_STRING_DATA *(*cb_err_set_item)(ERR_STRING_DATA *);
ERR_STRING_DATA *(*cb_err_del_item)(ERR_STRING_DATA *);
LHASH *(*cb_thread_get)(int create);
ERR_STATE *(*cb_thread_get_item)(const ERR_STATE *);
ERR_STATE *(*cb_thread_set_item)(ERR_STATE *);
void (*cb_thread_del_item)(const ERR_STATE *);
int (*cb_get_next_lib)(void);
};
static LHASH *int_err_get(int create);
static void int_err_del(void);
static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *);
static ERR_STRING_DATA *int_err_set_item(ERR_STRING_DATA *);
static ERR_STRING_DATA *int_err_del_item(ERR_STRING_DATA *);
static LHASH *int_thread_get(int create);
static ERR_STATE *int_thread_get_item(const ERR_STATE *);
static ERR_STATE *int_thread_set_item(ERR_STATE *);
static void int_thread_del_item(const ERR_STATE *);
static int int_err_get_next_lib(void);
static const ERR_FNS err_defaults =
{
int_err_get,
int_err_del,
int_err_get_item,
int_err_set_item,
int_err_del_item,
int_thread_get,
int_thread_get_item,
int_thread_set_item,
int_thread_del_item,
int_err_get_next_lib
};
static const ERR_FNS *err_fns = NULL;
#define ERRFN(a) err_fns->cb_##a
static LHASH *int_error_hash = NULL;
static LHASH *int_thread_hash = NULL;
static int int_err_library_number= ERR_LIB_USER;
static void err_fns_check(void)
{
if (err_fns) return;
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
if (!err_fns)
err_fns = &err_defaults;
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
}
const ERR_FNS *ERR_get_implementation(void)
{
err_fns_check();
return err_fns;
}
int ERR_set_implementation(const ERR_FNS *fns)
{
int ret = 0;
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
if (!err_fns)
{
err_fns = fns;
ret = 1;
}
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
return ret;
}
static unsigned long err_hash(const void *a_void);
static int err_cmp(const void *a_void, const void *b_void);
static unsigned long pid_hash(const void *pid_void);
static int pid_cmp(const void *a_void,const void *pid_void);
static unsigned long get_error_values(int inc,int top,const char **file,int *line,
const char **data,int *flags);
static LHASH *int_err_get(int create)
{
LHASH *ret = NULL;
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
if (!int_error_hash && create)
{
CRYPTO_push_info("int_err_get (err.c)");
int_error_hash = lh_new(err_hash, err_cmp);
CRYPTO_pop_info();
}
if (int_error_hash)
ret = int_error_hash;
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
return ret;
}
static void int_err_del(void)
{
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
if (int_error_hash)
{
lh_free(int_error_hash);
int_error_hash = NULL;
}
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
}
static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *d)
{
ERR_STRING_DATA *p;
LHASH *hash;
err_fns_check();
hash = ERRFN(err_get)(0);
if (!hash)
return NULL;
CRYPTO_r_lock(CRYPTO_LOCK_ERR);
p = (ERR_STRING_DATA *)lh_retrieve(hash, d);
CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
return p;
}
static ERR_STRING_DATA *int_err_set_item(ERR_STRING_DATA *d)
{
ERR_STRING_DATA *p;
LHASH *hash;
err_fns_check();
hash = ERRFN(err_get)(1);
if (!hash)
return NULL;
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
p = (ERR_STRING_DATA *)lh_insert(hash, d);
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
return p;
}
static ERR_STRING_DATA *int_err_del_item(ERR_STRING_DATA *d)
{
ERR_STRING_DATA *p;
LHASH *hash;
err_fns_check();
hash = ERRFN(err_get)(0);
if (!hash)
return NULL;
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
p = (ERR_STRING_DATA *)lh_delete(hash, d);
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
return p;
}
static LHASH *int_thread_get(int create)
{
LHASH *ret = NULL;
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
if (!int_thread_hash && create)
{
CRYPTO_push_info("int_thread_get (err.c)");
int_thread_hash = lh_new(pid_hash, pid_cmp);
CRYPTO_pop_info();
}
if (int_thread_hash)
ret = int_thread_hash;
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
return ret;
}
static ERR_STATE *int_thread_get_item(const ERR_STATE *d)
{
ERR_STATE *p;
LHASH *hash;
err_fns_check();
hash = ERRFN(thread_get)(0);
if (!hash)
return NULL;
CRYPTO_r_lock(CRYPTO_LOCK_ERR);
p = (ERR_STATE *)lh_retrieve(hash, d);
CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
return p;
}
static ERR_STATE *int_thread_set_item(ERR_STATE *d)
{
ERR_STATE *p;
LHASH *hash;
err_fns_check();
hash = ERRFN(thread_get)(1);
if (!hash)
return NULL;
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
p = (ERR_STATE *)lh_insert(hash, d);
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
return p;
}
static void int_thread_del_item(const ERR_STATE *d)
{
ERR_STATE *p;
LHASH *hash;
err_fns_check();
hash = ERRFN(thread_get)(0);
if (!hash)
return;
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
p = (ERR_STATE *)lh_delete(hash, d);
if (int_thread_hash && (lh_num_items(int_thread_hash) == 0))
{
lh_free(int_thread_hash);
int_thread_hash = NULL;
}
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
if (p)
ERR_STATE_free(p);
}
static int int_err_get_next_lib(void)
{
int ret;
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
ret = int_err_library_number++;
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
return ret;
}
#ifndef OPENSSL_NO_ERR
#define NUM_SYS_STR_REASONS 127
#define LEN_SYS_STR_REASON 32
static ERR_STRING_DATA SYS_str_reasons[NUM_SYS_STR_REASONS + 1];
static void build_SYS_str_reasons()
{
static char strerror_tab[NUM_SYS_STR_REASONS][LEN_SYS_STR_REASON];
int i;
static int init = 1;
if (!init) return;
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
for (i = 1; i <= NUM_SYS_STR_REASONS; i++)
{
ERR_STRING_DATA *str = &SYS_str_reasons[i - 1];
str->error = (unsigned long)i;
if (str->string == NULL)
{
char (*dest)[LEN_SYS_STR_REASON] = &(strerror_tab[i - 1]);
char *src = strerror(i);
if (src != NULL)
{
strncpy(*dest, src, sizeof *dest);
(*dest)[sizeof *dest - 1] = '\0';
str->string = *dest;
}
}
if (str->string == NULL)
str->string = "unknown";
}
init = 0;
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
}
#endif
#define err_clear_data(p,i) \
if (((p)->err_data[i] != NULL) && \
(p)->err_data_flags[i] & ERR_TXT_MALLOCED) \
{ \
OPENSSL_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);
}
OPENSSL_free(s);
}
void ERR_load_ERR_strings(void)
{
err_fns_check();
#ifndef OPENSSL_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);
build_SYS_str_reasons();
err_load_strings(ERR_LIB_SYS,SYS_str_reasons);
#endif
}
static void err_load_strings(int lib, ERR_STRING_DATA *str)
{
while (str->error)
{
str->error|=ERR_PACK(lib,0,0);
ERRFN(err_set_item)(str);
str++;
}
}
void ERR_load_strings(int lib, ERR_STRING_DATA *str)
{
ERR_load_ERR_strings();
err_load_strings(lib, str);
}
void ERR_unload_strings(int lib, ERR_STRING_DATA *str)
{
while (str->error)
{
str->error|=ERR_PACK(lib,0,0);
ERRFN(err_del_item)(str);
str++;
}
}
void ERR_free_strings(void)
{
err_fns_check();
ERRFN(err_del)();
}
void ERR_put_error(int lib, int func, int reason, const char *file,
int line)
{
ERR_STATE *es;
#ifdef _OSD_POSIX
if (strncmp(file,"*POSIX(", sizeof("*POSIX(")-1) == 0) {
char *end;
file += sizeof("*POSIX(")-1;
end = &file[strlen(file)-1];
if (*end == ')')
*end = '\0';
if ((end = strrchr(file, '/')) != NULL)
file = &end[1];
}
#endif
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;
err_clear_data(es,es->top);
}
void ERR_clear_error(void)
{
int i;
ERR_STATE *es;
es=ERR_get_state();
for (i=0; i<ERR_NUM_ERRORS; i++)
{
es->err_buffer[i]=0;
err_clear_data(es,i);
es->err_file[i]=NULL;
es->err_line[i]= -1;
}
es->top=es->bottom=0;
}
unsigned long ERR_get_error(void)
{ return(get_error_values(1,0,NULL,NULL,NULL,NULL)); }
unsigned long ERR_get_error_line(const char **file,
int *line)
{ return(get_error_values(1,0,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(1,0,file,line,data,flags)); }
unsigned long ERR_peek_error(void)
{ return(get_error_values(0,0,NULL,NULL,NULL,NULL)); }
unsigned long ERR_peek_error_line(const char **file, int *line)
{ return(get_error_values(0,0,file,line,NULL,NULL)); }
unsigned long ERR_peek_error_line_data(const char **file, int *line,
const char **data, int *flags)
{ return(get_error_values(0,0,file,line,data,flags)); }
unsigned long ERR_peek_last_error(void)
{ return(get_error_values(0,1,NULL,NULL,NULL,NULL)); }
unsigned long ERR_peek_last_error_line(const char **file, int *line)
{ return(get_error_values(0,1,file,line,NULL,NULL)); }
unsigned long ERR_peek_last_error_line_data(const char **file, int *line,
const char **data, int *flags)
{ return(get_error_values(0,1,file,line,data,flags)); }
static unsigned long get_error_values(int inc, int top, const char **file, int *line,
const char **data, int *flags)
{
int i=0;
ERR_STATE *es;
unsigned long ret;
es=ERR_get_state();
if (inc && top)
{
if (file) *file = "";
if (line) *line = 0;
if (data) *data = "";
if (flags) *flags = 0;
return ERR_R_INTERNAL_ERROR;
}
if (es->bottom == es->top) return 0;
if (top)
i=es->top;
else
i=(es->bottom+1)%ERR_NUM_ERRORS;
ret=es->err_buffer[i];
if (inc)
{
es->bottom=i;
es->err_buffer[i]=0;
}
if ((file != NULL) && (line != NULL))
{
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];
}
}
if (data == NULL)
{
if (inc)
{
err_clear_data(es, i);
}
}
else
{
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];
}
}
return ret;
}
void ERR_error_string_n(unsigned long e, char *buf, size_t len)
{
char lsbuf[64], fsbuf[64], rsbuf[64];
const char *ls,*fs,*rs;
unsigned long l,f,r;
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 (ls == NULL)
BIO_snprintf(lsbuf, sizeof(lsbuf), "lib(%lu)", l);
if (fs == NULL)
BIO_snprintf(fsbuf, sizeof(fsbuf), "func(%lu)", f);
if (rs == NULL)
BIO_snprintf(rsbuf, sizeof(rsbuf), "reason(%lu)", r);
BIO_snprintf(buf, len,"error:%08lX:%s:%s:%s", e, ls?ls:lsbuf,
fs?fs:fsbuf, rs?rs:rsbuf);
if (strlen(buf) == len-1)
{
#define NUM_COLONS 4
if (len > NUM_COLONS)
{
int i;
char *s = buf;
for (i = 0; i < NUM_COLONS; i++)
{
char *colon = strchr(s, ':');
if (colon == NULL || colon > &buf[len-1] - NUM_COLONS + i)
{
colon = &buf[len-1] - NUM_COLONS + i;
*colon = ':';
}
s = colon + 1;
}
}
}
}
char *ERR_error_string(unsigned long e, char *ret)
{
static char buf[256];
if (ret == NULL) ret=buf;
ERR_error_string_n(e, ret, 256);
return ret;
}
LHASH *ERR_get_string_table(void)
{
err_fns_check();
return ERRFN(err_get)(0);
}
LHASH *ERR_get_err_state_table(void)
{
err_fns_check();
return ERRFN(thread_get)(0);
}
const char *ERR_lib_error_string(unsigned long e)
{
ERR_STRING_DATA d,*p;
unsigned long l;
err_fns_check();
l=ERR_GET_LIB(e);
d.error=ERR_PACK(l,0,0);
p=ERRFN(err_get_item)(&d);
return((p == NULL)?NULL:p->string);
}
const char *ERR_func_error_string(unsigned long e)
{
ERR_STRING_DATA d,*p;
unsigned long l,f;
err_fns_check();
l=ERR_GET_LIB(e);
f=ERR_GET_FUNC(e);
d.error=ERR_PACK(l,f,0);
p=ERRFN(err_get_item)(&d);
return((p == NULL)?NULL:p->string);
}
const char *ERR_reason_error_string(unsigned long e)
{
ERR_STRING_DATA d,*p=NULL;
unsigned long l,r;
err_fns_check();
l=ERR_GET_LIB(e);
r=ERR_GET_REASON(e);
d.error=ERR_PACK(l,0,r);
p=ERRFN(err_get_item)(&d);
if (!p)
{
d.error=ERR_PACK(0,0,r);
p=ERRFN(err_get_item)(&d);
}
return((p == NULL)?NULL:p->string);
}
static unsigned long err_hash(const void *a_void)
{
unsigned long ret,l;
l=((ERR_STRING_DATA *)a_void)->error;
ret=l^ERR_GET_LIB(l)^ERR_GET_FUNC(l);
return(ret^ret%19*13);
}
static int err_cmp(const void *a_void, const void *b_void)
{
return((int)(((ERR_STRING_DATA *)a_void)->error -
((ERR_STRING_DATA *)b_void)->error));
}
static unsigned long pid_hash(const void *a_void)
{
return(((ERR_STATE *)a_void)->pid*13);
}
static int pid_cmp(const void *a_void, const void *b_void)
{
return((int)((long)((ERR_STATE *)a_void)->pid -
(long)((ERR_STATE *)b_void)->pid));
}
void ERR_remove_state(unsigned long pid)
{
ERR_STATE tmp;
err_fns_check();
if (pid == 0)
pid=(unsigned long)CRYPTO_thread_id();
tmp.pid=pid;
ERRFN(thread_del_item)(&tmp);
}
ERR_STATE *ERR_get_state(void)
{
static ERR_STATE fallback;
ERR_STATE *ret,tmp,*tmpp=NULL;
int i;
unsigned long pid;
err_fns_check();
pid=(unsigned long)CRYPTO_thread_id();
tmp.pid=pid;
ret=ERRFN(thread_get_item)(&tmp);
if (ret == NULL)
{
ret=(ERR_STATE *)OPENSSL_malloc(sizeof(ERR_STATE));
if (ret == NULL) return(&fallback);
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;
}
tmpp = ERRFN(thread_set_item)(ret);
if (ERRFN(thread_get_item)(ret) != ret)
{
ERR_STATE_free(ret);
return(&fallback);
}
if (tmpp)
ERR_STATE_free(tmpp);
}
return ret;
}
int ERR_get_next_error_library(void)
{
err_fns_check();
return ERRFN(get_next_lib)();
}
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;
err_clear_data(es,i);
es->err_data[i]=data;
es->err_data_flags[i]=flags;
}
void ERR_add_error_data(int num, ...)
{
va_list args;
int i,n,s;
char *str,*p,*a;
s=80;
str=OPENSSL_malloc(s+1);
if (str == NULL) return;
str[0]='\0';
va_start(args, num);
n=0;
for (i=0; i<num; i++)
{
a=va_arg(args, char*);
if (a != NULL)
{
n+=strlen(a);
if (n > s)
{
s=n+20;
p=OPENSSL_realloc(str,s+1);
if (p == NULL)
{
OPENSSL_free(str);
goto err;
}
else
str=p;
}
strcat(str,a);
}
}
ERR_set_error_data(str,ERR_TXT_MALLOCED|ERR_TXT_STRING);
err:
va_end(args);
}