/* crypto/bio/bf_buff.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 <errno.h>
#include "cryptlib.h"
-#include "bio.h"
-#include "evp.h"
-
-#ifndef NOPROTO
-static int buffer_write(BIO *h,char *buf,int num);
-static int buffer_read(BIO *h,char *buf,int size);
-static int buffer_puts(BIO *h,char *str);
-static int buffer_gets(BIO *h,char *str,int size);
-static long buffer_ctrl(BIO *h,int cmd,long arg1,char *arg2);
+#include <openssl/bio.h>
+
+static int buffer_write(BIO *h, const char *buf,int num);
+static int buffer_read(BIO *h, char *buf, int size);
+static int buffer_puts(BIO *h, const char *str);
+static int buffer_gets(BIO *h, char *str, int size);
+static long buffer_ctrl(BIO *h, int cmd, long arg1, void *arg2);
static int buffer_new(BIO *h);
static int buffer_free(BIO *data);
-#else
-static int buffer_write();
-static int buffer_read();
-static int buffer_puts();
-static int buffer_gets();
-static long buffer_ctrl();
-static int buffer_new();
-static int buffer_free();
-#endif
-
-#define DEFAULT_BUFFER_SIZE 1024
+static long buffer_callback_ctrl(BIO *h, int cmd, bio_info_cb *fp);
+#define DEFAULT_BUFFER_SIZE 4096
static BIO_METHOD methods_buffer=
{
- BIO_TYPE_BUFFER,"buffer",
+ BIO_TYPE_BUFFER,
+ "buffer",
buffer_write,
buffer_read,
buffer_puts,
buffer_ctrl,
buffer_new,
buffer_free,
+ buffer_callback_ctrl,
};
-BIO_METHOD *BIO_f_buffer()
+BIO_METHOD *BIO_f_buffer(void)
{
return(&methods_buffer);
}
-static int buffer_new(bi)
-BIO *bi;
+static int buffer_new(BIO *bi)
{
BIO_F_BUFFER_CTX *ctx;
- ctx=(BIO_F_BUFFER_CTX *)Malloc(sizeof(BIO_F_BUFFER_CTX));
+ ctx=(BIO_F_BUFFER_CTX *)OPENSSL_malloc(sizeof(BIO_F_BUFFER_CTX));
if (ctx == NULL) return(0);
- ctx->ibuf=(char *)Malloc(DEFAULT_BUFFER_SIZE);
- if (ctx->ibuf == NULL) { Free(ctx); return(0); }
- ctx->obuf=(char *)Malloc(DEFAULT_BUFFER_SIZE);
- if (ctx->obuf == NULL) { Free(ctx->ibuf); Free(ctx); return(0); }
+ ctx->ibuf=(char *)OPENSSL_malloc(DEFAULT_BUFFER_SIZE);
+ if (ctx->ibuf == NULL) { OPENSSL_free(ctx); return(0); }
+ ctx->obuf=(char *)OPENSSL_malloc(DEFAULT_BUFFER_SIZE);
+ if (ctx->obuf == NULL) { OPENSSL_free(ctx->ibuf); OPENSSL_free(ctx); return(0); }
ctx->ibuf_size=DEFAULT_BUFFER_SIZE;
ctx->obuf_size=DEFAULT_BUFFER_SIZE;
ctx->ibuf_len=0;
return(1);
}
-static int buffer_free(a)
-BIO *a;
+static int buffer_free(BIO *a)
{
BIO_F_BUFFER_CTX *b;
if (a == NULL) return(0);
b=(BIO_F_BUFFER_CTX *)a->ptr;
- if (b->ibuf != NULL) Free(b->ibuf);
- if (b->obuf != NULL) Free(b->obuf);
- Free(a->ptr);
+ if (b->ibuf != NULL) OPENSSL_free(b->ibuf);
+ if (b->obuf != NULL) OPENSSL_free(b->obuf);
+ OPENSSL_free(a->ptr);
a->ptr=NULL;
a->init=0;
a->flags=0;
return(1);
}
-static int buffer_read(b,out,outl)
-BIO *b;
-char *out;
-int outl;
+static int buffer_read(BIO *b, char *out, int outl)
{
int i,num=0;
BIO_F_BUFFER_CTX *ctx;
goto start;
}
-static int buffer_write(b,in,inl)
-BIO *b;
-char *in;
-int inl;
+static int buffer_write(BIO *b, const char *in, int inl)
{
int i,num=0;
BIO_F_BUFFER_CTX *ctx;
/* add to buffer and return */
if (i >= inl)
{
- memcpy(&(ctx->obuf[ctx->obuf_len]),in,inl);
+ memcpy(&(ctx->obuf[ctx->obuf_off+ctx->obuf_len]),in,inl);
ctx->obuf_len+=inl;
return(num+inl);
}
{
if (i > 0) /* lets fill it up if we can */
{
- memcpy(&(ctx->obuf[ctx->obuf_len]),in,i);
+ memcpy(&(ctx->obuf[ctx->obuf_off+ctx->obuf_len]),in,i);
in+=i;
inl-=i;
num+=i;
goto start;
}
-static long buffer_ctrl(b,cmd,num,ptr)
-BIO *b;
-int cmd;
-long num;
-char *ptr;
+static long buffer_ctrl(BIO *b, int cmd, long num, void *ptr)
{
BIO *dbio;
BIO_F_BUFFER_CTX *ctx;
ctx->ibuf_len=0;
ctx->obuf_off=0;
ctx->obuf_len=0;
+ if (b->next_bio == NULL) return(0);
ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
break;
case BIO_CTRL_INFO:
case BIO_C_GET_BUFF_NUM_LINES:
ret=0;
p1=ctx->ibuf;
- for (i=ctx->ibuf_off; i<ctx->ibuf_len; i++)
+ for (i=0; i<ctx->ibuf_len; i++)
{
- if (p1[i] == '\n') ret++;
+ if (p1[ctx->ibuf_off + i] == '\n') ret++;
}
break;
case BIO_CTRL_WPENDING:
ret=(long)ctx->obuf_len;
if (ret == 0)
+ {
+ if (b->next_bio == NULL) return(0);
ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
+ }
break;
case BIO_CTRL_PENDING:
ret=(long)ctx->ibuf_len;
if (ret == 0)
+ {
+ if (b->next_bio == NULL) return(0);
ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
+ }
+ break;
+ case BIO_C_SET_BUFF_READ_DATA:
+ if (num > ctx->ibuf_size)
+ {
+ p1=OPENSSL_malloc((int)num);
+ if (p1 == NULL) goto malloc_error;
+ if (ctx->ibuf != NULL) OPENSSL_free(ctx->ibuf);
+ ctx->ibuf=p1;
+ }
+ ctx->ibuf_off=0;
+ ctx->ibuf_len=(int)num;
+ memcpy(ctx->ibuf,ptr,(int)num);
+ ret=1;
break;
case BIO_C_SET_BUFF_SIZE:
if (ptr != NULL)
p2=ctx->obuf;
if ((ibs > DEFAULT_BUFFER_SIZE) && (ibs != ctx->ibuf_size))
{
- p1=(char *)Malloc((int)num);
- if (p1 == NULL) { ret=0; break; }
+ p1=(char *)OPENSSL_malloc((int)num);
+ if (p1 == NULL) goto malloc_error;
}
if ((obs > DEFAULT_BUFFER_SIZE) && (obs != ctx->obuf_size))
{
- p2=(char *)Malloc((int)num);
+ p2=(char *)OPENSSL_malloc((int)num);
if (p2 == NULL)
{
- ret=0;
- if (p1 != ctx->ibuf) Free(p1);
- break;
+ if (p1 != ctx->ibuf) OPENSSL_free(p1);
+ goto malloc_error;
}
}
if (ctx->ibuf != p1)
{
- Free(ctx->ibuf);
+ OPENSSL_free(ctx->ibuf);
ctx->ibuf=p1;
ctx->ibuf_off=0;
ctx->ibuf_len=0;
}
if (ctx->obuf != p2)
{
- Free(ctx->obuf);
+ OPENSSL_free(ctx->obuf);
ctx->obuf=p2;
ctx->obuf_off=0;
ctx->obuf_len=0;
}
break;
case BIO_C_DO_STATE_MACHINE:
+ if (b->next_bio == NULL) return(0);
BIO_clear_retry_flags(b);
ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
BIO_copy_next_retry(b);
break;
case BIO_CTRL_FLUSH:
+ if (b->next_bio == NULL) return(0);
if (ctx->obuf_len <= 0)
+ {
+ ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
break;
+ }
for (;;)
{
BIO_clear_retry_flags(b);
- if (ctx->obuf_len > ctx->obuf_off)
+ if (ctx->obuf_len > 0)
{
r=BIO_write(b->next_bio,
&(ctx->obuf[ctx->obuf_off]),
- ctx->obuf_len-ctx->obuf_off);
+ ctx->obuf_len);
#if 0
-fprintf(stderr,"FLUSH [%3d] %3d -> %3d\n",ctx->obuf_off,ctx->obuf_len-ctx->obuf_off,r);
+fprintf(stderr,"FLUSH [%3d] %3d -> %3d\n",ctx->obuf_off,ctx->obuf_len,r);
#endif
BIO_copy_next_retry(b);
if (r <= 0) return((long)r);
ctx->obuf_off+=r;
+ ctx->obuf_len-=r;
}
else
{
break;
}
}
+ ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
break;
case BIO_CTRL_DUP:
dbio=(BIO *)ptr;
ret=0;
break;
default:
+ if (b->next_bio == NULL) return(0);
ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
break;
}
return(ret);
+malloc_error:
+ BIOerr(BIO_F_BUFFER_CTRL,ERR_R_MALLOC_FAILURE);
+ return(0);
+ }
+
+static long buffer_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)
+ {
+ long ret=1;
+
+ if (b->next_bio == NULL) return(0);
+ switch (cmd)
+ {
+ default:
+ ret=BIO_callback_ctrl(b->next_bio,cmd,fp);
+ break;
+ }
+ return(ret);
}
-static int buffer_gets(b,buf,size)
-BIO *b;
-char *buf;
-int size;
+static int buffer_gets(BIO *b, char *buf, int size)
{
BIO_F_BUFFER_CTX *ctx;
- int num=0,i;
+ int num=0,i,flag;
char *p;
ctx=(BIO_F_BUFFER_CTX *)b->ptr;
- size--;
+ size--; /* reserve space for a '\0' */
BIO_clear_retry_flags(b);
for (;;)
{
- if (ctx->ibuf_len != 0)
+ if (ctx->ibuf_len > 0)
{
p= &(ctx->ibuf[ctx->ibuf_off]);
- for (i=0; (i<ctx->ibuf_len) && (i<(size-1)); i++)
+ flag=0;
+ for (i=0; (i<ctx->ibuf_len) && (i<size); i++)
{
*(buf++)=p[i];
- if (p[i] == '\n') break;
+ if (p[i] == '\n')
+ {
+ flag=1;
+ i++;
+ break;
+ }
}
num+=i;
size-=i;
ctx->ibuf_len-=i;
ctx->ibuf_off+=i;
- if (p[i] == '\n')
+ if (flag || size == 0)
{
- buf[i+1]='\0';
- ctx->ibuf_len--;
- ctx->ibuf_off++;
+ *buf='\0';
return(num);
}
}
if (i <= 0)
{
BIO_copy_next_retry(b);
+ *buf='\0';
if (i < 0) return((num > 0)?num:i);
if (i == 0) return(num);
}
}
}
-static int buffer_puts(b,str)
-BIO *b;
-char *str;
+static int buffer_puts(BIO *b, const char *str)
{
- return(BIO_write(b,str,strlen(str)));
+ return(buffer_write(b,str,strlen(str)));
}