X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=userapps%2Fopensource%2Fopenssl%2Fdemos%2Ftunala%2Fbuffer.c;fp=userapps%2Fopensource%2Fopenssl%2Fdemos%2Ftunala%2Fbuffer.c;h=0000000000000000000000000000000000000000;hb=a2d96664d0ef34bb8bed0eb7c011b47dff43c340;hp=c5cd004209ad9a033781e7ff33612985c1e3674d;hpb=f76ebf3bd5a3980496d0305c613d4623a9b41680;p=bcm963xx.git

diff --git a/userapps/opensource/openssl/demos/tunala/buffer.c b/userapps/opensource/openssl/demos/tunala/buffer.c
deleted file mode 100755
index c5cd0042..00000000
--- a/userapps/opensource/openssl/demos/tunala/buffer.c
+++ /dev/null
@@ -1,205 +0,0 @@
-#include "tunala.h"
-
-#ifndef NO_BUFFER
-
-void buffer_init(buffer_t *buf)
-{
-	buf->used = 0;
-	buf->total_in = buf->total_out = 0;
-}
-
-void buffer_close(buffer_t *buf)
-{
-	/* Our data is static - nothing needs "release", just reset it */
-	buf->used = 0;
-}
-
-/* Code these simple ones in compact form */
-unsigned int buffer_used(buffer_t *buf) {
-	return buf->used; }
-unsigned int buffer_unused(buffer_t *buf) {
-	return (MAX_DATA_SIZE - buf->used); }
-int buffer_full(buffer_t *buf) {
-	return (buf->used == MAX_DATA_SIZE ? 1 : 0); }
-int buffer_notfull(buffer_t *buf) {
-	return (buf->used < MAX_DATA_SIZE ? 1 : 0); }
-int buffer_empty(buffer_t *buf) {
-	return (buf->used == 0 ? 1 : 0); }
-int buffer_notempty(buffer_t *buf) {
-	return (buf->used > 0 ? 1 : 0); }
-unsigned long buffer_total_in(buffer_t *buf) {
-	return buf->total_in; }
-unsigned long buffer_total_out(buffer_t *buf) {
-	return buf->total_out; }
-
-/* These 3 static (internal) functions don't adjust the "total" variables as
- * it's not sure when they're called how it should be interpreted. Only the
- * higher-level "buffer_[to|from]_[fd|SSL|BIO]" functions should alter these
- * values. */
-#if 0 /* To avoid "unused" warnings */
-static unsigned int buffer_adddata(buffer_t *buf, const unsigned char *ptr,
-		unsigned int size)
-{
-	unsigned int added = MAX_DATA_SIZE - buf->used;
-	if(added > size)
-		added = size;
-	if(added == 0)
-		return 0;
-	memcpy(buf->data + buf->used, ptr, added);
-	buf->used += added;
-	buf->total_in += added;
-	return added;
-}
-
-static unsigned int buffer_tobuffer(buffer_t *to, buffer_t *from, int cap)
-{
-	unsigned int moved, tomove = from->used;
-	if((int)tomove > cap)
-		tomove = cap;
-	if(tomove == 0)
-		return 0;
-	moved = buffer_adddata(to, from->data, tomove);
-	if(moved == 0)
-		return 0;
-	buffer_takedata(from, NULL, moved);
-	return moved;
-}
-#endif
-
-static unsigned int buffer_takedata(buffer_t *buf, unsigned char *ptr,
-		unsigned int size)
-{
-	unsigned int taken = buf->used;
-	if(taken > size)
-		taken = size;
-	if(taken == 0)
-		return 0;
-	if(ptr)
-		memcpy(ptr, buf->data, taken);
-	buf->used -= taken;
-	/* Do we have to scroll? */
-	if(buf->used > 0)
-		memmove(buf->data, buf->data + taken, buf->used);
-	return taken;
-}
-
-#ifndef NO_IP
-
-int buffer_from_fd(buffer_t *buf, int fd)
-{
-	int toread = buffer_unused(buf);
-	if(toread == 0)
-		/* Shouldn't be called in this case! */
-		abort();
-	toread = read(fd, buf->data + buf->used, toread);
-	if(toread > 0) {
-		buf->used += toread;
-		buf->total_in += toread;
-	}
-	return toread;
-}
-
-int buffer_to_fd(buffer_t *buf, int fd)
-{
-	int towrite = buffer_used(buf);
-	if(towrite == 0)
-		/* Shouldn't be called in this case! */
-		abort();
-	towrite = write(fd, buf->data, towrite);
-	if(towrite > 0) {
-		buffer_takedata(buf, NULL, towrite);
-		buf->total_out += towrite;
-	}
-	return towrite;
-}
-
-#endif /* !defined(NO_IP) */
-
-#ifndef NO_OPENSSL
-
-static void int_ssl_check(SSL *s, int ret)
-{
-	int e = SSL_get_error(s, ret);
-	switch(e) {
-		/* These seem to be harmless and already "dealt with" by our
-		 * non-blocking environment. NB: "ZERO_RETURN" is the clean
-		 * "error" indicating a successfully closed SSL tunnel. We let
-		 * this happen because our IO loop should not appear to have
-		 * broken on this condition - and outside the IO loop, the
-		 * "shutdown" state is checked. */
-	case SSL_ERROR_NONE:
-	case SSL_ERROR_WANT_READ:
-	case SSL_ERROR_WANT_WRITE:
-	case SSL_ERROR_WANT_X509_LOOKUP:
-	case SSL_ERROR_ZERO_RETURN:
-		return;
-		/* These seem to be indications of a genuine error that should
-		 * result in the SSL tunnel being regarded as "dead". */
-	case SSL_ERROR_SYSCALL:
-	case SSL_ERROR_SSL:
-		SSL_set_app_data(s, (char *)1);
-		return;
-	default:
-		break;
-	}
-	/* For any other errors that (a) exist, and (b) crop up - we need to
-	 * interpret what to do with them - so "politely inform" the caller that
-	 * the code needs updating here. */
-	abort();
-}
-
-void buffer_from_SSL(buffer_t *buf, SSL *ssl)
-{
-	int ret;
-	if(!ssl || buffer_full(buf))
-		return;
-	ret = SSL_read(ssl, buf->data + buf->used, buffer_unused(buf));
-	if(ret > 0) {
-		buf->used += ret;
-		buf->total_in += ret;
-	}
-	if(ret < 0)
-		int_ssl_check(ssl, ret);
-}
-
-void buffer_to_SSL(buffer_t *buf, SSL *ssl)
-{
-	int ret;
-	if(!ssl || buffer_empty(buf))
-		return;
-	ret = SSL_write(ssl, buf->data, buf->used);
-	if(ret > 0) {
-		buffer_takedata(buf, NULL, ret);
-		buf->total_out += ret;
-	}
-	if(ret < 0)
-		int_ssl_check(ssl, ret);
-}
-
-void buffer_from_BIO(buffer_t *buf, BIO *bio)
-{
-	int ret;
-	if(!bio || buffer_full(buf))
-		return;
-	ret = BIO_read(bio, buf->data + buf->used, buffer_unused(buf));
-	if(ret > 0) {
-		buf->used += ret;
-		buf->total_in += ret;
-	}
-}
-
-void buffer_to_BIO(buffer_t *buf, BIO *bio)
-{
-	int ret;
-	if(!bio || buffer_empty(buf))
-		return;
-	ret = BIO_write(bio, buf->data, buf->used);
-	if(ret > 0) {
-		buffer_takedata(buf, NULL, ret);
-		buf->total_out += ret;
-	}
-}
-
-#endif /* !defined(NO_OPENSSL) */
-
-#endif /* !defined(NO_BUFFER) */