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authormarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
committermarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
commit3562e78743202e43aec8727005182a2558117eca (patch)
tree8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /openssl/demos/eay/base64.c
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Diffstat (limited to 'openssl/demos/eay/base64.c')
-rw-r--r--openssl/demos/eay/base64.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/openssl/demos/eay/base64.c b/openssl/demos/eay/base64.c
new file mode 100644
index 000000000..4b8b0627d
--- /dev/null
+++ b/openssl/demos/eay/base64.c
@@ -0,0 +1,49 @@
+/* This is a simple example of using the base64 BIO to a memory BIO and then
+ * getting the data.
+ */
+#include <stdio.h>
+#include <openssl/bio.h>
+#include <openssl/evp.h>
+
+main()
+ {
+ int i;
+ BIO *mbio,*b64bio,*bio;
+ char buf[512];
+ char *p;
+
+ mbio=BIO_new(BIO_s_mem());
+ b64bio=BIO_new(BIO_f_base64());
+
+ bio=BIO_push(b64bio,mbio);
+ /* We now have bio pointing at b64->mem, the base64 bio encodes on
+ * write and decodes on read */
+
+ for (;;)
+ {
+ i=fread(buf,1,512,stdin);
+ if (i <= 0) break;
+ BIO_write(bio,buf,i);
+ }
+ /* We need to 'flush' things to push out the encoding of the
+ * last few bytes. There is special encoding if it is not a
+ * multiple of 3
+ */
+ BIO_flush(bio);
+
+ printf("We have %d bytes available\n",BIO_pending(mbio));
+
+ /* We will now get a pointer to the data and the number of elements. */
+ /* hmm... this one was not defined by a macro in bio.h, it will be for
+ * 0.9.1. The other option is too just read from the memory bio.
+ */
+ i=(int)BIO_ctrl(mbio,BIO_CTRL_INFO,0,(char *)&p);
+
+ printf("%d\n",i);
+ fwrite("---\n",1,4,stdout);
+ fwrite(p,1,i,stdout);
+ fwrite("---\n",1,4,stdout);
+
+ /* This call will walk the chain freeing all the BIOs */
+ BIO_free_all(bio);
+ }