Adding upstream version 2.9.4.upstream/2.9.4

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 133 insertions, 0 deletions

diff --git a/src/util/crypto/libcrypto/crypto_base64.c b/src/util/crypto/libcrypto/crypto_base64.c
new file mode 100644
index 0000000..11a0648
--- /dev/null
+++ b/src/util/crypto/libcrypto/crypto_base64.c
@@ -0,0 +1,133 @@
+/*
+    Authors:
+        Jan Cholasta <jcholast@redhat.com>
+        George McCollister <george.mccollister@gmail.com>
+
+    Copyright (C) 2012 Red Hat
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "util/util.h"
+#include "util/crypto/sss_crypto.h"
+
+#include <openssl/bio.h>
+#include <openssl/evp.h>
+
+char *sss_base64_encode(TALLOC_CTX *mem_ctx,
+                        const unsigned char *in,
+                        size_t insize)
+{
+    char *b64encoded = NULL, *outbuf = NULL;
+    int i, j, b64size;
+    BIO *bmem, *b64;
+
+    b64 = BIO_new(BIO_f_base64());
+    if (!b64) return NULL;
+
+    BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL);
+    bmem = BIO_new(BIO_s_mem());
+    if (!bmem) goto done;
+
+    b64 = BIO_push(b64, bmem);
+
+    BIO_write(b64, in, insize);
+
+    (void) BIO_flush(b64);
+
+    b64size = BIO_get_mem_data(bmem, &b64encoded);
+    if (b64encoded) {
+        outbuf = talloc_array(mem_ctx, char, b64size+1);
+        if (outbuf == NULL) goto done;
+
+        for (i=0, j=0; i < b64size; i++) {
+            if (b64encoded[i] == '\n' || b64encoded[i] == '\r') {
+                continue;
+            }
+            outbuf[j++] = b64encoded[i];
+        }
+        outbuf[j++] = '\0';
+    }
+
+done:
+    BIO_free_all(b64);
+    return outbuf;
+}
+
+unsigned char *sss_base64_decode(TALLOC_CTX *mem_ctx,
+                                 const char *in,
+                                 size_t *outsize)
+{
+    unsigned char *outbuf = NULL;
+    unsigned char *b64decoded = NULL;
+    unsigned char inbuf[512];
+    char * in_dup;
+    int size, inlen = strlen(in);
+    BIO *bmem, *b64, *bmem_out;
+    TALLOC_CTX *tmp_ctx = NULL;
+
+    tmp_ctx = talloc_new(NULL);
+    if (!tmp_ctx) {
+        return NULL;
+    }
+
+    in_dup = talloc_size(tmp_ctx, inlen+1);
+    if (!in_dup) goto done;
+    memcpy(in_dup, in, inlen+1);
+
+    b64 = BIO_new(BIO_f_base64());
+    if (!b64) goto done;
+
+    BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL);
+
+    bmem = BIO_new_mem_buf(in_dup, -1);
+    if (!bmem) {
+        BIO_free(b64);
+        goto done;
+    }
+
+    b64 = BIO_push(b64, bmem);
+
+    bmem_out = BIO_new(BIO_s_mem());
+    if (!bmem_out) {
+        BIO_free_all(b64);
+        goto done;
+    }
+
+    while((inlen = BIO_read(b64, inbuf, 512)) > 0)
+        BIO_write(bmem_out, inbuf, inlen);
+
+    (void) BIO_flush(bmem_out);
+
+    size = BIO_get_mem_data(bmem_out, &b64decoded);
+
+    if (b64decoded) {
+        outbuf = talloc_memdup(mem_ctx, b64decoded, size);
+        if (!outbuf) {
+            BIO_free_all(b64);
+            BIO_free(bmem_out);
+            goto done;
+        }
+
+        *outsize = size;
+    } else {
+        DEBUG(SSSDBG_CRIT_FAILURE, "Cannot get decoded data\n");
+    }
+    BIO_free_all(b64);
+    BIO_free(bmem_out);
+
+done:
+    talloc_free(tmp_ctx);
+    return outbuf;
+}