[libmicrohttpd] 03/03: Updated test_sha* and test_md5 with unaligned data

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karlson2k pushed a commit to branch master
in repository libmicrohttpd.

commit 7676e698a95df3825931b48652ff32be012e3a3c
Author: Evgeny Grin (Karlson2k) <k2k@narod.ru>
AuthorDate: Sun May 16 21:34:31 2021 +0300

    Updated test_sha* and test_md5 with unaligned data
---
 src/microhttpd/test_md5.c    | 45 ++++++++++++++++++++++++++++++++++++++++++++
 src/microhttpd/test_sha1.c   |  2 +-
 src/microhttpd/test_sha256.c | 45 ++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 91 insertions(+), 1 deletion(-)

diff --git a/src/microhttpd/test_md5.c b/src/microhttpd/test_md5.c
index 9d3ff63f..5e04ead0 100644
--- a/src/microhttpd/test_md5.c
+++ b/src/microhttpd/test_md5.c
@@ -27,6 +27,7 @@
 #include "md5.h"
 #include "test_helpers.h"
 #include <stdio.h>
+#include <stdlib.h>
 
 static int verbose = 0; /* verbose level (0-1)*/
 
@@ -369,6 +370,48 @@ test2_bin (void)
 }
 
 
+/* Use data set number 7 as it has the longest sequence */
+#define DATA_POS 6
+#define MAX_OFFSET 31
+
+static int
+test_unaligned (void)
+{
+  int num_failed = 0;
+  unsigned int offset;
+  uint8_t *buf;
+  uint8_t *digest_buf;
+
+  const struct data_unit2 *const tdata = data_units2 + DATA_POS;
+
+  buf = malloc (tdata->bin_l.len + MAX_OFFSET);
+  digest_buf = malloc (MD5_DIGEST_SIZE + MAX_OFFSET);
+  if ((NULL == buf) || (NULL == digest_buf))
+    exit (99);
+
+  for (offset = MAX_OFFSET; offset >= 1; --offset)
+  {
+    struct MD5Context ctx;
+    uint8_t *unaligned_digest;
+    uint8_t *unaligned_buf;
+
+    unaligned_buf = buf + offset;
+    memcpy (unaligned_buf, tdata->bin_l.bin, tdata->bin_l.len);
+    unaligned_digest = digest_buf + MAX_OFFSET - offset;
+    memset (unaligned_digest, 0, MD5_DIGEST_SIZE);
+
+    MHD_MD5Init (&ctx);
+    MHD_MD5Update (&ctx, unaligned_buf, tdata->bin_l.len);
+    MHD_MD5Final (&ctx, unaligned_digest);
+    num_failed += check_result (__FUNCTION__, MAX_OFFSET - offset,
+                                unaligned_digest, tdata->digest);
+  }
+  free (digest_buf);
+  free (buf);
+  return num_failed;
+}
+
+
 int
 main (int argc, char *argv[])
 {
@@ -383,5 +426,7 @@ main (int argc, char *argv[])
   num_failed += test2_str ();
   num_failed += test2_bin ();
 
+  num_failed += test_unaligned ();
+
   return num_failed ? 1 : 0;
 }
diff --git a/src/microhttpd/test_sha1.c b/src/microhttpd/test_sha1.c
index d82a2678..4426a3c7 100644
--- a/src/microhttpd/test_sha1.c
+++ b/src/microhttpd/test_sha1.c
@@ -356,7 +356,7 @@ test2_bin (void)
 }
 
 
-/* Use data set number 7 as it is the longest sequence */
+/* Use data set number 7 as it has the longest sequence */
 #define DATA_POS 6
 #define MAX_OFFSET 31
 
diff --git a/src/microhttpd/test_sha256.c b/src/microhttpd/test_sha256.c
index 863859fa..91b28af2 100644
--- a/src/microhttpd/test_sha256.c
+++ b/src/microhttpd/test_sha256.c
@@ -27,6 +27,7 @@
 #include "sha256.h"
 #include "test_helpers.h"
 #include <stdio.h>
+#include <stdlib.h>
 
 static int verbose = 0; /* verbose level (0-1)*/
 
@@ -416,6 +417,48 @@ test2_bin (void)
 }
 
 
+/* Use data set number 7 as it has the longest sequence */
+#define DATA_POS 6
+#define MAX_OFFSET 31
+
+static int
+test_unaligned (void)
+{
+  int num_failed = 0;
+  unsigned int offset;
+  uint8_t *buf;
+  uint8_t *digest_buf;
+
+  const struct data_unit2 *const tdata = data_units2 + DATA_POS;
+
+  buf = malloc (tdata->bin_l.len + MAX_OFFSET);
+  digest_buf = malloc (SHA256_DIGEST_SIZE + MAX_OFFSET);
+  if ((NULL == buf) || (NULL == digest_buf))
+    exit (99);
+
+  for (offset = MAX_OFFSET; offset >= 1; --offset)
+  {
+    struct sha256_ctx ctx;
+    uint8_t *unaligned_digest;
+    uint8_t *unaligned_buf;
+
+    unaligned_buf = buf + offset;
+    memcpy (unaligned_buf, tdata->bin_l.bin, tdata->bin_l.len);
+    unaligned_digest = digest_buf + MAX_OFFSET - offset;
+    memset (unaligned_digest, 0, SHA256_DIGEST_SIZE);
+
+    MHD_SHA256_init (&ctx);
+    MHD_SHA256_update (&ctx, unaligned_buf, tdata->bin_l.len);
+    MHD_SHA256_finish (&ctx, unaligned_digest);
+    num_failed += check_result (__FUNCTION__, MAX_OFFSET - offset,
+                                unaligned_digest, tdata->digest);
+  }
+  free (digest_buf);
+  free (buf);
+  return num_failed;
+}
+
+
 int
 main (int argc, char *argv[])
 {
@@ -430,5 +473,7 @@ main (int argc, char *argv[])
   num_failed += test2_str ();
   num_failed += test2_bin ();
 
+  num_failed += test_unaligned ();
+
   return num_failed ? 1 : 0;
 }

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