[gnunet] 02/02: make static analysis happier

[gnunet]

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grothoff pushed a commit to branch master
in repository gnunet.

commit d1bdcb2618b13c3289492347550feb3fcf1f812d
Author: Christian Grothoff <address@hidden>
AuthorDate: Tue Mar 3 12:31:23 2020 +0100

    make static analysis happier
---
 src/util/configuration.c |  3 ++-
 src/util/strings.c       | 11 ++++++++---
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/src/util/configuration.c b/src/util/configuration.c
index 0480ebd5d..7ed87cc1e 100644
--- a/src/util/configuration.c
+++ b/src/util/configuration.c
@@ -1241,7 +1241,7 @@ GNUNET_CONFIGURATION_have_value (const struct 
GNUNET_CONFIGURATION_Handle *cfg,
  * @param cfg configuration to use for path expansion
  * @param orig string to $-expand (will be freed!)
  * @param depth recursion depth, used to detect recursive expansions
- * @return $-expanded string
+ * @return $-expanded string, never NULL unless @a orig was NULL
  */
 static char *
 expand_dollar (const struct GNUNET_CONFIGURATION_Handle *cfg,
@@ -1421,6 +1421,7 @@ GNUNET_CONFIGURATION_expand_dollar (
       continue;
     dup = GNUNET_strdup (orig + i);
     dup = expand_dollar (cfg, dup, 0);
+    GNUNET_assert (NULL != dup); /* make compiler happy */
     len = strlen (dup) + 1;
     orig = GNUNET_realloc (orig, i + len);
     GNUNET_memcpy (orig + i, dup, len);
diff --git a/src/util/strings.c b/src/util/strings.c
index a291dc4e1..f3089bf65 100644
--- a/src/util/strings.c
+++ b/src/util/strings.c
@@ -1932,6 +1932,7 @@ GNUNET_STRINGS_base64url_encode (const void *in, size_t 
len, char **output)
   return strlen (enc);
 }
 
+
 #define cvtfind(a)                        \
   ((((a) >= 'A') && ((a) <= 'Z'))         \
    ? (a) - 'A'                          \
@@ -1964,7 +1965,7 @@ GNUNET_STRINGS_base64_decode (const char *data, size_t 
len, void **out)
                 "ignoring CR/LF\n");                              \
     i++;                                                          \
     if (i >= len)                                                 \
-    goto END;                                                   \
+      goto END;                                                   \
   }
 
   output = GNUNET_malloc ((len * 3 / 4) + 8);
@@ -2046,16 +2047,20 @@ GNUNET_STRINGS_base64url_decode (const char *data, 
size_t len, void **out)
   case 0:
     break;   // No pad chars in this case
   case 2:
-    strncpy (&s[len], "==", 2);
+    memcpy (&s[len],
+            "==",
+            2);
+    len += 2;
     break;         // Two pad chars
   case 3:
     s[len] = '=';
+    len++;
     break;         // One pad char
   default:
     GNUNET_assert (0);
     break;
   }
-  ret = GNUNET_STRINGS_base64_decode (s, strlen (s), out);
+  ret = GNUNET_STRINGS_base64_decode (s, len, out);
   GNUNET_free (s);
   return ret;
 }

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