introduce XMEMMOVE and check for its usage

Author: sjaeckel

helper.pl

@@ -50,6 +50,7 @@ sub check_source {
       push @{$troubles->{unwanted_free}},    $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bfree\s*\(/;
       push @{$troubles->{unwanted_memset}},  $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bmemset\s*\(/;
       push @{$troubles->{unwanted_memcpy}},  $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bmemcpy\s*\(/;
+      push @{$troubles->{unwanted_memmove}}, $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bmemmove\s*\(/;
       push @{$troubles->{unwanted_memcmp}},  $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bmemcmp\s*\(/;
       push @{$troubles->{unwanted_strcmp}},  $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bstrcmp\s*\(/;
       push @{$troubles->{unwanted_clock}},   $lineno if $file =~ /^src\/.*\.c$/ && $l =~ /\bclock\s*\(/;

src/headers/tomcrypt_custom.h

@@ -30,6 +30,9 @@
 #ifndef XMEMCPY
 #define XMEMCPY  memcpy
 #endif
+#ifndef XMEMMOVE
+#define XMEMMOVE memmove
+#endif
 #ifndef XMEMCMP
 #define XMEMCMP  memcmp
 #endif