merge revision(s) 25656:

	* win32/win32.c (CreateChild): allocate temporary buffer and use it
	  instead of directly modify the passed string.  [ruby-dev:39635]


git-svn-id: http://svn.ruby-lang.org/repos/ruby/branches/ruby_1_8_7@26113 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Wed Dec 16 20:17:40 2009  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (CreateChild): allocate temporary buffer and use it
+	  instead of directly modify the passed string.  [ruby-dev:39635]
+
 Wed Dec 16 19:49:47 2009  URABE Shyouhei  <shyouhei@ruby-lang.org>
 
 	* instruby.rb (with_destdir): revert. [ruby-dev:39885]

version.h

@@ -2,7 +2,7 @@
 #define RUBY_RELEASE_DATE "2009-12-16"
 #define RUBY_VERSION_CODE 187
 #define RUBY_RELEASE_CODE 20091216
-#define RUBY_PATCHLEVEL 241
+#define RUBY_PATCHLEVEL 242
 
 #define RUBY_VERSION_MAJOR 1
 #define RUBY_VERSION_MINOR 8

win32/win32.c

@@ -1066,11 +1066,13 @@ CreateChild(const char *cmd, const char *prog, SECURITY_ATTRIBUTES *psa,
 	}
     }
     if (p) {
-	shell = p;
-	while (*p) {
-	    if ((unsigned char)*p == '/')
-		*p = '\\';
-	    p = CharNext(p);
+	char *tmp = ALLOCA_N(char, strlen(p) + 1);
+	strcpy(tmp, p);
+	shell = tmp;
+	while (*tmp) {
+	    if ((unsigned char)*tmp == '/')
+		*tmp = '\\';
+	    tmp = CharNext(tmp);
 	}
     }