win32: realloc failures

* win32/file.c (code_page_i): handle realloc failure.
  reported by Denis Denisov <denji0k AT gmail.com>.
* win32/stub.c (stub_sysinit): ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49023 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,4 +1,9 @@
-Fri Dec 26 14:33:01 2014  Nobuyoshi Nakada  <nobu@ruby.local>
+Fri Dec 26 14:48:10 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* win32/file.c (code_page_i): handle realloc failure.
+	  reported by Denis Denisov <denji0k AT gmail.com>.
+
+	* win32/stub.c (stub_sysinit): ditto.
 
 	* fix printf format conversion specifiers.
 	  reported by Denis Denisov <denji0k AT gmail.com>.

win32/file.c

@@ -160,8 +160,11 @@ code_page_i(st_data_t name, st_data_t idx, st_data_t arg)
 	    USHORT *table = cp->table;
 	    if (count <= idx) {
 		unsigned int i = count;
-		cp->count = count = (((idx + 4) & ~31) | 28);
-		cp->table = table = realloc(table, count * sizeof(*table));
+		count = (((idx + 4) & ~31) | 28);
+		table = realloc(table, count * sizeof(*table));
+		if (!table) return ST_CONTINUE;
+		cp->count = count;
+		cp->table = table;
 		while (i < count) table[i++] = INVALID_CODE_PAGE;
 	    }
 	    table[idx] = (USHORT)code_page;

win32/stub.c

@@ -21,7 +21,12 @@ stub_sysinit(int *argc, char ***argv)
     for (i = 1; i < ac; ++i) {
 	lenall += strlen(av[i]) + 1;
     }
-    *argv = av = realloc(av, lenall + (lenexe + 1) * 2 + sizeof(char *) * (i + 2));
+    av = realloc(av, lenall + (lenexe + 1) * 2 + sizeof(char *) * (i + 2));
+    if (!av) {
+	perror("realloc command line");
+	exit(-1);
+    }
+    *argv = av;
     *argc = ++ac;
     p = (char *)(av + i + 2);
     memmove(p + (lenexe + 1) * 2, (char *)(av + ac) + len0, lenall);