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-rw-r--r--libcilkrts/runtime/sslib/safe_str_constraint.h78
1 files changed, 78 insertions, 0 deletions
diff --git a/libcilkrts/runtime/sslib/safe_str_constraint.h b/libcilkrts/runtime/sslib/safe_str_constraint.h
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+/*------------------------------------------------------------------
+ * safe_str_constraint.h
+ *
+ * October 2008, Bo Berry
+ *
+ * Copyright (c) 2008-2011 Cisco Systems
+ * All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *------------------------------------------------------------------
+ */
+
+#ifndef __SAFE_STR_CONSTRAINT_H__
+#define __SAFE_STR_CONSTRAINT_H__
+
+#include "safeclib_private.h"
+
+/*
+ * Function used by the libraries to invoke the registered
+ * runtime-constraint handler. Always needed.
+ */
+extern void invoke_safe_str_constraint_handler(
+ const char *msg,
+ void *ptr,
+ errno_t error);
+
+
+/*
+ * Safe C Lib internal string routine to consolidate error handling
+ */
+static inline void handle_error(char *orig_dest, rsize_t orig_dmax,
+ char *err_msg, errno_t err_code)
+{
+#ifdef SAFECLIB_STR_NULL_SLACK
+ /* null string to eliminate partial copy */
+ while (orig_dmax) { *orig_dest = '\0'; orig_dmax--; orig_dest++; }
+#else
+ *orig_dest = '\0';
+#endif
+
+ invoke_safe_str_constraint_handler(err_msg, NULL, err_code);
+ return;
+}
+
+static inline void handle_wc_error(wchar_t *orig_dest, rsize_t orig_dmax,
+ char *err_msg, errno_t err_code)
+{
+#ifdef SAFECLIB_STR_NULL_SLACK
+ /* null string to eliminate partial copy */
+ while (orig_dmax) { *orig_dest = L'\0'; orig_dmax--; orig_dest++; }
+#else
+ *orig_dest = L'\0';
+#endif
+
+ invoke_safe_str_constraint_handler(err_msg, NULL, err_code);
+ return;
+}
+
+#endif /* __SAFE_STR_CONSTRAINT_H__ */