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-rw-r--r--xlators/storage/posix/src/posix-handle.h22
1 files changed, 18 insertions, 4 deletions
diff --git a/xlators/storage/posix/src/posix-handle.h b/xlators/storage/posix/src/posix-handle.h
index a34b936..0ce9575 100644
--- a/xlators/storage/posix/src/posix-handle.h
+++ b/xlators/storage/posix/src/posix-handle.h
@@ -15,10 +15,16 @@
#include "config.h"
#endif
+#include <limits.h>
#include <sys/types.h>
#include "xlator.h"
#include "gf-dirent.h"
+/* From Open Group Base Specifications Issue 6 */
+#ifndef _XOPEN_PATH_MAX
+#define _XOPEN_PATH_MAX 1024
+#endif
+
#define TRASH_DIR "landfill"
#define UUID0_STR "00000000-0000-0000-0000-000000000000"
@@ -120,10 +126,18 @@
} while (0)
#define MAKE_REAL_PATH(var, this, path) do { \
- var = alloca (strlen (path) + POSIX_BASE_PATH_LEN(this) + 2); \
- strcpy (var, POSIX_BASE_PATH(this)); \
- strcpy (&var[POSIX_BASE_PATH_LEN(this)], path); \
- } while (0)
+ size_t path_len = strlen(path); \
+ size_t var_len = path_len + POSIX_BASE_PATH_LEN(this) + 1; \
+ if (POSIX_PATH_MAX(this) != -1 && \
+ var_len >= POSIX_PATH_MAX(this)) { \
+ var = alloca (path_len + 1); \
+ strcpy (var, (path[0] == '/') ? path + 1 : path); \
+ } else { \
+ var = alloca (var_len); \
+ strcpy (var, POSIX_BASE_PATH(this)); \
+ strcpy (&var[POSIX_BASE_PATH_LEN(this)], path); \
+ } \
+ } while (0)
#define MAKE_HANDLE_PATH(var, this, gfid, base) do { \
int __len; \