use PATH_MAX for char array length instead of head coded 256

Author: lostwinder

src/gridftp_hdfs.c

@@ -31,8 +31,8 @@ int local_io_block_size = 0;
 int local_io_count = 0;
 
 // global variable for username, filename and event type
-char gridftp_user_name[256];
-char gridftp_file_name[256];
+char gridftp_user_name[PATH_MAX];
+char gridftp_file_name[PATH_MAX];
 char gridftp_transfer_type[10];
 
 static globus_mutex_t g_hdfs_mutex;

src/gridftp_hdfs_recv.c

@@ -5,7 +5,7 @@
 #define ADVANCE_SLASHES(x) {while (x[0] == '/' && x[1] == '/') x++;}
 
 // extern global variable "gridftp_file_name"
-extern char gridftp_file_name[256];
+extern char gridftp_file_name[PATH_MAX];
 extern char gridftp_transfer_type[10];
 
 // Forward declarations of local functions

src/gridftp_hdfs_send.c

@@ -2,7 +2,7 @@
 #include "gridftp_hdfs.h"
 #include <syslog.h>
 
-extern char gridftp_file_name[256];
+extern char gridftp_file_name[PATH_MAX];
 extern char gridftp_transfer_type[10];
 
 // Forward declarations of local functions