Changed IMFS to use IMFS_NAME_MAX as the maximum length of a basename

rather then NAME_MAX.  NAME_MAX is 255 and that lets IMFS chew up memory
too fast.  Perhaps in the future, the places in IMFS that put a maximum
length name string on the stack and the jnode structure does not include
a maximu length name string can be fixed so this is not a problem.

7 files changed, 29 insertions, 23 deletions

diff --git a/c/src/exec/libfs/src/imfs/imfs.h b/c/src/exec/libfs/src/imfs/imfs.h
index e67964971e..0421e9e25c 100644
--- a/c/src/exec/libfs/src/imfs/imfs.h
+++ b/c/src/exec/libfs/src/imfs/imfs.h
@@ -126,25 +126,31 @@ typedef union {
 } IMFS_types_union;
 
 /*
+ *  Maximum length of a "basename" of an IMFS file/node.
+ */
+
+#define IMFS_NAME_MAX  32
+
+/*
  *  The control structure for an IMFS jnode.
  */
 
 struct IMFS_jnode_tt {
-  Chain_Node               Node;             /* for chaining them together */
-  IMFS_jnode_t            *Parent;           /* Parent node */
-  char                     name[NAME_MAX+1]; /* "basename" */ 
-  mode_t                   st_mode;          /* File mode */
-  nlink_t                  st_nlink;         /* Link count */
-  ino_t                    st_ino;           /* inode */
-
-  uid_t                    st_uid;           /* User ID of owner */
-  gid_t                    st_gid;           /* Group ID of owner */
-
-  time_t                   st_atime;         /* Time of last access */
-  time_t                   st_mtime;         /* Time of last modification */
-  time_t                   st_ctime;         /* Time of last status change */
-  IMFS_jnode_types_t       type;             /* Type of this entry */
-  IMFS_types_union         info;
+  Chain_Node          Node;                  /* for chaining them together */
+  IMFS_jnode_t       *Parent;                /* Parent node */
+  char                name[IMFS_NAME_MAX+1]; /* "basename" */ 
+  mode_t              st_mode;               /* File mode */
+  nlink_t             st_nlink;              /* Link count */
+  ino_t               st_ino;                /* inode */
+
+  uid_t               st_uid;                /* User ID of owner */
+  gid_t               st_gid;                /* Group ID of owner */
+
+  time_t              st_atime;              /* Time of last access */
+  time_t              st_mtime;              /* Time of last modification */
+  time_t              st_ctime;              /* Time of last status change */
+  IMFS_jnode_types_t  type;                  /* Type of this entry */
+  IMFS_types_union    info;
 };
 
 #define IMFS_update_atime( _jnode )         \
diff --git a/c/src/exec/libfs/src/imfs/imfs_creat.c b/c/src/exec/libfs/src/imfs/imfs_creat.c
index fd38e7f993..6b638ed07c 100644
--- a/c/src/exec/libfs/src/imfs/imfs_creat.c
+++ b/c/src/exec/libfs/src/imfs/imfs_creat.c
@@ -51,7 +51,7 @@ IMFS_jnode_t *IMFS_create_node(
 
   node->st_nlink = 1;
   node->type     = type;
-  strncpy( node->name, name, NAME_MAX );
+  strncpy( node->name, name, IMFS_NAME_MAX );
 
   /*
    *  Fill in the mode and permission information for the jnode structure.
diff --git a/c/src/exec/libfs/src/imfs/imfs_eval.c b/c/src/exec/libfs/src/imfs/imfs_eval.c
index d6d444f6d2..e7e2d47908 100644
--- a/c/src/exec/libfs/src/imfs/imfs_eval.c
+++ b/c/src/exec/libfs/src/imfs/imfs_eval.c
@@ -277,7 +277,7 @@ int IMFS_evaluate_for_make(
   int                                 i = 0;
   int                                 len;
   IMFS_token_types                    type;
-  char                                token[ NAME_MAX + 1 ];
+  char                                token[ IMFS_NAME_MAX + 1 ];
   rtems_filesystem_location_info_t    newloc;
   IMFS_jnode_t                       *node;
   int                                 done = 0;
@@ -467,7 +467,7 @@ int IMFS_eval_path(
   int                                 i = 0;
   int                                 len;
   IMFS_token_types                    type = IMFS_CURRENT_DIR;
-  char                                token[ NAME_MAX + 1 ];
+  char                                token[ IMFS_NAME_MAX + 1 ];
   rtems_filesystem_location_info_t    newloc;
   IMFS_jnode_t                       *node;
   int                                 result; 
diff --git a/c/src/exec/libfs/src/imfs/imfs_gtkn.c b/c/src/exec/libfs/src/imfs/imfs_gtkn.c
index 052c67ceba..aa63841725 100644
--- a/c/src/exec/libfs/src/imfs/imfs_gtkn.c
+++ b/c/src/exec/libfs/src/imfs/imfs_gtkn.c
@@ -32,11 +32,11 @@ IMFS_token_types IMFS_get_token(
    *  Copy a name into token.  (Remember NULL is a token.)
    */
 
-  while ( !IMFS_is_separator( path[i] ) && (i <= NAME_MAX) ) {
+  while ( !IMFS_is_separator( path[i] ) && (i <= IMFS_NAME_MAX) ) {
 
      token[i] = path[i];
 
-     if (i == NAME_MAX)
+     if (i == IMFS_NAME_MAX)
        return IMFS_INVALID_TOKEN;
 
      if ( !IMFS_is_valid_name_char( token[i] ) )
diff --git a/c/src/exec/libfs/src/imfs/imfs_link.c b/c/src/exec/libfs/src/imfs/imfs_link.c
index 2232209705..34d277646d 100644
--- a/c/src/exec/libfs/src/imfs/imfs_link.c
+++ b/c/src/exec/libfs/src/imfs/imfs_link.c
@@ -28,7 +28,7 @@ int IMFS_link(
 {
   IMFS_types_union   info;
   IMFS_jnode_t      *new_node;
-  char               new_name[ NAME_MAX + 1 ];
+  char               new_name[ IMFS_NAME_MAX + 1 ];
   int                i;
 
   /*
diff --git a/c/src/exec/libfs/src/imfs/imfs_mknod.c b/c/src/exec/libfs/src/imfs/imfs_mknod.c
index d4feef4f36..c8c05b3a26 100644
--- a/c/src/exec/libfs/src/imfs/imfs_mknod.c
+++ b/c/src/exec/libfs/src/imfs/imfs_mknod.c
@@ -35,7 +35,7 @@ int IMFS_mknod(
   IMFS_token_types   type = 0;
   IMFS_jnode_t      *new_node;
   int                result;
-  char               new_name[ NAME_MAX + 1 ];
+  char               new_name[ IMFS_NAME_MAX + 1 ];
   IMFS_types_union   info;
   
   IMFS_get_token( token, new_name, &result );
diff --git a/c/src/exec/libfs/src/imfs/imfs_symlink.c b/c/src/exec/libfs/src/imfs/imfs_symlink.c
index 0d3ebbd670..36b24fef88 100644
--- a/c/src/exec/libfs/src/imfs/imfs_symlink.c
+++ b/c/src/exec/libfs/src/imfs/imfs_symlink.c
@@ -28,7 +28,7 @@ int IMFS_symlink(
 {
   IMFS_types_union   info;
   IMFS_jnode_t      *new_node;
-  char               new_name[ NAME_MAX + 1 ];
+  char               new_name[ IMFS_NAME_MAX + 1 ];
   int                i;
 
   /*