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bash execute_cmd uses 'long' to count file descriptors; 'int' suffices

From: Paul Eggert
Subject: bash execute_cmd uses 'long' to count file descriptors; 'int' suffices
Date: Thu, 12 Apr 2001 17:39:50 -0700 (PDT)

Configuration Information [Automatically generated, do not change]:
Machine: sparc
OS: solaris2.8
Compiler: gcc
Compilation CFLAGS:  -DPROGRAM='bash' -DCONF_HOSTTYPE='sparc' 
-DCONF_OSTYPE='solaris2.8' -DCONF_MACHTYPE='sparc-sun-solaris2.8' 
-DCONF_VENDOR='sun' -DSHELL  -DHAVE_CONFIG_H   -I.  -I. -I./include -I./lib 
-I/opt/reb/include -g -O2 -Wall
uname output: SunOS shade.twinsun.com 5.8 Generic_108528-06 sun4u sparc 
Machine Type: sparc-sun-solaris2.8

Bash Version: 2.05
Patch Level: 0
Release Status: release

        This patch doesn't fix any bugs; it's just a minor coding cleanup.

        Bash's struct fd_map uses a 'long' field to count file descriptors.
        The rest of the code is inconsistent; sometimes it uses 'long'
        and other times (e.g. FD_BITMAP_SIZE, new_bitmap_size) it uses 'int'.
        It's more consistent to uniformly use 'int' to count file descriptors,
        since they must fit in 'int'.


2001-04-12  Paul Eggert  <address@hidden>

        * shell.h (struct fd_bitmap.size):
        Now int; long is overkill by definition, since this value
        counts file descriptors.
        * execute_cmd.h (new_fd_bitmap): Accept int, not long.
        * execute_cmd.c (new_fd_bitmap): Likewise.
        (FD_BITMAP_DEFAULT_SIZE): Now int, not long.

RCS file: RCS/shell.h,v
retrieving revision
retrieving revision
diff -pu -r2.5.0.1 -r2.5.0.2
--- shell.h     2001/04/11 05:56:29
+++ shell.h     2001/04/13 00:32:06
@@ -85,7 +85,7 @@ extern int executing, login_shell;
 /* Structure to pass around that holds a bitmap of file descriptors
    to close, and the size of that structure.  Used in execute_cmd.c. */
 struct fd_bitmap {
-  long size;
+  int size;
   char *bitmap;
RCS file: RCS/execute_cmd.h,v
retrieving revision 2.5
retrieving revision
diff -pu -r2.5 -r2.5.0.1
--- execute_cmd.h       1999/08/05 11:05:25     2.5
+++ execute_cmd.h       2001/04/13 00:32:06
@@ -23,7 +23,7 @@
 #include "stdc.h"
-extern struct fd_bitmap *new_fd_bitmap __P((long));
+extern struct fd_bitmap *new_fd_bitmap __P((int));
 extern void dispose_fd_bitmap __P((struct fd_bitmap *));
 extern void close_fd_bitmap __P((struct fd_bitmap *));
 extern int executing_line_number __P((void));
RCS file: RCS/execute_cmd.c,v
retrieving revision 2.5
retrieving revision
diff -pu -r2.5 -r2.5.0.1
--- execute_cmd.c       2001/03/22 15:17:23     2.5
+++ execute_cmd.c       2001/04/13 00:32:06
@@ -194,14 +194,14 @@ SHELL_VAR *this_shell_function;
 struct fd_bitmap *current_fds_to_close = (struct fd_bitmap *)NULL;
 /* Functions to allocate and deallocate the structures used to pass
    information from the shell to its children about file descriptors
    to close. */
 struct fd_bitmap *
 new_fd_bitmap (size)
-     long size;
+     int size;
   struct fd_bitmap *ret;

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