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libarchive: Cast mode constants to mode_t in case it is signed

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At least one compiler (Borland) defines mode_t as just "short" which is
signed.  This breaks code like

  switch(archive_entry_filetype(e)) {
    case AE_IFREG:
    ...
  }

if AE_IFREG and other constants have a longer signed type (int) because
sign extension of the mode_t return type from archive_entry_filetype
changes its value.  Avoid the problem by ensuring the type of the
constants matches mode_t.

This change was originally made in commit a73acfbe (Fix for mode_t with
signed types, 2009-11-07).  Port it to the new libarchive snapshot.
This commit is contained in:
Brad King 2011-12-22 10:06:50 -05:00
parent e00dbe86d9
commit 297d9f2032
1 changed files with 8 additions and 8 deletions
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16
Utilities/cmlibarchive/libarchive/archive_entry.h
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@ -149,14 +149,14 @@ struct archive_entry;
* portable values to platform-native values when entries are read from
* or written to disk.
*/
#define AE_IFMT 0170000
#define AE_IFREG 0100000
#define AE_IFLNK 0120000
#define AE_IFSOCK 0140000
#define AE_IFCHR 0020000
#define AE_IFBLK 0060000
#define AE_IFDIR 0040000
#define AE_IFIFO 0010000
#define AE_IFMT ((__LA_MODE_T)0170000)
#define AE_IFREG ((__LA_MODE_T)0100000)
#define AE_IFLNK ((__LA_MODE_T)0120000)
#define AE_IFSOCK ((__LA_MODE_T)0140000)
#define AE_IFCHR ((__LA_MODE_T)0020000)
#define AE_IFBLK ((__LA_MODE_T)0060000)
#define AE_IFDIR ((__LA_MODE_T)0040000)
#define AE_IFIFO ((__LA_MODE_T)0010000)
/*
* Basic object manipulation