clib2 Code

Brought to you by: obarthel

Commit [r241] Maximize Restore History

- Changed how errors are detected, as returned by Write(), Read() and

Seek(). Seek() is particularly challenging because the value it
returns might be a valid file position and not an error.

- Replaced numeric function return codes of 0 and -1 with macros OK,
SEEK_ERROR/ERROR to clarify the respective purposes.

- Changed how ftell() and fseek() are used, double-checking the return
value and the errno code.

Authored by: obarthel 2005-04-24

Parent: [r240]

Child: [r242]

changed	/trunk/library/changes
changed	/trunk/library/fcntl_lseek.c
changed	/trunk/library/stdio_dropiobreadbuffer.c
changed	/trunk/library/stdio_fdhookentry.c
changed	/trunk/library/stdio_fgetpos.c
changed	/trunk/library/stdio_fseek.c
changed	/trunk/library/stdio_fsetpos.c
changed	/trunk/library/stdio_ftell.c
changed	/trunk/library/stdio_grow_file.c
changed	/trunk/library/stdio_record_locking.c
changed	/trunk/library/stdio_rename.c
changed	/trunk/library/unistd_ftruncate.c