struct stat.st_type in Watcom C/C++ v9.5 for QNX

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2 total messages Started by Marek Brudka (A. Pacut) Tue, 02 Apr 1996 18:59

Author: Marek Brudka (A. Pacut)
Date: Tue, 02 Apr 1996 18:59

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1150 bytes

Hi,
According to the "WATCOM C LIBRARY REFERENCE FOR QNX" the structure stat
in sys/stat.h should contain the field _ftype_t st_type that allows to
identify the type of given file i.e if it is fifo, regular, directory
etc. Unfortunatelly there is no st_type in this structure. Moreover
there is no field of _ftype_t in the structure stat that makes me able
to recognize the file (althought the field st_spare0 is the appropriate
type, its values are usually useless). Could anybody tell me then what
is the way of checking the type of a file?
 
					Thanks
					Marek Brudka
					brudka@ia.pw.edu.pl

Re: struct stat.st_type in Watcom C/C++ v9.5 for QNX

Author: Lawrence Kirby
Date: Wed, 03 Apr 1996 23:19

25 lines
1742 bytes

In article <3161791B.5D8F@ia.pw.edu.pl> brudka@ia.pw.edu.pl "A. Pacut" writes:

>Hi,
>According to the "WATCOM C LIBRARY REFERENCE FOR QNX" the structure stat
>in sys/stat.h should contain the field _ftype_t st_type that allows to
>identify the type of given file i.e if it is fifo, regular, directory
>etc. Unfortunatelly there is no st_type in this structure. Moreover
>there is no field of _ftype_t in the structure stat that makes me able
>to recognize the file (althought the field st_spare0 is the appropriate
>type, its values are usually useless). Could anybody tell me then what
>is the way of checking the type of a file?

Standard C doesn't support file types and doesn't define a struct stat.
POSIX does and the information is held in the st_mode member. POSIX also
defines S_ISDIR(), S_ISCHR(), S_ISBLK(), S_ISREG(), S_ISFIFO() macros
for testing an st_mode value.

I've removed comp.lang.c and comp.lang.c++ from the followups and added
comp.unix.programmer.

-- 
-----------------------------------------
Lawrence Kirby | fred@genesis.demon.co.uk
Wilts, England | 70734.126@compuserve.com
-----------------------------------------

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