10-14-2009
i am trying to open a file pointer for stdin using fopen() and setting code character set as UTF16. Ofcourse STDIN itself is a File Pointer but my intention was to set UTF16 as code charset for stdin and fopen() is the only one will achieve that.
I have following code
fp=fopen("/dev/stdin","r,ccs=UTF-16LE");
Here device file for stdin is /dev/stdin and is available on all platforms except on HPUX and AIX.
For fopen(), file name is must i.e. /dev/stdin for stdin.
Please let me know how to achieve above functionality (fopen code given above).
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LEARN ABOUT DEBIAN
stdout
FD(4) BSD Kernel Interfaces Manual FD(4)
NAME
fd, stdin, stdout, stderr -- file descriptor files
DESCRIPTION
The files /dev/fd/0 through /dev/fd/# refer to file descriptors which can be accessed through the file system. If the file descriptor is
open and the mode the file is being opened with is a subset of the mode of the existing descriptor, the call:
fd = open("/dev/fd/0", mode);
and the call:
fd = fcntl(0, F_DUPFD, 0);
are equivalent.
Opening the files /dev/stdin, /dev/stdout and /dev/stderr is equivalent to the following calls:
fd = fcntl(STDIN_FILENO, F_DUPFD, 0);
fd = fcntl(STDOUT_FILENO, F_DUPFD, 0);
fd = fcntl(STDERR_FILENO, F_DUPFD, 0);
Flags to the open(2) call other than O_RDONLY, O_WRONLY and O_RDWR are ignored.
IMPLEMENTATION NOTES
By default, /dev/fd is provided by devfs(5), which provides nodes for the first three file descriptors. Some sites may require nodes for
additional file descriptors; these can be made available by mounting fdescfs(5) on /dev/fd.
FILES
/dev/fd/#
/dev/stdin
/dev/stdout
/dev/stderr
SEE ALSO
tty(4), devfs(5), fdescfs(5)
BSD
June 9, 1993 BSD