NAME¶
explain_dup2_or_die - duplicate a file descriptor and report errors
SYNOPSIS¶
#include <libexplain/dup2.h>
void explain_dup2_or_die(int oldfd, int newfd);
DESCRIPTION¶
The
explain_dup2_or_die function is used to call the
dup2(2)
system call. On failure an explanation will be printed to
stderr,
obtained from
explain_dup2(3), and then the process terminates by
calling exit(EXIT_FAILURE).
This function is intended to be used in a fashion similar to the following
example:
explain_dup2_or_die(oldfd, newfd);
- oldfd
- The oldfd, exactly as to be passed to the dup2(2)
system call.
- newfd
- The newfd, exactly as to be passed to the dup2(2)
system call.
- Returns:
- This function only returns on success. On failure, prints
an explanation and exits.
SEE ALSO¶
- dup2(2)
- duplicate a file descriptor
- explain_dup2(3)
- explain dup2(2) errors
- exit(2)
- terminate the calling process
COPYRIGHT¶
libexplain version 0.52
Copyright (C) 2008 Peter Miller