explain_dup2_or_die(3) - Linux man page
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 © 2008 Peter Miller