Skip to main content

Browse the archive

Staging
v0.5.1
https://github.com/python/cpython
09 December 2020, 11:06:31 UTC
Revision 4d381b17e4b4a86b52cd5562b005eb29066d2cbd authored by Anthony Baxter on 29 March 2005, 12:32:50 UTC, committed by Anthony Baxter on 29 March 2005, 12:32:50 UTC 
Move exception finalisation later in the shutdown process - this
 
fixes the crash seen in bug #1165761
1 parent df07843
Raw File
Tip revision: 4d381b17e4b4a86b52cd5562b005eb29066d2cbd authored by Anthony Baxter on 29 March 2005, 12:32:50 UTC
Move exception finalisation later in the shutdown process - this
Tip revision: 4d381b1
dup2.c 
/*
 * Public domain dup2() lookalike
 * by Curtis Jackson @ AT&T Technologies, Burlington, NC
 * electronic address:  burl!rcj
 *
 * dup2 performs the following functions:
 *
 * Check to make sure that fd1 is a valid open file descriptor.
 * Check to see if fd2 is already open; if so, close it.
 * Duplicate fd1 onto fd2; checking to make sure fd2 is a valid fd.
 * Return fd2 if all went well; return BADEXIT otherwise.
 */

#include <fcntl.h>

#define BADEXIT -1

int
dup2(int fd1, int fd2)
{
	if (fd1 != fd2) {
		if (fcntl(fd1, F_GETFL) < 0)
			return BADEXIT;
		if (fcntl(fd2, F_GETFL) >= 0)
			close(fd2);
		if (fcntl(fd1, F_DUPFD, fd2) < 0)
			return BADEXIT;
	}
	return fd2;
}
back to top