202b6aaad6
QEMU is a generic and open source processor emulator which achieves a good emulation speed by using dynamic translation. QEMU has two operating modes: * Full system emulation. In this mode, QEMU emulates a full system (for example a PC), including a processor and various peripherials. It can be used to launch different Operating Systems without rebooting the PC or to debug system code. * User mode emulation (Linux host only). In this mode, .. many thanks for feedback from many people, and for Lars Hansson and Michael Schmidt for posting early work on the port of qemu to ports@ For now, only for macppc and i386, as these are currently the only archs that have reported success building qemu. QEMU can launch Linux processes compiled for one CPU on another CPU.
48 lines
1.2 KiB
Plaintext
48 lines
1.2 KiB
Plaintext
$OpenBSD: patch-vl_c,v 1.1.1.1 2005/03/07 16:41:28 todd Exp $
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--- vl.c.orig Thu Feb 10 16:00:06 2005
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+++ vl.c Tue Mar 1 15:53:26 2005
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@@ -42,7 +42,7 @@
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#include <dirent.h>
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#ifdef _BSD
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#include <sys/stat.h>
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-#ifndef __APPLE__
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+#if !defined(__APPLE__) && !defined(__OpenBSD__)
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#include <libutil.h>
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#endif
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#else
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@@ -1574,11 +1574,34 @@ static int tun_open(char *ifname, int if
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char *dev;
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struct stat s;
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+#ifdef __OpenBSD__
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+ int i = 0, enoentcount = 0, err = 0;
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+ char dname[100];
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+
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+ for (; i < 10; i++) {
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+ snprintf(dname, sizeof dname, "%s%d", "/dev/tun", i);
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+ fd = open(dname, O_RDWR);
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+ if (fd >= 0)
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+ break;
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+ else if (errno != ENOENT || ++enoentcount > 3) {
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+ if (errno != EBUSY) {
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+ err = errno;
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+ break;
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+ }
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+ } else
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+ err = errno;
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+ }
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+ if (fd < 0) {
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+ fprintf(stderr, "warning: could not open %s (%s): no virtual network emulation\n", dname, strerror(err));
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+ return -1;
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+ }
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+#else
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fd = open("/dev/tap", O_RDWR);
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if (fd < 0) {
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fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
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return -1;
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}
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+#endif
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fstat(fd, &s);
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dev = devname(s.st_rdev, S_IFCHR);
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