https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=218517
--- Comment #16 from emiku...@gmail.com ---
(In reply to Eugene Grosbein from comment #15)
--- a/usr.sbin/ppp/id.c
+++ b/usr.sbin/ppp/id.c
@@ -50,6 +50,7 @@
#include <libutil.h>
#endif
#include <utmpx.h>
+#include <errno.h>
#include "log.h"
#include "main.h"
@@ -93,10 +94,14 @@ int
ID0ioctl(int fd, unsigned long req, void *arg)
{
int ret;
+ int saved_errno;
ID0set0();
ret = ioctl(fd, req, arg);
+ saved_errno = errno;
log_Printf(LogID0, "%d = ioctl(%d, %lu, %p)\n", ret, fd, req, arg);
+ log_Printf(LogID0, "bug 218517: errno = %d (%s)\n", saved_errno,
+ strerror(saved_errno));
ID0setuser();
return ret;
}
Resulting in:
ppp[4390]: tun0: IPV6CP: deflink: LayerUp.
ppp[4390]: tun0: ID0: 2 = socket(28, 2, 0)
ppp[4390]: tun0: ID0: -1 = ioctl(2, 2156423451, 0x7fffffffd790)
ppp[4390]: tun0: ID0: bug 218517: errno = 17 (File exists)
ppp[4390]: tun0: Warning: iface add: ioctl(SIOCAIFADDR_IN6,
fe80::a9df:fac8:17ee:204d -> fe80::5aac:78ff:fe22:8f00): Value too large to be
stored in data type
ppp[4390]: tun0: Error: ipv6cp_InterfaceUp: unable to set ipv6 address
ppp[4390]: tun0: IPV6CP: deflink: LayerDown: fe80::a9df:fac8:17ee:204d
errno must be getting clobbered somewhere between ioctl() and the "iface add"
log line.
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