On Tue, 1 Dec 2020 12:33:06 +0300 Denis Kirjanov wrote:
> in the case of the socket which is bound to an adress
> there is no sense to create a path in the next attempts
>
> here is a program that shows the issue:
>
> int main()
> {
> int s;
> struct sockaddr_un a;
>
> s = socket(AF_UNIX, SOCK_STREAM, 0);
> if (s<0)
> perror("socket() failed\n");
>
> printf("First bind()\n");
>
> memset(&a, 0, sizeof(a));
> a.sun_family = AF_UNIX;
> strncpy(a.sun_path, "/tmp/.first_bind", sizeof(a.sun_path));
>
> if ((bind(s, (const struct sockaddr*) &a, sizeof(a))) == -1)
> perror("bind() failed\n");
>
> printf("Second bind()\n");
>
> memset(&a, 0, sizeof(a));
> a.sun_family = AF_UNIX;
> strncpy(a.sun_path, "/tmp/.first_bind_failed", sizeof(a.sun_path));
>
> if ((bind(s, (const struct sockaddr*) &a, sizeof(a))) == -1)
> perror("bind() failed\n");
> }
>
> kda@SLES15-SP2:~> ./test
> First bind()
> Second bind()
> bind() failed
> : Invalid argument
>
> kda@SLES15-SP2:~> ls -la /tmp/.first_bind
> .first_bind .first_bind_failed
>
> Signed-off-by: Denis Kirjanov <[email protected]>
Is the deadlock fixed by the patch Michal pointed out no longer present?
