git: b3e677d58b7a - stable/13 - wpa_supplicant: Handle systems without INET (legacy IP) support

The branch stable/13 has been updated by cy:

URL: https://cgit.FreeBSD.org/src/commit/?id=b3e677d58b7a3247d213456e05389586da82195e

commit b3e677d58b7a3247d213456e05389586da82195e
Author:     Marek Zarychta <zarychtam@plan-b.pwste.edu.pl>
AuthorDate: 2025-04-28 00:02:04 +0000
Commit:     Cy Schubert <cy@FreeBSD.org>
CommitDate: 2025-05-11 04:49:59 +0000

    wpa_supplicant: Handle systems without INET (legacy IP) support
    
    Currently, wpa_supplicant fails when legacy IP support is disabled
    in FreeBSD (i.e., the world built with WITHOUT_INET and nooptions
    INET in the kernel config). The proposed patch allows running
    wpa_supplicant and connecting to wireless networks without INET
    support when INET6 is available.
    
    Reviewed by:            cy, adrian, philip, roy_marples.name
    Differential Revision:  https://reviews.freebsd.org/D49959
    
    (cherry picked from commit 8c7149c73f8f2301369f271c98470b72973b0c01)
---
 contrib/wpa/src/drivers/driver_bsd.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/contrib/wpa/src/drivers/driver_bsd.c b/contrib/wpa/src/drivers/driver_bsd.c
index 5f734b737184..e5ff319637c0 100644
--- a/contrib/wpa/src/drivers/driver_bsd.c
+++ b/contrib/wpa/src/drivers/driver_bsd.c
@@ -1769,9 +1769,19 @@ bsd_global_init(void *ctx)
 
 	global->sock = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
 	if (global->sock < 0) {
+	    if (errno == EAFNOSUPPORT) {
+		wpa_printf(MSG_INFO, "INET not supported, trying INET6...");
+		global->sock = socket(PF_INET6, SOCK_DGRAM | SOCK_CLOEXEC, 0);
+		if (global->sock < 0) {
+		    wpa_printf(MSG_ERROR, "socket[PF_INET6,SOCK_DGRAM]: %s",
+			       strerror(errno));
+		    goto fail1;
+		}
+	    } else {
 		wpa_printf(MSG_ERROR, "socket[PF_INET,SOCK_DGRAM]: %s",
 			   strerror(errno));
 		goto fail1;
+	    }
 	}
 
 	global->route = socket(PF_ROUTE,