diff options
| -rw-r--r-- | src/basic/errno-util.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/basic/errno-util.h b/src/basic/errno-util.h index 0ca650f48f..383615c288 100644 --- a/src/basic/errno-util.h +++ b/src/basic/errno-util.h @@ -50,7 +50,10 @@ static inline int errno_or_else(int fallback) { /* Hint #1: ENETUNREACH happens if we try to connect to "non-existing" special IP addresses, such as ::5. * * Hint #2: The kernel sends e.g., EHOSTUNREACH or ENONET to userspace in some ICMP error cases. See the - * icmp_err_convert[] in net/ipv4/icmp.c in the kernel sources */ + * icmp_err_convert[] in net/ipv4/icmp.c in the kernel sources. + * + * Hint #3: When asynchronous connect() on TCP fails because the host never acknowledges a single packet, + * kernel tells us that with ETIMEDOUT, see tcp(7). */ static inline bool ERRNO_IS_DISCONNECT(int r) { return IN_SET(abs(r), ECONNABORTED, @@ -66,7 +69,8 @@ static inline bool ERRNO_IS_DISCONNECT(int r) { ENOTCONN, EPIPE, EPROTO, - ESHUTDOWN); + ESHUTDOWN, + ETIMEDOUT); } /* Transient errors we might get on accept() that we should ignore. As per error handling comment in |