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errno: ETIMEDOUT is also a connection error

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This commit is contained in:
Lennart Poettering 2020-11-06 14:30:25 +01:00
parent ea394d48cc
commit 8d50c14252
1 changed files with 6 additions and 2 deletions
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8
src/basic/errno-util.h
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@ -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