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feat: add ENOBUFS (no buff space left) to EAGAIN error behavior

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This commit is contained in:
lohhiiccc 2026-04-22 13:22:33 +02:00
parent f2edfed48b
commit a9bdaf33f2
2 changed files with 12 additions and 7 deletions
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5
src/send/core/send_packet.c
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@ -37,11 +37,12 @@ handle_send_error(struct icmp_handle *h)
int saved_errno; int saved_errno;
saved_errno = errno; saved_errno = errno;
if (EAGAIN == saved_errno || EWOULDBLOCK == saved_errno) if (EAGAIN == saved_errno || EWOULDBLOCK == saved_errno
|| ENOBUFS == saved_errno)
{ {
icmp_set_error_fmt(h, ICMP_ERR_EAGAIN, icmp_set_error_fmt(h, ICMP_ERR_EAGAIN,
"Send would block (buffer full, retry later)"); "Send would block (buffer full, retry later)");
return -1; return 1;
} }
icmp_set_error_fmt(h, ICMP_ERR_SEND, "sendto() failed: %s", icmp_set_error_fmt(h, ICMP_ERR_SEND, "sendto() failed: %s",
strerror(saved_errno)); strerror(saved_errno));

14
src/send/core/send_to_destination.c
View file

@ -7,16 +7,20 @@ int
send_to_destination(struct icmp_handle *h, const void *packet, size_t len, send_to_destination(struct icmp_handle *h, const void *packet, size_t len,
struct in_addr dest, uint8_t ttl) struct in_addr dest, uint8_t ttl)
{ {
struct sockaddr_in addr; struct sockaddr_in addr;
int ret;
if (send_set_socket_ttl(h, ttl) < 0) if (send_set_socket_ttl(h, ttl) < 0)
return -1; return -1;
send_prepare_destination(&addr, dest); send_prepare_destination(&addr, dest);
if (send_packet(h, packet, len, &addr) < 0) ret = send_packet(h, packet, len, &addr);
return -1;
icmp_clear_error(h); switch (ret)
return 0; {
case -1: return -1;
case 1: return 1;
default: icmp_clear_error(h); return 0;
}
} }