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TCP based clients try all results of name resolution until a connection succeeded

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This commit is contained in:
Gerhard Rieger 2023-10-22 23:15:49 +02:00
parent 2a9623d61c
commit cb6e16b360
16 changed files with 456 additions and 262 deletions

9
xio-socket.c
View file

@ -541,6 +541,7 @@ int xioopen_socket_recvfrom(int argc, const char *argv[], struct opt *opts,
if (retropt_string(opts, OPT_RANGE, &rangename) >= 0) {
if (xioparserange(rangename, 0, &xfd->para.socket.range) < 0) {
free(rangename);
return STAT_NORETRY;
}
xfd->para.socket.dorange = true;
@ -619,6 +620,7 @@ int xioopen_socket_recv(int argc, const char *argv[], struct opt *opts,
if (retropt_string(opts, OPT_RANGE, &rangename) >= 0) {
if (xioparserange(rangename, 0, &xfd->para.socket.range) < 0) {
free(rangename);
return STAT_NORETRY;
}
xfd->para.socket.dorange = true;
@ -1167,8 +1169,7 @@ int _xioopen_dgram_recvfrom(struct single *xfd, int xioflags,
/* for generic sockets, this has already been retrieved */
if (retropt_string(opts, OPT_RANGE, &rangename) >= 0) {
if (xioparserange(rangename, pf, &xfd->para.socket.range)
< 0) {
if (xioparserange(rangename, pf, &xfd->para.socket.range) < 0) {
free(rangename);
return STAT_NORETRY;
}
@ -1370,8 +1371,7 @@ int _xioopen_dgram_recv(struct single *xfd, int xioflags,
#if WITH_IP4 /*|| WITH_IP6*/
if (retropt_string(opts, OPT_RANGE, &rangename) >= 0) {
if (xioparserange(rangename, pf, &xfd->para.socket.range)
< 0) {
if (xioparserange(rangename, pf, &xfd->para.socket.range) < 0) {
free(rangename);
return STAT_NORETRY;
}
@ -1890,6 +1890,7 @@ int xioparsenetwork(const char *rangename, int pf, struct xiorange *range) {
int xioparserange(const char *rangename, int pf, struct xiorange *range) {
int i;
if (xioparsenetwork(rangename, pf, range) < 0) {
Error2("failed to parse or resolve range \"%s\" (pf=%d)", rangename, pf);
return -1;
}
/* we have parsed the address and mask; now we make sure that the stored