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sockets: pull code for testing IP availability out of specific test

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The test-io-channel-socket.c file has some useful helper functions for
checking if a specific IP protocol is available. Other tests need to
perform similar kinds of checks to avoid running tests that will fail
due to missing IP protocols.

Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrange 2017-12-22 11:45:24 +00:00 • committed by Daniel P. Berrangé
parent 473a2a331e
commit 9b589ffb12
4 changed files with 145 additions and 71 deletions
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72
tests/test-io-channel-socket.c
View file

@ -22,77 +22,9 @@
#include "io/channel-socket.h"
#include "io/channel-util.h"
#include "io-channel-helpers.h"
#include "socket-helpers.h"
#include "qapi/error.h"
#ifndef AI_ADDRCONFIG
# define AI_ADDRCONFIG 0
#endif
#ifndef EAI_ADDRFAMILY
# define EAI_ADDRFAMILY 0
#endif
static int check_bind(const char *hostname, bool *has_proto)
{
int fd = -1;
struct addrinfo ai, *res = NULL;
int rc;
int ret = -1;
memset(&ai, 0, sizeof(ai));
ai.ai_flags = AI_CANONNAME | AI_ADDRCONFIG;
ai.ai_family = AF_UNSPEC;
ai.ai_socktype = SOCK_STREAM;
/* lookup */
rc = getaddrinfo(hostname, NULL, &ai, &res);
if (rc != 0) {
if (rc == EAI_ADDRFAMILY ||
rc == EAI_FAMILY) {
*has_proto = false;
goto done;
}
goto cleanup;
}
fd = qemu_socket(res->ai_family, res->ai_socktype, res->ai_protocol);
if (fd < 0) {
goto cleanup;
}
if (bind(fd, res->ai_addr, res->ai_addrlen) < 0) {
if (errno == EADDRNOTAVAIL) {
*has_proto = false;
goto done;
}
goto cleanup;
}
*has_proto = true;
done:
ret = 0;
cleanup:
if (fd != -1) {
close(fd);
}
if (res) {
freeaddrinfo(res);
}
return ret;
}
static int check_protocol_support(bool *has_ipv4, bool *has_ipv6)
{
if (check_bind("127.0.0.1", has_ipv4) < 0) {
return -1;
}
if (check_bind("::1", has_ipv6) < 0) {
return -1;
}
return 0;
}
static void test_io_channel_set_socket_bufs(QIOChannel *src,
QIOChannel *dst)
@ -566,7 +498,7 @@ int main(int argc, char **argv)
* each protocol to avoid breaking tests on machines
* with either IPv4 or IPv6 disabled.
*/
if (check_protocol_support(&has_ipv4, &has_ipv6) < 0) {
if (socket_check_protocol_support(&has_ipv4, &has_ipv6) < 0) {
return 1;
}