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c3df91f303
Several places resolve the local hostname into an IP address. Consolidate these into a single function (gethostaddr), and add the function afstest_MyHostAddr, which caches the IP and bails if we can't resolve our hostname. Change-Id: I7f71cd136796e4395c639eed8dd8eb19a7b9beec Reviewed-on: https://gerrit.openafs.org/14802 Reviewed-by: Cheyenne Wills <cwills@sinenomine.net> Tested-by: BuildBot <buildbot@rampaginggeek.com> Reviewed-by: Benjamin Kaduk <kaduk@mit.edu>
133 lines
2.7 KiB
C
133 lines
2.7 KiB
C
#include <afsconfig.h>
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#include <afs/param.h>
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#include <roken.h>
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#include <afs/cellconfig.h>
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#include <rx/rx.h>
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#include <tests/tap/basic.h>
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#include "common.h"
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static afs_uint32
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gethostaddr(void)
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{
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char hostname[256];
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struct hostent *host;
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static afs_uint32 addr = 0;
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if (addr != 0) {
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return addr;
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}
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memset(hostname, 0, sizeof(hostname));
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gethostname(hostname, sizeof(hostname));
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host = gethostbyname(hostname);
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if (host == NULL) {
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diag("gethostbyname(%s) error: %d", hostname, h_errno);
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return 0;
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}
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memcpy(&addr, host->h_addr, sizeof(addr));
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return addr;
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}
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/*!
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* Check if the current machine's hostname resolves to the loopback
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* network.
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*/
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int
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afstest_IsLoopbackNetworkDefault(void)
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{
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afs_uint32 addr = gethostaddr();
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if (addr == 0) {
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skip_all("Can't resolve hostname");
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}
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return(rx_IsLoopbackAddr(ntohl(addr)));
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}
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/*!
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* Skips all TAP tests if the current machine's hostname resolves to the
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* loopback network.
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*/
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int
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afstest_SkipTestsIfLoopbackNetIsDefault(void)
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{
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int retval;
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retval = afstest_IsLoopbackNetworkDefault();
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if (retval == 1) {
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skip_all("Default IP address is on the loopback network!\n");
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}
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return retval;
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}
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/*!
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* Skips all TAP tests if the current machine's hostname can't be resolved
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* to any IP address.
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*/
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void
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afstest_SkipTestsIfBadHostname(void)
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{
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if (gethostaddr() == 0)
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skip_all("Can't resolve hostname");
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}
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/*!
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* Skips all TAP tests if a server is already running on this system.
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*
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* \param name[in] IANA service name, e.g. "afs3-vlserver"
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*/
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void
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afstest_SkipTestsIfServerRunning(char *name)
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{
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afs_int32 code;
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osi_socket sock;
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struct sockaddr_in addr;
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afs_int32 service;
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service = afsconf_FindService(name);
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if (service == -1) {
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fprintf(stderr, "Unknown service name: %s\n", name);
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exit(1);
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}
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sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
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if (sock == OSI_NULLSOCKET) {
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fprintf(stderr, "Failed to get socket file descriptor.\n");
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exit(1);
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}
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addr.sin_family = AF_INET;
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addr.sin_addr.s_addr = htonl(INADDR_ANY);
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addr.sin_port = service; /* Already in network byte order. */
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#ifdef STRUCT_SOCKADDR_HAS_SA_LEN
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addr.sin_len = sizeof(addr);
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#endif
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code = bind(sock, (struct sockaddr *)&addr, sizeof(addr));
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if (code < 0) {
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if (errno == EADDRINUSE) {
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skip_all("Service %s is already running.\n", name);
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} else {
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perror("bind");
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exit(1);
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}
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}
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close(sock);
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}
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/*!
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* Get the IP address of the local machine, for use with mock CellServDBs, etc.
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*
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* @return ipv4 address in net-byte order
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*/
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afs_uint32
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afstest_MyHostAddr(void)
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{
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afs_uint32 addr = gethostaddr();
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if (addr == 0) {
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bail("cannot resolve hostname");
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}
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return addr;
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}
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