/*
** Open a socket connection. The identify of the server is determined
** by pUrlData
**
** pUrlDAta->name Name of the server. Ex: www.fossil-scm.org
** pUrlDAta->port TCP/IP port to use. Ex: 80
**
** Return the number of errors.
*/
int socket_open(UrlData *pUrlData){
int rc = 0;
struct addrinfo *ai = 0;
struct addrinfo *p;
struct addrinfo hints;
char zPort[30];
char zRemote[NI_MAXHOST];
socket_global_init();
memset(&hints, 0, sizeof(struct addrinfo));
assert( iSocket<0 );
hints.ai_family = g.fIPv4 ? AF_INET : AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = IPPROTO_TCP;
sqlite3_snprintf(sizeof(zPort),zPort,"%d", pUrlData->port);
rc = getaddrinfo(pUrlData->name, zPort, &hints, &ai);
if( rc ){
socket_set_errmsg("getaddrinfo() fails: %s", gai_strerror(rc));
goto end_socket_open;
}
for(p=ai; p; p=p->ai_next){
iSocket = socket(p->ai_family, p->ai_socktype, p->ai_protocol);
if( iSocket<0 ) continue;
if( connect(iSocket,p->ai_addr,p->ai_addrlen)<0 ){
socket_close();
continue;
}
rc = getnameinfo(p->ai_addr, p->ai_addrlen, zRemote, sizeof(zRemote),
0, 0, NI_NUMERICHOST);
if( rc ){
socket_set_errmsg("getnameinfo() failed: %s", gai_strerror(rc));
goto end_socket_open;
}
g.zIpAddr = mprintf("%s", zRemote);
break;
}
if( p==0 ){
socket_set_errmsg("cannot connect to host %s:%d", pUrlData->name,
pUrlData->port);
rc = 1;
}
#if !defined(_WIN32)
signal(SIGPIPE, SIG_IGN);
#endif
end_socket_open:
if( rc && iSocket>=0 ) socket_close();
if( ai ) freeaddrinfo(ai);
return rc;
}
/*
** Open a connection to the server. The server is defined by the following
** variables:
**
** pUrlData->name Name of the server. Ex: www.fossil-scm.org
** pUrlData->port TCP/IP port. Ex: 80
** pUrlData->isHttps Use TLS for the connection
**
** Return the number of errors.
*/
int transport_open(UrlData *pUrlData){
int rc = 0;
if( transport.isOpen==0 ){
if( pUrlData->isSsh ){
rc = transport_ssh_open(pUrlData);
if( rc==0 ) transport.isOpen = 1;
}else if( pUrlData->isHttps ){
#ifdef FOSSIL_ENABLE_SSL
rc = ssl_open(pUrlData);
if( rc==0 ) transport.isOpen = 1;
#else
socket_set_errmsg("HTTPS: Fossil has been compiled without SSL support");
rc = 1;
#endif
}else if( pUrlData->isFile ){
sqlite3_uint64 iRandId;
sqlite3_randomness(sizeof(iRandId), &iRandId);
transport.zOutFile = mprintf("%s-%llu-out.http",
g.zRepositoryName, iRandId);
transport.zInFile = mprintf("%s-%llu-in.http",
g.zRepositoryName, iRandId);
transport.pFile = fossil_fopen(transport.zOutFile, "wb");
if( transport.pFile==0 ){
fossil_fatal("cannot output temporary file: %s", transport.zOutFile);
}
transport.isOpen = 1;
}else{
rc = socket_open(pUrlData);
if( rc==0 ) transport.isOpen = 1;
}
}
return rc;
}
/*
** SSH initialization of the transport layer
*/
int transport_ssh_open(UrlData *pUrlData){
/* For SSH we need to create and run SSH fossil http
** to talk to the remote machine.
*/
const char *zSsh; /* The base SSH command */
Blob zCmd; /* The SSH command */
char *zHost; /* The host name to contact */
int n; /* Size of prefix string */
socket_ssh_resolve_addr(pUrlData);
zSsh = db_get("ssh-command", zDefaultSshCmd);
blob_init(&zCmd, zSsh, -1);
if( pUrlData->port!=pUrlData->dfltPort && pUrlData->port ){
#ifdef __MINGW32__
blob_appendf(&zCmd, " -P %d", pUrlData->port);
#else
blob_appendf(&zCmd, " -p %d", pUrlData->port);
#endif
}
if( g.fSshTrace ){
fossil_force_newline();
fossil_print("%s", blob_str(&zCmd)); /* Show the base of the SSH command */
}
if( pUrlData->user && pUrlData->user[0] ){
zHost = mprintf("%s@%s", pUrlData->user, pUrlData->name);
}else{
zHost = mprintf("%s", pUrlData->name);
}
n = blob_size(&zCmd);
blob_append(&zCmd, " ", 1);
shell_escape(&zCmd, zHost);
blob_append(&zCmd, " ", 1);
shell_escape(&zCmd, mprintf("%s", pUrlData->fossil));
blob_append(&zCmd, " test-http", 10);
if( pUrlData->path && pUrlData->path[0] ){
blob_append(&zCmd, " ", 1);
shell_escape(&zCmd, mprintf("%s", pUrlData->path));
}
if( g.fSshTrace ){
fossil_print("%s\n", blob_str(&zCmd)+n); /* Show tail of SSH command */
}
free(zHost);
popen2(blob_str(&zCmd), &sshIn, &sshOut, &sshPid);
if( sshPid==0 ){
socket_set_errmsg("cannot start ssh tunnel using [%b]", &zCmd);
}
blob_reset(&zCmd);
return sshPid==0;
}
/*
** Open a connection to the server. The server is defined by the following
** global variables:
**
** g.urlName Name of the server. Ex: www.fossil-scm.org
** g.urlPort TCP/IP port. Ex: 80
** g.urlIsHttps Use TLS for the connection
**
** Return the number of errors.
*/
int transport_open(void){
int rc = 0;
if( transport.isOpen==0 ){
if( g.urlIsSsh ){
Blob cmd;
blob_zero(&cmd);
shell_escape(&cmd, g.urlFossil);
blob_append(&cmd, " test-http ", -1);
shell_escape(&cmd, g.urlPath);
/* fprintf(stdout, "%s\n", blob_str(&cmd)); */
fprintf(sshOut, "%s\n", blob_str(&cmd));
fflush(sshOut);
blob_reset(&cmd);
}else if( g.urlIsHttps ){
#ifdef FOSSIL_ENABLE_SSL
rc = ssl_open();
if( rc==0 ) transport.isOpen = 1;
#else
socket_set_errmsg("HTTPS: Fossil has been compiled without SSL support");
rc = 1;
#endif
}else if( g.urlIsFile ){
sqlite3_uint64 iRandId;
sqlite3_randomness(sizeof(iRandId), &iRandId);
transport.zOutFile = mprintf("%s-%llu-out.http",
g.zRepositoryName, iRandId);
transport.zInFile = mprintf("%s-%llu-in.http",
g.zRepositoryName, iRandId);
transport.pFile = fopen(transport.zOutFile, "wb");
if( transport.pFile==0 ){
fossil_fatal("cannot output temporary file: %s", transport.zOutFile);
}
transport.isOpen = 1;
}else{
rc = socket_open();
if( rc==0 ) transport.isOpen = 1;
}
}
return rc;
}
