// tries to read exactly one line, until '\n', then overwrites the \n with \0
// bytesread contains the number of bytes read till \n was encountered
// (so 0 in case \n was the first char).
// returns RS_E_OUT_OF_BUFFER if the line doesnt fit into the buffer.
int rocksock_readline(rocksock* sock, char* buffer, size_t bufsize, size_t* bytesread) {
// TODO: make more efficient by peeking into the buffer (Flag MSG_PEEK to recv), instead of reading byte by byte
// would need a different approach for ssl though.
if (!sock) return RS_E_NULL;
if (!buffer || !bufsize || !bytesread)
return rocksock_seterror(sock, RS_ET_OWN, RS_E_NULL,
ROCKSOCK_FILENAME, __LINE__);
char* ptr = buffer;
size_t bytesread2 = 0;
int ret;
*bytesread = 0;
while(*bytesread < bufsize) {
ret = rocksock_recv(sock, ptr, 1, 1, &bytesread2);
if(ret || !bytesread2) return ret;
*bytesread += bytesread2;
if(ptr > buffer + bufsize)
break;
if(*bytesread > bufsize) {
*bytesread = bufsize;
break;
}
if(*ptr == '\n') {
*ptr = 0;
*bytesread -= 1;
return 0;
}
ptr++;
}
return rocksock_seterror(sock, RS_ET_OWN, RS_E_OUT_OF_BUFFER,
ROCKSOCK_FILENAME, __LINE__);
}
int rocksock_ssl_peek(rocksock* sock, int *result) {
char buf[4];
int ret;
ret = SSL_peek(sock->ssl, buf, 1);
if(ret >= 0) *result = 1;
else {
ret = SSL_get_error(sock->ssl, ret);
if(ret == SSL_ERROR_WANT_READ)
return rocksock_seterror(sock, RS_ET_OWN, RS_E_HIT_READTIMEOUT, ROCKSOCK_FILENAME, __LINE__);
return rocksock_seterror(sock, RS_ET_SSL, ret, ROCKSOCK_FILENAME, __LINE__);
}
return rocksock_seterror(sock, RS_ET_OWN, 0, NULL, 0);
}
int rocksock_ssl_connect_fd(rocksock* sock) {
sock->sslctx = SSL_CTX_new(SSLv23_client_method());
if (!sock->sslctx) {
ERR_print_errors_fp(stderr);
return rocksock_seterror(sock, RS_ET_OWN, RS_E_SSL_GENERIC, ROCKSOCK_FILENAME, __LINE__);
}
sock->ssl = SSL_new(sock->sslctx);
if (!sock->ssl) {
ERR_print_errors_fp(stderr);
return rocksock_seterror(sock, RS_ET_OWN, RS_E_SSL_GENERIC, ROCKSOCK_FILENAME, __LINE__);
}
SSL_set_fd(sock->ssl, sock->socket);
int ret = SSL_connect(sock->ssl);
if(ret != 1) {
if((ret = SSL_get_error(sock->ssl, ret)) == SSL_ERROR_WANT_READ)
return rocksock_seterror(sock, RS_ET_OWN, RS_E_HIT_CONNECTTIMEOUT, ROCKSOCK_FILENAME, __LINE__);
//ERR_print_errors_fp(stderr);
//printf("%dxxx\n", SSL_get_error(sock->ssl, ret));
return rocksock_seterror(sock, RS_ET_SSL, ret, ROCKSOCK_FILENAME, __LINE__);
}
return 0;
}
int rocksock_add_proxy(rocksock* sock, rs_proxyType proxytype, const char* host, unsigned short port, const char* username, const char* password) {
rs_proxy* prx;
if (!sock)
return RS_E_NULL;
if(!host)
return rocksock_seterror(sock, RS_ET_OWN, RS_E_NULL, ROCKSOCK_FILENAME, __LINE__);
if(proxytype == RS_PT_SOCKS4 && (username || password))
return rocksock_seterror(sock, RS_ET_OWN, RS_E_SOCKS4_NOAUTH, ROCKSOCK_FILENAME, __LINE__);
if(proxytype == RS_PT_SOCKS5 && ((username && strlen(username) > 255) || (password && strlen(password) > 255)))
return rocksock_seterror(sock, RS_ET_OWN, RS_E_SOCKS5_AUTH_EXCEEDSIZE, ROCKSOCK_FILENAME, __LINE__);
if(!sock->proxies)
return rocksock_seterror(sock, RS_ET_OWN, RS_E_NO_PROXYSTORAGE, ROCKSOCK_FILENAME, __LINE__);
size_t l = strlen(host);
if(l > 255)
return rocksock_seterror(sock, RS_ET_OWN, RS_E_HOSTNAME_TOO_LONG, ROCKSOCK_FILENAME, __LINE__);
sock->lastproxy++;
prx = &sock->proxies[sock->lastproxy];
prx->hostinfo.port = port;
prx->proxytype = proxytype;
memcpy(prx->hostinfo.host, host, l+1);
memcpy(prx->username, username?username:"", username?strlen(username)+1:1);
memcpy(prx->password, password?password:"", password?strlen(password)+1:1);
return rocksock_seterror(sock, RS_ET_OWN, 0, NULL, 0);
}