#include "tlsproxy.h"
#include "connection.h"
+#include "verify.h"
/* close() */
#include <unistd.h>
#include <poll.h>
/* errno */
#include <errno.h>
-/* va_*() */
-#include <stdarg.h>
-/* pthread_*() */
-#include <pthread.h>
/* Maximum line of a HTTP request line. Longer request lines are aborted with
* should be a good limit to make processing simpler. */
#define MAX_REQUEST_LINE 4096
-/* Helper macro for LOG/LOG_PERROR. Print file/line number if compiled with
- * debug output. */
-#ifdef DEBUG
-#define LOG_PRINT_LOCATION fprintf(stdout, "%s:%-3d ", __FILE__, __LINE__);
-#else
-#define LOG_PRINT_LOCATION
-#endif
-/* Call log_message() and print current file and line number. */
-#define LOG \
- LOG_PRINT_LOCATION \
- log_message
-/* perror() replacement with debug level support. */
-#define LOG_PERROR(level, message) \
- LOG_PRINT_LOCATION \
- log_message(level, "%s: %s", message, strerror(errno))
-
+/* Format string used to send HTTP/1.0 error responses to the client.
+ *
+ * %s is used 4 times, first three are the error code (no %n$s!), the last is
+ * the message. */
+#define HTTP_RESPONSE_FORMAT "HTTP/1.0 %s\r\n\
+Content-Type: text/html; charset=US-ASCII\r\n\
+\r\n\
+<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\n\
+<html>\n\
+<head><title>%s</title></head>\n\
+<body>\n\
+<h1>%s</h1>\n\
+<p>%s</p>\n\
+</body>\n\
+</html>\n"
+
+
+static int initialize_tls_session_client(int peer_socket,
+ const char *hostname,
+ gnutls_session_t *session,
+ gnutls_certificate_credentials_t *x509_cred);
+static int initialize_tls_session_server(int peer_socket,
+ gnutls_session_t *session,
+ gnutls_certificate_credentials_t *x509_cred);
static int read_http_request(FILE *client_fd, char *request, size_t length);
-static void send_close_bad_request(FILE *client_fd);
-static void send_close_forwarding_failure(FILE *client_fd);
+static void send_bad_request(FILE *client_fd);
+static void send_forwarding_failure(FILE *client_fd);
+static void tls_send_invalid_cert_message(gnutls_session_t session);
static void transfer_data(int client, int server);
static int read_from_write_to(int from, int to);
+static void transfer_data_tls(int client, int server,
+ gnutls_session_t client_session,
+ gnutls_session_t server_session);
+static int read_from_write_to_tls(gnutls_session_t from, gnutls_session_t to);
static int connect_to_host(const char *hostname, const char *port);
static int parse_request(const char *buffer, char *host, char *port,
int *version_minor);
-static void log_message(int level, const char *format, ...);
-
void handle_connection(int client_socket) {
int server_socket;
int version_minor;
int result;
+ /* client_x509_cred is used when talking to the client (acting as a TSL
+ * server), server_x509_cred is used when talking to the server (acting as
+ * a TSL client). */
+ gnutls_certificate_credentials_t client_x509_cred, server_x509_cred;
+
+ gnutls_session_t client_session, server_session;
+ /* initialize_tls_session_*() called? - used for goto out */
+ int client_session_init, server_session_init;
+ /* gnutls_handshake() called? - used for goto out */
+ int client_session_started, server_session_started;
+ /* Validation failed? If yes we need to send the special "invalid"
+ * certificate. */
+ int validation_failed;
+
LOG(LOG_DEBUG, "new connection");
+ server_socket = -1;
+ client_fd = NULL;
+ server_fd = NULL;
+ client_session_init = 0;
+ server_session_init = 0;
+ client_session_started = 0;
+ server_session_started = 0;
+ validation_failed = 0;
+
client_fd = fdopen(client_socket, "a+");
if (NULL == client_fd) {
LOG_PERROR(LOG_WARNING, "fdopen(): client failed");
- close(client_socket);
- return;
+ goto out;
}
/* Read request line (CONNECT ..) and headers (they are discarded). */
result = read_http_request(client_fd, buffer, sizeof(buffer));
if (-1 == result) {
- /* Read error, client_fd already closed. */
+ /* Read error. */
LOG(LOG_WARNING, "read_http_request(): client read error");
- return;
+ goto out;
} else if (-2 == result) {
/* EOF */
LOG(LOG_WARNING, "read_http_request(): client EOF");
- send_close_bad_request(client_fd);
- return;
+ send_bad_request(client_fd);
+ goto out;
}
if (0 != parse_request(buffer, host, port, &version_minor)) {
LOG(LOG_WARNING, "bad request: %s", buffer);
- send_close_bad_request(client_fd);
- return;
+ send_bad_request(client_fd);
+ goto out;
}
LOG(LOG_DEBUG, "target: %s:%s (HTTP 1.%d)", host, port, version_minor);
if (-1 == server_socket) {
LOG(LOG_WARNING, "failed to connect to server");
- send_close_forwarding_failure(client_fd);
- return;
+ send_forwarding_failure(client_fd);
+ goto out;
}
server_fd = fdopen(server_socket, "a+");
if (NULL == server_fd) {
LOG_PERROR(LOG_WARNING, "fdopen(): server failed");
- send_close_forwarding_failure(client_fd);
- close(server_socket);
- return;
+ send_forwarding_failure(client_fd);
+ goto out;
}
/* Connect to proxy if requested (command line option). */
/* Read response line from proxy server. */
result = read_http_request(server_fd, buffer, sizeof(buffer));
if (-1 == result) {
- /* Read error, server_fd already closed. */
+ /* Read error. */
LOG(LOG_WARNING, "read_http_request(): proxy read error");
- send_close_forwarding_failure(client_fd);
- return;
+ send_forwarding_failure(client_fd);
+ goto out;
} else if (-2 == result) {
/* EOF */
LOG(LOG_WARNING, "read_http_request(): proxy EOF");
- fclose(server_fd);
- send_close_forwarding_failure(client_fd);
- return;
+ send_forwarding_failure(client_fd);
+ goto out;
}
/* Check response of proxy server. */
if (0 != strncmp(buffer, "HTTP/1.0 200", 12)) {
LOG(LOG_WARNING, "bad proxy response: %s", buffer);
- fclose(server_fd);
- send_close_forwarding_failure(client_fd);
- return;
+ send_forwarding_failure(client_fd);
+ goto out;
}
}
LOG(LOG_DEBUG, "connection to server established");
+ /* If the -u option is used and we don't know this hostname's server
+ * certificate then just pass through the connection and let the client
+ * verify the server certificate. */
+ if (global_passthrough_unknown) {
+ char path[1024];
+ FILE *file = NULL;
+
+ if (-2 == server_certificate_path(&file, host, path, sizeof(path))) {
+ /* We've established a connection, tell the client. */
+ fprintf(client_fd, "HTTP/1.0 200 Connection established\r\n");
+ fprintf(client_fd, "\r\n");
+ fflush(client_fd);
+
+ LOG(LOG_DEBUG, "transferring data");
+
+ /* Proxy data between client and server until one suite is done
+ * (EOF or error). */
+ transfer_data(client_socket, server_socket);
+
+ LOG(LOG_DEBUG, "finished transferring data");
+
+ goto out;
+ }
+ /* server_certificate_path() may open the file, close it. */
+ if (NULL != file) {
+ fclose(file);
+ }
+ }
+
+ result = initialize_tls_session_server(server_socket, &server_session,
+ &server_x509_cred);
+ /* Initialize TLS client credentials to talk to the server. */
+ if (0 != result) {
+ LOG(LOG_WARNING, "initialize_tls_session_server() failed");
+ send_forwarding_failure(client_fd);
+ goto out;
+ }
+ server_session_init = 1;
+
+ LOG(LOG_DEBUG, "starting server TLS handshake");
+
+ /* Try to establish TLS handshake between us and server. */
+ result = gnutls_handshake(server_session);
+ if (GNUTLS_E_SUCCESS != result) {
+ LOG(LOG_WARNING, "server TLS handshake failed: %s",
+ gnutls_strerror(result));
+ send_forwarding_failure(client_fd);
+ goto out;
+ }
+ server_session_started = 1;
+
+ LOG(LOG_DEBUG, "server TLS handshake finished");
+
+ /* Make sure the server certificate is valid and known. */
+ if (0 != verify_tls_connection(server_session, host)) {
+ LOG(LOG_ERROR, "server certificate validation failed!");
+ /* We send the error message over our TLS connection to the client,
+ * but with an invalid certificate. */
+ validation_failed = 1;
+ }
+
+ /* Initialize TLS server credentials to talk to the client. */
+ result = initialize_tls_session_client(client_socket,
+ /* use special host if the server
+ * certificate was invalid */
+ (validation_failed) ? "invalid"
+ : host,
+ &client_session,
+ &client_x509_cred);
+ if (0 != result) {
+ LOG(LOG_WARNING, "initialize_tls_session_client() failed");
+ send_forwarding_failure(client_fd);
+ goto out;
+ }
+ client_session_init = 1;
+
/* We've established a connection, tell the client. */
fprintf(client_fd, "HTTP/1.0 200 Connection established\r\n");
fprintf(client_fd, "\r\n");
fflush(client_fd);
- /* And transfer all data between client and server transparently. */
- transfer_data(client_socket, server_socket);
+ LOG(LOG_DEBUG, "starting client TLS handshake");
- fclose(client_fd);
- fclose(server_fd);
+ /* Try to establish TLS handshake between client and us. */
+ result = gnutls_handshake(client_session);
+ if (GNUTLS_E_SUCCESS != result) {
+ LOG(LOG_WARNING, "client TLS handshake failed: %s",
+ gnutls_strerror(result));
+ send_forwarding_failure(client_fd);
+ goto out;
+ }
+ client_session_started = 1;
+ LOG(LOG_DEBUG, "client TLS handshake finished");
+
+ /* Tell the client that the verification failed. Shouldn't be necessary as
+ * the client should terminate the connection because he received the
+ * invalid certificate but better be sure. */
+ if (validation_failed) {
+ tls_send_invalid_cert_message(client_session);
+ goto out;
+ }
+
+ LOG(LOG_DEBUG, "transferring TLS data");
+
+ /* Proxy data between client and server until one suite is done (EOF or
+ * error). */
+ transfer_data_tls(client_socket, server_socket,
+ client_session, server_session);
+
+ LOG(LOG_DEBUG, "finished transferring TLS data");
+
+out:
+ /* Close TLS sessions if necessary. Use GNUTLS_SHUT_RDWR so the data is
+ * reliable transmitted. */
+ if (0 != server_session_started) {
+ gnutls_bye(server_session, GNUTLS_SHUT_RDWR);
+ }
+ if (0 != client_session_started) {
+ gnutls_bye(client_session, GNUTLS_SHUT_RDWR);
+ }
+ if (0 != server_session_init) {
+ gnutls_deinit(server_session);
+ gnutls_certificate_free_credentials(server_x509_cred);
+ }
+ if (0 != client_session_init) {
+ gnutls_deinit(client_session);
+ gnutls_certificate_free_cas(client_x509_cred);
+ gnutls_certificate_free_keys(client_x509_cred);
+ gnutls_certificate_free_credentials(client_x509_cred);
+ }
+
+ /* Close connection to server/proxy. */
+ if (NULL != server_fd) {
+ fclose(server_fd);
+ } else if (-1 != server_socket) {
+ close(server_socket);
+ }
LOG(LOG_DEBUG, "connection to server closed");
+ /* Close connection to client. */
+ if (NULL != client_fd) {
+ fclose(client_fd);
+ } else {
+ close(client_socket);
+ }
+ LOG(LOG_DEBUG, "connection to client closed");
LOG(LOG_DEBUG, "connection finished");
}
+
+static int initialize_tls_session_client(int peer_socket,
+ const char *hostname,
+ gnutls_session_t *session,
+ gnutls_certificate_credentials_t *x509_cred) {
+ int result;
+ int use_invalid_cert;
+ char path[1024];
+
+ /* The "invalid" hostname is special. If it's used we send an invalid
+ * certificate to let the client know something is wrong. */
+ use_invalid_cert = 0 == strcmp(hostname, "invalid");
+
+ /* Hostname too long. */
+ if (sizeof(path) - strlen(PROXY_SERVER_CERT_FORMAT) <= strlen(hostname)) {
+ LOG(LOG_WARNING,
+ "initialize_tls_session_client(): hostname too long: '%s'",
+ hostname);
+ return -1;
+ }
+ /* Try to prevent path traversals in hostnames. */
+ if (NULL != strstr(hostname, "..")) {
+ LOG(LOG_WARNING,
+ "initialize_tls_session_client(): possible path traversal: '%s'",
+ hostname);
+ return -1;
+ }
+ snprintf(path, sizeof(path), PROXY_SERVER_CERT_FORMAT, hostname);
+
+ result = gnutls_certificate_allocate_credentials(x509_cred);
+ if (GNUTLS_E_SUCCESS != result) {
+ LOG(LOG_ERROR,
+ "initialize_tls_session_client(): \
+gnutls_certificate_allocate_credentials(): %s",
+ gnutls_strerror(result));
+ return -1;
+ }
+
+ /* Load proxy CA file, this CA "list" is send to the client. */
+ if (!use_invalid_cert) {
+ result = gnutls_certificate_set_x509_trust_file(*x509_cred,
+ PROXY_CA_FILE,
+ GNUTLS_X509_FMT_PEM);
+ /* If the invalid hostname was specified do nothing, we use a self-signed
+ * certificate in this case. */
+ } else {
+ result = 1;
+ }
+ if (0 >= result) {
+ LOG(LOG_ERROR,
+ "initialize_tls_session_client(): can't read CA file: '%s'",
+ PROXY_CA_FILE);
+ gnutls_certificate_free_credentials(*x509_cred);
+ return -1;
+ }
+ /* And certificate for this website and proxy's private key. */
+ if (!use_invalid_cert) {
+ result = gnutls_certificate_set_x509_key_file(*x509_cred,
+ path, PROXY_KEY_FILE,
+ GNUTLS_X509_FMT_PEM);
+ /* If the invalid hostname was specified load our special "invalid"
+ * certificate. */
+ } else {
+ result = gnutls_certificate_set_x509_key_file(*x509_cred,
+ PROXY_INVALID_CERT_FILE,
+ PROXY_KEY_FILE,
+ GNUTLS_X509_FMT_PEM);
+ }
+ if (GNUTLS_E_SUCCESS != result) {
+ LOG(LOG_ERROR,
+ "initialize_tls_session_client(): \
+can't read server certificate ('%s') or key file ('%s'): %s",
+ path, PROXY_KEY_FILE, gnutls_strerror(result));
+ gnutls_certificate_free_credentials(*x509_cred);
+ /* Could be a missing certificate. */
+ return -2;
+ }
+
+ gnutls_certificate_set_dh_params(*x509_cred, tls_dh_params);
+
+ result = gnutls_init(session, GNUTLS_SERVER);
+ if (GNUTLS_E_SUCCESS != result) {
+ LOG(LOG_ERROR,
+ "initialize_tls_session_client(): gnutls_init(): %s",
+ gnutls_strerror(result));
+ gnutls_certificate_free_credentials(*x509_cred);
+ return -1;
+ }
+ result = gnutls_priority_set(*session, tls_priority_cache);
+ if (GNUTLS_E_SUCCESS != result) {
+ LOG(LOG_ERROR,
+ "initialize_tls_session_client(): gnutls_priority_set(): %s",
+ gnutls_strerror(result));
+ gnutls_deinit(*session);
+ gnutls_certificate_free_credentials(*x509_cred);
+ return -1;
+ }
+ result = gnutls_credentials_set(*session,
+ GNUTLS_CRD_CERTIFICATE, *x509_cred);
+ if (GNUTLS_E_SUCCESS != result) {
+ LOG(LOG_ERROR,
+ "initialize_tls_session_client(): gnutls_credentials_set(): %s",
+ gnutls_strerror(result));
+ gnutls_deinit(*session);
+ gnutls_certificate_free_credentials(*x509_cred);
+ return -1;
+ }
+
+ gnutls_transport_set_ptr(*session, (gnutls_transport_ptr_t)peer_socket);
+
+ return 0;
+}
+static int initialize_tls_session_server(int peer_socket,
+ gnutls_session_t *session,
+ gnutls_certificate_credentials_t *x509_cred) {
+ int result;
+
+ result = gnutls_certificate_allocate_credentials(x509_cred);
+ if (GNUTLS_E_SUCCESS != result) {
+ LOG(LOG_ERROR,
+ "initialize_tls_session_server(): \
+gnutls_certificate_allocate_credentials(): %s",
+ gnutls_strerror(result));
+ return -1;
+ }
+
+ result = gnutls_init(session, GNUTLS_CLIENT);
+ if (GNUTLS_E_SUCCESS != result) {
+ LOG(LOG_ERROR,
+ "initialize_tls_session_server(): gnutls_init(): %s",
+ gnutls_strerror(result));
+ gnutls_certificate_free_credentials(*x509_cred);
+ return -1;
+ }
+ gnutls_priority_set(*session, tls_priority_cache);
+ if (GNUTLS_E_SUCCESS != result) {
+ LOG(LOG_ERROR,
+ "initialize_tls_session_server(): gnutls_priority_set(): %s",
+ gnutls_strerror(result));
+ gnutls_deinit(*session);
+ gnutls_certificate_free_credentials(*x509_cred);
+ return -1;
+ }
+ result = gnutls_credentials_set(*session,
+ GNUTLS_CRD_CERTIFICATE, *x509_cred);
+ if (GNUTLS_E_SUCCESS != result) {
+ LOG(LOG_ERROR,
+ "initialize_tls_session_server(): gnutls_credentials_set(): %s",
+ gnutls_strerror(result));
+ gnutls_deinit(*session);
+ gnutls_certificate_free_credentials(*x509_cred);
+ return -1;
+ }
+
+ gnutls_transport_set_ptr(*session, (gnutls_transport_ptr_t)peer_socket);
+
+ return 0;
+}
+
+
/* Read HTTP request line and headers (ignored).
*
- * On success 0 is returned, -1 on client error (we close client descriptor in
- * this case), -2 on unexpected EOF.
+ * On success 0 is returned, -1 on client error, -2 on unexpected EOF.
*/
static int read_http_request(FILE *client_fd, char *request, size_t length) {
char buffer[MAX_REQUEST_LINE];
if (NULL == fgets(request, (int)length, client_fd)) {
if (ferror(client_fd)) {
LOG_PERROR(LOG_WARNING, "read_http_request(): fgets()");
- fclose(client_fd);
return -1;
}
}
if (ferror(client_fd)) {
LOG_PERROR(LOG_WARNING, "read_http_request(): fgets()");
- fclose(client_fd);
return -1;
}
return 0;
}
-static void send_close_bad_request(FILE *client_fd) {
- fprintf(client_fd, "HTTP/1.0 400 Bad Request\r\n");
- fprintf(client_fd, "\r\n");
- fclose(client_fd);
+static void send_bad_request(FILE *client_fd) {
+#define RESPONSE_ERROR "400 Bad Request"
+#define RESPONSE_MSG "Your browser sent an invalid request."
+ fprintf(client_fd, HTTP_RESPONSE_FORMAT,
+ RESPONSE_ERROR, RESPONSE_ERROR, RESPONSE_ERROR,
+ RESPONSE_MSG);
+#undef RESPONSE_ERROR
+#undef RESPONSE_MSG
}
-static void send_close_forwarding_failure(FILE *client_fd) {
- fprintf(client_fd, "HTTP/1.0 503 Forwarding failure\r\n");
- fprintf(client_fd, "\r\n");
- fclose(client_fd);
+static void send_forwarding_failure(FILE *client_fd) {
+#define RESPONSE_ERROR "503 Forwarding failure"
+#define RESPONSE_MSG "Failed to connect to server, check logs."
+ fprintf(client_fd, HTTP_RESPONSE_FORMAT,
+ RESPONSE_ERROR, RESPONSE_ERROR, RESPONSE_ERROR,
+ RESPONSE_MSG);
+#undef RESPONSE_ERROR
+#undef RESPONSE_MSG
+}
+static void tls_send_invalid_cert_message(gnutls_session_t session) {
+#define RESPONSE_ERROR "500 Internal Server Error"
+#define RESPONSE_MSG "Server certificate validation failed, check logs."
+
+ char buffer[sizeof(HTTP_RESPONSE_FORMAT) - 1 /* '\0' */
+ - 4 * 2 /* four %s */
+ + (sizeof(RESPONSE_ERROR) - 1 /* '\0' */) * 3
+ + sizeof(RESPONSE_MSG) - 1 /* '\0' */
+ + 1 /* '\0' */];
+
+ snprintf(buffer, sizeof(buffer),
+ HTTP_RESPONSE_FORMAT,
+ RESPONSE_ERROR, RESPONSE_ERROR, RESPONSE_ERROR, RESPONSE_MSG);
+
+ gnutls_record_send(session, buffer, sizeof(buffer) - 1);
+ /* don't send trailing '\0' */
+#undef RESPONSE_ERROR
+#undef RESPONSE_MSG
}
ssize_t size_written;
char buffer[4096];
+ LOG(LOG_DEBUG, "read_from_write_to(): %d -> %d", from, to);
+
size_read = read(from, buffer, sizeof(buffer));
if (0 > size_read) {
LOG_PERROR(LOG_WARNING, "read_from_write_to(): read()");
return 0;
}
+/* Transfer data between client and server TLS connection until one closes the
+ * connection. */
+static void transfer_data_tls(int client, int server,
+ gnutls_session_t client_session,
+ gnutls_session_t server_session) {
+ struct pollfd fds[2];
+ fds[0].fd = client;
+ fds[0].events = POLLIN | POLLPRI | POLLHUP | POLLERR;
+ fds[0].revents = 0;
+ fds[1].fd = server;
+ fds[1].events = POLLIN | POLLPRI | POLLHUP | POLLERR;
+ fds[1].revents = 0;
+
+ for (;;) {
+ int result = poll(fds, 2, -1 /* no timeout */);
+ if (result < 0) {
+ LOG_PERROR(LOG_ERROR, "transfer_data(): poll()");
+ return;
+ }
+
+ /* Data available from client. */
+ if (fds[0].revents & POLLIN || fds[0].revents & POLLPRI) {
+ if (0 != read_from_write_to_tls(client_session, server_session)) {
+ /* EOF (or other error) */
+ break;
+ }
+ }
+ /* Data available from server. */
+ if (fds[1].revents & POLLIN || fds[1].revents & POLLPRI) {
+ if (0 != read_from_write_to_tls(server_session, client_session)) {
+ /* EOF (or other error) */
+ break;
+ }
+ }
+
+ /* Client closed connection. */
+ if (fds[0].revents & POLLERR || fds[0].revents & POLLHUP) {
+ break;
+ }
+ /* Server closed connection. */
+ if (fds[1].revents & POLLERR || fds[1].revents & POLLHUP) {
+ break;
+ }
+ }
+}
+
+/* Read available data from session from and write to session to. */
+static int read_from_write_to_tls(gnutls_session_t from,
+ gnutls_session_t to) {
+ size_t size;
+ ssize_t size_read;
+ ssize_t size_written;
+ char buffer[16384];
+
+ /* Get maximum possible buffer size. */
+ size = gnutls_record_get_max_size(from);
+ LOG(LOG_DEBUG, "read_from_write_to_tls(): suggested buffer size: %ld",
+ (long int)size);
+ if (size > gnutls_record_get_max_size(to)) {
+ size = gnutls_record_get_max_size(to);
+ }
+ if (size > sizeof(buffer)) {
+ size = sizeof(buffer);
+ }
+ LOG(LOG_DEBUG, "read_from_write_to_tls(): used buffer size: %ld",
+ (long int)size);
+
+ size_read = gnutls_record_recv(from, buffer, size);
+ if (0 > size_read) {
+ LOG(LOG_WARNING, "read_from_write_to_tls(): gnutls_record_recv(): %s",
+ gnutls_strerror((int)size_read));
+ return -1;
+ }
+ /* EOF */
+ if (0 == size_read) {
+ return -1;
+ }
+
+ size_written = gnutls_record_send(to, buffer, (size_t)size_read);
+ if (0 > size_written) {
+ LOG(LOG_WARNING, "read_from_write_to_tls(): gnutls_record_send(): %s",
+ gnutls_strerror((int)size_written));
+ return -1;
+ }
+ if (size_read != size_written) {
+ LOG(LOG_ERROR, "read_from_write_to_tls(): only written %ld of %ld bytes!",
+ (long int)size_written, (long int)size_read);
+ return -1;
+ }
+
+ return 0;
+}
+
static int connect_to_host(const char *hostname, const char *port) {
struct addrinfo gai_hints;
return 0;
}
-
-
-static void log_message(int level, const char *format, ...) {
- va_list ap;
- const char *level_string;
-
- if (global_log_level < level) {
- return;
- }
-
- switch (level) {
- case LOG_ERROR: level_string = "ERROR"; break;
- case LOG_WARNING: level_string = "WARNING"; break;
- case LOG_DEBUG: level_string = "DEBUG"; break;
- default: level_string = "UNKNOWN";
- }
-
- va_start(ap, format);
- fprintf(stdout, "[%s] [%d] ", level_string, (int)pthread_self());
- vfprintf(stdout, format, ap);
- fprintf(stdout, "\n");
- va_end(ap);
-}
ruderich.org/simon / tlsproxy / tlsproxy.git / blobdiff