X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/5dcadbf4edc474a0e55a3caaa3604ed06b6a3926..cfe6acff2ddc7eb03b3489770219edf829abd323:/test/src/client.c diff --git a/test/src/client.c b/test/src/client.c index de36ef065..9beaf25bb 100644 --- a/test/src/client.c +++ b/test/src/client.c @@ -36,6 +36,9 @@ ripped from the openssl ocsp and s_client utilities. */ #include #include +/* Set to TRUE to enable debug output */ +#define DEBUG if (FALSE) + #ifdef AF_INET6 #define HAVE_IPV6 1 #endif @@ -294,7 +297,7 @@ if (rc <= 0) return 0; } -printf("SSL connection using %s\n", SSL_get_cipher (*ssl)); +/* printf("SSL connection using %s\n", SSL_get_cipher (*ssl)); */ return 1; } @@ -566,42 +569,86 @@ while (fgets(CS outbuffer, sizeof(outbuffer), f) != NULL) nextinput: if (*inptr == 0) /* Refill input buffer */ { + unsigned char *inbufferp = inbuffer; + alarm(timeout); - if (srv->tls_active) - { + for (;;) + { + if (srv->tls_active) + { #ifdef HAVE_OPENSSL - int error; - rc = SSL_read(srv->ssl, inbuffer, bsiz - 1); - if (rc <= 0) - switch (error = SSL_get_error(srv->ssl, rc)) - { - case SSL_ERROR_ZERO_RETURN: - break; - case SSL_ERROR_SYSCALL: - printf("%s\n", ERR_error_string(ERR_get_error(), NULL)); break; - rc = -1; - case SSL_ERROR_SSL: - printf("%s\n", ERR_error_string(ERR_get_error(), NULL)); break; - SSL_shutdown(srv->ssl); - SSL_free(srv->ssl); - srv->tls_active = FALSE; - goto nextinput; - default: - printf("SSL error code %d\n", error); - } - + int error; + DEBUG { printf("call SSL_read\n"); fflush(stdout); } + rc = SSL_read(srv->ssl, inbufferp, bsiz - (inbufferp - inbuffer) - 1); + DEBUG { printf("SSL_read: %d\n", rc); fflush(stdout); } + if (rc <= 0) + switch (error = SSL_get_error(srv->ssl, rc)) + { + case SSL_ERROR_ZERO_RETURN: + break; + case SSL_ERROR_SYSCALL: + printf("%s\n", ERR_error_string(ERR_get_error(), NULL)); + rc = -1; + break; + case SSL_ERROR_SSL: + printf("%s\nTLS terminated\n", ERR_error_string(ERR_get_error(), NULL)); + SSL_shutdown(srv->ssl); + SSL_free(srv->ssl); + srv->tls_active = FALSE; + { /* OpenSSL leaves it in restartsys mode */ + struct sigaction act = {.sa_handler = sigalrm_handler_flag, .sa_flags = 0}; + sigalrm_seen = 1; + sigaction(SIGALRM, &act, NULL); + } + *inptr = 0; + DEBUG { printf("go round\n"); fflush(stdout); } + goto nextinput; + default: + printf("SSL error code %d\n", error); + } #endif #ifdef HAVE_GNUTLS - rc = gnutls_record_recv(tls_session, CS inbuffer, bsiz - 1); + retry1: + DEBUG { printf("call gnutls_record_recv\n"); fflush(stdout); } + rc = gnutls_record_recv(tls_session, CS inbufferp, bsiz - (inbufferp - inbuffer) - 1); + if (rc < 0) + { + DEBUG { printf("gnutls_record_recv: %s\n", gnutls_strerror(rc)); fflush(stdout); } + if (rc == GNUTLS_E_INTERRUPTED || rc == GNUTLS_E_AGAIN) + goto retry1; + printf("%s\n", gnutls_strerror(rc)); + srv->tls_active = FALSE; + *inptr = 0; + DEBUG { printf("go round\n"); fflush(stdout); } + goto nextinput; + } + DEBUG { printf("gnutls_record_recv: %d\n", rc); fflush(stdout); } #endif - } - else - rc = read(srv->sock, inbuffer, bsiz); + } + else + { + DEBUG { printf("call read\n"); fflush(stdout); } + rc = read(srv->sock, inbufferp, bsiz - (inbufferp - inbuffer) - 1); + DEBUG { printf("read: %d\n", rc); fflush(stdout); } + } + + if (rc > 0) inbufferp[rc] = '\0'; + if (rc <= 0 || strchr(inbufferp, '\n')) break; + inbufferp += rc; + if (inbufferp >= inbuffer + bsiz) + { + printf("Input buffer overrun, need more than %d bytes input buffer\n", bsiz); + exit(73); + } + DEBUG { printf("read more\n"); } + } alarm(0); if (rc < 0) { - printf("Read error %s\n", strerror(errno)); + if (errno == EINTR && sigalrm_seen && resp_optional) + continue; /* next scriptline */ + printf("Read error: %s\n", strerror(errno)); exit(81); } else if (rc == 0) @@ -625,11 +672,9 @@ nextinput: exit(74); } else - { - inbuffer[rc] = 0; inptr = inbuffer; - } } + DEBUG { printf("read: '%s'\n", inptr); fflush(stdout); } lineptr = inptr; while (*inptr != 0 && *inptr != '\r' && *inptr != '\n') inptr++; @@ -652,12 +697,19 @@ nextinput: exit(79); } - /* input matched script */ + /* Input matched script. Output the inputline, unless optional */ + DEBUG { printf("read matched\n"); fflush(stdout); } + + if (!resp_optional) + printf("<<< %s\n", lineptr); + else - if (resp_optional) - goto nextinput; /* consume inputline, not scriptline */ + /* If there is further input after this line, consume inputline but not + scriptline in case there are several matching. Nonmatches are dealt with + above. */ - printf("<<< %s\n", lineptr); + if (*inptr != 0) + goto nextinput; #ifdef HAVE_TLS if (srv->sent_starttls) @@ -676,6 +728,9 @@ nextinput: #ifdef HAVE_GNUTLS { int rc; + fd_set rfd; + struct timeval tv = { 0, 2000 }; + sigalrm_seen = FALSE; alarm(timeout); do { @@ -685,6 +740,25 @@ nextinput: alarm(0); if (!srv->tls_active) printf("%s\n", gnutls_strerror(rc)); + + /* look for an error on the TLS conn */ + FD_ZERO(&rfd); + FD_SET(srv->sock, &rfd); + if (select(srv->sock+1, &rfd, NULL, NULL, &tv) > 0) + { + retry2: + DEBUG { printf("call gnutls_record_recv\n"); fflush(stdout); } + rc = gnutls_record_recv(tls_session, CS inbuffer, bsiz - 1); + if (rc < 0) + { + DEBUG { printf("gnutls_record_recv: %s\n", gnutls_strerror(rc)); fflush(stdout); } + if (rc == GNUTLS_E_INTERRUPTED || rc == GNUTLS_E_AGAIN) + goto retry2; + printf("%s\n", gnutls_strerror(rc)); + srv->tls_active = FALSE; + } + DEBUG { printf("gnutls_record_recv: %d\n", rc); fflush(stdout); } + } } #endif @@ -915,7 +989,7 @@ struct sockaddr_in6 s_in6; srv_ctx srv; -unsigned char inbuffer[10240]; +unsigned char inbuffer[100 * 1024]; unsigned char *inptr = inbuffer; *inptr = 0; /* Buffer empty */ @@ -1105,14 +1179,30 @@ if (interface != NULL) #if HAVE_IPV6 if (host_af == AF_INET6) { +# ifdef HAVE_GETADDRINFO + struct addrinfo hints, *res; + memset(&hints, 0, sizeof(hints)); + hints.ai_family = AF_INET6; + hints.ai_socktype = SOCK_STREAM; + hints.ai_flags = AI_NUMERICHOST; + if ((rc = getaddrinfo(address, NULL, &hints, &res)) != 0 || res == NULL) + { + printf("unable to parse \"%s\" as an IP address: %s\n", address, + rc == 0 ? "NULL result returned" : gai_strerror(rc)); + exit(86); + } + memcpy(&s_in6, res->ai_addr, res->ai_addrlen); + freeaddrinfo(res); +# else memset(&s_in6, 0, sizeof(s_in6)); s_in6.sin6_family = AF_INET6; - s_in6.sin6_port = htons(port); if (inet_pton(host_af, address, &s_in6.sin6_addr) != 1) { printf("Unable to parse \"%s\"", address); exit(86); } +# endif + s_in6.sin6_port = htons(port); } else #endif @@ -1144,6 +1234,13 @@ if (rc < 0) exit(85); } +#ifdef TCP_QUICKACK + { + int off = 0; + (void) setsockopt(srv.sock, IPPROTO_TCP, TCP_QUICKACK, US &off, sizeof(off)); + } +#endif + printf("connected\n");