1/* Licensed to the Apache Software Foundation (ASF) under one or more
2 * contributor license agreements.  See the NOTICE file distributed with
3 * this work for additional information regarding copyright ownership.
4 * The ASF licenses this file to You under the Apache License, Version 2.0
5 * (the "License"); you may not use this file except in compliance with
6 * the License.  You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17/*
18   ** This program is based on ZeusBench V1.0 written by Adam Twiss
19   ** which is Copyright (c) 1996 by Zeus Technology Ltd. http://www.zeustech.net/
20   **
21   ** This software is provided "as is" and any express or implied waranties,
22   ** including but not limited to, the implied warranties of merchantability and
23   ** fitness for a particular purpose are disclaimed.  In no event shall
24   ** Zeus Technology Ltd. be liable for any direct, indirect, incidental, special,
25   ** exemplary, or consequential damaged (including, but not limited to,
26   ** procurement of substitute good or services; loss of use, data, or profits;
27   ** or business interruption) however caused and on theory of liability.  Whether
28   ** in contract, strict liability or tort (including negligence or otherwise)
29   ** arising in any way out of the use of this software, even if advised of the
30   ** possibility of such damage.
31   **
32 */
33
34/*
35   ** HISTORY:
36   **    - Originally written by Adam Twiss <adam@zeus.co.uk>, March 1996
37   **      with input from Mike Belshe <mbelshe@netscape.com> and
38   **      Michael Campanella <campanella@stevms.enet.dec.com>
39   **    - Enhanced by Dean Gaudet <dgaudet@apache.org>, November 1997
40   **    - Cleaned up by Ralf S. Engelschall <rse@apache.org>, March 1998
41   **    - POST and verbosity by Kurt Sussman <kls@merlot.com>, August 1998
42   **    - HTML table output added by David N. Welton <davidw@prosa.it>, January 1999
43   **    - Added Cookie, Arbitrary header and auth support. <dirkx@webweaving.org>, April 1999
44   ** Version 1.3d
45   **    - Increased version number - as some of the socket/error handling has
46   **      fundamentally changed - and will give fundamentally different results
47   **      in situations where a server is dropping requests. Therefore you can
48   **      no longer compare results of AB as easily. Hence the inc of the version.
49   **      They should be closer to the truth though. Sander & <dirkx@covalent.net>, End 2000.
50   **    - Fixed proxy functionality, added median/mean statistics, added gnuplot
51   **      output option, added _experimental/rudimentary_ SSL support. Added
52   **      confidence guestimators and warnings. Sander & <dirkx@covalent.net>, End 2000
53   **    - Fixed serious int overflow issues which would cause realistic (longer
54   **      than a few minutes) run's to have wrong (but believable) results. Added
55   **      trapping of connection errors which influenced measurements.
56   **      Contributed by Sander Temme, Early 2001
57   ** Version 1.3e
58   **    - Changed timeout behavour during write to work whilst the sockets
59   **      are filling up and apr_write() does writes a few - but not all.
60   **      This will potentially change results. <dirkx@webweaving.org>, April 2001
61   ** Version 2.0.36-dev
62   **    Improvements to concurrent processing:
63   **      - Enabled non-blocking connect()s.
64   **      - Prevent blocking calls to apr_socket_recv() (thereby allowing AB to
65   **        manage its entire set of socket descriptors).
66   **      - Any error returned from apr_socket_recv() that is not EAGAIN or EOF
67   **        is now treated as fatal.
68   **      Contributed by Aaron Bannert, April 24, 2002
69   **
70   ** Version 2.0.36-2
71   **     Internalized the version string - this string is part
72   **     of the Agent: header and the result output.
73   **
74   ** Version 2.0.37-dev
75   **     Adopted SSL code by Madhu Mathihalli <madhusudan_mathihalli@hp.com>
76   **     [PATCH] ab with SSL support  Posted Wed, 15 Aug 2001 20:55:06 GMT
77   **     Introduces four 'if (int == value)' tests per non-ssl request.
78   **
79   ** Version 2.0.40-dev
80   **     Switched to the new abstract pollset API, allowing ab to
81   **     take advantage of future apr_pollset_t scalability improvements.
82   **     Contributed by Brian Pane, August 31, 2002
83   **
84   ** Version 2.3
85   **     SIGINT now triggers output_results().
86   **     Contributed by colm, March 30, 2006
87   **/
88
89/* Note: this version string should start with \d+[\d\.]* and be a valid
90 * string for an HTTP Agent: header when prefixed with 'ApacheBench/'.
91 * It should reflect the version of AB - and not that of the apache server
92 * it happens to accompany. And it should be updated or changed whenever
93 * the results are no longer fundamentally comparable to the results of
94 * a previous version of ab. Either due to a change in the logic of
95 * ab - or to due to a change in the distribution it is compiled with
96 * (such as an APR change in for example blocking).
97 */
98#define AP_AB_BASEREVISION "2.3"
99
100/*
101 * BUGS:
102 *
103 * - uses strcpy/etc.
104 * - has various other poor buffer attacks related to the lazy parsing of
105 *   response headers from the server
106 * - doesn't implement much of HTTP/1.x, only accepts certain forms of
107 *   responses
108 * - (performance problem) heavy use of strstr shows up top in profile
109 *   only an issue for loopback usage
110 */
111
112/*  -------------------------------------------------------------------- */
113
114#if 'A' != 0x41
115/* Hmmm... This source code isn't being compiled in ASCII.
116 * In order for data that flows over the network to make
117 * sense, we need to translate to/from ASCII.
118 */
119#define NOT_ASCII
120#endif
121
122/* affects include files on Solaris */
123#define BSD_COMP
124
125#include "apr.h"
126#include "apr_signal.h"
127#include "apr_strings.h"
128#include "apr_network_io.h"
129#include "apr_file_io.h"
130#include "apr_time.h"
131#include "apr_getopt.h"
132#include "apr_general.h"
133#include "apr_lib.h"
134#include "apr_portable.h"
135#include "ap_release.h"
136#include "apr_poll.h"
137
138#define APR_WANT_STRFUNC
139#include "apr_want.h"
140
141#include "apr_base64.h"
142#ifdef NOT_ASCII
143#include "apr_xlate.h"
144#endif
145#if APR_HAVE_STDIO_H
146#include <stdio.h>
147#endif
148#if APR_HAVE_STDLIB_H
149#include <stdlib.h>
150#endif
151#if APR_HAVE_UNISTD_H
152#include <unistd.h> /* for getpid() */
153#endif
154
155#if !defined(WIN32) && !defined(NETWARE)
156#include "ap_config_auto.h"
157#endif
158
159#if defined(HAVE_OPENSSL)
160
161#include <openssl/rsa.h>
162#include <openssl/crypto.h>
163#include <openssl/x509.h>
164#include <openssl/pem.h>
165#include <openssl/err.h>
166#include <openssl/ssl.h>
167#include <openssl/rand.h>
168#define USE_SSL
169#define SK_NUM(x) sk_X509_num(x)
170#define SK_VALUE(x,y) sk_X509_value(x,y)
171typedef STACK_OF(X509) X509_STACK_TYPE;
172
173#endif
174
175#if defined(USE_SSL)
176#if (OPENSSL_VERSION_NUMBER >= 0x00909000)
177#define AB_SSL_METHOD_CONST const
178#else
179#define AB_SSL_METHOD_CONST
180#endif
181#if (OPENSSL_VERSION_NUMBER >= 0x0090707f)
182#define AB_SSL_CIPHER_CONST const
183#else
184#define AB_SSL_CIPHER_CONST
185#endif
186#ifdef SSL_OP_NO_TLSv1_2
187#define HAVE_TLSV1_X
188#endif
189#endif
190
191#include <math.h>
192#if APR_HAVE_CTYPE_H
193#include <ctype.h>
194#endif
195#if APR_HAVE_LIMITS_H
196#include <limits.h>
197#endif
198
199/* ------------------- DEFINITIONS -------------------------- */
200
201#ifndef LLONG_MAX
202#define AB_MAX APR_INT64_C(0x7fffffffffffffff)
203#else
204#define AB_MAX LLONG_MAX
205#endif
206
207/* maximum number of requests on a time limited test */
208#define MAX_REQUESTS (INT_MAX > 50000 ? 50000 : INT_MAX)
209
210/* connection state
211 * don't add enums or rearrange or otherwise change values without
212 * visiting set_conn_state()
213 */
214typedef enum {
215    STATE_UNCONNECTED = 0,
216    STATE_CONNECTING,           /* TCP connect initiated, but we don't
217                                 * know if it worked yet
218                                 */
219    STATE_CONNECTED,            /* we know TCP connect completed */
220    STATE_READ
221} connect_state_e;
222
223#define CBUFFSIZE (2048)
224
225struct connection {
226    apr_pool_t *ctx;
227    apr_socket_t *aprsock;
228    apr_pollfd_t pollfd;
229    int state;
230    apr_size_t read;            /* amount of bytes read */
231    apr_size_t bread;           /* amount of body read */
232    apr_size_t rwrite, rwrote;  /* keep pointers in what we write - across
233                                 * EAGAINs */
234    apr_size_t length;          /* Content-Length value used for keep-alive */
235    char cbuff[CBUFFSIZE];      /* a buffer to store server response header */
236    int cbx;                    /* offset in cbuffer */
237    int keepalive;              /* non-zero if a keep-alive request */
238    int gotheader;              /* non-zero if we have the entire header in
239                                 * cbuff */
240    apr_time_t start,           /* Start of connection */
241               connect,         /* Connected, start writing */
242               endwrite,        /* Request written */
243               beginread,       /* First byte of input */
244               done;            /* Connection closed */
245
246    int socknum;
247#ifdef USE_SSL
248    SSL *ssl;
249#endif
250};
251
252struct data {
253    apr_time_t starttime;         /* start time of connection */
254    apr_interval_time_t waittime; /* between request and reading response */
255    apr_interval_time_t ctime;    /* time to connect */
256    apr_interval_time_t time;     /* time for connection */
257};
258
259#define ap_min(a,b) (((a)<(b))?(a):(b))
260#define ap_max(a,b) (((a)>(b))?(a):(b))
261#define ap_round_ms(a) ((apr_time_t)((a) + 500)/1000)
262#define ap_double_ms(a) ((double)(a)/1000.0)
263#define MAX_CONCURRENCY 20000
264
265/* --------------------- GLOBALS ---------------------------- */
266
267int verbosity = 0;      /* no verbosity by default */
268int recverrok = 0;      /* ok to proceed after socket receive errors */
269enum {NO_METH = 0, GET, HEAD, PUT, POST} method = NO_METH;
270const char *method_str[] = {"bug", "GET", "HEAD", "PUT", "POST"};
271int send_body = 0;      /* non-zero if sending body with request */
272int requests = 1;       /* Number of requests to make */
273int heartbeatres = 100; /* How often do we say we're alive */
274int concurrency = 1;    /* Number of multiple requests to make */
275int percentile = 1;     /* Show percentile served */
276int nolength = 0;		/* Accept variable document length */
277int confidence = 1;     /* Show confidence estimator and warnings */
278int tlimit = 0;         /* time limit in secs */
279int keepalive = 0;      /* try and do keepalive connections */
280int windowsize = 0;     /* we use the OS default window size */
281char servername[1024];  /* name that server reports */
282char *hostname;         /* host name from URL */
283const char *host_field;       /* value of "Host:" header field */
284const char *path;             /* path name */
285char *postdata;         /* *buffer containing data from postfile */
286apr_size_t postlen = 0; /* length of data to be POSTed */
287char *content_type = NULL;     /* content type to put in POST header */
288const char *cookie,           /* optional cookie line */
289           *auth,             /* optional (basic/uuencoded) auhentication */
290           *hdrs;             /* optional arbitrary headers */
291apr_port_t port;        /* port number */
292char *proxyhost = NULL; /* proxy host name */
293int proxyport = 0;      /* proxy port */
294const char *connecthost;
295const char *myhost;
296apr_port_t connectport;
297const char *gnuplot;          /* GNUplot file */
298const char *csvperc;          /* CSV Percentile file */
299const char *fullurl;
300const char *colonhost;
301int isproxy = 0;
302apr_interval_time_t aprtimeout = apr_time_from_sec(30); /* timeout value */
303
304/* overrides for ab-generated common headers */
305int opt_host = 0;       /* was an optional "Host:" header specified? */
306int opt_useragent = 0;  /* was an optional "User-Agent:" header specified? */
307int opt_accept = 0;     /* was an optional "Accept:" header specified? */
308 /*
309  * XXX - this is now a per read/write transact type of value
310  */
311
312int use_html = 0;       /* use html in the report */
313const char *tablestring;
314const char *trstring;
315const char *tdstring;
316
317apr_size_t doclen = 0;     /* the length the document should be */
318apr_int64_t totalread = 0;    /* total number of bytes read */
319apr_int64_t totalbread = 0;   /* totoal amount of entity body read */
320apr_int64_t totalposted = 0;  /* total number of bytes posted, inc. headers */
321int started = 0;           /* number of requests started, so no excess */
322int done = 0;              /* number of requests we have done */
323int doneka = 0;            /* number of keep alive connections done */
324int good = 0, bad = 0;     /* number of good and bad requests */
325int epipe = 0;             /* number of broken pipe writes */
326int err_length = 0;        /* requests failed due to response length */
327int err_conn = 0;          /* requests failed due to connection drop */
328int err_recv = 0;          /* requests failed due to broken read */
329int err_except = 0;        /* requests failed due to exception */
330int err_response = 0;      /* requests with invalid or non-200 response */
331
332#ifdef USE_SSL
333int is_ssl;
334SSL_CTX *ssl_ctx;
335char *ssl_cipher = NULL;
336char *ssl_info = NULL;
337BIO *bio_out,*bio_err;
338#endif
339
340apr_time_t start, lasttime, stoptime;
341
342/* global request (and its length) */
343char _request[2048];
344char *request = _request;
345apr_size_t reqlen;
346
347/* one global throw-away buffer to read stuff into */
348char buffer[8192];
349
350/* interesting percentiles */
351int percs[] = {50, 66, 75, 80, 90, 95, 98, 99, 100};
352
353struct connection *con;     /* connection array */
354struct data *stats;         /* data for each request */
355apr_pool_t *cntxt;
356
357apr_pollset_t *readbits;
358
359apr_sockaddr_t *mysa;
360apr_sockaddr_t *destsa;
361
362#ifdef NOT_ASCII
363apr_xlate_t *from_ascii, *to_ascii;
364#endif
365
366static void write_request(struct connection * c);
367static void close_connection(struct connection * c);
368
369/* --------------------------------------------------------- */
370
371/* simple little function to write an error string and exit */
372
373static void err(const char *s)
374{
375    fprintf(stderr, "%s\n", s);
376    if (done)
377        printf("Total of %d requests completed\n" , done);
378    exit(1);
379}
380
381/* simple little function to write an APR error string and exit */
382
383static void apr_err(const char *s, apr_status_t rv)
384{
385    char buf[120];
386
387    fprintf(stderr,
388        "%s: %s (%d)\n",
389        s, apr_strerror(rv, buf, sizeof buf), rv);
390    if (done)
391        printf("Total of %d requests completed\n" , done);
392    exit(rv);
393}
394
395static void *xmalloc(size_t size)
396{
397    void *ret = malloc(size);
398    if (ret == NULL) {
399        fprintf(stderr, "Could not allocate memory (%"
400                APR_SIZE_T_FMT" bytes)\n", size);
401        exit(1);
402    }
403    return ret;
404}
405
406static void *xcalloc(size_t num, size_t size)
407{
408    void *ret = calloc(num, size);
409    if (ret == NULL) {
410        fprintf(stderr, "Could not allocate memory (%"
411                APR_SIZE_T_FMT" bytes)\n", size*num);
412        exit(1);
413    }
414    return ret;
415}
416
417static char *xstrdup(const char *s)
418{
419    char *ret = strdup(s);
420    if (ret == NULL) {
421        fprintf(stderr, "Could not allocate memory (%"
422                APR_SIZE_T_FMT " bytes)\n", strlen(s));
423        exit(1);
424    }
425    return ret;
426}
427
428/* pool abort function */
429static int abort_on_oom(int retcode)
430{
431    fprintf(stderr, "Could not allocate memory\n");
432    exit(1);
433    /* not reached */
434    return retcode;
435}
436
437static void set_polled_events(struct connection *c, apr_int16_t new_reqevents)
438{
439    apr_status_t rv;
440
441    if (c->pollfd.reqevents != new_reqevents) {
442        if (c->pollfd.reqevents != 0) {
443            rv = apr_pollset_remove(readbits, &c->pollfd);
444            if (rv != APR_SUCCESS) {
445                apr_err("apr_pollset_remove()", rv);
446            }
447        }
448
449        if (new_reqevents != 0) {
450            c->pollfd.reqevents = new_reqevents;
451            rv = apr_pollset_add(readbits, &c->pollfd);
452            if (rv != APR_SUCCESS) {
453                apr_err("apr_pollset_add()", rv);
454            }
455        }
456    }
457}
458
459static void set_conn_state(struct connection *c, connect_state_e new_state)
460{
461    apr_int16_t events_by_state[] = {
462        0,           /* for STATE_UNCONNECTED */
463        APR_POLLOUT, /* for STATE_CONNECTING */
464        APR_POLLIN,  /* for STATE_CONNECTED; we don't poll in this state,
465                      * so prepare for polling in the following state --
466                      * STATE_READ
467                      */
468        APR_POLLIN   /* for STATE_READ */
469    };
470
471    c->state = new_state;
472
473    set_polled_events(c, events_by_state[new_state]);
474}
475
476/* --------------------------------------------------------- */
477/* write out request to a connection - assumes we can write
478 * (small) request out in one go into our new socket buffer
479 *
480 */
481#ifdef USE_SSL
482static long ssl_print_cb(BIO *bio,int cmd,const char *argp,int argi,long argl,long ret)
483{
484    BIO *out;
485
486    out=(BIO *)BIO_get_callback_arg(bio);
487    if (out == NULL) return(ret);
488
489    if (cmd == (BIO_CB_READ|BIO_CB_RETURN)) {
490        BIO_printf(out,"read from %p [%p] (%d bytes => %ld (0x%lX))\n",
491                   bio, argp, argi, ret, ret);
492        BIO_dump(out,(char *)argp,(int)ret);
493        return(ret);
494    }
495    else if (cmd == (BIO_CB_WRITE|BIO_CB_RETURN)) {
496        BIO_printf(out,"write to %p [%p] (%d bytes => %ld (0x%lX))\n",
497                   bio, argp, argi, ret, ret);
498        BIO_dump(out,(char *)argp,(int)ret);
499    }
500    return ret;
501}
502
503static void ssl_state_cb(const SSL *s, int w, int r)
504{
505    if (w & SSL_CB_ALERT) {
506        BIO_printf(bio_err, "SSL/TLS Alert [%s] %s:%s\n",
507                   (w & SSL_CB_READ ? "read" : "write"),
508                   SSL_alert_type_string_long(r),
509                   SSL_alert_desc_string_long(r));
510    } else if (w & SSL_CB_LOOP) {
511        BIO_printf(bio_err, "SSL/TLS State [%s] %s\n",
512                   (SSL_in_connect_init((SSL*)s) ? "connect" : "-"),
513                   SSL_state_string_long(s));
514    } else if (w & (SSL_CB_HANDSHAKE_START|SSL_CB_HANDSHAKE_DONE)) {
515        BIO_printf(bio_err, "SSL/TLS Handshake [%s] %s\n",
516                   (w & SSL_CB_HANDSHAKE_START ? "Start" : "Done"),
517                   SSL_state_string_long(s));
518    }
519}
520
521#ifndef RAND_MAX
522#define RAND_MAX INT_MAX
523#endif
524
525static int ssl_rand_choosenum(int l, int h)
526{
527    int i;
528    char buf[50];
529
530    srand((unsigned int)time(NULL));
531    apr_snprintf(buf, sizeof(buf), "%.0f",
532                 (((double)(rand()%RAND_MAX)/RAND_MAX)*(h-l)));
533    i = atoi(buf)+1;
534    if (i < l) i = l;
535    if (i > h) i = h;
536    return i;
537}
538
539static void ssl_rand_seed(void)
540{
541    int n, l;
542    time_t t;
543    pid_t pid;
544    unsigned char stackdata[256];
545
546    /*
547     * seed in the current time (usually just 4 bytes)
548     */
549    t = time(NULL);
550    l = sizeof(time_t);
551    RAND_seed((unsigned char *)&t, l);
552
553    /*
554     * seed in the current process id (usually just 4 bytes)
555     */
556    pid = getpid();
557    l = sizeof(pid_t);
558    RAND_seed((unsigned char *)&pid, l);
559
560    /*
561     * seed in some current state of the run-time stack (128 bytes)
562     */
563    n = ssl_rand_choosenum(0, sizeof(stackdata)-128-1);
564    RAND_seed(stackdata+n, 128);
565}
566
567static int ssl_print_connection_info(BIO *bio, SSL *ssl)
568{
569    AB_SSL_CIPHER_CONST SSL_CIPHER *c;
570    int alg_bits,bits;
571
572    BIO_printf(bio,"Transport Protocol      :%s\n", SSL_get_version(ssl));
573
574    c = SSL_get_current_cipher(ssl);
575    BIO_printf(bio,"Cipher Suite Protocol   :%s\n", SSL_CIPHER_get_version(c));
576    BIO_printf(bio,"Cipher Suite Name       :%s\n",SSL_CIPHER_get_name(c));
577
578    bits = SSL_CIPHER_get_bits(c,&alg_bits);
579    BIO_printf(bio,"Cipher Suite Cipher Bits:%d (%d)\n",bits,alg_bits);
580
581    return(1);
582}
583
584static void ssl_print_cert_info(BIO *bio, X509 *cert)
585{
586    X509_NAME *dn;
587    EVP_PKEY *pk;
588    char buf[1024];
589
590    BIO_printf(bio, "Certificate version: %ld\n", X509_get_version(cert)+1);
591    BIO_printf(bio,"Valid from: ");
592    ASN1_UTCTIME_print(bio, X509_get_notBefore(cert));
593    BIO_printf(bio,"\n");
594
595    BIO_printf(bio,"Valid to  : ");
596    ASN1_UTCTIME_print(bio, X509_get_notAfter(cert));
597    BIO_printf(bio,"\n");
598
599    pk = X509_get_pubkey(cert);
600    BIO_printf(bio,"Public key is %d bits\n",
601               EVP_PKEY_bits(pk));
602    EVP_PKEY_free(pk);
603
604    dn = X509_get_issuer_name(cert);
605    X509_NAME_oneline(dn, buf, sizeof(buf));
606    BIO_printf(bio,"The issuer name is %s\n", buf);
607
608    dn=X509_get_subject_name(cert);
609    X509_NAME_oneline(dn, buf, sizeof(buf));
610    BIO_printf(bio,"The subject name is %s\n", buf);
611
612    /* dump the extension list too */
613    BIO_printf(bio, "Extension Count: %d\n", X509_get_ext_count(cert));
614}
615
616static void ssl_print_info(struct connection *c)
617{
618    X509_STACK_TYPE *sk;
619    X509 *cert;
620    int count;
621
622    BIO_printf(bio_err, "\n");
623    sk = SSL_get_peer_cert_chain(c->ssl);
624    if ((count = SK_NUM(sk)) > 0) {
625        int i;
626        for (i=1; i<count; i++) {
627            cert = (X509 *)SK_VALUE(sk, i);
628            ssl_print_cert_info(bio_out, cert);
629    }
630    }
631    cert = SSL_get_peer_certificate(c->ssl);
632    if (cert == NULL) {
633        BIO_printf(bio_out, "Anon DH\n");
634    } else {
635        BIO_printf(bio_out, "Peer certificate\n");
636        ssl_print_cert_info(bio_out, cert);
637        X509_free(cert);
638    }
639    ssl_print_connection_info(bio_err,c->ssl);
640    SSL_SESSION_print(bio_err, SSL_get_session(c->ssl));
641    }
642
643static void ssl_proceed_handshake(struct connection *c)
644{
645    int do_next = 1;
646
647    while (do_next) {
648        int ret, ecode;
649
650        ret = SSL_do_handshake(c->ssl);
651        ecode = SSL_get_error(c->ssl, ret);
652
653        switch (ecode) {
654        case SSL_ERROR_NONE:
655            if (verbosity >= 2)
656                ssl_print_info(c);
657            if (ssl_info == NULL) {
658                AB_SSL_CIPHER_CONST SSL_CIPHER *ci;
659                X509 *cert;
660                int sk_bits, pk_bits, swork;
661
662                ci = SSL_get_current_cipher(c->ssl);
663                sk_bits = SSL_CIPHER_get_bits(ci, &swork);
664                cert = SSL_get_peer_certificate(c->ssl);
665                if (cert)
666                    pk_bits = EVP_PKEY_bits(X509_get_pubkey(cert));
667                else
668                    pk_bits = 0;  /* Anon DH */
669
670                ssl_info = xmalloc(128);
671                apr_snprintf(ssl_info, 128, "%s,%s,%d,%d",
672                             SSL_get_version(c->ssl),
673                             SSL_CIPHER_get_name(ci),
674                             pk_bits, sk_bits);
675            }
676            write_request(c);
677            do_next = 0;
678            break;
679        case SSL_ERROR_WANT_READ:
680            set_polled_events(c, APR_POLLIN);
681            do_next = 0;
682            break;
683        case SSL_ERROR_WANT_WRITE:
684            /* Try again */
685            do_next = 1;
686            break;
687        case SSL_ERROR_WANT_CONNECT:
688        case SSL_ERROR_SSL:
689        case SSL_ERROR_SYSCALL:
690            /* Unexpected result */
691            BIO_printf(bio_err, "SSL handshake failed (%d).\n", ecode);
692            ERR_print_errors(bio_err);
693            close_connection(c);
694            do_next = 0;
695            break;
696        }
697    }
698}
699
700#endif /* USE_SSL */
701
702static void write_request(struct connection * c)
703{
704    if (started >= requests) {
705        return;
706    }
707
708    do {
709        apr_time_t tnow;
710        apr_size_t l = c->rwrite;
711        apr_status_t e = APR_SUCCESS; /* prevent gcc warning */
712
713        tnow = lasttime = apr_time_now();
714
715        /*
716         * First time round ?
717         */
718        if (c->rwrite == 0) {
719            apr_socket_timeout_set(c->aprsock, 0);
720            c->connect = tnow;
721            c->rwrote = 0;
722            c->rwrite = reqlen;
723            if (send_body)
724                c->rwrite += postlen;
725        }
726        else if (tnow > c->connect + aprtimeout) {
727            printf("Send request timed out!\n");
728            close_connection(c);
729            return;
730        }
731
732#ifdef USE_SSL
733        if (c->ssl) {
734            apr_size_t e_ssl;
735            e_ssl = SSL_write(c->ssl,request + c->rwrote, l);
736            if (e_ssl != l) {
737                BIO_printf(bio_err, "SSL write failed - closing connection\n");
738                ERR_print_errors(bio_err);
739                close_connection (c);
740                return;
741            }
742            l = e_ssl;
743            e = APR_SUCCESS;
744        }
745        else
746#endif
747            e = apr_socket_send(c->aprsock, request + c->rwrote, &l);
748
749        if (e != APR_SUCCESS && !APR_STATUS_IS_EAGAIN(e)) {
750            epipe++;
751            printf("Send request failed!\n");
752            close_connection(c);
753            return;
754        }
755        totalposted += l;
756        c->rwrote += l;
757        c->rwrite -= l;
758    } while (c->rwrite);
759
760    c->endwrite = lasttime = apr_time_now();
761    started++;
762    set_conn_state(c, STATE_READ);
763}
764
765/* --------------------------------------------------------- */
766
767/* calculate and output results */
768
769static int compradre(struct data * a, struct data * b)
770{
771    if ((a->ctime) < (b->ctime))
772        return -1;
773    if ((a->ctime) > (b->ctime))
774        return +1;
775    return 0;
776}
777
778static int comprando(struct data * a, struct data * b)
779{
780    if ((a->time) < (b->time))
781        return -1;
782    if ((a->time) > (b->time))
783        return +1;
784    return 0;
785}
786
787static int compri(struct data * a, struct data * b)
788{
789    apr_interval_time_t p = a->time - a->ctime;
790    apr_interval_time_t q = b->time - b->ctime;
791    if (p < q)
792        return -1;
793    if (p > q)
794        return +1;
795    return 0;
796}
797
798static int compwait(struct data * a, struct data * b)
799{
800    if ((a->waittime) < (b->waittime))
801        return -1;
802    if ((a->waittime) > (b->waittime))
803        return 1;
804    return 0;
805}
806
807static void output_results(int sig)
808{
809    double timetaken;
810
811    if (sig) {
812        lasttime = apr_time_now();  /* record final time if interrupted */
813    }
814    timetaken = (double) (lasttime - start) / APR_USEC_PER_SEC;
815
816    printf("\n\n");
817    printf("Server Software:        %s\n", servername);
818    printf("Server Hostname:        %s\n", hostname);
819    printf("Server Port:            %hu\n", port);
820#ifdef USE_SSL
821    if (is_ssl && ssl_info) {
822        printf("SSL/TLS Protocol:       %s\n", ssl_info);
823    }
824#endif
825    printf("\n");
826    printf("Document Path:          %s\n", path);
827    if (nolength)
828        printf("Document Length:        Variable\n");
829    else
830        printf("Document Length:        %" APR_SIZE_T_FMT " bytes\n", doclen);
831    printf("\n");
832    printf("Concurrency Level:      %d\n", concurrency);
833    printf("Time taken for tests:   %.3f seconds\n", timetaken);
834    printf("Complete requests:      %d\n", done);
835    printf("Failed requests:        %d\n", bad);
836    if (bad)
837        printf("   (Connect: %d, Receive: %d, Length: %d, Exceptions: %d)\n",
838            err_conn, err_recv, err_length, err_except);
839    if (epipe)
840        printf("Write errors:           %d\n", epipe);
841    if (err_response)
842        printf("Non-2xx responses:      %d\n", err_response);
843    if (keepalive)
844        printf("Keep-Alive requests:    %d\n", doneka);
845    printf("Total transferred:      %" APR_INT64_T_FMT " bytes\n", totalread);
846    if (send_body)
847        printf("Total body sent:        %" APR_INT64_T_FMT "\n",
848               totalposted);
849    printf("HTML transferred:       %" APR_INT64_T_FMT " bytes\n", totalbread);
850
851    /* avoid divide by zero */
852    if (timetaken && done) {
853        printf("Requests per second:    %.2f [#/sec] (mean)\n",
854               (double) done / timetaken);
855        printf("Time per request:       %.3f [ms] (mean)\n",
856               (double) concurrency * timetaken * 1000 / done);
857        printf("Time per request:       %.3f [ms] (mean, across all concurrent requests)\n",
858               (double) timetaken * 1000 / done);
859        printf("Transfer rate:          %.2f [Kbytes/sec] received\n",
860               (double) totalread / 1024 / timetaken);
861        if (send_body) {
862            printf("                        %.2f kb/s sent\n",
863               (double) totalposted / 1024 / timetaken);
864            printf("                        %.2f kb/s total\n",
865               (double) (totalread + totalposted) / 1024 / timetaken);
866        }
867    }
868
869    if (done > 0) {
870        /* work out connection times */
871        int i;
872        apr_time_t totalcon = 0, total = 0, totald = 0, totalwait = 0;
873        apr_time_t meancon, meantot, meand, meanwait;
874        apr_interval_time_t mincon = AB_MAX, mintot = AB_MAX, mind = AB_MAX,
875                            minwait = AB_MAX;
876        apr_interval_time_t maxcon = 0, maxtot = 0, maxd = 0, maxwait = 0;
877        apr_interval_time_t mediancon = 0, mediantot = 0, mediand = 0, medianwait = 0;
878        double sdtot = 0, sdcon = 0, sdd = 0, sdwait = 0;
879
880        for (i = 0; i < done; i++) {
881            struct data *s = &stats[i];
882            mincon = ap_min(mincon, s->ctime);
883            mintot = ap_min(mintot, s->time);
884            mind = ap_min(mind, s->time - s->ctime);
885            minwait = ap_min(minwait, s->waittime);
886
887            maxcon = ap_max(maxcon, s->ctime);
888            maxtot = ap_max(maxtot, s->time);
889            maxd = ap_max(maxd, s->time - s->ctime);
890            maxwait = ap_max(maxwait, s->waittime);
891
892            totalcon += s->ctime;
893            total += s->time;
894            totald += s->time - s->ctime;
895            totalwait += s->waittime;
896        }
897        meancon = totalcon / done;
898        meantot = total / done;
899        meand = totald / done;
900        meanwait = totalwait / done;
901
902        /* calculating the sample variance: the sum of the squared deviations, divided by n-1 */
903        for (i = 0; i < done; i++) {
904            struct data *s = &stats[i];
905            double a;
906            a = ((double)s->time - meantot);
907            sdtot += a * a;
908            a = ((double)s->ctime - meancon);
909            sdcon += a * a;
910            a = ((double)s->time - (double)s->ctime - meand);
911            sdd += a * a;
912            a = ((double)s->waittime - meanwait);
913            sdwait += a * a;
914        }
915
916        sdtot = (done > 1) ? sqrt(sdtot / (done - 1)) : 0;
917        sdcon = (done > 1) ? sqrt(sdcon / (done - 1)) : 0;
918        sdd = (done > 1) ? sqrt(sdd / (done - 1)) : 0;
919        sdwait = (done > 1) ? sqrt(sdwait / (done - 1)) : 0;
920
921        /*
922         * XXX: what is better; this hideous cast of the compradre function; or
923         * the four warnings during compile ? dirkx just does not know and
924         * hates both/
925         */
926        qsort(stats, done, sizeof(struct data),
927              (int (*) (const void *, const void *)) compradre);
928        if ((done > 1) && (done % 2))
929            mediancon = (stats[done / 2].ctime + stats[done / 2 + 1].ctime) / 2;
930        else
931            mediancon = stats[done / 2].ctime;
932
933        qsort(stats, done, sizeof(struct data),
934              (int (*) (const void *, const void *)) compri);
935        if ((done > 1) && (done % 2))
936            mediand = (stats[done / 2].time + stats[done / 2 + 1].time \
937            -stats[done / 2].ctime - stats[done / 2 + 1].ctime) / 2;
938        else
939            mediand = stats[done / 2].time - stats[done / 2].ctime;
940
941        qsort(stats, done, sizeof(struct data),
942              (int (*) (const void *, const void *)) compwait);
943        if ((done > 1) && (done % 2))
944            medianwait = (stats[done / 2].waittime + stats[done / 2 + 1].waittime) / 2;
945        else
946            medianwait = stats[done / 2].waittime;
947
948        qsort(stats, done, sizeof(struct data),
949              (int (*) (const void *, const void *)) comprando);
950        if ((done > 1) && (done % 2))
951            mediantot = (stats[done / 2].time + stats[done / 2 + 1].time) / 2;
952        else
953            mediantot = stats[done / 2].time;
954
955        printf("\nConnection Times (ms)\n");
956        /*
957         * Reduce stats from apr time to milliseconds
958         */
959        mincon     = ap_round_ms(mincon);
960        mind       = ap_round_ms(mind);
961        minwait    = ap_round_ms(minwait);
962        mintot     = ap_round_ms(mintot);
963        meancon    = ap_round_ms(meancon);
964        meand      = ap_round_ms(meand);
965        meanwait   = ap_round_ms(meanwait);
966        meantot    = ap_round_ms(meantot);
967        mediancon  = ap_round_ms(mediancon);
968        mediand    = ap_round_ms(mediand);
969        medianwait = ap_round_ms(medianwait);
970        mediantot  = ap_round_ms(mediantot);
971        maxcon     = ap_round_ms(maxcon);
972        maxd       = ap_round_ms(maxd);
973        maxwait    = ap_round_ms(maxwait);
974        maxtot     = ap_round_ms(maxtot);
975        sdcon      = ap_double_ms(sdcon);
976        sdd        = ap_double_ms(sdd);
977        sdwait     = ap_double_ms(sdwait);
978        sdtot      = ap_double_ms(sdtot);
979
980        if (confidence) {
981#define CONF_FMT_STRING "%5" APR_TIME_T_FMT " %4" APR_TIME_T_FMT " %5.1f %6" APR_TIME_T_FMT " %7" APR_TIME_T_FMT "\n"
982            printf("              min  mean[+/-sd] median   max\n");
983            printf("Connect:    " CONF_FMT_STRING,
984                   mincon, meancon, sdcon, mediancon, maxcon);
985            printf("Processing: " CONF_FMT_STRING,
986                   mind, meand, sdd, mediand, maxd);
987            printf("Waiting:    " CONF_FMT_STRING,
988                   minwait, meanwait, sdwait, medianwait, maxwait);
989            printf("Total:      " CONF_FMT_STRING,
990                   mintot, meantot, sdtot, mediantot, maxtot);
991#undef CONF_FMT_STRING
992
993#define     SANE(what,mean,median,sd) \
994              { \
995                double d = (double)mean - median; \
996                if (d < 0) d = -d; \
997                if (d > 2 * sd ) \
998                    printf("ERROR: The median and mean for " what " are more than twice the standard\n" \
999                           "       deviation apart. These results are NOT reliable.\n"); \
1000                else if (d > sd ) \
1001                    printf("WARNING: The median and mean for " what " are not within a normal deviation\n" \
1002                           "        These results are probably not that reliable.\n"); \
1003            }
1004            SANE("the initial connection time", meancon, mediancon, sdcon);
1005            SANE("the processing time", meand, mediand, sdd);
1006            SANE("the waiting time", meanwait, medianwait, sdwait);
1007            SANE("the total time", meantot, mediantot, sdtot);
1008        }
1009        else {
1010            printf("              min   avg   max\n");
1011#define CONF_FMT_STRING "%5" APR_TIME_T_FMT " %5" APR_TIME_T_FMT "%5" APR_TIME_T_FMT "\n"
1012            printf("Connect:    " CONF_FMT_STRING, mincon, meancon, maxcon);
1013            printf("Processing: " CONF_FMT_STRING, mind, meand, maxd);
1014            printf("Waiting:    " CONF_FMT_STRING, minwait, meanwait, maxwait);
1015            printf("Total:      " CONF_FMT_STRING, mintot, meantot, maxtot);
1016#undef CONF_FMT_STRING
1017        }
1018
1019
1020        /* Sorted on total connect times */
1021        if (percentile && (done > 1)) {
1022            printf("\nPercentage of the requests served within a certain time (ms)\n");
1023            for (i = 0; i < sizeof(percs) / sizeof(int); i++) {
1024                if (percs[i] <= 0)
1025                    printf(" 0%%  <0> (never)\n");
1026                else if (percs[i] >= 100)
1027                    printf(" 100%%  %5" APR_TIME_T_FMT " (longest request)\n",
1028                           ap_round_ms(stats[done - 1].time));
1029                else
1030                    printf("  %d%%  %5" APR_TIME_T_FMT "\n", percs[i],
1031                           ap_round_ms(stats[(int) (done * percs[i] / 100)].time));
1032            }
1033        }
1034        if (csvperc) {
1035            FILE *out = fopen(csvperc, "w");
1036            if (!out) {
1037                perror("Cannot open CSV output file");
1038                exit(1);
1039            }
1040            fprintf(out, "" "Percentage served" "," "Time in ms" "\n");
1041            for (i = 0; i < 100; i++) {
1042                double t;
1043                if (i == 0)
1044                    t = ap_double_ms(stats[0].time);
1045                else if (i == 100)
1046                    t = ap_double_ms(stats[done - 1].time);
1047                else
1048                    t = ap_double_ms(stats[(int) (0.5 + done * i / 100.0)].time);
1049                fprintf(out, "%d,%.3f\n", i, t);
1050            }
1051            fclose(out);
1052        }
1053        if (gnuplot) {
1054            FILE *out = fopen(gnuplot, "w");
1055            char tmstring[APR_CTIME_LEN];
1056            if (!out) {
1057                perror("Cannot open gnuplot output file");
1058                exit(1);
1059            }
1060            fprintf(out, "starttime\tseconds\tctime\tdtime\tttime\twait\n");
1061            for (i = 0; i < done; i++) {
1062                (void) apr_ctime(tmstring, stats[i].starttime);
1063                fprintf(out, "%s\t%" APR_TIME_T_FMT "\t%" APR_TIME_T_FMT
1064                               "\t%" APR_TIME_T_FMT "\t%" APR_TIME_T_FMT
1065                               "\t%" APR_TIME_T_FMT "\n", tmstring,
1066                        apr_time_sec(stats[i].starttime),
1067                        ap_round_ms(stats[i].ctime),
1068                        ap_round_ms(stats[i].time - stats[i].ctime),
1069                        ap_round_ms(stats[i].time),
1070                        ap_round_ms(stats[i].waittime));
1071            }
1072            fclose(out);
1073        }
1074    }
1075
1076    if (sig) {
1077        exit(1);
1078    }
1079}
1080
1081/* --------------------------------------------------------- */
1082
1083/* calculate and output results in HTML  */
1084
1085static void output_html_results(void)
1086{
1087    double timetaken = (double) (lasttime - start) / APR_USEC_PER_SEC;
1088
1089    printf("\n\n<table %s>\n", tablestring);
1090    printf("<tr %s><th colspan=2 %s>Server Software:</th>"
1091       "<td colspan=2 %s>%s</td></tr>\n",
1092       trstring, tdstring, tdstring, servername);
1093    printf("<tr %s><th colspan=2 %s>Server Hostname:</th>"
1094       "<td colspan=2 %s>%s</td></tr>\n",
1095       trstring, tdstring, tdstring, hostname);
1096    printf("<tr %s><th colspan=2 %s>Server Port:</th>"
1097       "<td colspan=2 %s>%hu</td></tr>\n",
1098       trstring, tdstring, tdstring, port);
1099    printf("<tr %s><th colspan=2 %s>Document Path:</th>"
1100       "<td colspan=2 %s>%s</td></tr>\n",
1101       trstring, tdstring, tdstring, path);
1102    if (nolength)
1103        printf("<tr %s><th colspan=2 %s>Document Length:</th>"
1104            "<td colspan=2 %s>Variable</td></tr>\n",
1105            trstring, tdstring, tdstring);
1106    else
1107        printf("<tr %s><th colspan=2 %s>Document Length:</th>"
1108            "<td colspan=2 %s>%" APR_SIZE_T_FMT " bytes</td></tr>\n",
1109            trstring, tdstring, tdstring, doclen);
1110    printf("<tr %s><th colspan=2 %s>Concurrency Level:</th>"
1111       "<td colspan=2 %s>%d</td></tr>\n",
1112       trstring, tdstring, tdstring, concurrency);
1113    printf("<tr %s><th colspan=2 %s>Time taken for tests:</th>"
1114       "<td colspan=2 %s>%.3f seconds</td></tr>\n",
1115       trstring, tdstring, tdstring, timetaken);
1116    printf("<tr %s><th colspan=2 %s>Complete requests:</th>"
1117       "<td colspan=2 %s>%d</td></tr>\n",
1118       trstring, tdstring, tdstring, done);
1119    printf("<tr %s><th colspan=2 %s>Failed requests:</th>"
1120       "<td colspan=2 %s>%d</td></tr>\n",
1121       trstring, tdstring, tdstring, bad);
1122    if (bad)
1123        printf("<tr %s><td colspan=4 %s >   (Connect: %d, Length: %d, Exceptions: %d)</td></tr>\n",
1124           trstring, tdstring, err_conn, err_length, err_except);
1125    if (err_response)
1126        printf("<tr %s><th colspan=2 %s>Non-2xx responses:</th>"
1127           "<td colspan=2 %s>%d</td></tr>\n",
1128           trstring, tdstring, tdstring, err_response);
1129    if (keepalive)
1130        printf("<tr %s><th colspan=2 %s>Keep-Alive requests:</th>"
1131           "<td colspan=2 %s>%d</td></tr>\n",
1132           trstring, tdstring, tdstring, doneka);
1133    printf("<tr %s><th colspan=2 %s>Total transferred:</th>"
1134       "<td colspan=2 %s>%" APR_INT64_T_FMT " bytes</td></tr>\n",
1135       trstring, tdstring, tdstring, totalread);
1136    if (send_body)
1137        printf("<tr %s><th colspan=2 %s>Total body sent:</th>"
1138           "<td colspan=2 %s>%" APR_INT64_T_FMT "</td></tr>\n",
1139           trstring, tdstring,
1140           tdstring, totalposted);
1141    printf("<tr %s><th colspan=2 %s>HTML transferred:</th>"
1142       "<td colspan=2 %s>%" APR_INT64_T_FMT " bytes</td></tr>\n",
1143       trstring, tdstring, tdstring, totalbread);
1144
1145    /* avoid divide by zero */
1146    if (timetaken) {
1147        printf("<tr %s><th colspan=2 %s>Requests per second:</th>"
1148           "<td colspan=2 %s>%.2f</td></tr>\n",
1149           trstring, tdstring, tdstring, (double) done / timetaken);
1150        printf("<tr %s><th colspan=2 %s>Transfer rate:</th>"
1151           "<td colspan=2 %s>%.2f kb/s received</td></tr>\n",
1152           trstring, tdstring, tdstring, (double) totalread / 1024 / timetaken);
1153        if (send_body) {
1154            printf("<tr %s><td colspan=2 %s>&nbsp;</td>"
1155               "<td colspan=2 %s>%.2f kb/s sent</td></tr>\n",
1156               trstring, tdstring, tdstring,
1157               (double) totalposted / 1024 / timetaken);
1158            printf("<tr %s><td colspan=2 %s>&nbsp;</td>"
1159               "<td colspan=2 %s>%.2f kb/s total</td></tr>\n",
1160               trstring, tdstring, tdstring,
1161               (double) (totalread + totalposted) / 1024 / timetaken);
1162        }
1163    }
1164    {
1165        /* work out connection times */
1166        int i;
1167        apr_interval_time_t totalcon = 0, total = 0;
1168        apr_interval_time_t mincon = AB_MAX, mintot = AB_MAX;
1169        apr_interval_time_t maxcon = 0, maxtot = 0;
1170
1171        for (i = 0; i < done; i++) {
1172            struct data *s = &stats[i];
1173            mincon = ap_min(mincon, s->ctime);
1174            mintot = ap_min(mintot, s->time);
1175            maxcon = ap_max(maxcon, s->ctime);
1176            maxtot = ap_max(maxtot, s->time);
1177            totalcon += s->ctime;
1178            total    += s->time;
1179        }
1180        /*
1181         * Reduce stats from apr time to milliseconds
1182         */
1183        mincon   = ap_round_ms(mincon);
1184        mintot   = ap_round_ms(mintot);
1185        maxcon   = ap_round_ms(maxcon);
1186        maxtot   = ap_round_ms(maxtot);
1187        totalcon = ap_round_ms(totalcon);
1188        total    = ap_round_ms(total);
1189
1190        if (done > 0) { /* avoid division by zero (if 0 done) */
1191            printf("<tr %s><th %s colspan=4>Connnection Times (ms)</th></tr>\n",
1192               trstring, tdstring);
1193            printf("<tr %s><th %s>&nbsp;</th> <th %s>min</th>   <th %s>avg</th>   <th %s>max</th></tr>\n",
1194               trstring, tdstring, tdstring, tdstring, tdstring);
1195            printf("<tr %s><th %s>Connect:</th>"
1196               "<td %s>%5" APR_TIME_T_FMT "</td>"
1197               "<td %s>%5" APR_TIME_T_FMT "</td>"
1198               "<td %s>%5" APR_TIME_T_FMT "</td></tr>\n",
1199               trstring, tdstring, tdstring, mincon, tdstring, totalcon / done, tdstring, maxcon);
1200            printf("<tr %s><th %s>Processing:</th>"
1201               "<td %s>%5" APR_TIME_T_FMT "</td>"
1202               "<td %s>%5" APR_TIME_T_FMT "</td>"
1203               "<td %s>%5" APR_TIME_T_FMT "</td></tr>\n",
1204               trstring, tdstring, tdstring, mintot - mincon, tdstring,
1205               (total / done) - (totalcon / done), tdstring, maxtot - maxcon);
1206            printf("<tr %s><th %s>Total:</th>"
1207               "<td %s>%5" APR_TIME_T_FMT "</td>"
1208               "<td %s>%5" APR_TIME_T_FMT "</td>"
1209               "<td %s>%5" APR_TIME_T_FMT "</td></tr>\n",
1210               trstring, tdstring, tdstring, mintot, tdstring, total / done, tdstring, maxtot);
1211        }
1212        printf("</table>\n");
1213    }
1214}
1215
1216/* --------------------------------------------------------- */
1217
1218/* start asnchronous non-blocking connection */
1219
1220static void start_connect(struct connection * c)
1221{
1222    apr_status_t rv;
1223
1224    if (!(started < requests))
1225    return;
1226
1227    c->read = 0;
1228    c->bread = 0;
1229    c->keepalive = 0;
1230    c->cbx = 0;
1231    c->gotheader = 0;
1232    c->rwrite = 0;
1233    if (c->ctx)
1234        apr_pool_clear(c->ctx);
1235    else
1236        apr_pool_create(&c->ctx, cntxt);
1237
1238    if ((rv = apr_socket_create(&c->aprsock, destsa->family,
1239                SOCK_STREAM, 0, c->ctx)) != APR_SUCCESS) {
1240    apr_err("socket", rv);
1241    }
1242
1243    if (myhost) {
1244        if ((rv = apr_socket_bind(c->aprsock, mysa)) != APR_SUCCESS) {
1245            apr_err("bind", rv);
1246        }
1247    }
1248
1249    c->pollfd.desc_type = APR_POLL_SOCKET;
1250    c->pollfd.desc.s = c->aprsock;
1251    c->pollfd.reqevents = 0;
1252    c->pollfd.client_data = c;
1253
1254    if ((rv = apr_socket_opt_set(c->aprsock, APR_SO_NONBLOCK, 1))
1255         != APR_SUCCESS) {
1256        apr_err("socket nonblock", rv);
1257    }
1258
1259    if (windowsize != 0) {
1260        rv = apr_socket_opt_set(c->aprsock, APR_SO_SNDBUF,
1261                                windowsize);
1262        if (rv != APR_SUCCESS && rv != APR_ENOTIMPL) {
1263            apr_err("socket send buffer", rv);
1264        }
1265        rv = apr_socket_opt_set(c->aprsock, APR_SO_RCVBUF,
1266                                windowsize);
1267        if (rv != APR_SUCCESS && rv != APR_ENOTIMPL) {
1268            apr_err("socket receive buffer", rv);
1269        }
1270    }
1271
1272    c->start = lasttime = apr_time_now();
1273#ifdef USE_SSL
1274    if (is_ssl) {
1275        BIO *bio;
1276        apr_os_sock_t fd;
1277
1278        if ((c->ssl = SSL_new(ssl_ctx)) == NULL) {
1279            BIO_printf(bio_err, "SSL_new failed.\n");
1280            ERR_print_errors(bio_err);
1281            exit(1);
1282        }
1283        ssl_rand_seed();
1284        apr_os_sock_get(&fd, c->aprsock);
1285        bio = BIO_new_socket(fd, BIO_NOCLOSE);
1286        SSL_set_bio(c->ssl, bio, bio);
1287        SSL_set_connect_state(c->ssl);
1288        if (verbosity >= 4) {
1289            BIO_set_callback(bio, ssl_print_cb);
1290            BIO_set_callback_arg(bio, (void *)bio_err);
1291        }
1292    } else {
1293        c->ssl = NULL;
1294    }
1295#endif
1296    if ((rv = apr_socket_connect(c->aprsock, destsa)) != APR_SUCCESS) {
1297        if (APR_STATUS_IS_EINPROGRESS(rv)) {
1298            set_conn_state(c, STATE_CONNECTING);
1299            c->rwrite = 0;
1300            return;
1301        }
1302        else {
1303            set_conn_state(c, STATE_UNCONNECTED);
1304            apr_socket_close(c->aprsock);
1305            err_conn++;
1306            if (bad++ > 10) {
1307                fprintf(stderr,
1308                   "\nTest aborted after 10 failures\n\n");
1309                apr_err("apr_socket_connect()", rv);
1310            }
1311
1312            start_connect(c);
1313            return;
1314        }
1315    }
1316
1317    /* connected first time */
1318    set_conn_state(c, STATE_CONNECTED);
1319#ifdef USE_SSL
1320    if (c->ssl) {
1321        ssl_proceed_handshake(c);
1322    } else
1323#endif
1324    {
1325        write_request(c);
1326    }
1327}
1328
1329/* --------------------------------------------------------- */
1330
1331/* close down connection and save stats */
1332
1333static void close_connection(struct connection * c)
1334{
1335    if (c->read == 0 && c->keepalive) {
1336        /*
1337         * server has legitimately shut down an idle keep alive request
1338         */
1339        if (good)
1340            good--;     /* connection never happened */
1341    }
1342    else {
1343        if (good == 1) {
1344            /* first time here */
1345            doclen = c->bread;
1346        }
1347        else if ((c->bread != doclen) && !nolength) {
1348            bad++;
1349            err_length++;
1350        }
1351        /* save out time */
1352        if (done < requests) {
1353            struct data *s = &stats[done++];
1354            c->done      = lasttime = apr_time_now();
1355            s->starttime = c->start;
1356            s->ctime     = ap_max(0, c->connect - c->start);
1357            s->time      = ap_max(0, c->done - c->start);
1358            s->waittime  = ap_max(0, c->beginread - c->endwrite);
1359            if (heartbeatres && !(done % heartbeatres)) {
1360                fprintf(stderr, "Completed %d requests\n", done);
1361                fflush(stderr);
1362            }
1363        }
1364    }
1365
1366    set_conn_state(c, STATE_UNCONNECTED);
1367#ifdef USE_SSL
1368    if (c->ssl) {
1369        SSL_shutdown(c->ssl);
1370        SSL_free(c->ssl);
1371        c->ssl = NULL;
1372    }
1373#endif
1374    apr_socket_close(c->aprsock);
1375
1376    /* connect again */
1377    start_connect(c);
1378    return;
1379}
1380
1381/* --------------------------------------------------------- */
1382
1383/* read data from connection */
1384
1385static void read_connection(struct connection * c)
1386{
1387    apr_size_t r;
1388    apr_status_t status;
1389    char *part;
1390    char respcode[4];       /* 3 digits and null */
1391
1392    r = sizeof(buffer);
1393#ifdef USE_SSL
1394    if (c->ssl) {
1395        status = SSL_read(c->ssl, buffer, r);
1396        if (status <= 0) {
1397            int scode = SSL_get_error(c->ssl, status);
1398
1399            if (scode == SSL_ERROR_ZERO_RETURN) {
1400                /* connection closed cleanly: */
1401                good++;
1402                close_connection(c);
1403            }
1404            else if (scode == SSL_ERROR_SYSCALL
1405                     && status == 0
1406                     && c->read != 0) {
1407                /* connection closed, but in violation of the protocol, after
1408                 * some data has already been read; this commonly happens, so
1409                 * let the length check catch any response errors
1410                 */
1411                good++;
1412                close_connection(c);
1413            }
1414            else if (scode != SSL_ERROR_WANT_WRITE
1415                     && scode != SSL_ERROR_WANT_READ) {
1416                /* some fatal error: */
1417                c->read = 0;
1418                BIO_printf(bio_err, "SSL read failed (%d) - closing connection\n", scode);
1419                ERR_print_errors(bio_err);
1420                close_connection(c);
1421            }
1422            return;
1423        }
1424        r = status;
1425    }
1426    else
1427#endif
1428    {
1429        status = apr_socket_recv(c->aprsock, buffer, &r);
1430        if (APR_STATUS_IS_EAGAIN(status))
1431            return;
1432        else if (r == 0 && APR_STATUS_IS_EOF(status)) {
1433            good++;
1434            close_connection(c);
1435            return;
1436        }
1437        /* catch legitimate fatal apr_socket_recv errors */
1438        else if (status != APR_SUCCESS) {
1439            err_recv++;
1440            if (recverrok) {
1441                bad++;
1442                close_connection(c);
1443                if (verbosity >= 1) {
1444                    char buf[120];
1445                    fprintf(stderr,"%s: %s (%d)\n", "apr_socket_recv", apr_strerror(status, buf, sizeof buf), status);
1446                }
1447                return;
1448            } else {
1449                apr_err("apr_socket_recv", status);
1450            }
1451        }
1452    }
1453
1454    totalread += r;
1455    if (c->read == 0) {
1456        c->beginread = apr_time_now();
1457    }
1458    c->read += r;
1459
1460
1461    if (!c->gotheader) {
1462        char *s;
1463        int l = 4;
1464        apr_size_t space = CBUFFSIZE - c->cbx - 1; /* -1 allows for \0 term */
1465        int tocopy = (space < r) ? space : r;
1466#ifdef NOT_ASCII
1467        apr_size_t inbytes_left = space, outbytes_left = space;
1468
1469        status = apr_xlate_conv_buffer(from_ascii, buffer, &inbytes_left,
1470                           c->cbuff + c->cbx, &outbytes_left);
1471        if (status || inbytes_left || outbytes_left) {
1472            fprintf(stderr, "only simple translation is supported (%d/%" APR_SIZE_T_FMT
1473                            "/%" APR_SIZE_T_FMT ")\n", status, inbytes_left, outbytes_left);
1474            exit(1);
1475        }
1476#else
1477        memcpy(c->cbuff + c->cbx, buffer, space);
1478#endif              /* NOT_ASCII */
1479        c->cbx += tocopy;
1480        space -= tocopy;
1481        c->cbuff[c->cbx] = 0;   /* terminate for benefit of strstr */
1482        if (verbosity >= 2) {
1483            printf("LOG: header received:\n%s\n", c->cbuff);
1484        }
1485        s = strstr(c->cbuff, "\r\n\r\n");
1486        /*
1487         * this next line is so that we talk to NCSA 1.5 which blatantly
1488         * breaks the http specifaction
1489         */
1490        if (!s) {
1491            s = strstr(c->cbuff, "\n\n");
1492            l = 2;
1493        }
1494
1495        if (!s) {
1496            /* read rest next time */
1497            if (space) {
1498                return;
1499            }
1500            else {
1501            /* header is in invalid or too big - close connection */
1502                set_conn_state(c, STATE_UNCONNECTED);
1503                apr_socket_close(c->aprsock);
1504                err_response++;
1505                if (bad++ > 10) {
1506                    err("\nTest aborted after 10 failures\n\n");
1507                }
1508                start_connect(c);
1509            }
1510        }
1511        else {
1512            /* have full header */
1513            if (!good) {
1514                /*
1515                 * this is first time, extract some interesting info
1516                 */
1517                char *p, *q;
1518                p = strstr(c->cbuff, "Server:");
1519                q = servername;
1520                if (p) {
1521                    p += 8;
1522                    while (*p > 32)
1523                    *q++ = *p++;
1524                }
1525                *q = 0;
1526            }
1527            /*
1528             * XXX: this parsing isn't even remotely HTTP compliant... but in
1529             * the interest of speed it doesn't totally have to be, it just
1530             * needs to be extended to handle whatever servers folks want to
1531             * test against. -djg
1532             */
1533
1534            /* check response code */
1535            part = strstr(c->cbuff, "HTTP");    /* really HTTP/1.x_ */
1536            if (part && strlen(part) > strlen("HTTP/1.x_")) {
1537                strncpy(respcode, (part + strlen("HTTP/1.x_")), 3);
1538                respcode[3] = '\0';
1539            }
1540            else {
1541                strcpy(respcode, "500");
1542            }
1543
1544            if (respcode[0] != '2') {
1545                err_response++;
1546                if (verbosity >= 2)
1547                    printf("WARNING: Response code not 2xx (%s)\n", respcode);
1548            }
1549            else if (verbosity >= 3) {
1550                printf("LOG: Response code = %s\n", respcode);
1551            }
1552            c->gotheader = 1;
1553            *s = 0;     /* terminate at end of header */
1554            if (keepalive &&
1555            (strstr(c->cbuff, "Keep-Alive")
1556             || strstr(c->cbuff, "keep-alive"))) {  /* for benefit of MSIIS */
1557                char *cl;
1558                cl = strstr(c->cbuff, "Content-Length:");
1559                /* handle NCSA, which sends Content-length: */
1560                if (!cl)
1561                    cl = strstr(c->cbuff, "Content-length:");
1562                if (cl) {
1563                    c->keepalive = 1;
1564                    /* response to HEAD doesn't have entity body */
1565                    c->length = method != HEAD ? atoi(cl + 16) : 0;
1566                }
1567                /* The response may not have a Content-Length header */
1568                if (!cl) {
1569                    c->keepalive = 1;
1570                    c->length = 0;
1571                }
1572            }
1573            c->bread += c->cbx - (s + l - c->cbuff) + r - tocopy;
1574            totalbread += c->bread;
1575        }
1576    }
1577    else {
1578        /* outside header, everything we have read is entity body */
1579        c->bread += r;
1580        totalbread += r;
1581    }
1582
1583    if (c->keepalive && (c->bread >= c->length)) {
1584        /* finished a keep-alive connection */
1585        good++;
1586        /* save out time */
1587        if (good == 1) {
1588            /* first time here */
1589            doclen = c->bread;
1590        }
1591        else if ((c->bread != doclen) && !nolength) {
1592            bad++;
1593            err_length++;
1594        }
1595        if (done < requests) {
1596            struct data *s = &stats[done++];
1597            doneka++;
1598            c->done      = apr_time_now();
1599            s->starttime = c->start;
1600            s->ctime     = ap_max(0, c->connect - c->start);
1601            s->time      = ap_max(0, c->done - c->start);
1602            s->waittime  = ap_max(0, c->beginread - c->endwrite);
1603            if (heartbeatres && !(done % heartbeatres)) {
1604                fprintf(stderr, "Completed %d requests\n", done);
1605                fflush(stderr);
1606            }
1607        }
1608        c->keepalive = 0;
1609        c->length = 0;
1610        c->gotheader = 0;
1611        c->cbx = 0;
1612        c->read = c->bread = 0;
1613        /* zero connect time with keep-alive */
1614        c->start = c->connect = lasttime = apr_time_now();
1615        write_request(c);
1616    }
1617}
1618
1619/* --------------------------------------------------------- */
1620
1621/* run the tests */
1622
1623static void test(void)
1624{
1625    apr_time_t stoptime;
1626    apr_int16_t rtnev;
1627    apr_status_t rv;
1628    int i;
1629    apr_status_t status;
1630    int snprintf_res = 0;
1631#ifdef NOT_ASCII
1632    apr_size_t inbytes_left, outbytes_left;
1633#endif
1634
1635    if (isproxy) {
1636        connecthost = apr_pstrdup(cntxt, proxyhost);
1637        connectport = proxyport;
1638    }
1639    else {
1640        connecthost = apr_pstrdup(cntxt, hostname);
1641        connectport = port;
1642    }
1643
1644    if (!use_html) {
1645        printf("Benchmarking %s ", hostname);
1646    if (isproxy)
1647        printf("[through %s:%d] ", proxyhost, proxyport);
1648    printf("(be patient)%s",
1649           (heartbeatres ? "\n" : "..."));
1650    fflush(stdout);
1651    }
1652
1653    con = xcalloc(concurrency, sizeof(struct connection));
1654
1655    /*
1656     * XXX: a way to calculate the stats without requiring O(requests) memory
1657     * XXX: would be nice.
1658     */
1659    stats = xcalloc(requests, sizeof(struct data));
1660
1661    if ((status = apr_pollset_create(&readbits, concurrency, cntxt,
1662                                     APR_POLLSET_NOCOPY)) != APR_SUCCESS) {
1663        apr_err("apr_pollset_create failed", status);
1664    }
1665
1666    /* add default headers if necessary */
1667    if (!opt_host) {
1668        /* Host: header not overridden, add default value to hdrs */
1669        hdrs = apr_pstrcat(cntxt, hdrs, "Host: ", host_field, colonhost, "\r\n", NULL);
1670    }
1671    else {
1672        /* Header overridden, no need to add, as it is already in hdrs */
1673    }
1674
1675    if (!opt_useragent) {
1676        /* User-Agent: header not overridden, add default value to hdrs */
1677        hdrs = apr_pstrcat(cntxt, hdrs, "User-Agent: ApacheBench/", AP_AB_BASEREVISION, "\r\n", NULL);
1678    }
1679    else {
1680        /* Header overridden, no need to add, as it is already in hdrs */
1681    }
1682
1683    if (!opt_accept) {
1684        /* Accept: header not overridden, add default value to hdrs */
1685        hdrs = apr_pstrcat(cntxt, hdrs, "Accept: */*\r\n", NULL);
1686    }
1687    else {
1688        /* Header overridden, no need to add, as it is already in hdrs */
1689    }
1690
1691    /* setup request */
1692    if (!send_body) {
1693        snprintf_res = apr_snprintf(request, sizeof(_request),
1694            "%s %s HTTP/1.0\r\n"
1695            "%s" "%s" "%s"
1696            "%s" "\r\n",
1697            method_str[method],
1698            (isproxy) ? fullurl : path,
1699            keepalive ? "Connection: Keep-Alive\r\n" : "",
1700            cookie, auth, hdrs);
1701    }
1702    else {
1703        snprintf_res = apr_snprintf(request,  sizeof(_request),
1704            "%s %s HTTP/1.0\r\n"
1705            "%s" "%s" "%s"
1706            "Content-length: %" APR_SIZE_T_FMT "\r\n"
1707            "Content-type: %s\r\n"
1708            "%s"
1709            "\r\n",
1710            method_str[method],
1711            (isproxy) ? fullurl : path,
1712            keepalive ? "Connection: Keep-Alive\r\n" : "",
1713            cookie, auth,
1714            postlen,
1715            (content_type != NULL) ? content_type : "text/plain", hdrs);
1716    }
1717    if (snprintf_res >= sizeof(_request)) {
1718        err("Request too long\n");
1719    }
1720
1721    if (verbosity >= 2)
1722        printf("INFO: %s header == \n---\n%s\n---\n",
1723               method_str[method], request);
1724
1725    reqlen = strlen(request);
1726
1727    /*
1728     * Combine headers and (optional) post file into one continuous buffer
1729     */
1730    if (send_body) {
1731        char *buff = xmalloc(postlen + reqlen + 1);
1732        strcpy(buff, request);
1733        memcpy(buff + reqlen, postdata, postlen);
1734        request = buff;
1735    }
1736
1737#ifdef NOT_ASCII
1738    inbytes_left = outbytes_left = reqlen;
1739    status = apr_xlate_conv_buffer(to_ascii, request, &inbytes_left,
1740                   request, &outbytes_left);
1741    if (status || inbytes_left || outbytes_left) {
1742        fprintf(stderr, "only simple translation is supported (%d/%"
1743                        APR_SIZE_T_FMT "/%" APR_SIZE_T_FMT ")\n",
1744                        status, inbytes_left, outbytes_left);
1745        exit(1);
1746    }
1747#endif              /* NOT_ASCII */
1748
1749    if (myhost) {
1750        /* This only needs to be done once */
1751        if ((rv = apr_sockaddr_info_get(&mysa, myhost, APR_UNSPEC, 0, 0, cntxt)) != APR_SUCCESS) {
1752            char buf[120];
1753            apr_snprintf(buf, sizeof(buf),
1754                         "apr_sockaddr_info_get() for %s", myhost);
1755            apr_err(buf, rv);
1756        }
1757    }
1758
1759    /* This too */
1760    if ((rv = apr_sockaddr_info_get(&destsa, connecthost,
1761                                    myhost ? mysa->family : APR_UNSPEC,
1762                                    connectport, 0, cntxt))
1763       != APR_SUCCESS) {
1764        char buf[120];
1765        apr_snprintf(buf, sizeof(buf),
1766                 "apr_sockaddr_info_get() for %s", connecthost);
1767        apr_err(buf, rv);
1768    }
1769
1770    /* ok - lets start */
1771    start = lasttime = apr_time_now();
1772    stoptime = tlimit ? (start + apr_time_from_sec(tlimit)) : AB_MAX;
1773
1774#ifdef SIGINT
1775    /* Output the results if the user terminates the run early. */
1776    apr_signal(SIGINT, output_results);
1777#endif
1778
1779    /* initialise lots of requests */
1780    for (i = 0; i < concurrency; i++) {
1781        con[i].socknum = i;
1782        start_connect(&con[i]);
1783    }
1784
1785    do {
1786        apr_int32_t n;
1787        const apr_pollfd_t *pollresults, *pollfd;
1788
1789        n = concurrency;
1790        do {
1791            status = apr_pollset_poll(readbits, aprtimeout, &n, &pollresults);
1792        } while (APR_STATUS_IS_EINTR(status));
1793        if (status != APR_SUCCESS)
1794            apr_err("apr_pollset_poll", status);
1795
1796        for (i = 0, pollfd = pollresults; i < n; i++, pollfd++) {
1797            struct connection *c;
1798
1799            c = pollfd->client_data;
1800
1801            /*
1802             * If the connection isn't connected how can we check it?
1803             */
1804            if (c->state == STATE_UNCONNECTED)
1805                continue;
1806
1807            rtnev = pollfd->rtnevents;
1808
1809#ifdef USE_SSL
1810            if (c->state == STATE_CONNECTED && c->ssl && SSL_in_init(c->ssl)) {
1811                ssl_proceed_handshake(c);
1812                continue;
1813            }
1814#endif
1815
1816            /*
1817             * Notes: APR_POLLHUP is set after FIN is received on some
1818             * systems, so treat that like APR_POLLIN so that we try to read
1819             * again.
1820             *
1821             * Some systems return APR_POLLERR with APR_POLLHUP.  We need to
1822             * call read_connection() for APR_POLLHUP, so check for
1823             * APR_POLLHUP first so that a closed connection isn't treated
1824             * like an I/O error.  If it is, we never figure out that the
1825             * connection is done and we loop here endlessly calling
1826             * apr_poll().
1827             */
1828            if ((rtnev & APR_POLLIN) || (rtnev & APR_POLLPRI) || (rtnev & APR_POLLHUP))
1829                read_connection(c);
1830            if ((rtnev & APR_POLLERR) || (rtnev & APR_POLLNVAL)) {
1831                bad++;
1832                err_except++;
1833                /* avoid apr_poll/EINPROGRESS loop on HP-UX, let recv discover ECONNREFUSED */
1834                if (c->state == STATE_CONNECTING) {
1835                    read_connection(c);
1836                }
1837                else {
1838                    start_connect(c);
1839                }
1840                continue;
1841            }
1842            if (rtnev & APR_POLLOUT) {
1843                if (c->state == STATE_CONNECTING) {
1844                    rv = apr_socket_connect(c->aprsock, destsa);
1845                    if (rv != APR_SUCCESS) {
1846                        set_conn_state(c, STATE_UNCONNECTED);
1847                        apr_socket_close(c->aprsock);
1848                        err_conn++;
1849                        if (bad++ > 10) {
1850                            fprintf(stderr,
1851                                    "\nTest aborted after 10 failures\n\n");
1852                            apr_err("apr_socket_connect()", rv);
1853                        }
1854                        start_connect(c);
1855                        continue;
1856                    }
1857                    else {
1858                        set_conn_state(c, STATE_CONNECTED);
1859#ifdef USE_SSL
1860                        if (c->ssl)
1861                            ssl_proceed_handshake(c);
1862                        else
1863#endif
1864                        write_request(c);
1865                    }
1866                }
1867                else {
1868                    write_request(c);
1869                }
1870            }
1871        }
1872    } while (lasttime < stoptime && done < requests);
1873
1874    if (heartbeatres)
1875        fprintf(stderr, "Finished %d requests\n", done);
1876    else
1877        printf("..done\n");
1878
1879    if (use_html)
1880        output_html_results();
1881    else
1882        output_results(0);
1883}
1884
1885/* ------------------------------------------------------- */
1886
1887/* display copyright information */
1888static void copyright(void)
1889{
1890    if (!use_html) {
1891        printf("This is ApacheBench, Version %s\n", AP_AB_BASEREVISION " <$Revision: 1554214 $>");
1892        printf("Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/\n");
1893        printf("Licensed to The Apache Software Foundation, http://www.apache.org/\n");
1894        printf("\n");
1895    }
1896    else {
1897        printf("<p>\n");
1898        printf(" This is ApacheBench, Version %s <i>&lt;%s&gt;</i><br>\n", AP_AB_BASEREVISION, "$Revision: 1554214 $");
1899        printf(" Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/<br>\n");
1900        printf(" Licensed to The Apache Software Foundation, http://www.apache.org/<br>\n");
1901        printf("</p>\n<p>\n");
1902    }
1903}
1904
1905/* display usage information */
1906static void usage(const char *progname)
1907{
1908    fprintf(stderr, "Usage: %s [options] [http"
1909#ifdef USE_SSL
1910        "[s]"
1911#endif
1912        "://]hostname[:port]/path\n", progname);
1913/* 80 column ruler:  ********************************************************************************
1914 */
1915    fprintf(stderr, "Options are:\n");
1916    fprintf(stderr, "    -n requests     Number of requests to perform\n");
1917    fprintf(stderr, "    -c concurrency  Number of multiple requests to make at a time\n");
1918    fprintf(stderr, "    -t timelimit    Seconds to max. to spend on benchmarking\n");
1919    fprintf(stderr, "                    This implies -n 50000\n");
1920    fprintf(stderr, "    -s timeout      Seconds to max. wait for each response\n");
1921    fprintf(stderr, "                    Default is 30 seconds\n");
1922    fprintf(stderr, "    -b windowsize   Size of TCP send/receive buffer, in bytes\n");
1923    fprintf(stderr, "    -B address      Address to bind to when making outgoing connections\n");
1924    fprintf(stderr, "    -p postfile     File containing data to POST. Remember also to set -T\n");
1925    fprintf(stderr, "    -u putfile      File containing data to PUT. Remember also to set -T\n");
1926    fprintf(stderr, "    -T content-type Content-type header to use for POST/PUT data, eg.\n");
1927    fprintf(stderr, "                    'application/x-www-form-urlencoded'\n");
1928    fprintf(stderr, "                    Default is 'text/plain'\n");
1929    fprintf(stderr, "    -v verbosity    How much troubleshooting info to print\n");
1930    fprintf(stderr, "    -w              Print out results in HTML tables\n");
1931    fprintf(stderr, "    -i              Use HEAD instead of GET\n");
1932    fprintf(stderr, "    -x attributes   String to insert as table attributes\n");
1933    fprintf(stderr, "    -y attributes   String to insert as tr attributes\n");
1934    fprintf(stderr, "    -z attributes   String to insert as td or th attributes\n");
1935    fprintf(stderr, "    -C attribute    Add cookie, eg. 'Apache=1234'. (repeatable)\n");
1936    fprintf(stderr, "    -H attribute    Add Arbitrary header line, eg. 'Accept-Encoding: gzip'\n");
1937    fprintf(stderr, "                    Inserted after all normal header lines. (repeatable)\n");
1938    fprintf(stderr, "    -A attribute    Add Basic WWW Authentication, the attributes\n");
1939    fprintf(stderr, "                    are a colon separated username and password.\n");
1940    fprintf(stderr, "    -P attribute    Add Basic Proxy Authentication, the attributes\n");
1941    fprintf(stderr, "                    are a colon separated username and password.\n");
1942    fprintf(stderr, "    -X proxy:port   Proxyserver and port number to use\n");
1943    fprintf(stderr, "    -V              Print version number and exit\n");
1944    fprintf(stderr, "    -k              Use HTTP KeepAlive feature\n");
1945    fprintf(stderr, "    -d              Do not show percentiles served table.\n");
1946    fprintf(stderr, "    -S              Do not show confidence estimators and warnings.\n");
1947    fprintf(stderr, "    -q              Do not show progress when doing more than 150 requests\n");
1948    fprintf(stderr, "    -l              Accept variable document length (use this for dynamic pages)\n");
1949    fprintf(stderr, "    -g filename     Output collected data to gnuplot format file.\n");
1950    fprintf(stderr, "    -e filename     Output CSV file with percentages served\n");
1951    fprintf(stderr, "    -r              Don't exit on socket receive errors.\n");
1952    fprintf(stderr, "    -h              Display usage information (this message)\n");
1953#ifdef USE_SSL
1954
1955#ifndef OPENSSL_NO_SSL2
1956#define SSL2_HELP_MSG "SSL2, "
1957#else
1958#define SSL2_HELP_MSG ""
1959#endif
1960
1961#ifdef HAVE_TLSV1_X
1962#define TLS1_X_HELP_MSG ", TLS1.1, TLS1.2"
1963#else
1964#define TLS1_X_HELP_MSG ""
1965#endif
1966
1967    fprintf(stderr, "    -Z ciphersuite  Specify SSL/TLS cipher suite (See openssl ciphers)\n");
1968    fprintf(stderr, "    -f protocol     Specify SSL/TLS protocol\n");
1969    fprintf(stderr, "                    (" SSL2_HELP_MSG "SSL3, TLS1" TLS1_X_HELP_MSG " or ALL)\n");
1970#endif
1971    exit(EINVAL);
1972}
1973
1974/* ------------------------------------------------------- */
1975
1976/* split URL into parts */
1977
1978static int parse_url(const char *url)
1979{
1980    char *cp;
1981    char *h;
1982    char *scope_id;
1983    apr_status_t rv;
1984
1985    /* Save a copy for the proxy */
1986    fullurl = apr_pstrdup(cntxt, url);
1987
1988    if (strlen(url) > 7 && strncmp(url, "http://", 7) == 0) {
1989        url += 7;
1990#ifdef USE_SSL
1991        is_ssl = 0;
1992#endif
1993    }
1994    else
1995#ifdef USE_SSL
1996    if (strlen(url) > 8 && strncmp(url, "https://", 8) == 0) {
1997        url += 8;
1998        is_ssl = 1;
1999    }
2000#else
2001    if (strlen(url) > 8 && strncmp(url, "https://", 8) == 0) {
2002        fprintf(stderr, "SSL not compiled in; no https support\n");
2003        exit(1);
2004    }
2005#endif
2006
2007    if ((cp = strchr(url, '/')) == NULL)
2008        return 1;
2009    h = apr_pstrmemdup(cntxt, url, cp - url);
2010    rv = apr_parse_addr_port(&hostname, &scope_id, &port, h, cntxt);
2011    if (rv != APR_SUCCESS || !hostname || scope_id) {
2012        return 1;
2013    }
2014    path = apr_pstrdup(cntxt, cp);
2015    *cp = '\0';
2016    if (*url == '[') {      /* IPv6 numeric address string */
2017        host_field = apr_psprintf(cntxt, "[%s]", hostname);
2018    }
2019    else {
2020        host_field = hostname;
2021    }
2022
2023    if (port == 0) {        /* no port specified */
2024#ifdef USE_SSL
2025        if (is_ssl)
2026            port = 443;
2027        else
2028#endif
2029        port = 80;
2030    }
2031
2032    if ((
2033#ifdef USE_SSL
2034         is_ssl && (port != 443)) || (!is_ssl &&
2035#endif
2036         (port != 80)))
2037    {
2038        colonhost = apr_psprintf(cntxt,":%d",port);
2039    } else
2040        colonhost = "";
2041    return 0;
2042}
2043
2044/* ------------------------------------------------------- */
2045
2046/* read data to POST/PUT from file, save contents and length */
2047
2048static apr_status_t open_postfile(const char *pfile)
2049{
2050    apr_file_t *postfd;
2051    apr_finfo_t finfo;
2052    apr_status_t rv;
2053    char errmsg[120];
2054
2055    rv = apr_file_open(&postfd, pfile, APR_READ, APR_OS_DEFAULT, cntxt);
2056    if (rv != APR_SUCCESS) {
2057        fprintf(stderr, "ab: Could not open POST data file (%s): %s\n", pfile,
2058                apr_strerror(rv, errmsg, sizeof errmsg));
2059        return rv;
2060    }
2061
2062    rv = apr_file_info_get(&finfo, APR_FINFO_NORM, postfd);
2063    if (rv != APR_SUCCESS) {
2064        fprintf(stderr, "ab: Could not stat POST data file (%s): %s\n", pfile,
2065                apr_strerror(rv, errmsg, sizeof errmsg));
2066        return rv;
2067    }
2068    postlen = (apr_size_t)finfo.size;
2069    postdata = xmalloc(postlen);
2070    rv = apr_file_read_full(postfd, postdata, postlen, NULL);
2071    if (rv != APR_SUCCESS) {
2072        fprintf(stderr, "ab: Could not read POST data file: %s\n",
2073                apr_strerror(rv, errmsg, sizeof errmsg));
2074        return rv;
2075    }
2076    apr_file_close(postfd);
2077    return APR_SUCCESS;
2078}
2079
2080/* ------------------------------------------------------- */
2081
2082/* sort out command-line args and call test */
2083int main(int argc, const char * const argv[])
2084{
2085    int l;
2086    char tmp[1024];
2087    apr_status_t status;
2088    apr_getopt_t *opt;
2089    const char *opt_arg;
2090    char c;
2091#ifdef USE_SSL
2092    AB_SSL_METHOD_CONST SSL_METHOD *meth = SSLv23_client_method();
2093#endif
2094
2095    /* table defaults  */
2096    tablestring = "";
2097    trstring = "";
2098    tdstring = "bgcolor=white";
2099    cookie = "";
2100    auth = "";
2101    proxyhost = "";
2102    hdrs = "";
2103
2104    apr_app_initialize(&argc, &argv, NULL);
2105    atexit(apr_terminate);
2106    apr_pool_create(&cntxt, NULL);
2107    apr_pool_abort_set(abort_on_oom, cntxt);
2108
2109#ifdef NOT_ASCII
2110    status = apr_xlate_open(&to_ascii, "ISO-8859-1", APR_DEFAULT_CHARSET, cntxt);
2111    if (status) {
2112        fprintf(stderr, "apr_xlate_open(to ASCII)->%d\n", status);
2113        exit(1);
2114    }
2115    status = apr_xlate_open(&from_ascii, APR_DEFAULT_CHARSET, "ISO-8859-1", cntxt);
2116    if (status) {
2117        fprintf(stderr, "apr_xlate_open(from ASCII)->%d\n", status);
2118        exit(1);
2119    }
2120    status = apr_base64init_ebcdic(to_ascii, from_ascii);
2121    if (status) {
2122        fprintf(stderr, "apr_base64init_ebcdic()->%d\n", status);
2123        exit(1);
2124    }
2125#endif
2126
2127    myhost = NULL; /* 0.0.0.0 or :: */
2128
2129    apr_getopt_init(&opt, cntxt, argc, argv);
2130    while ((status = apr_getopt(opt, "n:c:t:s:b:T:p:u:v:lrkVhwix:y:z:C:H:P:A:g:X:de:SqB:"
2131#ifdef USE_SSL
2132            "Z:f:"
2133#endif
2134            ,&c, &opt_arg)) == APR_SUCCESS) {
2135        switch (c) {
2136            case 'n':
2137                requests = atoi(opt_arg);
2138                if (requests <= 0) {
2139                    err("Invalid number of requests\n");
2140                }
2141                break;
2142            case 'k':
2143                keepalive = 1;
2144                break;
2145            case 'q':
2146                heartbeatres = 0;
2147                break;
2148            case 'c':
2149                concurrency = atoi(opt_arg);
2150                break;
2151            case 'b':
2152                windowsize = atoi(opt_arg);
2153                break;
2154            case 'i':
2155                if (method != NO_METH)
2156                    err("Cannot mix HEAD with other methods\n");
2157                method = HEAD;
2158                break;
2159            case 'g':
2160                gnuplot = xstrdup(opt_arg);
2161                break;
2162            case 'd':
2163                percentile = 0;
2164                break;
2165            case 'e':
2166                csvperc = xstrdup(opt_arg);
2167                break;
2168            case 'S':
2169                confidence = 0;
2170                break;
2171            case 's':
2172                aprtimeout = apr_time_from_sec(atoi(opt_arg)); /* timeout value */
2173                break;
2174            case 'p':
2175                if (method != NO_METH)
2176                    err("Cannot mix POST with other methods\n");
2177                if (open_postfile(opt_arg) != APR_SUCCESS) {
2178                    exit(1);
2179                }
2180                method = POST;
2181                send_body = 1;
2182                break;
2183            case 'u':
2184                if (method != NO_METH)
2185                    err("Cannot mix PUT with other methods\n");
2186                if (open_postfile(opt_arg) != APR_SUCCESS) {
2187                    exit(1);
2188                }
2189                method = PUT;
2190                send_body = 1;
2191                break;
2192            case 'l':
2193                nolength = 1;
2194                break;
2195            case 'r':
2196                recverrok = 1;
2197                break;
2198            case 'v':
2199                verbosity = atoi(opt_arg);
2200                break;
2201            case 't':
2202                tlimit = atoi(opt_arg);
2203                requests = MAX_REQUESTS;    /* need to size data array on
2204                                             * something */
2205                break;
2206            case 'T':
2207                content_type = apr_pstrdup(cntxt, opt_arg);
2208                break;
2209            case 'C':
2210                cookie = apr_pstrcat(cntxt, "Cookie: ", opt_arg, "\r\n", NULL);
2211                break;
2212            case 'A':
2213                /*
2214                 * assume username passwd already to be in colon separated form.
2215                 * Ready to be uu-encoded.
2216                 */
2217                while (apr_isspace(*opt_arg))
2218                    opt_arg++;
2219                if (apr_base64_encode_len(strlen(opt_arg)) > sizeof(tmp)) {
2220                    err("Authentication credentials too long\n");
2221                }
2222                l = apr_base64_encode(tmp, opt_arg, strlen(opt_arg));
2223                tmp[l] = '\0';
2224
2225                auth = apr_pstrcat(cntxt, auth, "Authorization: Basic ", tmp,
2226                                       "\r\n", NULL);
2227                break;
2228            case 'P':
2229                /*
2230                 * assume username passwd already to be in colon separated form.
2231                 */
2232                while (apr_isspace(*opt_arg))
2233                opt_arg++;
2234                if (apr_base64_encode_len(strlen(opt_arg)) > sizeof(tmp)) {
2235                    err("Proxy credentials too long\n");
2236                }
2237                l = apr_base64_encode(tmp, opt_arg, strlen(opt_arg));
2238                tmp[l] = '\0';
2239
2240                auth = apr_pstrcat(cntxt, auth, "Proxy-Authorization: Basic ",
2241                                       tmp, "\r\n", NULL);
2242                break;
2243            case 'H':
2244                hdrs = apr_pstrcat(cntxt, hdrs, opt_arg, "\r\n", NULL);
2245                /*
2246                 * allow override of some of the common headers that ab adds
2247                 */
2248                if (strncasecmp(opt_arg, "Host:", 5) == 0) {
2249                    opt_host = 1;
2250                } else if (strncasecmp(opt_arg, "Accept:", 7) == 0) {
2251                    opt_accept = 1;
2252                } else if (strncasecmp(opt_arg, "User-Agent:", 11) == 0) {
2253                    opt_useragent = 1;
2254                }
2255                break;
2256            case 'w':
2257                use_html = 1;
2258                break;
2259                /*
2260                 * if any of the following three are used, turn on html output
2261                 * automatically
2262                 */
2263            case 'x':
2264                use_html = 1;
2265                tablestring = opt_arg;
2266                break;
2267            case 'X':
2268                {
2269                    char *p;
2270                    /*
2271                     * assume proxy-name[:port]
2272                     */
2273                    if ((p = strchr(opt_arg, ':'))) {
2274                        *p = '\0';
2275                        p++;
2276                        proxyport = atoi(p);
2277                    }
2278                    proxyhost = apr_pstrdup(cntxt, opt_arg);
2279                    isproxy = 1;
2280                }
2281                break;
2282            case 'y':
2283                use_html = 1;
2284                trstring = opt_arg;
2285                break;
2286            case 'z':
2287                use_html = 1;
2288                tdstring = opt_arg;
2289                break;
2290            case 'h':
2291                usage(argv[0]);
2292                break;
2293            case 'V':
2294                copyright();
2295                return 0;
2296            case 'B':
2297                myhost = apr_pstrdup(cntxt, opt_arg);
2298                break;
2299#ifdef USE_SSL
2300            case 'Z':
2301                ssl_cipher = strdup(opt_arg);
2302                break;
2303            case 'f':
2304                if (strncasecmp(opt_arg, "ALL", 3) == 0) {
2305                    meth = SSLv23_client_method();
2306#ifndef OPENSSL_NO_SSL2
2307                } else if (strncasecmp(opt_arg, "SSL2", 4) == 0) {
2308                    meth = SSLv2_client_method();
2309#endif
2310                } else if (strncasecmp(opt_arg, "SSL3", 4) == 0) {
2311                    meth = SSLv3_client_method();
2312#ifdef HAVE_TLSV1_X
2313                } else if (strncasecmp(opt_arg, "TLS1.1", 6) == 0) {
2314                    meth = TLSv1_1_client_method();
2315                } else if (strncasecmp(opt_arg, "TLS1.2", 6) == 0) {
2316                    meth = TLSv1_2_client_method();
2317#endif
2318                } else if (strncasecmp(opt_arg, "TLS1", 4) == 0) {
2319                    meth = TLSv1_client_method();
2320                }
2321                break;
2322#endif
2323        }
2324    }
2325
2326    if (opt->ind != argc - 1) {
2327        fprintf(stderr, "%s: wrong number of arguments\n", argv[0]);
2328        usage(argv[0]);
2329    }
2330
2331    if (method == NO_METH) {
2332        method = GET;
2333    }
2334
2335    if (parse_url(apr_pstrdup(cntxt, opt->argv[opt->ind++]))) {
2336        fprintf(stderr, "%s: invalid URL\n", argv[0]);
2337        usage(argv[0]);
2338    }
2339
2340    if ((concurrency < 0) || (concurrency > MAX_CONCURRENCY)) {
2341        fprintf(stderr, "%s: Invalid Concurrency [Range 0..%d]\n",
2342                argv[0], MAX_CONCURRENCY);
2343        usage(argv[0]);
2344    }
2345
2346    if (concurrency > requests) {
2347        fprintf(stderr, "%s: Cannot use concurrency level greater than "
2348                "total number of requests\n", argv[0]);
2349        usage(argv[0]);
2350    }
2351
2352    if ((heartbeatres) && (requests > 150)) {
2353        heartbeatres = requests / 10;   /* Print line every 10% of requests */
2354        if (heartbeatres < 100)
2355            heartbeatres = 100; /* but never more often than once every 100
2356                                 * connections. */
2357    }
2358    else
2359        heartbeatres = 0;
2360
2361#ifdef USE_SSL
2362#ifdef RSAREF
2363    R_malloc_init();
2364#else
2365    CRYPTO_malloc_init();
2366#endif
2367    SSL_load_error_strings();
2368    SSL_library_init();
2369    bio_out=BIO_new_fp(stdout,BIO_NOCLOSE);
2370    bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
2371
2372    if (!(ssl_ctx = SSL_CTX_new(meth))) {
2373        BIO_printf(bio_err, "Could not initialize SSL Context.\n");
2374        ERR_print_errors(bio_err);
2375        exit(1);
2376    }
2377    SSL_CTX_set_options(ssl_ctx, SSL_OP_ALL);
2378#ifdef SSL_MODE_RELEASE_BUFFERS
2379    /* Keep memory usage as low as possible */
2380    SSL_CTX_set_mode (ssl_ctx, SSL_MODE_RELEASE_BUFFERS);
2381#endif
2382    if (ssl_cipher != NULL) {
2383        if (!SSL_CTX_set_cipher_list(ssl_ctx, ssl_cipher)) {
2384            fprintf(stderr, "error setting cipher list [%s]\n", ssl_cipher);
2385        ERR_print_errors_fp(stderr);
2386        exit(1);
2387    }
2388    }
2389    if (verbosity >= 3) {
2390        SSL_CTX_set_info_callback(ssl_ctx, ssl_state_cb);
2391    }
2392#endif
2393#ifdef SIGPIPE
2394    apr_signal(SIGPIPE, SIG_IGN);       /* Ignore writes to connections that
2395                                         * have been closed at the other end. */
2396#endif
2397    copyright();
2398    test();
2399    apr_pool_destroy(cntxt);
2400
2401    return 0;
2402}
2403