[thirdparty/squid.git] / test-suite / tcp-banger2.c

#include "config.h"

/*
 * On some systems, FD_SETSIZE is set to something lower than the
 * actual number of files which can be opened.  IRIX is one case,
 * NetBSD is another.  So here we increase FD_SETSIZE to our
 * configure-discovered maximum *before* any system includes.
 */
#define CHANGE_FD_SETSIZE 1

/* Cannot increase FD_SETSIZE on Linux */
#if defined(_SQUID_LINUX_)
#undef CHANGE_FD_SETSIZE
#define CHANGE_FD_SETSIZE 0
#endif

/* Cannot increase FD_SETSIZE on FreeBSD before 2.2.0, causes select(2)
 * to return EINVAL. */
/* Marian Durkovic <marian@svf.stuba.sk> */
/* Peter Wemm <peter@spinner.DIALix.COM> */
#if defined(_SQUID_FREEBSD_)
#include <osreldate.h>
#if __FreeBSD_version < 220000
#undef CHANGE_FD_SETSIZE
#define CHANGE_FD_SETSIZE 0
#endif
#endif

/* Increase FD_SETSIZE if SQUID_MAXFD is bigger */
#if CHANGE_FD_SETSIZE && SQUID_MAXFD > DEFAULT_FD_SETSIZE
#define FD_SETSIZE SQUID_MAXFD
#endif

#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#if HAVE_STDLIB_H
#include <stdlib.h>
#endif
#if HAVE_STDIO_H
#include <stdio.h>
#endif
#if HAVE_FCNTL_H
#include <fcntl.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
#if HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#if HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif
#if HAVE_SIGNAL_H
#include <signal.h>
#endif
#if HAVE_TIME_H
#include <time.h>
#endif
#if HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#if HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#if HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#if HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#if HAVE_ERRNO_H
#include <errno.h>
#endif
#if HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#if HAVE_ASSERT_H
#include <assert.h>
#endif

#define PROXY_PORT 3128
#define PROXY_ADDR "127.0.0.1"
#define READ_BUF_SZ 4096

static int proxy_port = PROXY_PORT;
static char *proxy_addr = PROXY_ADDR;
static char *progname;
static int reqpersec;
static int nrequests;
static int opt_ims = 0;
static int opt_range = 0;
static int max_connections = 64;
static time_t lifetime = 60;
static time_t process_lifetime = 86400;
static struct timeval now;
static long total_bytes_written = 0;
static long total_bytes_read = 0;
static int opt_checksum = 0;
static int accepted_status = 200;
FILE *trace_file = NULL;

typedef void (CB) (int, void *);

struct _f {
    CB *cb;
    CB *ccb;
    void *data;
    time_t start;
};
struct _request {
    int fd;
    char *url;
    char method[16];
    char requestbodyfile[256];
    char buf[READ_BUF_SZ * 2 + 1];
    int headfound;
    int validsize;
    int bodysize;
    int content_length;
    int status;
    int validstatus;
    long validsum;
    long sum;
};

struct _f FD[SQUID_MAXFD];
int nfds = 0;
int maxfd = 0;


static void
free_request(struct _request *r)
{
    if (r->url)
	free(r->url);
    free(r);
}

char *
mkrfc850(t)
     time_t *t;
{
    static char buf[128];
    struct tm *gmt = gmtime(t);
    buf[0] = '\0';
    (void) strftime(buf, 127, "%A, %d-%b-%y %H:%M:%S GMT", gmt);
    return buf;
}

void
fd_close(int fd)
{
    close(fd);
    if (FD[fd].ccb)
	FD[fd].ccb(fd, FD[fd].data);
    FD[fd].ccb = NULL;
    FD[fd].cb = NULL;
    FD[fd].data = NULL;
    nfds--;
    if (fd == maxfd) {
	while (fd > 0 && FD[fd].cb == NULL)
	    fd--;
	maxfd = fd;
    }
}

void
fd_open(int fd, CB * cb, void *data, CB * ccb)
{
    assert(fd < SQUID_MAXFD);
    FD[fd].cb = cb;
    FD[fd].ccb = ccb;
    FD[fd].data = data;
    FD[fd].start = now.tv_sec;
    if (fd > maxfd)
	maxfd = fd;
    nfds++;
}

void
sig_intr(int sig)
{
    fd_close(0);
    nfds++;
    printf("\rWaiting for open connections to finish...\n");
    signal(sig, SIG_DFL);
}

void
read_reply(int fd, void *data)
{
    struct _request *r = data;
    static unsigned char buf[READ_BUF_SZ];
    int len;
    int used = 0;
    if ((len = read(fd, buf, READ_BUF_SZ)) <= 0) {
	fd_close(fd);
	reqpersec++;
	nrequests++;
	return;
    }
    total_bytes_read += len;
    if (r->headfound < 2) {
	char *p, *header = NULL;
	int oldlen = strlen(r->buf);
	int newlen = oldlen + len;
	assert(oldlen <= READ_BUF_SZ);
	memcpy(r->buf + oldlen, buf, len);
	r->buf[newlen + 1] = '\0';
	for (p = r->buf; r->headfound < 2 && used < newlen; p++, used++) {
	    switch (*p) {
	    case '\n':
		r->headfound++;
		if (!header)
		    break;
		/* Decode header */
		if (strncasecmp(header, "HTTP/1", 6) == 0)
		    r->status = atoi(header + 9);
		if (strncasecmp(header, "Content-Length:", 15) == 0)
		    r->content_length = atoi(header + 15);
		if (strncasecmp(header, "X-Request-URI:", 14) == 0) {
		    /* Check URI */
		    if (strncmp(r->url, header + 15, strcspn(header + 15, "\r\n"))) {
			char url[8192];
			strncpy(url, header + 15, strcspn(header + 15, "\r\n"));
			url[strcspn(header + 15, "\r\n")] = '\n';
			fprintf(stderr, "ERROR: Sent %s received %s\n",
			    r->url, url);
		    }
		}
		header = NULL;
		break;
	    case '\r':
		break;
	    default:
		r->headfound = 0;
		if (!header)
		    header = p;
		break;
	    }
	}
	if (header) {
	    memmove(r->buf, header, newlen - (header - r->buf) + 1);
	}
	assert(used >= oldlen);
	used -= oldlen;
    }
    r->bodysize += len - used;
    if (opt_checksum) {
	for (; used < len; used++) {
	    r->sum += buf[used];
	}
    }
}

void
reply_done(int fd, void *data)
{
    struct _request *r = data;
    if (opt_range);		/* skip size checks for now */
    else if (r->bodysize != r->content_length && r->content_length >= 0)
	fprintf(stderr, "ERROR: %s got %d of %d bytes\n",
	    r->url, r->bodysize, r->content_length);
    else if (r->validsize >= 0) {
	if (r->validsize != r->bodysize)
	    fprintf(stderr, "WARNING: %s size mismatch wanted %d bytes got %d\n",
		r->url, r->validsize, r->bodysize);
	else if (opt_checksum && r->validsum != r->sum)
	    fprintf(stderr, "WARNING: %s invalid checksum wanted 0x%lx got 0x%lx\n",
		r->url, r->validsum, r->sum);
    }
    if (r->status != r->validstatus && r->validstatus)
	fprintf(stderr, "WARNING: %s status %d\n", r->url, r->status);
    if (trace_file) {
	fprintf(trace_file, "%s %s %s %d 0x%lx %d\n",
	    r->method, r->url, r->requestbodyfile, r->bodysize, r->sum, r->status);
    }
    free_request(r);
}

struct _request *
request(char *urlin)
{
    int s = -1, f = -1;
    char buf[4096];
    char msg[8192];
    char *method, *url, *file, *size, *checksum, *status;
    char urlbuf[8192];
    int len, len2;
    time_t w;
    struct stat st;
    struct sockaddr_in S;
    struct _request *r;
    if (*urlin == '\0')
	return NULL;
    if ((s = socket(PF_INET, SOCK_STREAM, 0)) < 0) {
	perror("socket");
	return NULL;
    }
    memset(&S, '\0', sizeof(struct sockaddr_in));
    S.sin_family = AF_INET;
    S.sin_port = htons(proxy_port);
    S.sin_addr.s_addr = inet_addr(proxy_addr);
    if (connect(s, (struct sockaddr *) &S, sizeof(S)) < 0) {
	close(s);
	perror("connect");
	return NULL;
    }
    strcpy(urlbuf, urlin);
    method = strtok(urlbuf, " ");
    url = strtok(NULL, " ");
    file = strtok(NULL, " ");
    size = strtok(NULL, " ");
    checksum = strtok(NULL, " ");
    status = strtok(NULL, " ");
    if (!url) {
	url = method;
	method = "GET";
    }
    if (!file)
	file = "-";
    if (!size)
	size = "-";
    if (!checksum)
	checksum = "-";
    r = calloc(1, sizeof *r);
    assert(r != NULL);
    r->url = strdup(url);
    assert(r->url);
    strcpy(r->method, method);
    strcpy(r->requestbodyfile, file);
    r->fd = s;
    if (size && strcmp(size, "-") != 0)
	r->validsize = atoi(size);
    else
	r->validsize = -1;	/* Unknown */
    if (checksum && strcmp(checksum, "-") != 0)
	r->validsum = strtoul(checksum, NULL, 0);
    r->content_length = -1;	/* Unknown */
    if (status && strcmp(status, "-") != 0)
	r->validstatus = strtoul(status, NULL, 0);
    else
	r->validstatus = accepted_status;
    msg[0] = '\0';
    sprintf(buf, "%s %s HTTP/1.0\r\n", method, url);
    strcat(msg, buf);
    strcat(msg, "Accept: */*\r\n");
    if (opt_ims && (lrand48() & 0x03) == 0) {
	w = time(NULL) - (lrand48() & 0x3FFFF);
	sprintf(buf, "If-Modified-Since: %s\r\n", mkrfc850(&w));
	strcat(msg, buf);
    }
    if (file && strcmp(file, "-") != 0) {
	f = open(file, O_RDONLY);
	if (f < 0) {
	    perror("open file");
	    exit(1);
	}
	fstat(f, &st);
	sprintf(buf, "Content-Length: %d\r\n", (int) st.st_size);
	strcat(msg, buf);
    }
    if (opt_range && (lrand48() & 0x03) == 0) {
	int len;
	int count = 0;
	strcat(msg, "Range: bytes=");
	while (((len = (int) lrand48()) & 0x03) == 0 || !count) {
	    const int offset = (int) lrand48();
	    if (count)
		strcat(msg, ",");
	    switch (lrand48() & 0x03) {
	    case 0:
		sprintf(buf, "-%d", len);
		break;
	    case 1:
		sprintf(buf, "%d-", offset);
		break;
	    default:
		sprintf(buf, "%d-%d", offset, offset + len);
		break;
	    }
	    strcat(msg, buf);
	    count++;
	}
	strcat(msg, "\r\n");
    }
    strcat(msg, "\r\n");
    len = strlen(msg);
    if ((len2 = write(s, msg, len)) != len) {
	close(s);
	perror("write request");
	free_request(r);
	return NULL;
    } else
	total_bytes_written += len2;
    if (f >= 0) {
	while ((len = read(f, buf, sizeof(buf))) > 0) {
	    len2 = write(s, buf, len);
	    if (len2 < 0) {
		perror("write body");
		close(s);
		free_request(r);
	    }
	}
	if (len < 0) {
	    perror("read body");
	    exit(1);
	}
    }
/*
 * if (fcntl(s, F_SETFL, O_NDELAY) < 0)
 * perror("fcntl O_NDELAY");
 */
    return r;
}

void
read_url(int fd, void *junk)
{
    struct _request *r;
    static char buf[8192];
    char *t;
    buf[0] = '\0';
    if (fgets(buf, 8191, stdin) == NULL) {
	printf("Done Reading URLS\n");
	fd_close(0);
	nfds++;
	return;
    }
    if (buf[0] == '\0')
	return;
    if ((t = strchr(buf, '\n')))
	*t = '\0';
    r = request(buf);
    if (!r) {
	max_connections = nfds - 1;
	printf("NOTE: max_connections set at %d\n", max_connections);
    } else {
	fd_open(r->fd, read_reply, r, reply_done);
    }
}

void
usage(void)
{
    fprintf(stderr, "usage: %s: -p port -h host -n max\n", progname);
    fprintf(stderr, " -t <tracefile>  Save request trace\n");
    fprintf(stderr, " -c              Check checksum agains trace\n");
    fprintf(stderr, " -i              Send random If-Modified-Since times\n");
    fprintf(stderr, " -l <seconds>    Connection lifetime timeout (default 60)\n");
    fprintf(stderr, " -s <status>     HTTP status expected (default 200, 0 == ignore)\n");
}

int
main(argc, argv)
     int argc;
     char *argv[];
{
    int i;
    int c;
    int dt;
    int j;
    fd_set R, R2;
    struct timeval start;
    struct timeval last;
    struct timeval to;
    setbuf(stdout, NULL);
    setbuf(stderr, NULL);
    progname = strdup(argv[0]);
    gettimeofday(&now, NULL);
    start = last = now;
    while ((c = getopt(argc, argv, "p:h:n:icrl:L:t:")) != -1) {
	switch (c) {
	case 'p':
	    proxy_port = atoi(optarg);
	    break;
	case 'h':
	    proxy_addr = strdup(optarg);
	    break;
	case 'n':
	    max_connections = atoi(optarg);
	    break;
	case 'i':
	    opt_ims = 1;
	    break;
	case 'l':
	    lifetime = (time_t) atoi(optarg);
	    break;
	case 'L':
	    process_lifetime = (time_t) atoi(optarg);
	    break;
	case 'c':
	    opt_checksum = 1;
	    break;
	case 't':
	    opt_checksum = 1;	/* Tracing requires checksums */
	    trace_file = fopen(optarg, "w");
	    assert(trace_file);
	    break;
	case 'r':
	    opt_range = 1;
	    break;
	default:
	    usage();
	    return 1;
	}
    }
    fd_open(0, read_url, NULL, NULL);
    nfds--;
    signal(SIGINT, sig_intr);
    signal(SIGPIPE, SIG_IGN);
    FD_ZERO(&R2);
    while (nfds || FD[0].cb) {
	FD_ZERO(&R);
	to.tv_sec = 0;
	to.tv_usec = 100000;
	if (nfds < max_connections && FD[0].cb)
	    FD_SET(0, &R);
	for (i = 1; i <= maxfd; i++) {
	    if (FD[i].cb == NULL)
		continue;
	    if (now.tv_sec - FD[i].start > lifetime) {
		fprintf(stderr, "WARNING: fd %d lifetime timeout\n", i);
		fd_close(i);
		continue;
	    }
	    FD_SET(i, &R);
	}
	if (select(maxfd + 1, &R, NULL, NULL, &to) < 0) {
	    fprintf(stderr, "maxfd=%d\n", maxfd);
	    if (errno != EINTR)
		perror("select");
	    continue;
	}
	gettimeofday(&now, NULL);
	for (i = 0; i <= maxfd; i++) {
	    if (!FD_ISSET(i, &R))
		continue;
	    FD[i].cb(i, FD[i].data);
	    if (nfds < max_connections && FD[0].cb) {
		j = 0;
		FD_SET(0, &R2);
		to.tv_sec = 0;
		to.tv_usec = 0;
		if (select(1, &R2, NULL, NULL, &to) == 1)
		    FD[0].cb(0, FD[0].data);
	    }
	}
	if (now.tv_sec > last.tv_sec) {
	    last = now;
	    dt = (int) (now.tv_sec - start.tv_sec);
	    printf("T+ %6d: %9d req (%+4d), %4d conn, %3d/sec avg, %dmb, %dkb/sec avg\n",
		dt,
		nrequests,
		reqpersec,
		nfds,
		(int) (nrequests / dt),
		(int) total_bytes_read / 1024 / 1024,
		(int) total_bytes_read / 1024 / dt);
	    reqpersec = 0;
	    if (dt > process_lifetime)
		exit(0);
	}
    }
    return 0;
}
Commit	Line	Data
58a96f63	1	#include "config.h"
6a54c60e	2
58a96f63	3	/*
	4	* On some systems, FD_SETSIZE is set to something lower than the
	5	* actual number of files which can be opened. IRIX is one case,
	6	* NetBSD is another. So here we increase FD_SETSIZE to our
	7	* configure-discovered maximum before any system includes.
	8	*/
	9	#define CHANGE_FD_SETSIZE 1
735246e8	10
58a96f63	11	/* Cannot increase FD_SETSIZE on Linux */
	12	#if defined(_SQUID_LINUX_)
	13	#undef CHANGE_FD_SETSIZE
	14	#define CHANGE_FD_SETSIZE 0
	15	#endif
	16
	17	/* Cannot increase FD_SETSIZE on FreeBSD before 2.2.0, causes select(2)
	18	* to return EINVAL. */
	19	/* Marian Durkovic <marian@svf.stuba.sk> */
	20	/* Peter Wemm <peter@spinner.DIALix.COM> */
	21	#if defined(_SQUID_FREEBSD_)
	22	#include <osreldate.h>
	23	#if __FreeBSD_version < 220000
	24	#undef CHANGE_FD_SETSIZE
	25	#define CHANGE_FD_SETSIZE 0
	26	#endif
	27	#endif
	28
	29	/* Increase FD_SETSIZE if SQUID_MAXFD is bigger */
	30	#if CHANGE_FD_SETSIZE && SQUID_MAXFD > DEFAULT_FD_SETSIZE
	31	#define FD_SETSIZE SQUID_MAXFD
	32	#endif
	33
	34	#if HAVE_UNISTD_H
735246e8	35	#include <unistd.h>
58a96f63	36	#endif
58a96f63	37	#if HAVE_STDLIB_H
735246e8	38	#include <stdlib.h>
58a96f63	39	#endif
	40	#if HAVE_STDIO_H
	41	#include <stdio.h>
	42	#endif
	43	#if HAVE_FCNTL_H
735246e8	44	#include <fcntl.h>
58a96f63	45	#endif
58a96f63	46	#ifdef HAVE_STRING_H
735246e8	47	#include <string.h>
58a96f63	48	#endif
58a96f63	49	#ifdef HAVE_STRINGS_H
735246e8	50	#include <strings.h>
58a96f63	51	#endif
58a96f63	52	#if HAVE_SYS_TYPES_H
735246e8	53	#include <sys/types.h>
58a96f63	54	#endif
58a96f63	55	#if HAVE_SYS_SELECT_H
735246e8	56	#include <sys/select.h>
58a96f63	57	#endif
58a96f63	58	#if HAVE_SIGNAL_H
735246e8	59	#include <signal.h>
58a96f63	60	#endif
58a96f63	61	#if HAVE_TIME_H
735246e8	62	#include <time.h>
58a96f63	63	#endif
58a96f63	64	#if HAVE_SYS_TIME_H
735246e8	65	#include <sys/time.h>
58a96f63	66	#endif
58a96f63	67	#if HAVE_SYS_SOCKET_H
735246e8	68	#include <sys/socket.h>
58a96f63	69	#endif
58a96f63	70	#if HAVE_NETINET_IN_H
735246e8	71	#include <netinet/in.h>
58a96f63	72	#endif
58a96f63	73	#if HAVE_ARPA_INET_H
735246e8	74	#include <arpa/inet.h>
58a96f63	75	#endif
58a96f63	76	#if HAVE_ERRNO_H
735246e8	77	#include <errno.h>
58a96f63	78	#endif
14ff08f1	79	#if HAVE_SYS_STAT_H
	80	#include <sys/stat.h>
	81	#endif
	82	#if HAVE_ASSERT_H
	83	#include <assert.h>
	84	#endif
735246e8	85
	86	#define PROXY_PORT 3128
	87	#define PROXY_ADDR "127.0.0.1"
735246e8	88	#define READ_BUF_SZ 4096
	89
	90	static int proxy_port = PROXY_PORT;
	91	static char *proxy_addr = PROXY_ADDR;
	92	static char *progname;
	93	static int reqpersec;
	94	static int nrequests;
	95	static int opt_ims = 0;
c4248266	96	static int opt_range = 0;
735246e8	97	static int max_connections = 64;
33fda8cd	98	static time_t lifetime = 60;
15dd95c1	99	static time_t process_lifetime = 86400;
33fda8cd	100	static struct timeval now;
14ff08f1	101	static long total_bytes_written = 0;
	102	static long total_bytes_read = 0;
	103	static int opt_checksum = 0;
55095043	104	static int accepted_status = 200;
ed2ab7db	105	FILE *trace_file = NULL;
735246e8	106
	107	typedef void (CB) (int, void *);
	108
	109	struct _f {
	110	CB *cb;
14ff08f1	111	CB *ccb;
735246e8	112	void *data;
33fda8cd	113	time_t start;
735246e8	114	};
14ff08f1	115	struct _request {
14ff08f1	116	int fd;
7d97d03c	117	char *url;
ed2ab7db	118	char method[16];
ed2ab7db	119	char requestbodyfile[256];
14ff08f1	120	char buf[READ_BUF_SZ * 2 + 1];
14ff08f1	121	int headfound;
2444b689	122	int validsize;
	123	int bodysize;
	124	int content_length;
55095043	125	int status;
55095043	126	int validstatus;
14ff08f1	127	long validsum;
14ff08f1	128	long sum;
14ff08f1	129	};
735246e8	130
b61d6f3d	131	struct _f FD[SQUID_MAXFD];
735246e8	132	int nfds = 0;
	133	int maxfd = 0;
	134
	135
7d97d03c	136	static void
	137	free_request(struct _request *r)
	138	{
55095043	139	if (r->url)
	140	free(r->url);
	141	free(r);
7d97d03c	142	}
7d97d03c	143
735246e8	144	char *
735246e8	145	mkrfc850(t)
6a54c60e	146	time_t *t;
735246e8	147	{
	148	static char buf[128];
	149	struct tm *gmt = gmtime(t);
	150	buf[0] = '\0';
	151	(void) strftime(buf, 127, "%A, %d-%b-%y %H:%M:%S GMT", gmt);
	152	return buf;
	153	}
	154
	155	void
	156	fd_close(int fd)
	157	{
	158	close(fd);
14ff08f1	159	if (FD[fd].ccb)
	160	FD[fd].ccb(fd, FD[fd].data);
	161	FD[fd].ccb = NULL;
735246e8	162	FD[fd].cb = NULL;
	163	FD[fd].data = NULL;
	164	nfds--;
	165	if (fd == maxfd) {
aeb649da	166	while (fd > 0 && FD[fd].cb == NULL)
6a54c60e	167	fd--;
735246e8	168	maxfd = fd;
	169	}
	170	}
	171
	172	void
3cd80ef8	173	fd_open(int fd, CB * cb, void data, CB ccb)
735246e8	174	{
b61d6f3d	175	assert(fd < SQUID_MAXFD);
735246e8	176	FD[fd].cb = cb;
14ff08f1	177	FD[fd].ccb = ccb;
735246e8	178	FD[fd].data = data;
33fda8cd	179	FD[fd].start = now.tv_sec;
735246e8	180	if (fd > maxfd)
	181	maxfd = fd;
	182	nfds++;
	183	}
	184
	185	void
	186	sig_intr(int sig)
	187	{
6a54c60e	188	fd_close(0);
14ff08f1	189	nfds++;
6a54c60e	190	printf("\rWaiting for open connections to finish...\n");
6a54c60e	191	signal(sig, SIG_DFL);
735246e8	192	}
735246e8	193
6a54c60e	194	void
735246e8	195	read_reply(int fd, void *data)
735246e8	196	{
14ff08f1	197	struct _request *r = data;
	198	static unsigned char buf[READ_BUF_SZ];
	199	int len;
1707acbe	200	int used = 0;
3cd80ef8	201	if ((len = read(fd, buf, READ_BUF_SZ)) <= 0) {
6a54c60e	202	fd_close(fd);
	203	reqpersec++;
	204	nrequests++;
1707acbe	205	return;
	206	}
	207	total_bytes_read += len;
	208	if (r->headfound < 2) {
	209	char p, header = NULL;
	210	int oldlen = strlen(r->buf);
	211	int newlen = oldlen + len;
	212	assert(oldlen <= READ_BUF_SZ);
	213	memcpy(r->buf + oldlen, buf, len);
	214	r->buf[newlen + 1] = '\0';
	215	for (p = r->buf; r->headfound < 2 && used < newlen; p++, used++) {
	216	switch (*p) {
	217	case '\n':
	218	r->headfound++;
	219	if (!header)
14ff08f1	220	break;
1707acbe	221	/* Decode header */
55095043	222	if (strncasecmp(header, "HTTP/1", 6) == 0)
55095043	223	r->status = atoi(header + 9);
1707acbe	224	if (strncasecmp(header, "Content-Length:", 15) == 0)
	225	r->content_length = atoi(header + 15);
	226	if (strncasecmp(header, "X-Request-URI:", 14) == 0) {
	227	/* Check URI */
	228	if (strncmp(r->url, header + 15, strcspn(header + 15, "\r\n"))) {
	229	char url[8192];
	230	strncpy(url, header + 15, strcspn(header + 15, "\r\n"));
	231	url[strcspn(header + 15, "\r\n")] = '\n';
	232	fprintf(stderr, "ERROR: Sent %s received %s\n",
	233	r->url, url);
	234	}
14ff08f1	235	}
1707acbe	236	header = NULL;
	237	break;
	238	case '\r':
	239	break;
	240	default:
	241	r->headfound = 0;
	242	if (!header)
	243	header = p;
	244	break;
14ff08f1	245	}
14ff08f1	246	}
1707acbe	247	if (header) {
	248	memmove(r->buf, header, newlen - (header - r->buf) + 1);
	249	}
	250	assert(used >= oldlen);
	251	used -= oldlen;
	252	}
	253	r->bodysize += len - used;
	254	if (opt_checksum) {
	255	for (; used < len; used++) {
	256	r->sum += buf[used];
14ff08f1	257	}
6a54c60e	258	}
735246e8	259	}
735246e8	260
14ff08f1	261	void
14ff08f1	262	reply_done(int fd, void *data)
735246e8	263	{
14ff08f1	264	struct _request *r = data;
3cd80ef8	265	if (opt_range); /* skip size checks for now */
2444b689	266	else if (r->bodysize != r->content_length && r->content_length >= 0)
3cd80ef8	267	fprintf(stderr, "ERROR: %s got %d of %d bytes\n",
3cd80ef8	268	r->url, r->bodysize, r->content_length);
14ff08f1	269	else if (r->validsize >= 0) {
14ff08f1	270	if (r->validsize != r->bodysize)
3cd80ef8	271	fprintf(stderr, "WARNING: %s size mismatch wanted %d bytes got %d\n",
3cd80ef8	272	r->url, r->validsize, r->bodysize);
14ff08f1	273	else if (opt_checksum && r->validsum != r->sum)
3cd80ef8	274	fprintf(stderr, "WARNING: %s invalid checksum wanted 0x%lx got 0x%lx\n",
3cd80ef8	275	r->url, r->validsum, r->sum);
ed2ab7db	276	}
55095043	277	if (r->status != r->validstatus && r->validstatus)
55095043	278	fprintf(stderr, "WARNING: %s status %d\n", r->url, r->status);
ed2ab7db	279	if (trace_file) {
55095043	280	fprintf(trace_file, "%s %s %s %d 0x%lx %d\n",
55095043	281	r->method, r->url, r->requestbodyfile, r->bodysize, r->sum, r->status);
14ff08f1	282	}
7d97d03c	283	free_request(r);
14ff08f1	284	}
	285
	286	struct _request *
	287	request(char *urlin)
	288	{
3cd80ef8	289	int s = -1, f = -1;
735246e8	290	char buf[4096];
14ff08f1	291	char msg[8192];
55095043	292	char method, url, file, size, checksum, status;
14ff08f1	293	char urlbuf[8192];
3cd80ef8	294	int len, len2;
735246e8	295	time_t w;
14ff08f1	296	struct stat st;
735246e8	297	struct sockaddr_in S;
14ff08f1	298	struct _request *r;
206b24db	299	if (*urlin == '\0')
206b24db	300	return NULL;
735246e8	301	if ((s = socket(PF_INET, SOCK_STREAM, 0)) < 0) {
735246e8	302	perror("socket");
14ff08f1	303	return NULL;
735246e8	304	}
	305	memset(&S, '\0', sizeof(struct sockaddr_in));
	306	S.sin_family = AF_INET;
	307	S.sin_port = htons(proxy_port);
	308	S.sin_addr.s_addr = inet_addr(proxy_addr);
6a54c60e	309	if (connect(s, (struct sockaddr *) &S, sizeof(S)) < 0) {
735246e8	310	close(s);
735246e8	311	perror("connect");
14ff08f1	312	return NULL;
735246e8	313	}
3cd80ef8	314	strcpy(urlbuf, urlin);
	315	method = strtok(urlbuf, " ");
	316	url = strtok(NULL, " ");
	317	file = strtok(NULL, " ");
	318	size = strtok(NULL, " ");
	319	checksum = strtok(NULL, " ");
55095043	320	status = strtok(NULL, " ");
14ff08f1	321	if (!url) {
3cd80ef8	322	url = method;
3cd80ef8	323	method = "GET";
14ff08f1	324	}
ed2ab7db	325	if (!file)
3cd80ef8	326	file = "-";
ed2ab7db	327	if (!size)
3cd80ef8	328	size = "-";
ed2ab7db	329	if (!checksum)
3cd80ef8	330	checksum = "-";
	331	r = calloc(1, sizeof *r);
	332	assert(r != NULL);
7d97d03c	333	r->url = strdup(url);
7d97d03c	334	assert(r->url);
ed2ab7db	335	strcpy(r->method, method);
ed2ab7db	336	strcpy(r->requestbodyfile, file);
14ff08f1	337	r->fd = s;
3cd80ef8	338	if (size && strcmp(size, "-") != 0)
3cd80ef8	339	r->validsize = atoi(size);
14ff08f1	340	else
3cd80ef8	341	r->validsize = -1; /* Unknown */
	342	if (checksum && strcmp(checksum, "-") != 0)
	343	r->validsum = strtoul(checksum, NULL, 0);
	344	r->content_length = -1; /* Unknown */
55095043	345	if (status && strcmp(status, "-") != 0)
	346	r->validstatus = strtoul(status, NULL, 0);
	347	else
	348	r->validstatus = accepted_status;
14ff08f1	349	msg[0] = '\0';
3cd80ef8	350	sprintf(buf, "%s %s HTTP/1.0\r\n", method, url);
14ff08f1	351	strcat(msg, buf);
14ff08f1	352	strcat(msg, "Accept: /\r\n");
735246e8	353	if (opt_ims && (lrand48() & 0x03) == 0) {
735246e8	354	w = time(NULL) - (lrand48() & 0x3FFFF);
14ff08f1	355	sprintf(buf, "If-Modified-Since: %s\r\n", mkrfc850(&w));
3cd80ef8	356	strcat(msg, buf);
735246e8	357	}
3cd80ef8	358	if (file && strcmp(file, "-") != 0) {
3cd80ef8	359	f = open(file, O_RDONLY);
14ff08f1	360	if (f < 0) {
	361	perror("open file");
	362	exit(1);
	363	}
	364	fstat(f, &st);
3cd80ef8	365	sprintf(buf, "Content-Length: %d\r\n", (int) st.st_size);
3cd80ef8	366	strcat(msg, buf);
14ff08f1	367	}
c4248266	368	if (opt_range && (lrand48() & 0x03) == 0) {
	369	int len;
	370	int count = 0;
	371	strcat(msg, "Range: bytes=");
3cd80ef8	372	while (((len = (int) lrand48()) & 0x03) == 0 \|\| !count) {
c4248266	373	const int offset = (int) lrand48();
	374	if (count)
	375	strcat(msg, ",");
	376	switch (lrand48() & 0x03) {
3cd80ef8	377	case 0:
	378	sprintf(buf, "-%d", len);
	379	break;
	380	case 1:
	381	sprintf(buf, "%d-", offset);
	382	break;
	383	default:
	384	sprintf(buf, "%d-%d", offset, offset + len);
	385	break;
c4248266	386	}
3cd80ef8	387	strcat(msg, buf);
c4248266	388	count++;
c4248266	389	}
3cd80ef8	390	strcat(msg, "\r\n");
c4248266	391	}
14ff08f1	392	strcat(msg, "\r\n");
14ff08f1	393	len = strlen(msg);
3cd80ef8	394	if ((len2 = write(s, msg, len)) != len) {
735246e8	395	close(s);
14ff08f1	396	perror("write request");
7d97d03c	397	free_request(r);
14ff08f1	398	return NULL;
	399	} else
	400	total_bytes_written += len2;
3cd80ef8	401	if (f >= 0) {
3cd80ef8	402	while ((len = read(f, buf, sizeof(buf))) > 0) {
14ff08f1	403	len2 = write(s, buf, len);
	404	if (len2 < 0) {
	405	perror("write body");
	406	close(s);
7d97d03c	407	free_request(r);
14ff08f1	408	}
	409	}
	410	if (len < 0) {
	411	perror("read body");
	412	exit(1);
	413	}
735246e8	414	}
735246e8	415	/*
6a54c60e	416	* if (fcntl(s, F_SETFL, O_NDELAY) < 0)
	417	* perror("fcntl O_NDELAY");
	418	*/
14ff08f1	419	return r;
735246e8	420	}
	421
	422	void
	423	read_url(int fd, void *junk)
	424	{
14ff08f1	425	struct _request *r;
735246e8	426	static char buf[8192];
735246e8	427	char *t;
206b24db	428	buf[0] = '\0';
735246e8	429	if (fgets(buf, 8191, stdin) == NULL) {
	430	printf("Done Reading URLS\n");
	431	fd_close(0);
14ff08f1	432	nfds++;
735246e8	433	return;
735246e8	434	}
206b24db	435	if (buf[0] == '\0')
206b24db	436	return;
735246e8	437	if ((t = strchr(buf, '\n')))
735246e8	438	*t = '\0';
14ff08f1	439	r = request(buf);
14ff08f1	440	if (!r) {
6a54c60e	441	max_connections = nfds - 1;
735246e8	442	printf("NOTE: max_connections set at %d\n", max_connections);
14ff08f1	443	} else {
14ff08f1	444	fd_open(r->fd, read_reply, r, reply_done);
735246e8	445	}
735246e8	446	}
	447
	448	void
	449	usage(void)
	450	{
ed2ab7db	451	fprintf(stderr, "usage: %s: -p port -h host -n max\n", progname);
	452	fprintf(stderr, " -t <tracefile> Save request trace\n");
	453	fprintf(stderr, " -c Check checksum agains trace\n");
	454	fprintf(stderr, " -i Send random If-Modified-Since times\n");
	455	fprintf(stderr, " -l <seconds> Connection lifetime timeout (default 60)\n");
55095043	456	fprintf(stderr, " -s <status> HTTP status expected (default 200, 0 == ignore)\n");
735246e8	457	}
735246e8	458
6a54c60e	459	int
735246e8	460	main(argc, argv)
6a54c60e	461	int argc;
6a54c60e	462	char *argv[];
735246e8	463	{
	464	int i;
	465	int c;
	466	int dt;
14ff08f1	467	int j;
3cd80ef8	468	fd_set R, R2;
735246e8	469	struct timeval start;
735246e8	470	struct timeval last;
	471	struct timeval to;
	472	setbuf(stdout, NULL);
	473	setbuf(stderr, NULL);
	474	progname = strdup(argv[0]);
14ff08f1	475	gettimeofday(&now, NULL);
14ff08f1	476	start = last = now;
15dd95c1	477	while ((c = getopt(argc, argv, "p:h:n:icrl:L:t:")) != -1) {
6a54c60e	478	switch (c) {
735246e8	479	case 'p':
6a54c60e	480	proxy_port = atoi(optarg);
6a54c60e	481	break;
735246e8	482	case 'h':
6a54c60e	483	proxy_addr = strdup(optarg);
6a54c60e	484	break;
735246e8	485	case 'n':
6a54c60e	486	max_connections = atoi(optarg);
6a54c60e	487	break;
735246e8	488	case 'i':
6a54c60e	489	opt_ims = 1;
6a54c60e	490	break;
33fda8cd	491	case 'l':
	492	lifetime = (time_t) atoi(optarg);
	493	break;
15dd95c1	494	case 'L':
	495	process_lifetime = (time_t) atoi(optarg);
	496	break;
14ff08f1	497	case 'c':
	498	opt_checksum = 1;
	499	break;
ed2ab7db	500	case 't':
3cd80ef8	501	opt_checksum = 1; /* Tracing requires checksums */
3cd80ef8	502	trace_file = fopen(optarg, "w");
ed2ab7db	503	assert(trace_file);
ed2ab7db	504	break;
c4248266	505	case 'r':
	506	opt_range = 1;
	507	break;
735246e8	508	default:
6a54c60e	509	usage();
	510	return 1;
	511	}
735246e8	512	}
14ff08f1	513	fd_open(0, read_url, NULL, NULL);
14ff08f1	514	nfds--;
735246e8	515	signal(SIGINT, sig_intr);
5616e319	516	signal(SIGPIPE, SIG_IGN);
14ff08f1	517	FD_ZERO(&R2);
14ff08f1	518	while (nfds \|\| FD[0].cb) {
735246e8	519	FD_ZERO(&R);
	520	to.tv_sec = 0;
	521	to.tv_usec = 100000;
	522	if (nfds < max_connections && FD[0].cb)
	523	FD_SET(0, &R);
	524	for (i = 1; i <= maxfd; i++) {
	525	if (FD[i].cb == NULL)
	526	continue;
33fda8cd	527	if (now.tv_sec - FD[i].start > lifetime) {
a19d9329	528	fprintf(stderr, "WARNING: fd %d lifetime timeout\n", i);
33fda8cd	529	fd_close(i);
	530	continue;
	531	}
735246e8	532	FD_SET(i, &R);
	533	}
	534	if (select(maxfd + 1, &R, NULL, NULL, &to) < 0) {
14ff08f1	535	fprintf(stderr, "maxfd=%d\n", maxfd);
735246e8	536	if (errno != EINTR)
6a54c60e	537	perror("select");
735246e8	538	continue;
735246e8	539	}
14ff08f1	540	gettimeofday(&now, NULL);
735246e8	541	for (i = 0; i <= maxfd; i++) {
	542	if (!FD_ISSET(i, &R))
	543	continue;
	544	FD[i].cb(i, FD[i].data);
3cd80ef8	545	if (nfds < max_connections && FD[0].cb) {
	546	j = 0;
	547	FD_SET(0, &R2);
	548	to.tv_sec = 0;
	549	to.tv_usec = 0;
	550	if (select(1, &R2, NULL, NULL, &to) == 1)
14ff08f1	551	FD[0].cb(0, FD[0].data);
14ff08f1	552	}
735246e8	553	}
735246e8	554	if (now.tv_sec > last.tv_sec) {
6a54c60e	555	last = now;
6a54c60e	556	dt = (int) (now.tv_sec - start.tv_sec);
14ff08f1	557	printf("T+ %6d: %9d req (%+4d), %4d conn, %3d/sec avg, %dmb, %dkb/sec avg\n",
6a54c60e	558	dt,
	559	nrequests,
	560	reqpersec,
	561	nfds,
14ff08f1	562	(int) (nrequests / dt),
3cd80ef8	563	(int) total_bytes_read / 1024 / 1024,
3cd80ef8	564	(int) total_bytes_read / 1024 / dt);
6a54c60e	565	reqpersec = 0;
15dd95c1	566	if (dt > process_lifetime)
15dd95c1	567	exit(0);
735246e8	568	}
	569	}
	570	return 0;
	571	}