Category : UNIX Files
Archive : UUPC11YT.ZIP
Filename : TPROT.C
Output of file : TPROT.C contained in archive : UUPC11YT.ZIP
#ifndef lint
static char sccsid[] = "@(#)tio.c 4.9 (Berkeley) 5/4/88";
#endif
#include
#include "uucp.h"
#include
#include
#include
extern int pkfail();
#define TPACKSIZE 512
#define TBUFSIZE 1024
#define min(a,b) (((a)<(b))?(a):(b))
/*
* htonl is a function that converts a long from host
* order to network order
* ntohl is a function that converts a long from network
* order to host order
*
* network order is 0 1 2 3 (bytes in a long)
* host order on a vax is 3 2 1 0
* host order on a pdp11 is 1 0 3 2
* host order on a 68000 is 0 1 2 3
* most other machines are 0 1 2 3
*/
struct tbuf {
long t_nbytes;
char t_data[TBUFSIZE];
};
extern jmp_buf Failbuf;
extern long Bytes_Sent, Bytes_Received;
twrmsg(type, str, fn)
char type;
register char *str;
{
char bufr[TBUFSIZE];
register char *s;
int len, i;
if(setjmp(Failbuf))
return FAIL;
signal(SIGALRM, pkfail);
alarm(MAXMSGTIME*5);
bufr[0] = type;
s = &bufr[1];
while (*str)
*s++ = *str++;
*s = '\0';
if (*(--s) == '\n')
*s = '\0';
len = strlen(bufr) + 1;
if ((i = len % TPACKSIZE)) {
len = len + TPACKSIZE - i;
bufr[len - 1] = '\0';
}
twrblk(bufr, len, fn);
alarm(0);
return SUCCESS;
}
trdmsg(str, fn)
register char *str;
{
int len, cnt = 0;
if(setjmp(Failbuf))
return FAIL;
signal(SIGALRM, pkfail);
alarm(MAXMSGTIME*5);
for (;;) {
len = read(fn, str, TPACKSIZE);
if (len <= 0) {
alarm(0);
return FAIL;
}
str += len;
cnt += len;
if (*(str - 1) == '\0' && (cnt % TPACKSIZE) == 0)
break;
}
alarm(0);
return SUCCESS;
}
twrdata(fp1, fn)
FILE *fp1;
{
struct tbuf bufr;
register int len;
int ret, mil;
struct timeb t1, t2;
long bytes;
char text[TBUFSIZE];
float ft;
if(setjmp(Failbuf))
return FAIL;
signal(SIGALRM, pkfail);
bytes = 0L;
#ifdef USG
time(&t1.time);
t1.millitm = 0;
#else !USG
ftime(&t1);
#endif !USG
while ((len = read(fileno(fp1), bufr.t_data, TBUFSIZE)) > 0) {
bytes += len;
bufr.t_nbytes = htonl((long)len);
DEBUG(8,"twrdata sending %d bytes\n",len);
len += sizeof(long);
alarm(MAXMSGTIME*5);
ret = twrblk((char *)&bufr, len, fn);
alarm(0);
if (ret != len)
return FAIL;
if (len != TBUFSIZE+sizeof(long))
break;
}
if (len < 0) {
alarm(0);
return FAIL;
}
bufr.t_nbytes = 0;
len = sizeof(long);
alarm(MAXMSGTIME*5);
ret = twrblk((char *)&bufr, len, fn);
alarm(0);
if (ret != len)
return FAIL;
#ifdef USG
time(&t2.time);
t2.millitm = 0;
#else !USG
ftime(&t2);
#endif !USG
Now = t2;
t2.time -= t1.time;
mil = t2.millitm - t1.millitm;
if (mil < 0) {
--t2.time;
mil += 1000;
}
ft = (float)t2.time + (float)mil/1000.;
if (ft == 0.0) /* avoid /0.0 ... kre */
ft = 1.0;
sprintf(text, "sent data %ld bytes %.2f secs %ld bps",
bytes, ft, (long)((float)bytes*8./ft));
sysacct(bytes, t2.time);
Bytes_Sent += bytes;
DEBUG(1, "%s\n", text);
log_xferstats(text);
return SUCCESS;
}
trddata(fn, fp2)
FILE *fp2;
{
register int len, nread;
char bufr[TBUFSIZE];
struct timeb t1, t2;
int mil;
long bytes, Nbytes;
float ft;
if(setjmp(Failbuf))
return FAIL;
signal(SIGALRM, pkfail);
#ifdef USG
time(&t1.time);
t1.millitm = 0;
#else !USG
ftime(&t1);
#endif !USG
bytes = 0L;
for (;;) {
alarm(MAXMSGTIME*5);
len = trdblk((char *)&Nbytes,sizeof Nbytes,fn);
alarm(0);
if (len != sizeof Nbytes)
return FAIL;
Nbytes = ntohl(Nbytes);
DEBUG(8,"trddata expecting %ld bytes\n",Nbytes);
nread = Nbytes;
if (nread == 0)
break;
alarm(MAXMSGTIME*5);
len = trdblk(bufr, nread, fn);
alarm(0);
if (len < 0) {
return FAIL;
}
bytes += len;
DEBUG(11,"trddata got %ld\n",bytes);
if (write(fileno(fp2), bufr, len) != len) {
alarm(0);
return FAIL;
}
}
#ifdef USG
time(&t2.time);
t2.millitm = 0;
#else !USG
ftime(&t2);
#endif !USG
Now = t2;
t2.time -= t1.time;
mil = t2.millitm - t1.millitm;
if (mil < 0) {
--t2.time;
mil += 1000;
}
ft = (float)t2.time + (float)mil/1000.;
if (ft == 0.0)
ft = 1.0;
sprintf(bufr, "received data %ld bytes %.2f secs %ld bps",
bytes, ft, (long)((float)bytes*8./ft));
sysacct(bytes, t2.time);
Bytes_Received += bytes;
DEBUG(1, "%s\n", bufr);
log_xferstats(bufr);
return SUCCESS;
}
#if !defined(BSD4_2) && !defined(USG)
#define TC 1024
static int tc = TC;
#endif !BSD4_2 && !USG
trdblk(blk, len, fn)
register int len;
char *blk;
{
register int i, ret;
#if !defined(BSD4_2) && !defined(USG)
/* call ultouch occasionally */
if (--tc < 0) {
tc = TC;
ultouch();
}
#endif !BSD4_2 && !USG
for (i = 0; i < len; i += ret) {
ret = read(fn, blk, len - i);
if (ret < 0)
return FAIL;
blk += ret;
if (ret == 0)
return i;
}
return i;
}
twrblk(blk, len, fn)
register char *blk;
{
#if !defined(BSD4_2) && !defined(USG)
/* call ultouch occasionally */
if (--tc < 0) {
tc = TC;
ultouch();
}
#endif !BSD4_2 && !USG
return write(fn, blk, len);
}
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