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1.1 root 1: /* D.L.Buck and Associates, Inc. - 8/27/84
2: *
3: * COPYRIGHT NOTICE:
4: * Copyright c 8/27/84 - An unpublished work by
5: * D.L.Buck and Associates, Inc.
6: *
7: * PROPRIETARY RIGHTS NOTICE:
8: * All rights reserved. This document and program contains
9: * proprietary information of D.L.Buck and Associates,Inc.
10: * of San Jose, California, U.S.A., embodying confidential
11: * information, ideas, and expressions, no part of which
12: * may be reproduced, or transmitted in any form or by any
13: * means, electronic, mechanical, or otherwise, without
14: * the written permission of D.L.Buck and Associates, Inc.
15: *
16: * NAME
17: * bscmon - BISYNC communications monitoring utility
18: *
19: * SYNOPSIS
20: * bscmon [-data] [-host=<hostname>] [file]
21: * [-dev=<devname>]
22: *
23: * DESCRIPTION
24: * bscmon records trace information from the BISYNC trace device
25: * (/dev/bsc*tr) while BISYNC communications are taking place.
26: * Information is recorded either in a data file for processing
27: * by bsctrace later, or sent to stdout for immediate processing
28: * by bsctrace via a pipe.
29: *
30: * ALGORITHM
31: * 1. open device for reading
32: * a. if host specified, read host configuration file for
33: * device name (name = /dev/<hostdev>tr).
34: * b. if device specified, open it.
35: * c. if none specified (or found in host configuration file)
36: * open /dev/bsctr.
37: * 2. open data file (if specified). stdout is default.
38: * 3. while not EOF, read TBUFSIZE bytes from device and put in file or
39: * stdout.
40: * 4. close device (and file, if specified).
41: */
42: #include <sys/types.h>
43: #include "local.h"
44: #include <bsc/bsctr.h>
45: #include <stdio.h>
46:
47: #ifndef lint
48: static char sccsid[] = "@(#)bscmon.c 1.3 REL";
49: #endif
50:
51: #define YES 1
52: #define NO 0
53:
54: char pathname[50] = "/usr/lib/bscbatch/"; /* path to host config file */
55: void exit();
56: char *strcpy(), *strcat();
57:
58: main(argc,argv)
59: int argc;
60: char *argv[];
61: {
62: register unsigned i;
63: int data = NO; /* should trace include actual data being
64: sent and received? */
65: char devname[20]; /* contains trace device name */
66: char dbuff[TBUFSIZE]; /* trace data is read in here */
67: char buff[100];
68: char *fgets(); /* get a line from a file */
69:
70: FILE *fopen(); /* function opens files */
71: FILE *fptr; /* file pointer for fopen */
72:
73: int outfd; /* output file descriptor */
74: int devfd; /* device file descriptor */
75:
76: /* set default values */
77: outfd = 1; /* 1 is stdout's file descriptor */
78: strcpy(devname,"/dev/bsctr");
79:
80: /* get options from command line */
81: for (i=1;i<argc;++i) {
82: /* if [-data] specified,
83: * save actual data being sent and received
84: */
85: if (strcmp(argv[i],"-data") == 0)
86: { data = YES;
87: continue; }
88:
89: /* if [-host=<hostname>] specified, get device name from
90: host configuration file in lib/bscbatch */
91: if (strncmp(argv[i],"-host=",6) == 0) {
92: strcat(pathname,&argv[i][6]);
93:
94: if ((fptr = fopen(pathname,"r")) == NULL) {
95: fprintf(stderr,
96: "bscmon: <%s> has no configuration file\n",
97: &argv[i][6]);
98: exit(1); }
99:
100: while(fgets(buff,sizeof buff,fptr) != NULL)
101: if (strncmp(buff,"DEVICE=",7) == 0) {
102: buff[strlen(buff)-1] = '\0';
103: sprintf(devname,"%str",&buff[7]);
104: }
105: fclose(fptr);
106: continue;
107: }
108:
109: /* if [-dev=<devname>] specified,
110: * get device name from argv[i]
111: */
112: if (strncmp(argv[i],"-dev=",5) == 0) {
113: strcpy(devname,&argv[i][5]);
114: continue; }
115:
116: /* if [file] specified, open it to outptr */
117: if (argv[i][0] != '-') {
118: /* create mode 0666 sets this file's read/write
119: permission for everyone */
120: if ((outfd = creat(argv[i],0666)) == -1)
121: { fprintf(stderr,
122: "bscmon: can't create <%s>\n",&argv[i]);
123: exit(1); }
124: continue;
125: }
126:
127: /* bad parameter */
128: fprintf(stderr,"bscmon: invalid parameter <%s>\n",argv[i]);
129: exit(1);
130: }
131:
132: /* open trace device */
133: if ((devfd = open(devname,0)) == -1) /* '0' is read only flag */
134: { fprintf(stderr,"bscmon: trace device <%s> cannot be opened\n",
135: devname);
136: exit(1); }
137:
138: if (data == YES)
139: ioctl(devfd,BSC_TRDATA,0);
140:
141: /* while number of bytes returned isn't 0,
142: * read data from trace device
143: */
144: while ((i=read(devfd,dbuff,sizeof dbuff)) > 0)
145: write(outfd,dbuff,i);
146: }
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