isdn4k-utils/imontty/imontty.c

271 lines
6.1 KiB
C

/* tty line ISDN status monitor
*
* (c) 1995-97 Volker Götz
* (c) 2000 Paul Slootman <paul@isdn4linux.de>
*
* $Id: imontty.c,v 1.6 2002/07/15 11:58:43 paul Exp $
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <linux/isdn.h>
#include "imontty.h"
struct phone_entry {
struct phone_entry *next;
char phone[30];
char name[30];
};
static struct phone_entry *phones = NULL;
static int show_names = 1;
static int Star(char *, char *);
/*
* Wildmat routines
*/
static int wildmat(char *s, char *p) {
register int last;
register int matched;
register int reverse;
for ( ; *p; s++, p++)
switch (*p) {
case '\\':
/* Literal match with following character; fall through. */
p++;
default:
if (*s != *p)
return(0);
continue;
case '?':
/* Match anything. */
if (*s == '\0')
return(0);
continue;
case '*':
/* Trailing star matches everything. */
return(*++p ? Star(s, p) : 1);
case '[':
/* [^....] means inverse character class. */
if ((reverse = (p[1] == '^')))
p++;
for (last = 0, matched = 0; *++p && (*p != ']'); last = *p)
/* This next line requires a good C compiler. */
if (*p == '-' ? *s <= *++p && *s >= last : *s == *p)
matched = 1;
if (matched == reverse)
return(0);
continue;
}
return(*s == '\0');
}
static int Star(char *s, char *p) {
while (wildmat(s, p) == 0)
if (*++s == '\0')
return(0);
return(1);
}
/*
* Read phonebook file and create a linked
* list of phone entries.
*/
static void readphonebook(char *phonebook) {
FILE *f;
struct phone_entry *p;
struct phone_entry *q;
char line[255];
char *s;
if (!(f = fopen(phonebook, "r"))) {
sprintf(line, "Can't open `%.200s'", phonebook);
perror(line);
return;
}
p = phones;
while (p) {
q = p->next;
free(p);
p = q;
}
phones = NULL;
while (fgets(line,sizeof(line),f)) {
if ((s = strchr(line,'\n')))
*s = '\0';
if (line[0]=='#')
continue;
s = strchr(line,'\t');
*s++ = '\0';
if (strlen(line) && strlen(s)) {
q = malloc(sizeof(struct phone_entry));
q->next = phones;
strncpy(q->phone, line, sizeof(q->phone)-1);
q->phone[sizeof(q->phone)-1] = 0;
strncpy(q->name, s, sizeof(q->name)-1);
q->name[sizeof(q->name)-1] = 0;
phones = q;
}
}
fclose(f);
if (!phones)
show_names = 0;
}
/*
* Find a phone number in list of phone entries.
* If found, return corresponding name, else
* return number string.
*/
char *find_name(char *num) {
struct phone_entry *p = phones;
static char tmp[30];
sprintf(tmp, "%-.28s", num);
if (!show_names)
return(tmp);
while (p) {
if (wildmat(num, p->phone)) {
sprintf(tmp, "%-.28s", p->name);
break;
}
p = p->next;
}
return tmp;
}
void scan_str(char * buffer, char * field[], int max) {
char * buf = buffer;
int i;
char * token = strtok(buf, "\t");
for(i=0; i < max; i++) {
token = strtok(NULL, " ");
if (token)
field[i] = strdup(token);
else
field[i] = "";
}
}
void scan_int(char * buffer, int (*field)[], int max) {
char * buf = buffer;
int i;
char * token = strtok(buf, "\t");
for(i=0; i < max; i++) {
token = strtok(NULL, " ");
if (token)
(*field)[i] = atoi(token);
else
(*field)[i] = -1;
}
}
int main(int argc, char **argv) {
FILE * isdninfo;
static char fbuf[2048];
char buf[IM_BUFSIZE];
char * idmap[ISDN_MAX_CHANNELS];
int chmap[ISDN_MAX_CHANNELS];
int drmap[ISDN_MAX_CHANNELS];
int usage[ISDN_MAX_CHANNELS];
int flags[ISDN_MAX_DRIVERS];
char * phone[ISDN_MAX_CHANNELS];
int i, lines;
if (!(isdninfo = fopen("/dev/isdninfo", "r"))) {
if (!(isdninfo = fopen("/dev/isdn/isdninfo", "r"))) {
perror("imontty: can't open /dev/isdn/isdninfo nor /dev/isdninfo");
return 1;
}
}
setvbuf(isdninfo, fbuf, _IOFBF, sizeof(fbuf)); /* up to 2048 needed */
if (argc == 2)
readphonebook(argv[1]);
/* if too many args, OR phonebookarg and no phonenumbers found, give error*/
if (argc > 2 || argc == 2 && phones == NULL) {
fprintf(stderr, "imontty: usage:\n\timontty [phonebookfilename]\n\t\tdisplay ISDN channel usage\n");
exit(2);
}
fgets(buf, IM_BUFSIZE, isdninfo);
scan_str(buf, idmap, ISDN_MAX_CHANNELS);
fgets(buf, IM_BUFSIZE, isdninfo);
scan_int(buf, &chmap, ISDN_MAX_CHANNELS);
fgets(buf, IM_BUFSIZE, isdninfo);
scan_int(buf, &drmap, ISDN_MAX_CHANNELS);
fgets(buf, IM_BUFSIZE, isdninfo);
scan_int(buf, &usage, ISDN_MAX_CHANNELS);
fgets(buf, IM_BUFSIZE, isdninfo);
scan_int(buf, &flags, ISDN_MAX_DRIVERS);
fgets(buf, IM_BUFSIZE, isdninfo);
scan_str(buf, phone, ISDN_MAX_CHANNELS);
fclose(isdninfo);
printf("\n%s\n\n", "ISDN channel status:");
printf("%-20.20s\t%-6.6s%-6.6s%s\n", "Channel", "Usage", "Type", "Number");
printf("----------------------------------------------------------------------\n");
lines = 0;
for(i=0; i < ISDN_MAX_CHANNELS; i++)
if (chmap[i] >= 0 && drmap[i] >= 0) {
/* printf("%-20.20s/%i\t", idmap[i], chmap[i]); */
printf("%-20.20s\t", idmap[i]);
if (usage[i] & ISDN_USAGE_OUTGOING)
printf("%-6.6s", "Out");
else if (usage[i] == ISDN_USAGE_EXCLUSIVE)
printf("%-6.6s", "Excl.");
else if (usage[i])
printf("%-6.6s", "In");
else
printf("%-6.6s", "Off");
switch(usage[i] & ISDN_USAGE_MASK) {
case ISDN_USAGE_RAW:
printf("%-6.6s", "raw");
break;
case ISDN_USAGE_MODEM:
printf("%-6.6s", "Modem");
break;
case ISDN_USAGE_NET:
printf("%-6.6s", "Net");
break;
case ISDN_USAGE_VOICE:
printf("%-6.6s", "Voice");
break;
case ISDN_USAGE_FAX:
printf("%-6.6s", "Fax");
break;
default:
printf("%-6.6s", "");
break;
}
if(usage[i] & ISDN_USAGE_MASK)
printf("%s\n", find_name(phone[i]));
else
printf("\n");
if( !(++lines % 2) )
printf("\n");
}
return 0;
}