#define FORMAT_SCHEME 1 /* To be used as a Pcmcia Scheme */
#define WTYPE_ESSID 0 /* Display ESSID or NWID */
#define WTYPE_AP 1 /* Display AP/Cell Address */
+#define WTYPE_FREQ 2 /* Display frequency/channel */
+#define WTYPE_MODE 3 /* Display mode */
+#define WTYPE_PROTO 4 /* Display protocol name */
/*
* Note on Pcmcia Schemes :
/*
* Just for the heck of it, let's try to not link with iwlib.
* This will keep the binary small and tiny...
+ *
+ * Note : maybe it's time to admit that we have lost the battle
+ * and we start using iwlib ? Maybe we should default to dynamic
+ * lib first...
*/
/*------------------------------------------------------------------*/
eth->ether_addr_octet[4], eth->ether_addr_octet[5]);
}
+/*------------------------------------------------------------------*/
+/*
+ * Convert our internal representation of frequencies to a floating point.
+ */
+double
+iw_freq2float(iwfreq * in)
+{
+#ifdef WE_NOLIBM
+ /* Version without libm : slower */
+ int i;
+ double res = (double) in->m;
+ for(i = 0; i < in->e; i++)
+ res *= 10;
+ return(res);
+#else /* WE_NOLIBM */
+ /* Version with libm : faster */
+ return ((double) in->m) * pow(10,in->e);
+#endif /* WE_NOLIBM */
+}
+
+/*------------------------------------------------------------------*/
+/*
+ * Output a frequency with proper scaling
+ */
+void
+iw_print_freq(char * buffer,
+ double freq)
+{
+ if(freq < KILO)
+ sprintf(buffer, "Channel:%g", freq);
+ else
+ {
+ if(freq >= GIGA)
+ sprintf(buffer, "Frequency:%gGHz", freq / GIGA);
+ else
+ {
+ if(freq >= MEGA)
+ sprintf(buffer, "Frequency:%gMHz", freq / MEGA);
+ else
+ sprintf(buffer, "Frequency:%gkHz", freq / KILO);
+ }
+ }
+}
+
+/*------------------------------------------------------------------*/
+const char * const iw_operation_mode[] = { "Auto",
+ "Ad-Hoc",
+ "Managed",
+ "Master",
+ "Repeater",
+ "Secondary",
+ "Monitor" };
+
/************************ DISPLAY ESSID/NWID ************************/
/*------------------------------------------------------------------*/
/* Get ESSID */
strncpy(wrq.ifr_name, ifname, IFNAMSIZ);
wrq.u.essid.pointer = (caddr_t) essid;
- wrq.u.essid.length = 0;
+ wrq.u.essid.length = IW_ESSID_MAX_SIZE + 1;
wrq.u.essid.flags = 0;
if(ioctl(skfd, SIOCGIWESSID, &wrq) < 0)
return(-1);
printf("%s\n", buffer);
break;
default:
- printf("%-8.8s Access Point: %s\n", ifname, buffer);
+ printf("%-8.8s Access Point/Cell: %s\n", ifname, buffer);
+ break;
+ }
+
+ return(0);
+}
+
+/****************************** OTHER ******************************/
+
+/*------------------------------------------------------------------*/
+/*
+ * Display the frequency (or channel) if possible
+ */
+static int
+print_freq(int skfd,
+ const char * ifname,
+ int format)
+{
+ struct iwreq wrq;
+ double freq;
+ char buffer[64];
+
+ /* Get frequency / channel */
+ strncpy(wrq.ifr_name, ifname, IFNAMSIZ);
+ if(ioctl(skfd, SIOCGIWFREQ, &wrq) < 0)
+ return(-1);
+
+ /* Print */
+ freq = iw_freq2float(&(wrq.u.freq));
+ switch(format)
+ {
+ case FORMAT_SCHEME:
+ printf("%g\n", freq);
+ break;
+ default:
+ iw_print_freq(buffer, freq);
+ printf("%-8.8s %s\n", ifname, buffer);
+ break;
+ }
+
+ return(0);
+}
+
+/*------------------------------------------------------------------*/
+/*
+ * Display the mode if possible
+ */
+static int
+print_mode(int skfd,
+ const char * ifname,
+ int format)
+{
+ struct iwreq wrq;
+
+ /* Get frequency / channel */
+ strncpy(wrq.ifr_name, ifname, IFNAMSIZ);
+ if(ioctl(skfd, SIOCGIWMODE, &wrq) < 0)
+ return(-1);
+ if(wrq.u.mode >= IW_NUM_OPER_MODE)
+ return(-2);
+
+ /* Print */
+ switch(format)
+ {
+ case FORMAT_SCHEME:
+ printf("%d\n", wrq.u.mode);
+ break;
+ default:
+ printf("%-8.8s Mode:%s\n", ifname, iw_operation_mode[wrq.u.mode]);
+ break;
+ }
+
+ return(0);
+}
+
+/*------------------------------------------------------------------*/
+/*
+ * Display the ESSID if possible
+ */
+static int
+print_protocol(int skfd,
+ const char * ifname,
+ int format)
+{
+ struct iwreq wrq;
+ char proto[IFNAMSIZ + 1]; /* Protocol */
+ char pproto[IFNAMSIZ + 1]; /* Pcmcia format */
+ unsigned int i;
+ unsigned int j;
+
+ /* Get Protocol name */
+ strncpy(wrq.ifr_name, ifname, IFNAMSIZ);
+ if(ioctl(skfd, SIOCGIWNAME, &wrq) < 0)
+ return(-1);
+ strncpy(proto, wrq.u.name, IFNAMSIZ);
+ proto[IFNAMSIZ] = '\0';
+
+ switch(format)
+ {
+ case FORMAT_SCHEME:
+ /* Strip all white space and stuff */
+ j = 0;
+ for(i = 0; i < strlen(proto); i++)
+ if(isalnum(proto[i]))
+ pproto[j++] = proto[i];
+ pproto[j] = '\0';
+ if((j == 0) || (j > 32))
+ return(-2);
+ printf("%s\n", pproto);
+ break;
+ default:
+ printf("%-8.8s Protocol Name:\"%s\"\n", ifname, proto);
break;
}
int ret;
/* Check wtype */
- if(wtype == WTYPE_AP)
+ switch(wtype)
{
+ case WTYPE_AP:
/* Try to print an AP */
ret = print_ap(skfd, ifname, format);
- return(ret);
- }
+ break;
- /* Try to print an ESSID */
- ret = print_essid(skfd, ifname, format);
+ case WTYPE_FREQ:
+ /* Try to print frequency */
+ ret = print_freq(skfd, ifname, format);
+ break;
- if(ret < 0)
- {
- /* Try to print a nwid */
- ret = print_nwid(skfd, ifname, format);
+ case WTYPE_MODE:
+ /* Try to print the mode */
+ ret = print_mode(skfd, ifname, format);
+ break;
+
+ case WTYPE_PROTO:
+ /* Try to print the protocol */
+ ret = print_protocol(skfd, ifname, format);
+ break;
+
+ default:
+ /* Try to print an ESSID */
+ ret = print_essid(skfd, ifname, format);
+ if(ret < 0)
+ {
+ /* Try to print a nwid */
+ ret = print_nwid(skfd, ifname, format);
+ }
}
return(ret);
{
fputs("Usage iwgetid [OPTIONS] [ifname]\n"
" Options are:\n"
- " -a,--ap Print the access point address\n"
- " -h,--help Print this message\n"
- " -s,--scheme Format the output as a PCMCIA scheme identifier\n",
+ " -a,--ap Print the access point address\n"
+ " -f,--freq Print the current frequency\n"
+ " -m,--mode Print the current mode\n"
+ " -p,--protocol Print the protocol name\n"
+ " -s,--scheme Format the output as a PCMCIA scheme identifier\n"
+ " -h,--help Print this message\n",
status ? stderr : stdout);
exit(status);
}
static const struct option long_opts[] = {
{ "ap", no_argument, NULL, 'a' },
+ { "freq", no_argument, NULL, 'f' },
+ { "mode", no_argument, NULL, 'm' },
+ { "protocol", no_argument, NULL, 'p' },
{ "help", no_argument, NULL, 'h' },
{ "scheme", no_argument, NULL, 's' },
{ NULL, 0, NULL, 0 }
int ret = -1;
/* Check command line arguments */
- while((opt = getopt_long(argc, argv, "ahs", long_opts, NULL)) > 0)
+ while((opt = getopt_long(argc, argv, "afhmps", long_opts, NULL)) > 0)
{
switch(opt)
{
wtype = WTYPE_AP;
break;
+ case 'f':
+ /* User wants frequency/channel */
+ wtype = WTYPE_FREQ;
+ break;
+
+ case 'm':
+ /* User wants the mode */
+ wtype = WTYPE_MODE;
+ break;
+
+ case 'p':
+ /* User wants the protocol */
+ wtype = WTYPE_PROTO;
+ break;
+
case 'h':
iw_usage(0);
break;
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