I am uploading the sources for anyone wanting to help themselves. :)
To compile the frontend Lazarus must be installed. Here, I am using version:
1.2.4+dfsg2-1
To compile the C source use:
gcc backend.c -o backend
Manual Configuration of the package: No yet post install script :(
create a directory:
/etc/network/wifi
Move both backend and front end to the same directory.
Outstanding TODO:
Before saving to an existing interfaces file, delete the old one
manually or edit the C source to do it for you.
ENJOY and LONG LIFE DEVUAN!
Compiled successfully on DEVUAN Alpha 64 bit.
On 19/08/2015, Edward Bartolo <edbarx@???> wrote:
> I am coding and testing on Devuan 64 bit.
>
> On 19/08/2015, Steve Litt <slitt@???> wrote:
>> On Wed, 19 Aug 2015 10:41:30 -0400
>> Steve Litt <slitt@???> wrote:
>>
>>> On Wed, 19 Aug 2015 14:29:02 +0100
>>> Edward Bartolo <edbarx@???> wrote:
>>>
>>> > This is the completed C backend with all functions tested to work.
>>> > Any suggestions as to modifications are welcome.
>>> >
>>> > The C code:
>>
>> Hi Edward,
>>
>> In the long run, you need to make the wifi device a variable instead of
>> hard-coding wlan0. I have no idea which method of deducing the wifi
>> device would require the least dependencies. I have a feeling it would
>> be to spawn /sbin/iwconfig, which you already have due to using iwlist.
>> Armed with the output of /sbin/iwconfig, finding the wifi device is a
>> very simple parsing task, *unless* there are multiple wifi-enabled
>> devices.
>>
>> LOL, I have to find a USB wifi dongle to continue testing your program.
>> Without any wifi device, when I did ./a.out opScan, I got a segfault.
>>
>> This thing is great. As far as I can tell, it's distro independent.
>> If you have Linux, it works. I'm going to use it on **all** my laptops,
>> and kick NetworkManager, Wicd and my homegrown wpa_supplicant helpers
>> to the curb.
>>
>> I wish all Linux software worked like this.
>>
>> Thanks,
>>
>> SteveT
>>
>> Steve Litt
>> August 2015 featured book: Troubleshooting: Just the Facts
>> http://www.troubleshooters.com/tjust
>> _______________________________________________
>> Dng mailing list
>> Dng@???
>> https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
>>
>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <dirent.h>
//using namespace std;
#define opSave 0
#define opSaveConnect 1
#define opQueryConnect 2
#define opDeleteConnect 3
#define opConnectionConnect 4
#define opDisconnectActiveConnection 5
#define opScan 6
#define opLoadExisting 7
const
char* path_to_interfaces_files = "/etc/network/wifi";
/*
1) Glib::spawn_sync instead of a pipe stream, provides a slot.
2) cmd trying to call an inexistent command still returns a valid pointer!
verify cmd exists before calling exec
*/
inline int file_exists(char* name) {
return (access(name, F_OK) != -1);
}
int exec(const char* cmd, char* out)
{
const int buf_size = 128;
FILE * pipe = popen(cmd, "r");
char buffer[buf_size];
while(!feof(pipe)) {
if(fgets(buffer, buf_size, pipe) != NULL)
{
if (out != NULL)
strcat(out, buffer);
else strcpy(out, buffer);
}
}
return pclose(pipe);
}
/* Interfaces file sample
auto lo
iface lo inet loopback
# The primary network interface
# allow-hotplug eth0
iface eth0 inet dhcp
# WIFI Configuration
# auto wlan0
iface wlan0 inet dhcp
wpa-ssid ESSID
wpa-psk "password"
*/
int saveFile(char* essid, char* pw) //argv[2], argv[3]
{
char ifilename[1024];
strcpy(ifilename, path_to_interfaces_files);
strcat(ifilename, "/");
strcat(ifilename, essid);
FILE *fp = fopen(ifilename, "ab+");
char text[1024];
strcpy(text, "auto lo\n");
fprintf(fp, text);
strcpy(text, "iface lo inet loopback\n\n");
fprintf(fp, text);
strcpy(text, "iface wlan0 inet dhcp\n");
fprintf(fp, text);
strcpy(text, " wpa-ssid ");
strcat(text, essid);
strcat(text, "\n");
fprintf(fp, text);
strcpy(text, " wpa-psk \"");
strcat(text, pw);
strcat(text, "\"\n");
fprintf(fp, text);
fclose(fp);
return 0;
}
int connectionConnect(char* essid) //argv[2]
{
char* s = 0;
char ifilename[1024];
strcpy(ifilename, path_to_interfaces_files);
strcat(ifilename, "/");
strcat(ifilename, essid);
char command[1024];
strcpy(command, "/sbin/ifup wlan0 -i ");
strcat(command, ifilename);
printf(command);
int q = exec(command, s);
printf(s);
return q;
}
int queryConnect(char* essid) //argv[2]
{
char s[50*1024];
char command[1024];
strcpy(command, "/bin/cat /etc/network/wifi/");
strcat(command, essid);
strcat(command, " | grep -A 1 wpa-ssid");
int q = exec(command, s);
printf(s);
return q;
}
int deleteConnect(char* essid) //argv[2]
{
//char* s = 0;
char command[1024];
strcpy(command, "/bin/rm /etc/network/wifi/");
strcat(command, essid);
int q = exec(command, 0);
//printf(s);
return q;
}
int disconnectActiveConnection()
{
char* s = 0;
char command[1024];
strcpy(command, "/sbin/ifdown wlan0");
int q = exec(command, s);
printf(s);
return q;
}
int scan()
{
char s[50*1024];
int u = exec("ifconfig wlan0 up", s);
s[0] = '\0';
char command[1024];
strcpy(command, "/sbin/iwlist wlan0 scanning | /bin/grep ESSID");
int q = exec(command, s);
printf(s);
return q;
}
int loadExisting()
{
DIR *dir;
struct dirent *ent;
if ((dir = opendir ("/etc/network/wifi")) != 0)
{
while ((ent = readdir (dir)) != 0)
if (!(strcmp(".", ent->d_name) == 0 || strcmp("..", ent->d_name) == 0))
printf ("%s\n", ent->d_name);
closedir (dir);
return 0;
}
else
{
perror ("");
return EXIT_FAILURE;
}
}
int main(int argc, char *argv[])
{
char *out = 0;
int switch_item = -1, i;
if (argc > 1) switch_item = atoi(argv[1]);
switch (switch_item) {
case opSave:
i = saveFile(argv[2], argv[3]);
//printf(out);
return i;
case opSaveConnect:
i = saveFile(argv[2], argv[3]);
if (i == 0) i = connectionConnect(argv[2]);
return i;
case opQueryConnect:
i = queryConnect(argv[2]);
return i;
case opDeleteConnect:
i = deleteConnect(argv[2]);
return i;
case opConnectionConnect:
i = connectionConnect(argv[2]);
return i;
case opDisconnectActiveConnection:
i = disconnectActiveConnection();
return i;
case opScan:
i = scan();
return i;
case opLoadExisting:
i = loadExisting();
return i;
}
return -1; // parameter not in range
}
::
Re: [DNG] Edward's Roaming handler:…
