beralt / atinout Goto Github PK

Use case:

AT+CMGF=1
OK
AT+CMGS=+31628870634
> This is the text message.→
+CMGS: 45
OK

Line of code where it gets stuck:

do {
line = fgets(buf, (int)sizeof(buf), modem);
if (line == NULL) {
fprintf(stderr, "EOF from modem\n");
return EXIT_FAILURE;
}
strcpy(buf2, line);
strip_cr(buf2);
res = fputs(buf2, output);
if (res < 0) {
fprintf(stderr, "failed to write '%s' to output file (res = %d)\n", buf2, res);
return EXIT_FAILURE;
}
} while (! is_final_result(line));

DISCLAIMER: I am far from being a sw developer, just wanted to write my linux sms utility using this nice piece of code.

If the device expects to be written again then it will never provide the "end of transmission" hence the fgets keeps listening.

Using a serial terminal emulators you can see that (look at the usecase I have reported) and you (user) keep writing giving the expected terminator at the end (ascii 26 in my case).

I've written a C file for executing AT commands sequentially as soon as I hit "AT+CMGS=XXXXXXXXX" command the program gets stuck and waits for a user interrupt then when I press Ctrl+C it executes the next command.

strcpy(command, "echo 'AT' | atinout - /dev/ttyUSB0 -");
        system(command);

strcpy(command, "echo 'AT+CMGF=1' | atinout - /dev/ttyUSB0 -");
        system(command);

strcpy(command, "echo -e 'AT+CMGS=\"1234567890\"' | atinout - /dev/ttyUSB0 -");
        system(command);

strcpy(command, "echo -e 'test messaget!!!!\x1A' | atinout - /dev/ttyUSB0 -");
        system(command);

Why does it get stuck?

How can I execute the above commands sequentially without the need of an interrupt?

Is the problem with system command?

Regards.

Hi, could anyone provide proper Makefile to compile a package for OpenWrt?

Hi,

i having issues while running spesific command, it is for starting GPS track to my Sierra Modem, here is the output:

root@raspberrypi:/home/pi# echo -e 'AT!GPSTRACK=1,255,50,1000,1'|atinout - /dev/ttyUSB0 -
AT!GPSTRACK=1,255,50,1000,1

Tracking initiated

OK

ATAaated

NO CARRIER

ATAaated

NO CARRIER

AATAaated

NO CARRIER

AAATAaated

NO CARRIER

AAAATAaated

NO CARRIER

AAAAATAaated

NO CARRIER

AAAAAATAaated

NO CARRIER

AAAAAAATAaated

NO CARRIER

AAAAAAAATAaated

NO CARRIER

AAAAAAAAATAaated

NO CARRIER

AAAAAAAAAATAaated

NO CARRIER

AAAAAAAAAAATAaated

NO CARRIER

AAAAAAAAAAAATAaated

NO CARRIER

AAAAAAAAAAAAATAaated

NO CARRIER

AAAAAAAAAAAAAATAaated

NO CARRIER

AAAAAAAAAAAAAAATAaated

NO CARRIER

AAAAAAAAAAAAAAAATAaated

NO CARRIER

AAAAAAAAAAAAAAAAATAaated

NO CARRIER

any help?