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Make obreader setup the tty itself

This commit is contained in:
Stefan `Sec` Zehl 2012-06-03 11:37:54 +02:00
parent 1237f1a2ca
commit 133fc642b7
1 changed files with 71 additions and 1 deletions
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72
tools/reader/obreader.c
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@ -18,6 +18,7 @@
#include <string.h>
#include <pwd.h>
#include <stdlib.h>
#include <termios.h>
#define INTERVAL 1
@ -72,6 +73,74 @@ void setnonblocking(int fd) {
return;
}
void setupserial(int fd){
struct termios config;
if(!isatty(fd)) {
fprintf(stderr,"fd %d is not a tty?",fd);
exit(EXIT_FAILURE);
};
if(tcgetattr(fd, &config) < 0) {
perror("tcgetattr");
exit(EXIT_FAILURE);
};
//
// Input flags - Turn off input processing
// convert break to null byte, no CR to NL translation,
// no NL to CR translation, don't mark parity errors or breaks
// no input parity check, don't strip high bit off,
// no XON/XOFF software flow control
//
config.c_iflag &= ~(IGNBRK | BRKINT | ICRNL |
INLCR | PARMRK | INPCK | ISTRIP | IXON);
//
// Output flags - Turn off output processing
// no CR to NL translation, no NL to CR-NL translation,
// no NL to CR translation, no column 0 CR suppression,
// no Ctrl-D suppression, no fill characters, no case mapping,
// no local output processing
//
// config.c_oflag &= ~(OCRNL | ONLCR | ONLRET |
// ONOCR | ONOEOT| OFILL | OLCUC | OPOST);
config.c_oflag = 0;
//
// No line processing:
// echo off, echo newline off, canonical mode off,
// extended input processing off, signal chars off
//
config.c_lflag &= ~(ECHO | ECHONL | ICANON | IEXTEN | ISIG);
//
// Turn off character processing
// clear current char size mask, no parity checking,
// no output processing, force 8 bit input
//
config.c_cflag &= ~(CSIZE | PARENB);
config.c_cflag |= CS8;
//
// One input byte is enough to return from read()
// Inter-character timer off
//
config.c_cc[VMIN] = 1;
config.c_cc[VTIME] = 0;
//
// Communication speed (simple version, using the predefined
// constants)
//
/*
if(cfsetispeed(&config, B9600) < 0 || cfsetospeed(&config, B9600) < 0) {
perror("cfset[io]speed");
exit(EXIT_FAILURE);
}
*/
//
// Finally, apply the configuration
//
if(tcsetattr(fd, TCSAFLUSH, &config) < 0) {
perror("tcsetattr");
exit(EXIT_FAILURE);
};
};
/* Reference is https://r0ket.badge.events.ccc.de/tracking:reader */
void pkt_cleanup(int idx){
static u_int32_t ctr;
@ -285,7 +354,8 @@ and sends them off via TCP/UDP to a central host\n\n\
perror("open(device)");
exit(EXIT_FAILURE);
};
setnonblocking(devfd);
setupserial(devfd);
setnonblocking(devfd);
setup_r0ket(devfd);
/* Open & prep outout device */