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-rw-r--r--netrom/nrsdrv.c278
1 files changed, 139 insertions, 139 deletions
diff --git a/netrom/nrsdrv.c b/netrom/nrsdrv.c
index 92b3d6a..d5979d2 100644
--- a/netrom/nrsdrv.c
+++ b/netrom/nrsdrv.c
@@ -39,10 +39,10 @@ static char *kissdev, *nrsdev;
#define NRS_CKSUM 3
static int nrs_state = NRS_WAIT;
-static unsigned char nrs_cksum = 0;
+static unsigned char nrs_cksum;
static unsigned char nrs_rxbuffer[512];
-static int nrs_rxcount = 0;
+static int nrs_rxcount;
#define FEND 0300
#define FESC 0333
@@ -56,7 +56,7 @@ static int nrs_rxcount = 0;
static int kiss_state = KISS_WAIT;
static unsigned char kiss_rxbuffer[512];
-static int kiss_rxcount = 0;
+static int kiss_rxcount;
static void terminate(int sig)
{
@@ -81,16 +81,16 @@ static void key_rts(int fd)
/* Wait for CTS to be low */
while (1) {
/* Get CTS status */
- if (ioctl(fd, TIOCMGET, &status) < 0) {
+ if (ioctl(fd, TIOCMGET, &status) < 0) {
syslog(LOG_INFO|LOG_ERR, "TIOCMGET failed: flowcontrol disabled (%m)\n");
flowcontrol = 0;
- return;
- }
+ return;
+ }
if (status & TIOCM_CTS) {
if (debugging) {
fprintf(stderr,"CTS high: waiting\n");
}
- ioctl(fd, TIOCMIWAIT, &status);
+ ioctl(fd, TIOCMIWAIT, &status);
} else {
break;
}
@@ -100,10 +100,10 @@ static void key_rts(int fd)
fprintf(stderr,"CTS low: keying RTS\n");
}
status |= TIOCM_RTS | TIOCM_DTR;
- if (ioctl(fd, TIOCMSET, &status) < 0) {
+ if (ioctl(fd, TIOCMSET, &status) < 0) {
syslog(LOG_INFO|LOG_ERR, "TIOCMGET failed: flowcontrol disabled (%m)\n");
flowcontrol = 0;
- }
+ }
}
static void unkey_rts(int fd)
@@ -116,13 +116,13 @@ static void unkey_rts(int fd)
if (debugging) {
fprintf(stderr,"Transmission finished: unkeying RTS\n");
}
- ioctl(fd, TIOCMGET, &status);
+ ioctl(fd, TIOCMGET, &status);
status &= ~TIOCM_RTS;
- status |= TIOCM_DTR;
- if (ioctl(fd, TIOCMSET, &status) < 0) {
+ status |= TIOCM_DTR;
+ if (ioctl(fd, TIOCMSET, &status) < 0) {
syslog(LOG_INFO|LOG_ERR, "TIOCMGET failed: flowcontrol disabled (%m)\n");
flowcontrol = 0;
- }
+ }
}
static void nrs_esc(unsigned char *s, int len)
@@ -136,16 +136,16 @@ static void nrs_esc(unsigned char *s, int len)
while (len-- > 0) {
switch (c = *s++) {
- case STX:
- case ETX:
- case DLE:
- *ptr++ = DLE;
- /* Fall through */
- default:
- *ptr++ = c;
- break;
+ case STX:
+ case ETX:
+ case DLE:
+ *ptr++ = DLE;
+ /* Fall through */
+ default:
+ *ptr++ = c;
+ break;
}
-
+
csum += c;
}
@@ -170,17 +170,17 @@ static void kiss_esc(unsigned char *s, int len)
while (len-- > 0) {
switch (c = *s++) {
- case FESC:
- *ptr++ = FESC;
- *ptr++ = FESCESC;
- break;
- case FEND:
- *ptr++ = FESC;
- *ptr++ = FESCEND;
- break;
- default:
- *ptr++ = c;
- break;
+ case FESC:
+ *ptr++ = FESC;
+ *ptr++ = FESCESC;
+ break;
+ case FEND:
+ *ptr++ = FESC;
+ *ptr++ = FESCEND;
+ break;
+ default:
+ *ptr++ = c;
+ break;
}
}
@@ -192,53 +192,53 @@ static void kiss_esc(unsigned char *s, int len)
static void nrs_unesc(unsigned char *buffer, int len)
{
int i;
-
+
for (i = 0; i < len; i++) {
switch (nrs_state) {
- case NRS_WAIT:
- if (buffer[i] == STX) {
- nrs_state = NRS_DATA;
- nrs_rxcount = 0;
- nrs_cksum = 0;
- }
- break;
+ case NRS_WAIT:
+ if (buffer[i] == STX) {
+ nrs_state = NRS_DATA;
+ nrs_rxcount = 0;
+ nrs_cksum = 0;
+ }
+ break;
- case NRS_DATA:
- switch (buffer[i]) {
- case STX: /* !! */
- nrs_rxcount = 0;
- nrs_cksum = 0;
- break;
- case DLE:
- nrs_state = NRS_ESCAPE;
- break;
- case ETX:
- nrs_state = NRS_CKSUM;
- break;
- default:
- if (nrs_rxcount < 512) {
- nrs_cksum += buffer[i];
- nrs_rxbuffer[nrs_rxcount++] = buffer[i];
- }
- break;
- }
+ case NRS_DATA:
+ switch (buffer[i]) {
+ case STX: /* !! */
+ nrs_rxcount = 0;
+ nrs_cksum = 0;
break;
-
- case NRS_ESCAPE:
- nrs_state = NRS_DATA;
+ case DLE:
+ nrs_state = NRS_ESCAPE;
+ break;
+ case ETX:
+ nrs_state = NRS_CKSUM;
+ break;
+ default:
if (nrs_rxcount < 512) {
nrs_cksum += buffer[i];
nrs_rxbuffer[nrs_rxcount++] = buffer[i];
}
break;
+ }
+ break;
- case NRS_CKSUM:
- if (buffer[i] == nrs_cksum)
- kiss_esc(nrs_rxbuffer, nrs_rxcount);
- nrs_state = NRS_WAIT;
- nrs_cksum = 0;
- nrs_rxcount = 0;
- break;
+ case NRS_ESCAPE:
+ nrs_state = NRS_DATA;
+ if (nrs_rxcount < 512) {
+ nrs_cksum += buffer[i];
+ nrs_rxbuffer[nrs_rxcount++] = buffer[i];
+ }
+ break;
+
+ case NRS_CKSUM:
+ if (buffer[i] == nrs_cksum)
+ kiss_esc(nrs_rxbuffer, nrs_rxcount);
+ nrs_state = NRS_WAIT;
+ nrs_cksum = 0;
+ nrs_rxcount = 0;
+ break;
}
}
}
@@ -246,57 +246,57 @@ static void nrs_unesc(unsigned char *buffer, int len)
static void kiss_unesc(unsigned char *buffer, int len)
{
int i;
-
+
for (i = 0; i < len; i++) {
switch (kiss_state) {
- case KISS_WAIT:
- if (buffer[i] == FEND) {
- kiss_state = KISS_CTRL;
- kiss_rxcount = 0;
- }
- break;
+ case KISS_WAIT:
+ if (buffer[i] == FEND) {
+ kiss_state = KISS_CTRL;
+ kiss_rxcount = 0;
+ }
+ break;
- case KISS_CTRL:
- if ((buffer[i] & 0x0F) == 0x00) {
- kiss_state = KISS_DATA;
- kiss_rxcount = 0;
- } else {
- kiss_state = KISS_WAIT;
- kiss_rxcount = 0;
- }
- break;
+ case KISS_CTRL:
+ if ((buffer[i] & 0x0F) == 0x00) {
+ kiss_state = KISS_DATA;
+ kiss_rxcount = 0;
+ } else {
+ kiss_state = KISS_WAIT;
+ kiss_rxcount = 0;
+ }
+ break;
- case KISS_DATA:
- switch (buffer[i]) {
- case FEND:
- if (kiss_rxcount > 2)
- nrs_esc(kiss_rxbuffer, kiss_rxcount);
- kiss_state = KISS_WAIT;
- kiss_rxcount = 0;
- break;
- case FESC:
- kiss_state = KISS_ESCAPE;
- break;
- default:
- if (kiss_rxcount < 512)
- kiss_rxbuffer[kiss_rxcount++] = buffer[i];
- break;
- }
+ case KISS_DATA:
+ switch (buffer[i]) {
+ case FEND:
+ if (kiss_rxcount > 2)
+ nrs_esc(kiss_rxbuffer, kiss_rxcount);
+ kiss_state = KISS_WAIT;
+ kiss_rxcount = 0;
+ break;
+ case FESC:
+ kiss_state = KISS_ESCAPE;
+ break;
+ default:
+ if (kiss_rxcount < 512)
+ kiss_rxbuffer[kiss_rxcount++] = buffer[i];
break;
+ }
+ break;
- case KISS_ESCAPE:
- kiss_state = KISS_DATA;
- switch (buffer[i]) {
- case FESCESC:
- if (kiss_rxcount < 512)
- kiss_rxbuffer[kiss_rxcount++] = FESC;
- break;
- case FESCEND:
- if (kiss_rxcount < 512)
- kiss_rxbuffer[kiss_rxcount++] = FEND;
- break;
- }
+ case KISS_ESCAPE:
+ kiss_state = KISS_DATA;
+ switch (buffer[i]) {
+ case FESCESC:
+ if (kiss_rxcount < 512)
+ kiss_rxbuffer[kiss_rxcount++] = FESC;
break;
+ case FESCEND:
+ if (kiss_rxcount < 512)
+ kiss_rxbuffer[kiss_rxcount++] = FEND;
+ break;
+ }
+ break;
}
}
}
@@ -310,33 +310,33 @@ int main(int argc, char *argv[])
while ((c = getopt(argc, argv, "dfls:v")) != -1) {
switch (c) {
- case 'd':
- debugging = TRUE;
- break;
- case 'f':
- flowcontrol = TRUE;
- break;
- case 'l':
- logging = TRUE;
- break;
- case 's':
- if ((speed = atoi(optarg)) <= 0) {
- fprintf(stderr, "nrsdrv: invalid speed %s\n", optarg);
- return 1;
- }
- break;
- case 'v':
- printf("kissattach: %s\n", VERSION);
- return 0;
- case ':':
- case '?':
- fprintf(stderr, "usage: nrsdrv [-f] [-l] [-s speed] [-v] kisstty nrstty\n");
+ case 'd':
+ debugging = TRUE;
+ break;
+ case 'f':
+ flowcontrol = TRUE;
+ break;
+ case 'l':
+ logging = TRUE;
+ break;
+ case 's':
+ if ((speed = atoi(optarg)) <= 0) {
+ fprintf(stderr, "nrsdrv: invalid speed %s\n", optarg);
return 1;
+ }
+ break;
+ case 'v':
+ printf("kissattach: %s\n", VERSION);
+ return 0;
+ case ':':
+ case '?':
+ fprintf(stderr, "usage: nrsdrv [-f] [-l] [-s speed] [-v] kisstty nrstty\n");
+ return 1;
}
}
if (debugging) {
- fprintf(stderr,"Flow control %s\n",
+ fprintf(stderr,"Flow control %s\n",
flowcontrol ? "enabled" : "disabled");
}
@@ -399,7 +399,7 @@ int main(int argc, char *argv[])
openlog("nrsdrv", LOG_PID, LOG_DAEMON);
syslog(LOG_INFO, "KISS device %s connected to NRS device %s\n", argv[optind + 0], argv[optind + 1]);
}
-
+
signal(SIGHUP, SIG_IGN);
signal(SIGTERM, terminate);
@@ -421,7 +421,7 @@ int main(int argc, char *argv[])
for (;;) {
FD_ZERO(&read_fd);
-
+
FD_SET(kissfd, &read_fd);
FD_SET(nrsfd, &read_fd);
@@ -437,7 +437,7 @@ int main(int argc, char *argv[])
}
kiss_unesc(buffer, n);
}
-
+
if (FD_ISSET(nrsfd, &read_fd)) {
if ((n = read(nrsfd, buffer, 512)) <= 0) {
if (logging) {
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-03 13:33:06 +0000