diff options
Diffstat (limited to 'netrom/nrattach.c')
| -rw-r--r-- | netrom/nrattach.c | 78 |
1 files changed, 39 insertions, 39 deletions
diff --git a/netrom/nrattach.c b/netrom/nrattach.c index f1ca298..804e4b8 100644 --- a/netrom/nrattach.c +++ b/netrom/nrattach.c @@ -28,14 +28,14 @@ #include "../pathnames.h" char *callsign; -int mtu = 0; +int mtu; int readconfig(char *port) { FILE *fp; char buffer[90], *s; int n = 0; - + if ((fp = fopen(CONF_NRPORTS_FILE, "r")) == NULL) { fprintf(stderr, "nrattach: cannot open nrports file\n"); return FALSE; @@ -43,7 +43,7 @@ int readconfig(char *port) while (fgets(buffer, 90, fp) != NULL) { n++; - + if ((s = strchr(buffer, '\n')) != NULL) *s = '\0'; @@ -54,10 +54,10 @@ int readconfig(char *port) fprintf(stderr, "nrattach: unable to parse line %d of the nrports file\n", n); return FALSE; } - + if (strcmp(s, port) != 0) continue; - + if ((s = strtok(NULL, " \t\r\n")) == NULL) { fprintf(stderr, "nrattach: unable to parse line %d of the nrports file\n", n); return FALSE; @@ -83,14 +83,14 @@ int readconfig(char *port) } fclose(fp); - + return TRUE; } - + fclose(fp); fprintf(stderr, "nrattach: cannot find port %s in nrports\n", port); - + return FALSE; } @@ -99,7 +99,7 @@ int getfreedev(char *dev) struct ifreq ifr; int fd; int i; - + if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { perror("nrattach: socket"); return FALSE; @@ -108,7 +108,7 @@ int getfreedev(char *dev) for (i = 0; i < INT_MAX; i++) { sprintf(dev, "nr%d", i); strcpy(ifr.ifr_name, dev); - + if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) { perror("nrattach: SIOCGIFFLAGS"); return FALSE; @@ -130,17 +130,17 @@ int startiface(char *dev, struct hostent *hp) struct ifreq ifr; char call[7]; int fd; - + if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { perror("nrattach: socket"); return FALSE; } strcpy(ifr.ifr_name, dev); - + if (hp != NULL) { ifr.ifr_addr.sa_family = AF_INET; - + ifr.ifr_addr.sa_data[0] = 0; ifr.ifr_addr.sa_data[1] = 0; ifr.ifr_addr.sa_data[2] = hp->h_addr_list[0][0]; @@ -160,7 +160,7 @@ int startiface(char *dev, struct hostent *hp) ifr.ifr_hwaddr.sa_family = ARPHRD_NETROM; memcpy(ifr.ifr_hwaddr.sa_data, call, 7); - + if (ioctl(fd, SIOCSIFHWADDR, &ifr) != 0) { perror("nrattach: SIOCSIFHWADDR"); return FALSE; @@ -186,12 +186,12 @@ int startiface(char *dev, struct hostent *hp) perror("nrattach: SIOCSIFFLAGS"); return FALSE; } - + close(fd); - + return TRUE; } - + int main(int argc, char *argv[]) { @@ -201,28 +201,28 @@ int main(int argc, char *argv[]) while ((fd = getopt(argc, argv, "i:m:v")) != -1) { switch (fd) { - case 'i': - if ((hp = gethostbyname(optarg)) == NULL) { - fprintf(stderr, "nrattach: invalid internet name/address - %s\n", optarg); - return 1; - } - break; - case 'm': - if ((mtu = atoi(optarg)) <= 0) { - fprintf(stderr, "nrattach: invalid mtu size - %s\n", optarg); - return 1; - } - break; - case 'v': - printf("nrattach: %s\n", VERSION); - return 0; - case ':': - case '?': - fprintf(stderr, "usage: nrattach [-i inetaddr] [-m mtu] [-v] port\n"); + case 'i': + if ((hp = gethostbyname(optarg)) == NULL) { + fprintf(stderr, "nrattach: invalid internet name/address - %s\n", optarg); + return 1; + } + break; + case 'm': + if ((mtu = atoi(optarg)) <= 0) { + fprintf(stderr, "nrattach: invalid mtu size - %s\n", optarg); return 1; + } + break; + case 'v': + printf("nrattach: %s\n", VERSION); + return 0; + case ':': + case '?': + fprintf(stderr, "usage: nrattach [-i inetaddr] [-m mtu] [-v] port\n"); + return 1; } } - + if ((argc - optind) != 1) { fprintf(stderr, "usage: nrattach [-i inetaddr] [-m mtu] [-v] port\n"); return 1; @@ -235,11 +235,11 @@ int main(int argc, char *argv[]) fprintf(stderr, "nrattach: cannot find free NET/ROM device\n"); return 1; } - + if (!startiface(dev, hp)) - return 1; + return 1; printf("NET/ROM port %s bound to device %s\n", argv[optind], dev); - + return 0; } |