int
main (int argc, char *argv[])
{
struct ether_addr *valp, val;
int result, r;
char hostname[32], buf[64], *p;
valp = ether_aton ("12:34:56:78:9a:bc");
printf ("ether_aton (\"12:34:56:78:9a:bc\") = %hhx:%hhx:%hhx:%hhx:%hhx:%hhx\n",
valp->ether_addr_octet[0],
valp->ether_addr_octet[1],
valp->ether_addr_octet[2],
valp->ether_addr_octet[3],
valp->ether_addr_octet[4],
valp->ether_addr_octet[5]);
result = (valp->ether_addr_octet[0] != 0x12
|| valp->ether_addr_octet[1] != 0x34
|| valp->ether_addr_octet[2] != 0x56
|| valp->ether_addr_octet[3] != 0x78
|| valp->ether_addr_octet[4] != 0x9a
|| valp->ether_addr_octet[5] != 0xbc);
if ((r = ether_line ("0:c0:f0:46:5f:97 host.ether.com \t# comment",
&val, hostname)) == 0)
{
ether_ntoa_r (&val, buf);
p = strchr (buf, '\0');
*p++ = ' ';
strcpy (p, hostname);
printf ("ether_line (\"0:c0:f0:46:5f:97 host.ether.com\") = \"%s\"\n",
buf);
result |= strcmp ("0:c0:f0:46:5f:97 host.ether.com", buf) != 0;
}
else
{
printf ("ether_line (\"0:c0:f0:46:5f:97 host.ether.com\") = %d\n", r);
result |= 1;
}
r = ether_line ("0:c0:2:d0 foo.bar ", &val, hostname);
printf ("ether_line (\"0:c0:2:d0 foo.bar \") = %d\n", r);
result |= r != -1;
r = ether_line ("0:c0:2:d0:1a:2a ", &val, hostname);
printf ("ether_line (\"0:c0:2:d0:1a:2a \") = %d\n", r);
result |= r != -1;
return result;
}
static int
do_test (void)
{
struct ether_addr a;
char buf[1000];
if (ether_line ("00:01:02:03:04:05 aaaaa \n", &a, buf) != 0)
{
puts ("ether_line failed");
return 1;
}
int res = 0;
int i;
for (i = 0; i < ETH_ALEN; ++i)
{
printf ("%02x%s",
(int) a.ether_addr_octet[i], i + 1 == ETH_ALEN ? "" : ":");
if (a.ether_addr_octet[i] != i)
{
printf ("octet %d is %d, expected %d\n",
i, (int) a.ether_addr_octet[i], i);
res = 1;
}
}
printf (" \"%s\"\n", buf);
res |= strcmp (buf, "aaaaa") != 0;
return res;
}
int main(void)
{
struct ether_addr addr;
char hostname[ETHER_LINE_LEN];
int fd, i;
const char *ethers;
struct stat statb;
if ((fd = open(ETHER_FILE_NAME, O_RDONLY)) == -1) {
perror ("Cannot open file");
exit(1);
}
if (fstat(fd, &statb)) {
perror("Stat failed");
exit(1);
}
ethers = mmap(NULL, statb.st_size, PROT_READ, MAP_SHARED, fd, 0);
if (ethers == MAP_FAILED) {
perror("File mapping failed");
exit(1);
}
ether_line(ethers, &addr, hostname);
for (i = 0; i < 6; i++) {
printf("%02x", addr.ether_addr_octet[i]);
if (i < 5)
printf(":");
}
printf(" %s\n", hostname);
return 0;
}
static void
test_ether_line_bad_2(void)
{
struct ether_addr e;
char hostname[256];
testnum++;
if (ether_line(ether_line_bad_2_string, &e, hostname) == 0)
NOTOK("returned success");
OK();
}
/*
* Map an ethernet address to a hostname. Use either /etc/ethers or NIS/YP.
*/
int
ether_ntohost(char *hostname, const struct ether_addr *e)
{
FILE *fp;
char buf[BUFSIZ + 2];
struct ether_addr local_ether;
char local_host[MAXHOSTNAMELEN];
#ifdef YP
char *result;
int resultlen;
char *ether_a;
char *yp_domain;
#endif
if ((fp = fopen(_PATH_ETHERS, "r")) == NULL)
return (1);
while (fgets(buf,BUFSIZ,fp)) {
if (buf[0] == '#')
continue;
#ifdef YP
if (buf[0] == '+') {
if (yp_get_default_domain(&yp_domain))
continue;
ether_a = ether_ntoa(e);
if (yp_match(yp_domain, "ethers.byaddr", ether_a,
strlen(ether_a), &result, &resultlen)) {
continue;
}
strncpy(buf, result, resultlen);
buf[resultlen] = '\0';
free(result);
}
#endif
if (!ether_line(buf, &local_ether, local_host)) {
if (!bcmp((char *)&local_ether.octet[0],
(char *)&e->octet[0], 6)) {
/* We have a match. */
strcpy(hostname, local_host);
fclose(fp);
return(0);
}
}
}
fclose(fp);
return (1);
}
static void
test_ether_line(void)
{
struct ether_addr e;
char hostname[256];
testnum++;
if (ether_line(ether_line_string, &e, hostname) != 0)
NOTOK("returned error");
if (bcmp(&e, ðer_line_addr, ETHER_ADDR_LEN) != 0)
NOTOK("bad address");
if (strcmp(hostname, ether_line_hostname) != 0) {
printf("hostname: %s\n", hostname);
NOTOK("bad hostname");
}
OK();
}
int
main(int argc, char **argv)
{
/*
* The hostname buffer must be at least as large as the line buffer
* to avoid buffer overflows when ether_line(3SOCKET) is called.
* We simply use the same size for both buffers to be safe.
*/
char line[MAXHOSTNAMELEN + 256], *lf, hostname[sizeof (line)];
struct ether_addr e;
FILE *in;
if (argc > 1) {
in = fopen(argv[1], "r");
if (in == NULL) {
fprintf(stderr,
"%s: can't open %s\n", argv[0], argv[1]);
return (1);
}
} else {
in = stdin;
}
while (fgets(line, sizeof (line), in) != NULL) {
lf = strchr(line, '\n');
if (lf != NULL)
*lf = '\0';
if ((line[0] == '#') || (line[0] == '\0'))
continue;
if (ether_line(line, &e, hostname) == 0) {
(void) fprintf(stdout, "%s\t%s\n", ether_ntoa(&e),
hostname);
} else {
(void) fprintf(stderr,
"%s: ignoring line: %s\n", argv[0], line);
}
}
return (0);
}
int
main(int argc, char *argv[])
{
FILE *data_file;
char data_line[1024];
int line_no = 0;
int len;
char *p, *k, *v;
struct ether_addr eth_addr;
char hostname[256];
if (argc > 2)
usage();
if (argc == 2) {
data_file = fopen(argv[1], "r");
if (data_file == NULL) {
fprintf(stderr, "stdethers: can't open %s\n",
argv[1]);
exit(1);
}
} else
data_file = stdin;
while (read_line(data_file, data_line, sizeof(data_line))) {
line_no++;
len = strlen(data_line);
if (len > 0) {
if (data_line[0] == '#')
continue;
}
/*
* Check if we have the whole line
*/
if (data_line[len-1] != '\n') {
if (argc == 2)
fprintf(stderr,
"line %d in \"%s\" is too long",
line_no, argv[1]);
else
fprintf(stderr,
"line %d in \"stdin\" is too long",
line_no);
} else
data_line[len-1] = '\0';
p = (char *) &data_line;
k = p; /* save start of key */
while (!isspace(*p)) /* find first "space" */
p++;
while (isspace(*p)) /* move over "space" */
p++;
v = p; /* save start of value */
while (*p != '\0') /* find end of string */
p++;
if (ether_line(data_line, ð_addr, hostname) == 0)
fprintf(stdout, "%s\t%s\n", NTOA(ð_addr),
hostname);
else
fprintf(stderr, "stdethers: ignoring line %d: \"%s\"\n",
line_no, data_line);
}
return(0);
}
