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#include <sys/types.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <net/pfvar.h>
#include <net/route.h>
#include <netinet/in.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#define INET 1
#define INET6 1
void pf_print_host(struct pf_addr *, u_int16_t, u_int8_t);
char *ipv6_addrs[] = {
"::",
"::1",
"1::",
"1::1",
"0:1::1:0",
"::1:2:0",
"0:1::",
"::1:0:0:0",
"1:2:3:4:5:6:7:8",
"0:2:3:4:5:6:7:8",
"1:2:3:4:5:6:7:0",
"1:0:3:0:5:0:7:8",
"::3:4:5:6:7:8",
"1:2:3:4:5:6::",
"0:2:3::6:7:8",
"1:2:0:4:5::8",
"1::4:5:0:0:8",
"1::5:0:0:8",
"1:0:0:4::8",
"::4:5:6:0:0",
"0:0:3:4:5::",
"::4:5:0:0:0",
"1234:5678:90ab:cdef:1234:5678:90ab:cdef",
NULL
};
int
main(int argc, char *argv[])
{
char str[100];
struct pf_addr addr;
FILE *fpipe;
char **in, *out;
size_t len;
pid_t pid;
int fds[2];
int status, ret = 0;
for (in = ipv6_addrs; *in; in++) {
if (!inet_pton(AF_INET6, *in, &addr.v6))
errx(2, "inet_pton %s", *in);
if (!inet_ntop(AF_INET6, &addr.v6, str, sizeof(str)))
errx(2, "inet_ntop %s", *in);
if (strcmp(*in, str) != 0) {
warnx("not equal\nin:\t%s\nstr:\t%s", *in, str);
ret = 2;
}
if (pipe(fds) == -1)
err(2, "pipe");
if ((pid = fork()) == -1)
err(2, "fork");
if (pid == 0) {
close(fds[0]);
if (dup2(fds[1], 1) == -1)
err(2, "dup2");
close(fds[1]);
pf_print_host(&addr, 0, AF_INET6);
fflush(stdout);
_exit(0);
}
close(fds[1]);
if ((fpipe = fdopen(fds[0], "r")) == NULL)
err(2, "fdopen");
if ((out = fgetln(fpipe, &len)) == NULL)
err(2, "fgetln");
if (out[len - 1] == '\n')
out[len - 1] = '\0';
else {
char *tmp;
/* EOF without EOL, copy and add the NUL */
if ((tmp = malloc(len + 1)) == NULL)
err(2, "malloc");
memcpy(tmp, out, len);
tmp[len] = '\0';
out = tmp;
}
if (fclose(fpipe) == EOF)
err(2, "fclose");
if (wait(&status) <= 0)
err(2, "wait");
if (status != 0)
errx(2, "child exit status: %d", status);
if (strcmp(*in, out) != 0) {
warnx("not equal\nin:\t%s\nout:\t%s", *in, out);
ret = 1;
}
}
return (ret);
}
#include "pf_print_host.c"
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