#include <time.h>
#include <errno.h>
-#include <ctype.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <syslog.h>
#include <signal.h>
#include <string.h>
-#include <strings.h>
#include <stdbool.h>
#include <net/if.h>
#include <sys/wait.h>
#include <sys/syscall.h>
#include <arpa/inet.h>
-#include <linux/if_addr.h>
#include "odhcp6c.h"
#include "ra.h"
#include "bfd.h"
#endif
-#ifndef IN6_IS_ADDR_UNIQUELOCAL
-#define IN6_IS_ADDR_UNIQUELOCAL(a) \
- ((((__const uint32_t *) (a))[0] & htonl (0xfe000000)) \
- == htonl (0xfc000000))
-#endif
static void sighandler(int signal);
static int usage(void);
static int urandom_fd = -1, allow_slaac_only = 0;
static bool bound = false, release = true;
static time_t last_update = 0;
-static char *ifname = NULL;
+
int main(_unused int argc, char* const argv[])
{
}
openlog("odhcp6c", logopt, LOG_DAEMON);
- ifname = argv[optind];
+ const char *ifname = argv[optind];
if (help || !ifname)
return usage();
read(urandom_fd, buf, len);
}
-
bool odhcp6c_is_bound(void)
{
return bound;
}
-
-bool odhcp6c_addr_in_scope(const struct in6_addr *addr)
-{
- FILE *fd = fopen("/proc/net/if_inet6", "r");
- int len;
- char buf[256];
-
- if (fd == NULL)
- return false;
-
- while (fgets(buf, sizeof(buf), fd)) {
- struct in6_addr inet6_addr;
- uint32_t flags, dummy;
- unsigned int i;
- char name[8], addr_buf[32];
-
- len = strlen(buf);
-
- if ((len <= 0) || buf[len - 1] != '\n')
- return false;
-
- buf[--len] = '\0';
-
- if (sscanf(buf, "%s %x %x %x %x %s",
- addr_buf, &dummy, &dummy, &dummy, &flags, name) != 6)
- return false;
-
- if (strcmp(name, ifname) ||
- (flags & (IFA_F_DADFAILED | IFA_F_TENTATIVE | IFA_F_DEPRECATED)))
- continue;
-
- for (i = 0; i < sizeof(addr_buf); i++) {
- if (!isxdigit(addr_buf[i]) || isupper(addr_buf[i]))
- return false;
- }
-
- memset(&inet6_addr, 0, sizeof(inet6_addr));
- for (i = 0; i < (sizeof(addr_buf) / 2); i++) {
- unsigned char byte;
- static const char hex[] = "0123456789abcdef";
- byte = ((index(hex, addr_buf[i * 2]) - hex) << 4) |
- (index(hex, addr_buf[i * 2 + 1]) - hex);
- inet6_addr.s6_addr[i] = byte;
- }
-
- if ((IN6_IS_ADDR_LINKLOCAL(&inet6_addr) == IN6_IS_ADDR_LINKLOCAL(addr)) &&
- (IN6_IS_ADDR_UNIQUELOCAL(&inet6_addr) == IN6_IS_ADDR_UNIQUELOCAL(addr)))
- return true;
- }
- return false;
-}
-
static void sighandler(int signal)
{
if (signal == SIGCHLD)