+/* vi: set sw=4 ts=4: */
/*
* nameif.c - Naming Interfaces based on MAC address for busybox.
*
* Busybox port 2002 by Nick Fedchik <nick@fedchik.org.ua>
* Glenn McGrath <bug1@iinet.net.au>
*
- * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
+ * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
*/
-#include <sys/syslog.h>
-#include <sys/socket.h>
-#include <sys/ioctl.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
+#include "busybox.h"
+#include <syslog.h>
#include <net/if.h>
#include <netinet/ether.h>
-#include "busybox.h"
/* Older versions of net/if.h do not appear to define IF_NAMESIZE. */
#ifndef IF_NAMESIZE
struct ether_addr *mac;
} mactable_t;
-static unsigned long flags;
-
-static void serror(const char *s, ...) __attribute__ ((noreturn));
-
-static void serror(const char *s, ...)
-{
- va_list ap;
-
- va_start(ap, s);
-
- if (flags & 1) {
- openlog(bb_applet_name, 0, LOG_LOCAL0);
- vsyslog(LOG_ERR, s, ap);
- closelog();
- } else {
- bb_verror_msg(s, ap);
- putc('\n', stderr);
- }
- va_end(ap);
-
- exit(EXIT_FAILURE);
-}
-
/* Check ascii str_macaddr, convert and copy to *mac */
static struct ether_addr *cc_macaddr(const char *str_macaddr)
{
lmac = ether_aton(str_macaddr);
if (lmac == NULL)
- serror("cannot parse MAC %s", str_macaddr);
+ bb_error_msg_and_die("cannot parse MAC %s", str_macaddr);
mac = xmalloc(ETH_ALEN);
memcpy(mac, lmac, ETH_ALEN);
int if_index = 1;
mactable_t *ch;
- flags = bb_getopt_ulflags(argc, argv, "sc:", &fname);
+ if (1 & bb_getopt_ulflags(argc, argv, "sc:", &fname)) {
+ openlog(bb_applet_name, 0, LOG_LOCAL0);
+ logmode = LOGMODE_SYSLOG;
+ }
if ((argc - optind) & 1)
bb_show_usage();
char **a = argv + optind;
while (*a) {
-
if (strlen(*a) > IF_NAMESIZE)
- serror("interface name `%s' too long", *a);
- ch = xcalloc(1, sizeof(mactable_t));
- ch->ifname = bb_xstrdup(*a++);
+ bb_error_msg_and_die("interface name `%s' "
+ "too long", *a);
+ ch = xzalloc(sizeof(mactable_t));
+ ch->ifname = xstrdup(*a++);
ch->mac = cc_macaddr(*a++);
if (clist)
clist->prev = ch;
clist = ch;
}
} else {
- ifh = bb_xfopen(fname, "r");
+ ifh = xfopen(fname, "r");
while ((line = bb_get_line_from_file(ifh)) != NULL) {
char *line_ptr;
continue;
}
name_length = strcspn(line_ptr, " \t");
- ch = xcalloc(1, sizeof(mactable_t));
- ch->ifname = bb_xstrndup(line_ptr, name_length);
+ ch = xzalloc(sizeof(mactable_t));
+ ch->ifname = xstrndup(line_ptr, name_length);
if (name_length > IF_NAMESIZE)
- serror("interface name `%s' too long", ch->ifname);
+ bb_error_msg_and_die("interface name `%s' "
+ "too long", ch->ifname);
line_ptr += name_length;
line_ptr += strspn(line_ptr, " \t");
name_length = strspn(line_ptr, "0123456789ABCDEFabcdef:");
fclose(ifh);
}
- if ((ctl_sk = socket(PF_INET, SOCK_DGRAM, 0)) == -1)
- serror("socket: %m");
+ ctl_sk = xsocket(PF_INET, SOCK_DGRAM, 0);
while (clist) {
struct ifreq ifr;
strcpy(ifr.ifr_newname, ch->ifname);
if (ioctl(ctl_sk, SIOCSIFNAME, &ifr) < 0)
- serror("cannot change ifname %s to %s: %m",
+ bb_perror_msg_and_die("cannot change ifname %s to %s",
ifr.ifr_name, ch->ifname);
/* Remove list entry of renamed interface */
}
if (ch->next != NULL)
(ch->next)->prev = ch->prev;
-#ifdef CONFIG_FEATURE_CLEAN_UP
- free(ch->ifname);
- free(ch->mac);
- free(ch);
-#endif
+ if (ENABLE_FEATURE_CLEAN_UP) {
+ free(ch->ifname);
+ free(ch->mac);
+ free(ch);
+ }
}
return 0;