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wlandebug(8): obtain original interface name via ifconfig_get_orig_name()

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This commit is contained in:
Andriy Voskoboinyk 2017-10-16 07:01:27 +00:00
parent c2803f1a04
commit 238c9eb65a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=324657
2 changed files with 20 additions and 3 deletions
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2
usr.sbin/wlandebug/Makefile
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@ -3,6 +3,8 @@
PROG= wlandebug
MAN= wlandebug.8
LIBADD+= ifconfig
WARNS?= 2
.include <bsd.prog.mk>

21
usr.sbin/wlandebug/wlandebug.c
View File

@ -43,6 +43,8 @@
#include <string.h>
#include <err.h>
#include <libifconfig.h>
#define N(a) (sizeof(a)/sizeof(a[0]))
const char *progname;
@ -160,6 +162,21 @@ setoid(char oid[], size_t oidlen, const char *wlan)
#endif
}
static void
get_orig_iface_name(char *oid, size_t oid_size, char *name)
{
struct ifconfig_handle *h;
char *orig_name;
h = ifconfig_open();
if (ifconfig_get_orig_name(h, name, &orig_name) < 0)
errc(1, ifconfig_err_errno(h), "cannot get interface name");
ifconfig_close(h);
setoid(oid, oid_size, orig_name);
free(orig_name);
}
int
main(int argc, char *argv[])
{
@ -179,9 +196,7 @@ main(int argc, char *argv[])
} else if (strcmp(argv[1], "-i") == 0) {
if (argc <= 2)
errx(1, "missing interface name for -i option");
if (strncmp(argv[2], "wlan", 4) != 0)
errx(1, "expecting a wlan interface name");
setoid(oid, sizeof(oid), argv[2]);
get_orig_iface_name(oid, sizeof(oid), argv[2]);
argc -= 2, argv += 2;
} else if (strcmp(argv[1], "-?") == 0)
usage();