diff options
Diffstat (limited to 'sbin/ifconfig/ifconfig.c')
| -rw-r--r-- | sbin/ifconfig/ifconfig.c | 26 |
1 files changed, 16 insertions, 10 deletions
diff --git a/sbin/ifconfig/ifconfig.c b/sbin/ifconfig/ifconfig.c index 490f2de7cfa..776efd51acb 100644 --- a/sbin/ifconfig/ifconfig.c +++ b/sbin/ifconfig/ifconfig.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ifconfig.c,v 1.121 2004/12/01 15:57:44 jmc Exp $ */ +/* $OpenBSD: ifconfig.c,v 1.122 2004/12/07 00:10:05 deraadt Exp $ */ /* $NetBSD: ifconfig.c,v 1.40 1997/10/01 02:19:43 enami Exp $ */ /* @@ -77,7 +77,7 @@ static const char copyright[] = #if 0 static const char sccsid[] = "@(#)ifconfig.c 8.2 (Berkeley) 2/16/94"; #else -static const char rcsid[] = "$OpenBSD: ifconfig.c,v 1.121 2004/12/01 15:57:44 jmc Exp $"; +static const char rcsid[] = "$OpenBSD: ifconfig.c,v 1.122 2004/12/07 00:10:05 deraadt Exp $"; #endif #endif /* not lint */ @@ -348,7 +348,7 @@ void getsock(int); void printif(struct ifreq *, int); void printb(char *, unsigned short, char *); void status(int, struct sockaddr_dl *); -void usage(void); +void usage(int); const char *get_string(const char *, const char *, u_int8_t *, int *); void print_string(const u_int8_t *, int); char *sec2str(time_t); @@ -428,8 +428,11 @@ main(int argc, char *argv[]) int Cflag = 0; int i; - if (argc < 2) - usage(); + /* If no args at all, print all interfaces. */ + if (argc < 2) { + printif(NULL, ifaliases); + exit(0); + } argc--, argv++; if (!strcmp(*argv, "-a")) aflag = 1; @@ -447,11 +450,13 @@ main(int argc, char *argv[]) mflag = 1; argc--, argv++; if (argc < 1) - usage(); + usage(1); if (strlcpy(name, *argv, sizeof(name)) >= IFNAMSIZ) errx(1, "interface name '%s' too long", *argv); } else if (!strcmp(*argv, "-C")) { Cflag = 1; + } else if (*argv[0] == '-') { + usage(0); } else if (strlcpy(name, *argv, sizeof(name)) >= IFNAMSIZ) errx(1, "interface name '%s' too long", *argv); argc--, argv++; @@ -468,13 +473,13 @@ main(int argc, char *argv[]) } if (Cflag) { if (argc > 0 || mflag || aflag) - usage(); + usage(1); list_cloners(); exit(0); } if (aflag) { if (argc > 0) - usage(); + usage(0); printif(NULL, ifaliases); exit(0); } @@ -2693,8 +2698,9 @@ ipx_getaddr(const char *addr, int which) printf("Attempt to set IPX netmask will be ineffectual\n"); } +/* Print usage, exit(value) if value is non-zero. */ void -usage(void) +usage(int value) { fprintf(stderr, "usage: ifconfig interface [address_family] [address [dest_address]]\n" @@ -2724,7 +2730,7 @@ usage(void) " ifconfig -m interface [address_family]\n" " ifconfig interface create\n" " ifconfig interface destroy\n"); - exit(1); + exit(value); } static int __tag = 0; |