diff options
author | Henning Brauer <henning@cvs.openbsd.org> | 2004-02-24 12:34:27 +0000 |
---|---|---|
committer | Henning Brauer <henning@cvs.openbsd.org> | 2004-02-24 12:34:27 +0000 |
commit | c19f32543e90475eadb46dfd40e9608571979088 (patch) | |
tree | 17ea25a11e295f47ee1968330ff45f29db4777ec /sbin/dhclient/dhclient.c | |
parent | e4eacc0505e446f56369ec80fac3abd8861cbdce (diff) |
teach dhclient about another invention of the last century: getopt(3)
also fix usage() that was a big lie
pb sez ok
Diffstat (limited to 'sbin/dhclient/dhclient.c')
-rw-r--r-- | sbin/dhclient/dhclient.c | 101 |
1 files changed, 46 insertions, 55 deletions
diff --git a/sbin/dhclient/dhclient.c b/sbin/dhclient/dhclient.c index f4212c5d025..2eeffb46103 100644 --- a/sbin/dhclient/dhclient.c +++ b/sbin/dhclient/dhclient.c @@ -1,8 +1,9 @@ -/* $OpenBSD: dhclient.c,v 1.11 2004/02/24 11:35:39 henning Exp $ */ +/* $OpenBSD: dhclient.c,v 1.12 2004/02/24 12:34:26 henning Exp $ */ /* DHCP Client. */ /* + * Copyright 2004 Henning Brauer <henning@openbsd.org> * Copyright (c) 1995, 1996, 1997, 1998, 1999 * The Internet Software Consortium. All rights reserved. * @@ -103,7 +104,7 @@ int save_scripts; int onetry = 0; int unknown_ok = 1; -static void usage(char *); +void usage(void); static int check_option(struct client_lease *l, int option); @@ -217,65 +218,52 @@ die: int main(int argc, char *argv[]) { - int i, fd; - struct servent *ent; - struct interface_info *ip = NULL; - int seed; - int quiet = 0; - char *s; - - s = strrchr(argv[0], '/'); - if (!s) - s = argv[0]; - else - s++; + extern char *__progname; + struct servent *ent; + struct interface_info *ip = NULL; + int ch, fd, seed, quiet = 0; /* Initially, log errors to stderr as well as to syslogd. */ - openlog(s, LOG_NDELAY, DHCPD_LOG_FACILITY); + openlog(__progname, LOG_NDELAY, DHCPD_LOG_FACILITY); setlogmask(LOG_UPTO(LOG_INFO)); - for (i = 1; i < argc; i++) { - if (!strcmp(argv[i], "-p")) { - if (++i == argc) - usage(s); - local_port = htons(atoi(argv[i])); - debug("binding to user-specified port %d", - ntohs(local_port)); - } else if (!strcmp(argv[i], "-d")) { + while ((ch = getopt(argc, argv, "c:dDl:qu")) != -1) + switch (ch) { + case 'c': + path_dhclient_conf = optarg; + break; + case 'd': no_daemon = 1; - } else if (!strcmp(argv[i], "-D")) { + break; + case 'D': save_scripts = 1; - } else if (!strcmp(argv[i], "-cf")) { - if (++i == argc) - usage(s); - path_dhclient_conf = argv[i]; - } else if (!strcmp(argv[i], "-pf")) { - if (++i == argc) - usage(s); - path_dhclient_pid = argv[i]; - } else if (!strcmp(argv[i], "-lf")) { - if (++i == argc) - usage(s); - path_dhclient_db = argv[i]; - } else if (!strcmp(argv[i], "-q")) { + break; + case 'l': + path_dhclient_db = optarg; + break; + case 'q': quiet = 1; quiet_interface_discovery = 1; - } else if (!strcmp(argv[i], "-u")) { + break; + case 'u': unknown_ok = 0; - } else if (!strcmp(argv[i], "-1")) { - onetry = 1; - } else if (argv[i][0] == '-') { - usage(s); - } else { - if ((ip = calloc(1, sizeof(struct interface_info))) == - NULL) - error("calloc"); - strlcpy(ip->name, argv[i], IFNAMSIZ); - ip->flags = INTERFACE_REQUESTED; - interfaces_requested = 1; - interfaces = ip; + break; + default: + usage(); } - } + + argc -= optind; + argv += optind; + + if (argc != 1) + usage(); + + if ((ip = calloc(1, sizeof(struct interface_info))) == NULL) + error("calloc"); + strlcpy(ip->name, argv[0], IFNAMSIZ); + ip->flags = INTERFACE_REQUESTED; + interfaces_requested = 1; + interfaces = ip; if (quiet) log_perror = 0; @@ -365,11 +353,14 @@ main(int argc, char *argv[]) return (0); } -static void -usage(char *appname) +void +usage(void) { - warn("Usage: %s [-c1u] [-p <port>] [-lf lease-file]", appname); - error(" [-pf pidfile] [interface]"); + extern char *__progname; + + fprintf(stderr, "usage: %s [-dDqu] ", __progname); + fprintf(stderr, "[-c conffile] [-l leasefile] interface\n"); + exit(1); } void |