diff options
Diffstat (limited to 'networking/hostname.c')
| -rw-r--r-- | networking/hostname.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/networking/hostname.c b/networking/hostname.c index 2c224be..93cbc96 100644 --- a/networking/hostname.c +++ b/networking/hostname.c @@ -24,8 +24,7 @@ static void do_sethostname(char *s, int isfile) if (sethostname(s, strlen(s)) < 0) { if (errno == EPERM) bb_error_msg_and_die(bb_msg_perm_denied_are_you_root); - else - bb_perror_msg_and_die("sethostname"); + bb_perror_msg_and_die("sethostname"); } } else { f = xfopen(s, "r"); @@ -54,27 +53,27 @@ int hostname_main(int argc, char **argv) OPT_dfis = 0xf, }; - char buf[256]; + char *buf; char *hostname_str; if (argc < 1) bb_show_usage(); getopt32(argv, "dfisF:", &hostname_str); + argv += optind; + buf = safe_gethostname(); /* Output in desired format */ if (option_mask32 & OPT_dfis) { struct hostent *hp; char *p; - gethostname(buf, sizeof(buf)); hp = xgethostbyname(buf); p = strchr(hp->h_name, '.'); if (option_mask32 & OPT_f) { puts(hp->h_name); } else if (option_mask32 & OPT_s) { - if (p != NULL) { + if (p) *p = '\0'; - } puts(hp->h_name); } else if (option_mask32 & OPT_d) { if (p) @@ -89,14 +88,15 @@ int hostname_main(int argc, char **argv) /* Set the hostname */ else if (option_mask32 & OPT_F) { do_sethostname(hostname_str, 1); - } else if (optind < argc) { - do_sethostname(argv[optind], 0); + } else if (argv[0]) { + do_sethostname(argv[0], 0); } /* Or if all else fails, * just print the current hostname */ else { - gethostname(buf, sizeof(buf)); puts(buf); } + if (ENABLE_FEATURE_CLEAN_UP) + free(buf); return 0; } |