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*: intrduce and use safe_gethostname. By Tito <farmatito AT tiscali.it>

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safe_gethostname                                       -      48     +48
glob3                                                 35      37      +2
timestamp_and_log                                    314     315      +1
udhcp_send_kernel_packet                             234     231      -3
scan_tree                                            275     271      -4
passwd_main                                         1074    1070      -4
print_login_prompt                                    68      58     -10
obscure                                              392     377     -15
syslogd_main                                         882     866     -16
print_login_issue                                    516     478     -38
hostname_main                                        278     223     -55
parse_and_put_prompt                                 825     756     -69
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/9 up/down: 51/-214)          Total: -163 bytes
   text    data     bss     dec     hex filename
 798791     728    7484  807003   c505b busybox_old
 798631     728    7484  806843   c4fbb busybox_unstripped
This commit is contained in:
Denis Vlasenko
2008-02-25 23:23:58 +00:00
parent 394eebed66
commit 6f1713f216
8 changed files with 32 additions and 45 deletions
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18
networking/hostname.c
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@@ -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;
}