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vda, we once had a get_chomped_line_from_file or the like. Where is that nowadays? FIXME: use it here instead of the fgets()

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- shrink by ~9%: use common_buf, reuse are_you_root, adopt to global option_mask32
This commit is contained in:
Bernhard Reutner-Fischer 2007-01-09 10:06:19 +00:00
parent 44c2eb23dd
commit f07fe62d89
1 changed files with 15 additions and 17 deletions
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32
networking/hostname.c
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@ -18,29 +18,27 @@
static void do_sethostname(char *s, int isfile)
{
FILE *f;
char buf[256];
if (!s)
return;
if (!isfile) {
if (sethostname(s, strlen(s)) < 0) {
if (errno == EPERM)
bb_error_msg_and_die("you must be root to change the hostname");
bb_error_msg_and_die(bb_msg_perm_denied_are_you_root);
else
bb_perror_msg_and_die("sethostname");
}
} else {
f = xfopen(s, "r");
while (fgets(buf, sizeof(buf), f) != NULL) {
if (buf[0] =='#') {
while (fgets(bb_common_bufsiz1, sizeof(bb_common_bufsiz1), f) != NULL) {
if (bb_common_bufsiz1[0] == '#') {
continue;
}
chomp(buf);
do_sethostname(buf, 0);
chomp(bb_common_bufsiz1);
do_sethostname(bb_common_bufsiz1, 0);
}
#ifdef CONFIG_FEATURE_CLEAN_UP
fclose(f);
#endif
if (ENABLE_FEATURE_CLEAN_UP)
fclose(f);
}
}
@ -55,31 +53,31 @@ int hostname_main(int argc, char **argv)
};
char buf[256];
unsigned opt;
char *hostname_str = NULL;
if (argc < 1)
bb_show_usage();
opt = getopt32(argc, argv, "dfisF:", &hostname_str);
getopt32(argc, argv, "dfisF:", &hostname_str);
/* Output in desired format */
if (opt & OPT_dfis) {
if (option_mask32 & OPT_dfis) {
struct hostent *hp;
char *p;
gethostname(buf, sizeof(buf));
hp = xgethostbyname(buf);
p = strchr(hp->h_name, '.');
if (opt & OPT_f) {
if (option_mask32 & OPT_f) {
puts(hp->h_name);
} else if (opt & OPT_s) {
} else if (option_mask32 & OPT_s) {
if (p != NULL) {
*p = 0;
}
puts(hp->h_name);
} else if (opt & OPT_d) {
if (p) puts(p + 1);
} else if (opt & OPT_i) {
} else if (option_mask32 & OPT_d) {
if (p)
puts(p + 1);
} else if (option_mask32 & OPT_i) {
while (hp->h_addr_list[0]) {
printf("%s ", inet_ntoa(*(struct in_addr *) (*hp->h_addr_list++)));
}